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gimp/app/tools/tool_manager.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpconfig/gimpconfig.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpimage.h"
#include "core/gimptoolgroup.h"
#include "core/gimptoolinfo.h"
#include "core/gimptooloptions.h"
#include "core/gimptoolpreset.h"
#include "display/gimpdisplay.h"
#include "widgets/gimpcairo-wilber.h"
#include "gimpgegltool.h"
#include "gimptool.h"
#include "gimptoolcontrol.h"
#include "gimptransformgridtool.h"
#include "tool_manager.h"
typedef struct _GimpToolManager GimpToolManager;
struct _GimpToolManager
{
Gimp *gimp;
GimpTool *active_tool;
GSList *tool_stack;
GimpToolGroup *active_tool_group;
GimpImage *image;
GQuark image_clean_handler_id;
GQuark image_dirty_handler_id;
GQuark image_saving_handler_id;
};
/* local function prototypes */
static GimpToolManager * tool_manager_get (Gimp *gimp);
static void tool_manager_select_tool (GimpToolManager *tool_manager,
GimpTool *tool);
static void tool_manager_set_active_tool_group (GimpToolManager *tool_manager,
GimpToolGroup *tool_group);
static void tool_manager_tool_changed (GimpContext *user_context,
GimpToolInfo *tool_info,
GimpToolManager *tool_manager);
static void tool_manager_preset_changed (GimpContext *user_context,
GimpToolPreset *preset,
GimpToolManager *tool_manager);
static void tool_manager_image_clean_dirty (GimpImage *image,
GimpDirtyMask dirty_mask,
GimpToolManager *tool_manager);
static void tool_manager_image_saving (GimpImage *image,
GimpToolManager *tool_manager);
static void tool_manager_tool_ancestry_changed (GimpToolInfo *tool_info,
GimpToolManager *tool_manager);
static void tool_manager_group_active_tool_changed (GimpToolGroup *tool_group,
GimpToolManager *tool_manager);
static void tool_manager_image_changed (GimpContext *context,
GimpImage *image,
GimpToolManager *tool_manager);
static void tool_manager_selected_layers_changed (GimpImage *image,
GimpToolManager *tool_manager);
static void tool_manager_active_tool_deactivated (GimpContext *context,
GimpToolManager *tool_manager);
static void tool_manager_cast_spell (GimpToolInfo *tool_info);
static GQuark tool_manager_quark = 0;
/* public functions */
void
tool_manager_init (Gimp *gimp)
{
GimpToolManager *tool_manager;
GimpContext *user_context;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (tool_manager_quark == 0);
tool_manager_quark = g_quark_from_static_string ("gimp-tool-manager");
tool_manager = g_slice_new0 (GimpToolManager);
tool_manager->gimp = gimp;
g_object_set_qdata (G_OBJECT (gimp), tool_manager_quark, tool_manager);
tool_manager->image_clean_handler_id =
gimp_container_add_handler (gimp->images, "clean",
G_CALLBACK (tool_manager_image_clean_dirty),
tool_manager);
tool_manager->image_dirty_handler_id =
gimp_container_add_handler (gimp->images, "dirty",
G_CALLBACK (tool_manager_image_clean_dirty),
tool_manager);
tool_manager->image_saving_handler_id =
gimp_container_add_handler (gimp->images, "saving",
G_CALLBACK (tool_manager_image_saving),
tool_manager);
user_context = gimp_get_user_context (gimp);
g_signal_connect (user_context, "tool-changed",
G_CALLBACK (tool_manager_tool_changed),
tool_manager);
g_signal_connect (user_context, "tool-preset-changed",
G_CALLBACK (tool_manager_preset_changed),
tool_manager);
g_signal_connect (user_context, "image-changed",
G_CALLBACK (tool_manager_image_changed),
tool_manager);
tool_manager_image_changed (user_context,
gimp_context_get_image (user_context),
tool_manager);
tool_manager_selected_layers_changed (gimp_context_get_image (user_context),
tool_manager);
tool_manager_tool_changed (user_context,
gimp_context_get_tool (user_context),
tool_manager);
}
void
tool_manager_exit (Gimp *gimp)
{
GimpToolManager *tool_manager;
GimpContext *user_context;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
g_return_if_fail (tool_manager != NULL);
user_context = gimp_get_user_context (gimp);
g_signal_handlers_disconnect_by_func (user_context,
tool_manager_tool_changed,
tool_manager);
g_signal_handlers_disconnect_by_func (user_context,
tool_manager_preset_changed,
tool_manager);
