gimp/app/context_manager.c

340 lines
9.5 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 "apptypes.h"
#include "tools/gimptool.h"
#include "tools/gimptoolinfo.h"
#include "tools/paint_options.h"
#include "tools/tool_manager.h"
#include "gui/brush-select.h"
#include "appenv.h"
#include "cursorutil.h"
#include "context_manager.h"
#include "gdisplay.h"
#include "gimpbrush.h"
#include "gimpbrushgenerated.h"
#include "gimpbrushpipe.h"
#include "gimpcontainer.h"
#include "gimpcontext.h"
#include "gimpdatafactory.h"
#include "gimpdatalist.h"
#include "gimpgradient.h"
#include "gimpimage.h"
#include "gimplist.h"
#include "gimppalette.h"
#include "gimppattern.h"
#include "gimprc.h"
#define PAINT_OPTIONS_MASK GIMP_CONTEXT_OPACITY_MASK | \
GIMP_CONTEXT_PAINT_MODE_MASK
/* HACK: provide prototype without tools/tools.h */
extern void register_tools (void);
/*
* the list of all images
*/
GimpContainer *image_context = NULL;
/*
* the global data lists
*/
GimpDataFactory *global_brush_factory = NULL;
GimpDataFactory *global_pattern_factory = NULL;
GimpDataFactory *global_gradient_factory = NULL;
GimpDataFactory *global_palette_factory = NULL;
/*
* the global tool context
*/
GimpContext *global_tool_context = NULL;
static void
context_manager_display_changed (GimpContext *context,
GDisplay *display,
gpointer data)
{
gdisplay_set_menu_sensitivity (display);
}
static void
context_manager_tool_changed (GimpContext *user_context,
GimpToolInfo *tool_info,
gpointer data)
{
if (! tool_info)
return;
/* FIXME: gimp_busy HACK */
if (gimp_busy)
{
/* there may be contexts waiting for the user_context's "tool_changed"
* signal, so stop emitting it.
*/
gtk_signal_emit_stop_by_name (GTK_OBJECT (user_context), "tool_changed");
if (GTK_OBJECT (active_tool)->klass->type != tool_info->tool_type)
{
gtk_signal_handler_block_by_func (GTK_OBJECT (user_context),
context_manager_tool_changed,
NULL);
/* explicitly set the current tool */
gimp_context_set_tool (user_context,
tool_manager_get_info_by_tool (active_tool));
gtk_signal_handler_unblock_by_func (GTK_OBJECT (user_context),
context_manager_tool_changed,
NULL);
}
}
else
{
GimpTool *new_tool = NULL;
GimpContext *tool_context = NULL;
if (tool_info->tool_type != GTK_TYPE_NONE)
{
new_tool = gtk_type_new (tool_info->tool_type);
}
else
{
g_warning ("%s(): tool_info contains no valid GtkType",
G_GNUC_FUNCTION);
return;
}
if (! global_paint_options)
{
if (active_tool &&
(tool_context = tool_manager_get_info_by_tool (active_tool)->context))
{
gimp_context_unset_parent (tool_context);
}
if ((tool_context = tool_info->context))
{
gimp_context_copy_args (tool_context, user_context,
PAINT_OPTIONS_MASK);
gimp_context_set_parent (tool_context, user_context);
}
}
tool_manager_select_tool (new_tool);
}
}
void
context_manager_init (void)
{
GimpContext *standard_context;
GimpContext *default_context;
GimpContext *user_context;
GimpContext *tool_context;
static const GimpDataFactoryLoaderEntry brush_loader_entries[] =
{
{ gimp_brush_load, GIMP_BRUSH_FILE_EXTENSION },
{ gimp_brush_load, GIMP_BRUSH_PIXMAP_FILE_EXTENSION },
{ gimp_brush_generated_load, GIMP_BRUSH_GENERATED_FILE_EXTENSION },
{ gimp_brush_pipe_load, GIMP_BRUSH_PIPE_FILE_EXTENSION }
};
static gint n_brush_loader_entries = (sizeof (brush_loader_entries) /
sizeof (brush_loader_entries[0]));
static const GimpDataFactoryLoaderEntry pattern_loader_entries[] =
{
{ gimp_pattern_load, GIMP_PATTERN_FILE_EXTENSION }
};
static gint n_pattern_loader_entries = (sizeof (pattern_loader_entries) /
sizeof (pattern_loader_entries[0]));
static const GimpDataFactoryLoaderEntry gradient_loader_entries[] =
{
{ gimp_gradient_load, GIMP_GRADIENT_FILE_EXTENSION },
{ gimp_gradient_load, NULL /* legacy loader */ }
};
static gint n_gradient_loader_entries = (sizeof (gradient_loader_entries) /
sizeof (gradient_loader_entries[0]));
static const GimpDataFactoryLoaderEntry palette_loader_entries[] =
{
{ gimp_palette_load, GIMP_PALETTE_FILE_EXTENSION },
{ gimp_palette_load, NULL /* legacy loader */ }
};
