walk

package module
v0.0.0-...-48805dc Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: May 29, 2013 License: BSD-3-Clause Imports: 20 Imported by: 0

README 

About Walk
==========

Walk is a "Windows Application Library Kit" for the Go Programming Language.

Its focus is graphical user interfaces but there is some more stuff.

Setup
=====

Make sure you have a working Go installation.
See [Getting Started](http://golang.org/doc/install.html)

Now run `go get github.com/lxn/walk`

Using Walk
==========

The preferred way to create GUIs with Walk is to use its declarative sub package,
as illustrated in this small example:

	package main
	
	import (
		"github.com/lxn/walk"
		. "github.com/lxn/walk/declarative"
		"strings"
	)
	
	func main() {
		var inTE, outTE *walk.TextEdit
	
		MainWindow{
			Title:   "SCREAMO",
			MinSize: Size{600, 400},
			Layout:  VBox{},
			Children: []Widget{
				HSplitter{
					Children: []Widget{
						TextEdit{AssignTo: &inTE},
						TextEdit{AssignTo: &outTE, ReadOnly: true},
					},
				},
				PushButton{
					Text: "SCREAM",
					OnClicked: func() {
						outTE.SetText(strings.ToUpper(inTE.Text()))
					},
				},
			},
		}.Run()
	}

There are some [examples](examples) that should get you started.

Application Manifest Files
==========================
Walk requires Common Controls 6. This means that you must put an appropriate
application manifest file either next to your executable or embedded as a
resource.

You can copy one of the application manifest files that come with the examples.

IMPORTANT: Do not launch your executable before the manifest file is in place.
If you do anyway, the program will not run properly. And worse, Windows will not
recognize a manifest file, you later drop next to the executable. To fix this,
rebuild your executable and only launch it with a manifest file in place.

Documentation

Index

Constants

View Source 
const (
	DlgCmdNone     = 0
	DlgCmdOK       = IDOK
	DlgCmdCancel   = IDCANCEL
	DlgCmdAbort    = IDABORT
	DlgCmdRetry    = IDRETRY
	DlgCmdIgnore   = IDIGNORE
	DlgCmdYes      = IDYES
	DlgCmdNo       = IDNO
	DlgCmdClose    = IDCLOSE
	DlgCmdHelp     = IDHELP
	DlgCmdTryAgain = IDTRYAGAIN
	DlgCmdContinue = IDCONTINUE
	DlgCmdTimeout  = IDTIMEOUT
)
View Source 
const (
	KeyLButton           Key = VK_LBUTTON
	KeyRButton               = VK_RBUTTON
	KeyCancel                = VK_CANCEL
	KeyMButton               = VK_MBUTTON
	KeyXButton1              = VK_XBUTTON1
	KeyXButton2              = VK_XBUTTON2
	KeyBack                  = VK_BACK
	KeyTab                   = VK_TAB
	KeyClear                 = VK_CLEAR
	KeyReturn                = VK_RETURN
	KeyShift                 = VK_SHIFT
	KeyControl               = VK_CONTROL
	KeyAlt                   = VK_MENU
	KeyMenu                  = VK_MENU
	KeyPause                 = VK_PAUSE
	KeyCapital               = VK_CAPITAL
	KeyKana                  = VK_KANA
	KeyHangul                = VK_HANGUL
	KeyJunja                 = VK_JUNJA
	KeyFinal                 = VK_FINAL
	KeyHanja                 = VK_HANJA
	KeyKanji                 = VK_KANJI
	KeyEscape                = VK_ESCAPE
	KeyConvert               = VK_CONVERT
	KeyNonconvert            = VK_NONCONVERT
	KeyAccept                = VK_ACCEPT
	KeyModeChange            = VK_MODECHANGE
	KeySpace                 = VK_SPACE
	KeyPrior                 = VK_PRIOR
	KeyNext                  = VK_NEXT
	KeyEnd                   = VK_END
	KeyHome                  = VK_HOME
	KeyLeft                  = VK_LEFT
	KeyUp                    = VK_UP
	KeyRight                 = VK_RIGHT
	KeyDown                  = VK_DOWN
	KeySelect                = VK_SELECT
	KeyPrint                 = VK_PRINT
	KeyExecute               = VK_EXECUTE
	KeySnapshot              = VK_SNAPSHOT
	KeyInsert                = VK_INSERT
	KeyDelete                = VK_DELETE
	KeyHelp                  = VK_HELP
	Key0                     = 0x30
	Key1                     = 0x31
	Key2                     = 0x32
	Key3                     = 0x33
	Key4                     = 0x34
	Key5                     = 0x35
	Key6                     = 0x36
	Key7                     = 0x37
	Key8                     = 0x38
	Key9                     = 0x39
	KeyA                     = 0x41
	KeyB                     = 0x42
	KeyC                     = 0x43
	KeyD                     = 0x44
	KeyE                     = 0x45
	KeyF                     = 0x46
	KeyG                     = 0x47
	KeyH                     = 0x48
	KeyI                     = 0x49
	KeyJ                     = 0x4A
	KeyK                     = 0x4B
	KeyL                     = 0x4C
	KeyM                     = 0x4D
	KeyN                     = 0x4E
	KeyO                     = 0x4F
	KeyP                     = 0x50
	KeyQ                     = 0x51
	KeyR                     = 0x52
	KeyS                     = 0x53
	KeyT                     = 0x54
	KeyU                     = 0x55
	KeyV                     = 0x56
	KeyW                     = 0x57
	KeyX                     = 0x58
	KeyY                     = 0x59
	KeyZ                     = 0x5A
	KeyLWin                  = VK_LWIN
	KeyRWin                  = VK_RWIN
	KeyApps                  = VK_APPS
	KeySleep                 = VK_SLEEP
	KeyNumpad0               = VK_NUMPAD0
	KeyNumpad1               = VK_NUMPAD1
	KeyNumpad2               = VK_NUMPAD2
	KeyNumpad3               = VK_NUMPAD3
	KeyNumpad4               = VK_NUMPAD4
	KeyNumpad5               = VK_NUMPAD5
	KeyNumpad6               = VK_NUMPAD6
	KeyNumpad7               = VK_NUMPAD7
	KeyNumpad8               = VK_NUMPAD8
	KeyNumpad9               = VK_NUMPAD9
	KeyMultiply              = VK_MULTIPLY
	KeyAdd                   = VK_ADD
	KeySeparator             = VK_SEPARATOR
	KeySubtract              = VK_SUBTRACT
	KeyDecimal               = VK_DECIMAL
	KeyDivide                = VK_DIVIDE
	KeyF1                    = VK_F1
	KeyF2                    = VK_F2
	KeyF3                    = VK_F3
	KeyF4                    = VK_F4
	KeyF5                    = VK_F5
	KeyF6                    = VK_F6
	KeyF7                    = VK_F7
	KeyF8                    = VK_F8
	KeyF9                    = VK_F9
	KeyF10                   = VK_F10
	KeyF11                   = VK_F11
	KeyF12                   = VK_F12
	KeyF13                   = VK_F13
	KeyF14                   = VK_F14
	KeyF15                   = VK_F15
	KeyF16                   = VK_F16
	KeyF17                   = VK_F17
	KeyF18                   = VK_F18
	KeyF19                   = VK_F19
	KeyF20                   = VK_F20
	KeyF21                   = VK_F21
	KeyF22                   = VK_F22
	KeyF23                   = VK_F23
	KeyF24                   = VK_F24
	KeyNumlock               = VK_NUMLOCK
	KeyScroll                = VK_SCROLL
	KeyLShift                = VK_LSHIFT
	KeyRShift                = VK_RSHIFT
	KeyLControl              = VK_LCONTROL
	KeyRControl              = VK_RCONTROL
	KeyLAlt                  = VK_LMENU
	KeyLMenu                 = VK_LMENU
	KeyRAlt                  = VK_RMENU
	KeyRMenu                 = VK_RMENU
	KeyBrowserBack           = VK_BROWSER_BACK
	KeyBrowserForward        = VK_BROWSER_FORWARD
	KeyBrowserRefresh        = VK_BROWSER_REFRESH
	KeyBrowserStop           = VK_BROWSER_STOP
	KeyBrowserSearch         = VK_BROWSER_SEARCH
	KeyBrowserFavorites      = VK_BROWSER_FAVORITES
	KeyBrowserHome           = VK_BROWSER_HOME
	KeyVolumeMute            = VK_VOLUME_MUTE
	KeyVolumeDown            = VK_VOLUME_DOWN
	KeyVolumeUp              = VK_VOLUME_UP
	KeyMediaNextTrack        = VK_MEDIA_NEXT_TRACK
	KeyMediaPrevTrack        = VK_MEDIA_PREV_TRACK
	KeyMediaStop             = VK_MEDIA_STOP
	KeyMediaPlayPause        = VK_MEDIA_PLAY_PAUSE
	KeyLaunchMail            = VK_LAUNCH_MAIL
	KeyLaunchMediaSelect     = VK_LAUNCH_MEDIA_SELECT
	KeyLaunchApp1            = VK_LAUNCH_APP1
	KeyLaunchApp2            = VK_LAUNCH_APP2
	KeyOEM1                  = VK_OEM_1
	KeyOEMPlus               = VK_OEM_PLUS
	KeyOEMComma              = VK_OEM_COMMA
	KeyOEMMinus              = VK_OEM_MINUS
	KeyOEMPeriod             = VK_OEM_PERIOD
	KeyOEM2                  = VK_OEM_2
	KeyOEM3                  = VK_OEM_3
	KeyOEM4                  = VK_OEM_4
	KeyOEM5                  = VK_OEM_5
	KeyOEM6                  = VK_OEM_6
	KeyOEM7                  = VK_OEM_7
	KeyOEM8                  = VK_OEM_8
	KeyOEM102                = VK_OEM_102
	KeyProcessKey            = VK_PROCESSKEY
	KeyPacket                = VK_PACKET
	KeyAttn                  = VK_ATTN
	KeyCRSel                 = VK_CRSEL
	KeyEXSel                 = VK_EXSEL
	KeyErEOF                 = VK_EREOF
	KeyPlay                  = VK_PLAY
	KeyZoom                  = VK_ZOOM
	KeyNoName                = VK_NONAME
	KeyPA1                   = VK_PA1
	KeyOEMClear              = VK_OEM_CLEAR
)
View Source 
const (
	ModShift   Modifiers = 0x01
	ModControl           = 0x02
	ModAlt               = 0x04
)

Variables

View Source 
var (
	ErrPropertyReadOnly       error = errors.New("read-only property")
	ErrPropertyNotValidatable       = errors.New("property not validatable")
)

Functions

func AltDown 

func AltDown() bool

func AppDataPath 

func AppDataPath() (string, error)

func CommonAppDataPath 

func CommonAppDataPath() (string, error)

func ControlDown 

func ControlDown() bool

func DriveNames 

func DriveNames() ([]string, error)

func FormatFloat 

func FormatFloat(f float64, prec int) string

func FormatFloatGrouped 

func FormatFloatGrouped(f float64, prec int) string

func InitChildWidget 

func InitChildWidget(widget, parent Widget, className string, style, exStyle uint32) error

InitChildWidget initializes a child widget.

func InitWidget 

func InitWidget(widget, parent Widget, className string, style, exStyle uint32) error

InitWidget initializes a widget.

Most widgets have a parent and so are child widgets that should be initialized using InitChildWidget instead.

func InitWrapperWidget 

func InitWrapperWidget(widget Widget) error

InitWrapperWidget initializes a widget that wraps (embeds) another widget.

Calling this method is necessary, if you want to be able to override the WndProc method of the embedded widget. The embedded widget should only be used as inseparable part of the wrapper widget to avoid undefined behavior.

func LocalAppDataPath 

func LocalAppDataPath() (string, error)

func LogErrors 

func LogErrors() bool

func MsgBox 

func MsgBox(owner RootWidget, title, message string, style MsgBoxStyle) int

func MustRegisterWindowClass 

func MustRegisterWindowClass(className string)

MustRegisterWindowClass registers the specified window class.

MustRegisterWindowClass must be called once for every widget type that is not based on any system provided control, before calling InitChildWidget or InitWidget. Calling MustRegisterWindowClass twice with the same className results in a panic.

func PanicOnError 

func PanicOnError() bool

func ParseFloat 

func ParseFloat(s string) (float64, error)

func RegistryKeyString 

func RegistryKeyString(rootKey *RegistryKey, subKeyPath, valueName string) (value string, err error)

func RegistryKeyUint32 

func RegistryKeyUint32(rootKey *RegistryKey, subKeyPath, valueName string) (value uint32, err error)

func SetLogErrors 

func SetLogErrors(v bool)

func SetPanicOnError 

func SetPanicOnError(v bool)

func SetTranslationFunc 

func SetTranslationFunc(f TranslationFunction)

func ShiftDown 

func ShiftDown() bool

Types

type Action 

type Action struct {
	// contains filtered or unexported fields
}

func NewAction 

func NewAction() *Action

func NewSeparatorAction 

func NewSeparatorAction() *Action

func (*Action) Checkable 

func (a *Action) Checkable() bool

func (*Action) Checked 

func (a *Action) Checked() bool

func (*Action) Enabled 

func (a *Action) Enabled() bool

func (*Action) EnabledCondition 

func (a *Action) EnabledCondition() Condition

func (*Action) Exclusive 

func (a *Action) Exclusive() bool

func (*Action) Image 

func (a *Action) Image() *Bitmap

func (*Action) IsSeparator 

func (a *Action) IsSeparator() bool

func (*Action) SetCheckable 

func (a *Action) SetCheckable(value bool) (err error)

func (*Action) SetChecked 

func (a *Action) SetChecked(value bool) (err error)

func (*Action) SetEnabled 

func (a *Action) SetEnabled(value bool) (err error)

func (*Action) SetEnabledCondition 

func (a *Action) SetEnabledCondition(c Condition)

func (*Action) SetExclusive 

func (a *Action) SetExclusive(value bool) (err error)

func (*Action) SetImage 

func (a *Action) SetImage(value *Bitmap) (err error)

func (*Action) SetShortcut 

func (a *Action) SetShortcut(shortcut Shortcut) (err error)

func (*Action) SetText 

func (a *Action) SetText(value string) (err error)

func (*Action) SetToolTip 

func (a *Action) SetToolTip(value string) (err error)

func (*Action) SetVisible 

func (a *Action) SetVisible(value bool) (err error)

func (*Action) SetVisibleCondition 

func (a *Action) SetVisibleCondition(c Condition)

func (*Action) Shortcut 

func (a *Action) Shortcut() Shortcut

func (*Action) Text 

func (a *Action) Text() string

func (*Action) ToolTip 

func (a *Action) ToolTip() string

func (*Action) Triggered 

func (a *Action) Triggered() *Event

func (*Action) Visible 

func (a *Action) Visible() bool

func (*Action) VisibleCondition 

func (a *Action) VisibleCondition() Condition

type ActionList 

type ActionList struct {
	// contains filtered or unexported fields
}

func (*ActionList) Add 

func (l *ActionList) Add(action *Action) error

func (*ActionList) AddMenu 

func (l *ActionList) AddMenu(menu *Menu) (*Action, error)

func (*ActionList) At 

func (l *ActionList) At(index int) *Action

func (*ActionList) Clear 

func (l *ActionList) Clear() error

func (*ActionList) Contains 

func (l *ActionList) Contains(action *Action) bool

func (*ActionList) Index 

func (l *ActionList) Index(action *Action) int

func (*ActionList) Insert 

func (l *ActionList) Insert(index int, action *Action) error

func (*ActionList) InsertMenu 

func (l *ActionList) InsertMenu(index int, menu *Menu) (*Action, error)

func (*ActionList) Len 

func (l *ActionList) Len() int

func (*ActionList) Remove 

func (l *ActionList) Remove(action *Action) error

func (*ActionList) RemoveAt 

func (l *ActionList) RemoveAt(index int) error

type Alignment1D 

type Alignment1D uint
const (
	AlignNear Alignment1D = iota
	AlignCenter
	AlignFar
)

type Alignment2D 

type Alignment2D uint
const (
	AlignHNearVNear Alignment2D = iota
	AlignHCenterVNear
	AlignHFarVNear
	AlignHNearVCenter
	AlignHCenterVCenter
	AlignHFarVCenter
	AlignHNearVFar
	AlignHCenterVFar
	AlignHFarVFar
)

type Application 

type Application struct {
	// contains filtered or unexported fields
}

func App 

func App() *Application

func (*Application) Exit 

func (app *Application) Exit(exitCode int)

func (*Application) ExitCode 

func (app *Application) ExitCode() int

func (*Application) OrganizationName 

func (app *Application) OrganizationName() string

func (*Application) Panicking 

func (app *Application) Panicking() *ErrorEvent

func (*Application) ProductName 

func (app *Application) ProductName() string

func (*Application) SetOrganizationName 

func (app *Application) SetOrganizationName(value string)

func (*Application) SetProductName 

func (app *Application) SetProductName(value string)

func (*Application) SetSettings 

func (app *Application) SetSettings(value Settings)

func (*Application) Settings 

func (app *Application) Settings() Settings

type BindingValueProvider 

type BindingValueProvider interface {
	BindingValue(index int) interface{}
}

BindingValueProvider is the interface that a model must implement to support data binding with widgets like ComboBox.