g_signal_handlers_disconnect_by_func (user_context,
tool_manager_image_changed,
tool_manager);
if (tool_manager->image)
g_signal_handlers_disconnect_by_func (tool_manager->image,
tool_manager_selected_layers_changed,
tool_manager);
gimp_container_remove_handler (gimp->images,
tool_manager->image_clean_handler_id);
gimp_container_remove_handler (gimp->images,
tool_manager->image_dirty_handler_id);
gimp_container_remove_handler (gimp->images,
tool_manager->image_saving_handler_id);
if (tool_manager->active_tool)
{
g_signal_handlers_disconnect_by_func (
tool_manager->active_tool->tool_info,
tool_manager_tool_ancestry_changed,
tool_manager);
g_clear_object (&tool_manager->active_tool);
}
tool_manager_set_active_tool_group (tool_manager, NULL);
g_slice_free (GimpToolManager, tool_manager);
g_object_set_qdata (G_OBJECT (gimp), tool_manager_quark, NULL);
}
GimpTool *
tool_manager_get_active (Gimp *gimp)
{
GimpToolManager *tool_manager;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
tool_manager = tool_manager_get (gimp);
return tool_manager->active_tool;
}
void
tool_manager_push_tool (Gimp *gimp,
GimpTool *tool)
{
GimpToolManager *tool_manager;
GimpDisplay *focus_display = NULL;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (GIMP_IS_TOOL (tool));
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
focus_display = tool_manager->active_tool->focus_display;
tool_manager->tool_stack = g_slist_prepend (tool_manager->tool_stack,
tool_manager->active_tool);
g_object_ref (tool_manager->tool_stack->data);
}
tool_manager_select_tool (tool_manager, tool);
if (focus_display)
tool_manager_focus_display_active (gimp, focus_display);
}
void
tool_manager_pop_tool (Gimp *gimp)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
if (tool_manager->tool_stack)
{
GimpTool *tool = tool_manager->tool_stack->data;
tool_manager->tool_stack = g_slist_remove (tool_manager->tool_stack,
tool);
tool_manager_select_tool (tool_manager, tool);
g_object_unref (tool);
}
}
gboolean
tool_manager_initialize_active (Gimp *gimp,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
g_return_val_if_fail (GIMP_IS_DISPLAY (display), FALSE);
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
GimpTool *tool = tool_manager->active_tool;
if (gimp_tool_initialize (tool, display))
{
GimpImage *image = gimp_display_get_image (display);
g_list_free (tool->drawables);
tool->drawables = gimp_image_get_selected_drawables (image);
return TRUE;
}
}
return FALSE;
}
void
tool_manager_control_active (Gimp *gimp,
GimpToolAction action,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
GimpTool *tool = tool_manager->active_tool;
if (display && gimp_tool_has_display (tool, display))
{
gimp_tool_control (tool, action, display);
}
else if (action == GIMP_TOOL_ACTION_HALT)
{
if (gimp_tool_control_is_active (tool->control))
gimp_tool_control_halt (tool->control);
}
}
}
void
tool_manager_button_press_active (Gimp *gimp,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
gimp_tool_button_press (tool_manager->active_tool,
coords, time, state, press_type,
display);
}
}
void
tool_manager_button_release_active (Gimp *gimp,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
gimp_tool_button_release (tool_manager->active_tool,
coords, time, state,
display);
}
}
void
tool_manager_motion_active (Gimp *gimp,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
gimp_tool_motion (tool_manager->active_tool,
coords, time, state,
display);
}
}
gboolean
tool_manager_key_press_active (Gimp *gimp,
GdkEventKey *kevent,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
return gimp_tool_key_press (tool_manager->active_tool,
kevent,
display);
}
return FALSE;
}
gboolean
tool_manager_key_release_active (Gimp *gimp,
GdkEventKey *kevent,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
return gimp_tool_key_release (tool_manager->active_tool,
kevent,
display);
}
return FALSE;
}
void
tool_manager_focus_display_active (Gimp *gimp,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool &&
! gimp_tool_control_is_active (tool_manager->active_tool->control))
{
gimp_tool_set_focus_display (tool_manager->active_tool,
display);
}
}
void
