mirror of https://github.com/GNOME/gimp.git
592 lines
16 KiB
C
592 lines
16 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 2 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libgimpwidgets/gimpwidgets.h"
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#include "tools-types.h"
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#include "core/gimp.h"
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#include "core/gimpcontainer.h"
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#include "core/gimpcontext.h"
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#include "core/gimplist.h"
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#include "core/gimpimage.h"
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#include "core/gimptoolinfo.h"
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#include "config/gimpcoreconfig.h"
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#include "display/gimpdisplay.h"
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#include "gimptool.h"
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#include "gimptoolcontrol.h"
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#include "tool_manager.h"
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typedef struct _GimpToolManager GimpToolManager;
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struct _GimpToolManager
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{
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GimpTool *active_tool;
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GSList *tool_stack;
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GQuark image_clean_handler_id;
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GQuark image_dirty_handler_id;
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};
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/* local function prototypes */
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static GimpToolManager * tool_manager_get (Gimp *gimp);
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static void tool_manager_set (Gimp *gimp,
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GimpToolManager *tool_manager);
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static void tool_manager_tool_changed (GimpContext *user_context,
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GimpToolInfo *tool_info,
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gpointer data);
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static void tool_manager_image_clean_dirty (GimpImage *image,
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GimpDirtyMask dirty_mask,
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GimpToolManager *tool_manager);
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/* public functions */
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void
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tool_manager_init (Gimp *gimp)
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{
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GimpToolManager *tool_manager;
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GimpContext *user_context;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = g_slice_new0 (GimpToolManager);
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tool_manager->active_tool = NULL;
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tool_manager->tool_stack = NULL;
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tool_manager->image_clean_handler_id = 0;
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tool_manager->image_dirty_handler_id = 0;
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tool_manager_set (gimp, tool_manager);
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tool_manager->image_clean_handler_id =
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gimp_container_add_handler (gimp->images, "clean",
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G_CALLBACK (tool_manager_image_clean_dirty),
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tool_manager);
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tool_manager->image_dirty_handler_id =
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gimp_container_add_handler (gimp->images, "dirty",
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G_CALLBACK (tool_manager_image_clean_dirty),
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tool_manager);
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user_context = gimp_get_user_context (gimp);
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g_signal_connect (user_context, "tool-changed",
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G_CALLBACK (tool_manager_tool_changed),
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tool_manager);
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}
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void
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tool_manager_exit (Gimp *gimp)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = tool_manager_get (gimp);
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tool_manager_set (gimp, NULL);
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gimp_container_remove_handler (gimp->images,
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tool_manager->image_clean_handler_id);
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gimp_container_remove_handler (gimp->images,
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tool_manager->image_dirty_handler_id);
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if (tool_manager->active_tool)
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g_object_unref (tool_manager->active_tool);
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g_slice_free (GimpToolManager, tool_manager);
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}
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GimpTool *
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tool_manager_get_active (Gimp *gimp)
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{
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GimpToolManager *tool_manager;
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g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
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tool_manager = tool_manager_get (gimp);
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return tool_manager->active_tool;
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}
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void
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tool_manager_select_tool (Gimp *gimp,
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GimpTool *tool)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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g_return_if_fail (GIMP_IS_TOOL (tool));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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GimpTool *active_tool = tool_manager->active_tool;
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GimpDisplay *display;
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/* NULL image returns any display (if there is any) */
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display = gimp_tool_has_image (active_tool, NULL);
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tool_manager_control_active (gimp, GIMP_TOOL_ACTION_HALT, display);
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tool_manager_focus_display_active (gimp, NULL);
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g_object_unref (tool_manager->active_tool);
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}
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tool_manager->active_tool = g_object_ref (tool);
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}
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void
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tool_manager_push_tool (Gimp *gimp,
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GimpTool *tool)
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{
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GimpToolManager *tool_manager;
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GimpDisplay *focus_display = NULL;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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g_return_if_fail (GIMP_IS_TOOL (tool));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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focus_display = tool_manager->active_tool->focus_display;
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tool_manager->tool_stack = g_slist_prepend (tool_manager->tool_stack,
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tool_manager->active_tool);
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g_object_ref (tool_manager->tool_stack->data);
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}
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tool_manager_select_tool (gimp, tool);
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if (focus_display)
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tool_manager_focus_display_active (gimp, focus_display);
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}
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void
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tool_manager_pop_tool (Gimp *gimp)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->tool_stack)
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{
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GimpTool *tool = tool_manager->tool_stack->data;
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GimpDisplay *focus_display = NULL;
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if (tool_manager->active_tool)
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focus_display = tool_manager->active_tool->focus_display;
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tool_manager->tool_stack = g_slist_remove (tool_manager->tool_stack,
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tool);
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tool_manager_select_tool (gimp, tool);
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g_object_unref (tool);
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if (focus_display)
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tool_manager_focus_display_active (gimp, focus_display);
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}
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}
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gboolean
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tool_manager_initialize_active (Gimp *gimp,
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GimpDisplay *display)
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{
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GimpToolManager *tool_manager;
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g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
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g_return_val_if_fail (GIMP_IS_DISPLAY (display), FALSE);