type Bitmap 

type Bitmap struct {
	// contains filtered or unexported fields
}

func NewBitmap 

func NewBitmap(size Size) (bmp *Bitmap, err error)

func NewBitmapFromFile 

func NewBitmapFromFile(filePath string) (*Bitmap, error)

func NewBitmapFromImage 

func NewBitmapFromImage(im image.Image) (*Bitmap, error)

func (*Bitmap) Dispose 

func (bmp *Bitmap) Dispose()

func (*Bitmap) Size 

func (bmp *Bitmap) Size() Size

type BitmapBrush 

type BitmapBrush struct {
	// contains filtered or unexported fields
}

func NewBitmapBrush 

func NewBitmapBrush(bitmap *Bitmap) (*BitmapBrush, error)

func (*BitmapBrush) Bitmap 

func (b *BitmapBrush) Bitmap() *Bitmap

func (*BitmapBrush) Dispose 

func (b *BitmapBrush) Dispose()

type BoxLayout 

type BoxLayout struct {
	// contains filtered or unexported fields
}

func NewHBoxLayout 

func NewHBoxLayout() *BoxLayout

func NewVBoxLayout 

func NewVBoxLayout() *BoxLayout

func (*BoxLayout) Container 

func (l *BoxLayout) Container() Container

func (*BoxLayout) LayoutFlags 

func (l *BoxLayout) LayoutFlags() LayoutFlags

func (*BoxLayout) Margins 

func (l *BoxLayout) Margins() Margins

func (*BoxLayout) MinSize 

func (l *BoxLayout) MinSize() Size

func (*BoxLayout) Orientation 

func (l *BoxLayout) Orientation() Orientation

func (*BoxLayout) SetContainer 

func (l *BoxLayout) SetContainer(value Container)

func (*BoxLayout) SetMargins 

func (l *BoxLayout) SetMargins(value Margins) error

func (*BoxLayout) SetOrientation 

func (l *BoxLayout) SetOrientation(value Orientation) error

func (*BoxLayout) SetSpacing 

func (l *BoxLayout) SetSpacing(value int) error

func (*BoxLayout) SetStretchFactor 

func (l *BoxLayout) SetStretchFactor(widget Widget, factor int) error

func (*BoxLayout) Spacing 

func (l *BoxLayout) Spacing() int

func (*BoxLayout) StretchFactor 

func (l *BoxLayout) StretchFactor(widget Widget) int

func (*BoxLayout) Update 

func (l *BoxLayout) Update(reset bool) error

type Brush 

type Brush interface {
	Dispose()
	// contains filtered or unexported methods
}

func NullBrush 

func NullBrush() Brush

type Button 

type Button struct {
	WidgetBase
	// contains filtered or unexported fields
}

func (*Button) Checked 

func (b *Button) Checked() bool

func (*Button) CheckedChanged 

func (b *Button) CheckedChanged() *Event

func (*Button) Clicked 

func (b *Button) Clicked() *Event

func (*Button) SetChecked 

func (b *Button) SetChecked(checked bool)

func (*Button) SetText 

func (b *Button) SetText(value string) error

func (*Button) Text 

func (b *Button) Text() string

func (*Button) WndProc 

func (b *Button) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type CancelEvent 

type CancelEvent struct {
	// contains filtered or unexported fields
}

func (*CancelEvent) Attach 

func (e *CancelEvent) Attach(handler CancelEventHandler) int

func (*CancelEvent) Detach 

func (e *CancelEvent) Detach(handle int)

type CancelEventHandler 

type CancelEventHandler func(canceled *bool)

type CancelEventPublisher 

type CancelEventPublisher struct {
	// contains filtered or unexported fields
}

func (*CancelEventPublisher) Event 

func (p *CancelEventPublisher) Event() *CancelEvent

func (*CancelEventPublisher) Publish 

func (p *CancelEventPublisher) Publish(canceled *bool)

type Canvas 

type Canvas struct {
	// contains filtered or unexported fields
}

func NewCanvasFromImage 

func NewCanvasFromImage(image Image) (*Canvas, error)

func (*Canvas) Bounds 

func (c *Canvas) Bounds() Rectangle

func (*Canvas) Dispose 

func (c *Canvas) Dispose()

func (*Canvas) DrawEllipse 

func (c *Canvas) DrawEllipse(pen Pen, bounds Rectangle) error

func (*Canvas) DrawImage 

func (c *Canvas) DrawImage(image Image, location Point) error

func (*Canvas) DrawImageStretched 

func (c *Canvas) DrawImageStretched(image Image, bounds Rectangle) error

func (*Canvas) DrawLine 

func (c *Canvas) DrawLine(pen Pen, from, to Point) error

func (*Canvas) DrawRectangle 

func (c *Canvas) DrawRectangle(pen Pen, bounds Rectangle) error

func (*Canvas) DrawText 

func (c *Canvas) DrawText(text string, font *Font, color Color, bounds Rectangle, format DrawTextFormat) error

func (*Canvas) FillEllipse 

func (c *Canvas) FillEllipse(brush Brush, bounds Rectangle) error

func (*Canvas) FillRectangle 

func (c *Canvas) FillRectangle(brush Brush, bounds Rectangle) error

func (*Canvas) MeasureText 

func (c *Canvas) MeasureText(text string, font *Font, bounds Rectangle, format DrawTextFormat) (boundsMeasured Rectangle, runesFitted int, err error)

type CheckBox 

type CheckBox struct {
	Button
}

func NewCheckBox 

func NewCheckBox(parent Container) (*CheckBox, error)

func (*CheckBox) LayoutFlags 

func (*CheckBox) LayoutFlags() LayoutFlags

func (*CheckBox) MinSizeHint 

func (cb *CheckBox) MinSizeHint() Size

func (*CheckBox) SizeHint 

func (cb *CheckBox) SizeHint() Size

func (*CheckBox) WndProc 

func (cb *CheckBox) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type ClipboardService 

type ClipboardService struct {
	// contains filtered or unexported fields
}

ClipboardService provides access to the system clipboard.

func Clipboard 

func Clipboard() *ClipboardService

Clipboard returns an object that provides access to the system clipboard.

func (*ClipboardService) Clear 

func (c *ClipboardService) Clear() error

Clear clears the contents of the clipboard.

func (*ClipboardService) ContainsText 

func (c *ClipboardService) ContainsText() (available bool, err error)

ContainsText returns whether the clipboard currently contains text data.

func (*ClipboardService) SetText 

func (c *ClipboardService) SetText(s string) error

SetText sets the current text data of the clipboard.

func (*ClipboardService) Text 

func (c *ClipboardService) Text() (text string, err error)

Text returns the current text data of the clipboard.

type CloseEvent 

type CloseEvent struct {
	// contains filtered or unexported fields
}

func (*CloseEvent) Attach 

func (e *CloseEvent) Attach(handler CloseEventHandler) int

func (*CloseEvent) Detach 

func (e *CloseEvent) Detach(handle int)

type CloseEventHandler 

type CloseEventHandler func(canceled *bool, reason CloseReason)

type CloseEventPublisher 

type CloseEventPublisher struct {
	// contains filtered or unexported fields
}

func (*CloseEventPublisher) Event 

func (p *CloseEventPublisher) Event() *CloseEvent

func (*CloseEventPublisher) Publish 

func (p *CloseEventPublisher) Publish(canceled *bool, reason CloseReason)

type CloseReason 

type CloseReason byte
const (
	CloseReasonUnknown CloseReason = iota
	CloseReasonUser
)

type Color 

type Color uint32

func RGB 

func RGB(r, g, b byte) Color

func (Color) B 

func (c Color) B() byte

func (Color) G 

func (c Color) G() byte

func (Color) R 

func (c Color) R() byte

type ComboBox 

type ComboBox struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewComboBox 

func NewComboBox(parent Container) (*ComboBox, error)

func NewDropDownBox 

func NewDropDownBox(parent Container) (*ComboBox, error)

func (*ComboBox) BindingMember 

func (cb *ComboBox) BindingMember() string

BindingMember returns the member from the model of the ComboBox that is bound to a field of the data source managed by an associated DataBinder.

This is only applicable to walk.ReflectListModel models and simple slices of pointers to struct.

func (*ComboBox) CurrentIndex 

func (cb *ComboBox) CurrentIndex() int

func (*ComboBox) CurrentIndexChanged 

func (cb *ComboBox) CurrentIndexChanged() *Event

func (*ComboBox) DisplayMember 

func (cb *ComboBox) DisplayMember() string

DisplayMember returns the member from the model of the ComboBox that is displayed in the ComboBox.

This is only applicable to walk.ReflectListModel models and simple slices of pointers to struct.

func (*ComboBox) Editable 

func (cb *ComboBox) Editable() bool

func (*ComboBox) Format 

func (cb *ComboBox) Format() string

func (*ComboBox) LayoutFlags 

func (*ComboBox) LayoutFlags() LayoutFlags

func (*ComboBox) MinSizeHint 

func (cb *ComboBox) MinSizeHint() Size

func (*ComboBox) Model 

func (cb *ComboBox) Model() interface{}

Model returns the model of the ComboBox.

func (*ComboBox) Precision 

func (cb *ComboBox) Precision() int

func (*ComboBox) SetBindingMember 

func (cb *ComboBox) SetBindingMember(bindingMember string) error

SetBindingMember sets the member from the model of the ComboBox that is bound to a field of the data source managed by an associated DataBinder.

This is only applicable to walk.ReflectListModel models and simple slices of pointers to struct.

For a model consisting of items of type S, data source field of type T and bindingMember "Foo", this can be one of the following: 

A field		Foo T
A method	func (s S) Foo() T
A method	func (s S) Foo() (T, error)

If bindingMember is not a simple member name like "Foo", but a path to a member like "A.B.Foo", members "A" and "B" both must be one of the options mentioned above, but with T having type pointer to struct.

func (*ComboBox) SetCurrentIndex 

func (cb *ComboBox) SetCurrentIndex(value int) error

func (*ComboBox) SetDisplayMember 

func (cb *ComboBox) SetDisplayMember(displayMember string) error

SetDisplayMember sets the member from the model of the ComboBox that is displayed in the ComboBox.

This is only applicable to walk.ReflectListModel models and simple slices of pointers to struct.

For a model consisting of items of type S, the type of the specified member T and displayMember "Foo", this can be one of the following: 

A field		Foo T
A method	func (s S) Foo() T
A method	func (s S) Foo() (T, error)

If displayMember is not a simple member name like "Foo", but a path to a member like "A.B.Foo", members "A" and "B" both must be one of the options mentioned above, but with T having type pointer to struct.

func (*ComboBox) SetFormat 

func (cb *ComboBox) SetFormat(value string)

func (*ComboBox) SetModel 

func (cb *ComboBox) SetModel(mdl interface{}) error

SetModel sets the model of the ComboBox.

It is required that mdl either implements walk.ListModel or walk.ReflectListModel or be a slice of pointers to struct or a []string.

func (*ComboBox) SetPrecision 

func (cb *ComboBox) SetPrecision(value int)

func (*ComboBox) SetText 

func (cb *ComboBox) SetText(value string) error

func (*ComboBox) SetTextSelection 

func (cb *ComboBox) SetTextSelection(start, end int)

func (*ComboBox) SizeHint 

func (cb *ComboBox) SizeHint() Size

func (*ComboBox) Text 

func (cb *ComboBox) Text() string

func (*ComboBox) TextSelection 

func (cb *ComboBox) TextSelection() (start, end int)

func (*ComboBox) WndProc 

func (cb *ComboBox) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type Composite 

type Composite struct {
	ContainerBase
}

func NewComposite 

func NewComposite(parent Container) (*Composite, error)

type Condition 

type Condition interface {
	Satisfied() bool
	Changed() *Event
}

func NewAllCondition 

func NewAllCondition(items ...Condition) Condition

func NewAnyCondition 

func NewAnyCondition(items ...Condition) Condition

type Container 

type Container interface {
	Widget
	Children() *WidgetList
	Layout() Layout
	SetLayout(value Layout) error
	DataBinder() *DataBinder
	SetDataBinder(dbm *DataBinder)
}

type ContainerBase 

type ContainerBase struct {
	WidgetBase
	// contains filtered or unexported fields
}

func (*ContainerBase) Children 

func (cb *ContainerBase) Children() *WidgetList

func (*ContainerBase) DataBinder 

func (cb *ContainerBase) DataBinder() *DataBinder

func (*ContainerBase) Layout 

func (cb *ContainerBase) Layout() Layout

func (*ContainerBase) LayoutFlags 

func (cb *ContainerBase) LayoutFlags() LayoutFlags

func (*ContainerBase) MinSizeHint 

func (cb *ContainerBase) MinSizeHint() Size

func (*ContainerBase) Persistent 

func (cb *ContainerBase) Persistent() bool

func (*ContainerBase) RestoreState 

func (cb *ContainerBase) RestoreState() error

func (*ContainerBase) SaveState 

func (cb *ContainerBase) SaveState() error

func (*ContainerBase) SetDataBinder 

func (cb *ContainerBase) SetDataBinder(db *DataBinder)

func (*ContainerBase) SetEnabled 

func (cb *ContainerBase) SetEnabled(enabled bool)

func (*ContainerBase) SetFont 

func (cb *ContainerBase) SetFont(f *Font)

func (*ContainerBase) SetLayout 

func (cb *ContainerBase) SetLayout(value Layout) error

func (*ContainerBase) SetPersistent 

func (cb *ContainerBase) SetPersistent(value bool)

func (*ContainerBase) SetSuspended 

func (cb *ContainerBase) SetSuspended(suspend bool)

func (*ContainerBase) SizeHint 

func (cb *ContainerBase) SizeHint() Size

func (*ContainerBase) WndProc 

func (cb *ContainerBase) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type CosmeticPen 

type CosmeticPen struct {
	// contains filtered or unexported fields
}

func NewCosmeticPen 

func NewCosmeticPen(style PenStyle, color Color) (*CosmeticPen, error)

func (*CosmeticPen) Color 

func (p *CosmeticPen) Color() Color

func (*CosmeticPen) Dispose 

func (p *CosmeticPen) Dispose()

func (*CosmeticPen) Style 

func (p *CosmeticPen) Style() PenStyle

func (*CosmeticPen) Width 

func (p *CosmeticPen) Width() int

type Cursor 

type Cursor interface {
	Dispose()
	// contains filtered or unexported methods
}

func CursorAppStarting 

func CursorAppStarting() Cursor

func CursorArrow 

func CursorArrow() Cursor

func CursorCross 

func CursorCross() Cursor

func CursorHand 

func CursorHand() Cursor

func CursorHelp 

func CursorHelp() Cursor

func CursorIBeam 

func CursorIBeam() Cursor

func CursorIcon 

func CursorIcon() Cursor

func CursorNo 

func CursorNo() Cursor

func CursorSize 

func CursorSize() Cursor

func CursorSizeAll 

func CursorSizeAll() Cursor

func CursorSizeNESW 

func CursorSizeNESW() Cursor

func CursorSizeNS 

func CursorSizeNS() Cursor

func CursorSizeNWSE 

func CursorSizeNWSE() Cursor

func CursorSizeWE 

func CursorSizeWE() Cursor

func CursorUpArrow 

func CursorUpArrow() Cursor

func CursorWait 

func CursorWait() Cursor

func NewCursorFromImage 

func NewCursorFromImage(im image.Image, hotspot image.Point) (Cursor, error)

type CustomWidget 

type CustomWidget struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewCustomWidget 

func NewCustomWidget(parent Container, style uint, paint PaintFunc) (*CustomWidget, error)

func (*CustomWidget) ClearsBackground 

func (cw *CustomWidget) ClearsBackground() bool

func (*CustomWidget) InvalidatesOnResize 

func (cw *CustomWidget) InvalidatesOnResize() bool

func (*CustomWidget) LayoutFlags 

func (*CustomWidget) LayoutFlags() LayoutFlags

func (*CustomWidget) SetClearsBackground 

func (cw *CustomWidget) SetClearsBackground(value bool)

func (*CustomWidget) SetInvalidatesOnResize 

func (cw *CustomWidget) SetInvalidatesOnResize(value bool)

func (*CustomWidget) SizeHint 

func (cw *CustomWidget) SizeHint() Size

func (*CustomWidget) WndProc 

func (cw *CustomWidget) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type DataBinder 

type DataBinder struct {
	// contains filtered or unexported fields
}

func NewDataBinder 

func NewDataBinder() *DataBinder

func (*DataBinder) AutoSubmit 

func (db *DataBinder) AutoSubmit() bool

func (*DataBinder) BoundWidgets 

func (db *DataBinder) BoundWidgets() []Widget

func (*DataBinder) CanSubmit 

func (db *DataBinder) CanSubmit() bool

func (*DataBinder) CanSubmitChanged 

func (db *DataBinder) CanSubmitChanged() *Event

func (*DataBinder) DataSource 

func (db *DataBinder) DataSource() interface{}

func (*DataBinder) ErrorPresenter 

func (db *DataBinder) ErrorPresenter() ErrorPresenter

func (*DataBinder) Reset 

func (db *DataBinder) Reset() error

func (*DataBinder) SetAutoSubmit 

func (db *DataBinder) SetAutoSubmit(autoSubmit bool)

