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uidriver/glfw: Bug fix: Treat X scale (HiDPI) correctly

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Fixes #1350
This commit is contained in:
Hajime Hoshi 2020-09-19 01:24:16 +09:00
parent 40e35fa047
commit 51f06139a6
2 changed files with 12 additions and 3 deletions
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4
internal/glfw/glfw_notwindows.go
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@ -62,6 +62,10 @@ type Monitor struct {
m *glfw.Monitor
}
func (m *Monitor) GetContentScale() (float32, float32) {
return m.m.GetContentScale()
}
func (m *Monitor) GetPos() (x, y int) {
return m.m.GetPos()
}

11
internal/uidriver/glfw/ui_unix.go
View File

@ -29,17 +29,22 @@ func (u *UserInterface) fromGLFWMonitorPixel(x float64) float64 {
// fromGLFWPixel must be called from the main thread.
func (u *UserInterface) fromGLFWPixel(x float64) float64 {
return x
// deviceScaleFactor() is a scale by desktop environment (e.g., Cinnamon), while GetContentScale() is X's scale.
// They are different things and then need to be treated different ways (#1350).
s, _ := currentMonitor(u.window).GetContentScale()
return x / float64(s)
}
// toGLFWPixel must be called from the main thread.
func (u *UserInterface) toGLFWPixel(x float64) float64 {
return x
s, _ := currentMonitor(u.window).GetContentScale()
return x * float64(s)
}
// toFramebufferPixel must be called from the main thread.
func (u *UserInterface) toFramebufferPixel(x float64) float64 {
return x / u.deviceScaleFactor()
s, _ := currentMonitor(u.window).GetContentScale()
return x / u.deviceScaleFactor() * float64(s)
}
func (u *UserInterface) adjustWindowPosition(x, y int) (int, int) {