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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GimpTool *tool = tool_manager->active_tool;
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if (gimp_tool_initialize (tool, display))
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{
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tool->drawable = gimp_image_get_active_drawable (display->image);
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return TRUE;
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}
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}
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return FALSE;
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}
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void
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tool_manager_control_active (Gimp *gimp,
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GimpToolAction action,
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GimpDisplay *display)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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GimpTool *tool = tool_manager->active_tool;
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if (display && gimp_tool_has_display (tool, display))
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{
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gimp_tool_control (tool, action, display);
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}
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else if (action == GIMP_TOOL_ACTION_HALT)
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{
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if (gimp_tool_control_is_active (tool->control))
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gimp_tool_control_halt (tool->control);
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}
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}
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}
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void
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tool_manager_button_press_active (Gimp *gimp,
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GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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gimp_tool_button_press (tool_manager->active_tool,
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coords, time, state,
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display);
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}
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}
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void
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tool_manager_button_release_active (Gimp *gimp,
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GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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gimp_tool_button_release (tool_manager->active_tool,
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coords, time, state,
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display);
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}
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}
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void
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tool_manager_motion_active (Gimp *gimp,
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GimpCoords *coords,
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guint32 time,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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gimp_tool_motion (tool_manager->active_tool,
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coords, time, state,
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display);
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}
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}
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gboolean
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tool_manager_key_press_active (Gimp *gimp,
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GdkEventKey *kevent,
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GimpDisplay *display)
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{
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GimpToolManager *tool_manager;
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g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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return gimp_tool_key_press (tool_manager->active_tool,
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kevent,
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display);
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}
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return FALSE;
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}
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void
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tool_manager_focus_display_active (Gimp *gimp,
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GimpDisplay *display)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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gimp_tool_set_focus_display (tool_manager->active_tool,
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display);
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}
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}
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void
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tool_manager_modifier_state_active (Gimp *gimp,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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gimp_tool_set_modifier_state (tool_manager->active_tool,
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state,
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display);
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}
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}
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void
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tool_manager_active_modifier_state_active (Gimp *gimp,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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gimp_tool_set_active_modifier_state (tool_manager->active_tool,
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state,
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display);
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}
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}
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void
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tool_manager_oper_update_active (Gimp *gimp,
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GimpCoords *coords,
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GdkModifierType state,
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gboolean proximity,
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GimpDisplay *display)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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gimp_tool_oper_update (tool_manager->active_tool,
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coords, state, proximity,
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display);
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}
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}
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void
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tool_manager_cursor_update_active (Gimp *gimp,
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GimpCoords *coords,
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GdkModifierType state,
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GimpDisplay *display)
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{
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GimpToolManager *tool_manager;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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tool_manager = tool_manager_get (gimp);
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if (tool_manager->active_tool)
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{
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gimp_tool_cursor_update (tool_manager->active_tool,
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coords, state,
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display);
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}
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}
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/* private functions */
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static GQuark tool_manager_quark = 0;
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static GimpToolManager *
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tool_manager_get (Gimp *gimp)
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{
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if (! tool_manager_quark)
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tool_manager_quark = g_quark_from_static_string ("gimp-tool-manager");
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return g_object_get_qdata (G_OBJECT (gimp), tool_manager_quark);
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}
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static void
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tool_manager_set (Gimp *gimp,
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GimpToolManager *tool_manager)
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{
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if (! tool_manager_quark)
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tool_manager_quark = g_quark_from_static_string ("gimp-tool-manager");
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g_object_set_qdata (G_OBJECT (gimp), tool_manager_quark, tool_manager);
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}
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static void
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tool_manager_tool_changed (GimpContext *user_context,
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GimpToolInfo *tool_info,
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gpointer data)
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{
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GimpToolManager *tool_manager = data;
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GimpTool *new_tool = NULL;
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if (! tool_info)
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return;
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/* FIXME: gimp_busy HACK */
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if (user_context->gimp->busy)
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{
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/* there may be contexts waiting for the user_context's "tool-changed"
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* signal, so stop emitting it.