func (*DataBinder) SetBoundWidgets 

func (db *DataBinder) SetBoundWidgets(boundWidgets []Widget)

func (*DataBinder) SetDataSource 

func (db *DataBinder) SetDataSource(dataSource interface{}) error

func (*DataBinder) SetErrorPresenter 

func (db *DataBinder) SetErrorPresenter(ep ErrorPresenter)

func (*DataBinder) Submit 

func (db *DataBinder) Submit() error

func (*DataBinder) Submitted 

func (db *DataBinder) Submitted() *Event

type DateEdit 

type DateEdit struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewDateEdit 

func NewDateEdit(parent Container) (*DateEdit, error)

func NewDateEditWithNoneOption 

func NewDateEditWithNoneOption(parent Container) (*DateEdit, error)

func (*DateEdit) LayoutFlags 

func (*DateEdit) LayoutFlags() LayoutFlags

func (*DateEdit) MinSizeHint 

func (de *DateEdit) MinSizeHint() Size

func (*DateEdit) Range 

func (de *DateEdit) Range() (min, max time.Time)

func (*DateEdit) SetRange 

func (de *DateEdit) SetRange(min, max time.Time) error

func (*DateEdit) SetValue 

func (de *DateEdit) SetValue(value time.Time) error

func (*DateEdit) SizeHint 

func (de *DateEdit) SizeHint() Size

func (*DateEdit) Value 

func (de *DateEdit) Value() time.Time

func (*DateEdit) ValueChanged 

func (de *DateEdit) ValueChanged() *Event

func (*DateEdit) WndProc 

func (de *DateEdit) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type DelegateCondition 

type DelegateCondition struct {
	// contains filtered or unexported fields
}

func NewDelegateCondition 

func NewDelegateCondition(satisfied func() bool, changed *Event) *DelegateCondition

func (*DelegateCondition) Changed 

func (dc *DelegateCondition) Changed() *Event

func (*DelegateCondition) Satisfied 

func (dc *DelegateCondition) Satisfied() bool

type Dialog 

type Dialog struct {
	TopLevelWindow
	// contains filtered or unexported fields
}

func NewDialog 

func NewDialog(owner RootWidget) (*Dialog, error)

func (*Dialog) Accept 

func (dlg *Dialog) Accept()

func (*Dialog) Cancel 

func (dlg *Dialog) Cancel()

func (*Dialog) CancelButton 

func (dlg *Dialog) CancelButton() *PushButton

func (*Dialog) Close 

func (dlg *Dialog) Close(result int)

func (*Dialog) DefaultButton 

func (dlg *Dialog) DefaultButton() *PushButton

func (*Dialog) Result 

func (dlg *Dialog) Result() int

func (*Dialog) Run 

func (dlg *Dialog) Run() int

func (*Dialog) SetCancelButton 

func (dlg *Dialog) SetCancelButton(button *PushButton) error

func (*Dialog) SetDefaultButton 

func (dlg *Dialog) SetDefaultButton(button *PushButton) error

func (*Dialog) Show 

func (dlg *Dialog) Show()

type DrawTextFormat 

type DrawTextFormat uint

DrawText format flags 

const (
	TextTop                  DrawTextFormat = DT_TOP
	TextLeft                 DrawTextFormat = DT_LEFT
	TextCenter               DrawTextFormat = DT_CENTER
	TextRight                DrawTextFormat = DT_RIGHT
	TextVCenter              DrawTextFormat = DT_VCENTER
	TextBottom               DrawTextFormat = DT_BOTTOM
	TextWordbreak            DrawTextFormat = DT_WORDBREAK
	TextSingleLine           DrawTextFormat = DT_SINGLELINE
	TextExpandTabs           DrawTextFormat = DT_EXPANDTABS
	TextTabstop              DrawTextFormat = DT_TABSTOP
	TextNoClip               DrawTextFormat = DT_NOCLIP
	TextExternalLeading      DrawTextFormat = DT_EXTERNALLEADING
	TextCalcRect             DrawTextFormat = DT_CALCRECT
	TextNoPrefix             DrawTextFormat = DT_NOPREFIX
	TextInternal             DrawTextFormat = DT_INTERNAL
	TextEditControl          DrawTextFormat = DT_EDITCONTROL
	TextPathEllipsis         DrawTextFormat = DT_PATH_ELLIPSIS
	TextEndEllipsis          DrawTextFormat = DT_END_ELLIPSIS
	TextModifyString         DrawTextFormat = DT_MODIFYSTRING
	TextRTLReading           DrawTextFormat = DT_RTLREADING
	TextWordEllipsis         DrawTextFormat = DT_WORD_ELLIPSIS
	TextNoFullWidthCharBreak DrawTextFormat = DT_NOFULLWIDTHCHARBREAK
	TextHidePrefix           DrawTextFormat = DT_HIDEPREFIX
	TextPrefixOnly           DrawTextFormat = DT_PREFIXONLY
)

type Error 

type Error struct {
	// contains filtered or unexported fields
}

func (*Error) Error 

func (err *Error) Error() string

func (*Error) Inner 

func (err *Error) Inner() error

func (*Error) Message 

func (err *Error) Message() string

func (*Error) Stack 

func (err *Error) Stack() []byte

type ErrorEvent 

type ErrorEvent struct {
	// contains filtered or unexported fields
}

func (*ErrorEvent) Attach 

func (e *ErrorEvent) Attach(handler ErrorEventHandler) int

func (*ErrorEvent) Detach 

func (e *ErrorEvent) Detach(handle int)

type ErrorEventHandler 

type ErrorEventHandler func(err error)

type ErrorEventPublisher 

type ErrorEventPublisher struct {
	// contains filtered or unexported fields
}

func (*ErrorEventPublisher) Event 

func (p *ErrorEventPublisher) Event() *ErrorEvent

func (*ErrorEventPublisher) Publish 

func (p *ErrorEventPublisher) Publish(err error)

type ErrorPresenter 

type ErrorPresenter interface {
	PresentError(err error, widget Widget)
}

type Event 

type Event struct {
	// contains filtered or unexported fields
}

func (*Event) Attach 

func (e *Event) Attach(handler EventHandler) int

func (*Event) Detach 

func (e *Event) Detach(handle int)

type EventHandler 

type EventHandler func()

type EventPublisher 

type EventPublisher struct {
	// contains filtered or unexported fields
}

func (*EventPublisher) Event 

func (p *EventPublisher) Event() *Event

func (*EventPublisher) Publish 

func (p *EventPublisher) Publish()

type FileDialog 

type FileDialog struct {
	Title          string
	FilePath       string
	InitialDirPath string
	Filter         string
	FilterIndex    int
}

func (*FileDialog) ShowBrowseFolder 

func (dlg *FileDialog) ShowBrowseFolder(owner RootWidget) (accepted bool, err error)

func (*FileDialog) ShowOpen 

func (dlg *FileDialog) ShowOpen(owner RootWidget) (accepted bool, err error)

func (*FileDialog) ShowSave 

func (dlg *FileDialog) ShowSave(owner RootWidget) (accepted bool, err error)

type Font 

type Font struct {
	// contains filtered or unexported fields
}

Font represents a typographic typeface that is used for text drawing operations and on many GUI widgets.

func NewFont 

func NewFont(family string, pointSize int, style FontStyle) (*Font, error)

NewFont returns a new Font with the specified attributes.

func (*Font) Bold 

func (f *Font) Bold() bool

Bold returns if text drawn using the Font appears with greater weight than normal.

func (*Font) Dispose 

func (f *Font) Dispose()

Dispose releases the os resources that were allocated for the Font.

The Font can no longer be used for drawing operations or with GUI widgets after calling this method. It is safe to call Dispose multiple times.

func (*Font) Family 

func (f *Font) Family() string

Family returns the family name of the Font.

func (*Font) Italic 

func (f *Font) Italic() bool

Italic returns if text drawn using the Font appears slanted.

func (*Font) PointSize 

func (f *Font) PointSize() int

PointSize returns the size of the Font in point units.

func (*Font) StrikeOut 

func (f *Font) StrikeOut() bool

StrikeOut returns if text drawn using the Font appears striked out.

func (*Font) Style 

func (f *Font) Style() FontStyle

Style returns the combination of style flags of the Font.

func (*Font) Underline 

func (f *Font) Underline() bool

Underline returns if text drawn using the font appears underlined.

type FontStyle 

type FontStyle byte
const (
	FontBold      FontStyle = 0x01
	FontItalic    FontStyle = 0x02
	FontUnderline FontStyle = 0x04
	FontStrikeOut FontStyle = 0x08
)

Font style flags

type GeometricPen 

type GeometricPen struct {
	// contains filtered or unexported fields
}

func NewGeometricPen 

func NewGeometricPen(style PenStyle, width int, brush Brush) (*GeometricPen, error)

func (*GeometricPen) Brush 

func (p *GeometricPen) Brush() Brush

func (*GeometricPen) Dispose 

func (p *GeometricPen) Dispose()

func (*GeometricPen) Style 

func (p *GeometricPen) Style() PenStyle

func (*GeometricPen) Width 

func (p *GeometricPen) Width() int

type GridLayout 

type GridLayout struct {
	// contains filtered or unexported fields
}

func NewGridLayout 

func NewGridLayout() *GridLayout

func (*GridLayout) ColumnStretchFactor 

func (l *GridLayout) ColumnStretchFactor(column int) int

func (*GridLayout) Container 

func (l *GridLayout) Container() Container

func (*GridLayout) LayoutFlags 

func (l *GridLayout) LayoutFlags() LayoutFlags

func (*GridLayout) Margins 

func (l *GridLayout) Margins() Margins

func (*GridLayout) MinSize 

func (l *GridLayout) MinSize() Size

func (*GridLayout) Range 

func (l *GridLayout) Range(widget Widget) (r Rectangle, ok bool)

func (*GridLayout) RowStretchFactor 

func (l *GridLayout) RowStretchFactor(row int) int

func (*GridLayout) SetColumnStretchFactor 

func (l *GridLayout) SetColumnStretchFactor(column, factor int) error

func (*GridLayout) SetContainer 

func (l *GridLayout) SetContainer(value Container)

func (*GridLayout) SetMargins 

func (l *GridLayout) SetMargins(value Margins) error

func (*GridLayout) SetRange 

func (l *GridLayout) SetRange(widget Widget, r Rectangle) error

func (*GridLayout) SetRowStretchFactor 

func (l *GridLayout) SetRowStretchFactor(row, factor int) error

func (*GridLayout) SetSpacing 

func (l *GridLayout) SetSpacing(value int) error

func (*GridLayout) Spacing 

func (l *GridLayout) Spacing() int

func (*GridLayout) Update 

func (l *GridLayout) Update(reset bool) error

type GroupBox 

type GroupBox struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewGroupBox 

func NewGroupBox(parent Container) (*GroupBox, error)

func (*GroupBox) Children 

func (gb *GroupBox) Children() *WidgetList

func (*GroupBox) ClientBounds 

func (gb *GroupBox) ClientBounds() Rectangle

func (*GroupBox) DataBinder 

func (gb *GroupBox) DataBinder() *DataBinder

func (*GroupBox) Layout 

func (gb *GroupBox) Layout() Layout

func (*GroupBox) LayoutFlags 

func (gb *GroupBox) LayoutFlags() LayoutFlags

func (*GroupBox) MinSizeHint 

func (gb *GroupBox) MinSizeHint() Size

func (*GroupBox) SetDataBinder 

func (gb *GroupBox) SetDataBinder(dataBinder *DataBinder)

func (*GroupBox) SetFont 

func (gb *GroupBox) SetFont(value *Font)

func (*GroupBox) SetLayout 

func (gb *GroupBox) SetLayout(value Layout) error

func (*GroupBox) SetSuspended 

func (gb *GroupBox) SetSuspended(suspend bool)

func (*GroupBox) SetTitle 

func (gb *GroupBox) SetTitle(value string) error

func (*GroupBox) SizeHint 

func (gb *GroupBox) SizeHint() Size

func (*GroupBox) Title 

func (gb *GroupBox) Title() string

func (*GroupBox) WndProc 

func (gb *GroupBox) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type HatchBrush 

type HatchBrush struct {
	// contains filtered or unexported fields
}

func NewHatchBrush 

func NewHatchBrush(color Color, style HatchStyle) (*HatchBrush, error)

func (*HatchBrush) Color 

func (b *HatchBrush) Color() Color

func (*HatchBrush) Dispose 

func (b *HatchBrush) Dispose()

func (*HatchBrush) Style 

func (b *HatchBrush) Style() HatchStyle

type HatchStyle 

type HatchStyle int
const (
	HatchHorizontal       HatchStyle = HS_HORIZONTAL
	HatchVertical         HatchStyle = HS_VERTICAL
	HatchForwardDiagonal  HatchStyle = HS_FDIAGONAL
	HatchBackwardDiagonal HatchStyle = HS_BDIAGONAL
	HatchCross            HatchStyle = HS_CROSS
	HatchDiagonalCross    HatchStyle = HS_DIAGCROSS
)

type Icon 

type Icon struct {
	// contains filtered or unexported fields
}

Icon is a bitmap that supports transparency and combining multiple variants of an image in different resolutions.

func NewIconFromFile 

func NewIconFromFile(filePath string) (*Icon, error)

NewIconFromFile returns a new Icon, using the specified icon image file.

func NewIconFromImage 

func NewIconFromImage(im image.Image) (ic *Icon, err error)

func NewIconFromResource 

func NewIconFromResource(resName string) (ic *Icon, err error)

NewIconFromResource returns a new Icon, using the specified icon resource.

func (*Icon) Dispose 

func (i *Icon) Dispose() error

Dispose releases the operating system resources associated with the Icon.

type Image 

type Image interface {
	Dispose()
	Size() Size
	// contains filtered or unexported methods
}

func NewImageFromFile 

func NewImageFromFile(filePath string) (Image, error)

type ImageList 

type ImageList struct {
	// contains filtered or unexported fields
}

func NewImageList 

func NewImageList(imageSize Size, maskColor Color) (*ImageList, error)

func (*ImageList) Add 

func (il *ImageList) Add(bitmap, maskBitmap *Bitmap) (int, error)

func (*ImageList) AddMasked 

func (il *ImageList) AddMasked(bitmap *Bitmap) (int32, error)

func (*ImageList) Dispose 

func (il *ImageList) Dispose()

func (*ImageList) MaskColor 

func (il *ImageList) MaskColor() Color

type ImageProvider 

type ImageProvider interface {
	// Image returns the image to display for the item at index index.
	//
	// Supported types are *walk.Bitmap, *walk.Icon and string. A string will be
	// interpreted as a file path and the icon associated with the file will be
	// used. It is not supported to use strings together with the other options
	// in the same model instance.
	Image(index int) interface{}
}

ImageProvider is the interface that a model must implement to support displaying an item image.

type ImageView 

type ImageView struct {
	*CustomWidget
	// contains filtered or unexported fields
}

func NewImageView 

func NewImageView(parent Container) (*ImageView, error)

func (*ImageView) Image 

func (iv *ImageView) Image() Image

func (*ImageView) SetImage 

func (iv *ImageView) SetImage(value Image) error

type Imager 

type Imager interface {
	// Image returns the image to display for an item.
	//
	// Supported types are *walk.Bitmap, *walk.Icon and string. A string will be
	// interpreted as a file path and the icon associated with the file will be
	// used. It is not supported to use strings together with the other options
	// in the same model instance.
	Image() interface{}
}

Imager provides access to an image of objects like tree items.

type IndexList 

type IndexList struct {
	// contains filtered or unexported fields
}

func NewIndexList 

func NewIndexList(items []int) *IndexList

func (*IndexList) At 

func (l *IndexList) At(index int) int

func (*IndexList) Len 

func (l *IndexList) Len() int

type IniFileSettings 

type IniFileSettings struct {
	// contains filtered or unexported fields
}

func NewIniFileSettings 

func NewIniFileSettings(fileName string) *IniFileSettings

func (*IniFileSettings) ExpireDuration 

func (ifs *IniFileSettings) ExpireDuration() time.Duration

func (*IniFileSettings) FilePath 

func (ifs *IniFileSettings) FilePath() string

func (*IniFileSettings) Get 

func (ifs *IniFileSettings) Get(key string) (string, bool)

func (*IniFileSettings) Load 

func (ifs *IniFileSettings) Load() error

func (*IniFileSettings) Put 

func (ifs *IniFileSettings) Put(key, value string) error

func (*IniFileSettings) PutExpiring 

func (ifs *IniFileSettings) PutExpiring(key, value string) error

func (*IniFileSettings) Remove 

func (ifs *IniFileSettings) Remove(key string) error

func (*IniFileSettings) Save 

func (ifs *IniFileSettings) Save() error

func (*IniFileSettings) SetExpireDuration 

func (ifs *IniFileSettings) SetExpireDuration(expireDuration time.Duration)

func (*IniFileSettings) Timestamp 

func (ifs *IniFileSettings) Timestamp(key string) (time.Time, bool)

type IntEvent 

type IntEvent struct {
	// contains filtered or unexported fields
}

func (*IntEvent) Attach 

func (e *IntEvent) Attach(handler IntEventHandler) int

func (*IntEvent) Detach 

func (e *IntEvent) Detach(handle int)

type IntEventHandler 

type IntEventHandler func(n int)

type IntEventPublisher 

type IntEventPublisher struct {
	// contains filtered or unexported fields
}

func (*IntEventPublisher) Event 

func (p *IntEventPublisher) Event() *IntEvent

func (*IntEventPublisher) Publish 

func (p *IntEventPublisher) Publish(n int)

type ItemChecker 

type ItemChecker interface {
	// Checked returns if the specified item is checked.
	Checked(index int) bool

	// SetChecked sets if the specified item is checked.
	SetChecked(index int, checked bool) error
}

ItemChecker is the interface that a model must implement to support check boxes in a widget like TableView.

type Key 

type Key uint16

func (Key) String 

func (k Key) String() string

type KeyEvent 

type KeyEvent struct {
	// contains filtered or unexported fields
}

func (*KeyEvent) Attach 

func (e *KeyEvent) Attach(handler KeyEventHandler) int

func (*KeyEvent) Detach 

func (e *KeyEvent) Detach(handle int)

type KeyEventHandler 

type KeyEventHandler func(key Key)

type KeyEventPublisher 

type KeyEventPublisher struct {
	// contains filtered or unexported fields
}

func (*KeyEventPublisher) Event 

func (p *KeyEventPublisher) Event() *KeyEvent

func (*KeyEventPublisher) Publish 

func (p *KeyEventPublisher) Publish(key Key)

type Label 

type Label struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewLabel 

func NewLabel(parent Container) (*Label, error)

func (*Label) LayoutFlags 

func (*Label) LayoutFlags() LayoutFlags

func (*Label) MinSizeHint 

func (l *Label) MinSizeHint() Size

func (*Label) SetText 

func (l *Label) SetText(value string) error

func (*Label) SizeHint 

func (l *Label) SizeHint() Size

func (*Label) Text 

func (l *Label) Text() string

func (*Label) WndProc 

func (l *Label) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type Layout 

type Layout interface {
	Container() Container
	SetContainer(value Container)
	Margins() Margins
	SetMargins(value Margins) error
	Spacing() int
	SetSpacing(value int) error
	LayoutFlags() LayoutFlags
	MinSize() Size
	Update(reset bool) error
}

type LayoutFlags 

type LayoutFlags byte

LayoutFlags specify how a Widget wants to be treated when used with a Layout.

