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gimp/app/gui/brush-select.c

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/* 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 <string.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets/widgets-types.h"
#include "base/temp-buf.h"
#include "core/gimp.h"
#include "core/gimpbrush.h"
#include "core/gimpcontainer.h"
#include "core/gimpcontext.h"
#include "core/gimpdatafactory.h"
#include "pdb/procedural_db.h"
#include "widgets/gimpbrushfactoryview.h"
#include "widgets/gimpwidgets-constructors.h"
#include "brush-select.h"
#include "dialogs-constructors.h"
#include "appenv.h"
#include "app_procs.h"
#include "dialog_handler.h"
#include "gimprc.h"
#include "libgimp/gimpintl.h"
#define MIN_CELL_SIZE 25
#define STD_BRUSH_COLUMNS 5
#define STD_BRUSH_ROWS 5
/* local function prototypes */
static void brush_select_change_callbacks (BrushSelect *bsp,
gboolean closing);
static void brush_select_brush_changed (GimpContext *context,
GimpBrush *brush,
BrushSelect *bsp);
static void brush_select_opacity_changed (GimpContext *context,
gdouble opacity,
BrushSelect *bsp);
static void brush_select_paint_mode_changed (GimpContext *context,
LayerModeEffects paint_mode,
BrushSelect *bsp);
static void opacity_scale_update (GtkAdjustment *adj,
gpointer data);
static void paint_mode_menu_callback (GtkWidget *widget,
gpointer data);
static void spacing_scale_update (GtkAdjustment *adj,
gpointer data);
static void brush_select_close_callback (GtkWidget *widget,
gpointer data);
/* list of active dialogs */
GSList *brush_active_dialogs = NULL;
/* the main brush selection dialog */
BrushSelect *brush_select_dialog = NULL;
/* public functions */
GtkWidget *
brush_dialog_create (void)
{
if (! brush_select_dialog)
{
brush_select_dialog = brush_select_new (NULL, NULL, 0.0, 0, 0);
}
return brush_select_dialog->shell;
}
void
brush_dialog_free (void)
{
if (brush_select_dialog)
{
brush_select_free (brush_select_dialog);
brush_select_dialog = NULL;
}
}
/* If title == NULL then it is the main brush dialog */
BrushSelect *
brush_select_new (gchar *title,
/* These are the required initial vals
* If init_name == NULL then use current brush
*/
gchar *init_name,
gdouble init_opacity,
gint init_spacing,
gint init_mode)
{
BrushSelect *bsp;
GtkWidget *main_vbox;
GtkWidget *sep;
GtkWidget *table;
GtkWidget *slider;
GimpBrush *active = NULL;
static gboolean first_call = TRUE;
bsp = g_new0 (BrushSelect, 1);
/* The shell */
bsp->shell = gimp_dialog_new (title ? title : _("Brush Selection"),
"brush_selection",
gimp_standard_help_func,
"dialogs/brush_selection.html",
title ? GTK_WIN_POS_MOUSE : GTK_WIN_POS_NONE,
FALSE, TRUE, FALSE,
"_delete_event_", brush_select_close_callback,
bsp, NULL, NULL, TRUE, TRUE,
NULL);
gtk_widget_hide (GTK_WIDGET (g_list_nth_data (gtk_container_children (GTK_CONTAINER (GTK_DIALOG (bsp->shell)->vbox)), 0)));
gtk_widget_hide (GTK_DIALOG (bsp->shell)->action_area);
if (title)
{
bsp->context = gimp_create_context (the_gimp, title, NULL);
}
else
{
bsp->context = gimp_get_user_context (the_gimp);
dialog_register (bsp->shell);
}
if (no_data && first_call)
gimp_data_factory_data_init (the_gimp->brush_factory, FALSE);
first_call = FALSE;
if (title && init_name && strlen (init_name))
{
active = (GimpBrush *)
gimp_container_get_child_by_name (the_gimp->brush_factory->container,
init_name);
}
else
{
active = gimp_context_get_brush (gimp_get_user_context (the_gimp));
}
if (!active)
active = gimp_context_get_brush (gimp_get_standard_context (the_gimp));
if (title)
{
gimp_context_set_brush (bsp->context, active);
