Documentation ¶
Overview ¶
Package size defines an event for the dimensions, physical resolution and orientation of the app's window.
See the github.com/thommil/tge-mobile/app package for details on the event model.
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
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Types ¶
type Event ¶
type Event struct {
// WidthPx and HeightPx are the window's dimensions in pixels.
WidthPx, HeightPx int
// WidthPt and HeightPt are the window's physical dimensions in points
// (1/72 of an inch).
//
// The values are based on PixelsPerPt and are therefore approximate, as
// per the comment on PixelsPerPt.
WidthPt, HeightPt geom.Pt
// PixelsPerPt is the window's physical resolution. It is the number of
// pixels in a single geom.Pt, from the github.com/thommil/tge-mobile/geom package.
//
// There are a wide variety of pixel densities in existing phones and
// tablets, so apps should be written to expect various non-integer
// PixelsPerPt values. In general, work in geom.Pt.
//
// The value is approximate, in that the OS, drivers or hardware may report
// approximate or quantized values. An N x N pixel square should be roughly
// 1 square inch for N = int(PixelsPerPt * 72), although different square
// lengths (in pixels) might be closer to 1 inch in practice. Nonetheless,
// this PixelsPerPt value should be consistent with e.g. the ratio of
// WidthPx to WidthPt.
PixelsPerPt float32
// Orientation is the orientation of the device screen.
Orientation Orientation
}
Event holds the dimensions, physical resolution and orientation of the app's window.
type Orientation ¶
type Orientation int
Orientation is the orientation of the device screen.
const ( // OrientationUnknown means device orientation cannot be determined. // // Equivalent on Android to Configuration.ORIENTATION_UNKNOWN // and on iOS to: // UIDeviceOrientationUnknown // UIDeviceOrientationFaceUp // UIDeviceOrientationFaceDown OrientationUnknown Orientation = iota // OrientationPortrait is a device oriented so it is tall and thin. // // Equivalent on Android to Configuration.ORIENTATION_PORTRAIT // and on iOS to: // UIDeviceOrientationPortrait // UIDeviceOrientationPortraitUpsideDown OrientationPortrait // OrientationLandscape is a device oriented so it is short and wide. // // Equivalent on Android to Configuration.ORIENTATION_LANDSCAPE // and on iOS to: // UIDeviceOrientationLandscapeLeft // UIDeviceOrientationLandscapeRight OrientationLandscape )
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