These flags are interpreted in respect to Widget.SizeHint. 

const (
	// ShrinkableHorz allows a Widget to be shrunk horizontally.
	ShrinkableHorz LayoutFlags = 1 << iota

	// ShrinkableVert allows a Widget to be shrunk vertically.
	ShrinkableVert

	// GrowableHorz allows a Widget to be enlarged horizontally.
	GrowableHorz

	// GrowableVert allows a Widget to be enlarged vertically.
	GrowableVert

	// GreedyHorz specifies that the widget prefers to take up as much space as
	// possible, horizontally.
	GreedyHorz

	// GreedyVert specifies that the widget prefers to take up as much space as
	// possible, vertically.
	GreedyVert
)

type LineEdit 

type LineEdit struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewLineEdit 

func NewLineEdit(parent Container) (*LineEdit, error)

func (*LineEdit) CueBanner 

func (le *LineEdit) CueBanner() string

func (*LineEdit) EditingFinished 

func (le *LineEdit) EditingFinished() *Event

func (*LineEdit) LayoutFlags 

func (le *LineEdit) LayoutFlags() (lf LayoutFlags)

func (*LineEdit) MaxLength 

func (le *LineEdit) MaxLength() int

func (*LineEdit) MinSizeHint 

func (le *LineEdit) MinSizeHint() Size

func (*LineEdit) PasswordMode 

func (le *LineEdit) PasswordMode() bool

func (*LineEdit) ReadOnly 

func (le *LineEdit) ReadOnly() bool

func (*LineEdit) SetCueBanner 

func (le *LineEdit) SetCueBanner(value string) error

func (*LineEdit) SetMaxLength 

func (le *LineEdit) SetMaxLength(value int)

func (*LineEdit) SetPasswordMode 

func (le *LineEdit) SetPasswordMode(value bool)

func (*LineEdit) SetReadOnly 

func (le *LineEdit) SetReadOnly(readOnly bool) error

func (*LineEdit) SetText 

func (le *LineEdit) SetText(value string) error

func (*LineEdit) SetTextSelection 

func (le *LineEdit) SetTextSelection(start, end int)

func (*LineEdit) SizeHint 

func (le *LineEdit) SizeHint() (size Size)

func (*LineEdit) Text 

func (le *LineEdit) Text() string

func (*LineEdit) TextChanged 

func (le *LineEdit) TextChanged() *Event

func (*LineEdit) TextSelection 

func (le *LineEdit) TextSelection() (start, end int)

func (*LineEdit) WndProc 

func (le *LineEdit) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type LineErrorPresenter 

type LineErrorPresenter struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewLineErrorPresenter 

func NewLineErrorPresenter(parent Container) (*LineErrorPresenter, error)

func (*LineErrorPresenter) LayoutFlags 

func (*LineErrorPresenter) LayoutFlags() LayoutFlags

func (*LineErrorPresenter) MinSizeHint 

func (lep *LineErrorPresenter) MinSizeHint() Size

func (*LineErrorPresenter) PresentError 

func (lep *LineErrorPresenter) PresentError(err error, widget Widget)

func (*LineErrorPresenter) SizeHint 

func (lep *LineErrorPresenter) SizeHint() Size

func (*LineErrorPresenter) WndProc 

func (lep *LineErrorPresenter) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type ListBox 

type ListBox struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewListBox 

func NewListBox(parent Container) (*ListBox, error)

func (*ListBox) CurrentIndex 

func (lb *ListBox) CurrentIndex() int

func (*ListBox) CurrentIndexChanged 

func (lb *ListBox) CurrentIndexChanged() *Event

func (*ListBox) DataMember 

func (lb *ListBox) DataMember() string

DataMember returns the member from the model of the ListBox that is displayed in the ListBox.

This is only applicable to walk.ReflectListModel models and simple slices of pointers to struct.

func (*ListBox) DblClicked 

func (lb *ListBox) DblClicked() *Event

func (*ListBox) Format 

func (lb *ListBox) Format() string

func (*ListBox) LayoutFlags 

func (*ListBox) LayoutFlags() LayoutFlags

func (*ListBox) Model 

func (lb *ListBox) Model() interface{}

Model returns the model of the ListBox.

func (*ListBox) Precision 

func (lb *ListBox) Precision() int

func (*ListBox) SetCurrentIndex 

func (lb *ListBox) SetCurrentIndex(value int) error

func (*ListBox) SetDataMember 

func (lb *ListBox) SetDataMember(dataMember string) error

SetDataMember sets the member from the model of the ListBox that is displayed in the ListBox.

This is only applicable to walk.ReflectListModel models and simple slices of pointers to struct.

For a model consisting of items of type S, the type of the specified member T and dataMember "Foo", this can be one of the following: 

A field		Foo T
A method	func (s S) Foo() T
A method	func (s S) Foo() (T, error)

If dataMember is not a simple member name like "Foo", but a path to a member like "A.B.Foo", members "A" and "B" both must be one of the options mentioned above, but with T having type pointer to struct.

func (*ListBox) SetFormat 

func (lb *ListBox) SetFormat(value string)

func (*ListBox) SetModel 

func (lb *ListBox) SetModel(mdl interface{}) error

SetModel sets the model of the ListBox.

It is required that mdl either implements walk.ListModel or walk.ReflectListModel or be a slice of pointers to struct or a []string.

func (*ListBox) SetPrecision 

func (lb *ListBox) SetPrecision(value int)

func (*ListBox) SizeHint 

func (lb *ListBox) SizeHint() Size

func (*ListBox) WndProc 

func (lb *ListBox) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type ListModel 

type ListModel interface {
	// ItemCount returns the number of items in the model.
	ItemCount() int

	// Value returns the value that should be displayed for the given index.
	Value(index int) interface{}

	// ItemsReset returns the event that the model should publish when the
	// number of its items changes.
	ItemsReset() *Event

	// ItemChanged returns the event that the model should publish when an item
	// was changed.
	ItemChanged() *IntEvent
}

ListModel is the interface that a model must implement to support widgets like ComboBox.

type ListModelBase 

type ListModelBase struct {
	// contains filtered or unexported fields
}

ListModelBase implements the ItemsReset and ItemChanged methods of the ListModel interface.

func (*ListModelBase) ItemChanged 

func (lmb *ListModelBase) ItemChanged() *IntEvent

func (*ListModelBase) ItemsReset 

func (lmb *ListModelBase) ItemsReset() *Event

func (*ListModelBase) PublishItemChanged 

func (lmb *ListModelBase) PublishItemChanged(index int)

func (*ListModelBase) PublishItemsReset 

func (lmb *ListModelBase) PublishItemsReset()

type MainWindow 

type MainWindow struct {
	TopLevelWindow
	// contains filtered or unexported fields
}

func NewMainWindow 

func NewMainWindow() (*MainWindow, error)

func (*MainWindow) Children 

func (mw *MainWindow) Children() *WidgetList

func (*MainWindow) ClientBounds 

func (mw *MainWindow) ClientBounds() Rectangle

func (*MainWindow) ContextMenu 

func (mw *MainWindow) ContextMenu() *Menu

func (*MainWindow) Fullscreen 

func (mw *MainWindow) Fullscreen() bool

func (*MainWindow) Layout 

func (mw *MainWindow) Layout() Layout

func (*MainWindow) Menu 

func (mw *MainWindow) Menu() *Menu

func (*MainWindow) RestoreState 

func (mw *MainWindow) RestoreState() error

func (*MainWindow) SaveState 

func (mw *MainWindow) SaveState() error

func (*MainWindow) SetContextMenu 

func (mw *MainWindow) SetContextMenu(contextMenu *Menu)

func (*MainWindow) SetFullscreen 

func (mw *MainWindow) SetFullscreen(fullscreen bool) error

func (*MainWindow) SetLayout 

func (mw *MainWindow) SetLayout(value Layout) error

func (*MainWindow) SetVisible 

func (mw *MainWindow) SetVisible(visible bool)

func (*MainWindow) ToolBar 

func (mw *MainWindow) ToolBar() *ToolBar

func (*MainWindow) WndProc 

func (mw *MainWindow) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type Margins 

type Margins struct {
	HNear, VNear, HFar, VFar int
}
type Menu struct {
	// contains filtered or unexported fields
}

func NewMenu 

func NewMenu() (*Menu, error)
func (m *Menu) Actions() *ActionList
func (m *Menu) Dispose()
func (m *Menu) IsDisposed() bool

type Metafile 

type Metafile struct {
	// contains filtered or unexported fields
}

func NewMetafile 

func NewMetafile(referenceCanvas *Canvas) (*Metafile, error)

func NewMetafileFromFile 

func NewMetafileFromFile(filePath string) (*Metafile, error)

func (*Metafile) Dispose 

func (mf *Metafile) Dispose()

func (*Metafile) Save 

func (mf *Metafile) Save(filePath string) error

func (*Metafile) Size 

func (mf *Metafile) Size() Size

type Modifiers 

type Modifiers byte

func ModifiersDown 

func ModifiersDown() Modifiers

func (Modifiers) String 

func (m Modifiers) String() string

type MouseButton 

type MouseButton int
const (
	LeftButton MouseButton = iota
	RightButton
	MiddleButton
)

type MouseEvent 

type MouseEvent struct {
	// contains filtered or unexported fields
}

func (*MouseEvent) Attach 

func (e *MouseEvent) Attach(handler MouseEventHandler) int

func (*MouseEvent) Detach 

func (e *MouseEvent) Detach(handle int)

type MouseEventHandler 

type MouseEventHandler func(x, y int, button MouseButton)

type MouseEventPublisher 

type MouseEventPublisher struct {
	// contains filtered or unexported fields
}

func (*MouseEventPublisher) Event 

func (p *MouseEventPublisher) Event() *MouseEvent

func (*MouseEventPublisher) Publish 

func (p *MouseEventPublisher) Publish(x, y int, button MouseButton)

type MsgBoxStyle 

type MsgBoxStyle uint
const (
	MsgBoxOK                MsgBoxStyle = MB_OK
	MsgBoxOKCancel          MsgBoxStyle = MB_OKCANCEL
	MsgBoxAbortRetryIgnore  MsgBoxStyle = MB_ABORTRETRYIGNORE
	MsgBoxYesNoCancel       MsgBoxStyle = MB_YESNOCANCEL
	MsgBoxYesNo             MsgBoxStyle = MB_YESNO
	MsgBoxRetryCancel       MsgBoxStyle = MB_RETRYCANCEL
	MsgBoxCancelTryContinue MsgBoxStyle = MB_CANCELTRYCONTINUE
	MsgBoxIconHand          MsgBoxStyle = MB_ICONHAND
	MsgBoxIconQuestion      MsgBoxStyle = MB_ICONQUESTION
	MsgBoxIconExclamation   MsgBoxStyle = MB_ICONEXCLAMATION
	MsgBoxIconAsterisk      MsgBoxStyle = MB_ICONASTERISK
	MsgBoxUserIcon          MsgBoxStyle = MB_USERICON
	MsgBoxIconWarning       MsgBoxStyle = MB_ICONWARNING
	MsgBoxIconError         MsgBoxStyle = MB_ICONERROR
	MsgBoxIconInformation   MsgBoxStyle = MB_ICONINFORMATION
	MsgBoxIconStop          MsgBoxStyle = MB_ICONSTOP
	MsgBoxDefButton1        MsgBoxStyle = MB_DEFBUTTON1
	MsgBoxDefButton2        MsgBoxStyle = MB_DEFBUTTON2
	MsgBoxDefButton3        MsgBoxStyle = MB_DEFBUTTON3
	MsgBoxDefButton4        MsgBoxStyle = MB_DEFBUTTON4
)

type MutableCondition 

type MutableCondition struct {
	// contains filtered or unexported fields
}

func NewMutableCondition 

func NewMutableCondition() *MutableCondition

func (*MutableCondition) Changed 

func (mc *MutableCondition) Changed() *Event

func (*MutableCondition) Satisfied 

func (mc *MutableCondition) Satisfied() bool

func (*MutableCondition) SetSatisfied 

func (mc *MutableCondition) SetSatisfied(satisfied bool) error

type NotifyIcon 

type NotifyIcon struct {
	// contains filtered or unexported fields
}

NotifyIcon represents an icon in the taskbar notification area.

func NewNotifyIcon 

func NewNotifyIcon() (*NotifyIcon, error)

NewNotifyIcon creates and returns a new NotifyIcon.

The NotifyIcon is initially not visible.

func (*NotifyIcon) ContextMenu 

func (ni *NotifyIcon) ContextMenu() *Menu

ContextMenu returns the context menu of the NotifyIcon.

func (*NotifyIcon) Dispose 

func (ni *NotifyIcon) Dispose() error

Dispose releases the operating system resources associated with the NotifyIcon.

The associated Icon is not disposed of.

func (*NotifyIcon) Icon 

func (ni *NotifyIcon) Icon() *Icon

Icon returns the Icon of the NotifyIcon.

func (*NotifyIcon) MouseDown 

func (ni *NotifyIcon) MouseDown() *MouseEvent

MouseDown returns the event that is published when a mouse button is pressed while the cursor is over the NotifyIcon.

func (*NotifyIcon) MouseUp 

func (ni *NotifyIcon) MouseUp() *MouseEvent

MouseDown returns the event that is published when a mouse button is released while the cursor is over the NotifyIcon.

func (*NotifyIcon) SetIcon 

func (ni *NotifyIcon) SetIcon(icon *Icon) error

SetIcon sets the Icon of the NotifyIcon.

func (*NotifyIcon) SetToolTip 

func (ni *NotifyIcon) SetToolTip(toolTip string) error

SetToolTip sets the tool tip text of the NotifyIcon.

func (*NotifyIcon) SetVisible 

func (ni *NotifyIcon) SetVisible(visible bool) error

SetVisible sets if the NotifyIcon is visible.

func (*NotifyIcon) ShowCustom 

func (ni *NotifyIcon) ShowCustom(title, info string) error

ShowCustom displays a custom icon message balloon above the NotifyIcon.

The NotifyIcon must be visible before calling this method.

func (*NotifyIcon) ShowError 

func (ni *NotifyIcon) ShowError(title, info string) error

ShowError displays an error message balloon above the NotifyIcon.

The NotifyIcon must be visible before calling this method.

func (*NotifyIcon) ShowInfo 

func (ni *NotifyIcon) ShowInfo(title, info string) error

ShowInfo displays an info message balloon above the NotifyIcon.

The NotifyIcon must be visible before calling this method.

func (*NotifyIcon) ShowMessage 

func (ni *NotifyIcon) ShowMessage(title, info string) error

ShowMessage displays a neutral message balloon above the NotifyIcon.

The NotifyIcon must be visible before calling this method.

func (*NotifyIcon) ShowWarning 

func (ni *NotifyIcon) ShowWarning(title, info string) error

ShowWarning displays a warning message balloon above the NotifyIcon.