tool_manager_modifier_state_active (Gimp *gimp,
GdkModifierType state,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool &&
! gimp_tool_control_is_active (tool_manager->active_tool->control))
{
gimp_tool_set_modifier_state (tool_manager->active_tool,
state,
display);
}
}
void
tool_manager_active_modifier_state_active (Gimp *gimp,
GdkModifierType state,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
gimp_tool_set_active_modifier_state (tool_manager->active_tool,
state,
display);
}
}
void
tool_manager_oper_update_active (Gimp *gimp,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool &&
! gimp_tool_control_is_active (tool_manager->active_tool->control))
{
gimp_tool_oper_update (tool_manager->active_tool,
coords, state, proximity,
display);
}
}
void
tool_manager_cursor_update_active (Gimp *gimp,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool &&
! gimp_tool_control_is_active (tool_manager->active_tool->control))
{
gimp_tool_cursor_update (tool_manager->active_tool,
coords, state,
display);
}
}
const gchar *
tool_manager_can_undo_active (Gimp *gimp,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
return gimp_tool_can_undo (tool_manager->active_tool,
display);
}
return NULL;
}
const gchar *
tool_manager_can_redo_active (Gimp *gimp,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
return gimp_tool_can_redo (tool_manager->active_tool,
display);
}
return NULL;
}
gboolean
tool_manager_undo_active (Gimp *gimp,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
return gimp_tool_undo (tool_manager->active_tool,
display);
}
return FALSE;
}
gboolean
tool_manager_redo_active (Gimp *gimp,
GimpDisplay *display)
{
GimpToolManager *tool_manager;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
return gimp_tool_redo (tool_manager->active_tool,
display);
}
return FALSE;
}
GimpUIManager *
tool_manager_get_popup_active (Gimp *gimp,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display,
const gchar **ui_path)
{
GimpToolManager *tool_manager;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
return gimp_tool_get_popup (tool_manager->active_tool,
coords, state,
display,
ui_path);
}
return NULL;
}
/* private functions */
static GimpToolManager *
tool_manager_get (Gimp *gimp)
{
return g_object_get_qdata (G_OBJECT (gimp), tool_manager_quark);
}
static void
tool_manager_select_tool (GimpToolManager *tool_manager,
GimpTool *tool)
{
Gimp *gimp = tool_manager->gimp;
/* reset the previously selected tool, but only if it is not only
* temporarily pushed to the tool stack
*/
if (tool_manager->active_tool)
{
if (! tool_manager->tool_stack ||
tool_manager->active_tool != tool_manager->tool_stack->data)
{
GimpTool *active_tool = tool_manager->active_tool;
GimpDisplay *display;
/* NULL image returns any display (if there is any) */
display = gimp_tool_has_image (active_tool, NULL);
tool_manager_control_active (gimp, GIMP_TOOL_ACTION_HALT, display);
tool_manager_focus_display_active (gimp, NULL);
}
}
g_set_object (&tool_manager->active_tool, tool);
}
static void
tool_manager_set_active_tool_group (GimpToolManager *tool_manager,
GimpToolGroup *tool_group)
{
if (tool_group != tool_manager->active_tool_group)
{
if (tool_manager->active_tool_group)
{
g_signal_handlers_disconnect_by_func (
tool_manager->active_tool_group,
tool_manager_group_active_tool_changed,
tool_manager);
}
g_set_weak_pointer (&tool_manager->active_tool_group, tool_group);
if (tool_manager->active_tool_group)
{
g_signal_connect (
tool_manager->active_tool_group, "active-tool-changed",
G_CALLBACK (tool_manager_group_active_tool_changed),
tool_manager);
}
}
}
static void
tool_manager_tool_changed (GimpContext *user_context,
GimpToolInfo *tool_info,
GimpToolManager *tool_manager)
{
GimpTool *new_tool = NULL;
if (! tool_info)
return;
if (! g_type_is_a (tool_info->tool_type, GIMP_TYPE_TOOL))
{
g_warning ("%s: tool_info->tool_type is no GimpTool subclass",
G_STRFUNC);
return;
}
/* FIXME: gimp_busy HACK */
if (user_context->gimp->busy)
{
if (G_TYPE_FROM_INSTANCE (tool_manager->active_tool) !=
tool_info->tool_type)
{
/* there may be contexts waiting for the user_context's "tool-changed"
* signal, so stop emitting it.
