diff options
Diffstat (limited to 'src/gui/desktop.c')
| -rw-r--r-- | src/gui/desktop.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/gui/desktop.c b/src/gui/desktop.c index 6592b52..ad4aad9 100644 --- a/src/gui/desktop.c +++ b/src/gui/desktop.c @@ -28,6 +28,7 @@ void desktop_init( desktop_t *desktop, const int w, const int h, const vga_color desktop->mouse_x = w / 2; desktop->mouse_y = h / 2; + desktop->needs_redrawing = true; desktop->base.base.vtable = (widget_vtable_t *)&desktop_vtable; desktop->base.vtable = (composite_widget_vtable_t *)&desktop_vtable; @@ -38,6 +39,10 @@ void desktop_draw( void *obj, graphics_context_t *context ) { desktop_t *desktop = obj; + if( !desktop->needs_redrawing ) { + return; + } + vga_clear_screen( context, desktop->base.base.background_color ); composite_widget_draw( obj, context ); @@ -56,16 +61,26 @@ void desktop_draw( void *obj, graphics_context_t *context ) vga_set_pixel( context, desktop->mouse_x, desktop->mouse_y + i, VGA_COLOR_WHITE ); } } + + desktop->needs_redrawing = false; } void desktop_on_mouse_down( void *obj, const int x, const int y ) { + desktop_t *desktop = obj; + composite_widget_on_mouse_down( obj, x, y ); + + desktop->needs_redrawing = true; } void desktop_on_mouse_up( void *obj, const int x, const int y ) { + desktop_t *desktop = obj; + composite_widget_on_mouse_up( obj, x, y ); + + desktop->needs_redrawing = true; } void desktop_on_mouse_move( void *obj, const int old_x, const int old_y, const int x, const int y ) @@ -76,4 +91,6 @@ void desktop_on_mouse_move( void *obj, const int old_x, const int old_y, const i desktop->mouse_y = y; composite_widget_on_mouse_move( obj, old_x, old_y, x, y ); + + desktop->needs_redrawing = true; } |