diff options
| -rw-r--r-- | src/Fl_cocoa.mm | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm index b953a6264..ecd3e0cc9 100644 --- a/src/Fl_cocoa.mm +++ b/src/Fl_cocoa.mm @@ -3346,18 +3346,21 @@ void Fl_Cocoa_Window_Driver::resize(int X, int Y, int W, int H) { This can be called in 3 different instances: 1) When a window is created or resized. - The system sends the drawRect: message to the window's view after having prepared the current - graphics context to draw to this view. Processing of drawRect: sets variable through_drawRect - to YES and calls Fl_Cocoa_Window_Driver::flush(). - Fl_Cocoa_Window_Driver::flush() sets through_Fl_X_flush - to YES and calls Fl_Window::flush() that calls Fl_Window::make_current() that + Before 10.14: The system sends the drawRect: message to the window's view after having prepared the current + graphics context to draw to this view. Processing of drawRect: sets variable through_drawRect + to YES and calls Fl_Cocoa_Window_Driver::flush() that sets through_Fl_X_flush + to YES and calls Fl_Window::flush(). + After 10.14: The system sends the displayLayer: message to the window's view. + Variable through_Fl_X_flush is set to YES and Fl_Window_Driver::flush() is called + which calls Fl_Window::flush(). + Fl_Window::flush() calls Fl_Window::make_current() that uses the window's graphics context. The window's draw() function is then executed. 2) At each round of the FLTK event loop. Fl::flush() is called, that calls Fl_Cocoa_Window_Driver::flush() on each window that needs drawing. - Variable through_Fl_X_flush is set to YES. Fl_Cocoa_Window_Driver::flush() locks the focus to the - view and calls Fl_Window::flush() that calls Fl_Window::make_current() which uses the window's - graphics context. Fl_Window::flush() then runs the window's draw() function. + Fl_Cocoa_Window_Driver::flush() [Before 10.14: locks the focus to the + view and] calls Fl_Window_Driver::flush() that calls Fl_Window::make_current() + and proceeds as in 1). 3) An FLTK application can call Fl_Window::make_current() at any time before it draws to a window. This occurs for instance in the idle callback function of the mandelbrot test program. Variable |