window

package
v0.0.0-...-d21f05d Latest Latest
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 Go to latest Published: May 14, 2023 License: BSD-2-Clause Imports: 11 Imported by: 0

Documentation

Overview

Package window abstracts a platform-specific window. Depending on the build tags it can be a GLFW desktop window or a browser WebGlCanvas.

Index

Constants

View Source 
const (
	KeyUnknown      = Key(glfw.KeyUnknown)
	KeySpace        = Key(glfw.KeySpace)
	KeyApostrophe   = Key(glfw.KeyApostrophe)
	KeyComma        = Key(glfw.KeyComma)
	KeyMinus        = Key(glfw.KeyMinus)
	KeyPeriod       = Key(glfw.KeyPeriod)
	KeySlash        = Key(glfw.KeySlash)
	Key0            = Key(glfw.Key0)
	Key1            = Key(glfw.Key1)
	Key2            = Key(glfw.Key2)
	Key3            = Key(glfw.Key3)
	Key4            = Key(glfw.Key4)
	Key5            = Key(glfw.Key5)
	Key6            = Key(glfw.Key6)
	Key7            = Key(glfw.Key7)
	Key8            = Key(glfw.Key8)
	Key9            = Key(glfw.Key9)
	KeySemicolon    = Key(glfw.KeySemicolon)
	KeyEqual        = Key(glfw.KeyEqual)
	KeyA            = Key(glfw.KeyA)
	KeyB            = Key(glfw.KeyB)
	KeyC            = Key(glfw.KeyC)
	KeyD            = Key(glfw.KeyD)
	KeyE            = Key(glfw.KeyE)
	KeyF            = Key(glfw.KeyF)
	KeyG            = Key(glfw.KeyG)
	KeyH            = Key(glfw.KeyH)
	KeyI            = Key(glfw.KeyI)
	KeyJ            = Key(glfw.KeyJ)
	KeyK            = Key(glfw.KeyK)
	KeyL            = Key(glfw.KeyL)
	KeyM            = Key(glfw.KeyM)
	KeyN            = Key(glfw.KeyN)
	KeyO            = Key(glfw.KeyO)
	KeyP            = Key(glfw.KeyP)
	KeyQ            = Key(glfw.KeyQ)
	KeyR            = Key(glfw.KeyR)
	KeyS            = Key(glfw.KeyS)
	KeyT            = Key(glfw.KeyT)
	KeyU            = Key(glfw.KeyU)
	KeyV            = Key(glfw.KeyV)
	KeyW            = Key(glfw.KeyW)
	KeyX            = Key(glfw.KeyX)
	KeyY            = Key(glfw.KeyY)
	KeyZ            = Key(glfw.KeyZ)
	KeyLeftBracket  = Key(glfw.KeyLeftBracket)
	KeyBackslash    = Key(glfw.KeyBackslash)
	KeyRightBracket = Key(glfw.KeyRightBracket)
	KeyGraveAccent  = Key(glfw.KeyGraveAccent)
	KeyWorld1       = Key(glfw.KeyWorld1)
	KeyWorld2       = Key(glfw.KeyWorld2)
	KeyEscape       = Key(glfw.KeyEscape)
	KeyEnter        = Key(glfw.KeyEnter)
	KeyTab          = Key(glfw.KeyTab)
	KeyBackspace    = Key(glfw.KeyBackspace)
	KeyInsert       = Key(glfw.KeyInsert)
	KeyDelete       = Key(glfw.KeyDelete)