The NotifyIcon must be visible before calling this method.

func (*NotifyIcon) ToolTip 

func (ni *NotifyIcon) ToolTip() string

ToolTip returns the tool tip text of the NotifyIcon.

func (*NotifyIcon) Visible 

func (ni *NotifyIcon) Visible() bool

Visible returns if the NotifyIcon is visible.

type NumberEdit 

type NumberEdit struct {
	WidgetBase
	// contains filtered or unexported fields
}

NumberEdit is a widget that is suited to edit numeric values.

func NewNumberEdit 

func NewNumberEdit(parent Container) (*NumberEdit, error)

NewNumberEdit returns a new NumberEdit widget as child of parent.

func (*NumberEdit) Decimals 

func (ne *NumberEdit) Decimals() int

Decimals returns the number of decimal places in the NumberEdit.

func (*NumberEdit) Enabled 

func (ne *NumberEdit) Enabled() bool

Enabled returns whether the NumberEdit is enabled.

func (*NumberEdit) Font 

func (ne *NumberEdit) Font() *Font

Font returns the Font of the NumberEdit.

func (*NumberEdit) Increment 

func (ne *NumberEdit) Increment() float64

Increment returns the amount by which the NumberEdit increments or decrements its value, when the user presses the KeyDown or KeyUp keys, or when the mouse wheel is rotated.

func (*NumberEdit) LayoutFlags 

func (*NumberEdit) LayoutFlags() LayoutFlags

LayoutFlags returns information that is mainly interesting to Layout implementations.

func (*NumberEdit) MaxValue 

func (ne *NumberEdit) MaxValue() float64

MinValue returns the maximum value the NumberEdit will accept.

func (*NumberEdit) MinSizeHint 

func (ne *NumberEdit) MinSizeHint() Size

MinSizeHint returns information that is mainly interesting to Layout implementations.

func (*NumberEdit) MinValue 

func (ne *NumberEdit) MinValue() float64

MinValue returns the minimum value the NumberEdit will accept.

func (*NumberEdit) Prefix 

func (ne *NumberEdit) Prefix() string

Prefix returns the text that appears in the NumberEdit before the number.

func (*NumberEdit) SetDecimals 

func (ne *NumberEdit) SetDecimals(decimals int) error

SetDecimals sets the number of decimal places in the NumberEdit.

func (*NumberEdit) SetEnabled 

func (ne *NumberEdit) SetEnabled(value bool)

SetEnabled sets whether the NumberEdit is enabled.

func (*NumberEdit) SetFocus 

func (ne *NumberEdit) SetFocus() error

SetFocus sets the keyboard input focus to the NumberEdit.

func (*NumberEdit) SetFont 

func (ne *NumberEdit) SetFont(value *Font)

SetFont sets the Font of the NumberEdit.

func (*NumberEdit) SetIncrement 

func (ne *NumberEdit) SetIncrement(increment float64) error

SetIncrement sets the amount by which the NumberEdit increments or decrements its value, when the user presses the KeyDown or KeyUp keys, or when the mouse wheel is rotated.

func (*NumberEdit) SetPrefix 

func (ne *NumberEdit) SetPrefix(prefix string) error

SetPrefix sets the text that appears in the NumberEdit before the number.

func (*NumberEdit) SetRange 

func (ne *NumberEdit) SetRange(min, max float64) error

SetRange sets the minimum and maximum values the NumberEdit will accept.

If the current value is out of this range, it will be adjusted.

func (*NumberEdit) SetSuffix 

func (ne *NumberEdit) SetSuffix(suffix string) error

SetSuffix sets the text that appears in the NumberEdit after the number.

func (*NumberEdit) SetTextSelection 

func (ne *NumberEdit) SetTextSelection(start, end int)

SetTextSelection sets the range of the current text selection of the NumberEdit.

func (*NumberEdit) SetValue 

func (ne *NumberEdit) SetValue(value float64) error

SetValue sets the value of the NumberEdit.

func (*NumberEdit) SizeHint 

func (ne *NumberEdit) SizeHint() Size

SizeHint returns information that is mainly interesting to Layout implementations.

func (*NumberEdit) Suffix 

func (ne *NumberEdit) Suffix() string

Suffix returns the text that appears in the NumberEdit after the number.

func (*NumberEdit) TextSelection 

func (ne *NumberEdit) TextSelection() (start, end int)

TextSelection returns the range of the current text selection of the NumberEdit.

func (*NumberEdit) Value 

func (ne *NumberEdit) Value() float64

Value returns the value of the NumberEdit.

func (*NumberEdit) ValueChanged 

func (ne *NumberEdit) ValueChanged() *Event

ValueChanged returns an Event that can be used to track changes to Value.

func (*NumberEdit) WndProc 

func (ne *NumberEdit) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

WndProc is the window procedure of the NumberEdit.

When implementing your own WndProc to add or modify behavior, call the WndProc of the embedded NumberEdit for messages you don't handle yourself.

type Orientation 

type Orientation byte
const (
	Horizontal Orientation = iota
	Vertical
)

type PIState 

type PIState int
const (
	PINoProgress    PIState = TBPF_NOPROGRESS
	PIIndeterminate PIState = TBPF_INDETERMINATE
	PINormal        PIState = TBPF_NORMAL
	PIError         PIState = TBPF_ERROR
	PIPaused        PIState = TBPF_PAUSED
)

type PaintFunc 

type PaintFunc func(canvas *Canvas, updateBounds Rectangle) error

type Pen 

type Pen interface {
	Dispose()
	Style() PenStyle
	Width() int
	// contains filtered or unexported methods
}

func NullPen 

func NullPen() Pen

type PenStyle 

type PenStyle int
const (
	PenSolid       PenStyle = PS_SOLID
	PenDash        PenStyle = PS_DASH
	PenDot         PenStyle = PS_DOT
	PenDashDot     PenStyle = PS_DASHDOT
	PenDashDotDot  PenStyle = PS_DASHDOTDOT
	PenNull        PenStyle = PS_NULL
	PenInsideFrame PenStyle = PS_INSIDEFRAME
	PenUserStyle   PenStyle = PS_USERSTYLE
	PenAlternate   PenStyle = PS_ALTERNATE
)

Pen styles 

const (
	PenCapRound  PenStyle = PS_ENDCAP_ROUND
	PenCapSquare PenStyle = PS_ENDCAP_SQUARE
	PenCapFlat   PenStyle = PS_ENDCAP_FLAT
)

Pen cap styles (geometric pens only) 

const (
	PenJoinBevel PenStyle = PS_JOIN_BEVEL
	PenJoinMiter PenStyle = PS_JOIN_MITER
	PenJoinRound PenStyle = PS_JOIN_ROUND
)

Pen join styles (geometric pens only)

type Persistable 

type Persistable interface {
	Persistent() bool
	SetPersistent(value bool)
	SaveState() error
	RestoreState() error
}

type Point 

type Point struct {
	X, Y int
}

type Populator 

type Populator interface {
	// Populate initializes the slot specified by index.
	//
	// For best performance it is probably a good idea to populate more than a
	// single slot of the slice at once.
	Populate(index int) error
}

Populator is an interface that can be implemented by Reflect*Models and slice types to populate themselves on demand.

Widgets like TableView, ListBox and ComboBox support lazy population of a Reflect*Model or slice, if it implements this interface.

type ProgressBar 

type ProgressBar struct {
	WidgetBase
}

func NewProgressBar 

func NewProgressBar(parent Container) (*ProgressBar, error)

func (*ProgressBar) LayoutFlags 

func (*ProgressBar) LayoutFlags() LayoutFlags

func (*ProgressBar) MaxValue 

func (pb *ProgressBar) MaxValue() int

func (*ProgressBar) MinSizeHint 

func (pb *ProgressBar) MinSizeHint() Size

func (*ProgressBar) MinValue 

func (pb *ProgressBar) MinValue() int

func (*ProgressBar) SetRange 

func (pb *ProgressBar) SetRange(min, max int)

func (*ProgressBar) SetValue 

func (pb *ProgressBar) SetValue(value int)

func (*ProgressBar) SizeHint 

func (pb *ProgressBar) SizeHint() Size

func (*ProgressBar) Value 

func (pb *ProgressBar) Value() int

type ProgressIndicator 

type ProgressIndicator struct {
	// contains filtered or unexported fields
}

func (*ProgressIndicator) Completed 

func (pi *ProgressIndicator) Completed() uint32

func (*ProgressIndicator) SetCompleted 

func (pi *ProgressIndicator) SetCompleted(completed uint32) error

func (*ProgressIndicator) SetState 

func (pi *ProgressIndicator) SetState(state PIState) error

func (*ProgressIndicator) SetTotal 

func (pi *ProgressIndicator) SetTotal(total uint32)

func (*ProgressIndicator) State 

func (pi *ProgressIndicator) State() PIState

func (*ProgressIndicator) Total 

func (pi *ProgressIndicator) Total() uint32

type Property 

type Property interface {
	ReadOnly() bool
	Get() interface{}
	Set(value interface{}) error
	Changed() *Event
	Source() interface{}
	SetSource(source interface{}) error
	Validatable() bool
	Validator() Validator
	SetValidator(validator Validator) error
}

func NewBoolProperty 

func NewBoolProperty(get func() bool, set func(b bool) error, changed *Event) Property

func NewProperty 

func NewProperty(get func() interface{}, set func(v interface{}) error, changed *Event) Property

func NewReadOnlyBoolProperty 

func NewReadOnlyBoolProperty(get func() bool, changed *Event) Property

func NewReadOnlyProperty 

func NewReadOnlyProperty(get func() interface{}, changed *Event) Property

type PushButton 

type PushButton struct {
	Button
}

func NewPushButton 

func NewPushButton(parent Container) (*PushButton, error)

func (*PushButton) LayoutFlags 

func (*PushButton) LayoutFlags() LayoutFlags

func (*PushButton) MinSizeHint 

func (pb *PushButton) MinSizeHint() Size

func (*PushButton) SizeHint 

func (pb *PushButton) SizeHint() Size

func (*PushButton) WndProc 

func (pb *PushButton) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type RadioButton 

type RadioButton struct {
	Button
	// contains filtered or unexported fields
}

func NewRadioButton 

func NewRadioButton(parent Container) (*RadioButton, error)

func (*RadioButton) Group 

func (rb *RadioButton) Group() *RadioButtonGroup

func (*RadioButton) LayoutFlags 

func (*RadioButton) LayoutFlags() LayoutFlags

func (*RadioButton) MinSizeHint 

func (rb *RadioButton) MinSizeHint() Size

func (*RadioButton) SetValue 

func (rb *RadioButton) SetValue(value interface{})

func (*RadioButton) SizeHint 

func (rb *RadioButton) SizeHint() Size

func (*RadioButton) Value 

func (rb *RadioButton) Value() interface{}

func (*RadioButton) WndProc 

func (rb *RadioButton) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type RadioButtonGroup 

type RadioButtonGroup struct {
	// contains filtered or unexported fields
}

func (*RadioButtonGroup) Buttons 

func (rbg *RadioButtonGroup) Buttons() []*RadioButton

func (*RadioButtonGroup) CheckedButton 

func (rbg *RadioButtonGroup) CheckedButton() *RadioButton

type RangeValidator 

type RangeValidator struct {
	// contains filtered or unexported fields
}

func NewRangeValidator 

func NewRangeValidator(min, max float64) (*RangeValidator, error)

func (*RangeValidator) Max 

func (rv *RangeValidator) Max() float64

func (*RangeValidator) Min 

func (rv *RangeValidator) Min() float64

func (*RangeValidator) Validate 

func (rv *RangeValidator) Validate(v interface{}) error

type Rectangle 

type Rectangle struct {
	X, Y, Width, Height int
}

func (Rectangle) Bottom 

func (r Rectangle) Bottom() int

func (Rectangle) Left 

func (r Rectangle) Left() int

func (Rectangle) Location 

func (r Rectangle) Location() Point

func (Rectangle) Right 

func (r Rectangle) Right() int

func (*Rectangle) SetLocation 

func (r *Rectangle) SetLocation(p Point) Rectangle

func (*Rectangle) SetSize 

func (r *Rectangle) SetSize(s Size) Rectangle

func (Rectangle) Size 

func (r Rectangle) Size() Size

func (Rectangle) Top 

func (r Rectangle) Top() int

type ReflectListModel 

type ReflectListModel interface {
	// Items returns the model data, which must be a slice of pointer to struct.
	Items() interface{}

	// ItemsReset returns the event that the model should publish when the
	// number of its items changes.
	ItemsReset() *Event

	// ItemChanged returns the event that the model should publish when an item
	// was changed.
	ItemChanged() *IntEvent
	// contains filtered or unexported methods
}

ReflectListModel provides an alternative to the ListModel interface. It uses reflection to obtain data.

type ReflectListModelBase 

type ReflectListModelBase struct {
	ListModelBase
	// contains filtered or unexported fields
}

ReflectListModelBase implements the ItemsReset and ItemChanged methods of the ReflectListModel interface.

func (*ReflectListModelBase) Value 

func (rlmb *ReflectListModelBase) Value(index int) interface{}

type ReflectTableModel 

type ReflectTableModel interface {
	// Items returns the model data, which must be a slice of pointer to struct.
	Items() interface{}

	// RowsReset returns the event that the model should publish when the
	// number of its items changes.
	RowsReset() *Event

	// RowChanged returns the event that the model should publish when an item
	// was changed.
	RowChanged() *IntEvent
	// contains filtered or unexported methods
}

ReflectTableModel provides an alternative to the TableModel interface. It uses reflection to obtain data.

type ReflectTableModelBase 

type ReflectTableModelBase struct {
	TableModelBase
	// contains filtered or unexported fields
}

ReflectTableModelBase implements the ItemsReset and ItemChanged methods of the ReflectTableModel interface.

func (*ReflectTableModelBase) Value 

func (rtmb *ReflectTableModelBase) Value(row, col int) interface{}

type RegexpValidator 

type RegexpValidator struct {
	// contains filtered or unexported fields
}

func NewRegexpValidator 

func NewRegexpValidator(pattern string) (*RegexpValidator, error)

func (*RegexpValidator) Pattern 

func (rv *RegexpValidator) Pattern() string

func (*RegexpValidator) Validate 

func (rv *RegexpValidator) Validate(v interface{}) error

type RegistryKey 

type RegistryKey struct {
	// contains filtered or unexported fields
}

func ClassesRootKey 

func ClassesRootKey() *RegistryKey

func CurrentUserKey 

func CurrentUserKey() *RegistryKey

func LocalMachineKey 

func LocalMachineKey() *RegistryKey

type RootWidget 

type RootWidget interface {
	Container
	Run() int
}

type Settings 

type Settings interface {
	Get(key string) (string, bool)
	Timestamp(key string) (time.Time, bool)
	Put(key, value string) error
	PutExpiring(key, value string) error
	Remove(key string) error
	ExpireDuration() time.Duration
	SetExpireDuration(expireDuration time.Duration)
	Load() error
	Save() error
}

type Shortcut 

type Shortcut struct {
	Modifiers Modifiers
	Key       Key
}

func (Shortcut) String 

func (s Shortcut) String() string

type Size 

type Size struct {
	Width, Height int
}

type SolidColorBrush 

type SolidColorBrush struct {
	// contains filtered or unexported fields
}

func NewSolidColorBrush 

func NewSolidColorBrush(color Color) (*SolidColorBrush, error)

func (*SolidColorBrush) Color 

func (b *SolidColorBrush) Color() Color

func (*SolidColorBrush) Dispose 

func (b *SolidColorBrush) Dispose()

type SortOrder 

type SortOrder int

SortOrder specifies the order by which items are sorted. 

const (
	// SortAscending specifies ascending sort order.
	SortAscending SortOrder = iota

	// SortDescending specifies descending sort order.
	SortDescending
)

type SortedReflectTableModelBase 

type SortedReflectTableModelBase struct {
	ReflectTableModelBase
	SorterBase
	// contains filtered or unexported fields
}

SortedReflectTableModelBase implements the RowsReset and RowChanged methods of the ReflectTableModel interface as well as the Sorter interface for pre-implemented in-memory sorting.

func (*SortedReflectTableModelBase) Sort 

func (srtmb *SortedReflectTableModelBase) Sort(col int, order SortOrder) error

type Sorter 

type Sorter interface {
	// ColumnSortable returns whether column col is sortable.
	ColumnSortable(col int) bool

	// Sort sorts column col in order order.
	//
	// If col is -1 then no column is to be sorted. Sort must publish the event
	// returned from SortChanged() after sorting.
	Sort(col int, order SortOrder) error

	// SortChanged returns an event that is published after sorting.
	SortChanged() *Event

	// SortedColumn returns the index of the currently sorted column, or -1 if
	// no column is currently sorted.
	SortedColumn() int

	// SortOrder returns the current sort order.
	SortOrder() SortOrder
}

Sorter is the interface that a model must implement to support sorting with a widget like TableView.

type SorterBase 

type SorterBase struct {
	// contains filtered or unexported fields
}

SorterBase implements the Sorter interface.

