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03c29e1123
2006-03-21 Anders Carlsson <andersca@imendio.com>
* gdk/quartz/gdkgeometry-quartz.c:
(gdk_window_scroll):
Implement gdk_window_scroll.
81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/* gdkgeometry-quartz.c
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*
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* Copyright (C) 2005 Imendio AB
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include <config.h>
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#include "gdkprivate-quartz.h"
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void
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gdk_window_scroll (GdkWindow *window,
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gint dx,
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gint dy)
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{
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NSRect visible_nsrect;
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GdkRectangle visible_rect, scrolled_rect;
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GdkRegion *visible_region, *scrolled_region;
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GdkRectangle *rects;
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gint n_rects, i;
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GdkWindowObject *private = GDK_WINDOW_OBJECT (window);
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GdkWindowImplQuartz *impl = GDK_WINDOW_IMPL_QUARTZ (private->impl);
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GList *list;
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g_return_if_fail (GDK_IS_WINDOW (window));
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visible_nsrect = [impl->view visibleRect];
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visible_rect.x = visible_nsrect.origin.x;
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visible_rect.y = visible_nsrect.origin.y;
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visible_rect.width = visible_nsrect.size.width;
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visible_rect.height = visible_nsrect.size.height;
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scrolled_rect = visible_rect;
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scrolled_rect.x += dx;
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scrolled_rect.y += dy;
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gdk_rectangle_intersect (&visible_rect, &scrolled_rect, &scrolled_rect);
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visible_region = gdk_region_rectangle (&visible_rect);
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scrolled_region = gdk_region_rectangle (&scrolled_rect);
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gdk_region_subtract (visible_region, scrolled_region);
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[impl->view scrollRect:[impl->view bounds] by:NSMakeSize(dx, dy)];
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gdk_region_get_rectangles (visible_region, &rects, &n_rects);
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for (i = 0; i < n_rects; i++)
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[impl->view setNeedsDisplayInRect:NSMakeRect (rects[i].x, rects[i].y, rects[i].width, rects[i].height)];
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g_free (rects);
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gdk_region_destroy (visible_region);
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gdk_region_destroy (scrolled_region);
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/* Move child windows */
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for (list = private->children; list; list = list->next)
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{
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GdkWindowObject *child = GDK_WINDOW_OBJECT (list->data);
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gdk_window_move (list->data,
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child->x + dx,
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child->y + dy);
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}
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}
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