static gint n_palette_loader_entries = (sizeof (palette_loader_entries) /
sizeof (palette_loader_entries[0]));
/* Create the context of all existing images */
image_context = gimp_list_new (GIMP_TYPE_IMAGE, GIMP_CONTAINER_POLICY_WEAK);
/* Create the global data factories */
global_brush_factory =
gimp_data_factory_new (GIMP_TYPE_BRUSH,
(const gchar **) &brush_path,
brush_loader_entries,
n_brush_loader_entries,
gimp_brush_new,
gimp_brush_get_standard);
global_pattern_factory =
gimp_data_factory_new (GIMP_TYPE_PATTERN,
(const gchar **) &pattern_path,
pattern_loader_entries,
n_pattern_loader_entries,
gimp_pattern_new,
gimp_pattern_get_standard);
global_gradient_factory =
gimp_data_factory_new (GIMP_TYPE_GRADIENT,
(const gchar **) &gradient_path,
gradient_loader_entries,
n_gradient_loader_entries,
gimp_gradient_new,
gimp_gradient_get_standard);
global_palette_factory =
gimp_data_factory_new (GIMP_TYPE_PALETTE,
(const gchar **) &palette_path,
palette_loader_entries,
n_palette_loader_entries,
gimp_palette_new,
gimp_palette_get_standard);
/* Create the global tool info list */
tool_manager_init ();
/* Implicitly create the standard context */
standard_context = gimp_context_get_standard ();
/* TODO: load from disk */
default_context = gimp_context_new ("Default", NULL);
gimp_context_set_default (default_context);
/* Initialize the user context with the default context's values */
user_context = gimp_context_new ("User", default_context);
gimp_context_set_user (user_context);
/* Update the tear-off menus */
gtk_signal_connect (GTK_OBJECT (user_context), "display_changed",
GTK_SIGNAL_FUNC (context_manager_display_changed),
NULL);
/* Update the tool system */
gtk_signal_connect (GTK_OBJECT (user_context), "tool_changed",
GTK_SIGNAL_FUNC (context_manager_tool_changed),
NULL);
/* Make the user contect the currently active context */
gimp_context_set_current (user_context);
/* Create a context to store the paint options of the
* global paint options mode
*/
global_tool_context = gimp_context_new ("Global Tool Context", user_context);
/* TODO: add foreground, background, brush, pattern, gradient */
gimp_context_define_args (global_tool_context, PAINT_OPTIONS_MASK, FALSE);
/* register internal tools */
register_tools ();
if (! global_paint_options && active_tool &&
(tool_context = tool_manager_get_info_by_tool (active_tool)->context))
{
gimp_context_set_parent (tool_context, user_context);
}
else if (global_paint_options)
{
gimp_context_set_parent (global_tool_context, user_context);
}
gimp_container_thaw (global_tool_info_list);
}
void
context_manager_free (void)
{
gtk_object_unref (GTK_OBJECT (global_tool_context));
global_tool_context = NULL;
gtk_object_unref (GTK_OBJECT (gimp_context_get_user ()));
gimp_context_set_user (NULL);
gimp_context_set_current (NULL);
/* TODO: Save to disk before destroying */
gtk_object_unref (GTK_OBJECT (gimp_context_get_default ()));
gimp_context_set_default (NULL);
gimp_data_factory_data_free (global_brush_factory);
gimp_data_factory_data_free (global_pattern_factory);
gimp_data_factory_data_free (global_gradient_factory);
gimp_data_factory_data_free (global_palette_factory);
}
void
context_manager_set_global_paint_options (gboolean global)
{
GimpToolInfo *tool_info;
GimpContext *context;
if (global == global_paint_options)
return;
paint_options_set_global (global);
/* NULL is the main brush selection */
brush_select_show_paint_options (NULL, global);
tool_info = gimp_context_get_tool (gimp_context_get_user ());
if (global)
{
if (tool_info && (context = tool_info->context))
{
gimp_context_unset_parent (context);
}
gimp_context_copy_args (global_tool_context, gimp_context_get_user (),
PAINT_OPTIONS_MASK);
gimp_context_set_parent (global_tool_context, gimp_context_get_user ());
}
else
{
gimp_context_unset_parent (global_tool_context);
if (tool_info && (context = tool_info->context))
{
gimp_context_copy_args (context, gimp_context_get_user (),
GIMP_CONTEXT_PAINT_ARGS_MASK);
gimp_context_set_parent (context, gimp_context_get_user ());
}
}
}