	KeyRight        = Key(glfw.KeyRight)
	KeyLeft         = Key(glfw.KeyLeft)
	KeyDown         = Key(glfw.KeyDown)
	KeyUp           = Key(glfw.KeyUp)
	KeyPageUp       = Key(glfw.KeyPageUp)
	KeyPageDown     = Key(glfw.KeyPageDown)
	KeyHome         = Key(glfw.KeyHome)
	KeyEnd          = Key(glfw.KeyEnd)
	KeyCapsLock     = Key(glfw.KeyCapsLock)
	KeyScrollLock   = Key(glfw.KeyScrollLock)
	KeyNumLock      = Key(glfw.KeyNumLock)
	KeyPrintScreen  = Key(glfw.KeyPrintScreen)
	KeyPause        = Key(glfw.KeyPause)
	KeyF1           = Key(glfw.KeyF1)
	KeyF2           = Key(glfw.KeyF2)
	KeyF3           = Key(glfw.KeyF3)
	KeyF4           = Key(glfw.KeyF4)
	KeyF5           = Key(glfw.KeyF5)
	KeyF6           = Key(glfw.KeyF6)
	KeyF7           = Key(glfw.KeyF7)
	KeyF8           = Key(glfw.KeyF8)
	KeyF9           = Key(glfw.KeyF9)
	KeyF10          = Key(glfw.KeyF10)
	KeyF11          = Key(glfw.KeyF11)
	KeyF12          = Key(glfw.KeyF12)
	KeyF13          = Key(glfw.KeyF13)
	KeyF14          = Key(glfw.KeyF14)
	KeyF15          = Key(glfw.KeyF15)
	KeyF16          = Key(glfw.KeyF16)
	KeyF17          = Key(glfw.KeyF17)
	KeyF18          = Key(glfw.KeyF18)
	KeyF19          = Key(glfw.KeyF19)
	KeyF20          = Key(glfw.KeyF20)
	KeyF21          = Key(glfw.KeyF21)
	KeyF22          = Key(glfw.KeyF22)
	KeyF23          = Key(glfw.KeyF23)
	KeyF24          = Key(glfw.KeyF24)
	KeyF25          = Key(glfw.KeyF25)
	KeyKP0          = Key(glfw.KeyKP0)
	KeyKP1          = Key(glfw.KeyKP1)
	KeyKP2          = Key(glfw.KeyKP2)
	KeyKP3          = Key(glfw.KeyKP3)
	KeyKP4          = Key(glfw.KeyKP4)
	KeyKP5          = Key(glfw.KeyKP5)
	KeyKP6          = Key(glfw.KeyKP6)
	KeyKP7          = Key(glfw.KeyKP7)
	KeyKP8          = Key(glfw.KeyKP8)
	KeyKP9          = Key(glfw.KeyKP9)
	KeyKPDecimal    = Key(glfw.KeyKPDecimal)
	KeyKPDivide     = Key(glfw.KeyKPDivide)
	KeyKPMultiply   = Key(glfw.KeyKPMultiply)
	KeyKPSubtract   = Key(glfw.KeyKPSubtract)
	KeyKPAdd        = Key(glfw.KeyKPAdd)
	KeyKPEnter      = Key(glfw.KeyKPEnter)
	KeyKPEqual      = Key(glfw.KeyKPEqual)
	KeyLeftShift    = Key(glfw.KeyLeftShift)
	KeyLeftControl  = Key(glfw.KeyLeftControl)
	KeyLeftAlt      = Key(glfw.KeyLeftAlt)
	KeyLeftSuper    = Key(glfw.KeyLeftSuper)
	KeyRightShift   = Key(glfw.KeyRightShift)
	KeyRightControl = Key(glfw.KeyRightControl)
	KeyRightAlt     = Key(glfw.KeyRightAlt)
	KeyRightSuper   = Key(glfw.KeyRightSuper)
	KeyMenu         = Key(glfw.KeyMenu)
	KeyLast         = Key(glfw.KeyLast)
)

