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app/internal/window: [macOS] introduce serious cascading

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This time without arbitrary offsets and with support for multiple
windows.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2020-06-06 19:27:25 +02:00
parent 4408c2a695
commit 144a5a9cf5
2 changed files with 14 additions and 3 deletions
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app/internal/window/os_macos.go
+6 -2
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@@ -39,7 +39,7 @@ __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"))) void gio_createWindow(CFTypeRef viewRef, const char *title, CGFloat width, CGFloat height);
__attribute__ ((visibility ("hidden"))) NSPoint gio_createWindow(CFTypeRef viewRef, const char *title, CGFloat width, CGFloat height, NSPoint topLeft);
*/
import "C"
@@ -65,6 +65,10 @@ var viewFactory func() C.CFTypeRef
// launched is closed when applicationDidFinishLaunching is called.
var launched = make(chan struct{})
// nextTopLeft is the offset to use for the next window's call to
// cascadeTopLeftFromPoint.
var nextTopLeft C.NSPoint
// mustView is like lookoupView, except that it panics
// if the view isn't mapped.
func mustView(view C.CFTypeRef) *window {
@@ -331,7 +335,7 @@ func newWindow(win Callbacks, opts *Options) (*window, error) {
height := cfg.Px(opts.Height)
title := C.CString(opts.Title)
defer C.free(unsafe.Pointer(title))
C.gio_createWindow(view, title, C.CGFloat(width), C.CGFloat(height))
nextTopLeft = C.gio_createWindow(view, title, C.CGFloat(width), C.CGFloat(height), nextTopLeft)
w.w = win
insertView(view, w)
return w, nil