You still need to provide your own implementation of at least the Sort method to actually sort and reset the model. Your Sort method should call the SorterBase implementation so the SortChanged event, that e.g. a TableView widget depends on, is published.

func (*SorterBase) ColumnSortable 

func (sb *SorterBase) ColumnSortable(col int) bool

func (*SorterBase) Sort 

func (sb *SorterBase) Sort(col int, order SortOrder) error

func (*SorterBase) SortChanged 

func (sb *SorterBase) SortChanged() *Event

func (*SorterBase) SortOrder 

func (sb *SorterBase) SortOrder() SortOrder

func (*SorterBase) SortedColumn 

func (sb *SorterBase) SortedColumn() int

type Spacer 

type Spacer struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewHSpacer 

func NewHSpacer(parent Container) (*Spacer, error)

func NewHSpacerFixed 

func NewHSpacerFixed(parent Container, width int) (*Spacer, error)

func NewVSpacer 

func NewVSpacer(parent Container) (*Spacer, error)

func NewVSpacerFixed 

func NewVSpacerFixed(parent Container, height int) (*Spacer, error)

func (*Spacer) LayoutFlags 

func (s *Spacer) LayoutFlags() LayoutFlags

func (*Spacer) SizeHint 

func (s *Spacer) SizeHint() Size

type Splitter 

type Splitter struct {
	ContainerBase
	// contains filtered or unexported fields
}

func NewHSplitter 

func NewHSplitter(parent Container) (*Splitter, error)

func NewVSplitter 

func NewVSplitter(parent Container) (*Splitter, error)

func (*Splitter) HandleWidth 

func (s *Splitter) HandleWidth() int

func (*Splitter) LayoutFlags 

func (s *Splitter) LayoutFlags() LayoutFlags

func (*Splitter) Orientation 

func (s *Splitter) Orientation() Orientation

func (*Splitter) Persistent 

func (s *Splitter) Persistent() bool

func (*Splitter) RestoreState 

func (s *Splitter) RestoreState() error

func (*Splitter) SaveState 

func (s *Splitter) SaveState() error

func (*Splitter) SetHandleWidth 

func (s *Splitter) SetHandleWidth(value int) error

func (*Splitter) SetLayout 

func (s *Splitter) SetLayout(value Layout) error

func (*Splitter) SetPersistent 

func (s *Splitter) SetPersistent(value bool)

func (*Splitter) SizeHint 

func (s *Splitter) SizeHint() Size

type SystemColorBrush 

type SystemColorBrush struct {
	// contains filtered or unexported fields
}

func NewSystemColorBrush 

func NewSystemColorBrush(colorIndex int) (*SystemColorBrush, error)

func (*SystemColorBrush) ColorIndex 

func (b *SystemColorBrush) ColorIndex() int

func (*SystemColorBrush) Dispose 

func (b *SystemColorBrush) Dispose()

type TabPage 

type TabPage struct {
	ContainerBase
	// contains filtered or unexported fields
}

func NewTabPage 

func NewTabPage() (*TabPage, error)

func (*TabPage) Enabled 

func (tp *TabPage) Enabled() bool

func (*TabPage) Font 

func (tp *TabPage) Font() *Font

func (*TabPage) SetTitle 

func (tp *TabPage) SetTitle(value string) error

func (*TabPage) Title 

func (tp *TabPage) Title() string

type TabPageList 

type TabPageList struct {
	// contains filtered or unexported fields
}

func (*TabPageList) Add 

func (l *TabPageList) Add(item *TabPage) error

func (*TabPageList) At 

func (l *TabPageList) At(index int) *TabPage

func (*TabPageList) Clear 

func (l *TabPageList) Clear() error

func (*TabPageList) Contains 

func (l *TabPageList) Contains(item *TabPage) bool

func (*TabPageList) Index 

func (l *TabPageList) Index(item *TabPage) int

func (*TabPageList) Insert 

func (l *TabPageList) Insert(index int, item *TabPage) error

func (*TabPageList) Len 

func (l *TabPageList) Len() int

func (*TabPageList) Remove 

func (l *TabPageList) Remove(item *TabPage) error

func (*TabPageList) RemoveAt 

func (l *TabPageList) RemoveAt(index int) error

type TabWidget 

type TabWidget struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewTabWidget 

func NewTabWidget(parent Container) (*TabWidget, error)

func (*TabWidget) CurrentIndex 

func (tw *TabWidget) CurrentIndex() int

func (*TabWidget) CurrentIndexChanged 

func (tw *TabWidget) CurrentIndexChanged() *Event

func (*TabWidget) LayoutFlags 

func (tw *TabWidget) LayoutFlags() LayoutFlags

func (*TabWidget) MinSizeHint 

func (tw *TabWidget) MinSizeHint() Size

func (*TabWidget) Pages 

func (tw *TabWidget) Pages() *TabPageList

func (*TabWidget) Persistent 

func (tw *TabWidget) Persistent() bool

func (*TabWidget) RestoreState 

func (tw *TabWidget) RestoreState() error

func (*TabWidget) SaveState 

func (tw *TabWidget) SaveState() error

func (*TabWidget) SetCurrentIndex 

func (tw *TabWidget) SetCurrentIndex(index int) error

func (*TabWidget) SetEnabled 

func (tw *TabWidget) SetEnabled(enabled bool)

func (*TabWidget) SetFont 

func (tw *TabWidget) SetFont(f *Font)

func (*TabWidget) SetPersistent 

func (tw *TabWidget) SetPersistent(value bool)

func (*TabWidget) SizeHint 

func (tw *TabWidget) SizeHint() Size

func (*TabWidget) WndProc 

func (tw *TabWidget) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type TableModel 

type TableModel interface {
	// RowCount returns the number of rows in the model.
	RowCount() int

	// Value returns the value that should be displayed for the given cell.
	Value(row, col int) interface{}

	// RowsReset returns the event that the model should publish when the number
	// of its rows changes.
	RowsReset() *Event

	// RowChanged returns the event that the model should publish when a row was
	// changed.
	RowChanged() *IntEvent
}

TableModel is the interface that a model must implement to support widgets like TableView.

type TableModelBase 

type TableModelBase struct {
	// contains filtered or unexported fields
}

TableModelBase implements the RowsReset and RowChanged methods of the TableModel interface.

func (*TableModelBase) PublishRowChanged 

func (tmb *TableModelBase) PublishRowChanged(row int)

func (*TableModelBase) PublishRowsReset 

func (tmb *TableModelBase) PublishRowsReset()

func (*TableModelBase) RowChanged 

func (tmb *TableModelBase) RowChanged() *IntEvent

func (*TableModelBase) RowsReset 

func (tmb *TableModelBase) RowsReset() *Event

type TableView 

type TableView struct {
	WidgetBase
	// contains filtered or unexported fields
}

TableView is a model based widget for record centric, tabular data.

TableView is implemented as a virtual mode list view to support quite large amounts of data.

func NewTableView 

func NewTableView(parent Container) (*TableView, error)

NewTableView creates and returns a *TableView as child of the specified Container.

func (*TableView) AlternatingRowBGColor 

func (tv *TableView) AlternatingRowBGColor() Color

AlternatingRowBGColor returns the alternating row background color.

func (*TableView) CheckBoxes 

func (tv *TableView) CheckBoxes() bool

CheckBoxes returns if the *TableView has check boxes.

func (*TableView) ColumnClicked 

func (tv *TableView) ColumnClicked() *IntEvent

ColumnClicked returns the event that is published after a column header was clicked.

func (*TableView) Columns 

func (tv *TableView) Columns() *TableViewColumnList

Columns returns the list of columns.

func (*TableView) ColumnsOrderable 

func (tv *TableView) ColumnsOrderable() bool

ColumnsOrderable returns if the user can reorder columns by dragging and dropping column headers.

func (*TableView) ColumnsSizable 

func (tv *TableView) ColumnsSizable() bool

ColumnsSizable returns if the user can change column widths by dragging dividers in the header.

func (*TableView) CurrentIndex 

func (tv *TableView) CurrentIndex() int

CurrentIndex returns the index of the current item, or -1 if there is no current item.

func (*TableView) CurrentIndexChanged 

func (tv *TableView) CurrentIndexChanged() *Event

CurrentIndexChanged is the event that is published after CurrentIndex has changed.

func (*TableView) Dispose 

func (tv *TableView) Dispose()

Dispose releases the operating system resources, associated with the *TableView.

func (*TableView) ItemActivated 

func (tv *TableView) ItemActivated() *Event

ItemActivated returns the event that is published after an item was activated.

An item is activated when it is double clicked or the enter key is pressed when the item is selected.

func (*TableView) ItemStateChangedEventDelay 

func (tv *TableView) ItemStateChangedEventDelay() int

ItemStateChangedEventDelay returns the delay in milliseconds, between the moment the state of an item in the *TableView changes and the moment the associated event is published.

By default there is no delay.

func (*TableView) LastColumnStretched 

func (tv *TableView) LastColumnStretched() bool

LastColumnStretched returns if the last column should take up all remaining horizontal space of the *TableView.

func (*TableView) LayoutFlags 

func (*TableView) LayoutFlags() LayoutFlags

LayoutFlags returns a combination of LayoutFlags that specify how the *TableView wants to be treated by Layout implementations.

func (*TableView) MinSizeHint 

func (tv *TableView) MinSizeHint() Size

MinSizeHint returns the minimum outer Size, including decorations, that makes sense for the *TableView.

func (*TableView) Model 

func (tv *TableView) Model() interface{}

Model returns the model of the TableView.

func (*TableView) Persistent 

func (tv *TableView) Persistent() bool

Persistent returns if the *TableView should persist its UI state, like column widths. See *App.Settings for details.

func (*TableView) RestoreState 

func (tv *TableView) RestoreState() error

RestoreState restores the UI state of the *TableView from the settings.

func (*TableView) RowsPerPage 

func (tv *TableView) RowsPerPage() int

RowsPerPage returns the number of fully visible rows.

func (*TableView) SaveState 

func (tv *TableView) SaveState() error

SaveState writes the UI state of the *TableView to the settings.

func (*TableView) SelectedIndexes 

func (tv *TableView) SelectedIndexes() *IndexList

SelectedIndexes returns a list of the currently selected item indexes.

func (*TableView) SelectedIndexesChanged 

func (tv *TableView) SelectedIndexesChanged() *Event

SelectedIndexesChanged returns the event that is published when the list of selected item indexes changed.

func (*TableView) SetAlternatingRowBGColor 

func (tv *TableView) SetAlternatingRowBGColor(c Color)

SetAlternatingRowBGColor sets the alternating row background color.

func (*TableView) SetCheckBoxes 

func (tv *TableView) SetCheckBoxes(value bool)

SetCheckBoxes sets if the *TableView has check boxes.

func (*TableView) SetColumnsOrderable 

func (tv *TableView) SetColumnsOrderable(enabled bool)

SetColumnsOrderable sets if the user can reorder columns by dragging and dropping column headers.

func (*TableView) SetColumnsSizable 

func (tv *TableView) SetColumnsSizable(b bool) error

SetColumnsSizable sets if the user can change column widths by dragging dividers in the header.

func (*TableView) SetCurrentIndex 

func (tv *TableView) SetCurrentIndex(value int) error

SetCurrentIndex sets the index of the current item.

Call this with a value of -1 to have no current item.

func (*TableView) SetItemStateChangedEventDelay 

func (tv *TableView) SetItemStateChangedEventDelay(delay int)

SetItemStateChangedEventDelay sets the delay in milliseconds, between the moment the state of an item in the *TableView changes and the moment the associated event is published.

An example where this may be useful is a master-details scenario. If the master TableView is configured to delay the event, you can avoid pointless updates of the details TableView, if the user uses arrow keys to rapidly navigate the master view.

func (*TableView) SetLastColumnStretched 

func (tv *TableView) SetLastColumnStretched(value bool) error

SetLastColumnStretched sets if the last column should take up all remaining horizontal space of the *TableView.

The effect of setting this is persistent.

func (*TableView) SetModel 

func (tv *TableView) SetModel(mdl interface{}) error

SetModel sets the model of the TableView.

It is required that mdl either implements walk.TableModel, walk.ReflectTableModel or be a slice of pointers to struct or a []map[string]interface{}. A walk.TableModel implementation must also implement walk.Sorter to support sorting, all other options get sorting for free. To support item check boxes and icons, mdl must implement walk.ItemChecker and walk.ImageProvider, respectively. On-demand model population for a walk.ReflectTableModel or slice requires mdl to implement walk.Populator.

func (*TableView) SetPersistent 

func (tv *TableView) SetPersistent(value bool)

SetPersistent sets if the *TableView should persist its UI state, like column widths. See *App.Settings for details.

func (*TableView) SetSingleItemSelection 

func (tv *TableView) SetSingleItemSelection(value bool) error

SetSingleItemSelection sets if only a single item can be selected at once.

func (*TableView) SingleItemSelection 

func (tv *TableView) SingleItemSelection() bool

SingleItemSelection returns if only a single item can be selected at once.

By default multiple items can be selected at once.

func (*TableView) SizeHint 

func (tv *TableView) SizeHint() Size

SizeHint returns a sensible Size for a *TableView.

func (*TableView) StretchLastColumn 

func (tv *TableView) StretchLastColumn() error

StretchLastColumn makes the last column take up all remaining horizontal space of the *TableView.

The effect of this is not persistent.

func (*TableView) UpdateItem 

func (tv *TableView) UpdateItem(index int) error

UpdateItem ensures the item at index will be redrawn.

If the model supports sorting, it will be resorted.

func (*TableView) VisibleColumnsInDisplayOrder 

func (tv *TableView) VisibleColumnsInDisplayOrder() []*TableViewColumn

VisibleColumnsInDisplayOrder returns a slice of visible columns in display order.

func (*TableView) WndProc 

func (tv *TableView) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type TableViewColumn 

type TableViewColumn struct {
	// contains filtered or unexported fields
}

TableViewColumn represents a column in a TableView.

func NewTableViewColumn 

func NewTableViewColumn() *TableViewColumn

NewTableViewColumn returns a new TableViewColumn.

func (*TableViewColumn) Alignment 

func (tvc *TableViewColumn) Alignment() Alignment1D

Alignment returns the alignment of the TableViewColumn.

func (*TableViewColumn) DataMember 

func (tvc *TableViewColumn) DataMember() string

DataMember returns the data member this TableViewColumn is bound against.

func (*TableViewColumn) Format 

func (tvc *TableViewColumn) Format() string

Format returns the format string for converting a value into a string.

func (*TableViewColumn) Precision 

func (tvc *TableViewColumn) Precision() int

Precision returns the number of decimal places for formatting float32, float64 or big.Rat values.

func (*TableViewColumn) SetAlignment 

func (tvc *TableViewColumn) SetAlignment(alignment Alignment1D) (err error)

SetAlignment sets the alignment of the TableViewColumn.

func (*TableViewColumn) SetDataMember 

func (tvc *TableViewColumn) SetDataMember(dataMember string)

SetDataMember sets the data member this TableViewColumn is bound against.

func (*TableViewColumn) SetFormat 

func (tvc *TableViewColumn) SetFormat(format string) (err error)

SetFormat sets the format string for converting a value into a string.

func (*TableViewColumn) SetPrecision 

func (tvc *TableViewColumn) SetPrecision(precision int) (err error)

SetPrecision sets the number of decimal places for formatting float32, float64 or big.Rat values.

func (*TableViewColumn) SetTitle 

func (tvc *TableViewColumn) SetTitle(title string) (err error)

SetTitle sets the (default) text to display in the column header.

func (*TableViewColumn) SetTitleOverride 

func (tvc *TableViewColumn) SetTitleOverride(titleOverride string) (err error)

SetTitleOverride sets the (overridden by user) text to display in the column header.

func (*TableViewColumn) SetVisible 

func (tvc *TableViewColumn) SetVisible(visible bool) (err error)

SetVisible sets if the column is visible.

func (*TableViewColumn) SetWidth 

func (tvc *TableViewColumn) SetWidth(width int) (err error)

SetWidth sets the width of the column in pixels.

func (*TableViewColumn) Title 

func (tvc *TableViewColumn) Title() string

Title returns the (default) text to display in the column header.

func (*TableViewColumn) TitleEffective 

func (tvc *TableViewColumn) TitleEffective() string

TitleEffective returns the effective text to display in the column header.

func (*TableViewColumn) TitleOverride 

func (tvc *TableViewColumn) TitleOverride() string

TitleOverride returns the (overridden by user) text to display in the column header.

func (*TableViewColumn) Visible 

func (tvc *TableViewColumn) Visible() bool

Visible returns if the column is visible.

func (*TableViewColumn) Width 

func (tvc *TableViewColumn) Width() int

Width returns the width of the column in pixels.

type TableViewColumnList 

type TableViewColumnList struct {
	// contains filtered or unexported fields
}

func (*TableViewColumnList) Add 

func (l *TableViewColumnList) Add(item *TableViewColumn) error

Add adds a TableViewColumn to the end of the list.

func (*TableViewColumnList) At 

func (l *TableViewColumnList) At(index int) *TableViewColumn

At returns the TableViewColumn as the specified index.

