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uidriver/glfw: Refactoring: Remove forceSetScreenSize

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This commit is contained in:
Hajime Hoshi 2019-12-07 17:32:25 +09:00
parent c9bc5913fd
commit 67ee0ff5d4
1 changed files with 18 additions and 18 deletions
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36
internal/uidriver/glfw/ui.go
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@ -51,7 +51,7 @@ type UserInterface struct {
runnableInBackground bool
vsync bool
lastActualScale float64
lastMonitorScale float64
initMonitor *glfw.Monitor
initFullscreenWidth int
@ -773,23 +773,22 @@ func (u *UserInterface) getScale() float64 {
// actualScreenScale must be called from the main thread.
func (u *UserInterface) actualScreenScale() float64 {
return u.getScale() * u.monitorScale()
}
// monitorScale must be called from the main thread.
func (u *UserInterface) monitorScale() float64 {
// Avoid calling monitor.GetPos if we have the monitor position cached already.
if cm, ok := getCachedMonitor(u.window.GetPos()); ok {
return u.getScale() * devicescale.GetAt(cm.x, cm.y)
return devicescale.GetAt(cm.x, cm.y)
}
return u.getScale() * devicescale.GetAt(u.currentMonitor().GetPos())
return devicescale.GetAt(u.currentMonitor().GetPos())
}
func (u *UserInterface) updateSize(context driver.UIContext) {
actualScale := 0.0
sizeChanged := false
// TODO: Is it possible to reduce 'runOnMainThread' calls?
_ = u.t.Call(func() error {
actualScale = u.actualScreenScale()
if u.lastActualScale != actualScale {
u.forceSetScreenSize(u.width, u.height, u.scale, u.isFullscreen(), u.vsync)
}
u.lastActualScale = actualScale
u.setScreenSize(u.width, u.height, u.scale, u.isFullscreen(), u.vsync)
if !u.toChangeSize {
return nil
@ -800,6 +799,11 @@ func (u *UserInterface) updateSize(context driver.UIContext) {
return nil
})
if sizeChanged {
actualScale := 0.0
_ = u.t.Call(func() error {
actualScale = u.actualScreenScale()
return nil
})
context.SetSize(u.width, u.height, actualScale)
}
}
@ -917,16 +921,11 @@ func (u *UserInterface) swapBuffers() {
}
// setScreenSize must be called from the main thread.
func (u *UserInterface) setScreenSize(width, height int, scale float64, fullscreen bool, vsync bool) bool {
if u.width == width && u.height == height && u.scale == scale && u.isFullscreen() == fullscreen && u.vsync == vsync {
return false
func (u *UserInterface) setScreenSize(width, height int, scale float64, fullscreen bool, vsync bool) {
if u.width == width && u.height == height && u.scale == scale && u.isFullscreen() == fullscreen && u.vsync == vsync && u.lastMonitorScale == u.monitorScale() {
return
}
u.forceSetScreenSize(width, height, scale, fullscreen, vsync)
return true
}
// forceSetScreenSize must be called from the main thread.
func (u *UserInterface) forceSetScreenSize(width, height int, scale float64, fullscreen bool, vsync bool) {
// On Windows, giving a too small width doesn't call a callback (#165).
// To prevent hanging up, return asap if the width is too small.
// 252 is an arbitrary number and I guess this is small enough.
@ -952,6 +951,7 @@ func (u *UserInterface) forceSetScreenSize(width, height int, scale float64, ful
u.scale = scale
u.fullscreenScale = 0
u.vsync = vsync
u.lastMonitorScale = u.monitorScale()
// To make sure the current existing framebuffers are rendered,
// swap buffers here before SetSize is called.