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authorManolo Gouy <Manolo>2018-02-09 13:48:22 +0000
committerManolo Gouy <Manolo>2018-02-09 13:48:22 +0000
commitc472d5d8b76e17e4dd537ca20c9bfb144b06189c (patch)
treefbe64110002b5d36127631c37cc5d1bb44f86318 /FL/Fl_Graphics_Driver.H
parentb78b2f7f5f24b98640d31bb8ee7b573703e8cc19 (diff)
Fix fl_read_image() under MacOS platform when GUI is rescaled.
This commit also simplifies the platform-dependent support of fl_read_image(): only Fl_XXX_Screen_Driver::read_win_rectangle() contains platform-specific code to capture pixels from the current window or from an offscreen buffer. Platform-independent function Fl_Screen_Driver::traverse_to_gl_subwindows() captures subwindows that intersect with the area fl_read_image() targets. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12653 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Diffstat (limited to 'FL/Fl_Graphics_Driver.H')
-rw-r--r--FL/Fl_Graphics_Driver.H6
1 files changed, 6 insertions, 0 deletions
diff --git a/FL/Fl_Graphics_Driver.H b/FL/Fl_Graphics_Driver.H
index bd4a82326..27778da2f 100644
--- a/FL/Fl_Graphics_Driver.H
+++ b/FL/Fl_Graphics_Driver.H
@@ -395,6 +395,12 @@ public:
virtual void font_name(int num, const char *name) {}
/** Support function for Fl_Shared_Image drawing */
virtual int draw_scaled(Fl_Image *img, int X, int Y, int W, int H);
+ /** Support function for fl_overlay_rect() and scaled GUI.
+ Defaut implementation may be enough */
+ virtual bool overlay_rect_unscaled();
+ /** Support function for fl_overlay_rect() and scaled GUI.
+ Defaut implementation may be enough */
+ virtual void overlay_rect(int x, int y, int w , int h) { loop(x, y, x+w-1, y, x+w-1, y+h-1, x, y+h-1); }
};
#ifndef FL_DOXYGEN