Bounds are not checked.

func (*TableViewColumnList) Clear 

func (l *TableViewColumnList) Clear() error

Clear removes all TableViewColumns from the list.

func (*TableViewColumnList) Contains 

func (l *TableViewColumnList) Contains(item *TableViewColumn) bool

Contains returns whether the specified TableViewColumn is found in the list.

func (*TableViewColumnList) Index 

func (l *TableViewColumnList) Index(item *TableViewColumn) int

Index returns the index of the specified TableViewColumn or -1 if it is not found.

func (*TableViewColumnList) Insert 

func (l *TableViewColumnList) Insert(index int, item *TableViewColumn) error

Insert inserts TableViewColumn item at position index.

A TableViewColumn cannot be contained in multiple TableViewColumnLists at the same time.

func (*TableViewColumnList) Len 

func (l *TableViewColumnList) Len() int

Len returns the number of TableViewColumns in the list.

func (*TableViewColumnList) Remove 

func (l *TableViewColumnList) Remove(item *TableViewColumn) error

Remove removes the specified TableViewColumn from the list.

func (*TableViewColumnList) RemoveAt 

func (l *TableViewColumnList) RemoveAt(index int) error

RemoveAt removes the TableViewColumn at position index.

type TextEdit 

type TextEdit struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewTextEdit 

func NewTextEdit(parent Container) (*TextEdit, error)

func (*TextEdit) AppendText 

func (te *TextEdit) AppendText(value string)

func (*TextEdit) LayoutFlags 

func (*TextEdit) LayoutFlags() LayoutFlags

func (*TextEdit) MinSizeHint 

func (te *TextEdit) MinSizeHint() Size

func (*TextEdit) ReadOnly 

func (te *TextEdit) ReadOnly() bool

func (*TextEdit) ReplaceSelectedText 

func (te *TextEdit) ReplaceSelectedText(text string, canUndo bool)

func (*TextEdit) SetReadOnly 

func (te *TextEdit) SetReadOnly(readOnly bool) error

func (*TextEdit) SetText 

func (te *TextEdit) SetText(value string) error

func (*TextEdit) SetTextSelection 

func (te *TextEdit) SetTextSelection(start, end int)

func (*TextEdit) SizeHint 

func (te *TextEdit) SizeHint() Size

func (*TextEdit) Text 

func (te *TextEdit) Text() string

func (*TextEdit) TextChanged 

func (te *TextEdit) TextChanged() *Event

func (*TextEdit) TextLength 

func (te *TextEdit) TextLength() int

func (*TextEdit) TextSelection 

func (te *TextEdit) TextSelection() (start, end int)

func (*TextEdit) WndProc 

func (te *TextEdit) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type ToolBar 

type ToolBar struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewToolBar 

func NewToolBar(parent Container) (*ToolBar, error)

func NewVerticalToolBar 

func NewVerticalToolBar(parent Container) (*ToolBar, error)

func (*ToolBar) Actions 

func (tb *ToolBar) Actions() *ActionList

func (*ToolBar) DefaultButtonWidth 

func (tb *ToolBar) DefaultButtonWidth() int

DefaultButtonWidth returns the default button width of the ToolBar.

The default value for a horizontal ToolBar is 0, resulting in automatic sizing behavior. For a vertical ToolBar, the default is 100 pixels.

func (*ToolBar) ImageList 

func (tb *ToolBar) ImageList() *ImageList

func (*ToolBar) LayoutFlags 

func (tb *ToolBar) LayoutFlags() LayoutFlags

func (*ToolBar) MaxTextRows 

func (tb *ToolBar) MaxTextRows() int

func (*ToolBar) MinSizeHint 

func (tb *ToolBar) MinSizeHint() Size

func (*ToolBar) SetDefaultButtonWidth 

func (tb *ToolBar) SetDefaultButtonWidth(width int) error

SetDefaultButtonWidth sets the default button width of the ToolBar.

Calling this method affects all buttons in the ToolBar, no matter if they are added before or after the call. A width of 0 results in automatic sizing behavior. Negative values are not allowed.

func (*ToolBar) SetImageList 

func (tb *ToolBar) SetImageList(value *ImageList)

func (*ToolBar) SetMaxTextRows 

func (tb *ToolBar) SetMaxTextRows(maxTextRows int) error

func (*ToolBar) SizeHint 

func (tb *ToolBar) SizeHint() Size

func (*ToolBar) WndProc 

func (tb *ToolBar) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type ToolButton 

type ToolButton struct {
	Button
}

func NewToolButton 

func NewToolButton(parent Container) (*ToolButton, error)

func (*ToolButton) LayoutFlags 

func (*ToolButton) LayoutFlags() LayoutFlags

func (*ToolButton) MinSizeHint 

func (tb *ToolButton) MinSizeHint() Size

func (*ToolButton) SizeHint 

func (tb *ToolButton) SizeHint() Size

func (*ToolButton) WndProc 

func (tb *ToolButton) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type ToolTip 

type ToolTip struct {
	WidgetBase
}

func NewToolTip 

func NewToolTip() (*ToolTip, error)

func (*ToolTip) AddTool 

func (tt *ToolTip) AddTool(tool Widget) error

func (*ToolTip) LayoutFlags 

func (*ToolTip) LayoutFlags() LayoutFlags

func (*ToolTip) RemoveTool 

func (tt *ToolTip) RemoveTool(tool Widget) error

func (*ToolTip) SetErrorTitle 

func (tt *ToolTip) SetErrorTitle(title string) error

func (*ToolTip) SetInfoTitle 

func (tt *ToolTip) SetInfoTitle(title string) error

func (*ToolTip) SetText 

func (tt *ToolTip) SetText(tool Widget, text string) error

func (*ToolTip) SetTitle 

func (tt *ToolTip) SetTitle(title string) error

func (*ToolTip) SetWarningTitle 

func (tt *ToolTip) SetWarningTitle(title string) error

func (*ToolTip) SizeHint 

func (tt *ToolTip) SizeHint() Size

func (*ToolTip) Text 

func (tt *ToolTip) Text(tool Widget) string

func (*ToolTip) Title 

func (tt *ToolTip) Title() string

type TopLevelWindow 

type TopLevelWindow struct {
	ContainerBase
	// contains filtered or unexported fields
}

func (*TopLevelWindow) Close 

func (tlw *TopLevelWindow) Close() error

func (*TopLevelWindow) Closing 

func (tlw *TopLevelWindow) Closing() *CloseEvent

func (*TopLevelWindow) Enabled 

func (tlw *TopLevelWindow) Enabled() bool

func (*TopLevelWindow) Font 

func (tlw *TopLevelWindow) Font() *Font

func (*TopLevelWindow) Hide 

func (tlw *TopLevelWindow) Hide()

func (*TopLevelWindow) Icon 

func (tlw *TopLevelWindow) Icon() *Icon

func (*TopLevelWindow) LayoutFlags 

func (tlw *TopLevelWindow) LayoutFlags() LayoutFlags

func (*TopLevelWindow) Owner 

func (tlw *TopLevelWindow) Owner() RootWidget

func (*TopLevelWindow) ProgressIndicator 

func (tlw *TopLevelWindow) ProgressIndicator() *ProgressIndicator

func (*TopLevelWindow) RestoreState 

func (tlw *TopLevelWindow) RestoreState() error

func (*TopLevelWindow) Run 

func (tlw *TopLevelWindow) Run() int

func (*TopLevelWindow) SaveState 

func (tlw *TopLevelWindow) SaveState() error

func (*TopLevelWindow) SetEnabled 

func (tlw *TopLevelWindow) SetEnabled(enabled bool)

func (*TopLevelWindow) SetIcon 

func (tlw *TopLevelWindow) SetIcon(icon *Icon)

func (*TopLevelWindow) SetOwner 

func (tlw *TopLevelWindow) SetOwner(value RootWidget) error

func (*TopLevelWindow) SetTitle 

func (tlw *TopLevelWindow) SetTitle(value string) error

func (*TopLevelWindow) Show 

func (tlw *TopLevelWindow) Show()

func (*TopLevelWindow) SizeHint 

func (tlw *TopLevelWindow) SizeHint() Size

func (*TopLevelWindow) Starting 

func (tlw *TopLevelWindow) Starting() *Event

func (*TopLevelWindow) Title 

func (tlw *TopLevelWindow) Title() string

func (*TopLevelWindow) WndProc 

func (tlw *TopLevelWindow) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type TranslationFunction 

type TranslationFunction func(source string, context ...string) string

func TranslationFunc 

func TranslationFunc() TranslationFunction

type TreeItem 

type TreeItem interface {
	// Text returns the text of the item.
	Text() string

	// Parent returns the parent of the item.
	Parent() TreeItem

	// ChildCount returns the number of children of the item.
	ChildCount() int

	// ChildAt returns the child at the specified index.
	ChildAt(index int) TreeItem
}

TreeItem represents an item in a TreeView widget.

type TreeItemEvent 

type TreeItemEvent struct {
	// contains filtered or unexported fields
}

func (*TreeItemEvent) Attach 

func (e *TreeItemEvent) Attach(handler TreeItemEventHandler) int

func (*TreeItemEvent) Detach 

func (e *TreeItemEvent) Detach(handle int)

type TreeItemEventHandler 

type TreeItemEventHandler func(item TreeItem)

type TreeItemEventPublisher 

type TreeItemEventPublisher struct {
	// contains filtered or unexported fields
}

func (*TreeItemEventPublisher) Event 

func (p *TreeItemEventPublisher) Event() *TreeItemEvent

func (*TreeItemEventPublisher) Publish 

func (p *TreeItemEventPublisher) Publish(item TreeItem)

type TreeModel 

type TreeModel interface {
	// LazyPopulation returns if the model prefers on-demand population.
	//
	// This is useful for models that potentially contain huge amounts of items,
	// e.g. a model that represents a file system.
	LazyPopulation() bool

	// RootCount returns the number of root items.
	RootCount() int

	// RootAt returns the root item at the specified index.
	RootAt(index int) TreeItem

	// ItemsReset returns the event that the model should publish when the
	// descendants of the specified item, or all items if no item is specified,
	// are reset.
	ItemsReset() *TreeItemEvent

	// ItemChanged returns the event that the model should publish when an item
	// was changed.
	ItemChanged() *TreeItemEvent
}

TreeModel provides widgets like TreeView with item data.

type TreeModelBase 

type TreeModelBase struct {
	// contains filtered or unexported fields
}

TreeModelBase partially implements the TreeModel interface.

You still need to provide your own implementation of at least the RootCount and RootAt methods. If your model needs lazy population, you will also have to implement LazyPopulation.

func (*TreeModelBase) ItemChanged 

func (tmb *TreeModelBase) ItemChanged() *TreeItemEvent

func (*TreeModelBase) ItemsReset 

func (tmb *TreeModelBase) ItemsReset() *TreeItemEvent

func (*TreeModelBase) LazyPopulation 

func (tmb *TreeModelBase) LazyPopulation() bool

func (*TreeModelBase) PublishItemChanged 

func (tmb *TreeModelBase) PublishItemChanged(item TreeItem)

func (*TreeModelBase) PublishItemsReset 

func (tmb *TreeModelBase) PublishItemsReset(parent TreeItem)

type TreeView 

type TreeView struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewTreeView 

func NewTreeView(parent Container) (*TreeView, error)

func (*TreeView) CurrentItem 

func (tv *TreeView) CurrentItem() TreeItem

func (*TreeView) CurrentItemChanged 

func (tv *TreeView) CurrentItemChanged() *Event

func (*TreeView) Dispose 

func (tv *TreeView) Dispose()

func (*TreeView) ItemAt 

func (tv *TreeView) ItemAt(x, y int) TreeItem

func (*TreeView) ItemCollapsed 

func (tv *TreeView) ItemCollapsed() *TreeItemEvent

func (*TreeView) ItemExpanded 

func (tv *TreeView) ItemExpanded() *TreeItemEvent

func (*TreeView) LayoutFlags 

func (*TreeView) LayoutFlags() LayoutFlags

func (*TreeView) Model 

func (tv *TreeView) Model() TreeModel

func (*TreeView) SetCurrentItem 

func (tv *TreeView) SetCurrentItem(item TreeItem) error

func (*TreeView) SetModel 

func (tv *TreeView) SetModel(model TreeModel) error

func (*TreeView) SizeHint 

func (tv *TreeView) SizeHint() Size

func (*TreeView) WndProc 

func (tv *TreeView) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type Validator 

type Validator interface {
	Validate(v interface{}) error
}

func SelectionRequiredValidator 

func SelectionRequiredValidator() Validator

type WebView 

type WebView struct {
	WidgetBase
	// contains filtered or unexported fields
}

func NewWebView 

func NewWebView(parent Container) (*WebView, error)

func (*WebView) Dispose 

func (wv *WebView) Dispose()

func (*WebView) LayoutFlags 

func (*WebView) LayoutFlags() LayoutFlags

func (*WebView) Refresh 

func (wv *WebView) Refresh() error

func (*WebView) SetURL 

func (wv *WebView) SetURL(url string) error

func (*WebView) SizeHint 

func (*WebView) SizeHint() Size

func (*WebView) URL 

func (wv *WebView) URL() (url string, err error)

func (*WebView) URLChanged 

func (wv *WebView) URLChanged() *Event

func (*WebView) WndProc 

func (wv *WebView) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

type Widget 

type Widget interface {
	// Background returns the background Brush of the Widget.
	//
	// By default this is nil.
	Background() Brush

	// BaseWidget returns a *WidgetBase, a pointer to an instance of the struct
	// that implements most operations common to all widgets.
	BaseWidget() *WidgetBase

	// Bounds returns the outer bounding box Rectangle of the Widget, including
	// decorations.
	//
	// For a RootWidget, like *MainWindow or *Dialog, the Rectangle is in screen
	// coordinates, for a child Widget the coordinates are relative to its
	// parent.
	Bounds() Rectangle

	// BringToTop moves the Widget to the top of the keyboard focus order.
	BringToTop() error

	// ClientBounds returns the inner bounding box Rectangle of the Widget,
	// excluding decorations.
	ClientBounds() Rectangle

	// ContextMenu returns the context menu of the Widget.
	//
	// By default this is nil.
	ContextMenu() *Menu

	// CreateCanvas creates and returns a *Canvas that can be used to draw
	// inside the ClientBounds of the Widget.
	//
	// Remember to call the Dispose method on the canvas to release resources,
	// when you no longer need it.
	CreateCanvas() (*Canvas, error)

	// Cursor returns the Cursor of the Widget.
	//
	// By default this is nil.
	Cursor() Cursor

	// DescendantByName traverses a widget's children and returns a widget
	// matching the given name, or nil if not found
	DescendantByName(name string) Widget

	// Dispose releases the operating system resources, associated with the
	// Widget.
	//
	// If a user closes a *MainWindow or *Dialog, it is automatically released.
	// Also, if a Container is disposed of, all its descendants will be released
	// as well.
	Dispose()

	// Enabled returns if the Widget is enabled for user interaction.
	Enabled() bool

	// Font returns the *Font of the Widget.
	//
	// By default this is a MS Shell Dlg 2, 8 point font.
	Font() *Font

	// Handle returns the window handle of the Widget.
	Handle() HWND

	// Height returns the outer height of the Widget, including decorations.
	Height() int

	// Invalidate schedules a full repaint of the Widget.
	Invalidate() error

	// IsDisposed returns if the Widget has been disposed of.
	IsDisposed() bool

	// KeyDown returns a *KeyEvent that you can attach to for handling key down
	// events for the Widget.
	KeyDown() *KeyEvent

	// KeyPress returns a *KeyEvent that you can attach to for handling key
	// press events for the Widget.
	KeyPress() *KeyEvent

	// KeyUp returns a *KeyEvent that you can attach to for handling key up
	// events for the Widget.
	KeyUp() *KeyEvent

	// LayoutFlags returns a combination of LayoutFlags that specify how the
	// Widget wants to be treated by Layout implementations.
	LayoutFlags() LayoutFlags

	// MaxSize returns the maximum allowed outer Size for the Widget, including
	// decorations.
	//
	// For child widgets, this is only relevant when the parent of the Widget
	// has a Layout. RootWidgets, like *MainWindow and *Dialog, also honor this.
	MaxSize() Size

	// MinSize returns the minimum allowed outer Size for the Widget, including
	// decorations.
	//
	// For child widgets, this is only relevant when the parent of the Widget
	// has a Layout. RootWidgets, like *MainWindow and *Dialog, also honor this.
	MinSize() Size

	// MinSizeHint returns the minimum outer Size, including decorations, that
	// makes sense for the respective type of Widget.
	MinSizeHint() Size

	// MouseDown returns a *MouseEvent that you can attach to for handling
	// mouse down events for the Widget.
	MouseDown() *MouseEvent

	// MouseMove returns a *MouseEvent that you can attach to for handling
	// mouse move events for the Widget.
	MouseMove() *MouseEvent

	// MouseUp returns a *MouseEvent that you can attach to for handling
	// mouse up events for the Widget.
	MouseUp() *MouseEvent

	// Name returns the name of the Widget.
	Name() string

	// Parent returns the Container of the Widget.
	//
	// For RootWidgets, like *MainWindow and *Dialog, this is always nil.
	Parent() Container