Keycodes

View Source 
const (
	ModShift   = ModifierKey(glfw.ModShift)
	ModControl = ModifierKey(glfw.ModControl)
	ModAlt     = ModifierKey(glfw.ModAlt)
	ModSuper   = ModifierKey(glfw.ModSuper)
)

Modifier keys

View Source 
const (
	MouseButton1      = MouseButton(glfw.MouseButton1)
	MouseButton2      = MouseButton(glfw.MouseButton2)
	MouseButton3      = MouseButton(glfw.MouseButton3)
	MouseButton4      = MouseButton(glfw.MouseButton4)
	MouseButton5      = MouseButton(glfw.MouseButton5)
	MouseButton6      = MouseButton(glfw.MouseButton6)
	MouseButton7      = MouseButton(glfw.MouseButton7)
	MouseButton8      = MouseButton(glfw.MouseButton8)
	MouseButtonLast   = MouseButton(glfw.MouseButtonLast)
	MouseButtonLeft   = MouseButton(glfw.MouseButtonLeft)
	MouseButtonRight  = MouseButton(glfw.MouseButtonRight)
	MouseButtonMiddle = MouseButton(glfw.MouseButtonMiddle)
)

Mouse buttons

View Source 
const (
	CursorInputMode             = InputMode(glfw.CursorMode)             // See Cursor mode values
	StickyKeysInputMode         = InputMode(glfw.StickyKeysMode)         // Value can be either 1 or 0
	StickyMouseButtonsInputMode = InputMode(glfw.StickyMouseButtonsMode) // Value can be either 1 or 0
)

Input modes

View Source 
const (
	CursorNormal   = CursorMode(glfw.CursorNormal)
	CursorHidden   = CursorMode(glfw.CursorHidden)
	CursorDisabled = CursorMode(glfw.CursorDisabled)
)

Cursor mode values

View Source 
const (
	ArrowCursor = Cursor(iota)
	IBeamCursor
	CrosshairCursor
	HandCursor
	HResizeCursor
	VResizeCursor
	DiagResize1Cursor
	DiagResize2Cursor
	CursorLast = DiagResize2Cursor
)

Standard cursors for G3N.

View Source 
const (
	OnWindowFocus = "w.OnWindowFocus" //    x    |    x    |
	OnWindowPos   = "w.OnWindowPos"   //    x    |         |
	OnWindowSize  = "w.OnWindowSize"  //    x    |         |
	OnKeyUp       = "w.OnKeyUp"       //    x    |    x    |
	OnKeyDown     = "w.OnKeyDown"     //    x    |    x    |
	OnKeyRepeat   = "w.OnKeyRepeat"   //    x    |         |
	OnChar        = "w.OnChar"        //    x    |    x    |
	OnCursor      = "w.OnCursor"      //    x    |    x    |
	OnMouseUp     = "w.OnMouseUp"     //    x    |    x    |
	OnMouseDown   = "w.OnMouseDown"   //    x    |    x    |
	OnScroll      = "w.OnScroll"      //    x    |    x    |
)

Window event names. See availability per platform below ("x" indicates available).

Variables

This section is empty.

Functions

func Init 

func Init(width, height int, title string) error

Init initializes the GlfwWindow singleton with the specified width, height, and title.

Types

type CharEvent 

type CharEvent struct {
	Char rune
	Mods ModifierKey
}

CharEvent describes a window char event

type Cursor 

type Cursor int

Cursor corresponds to a g3n standard or user-created cursor icon.

type CursorEvent 

type CursorEvent struct {
	Xpos float32
	Ypos float32
	Mods ModifierKey
}

CursorEvent describes a cursor position changed event

type CursorMode 

type CursorMode int

InputMode corresponds to an input mode.

type FocusEvent 

type FocusEvent struct {
	Focused bool
}

FocusEvent describes a focus event

type GlfwWindow 

type GlfwWindow struct {
	*glfw.Window    // Embedded GLFW window
	core.Dispatcher // Embedded event dispatcher
	// contains filtered or unexported fields
}

GlfwWindow describes one glfw window

func (*GlfwWindow) CreateCursor 

func (w *GlfwWindow) CreateCursor(imgFile string, xhot, yhot int) (Cursor, error)

CreateCursor creates a new custom cursor and returns an int handle.

func (*GlfwWindow) Destroy 

func (w *GlfwWindow) Destroy()

