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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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpconfig/gimpconfig.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimplist.h"
#include "core/gimpimage.h"
#include "core/gimptoolinfo.h"
#include "core/gimptoolpreset.h"
#include "paint/gimppaintoptions.h"
#include "display/gimpdisplay.h"
#include "gimptool.h"
#include "gimptoolcontrol.h"
#include "tool_manager.h"
typedef struct _GimpToolManager GimpToolManager;
struct _GimpToolManager
{
GimpTool *active_tool;
GimpPaintOptions *shared_paint_options;
GSList *tool_stack;
GQuark image_clean_handler_id;
GQuark image_dirty_handler_id;
};
/* local function prototypes */
static GimpToolManager * tool_manager_get (Gimp *gimp);
static void tool_manager_set (Gimp *gimp,
GimpToolManager *tool_manager);
static void tool_manager_select_tool (Gimp *gimp,
GimpTool *tool);
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_connect_options (GimpToolManager *tool_manager,
GimpContext *user_context,
GimpToolInfo *tool_info);
static void tool_manager_disconnect_options (GimpToolManager *tool_manager,
GimpContext *user_context,
GimpToolInfo *tool_info);
/* public functions */
void
tool_manager_init (Gimp *gimp)
{
GimpToolManager *tool_manager;
GimpContext *user_context;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = g_slice_new0 (GimpToolManager);
tool_manager->active_tool = NULL;
tool_manager->tool_stack = NULL;
tool_manager->image_clean_handler_id = 0;
tool_manager->image_dirty_handler_id = 0;
tool_manager_set (gimp, 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);
user_context = gimp_get_user_context (gimp);
tool_manager->shared_paint_options = g_object_new (GIMP_TYPE_PAINT_OPTIONS,
"gimp", gimp,
"name", "tool-manager-shared-paint-options",
NULL);
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);
}
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);
tool_manager_set (gimp, 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);
gimp_container_remove_handler (gimp->images,
tool_manager->image_clean_handler_id);
gimp_container_remove_handler (gimp->images,
tool_manager->image_dirty_handler_id);
if (tool_manager->active_tool)
g_object_unref (tool_manager->active_tool);
if (tool_manager->shared_paint_options)
g_object_unref (tool_manager->shared_paint_options);
g_slice_free (GimpToolManager, tool_manager);
}
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 (gimp, 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 (gimp, 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);
tool->drawable = gimp_image_get_active_drawable (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_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_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_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_cursor_update (tool_manager->active_tool,
coords, state,
display);
}
}
const gchar *
tool_manager_get_undo_desc_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_get_undo_desc (tool_manager->active_tool,
display);
}
return NULL;
}
const gchar *
tool_manager_get_redo_desc_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_get_redo_desc (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 GQuark tool_manager_quark = 0;
static GimpToolManager *
tool_manager_get (Gimp *gimp)
{
if (! tool_manager_quark)
tool_manager_quark = g_quark_from_static_string ("gimp-tool-manager");
return g_object_get_qdata (G_OBJECT (gimp), tool_manager_quark);
}
static void
tool_manager_set (Gimp *gimp,
GimpToolManager *tool_manager)
{
if (! tool_manager_quark)
tool_manager_quark = g_quark_from_static_string ("gimp-tool-manager");
g_object_set_qdata (G_OBJECT (gimp), tool_manager_quark, tool_manager);
}
static void
tool_manager_select_tool (Gimp *gimp,
GimpTool *tool)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (GIMP_IS_TOOL (tool));
tool_manager = tool_manager_get (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_object_unref (tool_manager->active_tool);
}
tool_manager->active_tool = g_object_ref (tool);
}
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)
{
/* 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");
if (G_TYPE_FROM_INSTANCE (tool_manager->active_tool) !=
tool_info->tool_type)
{
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;
}
if (tool_manager->active_tool)
{
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);
/* 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)
*/
if (display)
tool_manager_control_active (user_context->gimp, GIMP_TOOL_ACTION_COMMIT,
display);
/* disconnect the old tool's context */
