gimp/app/tools/tool_manager.c

564 lines
15 KiB
C

/* The GIMP -- an 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.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 "config/gimpcoreconfig.h"
#include "display/gimpdisplay.h"
#include "gimpdrawtool.h"
#include "gimptoolcontrol.h"
#include "tool_manager.h"
#include "gimp-intl.h"
typedef struct _GimpToolManager GimpToolManager;
struct _GimpToolManager
{
GimpTool *active_tool;
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_tool_changed (GimpContext *user_context,
GimpToolInfo *tool_info,
gpointer data);
static void tool_manager_image_clean_dirty (GimpImage *gimage,
GimpDirtyMask dirty_mask,
GimpToolManager *tool_manager);
/* 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_new0 (GimpToolManager, 1);
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);
g_signal_connect (user_context, "tool_changed",
G_CALLBACK (tool_manager_tool_changed),
tool_manager);
}
void
tool_manager_exit (Gimp *gimp)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
tool_manager_set (gimp, NULL);
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);
g_free (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_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);
if (tool_manager->active_tool)
{
GimpDisplay *gdisp = tool_manager->active_tool->gdisp;
if (! gdisp && GIMP_IS_DRAW_TOOL (tool_manager->active_tool))
gdisp = GIMP_DRAW_TOOL (tool_manager->active_tool)->gdisp;
if (gdisp)
tool_manager_control_active (gimp, HALT, gdisp);
tool_manager_focus_display_active (gimp, NULL);
g_object_unref (tool_manager->active_tool);
}
tool_manager->active_tool = g_object_ref (tool);
}
void
tool_manager_push_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);
if (tool_manager->active_tool)
{
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);
}
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)
{
tool_manager_select_tool (gimp,
GIMP_TOOL (tool_manager->tool_stack->data));
g_object_unref (tool_manager->tool_stack->data);
tool_manager->tool_stack = g_slist_remove (tool_manager->tool_stack,
tool_manager->active_tool);
}
}
gboolean
tool_manager_initialize_active (Gimp *gimp,
GimpDisplay *gdisp)
{
GimpToolManager *tool_manager;
GimpTool *tool;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
g_return_val_if_fail (GIMP_IS_DISPLAY (gdisp), FALSE);
tool_manager = tool_manager_get (gimp);
if (tool_manager->active_tool)
{
tool = tool_manager->active_tool;
if (gimp_tool_initialize (tool, gdisp))
{
tool->drawable = gimp_image_active_drawable (gdisp->gimage);
return TRUE;
}
}
return FALSE;
}
void
tool_manager_control_active (Gimp *gimp,
GimpToolAction action,
GimpDisplay *gdisp)
{
GimpToolManager *tool_manager;
g_return_if_fail (GIMP_IS_GIMP (gimp));
tool_manager = tool_manager_get (gimp);
if (! tool_manager->active_tool)
return;
if (gdisp && (tool_manager->active_tool->gdisp == gdisp ||
(GIMP_IS_DRAW_TOOL (tool_manager->active_tool) &&
GIMP_DRAW_TOOL (tool_manager->active_tool)->gdisp == gdisp)))
{
gimp_tool_control (tool_manager->active_tool, action, gdisp);
}
else if (action == HALT)
{
if (gimp_tool_control_is_active (tool_manager->active_tool->control))
gimp_tool_control_halt (tool_manager->active_tool->control);
}
}
void
tool_manager_button_press_active (Gimp *gimp,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp)
{
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,
gdisp);
}
}
void
tool_manager_button_release_active (Gimp *gimp,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp)
{
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,
gdisp);
}
}
void
tool_manager_motion_active (Gimp *gimp,
GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *gdisp)
{
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,
gdisp);
}
}
gboolean
tool_manager_key_press_active (Gimp *gimp,
GdkEventKey *kevent,
GimpDisplay *gdisp)
{
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,
gdisp);
}
return FALSE;
}
void
tool_manager_focus_display_active (Gimp *gimp,
GimpDisplay *gdisp)
{
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,
gdisp);
}
}
void
tool_manager_modifier_state_active (Gimp *gimp,
GdkModifierType state,
GimpDisplay *gdisp)
{
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,
gdisp);
}
}
void
tool_manager_oper_update_active (Gimp *gimp,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp)
{
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,
gdisp);
}
}
void
tool_manager_cursor_update_active (Gimp *gimp,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp)
{
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,
gdisp);
}
}
/* 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_tool_changed (GimpContext *user_context,
GimpToolInfo *tool_info,
gpointer data)
{
GimpToolManager *tool_manager = data;
GimpTool *new_tool = NULL;
if (! tool_info)
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,
data);
/* 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,
data);
}
return;
}
if (g_type_is_a (tool_info->tool_type, GIMP_TYPE_TOOL))
{
new_tool = g_object_new (tool_info->tool_type,
"tool-info", tool_info,
NULL);
}
else
{
g_warning ("%s: tool_info->tool_type is no GimpTool subclass",
G_STRFUNC);
return;
}
/* disconnect the old tool's context */
if (tool_manager->active_tool &&
tool_manager->active_tool->tool_info &&
tool_manager->active_tool->tool_info->context_props)
{
GimpToolInfo *old_tool_info = tool_manager->active_tool->tool_info;
gimp_context_set_parent (GIMP_CONTEXT (old_tool_info->tool_options), NULL);
}
/* connect the new tool's context */
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_FOREGROUND_MASK;
global_props |= GIMP_CONTEXT_BACKGROUND_MASK;
if (config->global_brush)
global_props |= GIMP_CONTEXT_BRUSH_MASK;
if (config->global_pattern)
global_props |= GIMP_CONTEXT_PATTERN_MASK;
if (config->global_palette)
global_props |= GIMP_CONTEXT_PALETTE_MASK;
if (config->global_gradient)
global_props |= GIMP_CONTEXT_GRADIENT_MASK;
if (config->global_font)
global_props |= GIMP_CONTEXT_FONT_MASK;
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);
}
tool_manager_select_tool (user_context->gimp, new_tool);
g_object_unref (new_tool);
}
static void
tool_manager_image_clean_dirty (GimpImage *gimage,
GimpDirtyMask dirty_mask,
GimpToolManager *tool_manager)
{
GimpTool *active_tool = tool_manager->active_tool;
if (active_tool &&
! gimp_tool_control_preserve (active_tool->control) &&
(gimp_tool_control_dirty_mask (active_tool->control) & dirty_mask))
{
GimpDisplay *gdisp = active_tool->gdisp;
if (! gdisp || gdisp->gimage != gimage)
if (GIMP_IS_DRAW_TOOL (active_tool))
gdisp = GIMP_DRAW_TOOL (active_tool)->gdisp;
if (gdisp && gdisp->gimage == gimage)
gimp_context_tool_changed (gimp_get_user_context (gimage->gimp));
}
}