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*/
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g_signal_stop_emission_by_name (user_context, "tool-changed");
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if (G_TYPE_FROM_INSTANCE (tool_manager->active_tool) !=
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tool_info->tool_type)
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{
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g_signal_handlers_block_by_func (user_context,
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tool_manager_tool_changed,
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data);
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/* explicitly set the current tool */
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gimp_context_set_tool (user_context,
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tool_manager->active_tool->tool_info);
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g_signal_handlers_unblock_by_func (user_context,
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tool_manager_tool_changed,
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data);
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}
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return;
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}
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if (g_type_is_a (tool_info->tool_type, GIMP_TYPE_TOOL))
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{
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new_tool = g_object_new (tool_info->tool_type,
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"tool-info", tool_info,
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NULL);
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}
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else
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{
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g_warning ("%s: tool_info->tool_type is no GimpTool subclass",
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G_STRFUNC);
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return;
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}
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/* disconnect the old tool's context */
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if (tool_manager->active_tool &&
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tool_manager->active_tool->tool_info &&
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tool_manager->active_tool->tool_info->context_props)
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{
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GimpToolInfo *old_tool_info = tool_manager->active_tool->tool_info;
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gimp_context_set_parent (GIMP_CONTEXT (old_tool_info->tool_options),
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NULL);
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}
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/* connect the new tool's context */
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if (tool_info->context_props)
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{
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GimpCoreConfig *config = user_context->gimp->config;
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GimpContextPropMask global_props = 0;
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/* FG and BG are always shared between all tools */
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global_props |= GIMP_CONTEXT_FOREGROUND_MASK;
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global_props |= GIMP_CONTEXT_BACKGROUND_MASK;
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if (config->global_brush)
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global_props |= GIMP_CONTEXT_BRUSH_MASK;
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if (config->global_pattern)
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global_props |= GIMP_CONTEXT_PATTERN_MASK;
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if (config->global_palette)
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global_props |= GIMP_CONTEXT_PALETTE_MASK;
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if (config->global_gradient)
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global_props |= GIMP_CONTEXT_GRADIENT_MASK;
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if (config->global_font)
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global_props |= GIMP_CONTEXT_FONT_MASK;
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gimp_context_copy_properties (GIMP_CONTEXT (tool_info->tool_options),
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user_context,
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tool_info->context_props & ~global_props);
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gimp_context_set_parent (GIMP_CONTEXT (tool_info->tool_options),
|
|
user_context);
|
|
}
|
|
|
|
tool_manager_select_tool (user_context->gimp, new_tool);
|
|
|
|
g_object_unref (new_tool);
|
|
}
|
|
|
|
static void
|
|
tool_manager_image_clean_dirty (GimpImage *image,
|
|
GimpDirtyMask dirty_mask,
|
|
GimpToolManager *tool_manager)
|
|
{
|
|
GimpTool *tool = tool_manager->active_tool;
|
|
|
|
if (tool &&
|
|
! gimp_tool_control_get_preserve (tool->control) &&
|
|
(gimp_tool_control_get_dirty_mask (tool->control) & dirty_mask))
|
|
{
|
|
GimpDisplay *display = gimp_tool_has_image (tool, image);
|
|
|
|
if (display)
|
|
tool_manager_control_active (image->gimp, GIMP_TOOL_ACTION_HALT,
|
|
display);
|
|
}
|
|
}
|