*/
g_signal_stop_emission_by_name (user_context, "tool-changed");
g_signal_handlers_block_by_func (user_context,
tool_manager_tool_changed,
tool_manager);
/* explicitly set the current tool */
gimp_context_set_tool (user_context,
tool_manager->active_tool->tool_info);
g_signal_handlers_unblock_by_func (user_context,
tool_manager_tool_changed,
tool_manager);
}
return;
}
g_return_if_fail (tool_manager->tool_stack == NULL);
if (tool_manager->active_tool)
{
tool_manager_active_tool_deactivated (user_context, tool_manager);
}
g_signal_connect (tool_info, "ancestry-changed",
G_CALLBACK (tool_manager_tool_ancestry_changed),
tool_manager);
tool_manager_tool_ancestry_changed (tool_info, tool_manager);
new_tool = g_object_new (tool_info->tool_type,
"tool-info", tool_info,
NULL);
tool_manager_select_tool (tool_manager, new_tool);
/* Auto-activate any transform or GEGL operation tools */
if (GIMP_IS_TRANSFORM_GRID_TOOL (new_tool) ||
GIMP_IS_GEGL_TOOL (new_tool))
{
GimpDisplay *new_display;
new_display = gimp_context_get_display (user_context);
if (new_display && gimp_display_get_image (new_display))
tool_manager_initialize_active (user_context->gimp, new_display);
}
g_object_unref (new_tool);
if (gimp_widget_animation_enabled ())
{
/* ??? */
tool_manager_cast_spell (tool_info);
}
}
static void
tool_manager_copy_tool_options (GObject *src,
GObject *dest)
{
GList *diff;
diff = gimp_config_diff (src, dest, G_PARAM_READWRITE);
if (diff)
{
GList *list;
g_object_freeze_notify (dest);
for (list = diff; list; list = list->next)
{
GParamSpec *prop_spec = list->data;
if (g_type_is_a (prop_spec->owner_type, GIMP_TYPE_TOOL_OPTIONS) &&
! (prop_spec->flags & G_PARAM_CONSTRUCT_ONLY))
{
GValue value = G_VALUE_INIT;
g_value_init (&value, prop_spec->value_type);
g_object_get_property (src, prop_spec->name, &value);
g_object_set_property (dest, prop_spec->name, &value);
g_value_unset (&value);
}
}
g_object_thaw_notify (dest);
g_list_free (diff);
}
}
static void
tool_manager_preset_changed (GimpContext *user_context,
GimpToolPreset *preset,
GimpToolManager *tool_manager)
{
GimpToolInfo *preset_tool;
if (! preset || user_context->gimp->busy)
return;
preset_tool = gimp_context_get_tool (GIMP_CONTEXT (preset->tool_options));
/* first, select the preset's tool, even if it's already the active
* tool
*/
gimp_context_set_tool (user_context, preset_tool);
/* then, copy the context properties the preset remembers, possibly
* changing some tool options due to the "link brush stuff to brush
* defaults" settings in gimptooloptions.c
*/
gimp_context_copy_properties (GIMP_CONTEXT (preset->tool_options),
user_context,
gimp_tool_preset_get_prop_mask (preset));
/* finally, copy all tool options properties, overwriting any
* changes resulting from setting the context properties above, we
* really want exactly what is in the preset and nothing else
*/
tool_manager_copy_tool_options (G_OBJECT (preset->tool_options),
G_OBJECT (preset_tool->tool_options));
}
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_control_get_dirty_action (tool->control),
display);
}
}
}
static void
tool_manager_image_saving (GimpImage *image,
GimpToolManager *tool_manager)
{
GimpTool *tool = tool_manager->active_tool;
if (tool &&
! gimp_tool_control_get_preserve (tool->control))
{
GimpDisplay *display = gimp_tool_has_image (tool, image);
if (display)
tool_manager_control_active (image->gimp, GIMP_TOOL_ACTION_COMMIT,
display);
}
}
static void
tool_manager_tool_ancestry_changed (GimpToolInfo *tool_info,
