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gdk/quartz/gdkgeometry-quartz.c

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                                      gint       dx,

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                                      gint       dy)

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{

 

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  GdkWindowObject *private = (GdkWindowObject *)window;

 

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  GdkWindowImplQuartz *impl = (GdkWindowImplQuartz *)private->impl;

 

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  int i, n_rects;

 

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  GdkRegion *intersection;

 

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  GdkRectangle *rects;

 

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  /* We will intersect the known region that needs display with the given

 

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   * area.  This intersection will be translated by dx, dy.  For the end

 

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   * result, we will also set that it needs display.

 

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   */

 

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  if (!impl->needs_display_region)

 

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    return;

 

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  intersection = gdk_region_copy (impl->needs_display_region);

 

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  gdk_region_intersect (intersection, area);

 

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  gdk_region_offset (intersection, dx, dy);

 

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  gdk_region_get_rectangles (intersection, &rects, &n_rects);

 

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  for (i = 0; i < n_rects; i++)

 

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    _gdk_quartz_window_set_needs_display_in_rect (window, &rects[i]);

 

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  g_free (rects);

 

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  gdk_region_destroy (intersection);

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}

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gboolean

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