Destroy destroys this window and its context

func (*GlfwWindow) DisposeAllCustomCursors 

func (w *GlfwWindow) DisposeAllCustomCursors()

DisposeAllCursors deletes all existing custom cursors.

func (*GlfwWindow) DisposeCursor 

func (w *GlfwWindow) DisposeCursor(cursor Cursor)

DisposeCursor deletes the existing custom cursor with the provided int handle.

func (*GlfwWindow) FullScreen 

func (w *GlfwWindow) FullScreen() bool

FullScreen returns whether this windows is currently fullscreen.

func (*GlfwWindow) GetScale 

func (w *GlfwWindow) GetScale() (x float64, y float64)

Scale returns this window's DPI scale factor (FramebufferSize / Size)

func (*GlfwWindow) Gls 

func (w *GlfwWindow) Gls() *gls.GLS

Gls returns the associated OpenGL state.

func (*GlfwWindow) PollEvents 

func (w *GlfwWindow) PollEvents()

PollEvents process events in the event queue

func (*GlfwWindow) ScreenResolution 

func (w *GlfwWindow) ScreenResolution(p interface{}) (width, height int)

ScreenResolution returns the screen resolution

func (*GlfwWindow) SetCursor 

func (w *GlfwWindow) SetCursor(cursor Cursor)

SetCursor sets the window's cursor.

func (*GlfwWindow) SetFullScreen 

func (w *GlfwWindow) SetFullScreen(full bool)

SetFullScreen sets this window as fullscreen on the primary monitor TODO allow for fullscreen with resolutions different than the monitor's

func (*GlfwWindow) SetSwapInterval 

func (w *GlfwWindow) SetSwapInterval(interval int)

SetSwapInterval sets the number of screen updates to wait from the time SwapBuffer() is called before swapping the buffers and returning.

type IWindow 

type IWindow interface {
	core.IDispatcher
	Gls() *gls.GLS
	GetFramebufferSize() (width int, height int)
	GetSize() (width int, height int)
	GetScale() (x float64, y float64)
	CreateCursor(imgFile string, xhot, yhot int) (Cursor, error)
	SetCursor(cursor Cursor)
	DisposeAllCustomCursors()
	Destroy()
	FullScreen() bool
	SetFullScreen(full bool)
}

IWindow is the interface for all windows

func Get 

func Get() IWindow

Get returns the IWindow singleton.

type InputMode 

type InputMode int

InputMode corresponds to an input mode.

type Key 

type Key int

Key corresponds to a keyboard key.

type KeyEvent 

type KeyEvent struct {
	Key  Key
	Mods ModifierKey
}

KeyEvent describes a window key event

type KeyState 

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

KeyState keeps track of the state of all keys.

func NewKeyState 

func NewKeyState(win core.IDispatcher) *KeyState

NewKeyState returns a new KeyState object.

func (*KeyState) Dispose 

func (ks *KeyState) Dispose()

Dispose unsubscribes from the window events.

func (*KeyState) Pressed 

func (ks *KeyState) Pressed(k Key) bool

Pressed returns whether the specified key is currently pressed.

type ModifierKey 

type ModifierKey int

ModifierKey corresponds to a set of modifier keys (bitmask).

type MouseButton 

type MouseButton int

MouseButton corresponds to a mouse button.

type MouseEvent 

type MouseEvent struct {
	Xpos   float32
	Ypos   float32
	Button MouseButton
	Mods   ModifierKey
}

MouseEvent describes a mouse event over the window

type PosEvent 

type PosEvent struct {
	Xpos int
	Ypos int
}

PosEvent describes a windows position changed event

type ScrollEvent 

type ScrollEvent struct {
	Xoffset float32
	Yoffset float32
	Mods    ModifierKey
}

ScrollEvent describes a scroll event

type SizeEvent 

type SizeEvent struct {
	Width  int
	Height int
}

SizeEvent describers a window size changed event

Source Files

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