GimpToolManager *tool_manager)
{
GimpViewable *parent;
parent = gimp_viewable_get_parent (GIMP_VIEWABLE (tool_info));
if (parent)
{
gimp_tool_group_set_active_tool_info (GIMP_TOOL_GROUP (parent),
tool_info);
}
tool_manager_set_active_tool_group (tool_manager, GIMP_TOOL_GROUP (parent));
}
static void
tool_manager_group_active_tool_changed (GimpToolGroup *tool_group,
GimpToolManager *tool_manager)
{
gimp_context_set_tool (tool_manager->gimp->user_context,
gimp_tool_group_get_active_tool_info (tool_group));
}
static void
tool_manager_image_changed (GimpContext *context,
GimpImage *image,
GimpToolManager *tool_manager)
{
if (tool_manager->image)
{
g_signal_handlers_disconnect_by_func (tool_manager->image,
tool_manager_selected_layers_changed,
tool_manager);
}
tool_manager->image = image;
/* Turn off auto-activated tools when switching images */
if (image &&
(GIMP_IS_TRANSFORM_GRID_TOOL (tool_manager->active_tool) ||
GIMP_IS_GEGL_TOOL (tool_manager->active_tool)))
{
gimp_context_set_tool (context,
tool_manager->active_tool->tool_info);
tool_manager_active_tool_deactivated (context, tool_manager);
}
if (image)
g_signal_connect (tool_manager->image, "selected-layers-changed",
G_CALLBACK (tool_manager_selected_layers_changed),
tool_manager);
}
static void
tool_manager_selected_layers_changed (GimpImage *image,
GimpToolManager *tool_manager)
{
/* Re-activate transform tools when changing selected layers */
if (image &&
(GIMP_IS_TRANSFORM_GRID_TOOL (tool_manager->active_tool) ||
GIMP_IS_GEGL_TOOL (tool_manager->active_tool)))
{
gimp_context_set_tool (tool_manager->gimp->user_context,
tool_manager->active_tool->tool_info);
tool_manager_tool_changed (tool_manager->gimp->user_context,
gimp_context_get_tool (
tool_manager->gimp->user_context),
tool_manager);
}
}
static void
tool_manager_active_tool_deactivated (GimpContext *context,
GimpToolManager *tool_manager)
{
GimpDisplay *display;
display = gimp_tool_has_image (tool_manager->active_tool, NULL);
/* NULL image returns any display (if there is any) */
if (display)
tool_manager_control_active (context->gimp, GIMP_TOOL_ACTION_COMMIT,
display);
/* commit the old tool's operation before creating the new tool
* because creating a tool might mess with the old tool's
* options (old and new tool might be the same)
*/
g_signal_handlers_disconnect_by_func (tool_manager->active_tool->tool_info,
tool_manager_tool_ancestry_changed,
tool_manager);
}
static void
tool_manager_cast_spell (GimpToolInfo *tool_info)
{
typedef struct
{
const gchar *sequence;
GCallback func;
} Spell;
static const Spell spells[] =
{
{ .sequence = "gimp-warp-tool\0"
"gimp-iscissors-tool\0"
"gimp-gradient-tool\0"
"gimp-vector-tool\0"
"gimp-ellipse-select-tool\0"
"gimp-rect-select-tool\0",
.func = gimp_cairo_wilber_toggle_pointer_eyes
}
};
static const gchar *spell_progress[G_N_ELEMENTS (spells)];
const gchar *tool_name;
gint i;
tool_name = gimp_object_get_name (GIMP_OBJECT (tool_info));
for (i = 0; i < G_N_ELEMENTS (spells); i++)
{
if (! spell_progress[i])
spell_progress[i] = spells[i].sequence;
while (spell_progress[i])
{
if (! strcmp (tool_name, spell_progress[i]))
{
spell_progress[i] += strlen (spell_progress[i]) + 1;
if (! *spell_progress[i])
{
spell_progress[i] = NULL;
spells[i].func ();
}
break;
}
else
{
if (spell_progress[i] == spells[i].sequence)
spell_progress[i] = NULL;
else
spell_progress[i] = spells[i].sequence;
}
}
}
}
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