if (active_tool->tool_info)
tool_manager_disconnect_options (tool_manager, user_context,
active_tool->tool_info);
}
new_tool = g_object_new (tool_info->tool_type,
"tool-info", tool_info,
NULL);
/* connect the new tool's context */
tool_manager_connect_options (tool_manager, user_context, tool_info);
tool_manager_select_tool (user_context->gimp, new_tool);
g_object_unref (new_tool);
}
static void
tool_manager_preset_changed (GimpContext *user_context,
GimpToolPreset *preset,
GimpToolManager *tool_manager)
{
GimpToolInfo *preset_tool;
gchar *options_name;
gboolean tool_change = FALSE;
if (! preset || user_context->gimp->busy)
return;
preset_tool = gimp_context_get_tool (GIMP_CONTEXT (preset->tool_options));
if (preset_tool != gimp_context_get_tool (user_context))
tool_change = TRUE;
if (! tool_change)
tool_manager_disconnect_options (tool_manager, user_context, preset_tool);
/* save the name, we don't want to overwrite it */
options_name = g_strdup (gimp_object_get_name (preset_tool->tool_options));
gimp_config_copy (GIMP_CONFIG (preset->tool_options),
GIMP_CONFIG (preset_tool->tool_options), 0);
/* restore the saved name */
gimp_object_take_name (GIMP_OBJECT (preset_tool->tool_options), options_name);
if (tool_change)
gimp_context_set_tool (user_context, preset_tool);
else
tool_manager_connect_options (tool_manager, user_context, preset_tool);
gimp_context_copy_properties (GIMP_CONTEXT (preset->tool_options),
user_context,
gimp_tool_preset_get_prop_mask (preset));
if (GIMP_IS_PAINT_OPTIONS (preset->tool_options))
{
GimpToolOptions *src = preset->tool_options;
GimpToolOptions *dest = tool_manager->active_tool->tool_info->tool_options;
/* copy various data objects' additional tool options again
* manually, they might have been overwritten by e.g. the "link
* brush stuff to brush defaults" logic in
* gimptooloptions-gui.c
*/
if (preset->use_brush)
gimp_paint_options_copy_brush_props (GIMP_PAINT_OPTIONS (src),
GIMP_PAINT_OPTIONS (dest));
if (preset->use_dynamics)
gimp_paint_options_copy_dynamics_props (GIMP_PAINT_OPTIONS (src),
GIMP_PAINT_OPTIONS (dest));
if (preset->use_gradient)
gimp_paint_options_copy_gradient_props (GIMP_PAINT_OPTIONS (src),
GIMP_PAINT_OPTIONS (dest));
}
}
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);
}
}
static void
tool_manager_connect_options (GimpToolManager *tool_manager,
GimpContext *user_context,
GimpToolInfo *tool_info)
{
if (tool_info->context_props)
{
GimpCoreConfig *config = user_context->gimp->config;
GimpContextPropMask global_props = 0;
/* FG and BG are always shared between all tools */
global_props |= GIMP_CONTEXT_PROP_MASK_FOREGROUND;
global_props |= GIMP_CONTEXT_PROP_MASK_BACKGROUND;
if (config->global_brush)
global_props |= GIMP_CONTEXT_PROP_MASK_BRUSH;
if (config->global_dynamics)
global_props |= GIMP_CONTEXT_PROP_MASK_DYNAMICS;
if (config->global_pattern)
global_props |= GIMP_CONTEXT_PROP_MASK_PATTERN;
if (config->global_palette)
global_props |= GIMP_CONTEXT_PROP_MASK_PALETTE;
if (config->global_gradient)
global_props |= GIMP_CONTEXT_PROP_MASK_GRADIENT;
if (config->global_font)
global_props |= GIMP_CONTEXT_PROP_MASK_FONT;
gimp_context_copy_properties (GIMP_CONTEXT (tool_info->tool_options),
user_context,
tool_info->context_props & ~global_props);
gimp_context_set_parent (GIMP_CONTEXT (tool_info->tool_options),
user_context);
if (GIMP_IS_PAINT_OPTIONS (tool_info->tool_options))
{
if (config->global_brush)
gimp_paint_options_copy_brush_props (tool_manager->shared_paint_options,
GIMP_PAINT_OPTIONS (tool_info->tool_options));
if (config->global_dynamics)
gimp_paint_options_copy_dynamics_props (tool_manager->shared_paint_options,
GIMP_PAINT_OPTIONS (tool_info->tool_options));
if (config->global_gradient)
gimp_paint_options_copy_gradient_props (tool_manager->shared_paint_options,
GIMP_PAINT_OPTIONS (tool_info->tool_options));
}
}
}
static void
tool_manager_disconnect_options (GimpToolManager *tool_manager,
GimpContext *user_context,
GimpToolInfo *tool_info)
{
if (tool_info->context_props)
{
if (GIMP_IS_PAINT_OPTIONS (tool_info->tool_options))
{
/* Storing is unconditional, because the user may turn on
* brush sharing mid use
*/
gimp_paint_options_copy_brush_props (GIMP_PAINT_OPTIONS (tool_info->tool_options),
tool_manager->shared_paint_options);
gimp_paint_options_copy_dynamics_props (GIMP_PAINT_OPTIONS (tool_info->tool_options),
tool_manager->shared_paint_options);
gimp_paint_options_copy_gradient_props (GIMP_PAINT_OPTIONS (tool_info->tool_options),
tool_manager->shared_paint_options);
}
gimp_context_set_parent (GIMP_CONTEXT (tool_info->tool_options), NULL);
}
}
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