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app/window,app/internal/window: allow min/max window size

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The app.MinSize and app.MaxSize options restricts the window size:

w := app.NewWindow(
	app.Size(unit.Dp(600), unit.Dp(596)),
	app.MinSize(unit.Dp(600), unit.Dp(596)),
	app.MaxSize(unit.Dp(600), unit.Dp(596)),
	app.Title(APPNAME),
)

Signed-off-by: Jason <sourcehut@sweatyballs.es>
This commit is contained in:
Jason
2020-06-22 12:49:41 +02:00
committed by Elias Naur
parent 20cf570709
commit 9cfbdafe14
7 changed files with 150 additions and 33 deletions
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app/internal/window/os_macos.go
+11 -2
View File
@@ -41,7 +41,7 @@ __attribute__ ((visibility ("hidden"))) CFTypeRef gio_readClipboard(void);
__attribute__ ((visibility ("hidden"))) void gio_writeClipboard(unichar *chars, NSUInteger length);
__attribute__ ((visibility ("hidden"))) void gio_setNeedsDisplay(CFTypeRef viewRef);
__attribute__ ((visibility ("hidden"))) void gio_appTerminate(void);
__attribute__ ((visibility ("hidden"))) CFTypeRef gio_createWindow(CFTypeRef viewRef, const char *title, CGFloat width, CGFloat height);
__attribute__ ((visibility ("hidden"))) CFTypeRef gio_createWindow(CFTypeRef viewRef, const char *title, CGFloat width, CGFloat height, CGFloat minWidth, CGFloat minHeight, CGFloat maxWidth, CGFloat maxHeight);
__attribute__ ((visibility ("hidden"))) void gio_makeKeyAndOrderFront(CFTypeRef windowRef);
__attribute__ ((visibility ("hidden"))) NSPoint gio_cascadeTopLeftFromPoint(CFTypeRef windowRef, NSPoint topLeft);
__attribute__ ((visibility ("hidden"))) void gio_close(CFTypeRef windowRef);
@@ -323,12 +323,21 @@ func NewWindow(win Callbacks, opts *Options) error {
// Window sizes is in unscaled screen coordinates, not device pixels.
width = int(float32(width) / screenScale)
height = int(float32(height) / screenScale)
minWidth := cfg.Px(opts.MinWidth)
minHeight := cfg.Px(opts.MinHeight)
minWidth = int(float32(minWidth) / screenScale)
minHeight = int(float32(minHeight) / screenScale)
maxWidth := cfg.Px(opts.MaxWidth)
maxHeight := cfg.Px(opts.MaxHeight)
maxWidth = int(float32(maxWidth) / screenScale)
maxHeight = int(float32(maxHeight) / screenScale)
title := C.CString(opts.Title)
defer C.free(unsafe.Pointer(title))
errch <- nil
win.SetDriver(w)
w.w = win
w.window = C.gio_createWindow(w.view, title, C.CGFloat(width), C.CGFloat(height))
w.window = C.gio_createWindow(w.view, title, C.CGFloat(width), C.CGFloat(height),
C.CGFloat(minWidth), C.CGFloat(minHeight), C.CGFloat(maxWidth), C.CGFloat(maxHeight))
if nextTopLeft.x == 0 && nextTopLeft.y == 0 {
// cascadeTopLeftFromPoint treats (0, 0) as a no-op,
// and just returns the offset we need for the first window.