mirror of https://github.com/GNOME/gimp.git
280 lines
7.5 KiB
C
280 lines
7.5 KiB
C
/* The GIMP -- an 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 "appenv.h"
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#include "colormaps.h"
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#include "cursorutil.h"
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#include "context_manager.h"
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#include "gdisplay.h"
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#include "gimprc.h"
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#include "paint_options.h"
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#include "tools.h"
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static GimpContext * global_tool_context;
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#define PAINT_OPTIONS_MASK GIMP_CONTEXT_OPACITY_MASK | \
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GIMP_CONTEXT_PAINT_MODE_MASK
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static void
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context_manager_display_changed (GimpContext *context,
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GDisplay *display,
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gpointer data)
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{
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gdisplay_set_menu_sensitivity (display);
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}
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static void
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context_manager_tool_changed (GimpContext *user_context,
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ToolType tool_type,
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gpointer data)
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{
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/* FIXME: gimp_busy HACK */
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if (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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gtk_signal_emit_stop_by_name (GTK_OBJECT (user_context), "tool_changed");
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if (active_tool->type != tool_type)
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{
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gtk_signal_handler_block_by_func (GTK_OBJECT (user_context),
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context_manager_tool_changed,
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NULL);
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/* explicitly set the current tool */
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gimp_context_set_tool (user_context, active_tool->type);
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gtk_signal_handler_unblock_by_func (GTK_OBJECT (user_context),
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context_manager_tool_changed,
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NULL);
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}
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/* take care that the correct toolbox button gets re-activated */
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tool_type = active_tool->type;
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}
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else
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{
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GimpContext* tool_context;
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if (! global_paint_options)
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{
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if (active_tool &&
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(tool_context = tool_info[active_tool->type].tool_context))
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{
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gimp_context_unset_parent (tool_context);
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}
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if ((tool_context = tool_info[tool_type].tool_context))
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{
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gimp_context_copy_args (tool_context, user_context,
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PAINT_OPTIONS_MASK);
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gimp_context_set_parent (tool_context, user_context);
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}
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}
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tools_select (tool_type);
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}
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if (tool_type == SCALE ||
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tool_type == SHEAR ||
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tool_type == PERSPECTIVE)
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tool_type = ROTATE;
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if (! GTK_TOGGLE_BUTTON (tool_info[tool_type].tool_widget)->active)
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{
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gtk_signal_handler_block_by_data
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(GTK_OBJECT (tool_info[tool_type].tool_widget), (gpointer) tool_type);
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gtk_widget_activate (tool_info[tool_type].tool_widget);
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gtk_signal_handler_unblock_by_data
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(GTK_OBJECT (tool_info[tool_type].tool_widget), (gpointer) tool_type);
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}
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}
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static void
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context_manager_foreground_changed (GimpContext *context,
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gint r,
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gint g,
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gint b,
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gpointer data)
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{
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if (no_interface == FALSE)
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foreground_pixel = get_color (r, g, b);
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}
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static void
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context_manager_background_changed (GimpContext *context,
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gint r,
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gint g,
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gint b,
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gpointer data)
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{
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if (no_interface == FALSE)
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background_pixel = get_color (r, g, b);
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}
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void
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context_manager_init (void)
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{
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GimpContext *standard_context;
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GimpContext *default_context;
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GimpContext *user_context;
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gint i;
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/* Implicitly create the standard context */
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standard_context = gimp_context_get_standard ();
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/* TODO: load from disk */
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default_context = gimp_context_new ("Default", NULL);
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gimp_context_set_default (default_context);
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/* Initialize the user context will with the default context's values */
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user_context = gimp_context_new ("User", default_context);
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gimp_context_set_user (user_context);
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/* Update the tear-off menus */
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gtk_signal_connect (GTK_OBJECT (user_context), "display_changed",
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GTK_SIGNAL_FUNC (context_manager_display_changed),
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NULL);
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/* Update the tool system */
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gtk_signal_connect (GTK_OBJECT (user_context), "tool_changed",
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GTK_SIGNAL_FUNC (context_manager_tool_changed),
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NULL);
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/* Update color-related stuff */
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gtk_signal_connect (GTK_OBJECT (user_context), "foreground_changed",
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GTK_SIGNAL_FUNC (context_manager_foreground_changed),
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NULL);
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gtk_signal_connect (GTK_OBJECT (user_context), "background_changed",
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GTK_SIGNAL_FUNC (context_manager_background_changed),
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NULL);
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/* Make the user contect the currently active context */
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gimp_context_set_current (user_context);
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/* Create a context to store the paint options of the
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* global paint options mode
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*/
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global_tool_context = gimp_context_new ("Global Tool Context", user_context);
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/* TODO: add foreground, background, brush, pattern, gradient */
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gimp_context_define_args (global_tool_context, PAINT_OPTIONS_MASK, FALSE);
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/* Initialize the paint tools' private contexts */
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for (i = 0; i < num_tools; i++)
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{
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switch (tool_info[i].tool_id)
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{
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case BUCKET_FILL:
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case BLEND:
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case PENCIL:
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case PAINTBRUSH:
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case ERASER:
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case AIRBRUSH:
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case CLONE:
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case CONVOLVE:
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case INK:
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case DODGEBURN:
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case SMUDGE:
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/* case XINPUT_AIRBRUSH: */
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tool_info[i].tool_context =
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gimp_context_new (tool_info[i].private_tip, global_tool_context);
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break;
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default:
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tool_info[i].tool_context = NULL;
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break;
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}
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}
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if (! global_paint_options &&
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active_tool &&
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tool_info[active_tool->type].tool_context)
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{
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gimp_context_set_parent (tool_info[active_tool->type].tool_context,
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user_context);
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}
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else if (global_paint_options)
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{
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gimp_context_set_parent (global_tool_context, user_context);
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}
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}
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void
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context_manager_free (void)
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{
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gint i;
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gtk_object_unref (GTK_OBJECT (global_tool_context));
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global_tool_context = NULL;
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for (i = 0; i < num_tools; i++)
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{
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if (tool_info[i].tool_context != NULL)
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{
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gtk_object_unref (GTK_OBJECT (tool_info[i].tool_context));
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tool_info[i].tool_context = NULL;
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}
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}
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gtk_object_unref (GTK_OBJECT (gimp_context_get_user ()));
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gimp_context_set_user (NULL);
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gimp_context_set_current (NULL);
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/* TODO: Save to disk before destroying */
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gtk_object_unref (GTK_OBJECT (gimp_context_get_default ()));
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gimp_context_set_default (NULL);
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}
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void
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context_manager_set_global_paint_options (gboolean global)
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{
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GimpContext* context;
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if (global == global_paint_options) return;
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paint_options_set_global (global);
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if (global)
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{
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if (active_tool &&
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(context = tool_info[active_tool->type].tool_context))
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{
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gimp_context_unset_parent (context);
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}
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gimp_context_copy_args (global_tool_context, gimp_context_get_user (),
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PAINT_OPTIONS_MASK);
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gimp_context_set_parent (global_tool_context, gimp_context_get_user ());
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}
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else
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{
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gimp_context_unset_parent (global_tool_context);
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if (active_tool &&
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(context = tool_info[active_tool->type].tool_context))
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{
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gimp_context_copy_args (context, gimp_context_get_user (),
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GIMP_CONTEXT_PAINT_ARGS_MASK);
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gimp_context_set_parent (context, gimp_context_get_user ());
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}
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}
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}
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