84cf53d908
and as a "side effect", speed up rendering the image significantly: - disable double buffering on the canvas widget. - implement background clearing ourselves (needed after turning off double buffering). - remove any fiddling with clipping regions on the tool drawing GCs and pull the pause/resume code out of the actual image expose function. - if there are overlay widgets on the canvas, implement double buffering manually to aviod flicker, but do it in a way that keeps pausing/resuming the active tool *outside* the double buffered drawing.
66 lines
3.6 KiB
C
66 lines
3.6 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __GIMP_DISPLAY_SHELL_CALLBACKS_H__
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#define __GIMP_DISPLAY_SHELL_CALLBACKS_H__
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gboolean gimp_display_shell_events (GtkWidget *widget,
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GdkEvent *event,
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GimpDisplayShell *shell);
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void gimp_display_shell_canvas_realize (GtkWidget *widget,
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GimpDisplayShell *shell);
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void gimp_display_shell_canvas_size_allocate (GtkWidget *widget,
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GtkAllocation *alloc,
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GimpDisplayShell *shell);
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gboolean gimp_display_shell_canvas_expose (GtkWidget *widget,
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GdkEventExpose *eevent,
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GimpDisplayShell *shell);
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gboolean gimp_display_shell_canvas_expose_after (GtkWidget *widget,
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GdkEventExpose *eevent,
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GimpDisplayShell *shell);
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gboolean gimp_display_shell_canvas_tool_events (GtkWidget *widget,
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GdkEvent *event,
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GimpDisplayShell *shell);
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gboolean gimp_display_shell_hruler_button_press (GtkWidget *widget,
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GdkEventButton *bevent,
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GimpDisplayShell *shell);
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gboolean gimp_display_shell_vruler_button_press (GtkWidget *widget,
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GdkEventButton *bevent,
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GimpDisplayShell *shell);
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gboolean gimp_display_shell_origin_button_press (GtkWidget *widget,
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GdkEventButton *bevent,
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GimpDisplayShell *shell);
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gboolean gimp_display_shell_quick_mask_button_press (GtkWidget *widget,
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GdkEventButton *bevent,
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GimpDisplayShell *shell);
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void gimp_display_shell_quick_mask_toggled (GtkWidget *widget,
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GimpDisplayShell *shell);
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gboolean gimp_display_shell_nav_button_press (GtkWidget *widget,
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GdkEventButton *bevent,
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GimpDisplayShell *shell);
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gboolean gimp_display_shell_flush_event_queue (GimpDisplayShell *shell);
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#endif /* __GIMP_DISPLAY_SHELL_CALLBACKS_H__ */
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