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Cocoa: Implement GLFW_TRANSPARENT

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This is an extract of a commit, minimally edited to ensure it compiles.

Closes #663.
Related to #197.
This commit is contained in:
Cem Karan 2015-12-16 16:28:20 -05:00 committed by Camilla Löwy
parent 51f0cd3b51
commit ac009a5f5c
2 changed files with 17 additions and 1 deletions
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12
src/cocoa_window.m
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@ -413,7 +413,11 @@ static const NSRange kEmptyRange = { NSNotFound, 0 };
- (BOOL)isOpaque - (BOOL)isOpaque
{ {
return YES; // Set to NO even if alphaMask is not used;
// The NSView/GLFWContentView does not need to be opaque anyway,
// and to avoid keeping track of alphaMask inside the NSView we
// just return NO here instead.
return NO;
} }
- (BOOL)canBecomeKeyView - (BOOL)canBecomeKeyView
@ -1081,6 +1085,12 @@ static GLFWbool createNativeWindow(_GLFWwindow* window,
if (wndconfig->ns.retina) if (wndconfig->ns.retina)
[window->ns.view setWantsBestResolutionOpenGLSurface:YES]; [window->ns.view setWantsBestResolutionOpenGLSurface:YES];
if (window->transparent)
{
[window->ns.object setOpaque:NO];
[window->ns.object setBackgroundColor:[NSColor clearColor]];
}
[window->ns.object setContentView:window->ns.view]; [window->ns.object setContentView:window->ns.view];
[window->ns.object makeFirstResponder:window->ns.view]; [window->ns.object makeFirstResponder:window->ns.view];
[window->ns.object setTitle:[NSString stringWithUTF8String:wndconfig->title]]; [window->ns.object setTitle:[NSString stringWithUTF8String:wndconfig->title]];

6
src/nsgl_context.m
View File

@ -296,6 +296,12 @@ GLFWbool _glfwCreateContextNSGL(_GLFWwindow* window,
return GLFW_FALSE; return GLFW_FALSE;
} }
if (window->transparent)
{
GLint opaque = 0;
[window->context.nsgl.object setValues:&opaque forParameter:NSOpenGLCPSurfaceOpacity];
}
[window->context.nsgl.object setView:window->ns.view]; [window->context.nsgl.object setView:window->ns.view];
window->context.makeCurrent = makeContextCurrentNSGL; window->context.makeCurrent = makeContextCurrentNSGL;