	// RootWidget returns the root of the UI hierarchy of the Widget, which is
	// usually a *MainWindow or *Dialog.
	RootWidget() RootWidget

	// SendMessage sends a message to the window and returns the result.
	SendMessage(msg uint32, wParam, lParam uintptr) uintptr

	// SetBackground sets the background Brush of the Widget.
	SetBackground(value Brush)

	// SetBounds sets the outer bounding box Rectangle of the Widget, including
	// decorations.
	//
	// For a RootWidget, like *MainWindow or *Dialog, the Rectangle is in screen
	// coordinates, for a child Widget the coordinates are relative to its
	// parent.
	SetBounds(value Rectangle) error

	// SetClientSize sets the Size of the inner bounding box of the Widget,
	// excluding decorations.
	SetClientSize(value Size) error

	// SetContextMenu sets the context menu of the Widget.
	SetContextMenu(value *Menu)

	// SetCursor sets the Cursor of the Widget.
	SetCursor(value Cursor)

	// SetEnabled sets if the Widget is enabled for user interaction.
	SetEnabled(value bool)

	// SetFocus sets the keyboard input focus to the Widget.
	SetFocus() error

	// SetFont sets the *Font of the Widget.
	SetFont(value *Font)

	// SetHeight sets the outer height of the Widget, including decorations.
	SetHeight(value int) error

	// SetMinMaxSize sets the minimum and maximum outer Size of the Widget,
	// including decorations.
	//
	// Use walk.Size{} to make the respective limit be ignored.
	SetMinMaxSize(min, max Size) error

	// SetName sets the name of the Widget.
	//
	// This is important if you want to make use of the built-in UI persistence.
	// Some widgets support automatic state persistence. See Settings for
	// details.
	SetName(name string)

	// SetParent sets the parent of the Widget and adds the Widget to the
	// Children list of the Container.
	SetParent(value Container) error

	// SetSize sets the outer Size of the Widget, including decorations.
	SetSize(value Size) error

	// SetSuspended sets if the Widget is suspended for layout and repainting
	// purposes.
	//
	// You should call SetSuspended(true), before doing a batch of modifications
	// that would cause multiple layout or drawing updates. Remember to call
	// SetSuspended(false) afterwards, which will update the Widget accordingly.
	SetSuspended(suspend bool)

	// SetToolTipText sets the tool tip text of the Widget.
	SetToolTipText(s string) error

	// SetVisible sets if the Widget is visible.
	SetVisible(value bool)

	// SetWidth sets the outer width of the Widget, including decorations.
	SetWidth(value int) error

	// SetX sets the x coordinate of the Widget, relative to the screen for
	// RootWidgets like *MainWindow or *Dialog and relative to the parent for
	// child Widgets.
	SetX(value int) error

	// SetY sets the y coordinate of the Widget, relative to the screen for
	// RootWidgets like *MainWindow or *Dialog and relative to the parent for
	// child Widgets.
	SetY(value int) error

	// Size returns the outer Size of the Widget, including decorations.
	Size() Size

	// SizeChanged returns an *Event that you can attach to for handling size
	// changed events for the Widget.
	SizeChanged() *Event

	// SizeHint returns the preferred Size for the respective type of Widget.
	SizeHint() Size

	// Suspended returns if the Widget is suspended for layout and repainting
	// purposes.
	Suspended() bool

	// Synchronize enqueues func f to be called some time later by the main
	// goroutine from inside a message loop.
	Synchronize(f func())

	// ToolTipText returns the tool tip text of the Widget.
	ToolTipText() string

	// Visible returns if the Widget is visible.
	Visible() bool

	// Width returns the outer width of the Widget, including decorations.
	Width() int

	// WndProc is the window procedure of the widget.
	//
	// When implementing your own WndProc to add or modify behavior, call the
	// WndProc of the embedded widget for messages you don't handle yourself.
	WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

	// X returns the x coordinate of the Widget, relative to the screen for
	// RootWidgets like *MainWindow or *Dialog and relative to the parent for
	// child Widgets.
	X() int

	// Y returns the y coordinate of the Widget, relative to the screen for
	// RootWidgets like *MainWindow or *Dialog and relative to the parent for
	// child Widgets.
	Y() int
}

Widget is an interface that provides operations common to all widgets.

type WidgetBase 

type WidgetBase struct {
	// contains filtered or unexported fields
}

WidgetBase implements many operations common to all Widgets.

func (*WidgetBase) Background 

func (wb *WidgetBase) Background() Brush

Background returns the background Brush of the *WidgetBase.

By default this is nil.

func (*WidgetBase) BaseWidget 

func (wb *WidgetBase) BaseWidget() *WidgetBase

BaseWidget simply returns the receiver.

func (*WidgetBase) Bounds 

func (wb *WidgetBase) Bounds() Rectangle

Bounds returns the outer bounding box Rectangle of the *WidgetBase, including decorations.

For a RootWidget, like *MainWindow or *Dialog, the Rectangle is in screen coordinates, for a child Widget the coordinates are relative to its parent.

func (*WidgetBase) BringToTop 

func (wb *WidgetBase) BringToTop() error

BringToTop moves the *WidgetBase to the top of the keyboard focus order.

func (*WidgetBase) ClientBounds 

func (wb *WidgetBase) ClientBounds() Rectangle

ClientBounds returns the inner bounding box Rectangle of the *WidgetBase, excluding decorations.

func (*WidgetBase) ContextMenu 

func (wb *WidgetBase) ContextMenu() *Menu

ContextMenu returns the context menu of the *WidgetBase.

By default this is nil.

func (*WidgetBase) CreateCanvas 

func (wb *WidgetBase) CreateCanvas() (*Canvas, error)

CreateCanvas creates and returns a *Canvas that can be used to draw inside the ClientBounds of the *WidgetBase.

Remember to call the Dispose method on the canvas to release resources, when you no longer need it.

func (*WidgetBase) Cursor 

func (wb *WidgetBase) Cursor() Cursor

Cursor returns the Cursor of the *WidgetBase.

By default this is nil.

func (*WidgetBase) DescendantByName 

func (wb *WidgetBase) DescendantByName(name string) (widget Widget)

func (*WidgetBase) Dispose 

func (wb *WidgetBase) Dispose()

Dispose releases the operating system resources, associated with the *WidgetBase.

If a user closes a *MainWindow or *Dialog, it is automatically released. Also, if a Container is disposed of, all its descendants will be released as well.

func (*WidgetBase) Enabled 

func (wb *WidgetBase) Enabled() bool

Enabled returns if the *WidgetBase is enabled for user interaction.

func (*WidgetBase) Font 

func (wb *WidgetBase) Font() *Font

Font returns the *Font of the *WidgetBase.

By default this is a MS Shell Dlg 2, 8 point font.

func (*WidgetBase) Handle 

func (wb *WidgetBase) Handle() HWND

Handle returns the window handle of the Widget.

func (*WidgetBase) Height 

func (wb *WidgetBase) Height() int

Height returns the outer height of the *WidgetBase, including decorations.

func (*WidgetBase) Invalidate 

func (wb *WidgetBase) Invalidate() error

Invalidate schedules a full repaint of the *WidgetBase.

func (*WidgetBase) IsDisposed 

func (wb *WidgetBase) IsDisposed() bool

IsDisposed returns if the *WidgetBase has been disposed of.

func (*WidgetBase) KeyDown 

func (wb *WidgetBase) KeyDown() *KeyEvent

KeyDown returns a *KeyEvent that you can attach to for handling key down events for the *WidgetBase.

func (*WidgetBase) KeyPress 

func (wb *WidgetBase) KeyPress() *KeyEvent

KeyPress returns a *KeyEvent that you can attach to for handling key press events for the *WidgetBase.

func (*WidgetBase) KeyUp 

func (wb *WidgetBase) KeyUp() *KeyEvent

KeyUp returns a *KeyEvent that you can attach to for handling key up events for the *WidgetBase.

func (*WidgetBase) LayoutFlags 

func (wb *WidgetBase) LayoutFlags() LayoutFlags

LayoutFlags returns a combination of LayoutFlags that specify how the *WidgetBase wants to be treated by Layout implementations.

func (*WidgetBase) MaxSize 

func (wb *WidgetBase) MaxSize() Size

MaxSize returns the maximum allowed outer Size for the *WidgetBase, including decorations.

For child widgets, this is only relevant when the parent of the *WidgetBase has a Layout. RootWidgets, like *MainWindow and *Dialog, also honor this.

func (*WidgetBase) MinSize 

func (wb *WidgetBase) MinSize() Size

MinSize returns the minimum allowed outer Size for the *WidgetBase, including decorations.

For child widgets, this is only relevant when the parent of the *WidgetBase has a Layout. RootWidgets, like *MainWindow and *Dialog, also honor this.

func (*WidgetBase) MinSizeHint 

func (wb *WidgetBase) MinSizeHint() Size

MinSizeHint returns the minimum outer Size, including decorations, that makes sense for the respective type of Widget.

func (*WidgetBase) MouseDown 

func (wb *WidgetBase) MouseDown() *MouseEvent

MouseDown returns a *MouseEvent that you can attach to for handling mouse down events for the *WidgetBase.

func (*WidgetBase) MouseMove 

func (wb *WidgetBase) MouseMove() *MouseEvent

MouseMove returns a *MouseEvent that you can attach to for handling mouse move events for the *WidgetBase.

func (*WidgetBase) MouseUp 

func (wb *WidgetBase) MouseUp() *MouseEvent

MouseUp returns a *MouseEvent that you can attach to for handling mouse up events for the *WidgetBase.

func (*WidgetBase) MustRegisterProperty 

func (wb *WidgetBase) MustRegisterProperty(name string, property Property)

func (*WidgetBase) Name 

func (wb *WidgetBase) Name() string

Name returns the name of the *WidgetBase.

func (*WidgetBase) Parent 

func (wb *WidgetBase) Parent() Container

Parent returns the Container of the *WidgetBase.

For RootWidgets, like *MainWindow and *Dialog, this is always nil.

func (*WidgetBase) Property 

func (wb *WidgetBase) Property(name string) Property

func (*WidgetBase) RootWidget 

func (wb *WidgetBase) RootWidget() RootWidget

RootWidget returns the root of the UI hierarchy of the *WidgetBase, which is usually a *MainWindow or *Dialog.

func (*WidgetBase) SendMessage 

func (wb *WidgetBase) SendMessage(msg uint32, wParam, lParam uintptr) uintptr

SendMessage sends a message to the window and returns the result.

func (*WidgetBase) SetBackground 

func (wb *WidgetBase) SetBackground(value Brush)

SetBackground sets the background Brush of the *WidgetBase.

func (*WidgetBase) SetBounds 

func (wb *WidgetBase) SetBounds(bounds Rectangle) error

SetBounds returns the outer bounding box Rectangle of the *WidgetBase, including decorations.

For a RootWidget, like *MainWindow or *Dialog, the Rectangle is in screen coordinates, for a child Widget the coordinates are relative to its parent.

func (*WidgetBase) SetClientSize 

func (wb *WidgetBase) SetClientSize(value Size) error

SetClientSize sets the Size of the inner bounding box of the *WidgetBase, excluding decorations.

func (*WidgetBase) SetContextMenu 

func (wb *WidgetBase) SetContextMenu(value *Menu)

SetContextMenu sets the context menu of the *WidgetBase.

func (*WidgetBase) SetCursor 

func (wb *WidgetBase) SetCursor(value Cursor)

SetCursor sets the Cursor of the *WidgetBase.

func (*WidgetBase) SetEnabled 

func (wb *WidgetBase) SetEnabled(value bool)

SetEnabled sets if the *WidgetBase is enabled for user interaction.

func (*WidgetBase) SetFocus 

func (wb *WidgetBase) SetFocus() error

SetFocus sets the keyboard input focus to the *WidgetBase.

func (*WidgetBase) SetFont 

func (wb *WidgetBase) SetFont(value *Font)

SetFont sets the *Font of the *WidgetBase.

func (*WidgetBase) SetHeight 

func (wb *WidgetBase) SetHeight(value int) error

SetHeight sets the outer height of the *WidgetBase, including decorations.

func (*WidgetBase) SetMinMaxSize 

func (wb *WidgetBase) SetMinMaxSize(min, max Size) error

SetMinMaxSize sets the minimum and maximum outer Size of the *WidgetBase, including decorations.

Use walk.Size{} to make the respective limit be ignored.

func (*WidgetBase) SetName 

func (wb *WidgetBase) SetName(name string)

SetName sets the name of the *WidgetBase.

func (*WidgetBase) SetParent 

func (wb *WidgetBase) SetParent(value Container) (err error)

SetParent sets the parent of the *WidgetBase and adds the *WidgetBase to the Children list of the Container.

func (*WidgetBase) SetSize 

func (wb *WidgetBase) SetSize(size Size) error

SetSize sets the outer Size of the *WidgetBase, including decorations.

func (*WidgetBase) SetSuspended 

func (wb *WidgetBase) SetSuspended(suspend bool)

SetSuspended sets if the *WidgetBase is suspended for layout and repainting purposes.

You should call SetSuspended(true), before doing a batch of modifications that would cause multiple layout or drawing updates. Remember to call SetSuspended(false) afterwards, which will update the *WidgetBase accordingly.

func (*WidgetBase) SetToolTipText 

func (wb *WidgetBase) SetToolTipText(s string) error

SetToolTipText sets the tool tip text of the *WidgetBase.

func (*WidgetBase) SetVisible 

func (wb *WidgetBase) SetVisible(visible bool)

SetVisible sets if the *WidgetBase is visible.

func (*WidgetBase) SetWidth 

func (wb *WidgetBase) SetWidth(value int) error

SetWidth sets the outer width of the *WidgetBase, including decorations.

func (*WidgetBase) SetX 

func (wb *WidgetBase) SetX(value int) error

SetX sets the x coordinate of the *WidgetBase, relative to the screen for RootWidgets like *MainWindow or *Dialog and relative to the parent for child Widgets.

func (*WidgetBase) SetY 

func (wb *WidgetBase) SetY(value int) error

SetY sets the y coordinate of the *WidgetBase, relative to the screen for RootWidgets like *MainWindow or *Dialog and relative to the parent for child Widgets.

func (*WidgetBase) Size 

func (wb *WidgetBase) Size() Size

Size returns the outer Size of the *WidgetBase, including decorations.

func (*WidgetBase) SizeChanged 

func (wb *WidgetBase) SizeChanged() *Event

SizeChanged returns an *Event that you can attach to for handling size changed events for the *WidgetBase.

func (*WidgetBase) SizeHint 

func (wb *WidgetBase) SizeHint() Size

SizeHint returns a default Size that should be "overidden" by a concrete Widget type.

func (*WidgetBase) Suspended 

func (wb *WidgetBase) Suspended() bool

Suspended returns if the *WidgetBase is suspended for layout and repainting purposes.

func (*WidgetBase) Synchronize 

func (wb *WidgetBase) Synchronize(f func())

Synchronize enqueues func f to be called some time later by the main goroutine from inside a message loop.

func (*WidgetBase) ToolTipText 

func (wb *WidgetBase) ToolTipText() string

ToolTipText returns the tool tip text of the *WidgetBase.

func (*WidgetBase) Visible 

func (wb *WidgetBase) Visible() bool

Visible returns if the *WidgetBase is visible.

func (*WidgetBase) Width 

func (wb *WidgetBase) Width() int

Width returns the outer width of the *WidgetBase, including decorations.

func (*WidgetBase) WndProc 

func (wb *WidgetBase) WndProc(hwnd HWND, msg uint32, wParam, lParam uintptr) uintptr

WndProc is the window procedure of the widget.

When implementing your own WndProc to add or modify behavior, call the WndProc of the embedded widget for messages you don't handle yourself.

func (*WidgetBase) X 

func (wb *WidgetBase) X() int

X returns the x coordinate of the *WidgetBase, relative to the screen for RootWidgets like *MainWindow or *Dialog and relative to the parent for child Widgets.

func (*WidgetBase) Y 

func (wb *WidgetBase) Y() int

Y returns the y coordinate of the *WidgetBase, relative to the screen for RootWidgets like *MainWindow or *Dialog and relative to the parent for child Widgets.

type WidgetList 

type WidgetList struct {
	// contains filtered or unexported fields
}

func (*WidgetList) Add 

func (l *WidgetList) Add(item Widget) error

func (*WidgetList) At 

func (l *WidgetList) At(index int) Widget

func (*WidgetList) Clear 

func (l *WidgetList) Clear() error

func (*WidgetList) Contains 

func (l *WidgetList) Contains(item Widget) bool

func (*WidgetList) Index 

func (l *WidgetList) Index(item Widget) int

func (*WidgetList) Insert 

func (l *WidgetList) Insert(index int, item Widget) error

func (*WidgetList) Len 

func (l *WidgetList) Len() int

func (*WidgetList) Remove 

func (l *WidgetList) Remove(item Widget) error

func (*WidgetList) RemoveAt 

func (l *WidgetList) RemoveAt(index int) error

Source Files

View all Source files

Directories

Path Synopsis
examples
actions
clipboard
databinding
drawing
externalwidgets
filebrowser
imageicon
imageviewer
listbox
logview
notifyicon
progressindicator
radiobutton
tableview
webview
tools
ui2walk

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