gimp_context_set_paint_mode (bsp->context, init_mode);
gimp_context_set_opacity (bsp->context, init_opacity);
bsp->spacing_value = init_spacing;
}
/* The main vbox */
main_vbox = gtk_vbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 2);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (bsp->shell)->vbox), main_vbox);
/* The Brush Grid */
bsp->view = gimp_brush_factory_view_new (GIMP_VIEW_TYPE_GRID,
the_gimp->brush_factory,
dialogs_edit_brush_func,
bsp->context,
title ? FALSE : TRUE,
MIN_CELL_SIZE,
STD_BRUSH_COLUMNS,
STD_BRUSH_ROWS,
NULL);
gtk_box_pack_start (GTK_BOX (main_vbox), bsp->view, TRUE, TRUE, 0);
gtk_widget_show (bsp->view);
/* The vbox for the paint options */
bsp->paint_options_box = gtk_vbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (bsp->view), bsp->paint_options_box,
FALSE, FALSE, 0);
/* Create the frame and the table for the options */
table = gtk_table_new (2, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (bsp->paint_options_box), table, FALSE, FALSE, 2);
/* Create the opacity scale widget */
bsp->opacity_data =
GTK_ADJUSTMENT (gtk_adjustment_new
(gimp_context_get_opacity (bsp->context) * 100.0,
0.0, 100.0, 1.0, 1.0, 0.0));
slider = gtk_hscale_new (bsp->opacity_data);
gtk_scale_set_value_pos (GTK_SCALE (slider), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
gtk_signal_connect (GTK_OBJECT (bsp->opacity_data), "value_changed",
GTK_SIGNAL_FUNC (opacity_scale_update),
bsp);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("Opacity:"), 1.0, 1.0,
slider, 1, FALSE);
/* Create the paint mode option menu */
bsp->option_menu =
gimp_paint_mode_menu_new (paint_mode_menu_callback, (gpointer) bsp, TRUE,
gimp_context_get_paint_mode (bsp->context));
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("Mode:"), 1.0, 0.5,
bsp->option_menu, 1, TRUE);
gtk_widget_show (table);
gtk_widget_show (bsp->paint_options_box);
/* A separator after the paint options */
sep = gtk_hseparator_new ();
gtk_box_pack_start (GTK_BOX (bsp->paint_options_box), sep, FALSE, FALSE, 0);
gtk_widget_show (sep);
if (title && init_spacing >= 0)
{
GtkAdjustment *adj;
adj = GIMP_BRUSH_FACTORY_VIEW (bsp->view)->spacing_adjustment;
/* Use passed spacing instead of brushes default */
gtk_adjustment_set_value (adj, init_spacing);
}
gtk_signal_connect
(GTK_OBJECT (GIMP_BRUSH_FACTORY_VIEW (bsp->view)->spacing_adjustment),
"value_changed",
GTK_SIGNAL_FUNC (spacing_scale_update),
bsp);
gtk_widget_show (table);
gtk_widget_show (main_vbox);
/* Only for main dialog */
if (! title)
{
/* if we are in per-tool paint options mode, hide the paint options */
brush_select_show_paint_options (bsp, gimprc.global_paint_options);
}
gtk_widget_show (bsp->shell);
gtk_signal_connect (GTK_OBJECT (bsp->context), "brush_changed",
GTK_SIGNAL_FUNC (brush_select_brush_changed),
bsp);
gtk_signal_connect (GTK_OBJECT (bsp->context), "opacity_changed",
GTK_SIGNAL_FUNC (brush_select_opacity_changed),
bsp);
gtk_signal_connect (GTK_OBJECT (bsp->context), "paint_mode_changed",
GTK_SIGNAL_FUNC (brush_select_paint_mode_changed),
bsp);
/* Add to active brush dialogs list */
brush_active_dialogs = g_slist_append (brush_active_dialogs, bsp);
return bsp;
}
void
brush_select_free (BrushSelect *bsp)
{
if (!bsp)
return;
/* remove from active list */
brush_active_dialogs = g_slist_remove (brush_active_dialogs, bsp);
gtk_signal_disconnect_by_data (GTK_OBJECT (bsp->context), bsp);
if (bsp->callback_name)
{
g_free (bsp->callback_name);
gtk_object_unref (GTK_OBJECT (bsp->context));
}
g_free (bsp);
}
void
brush_select_show_paint_options (BrushSelect *bsp,
gboolean show)
{
if ((bsp == NULL) && ((bsp = brush_select_dialog) == NULL))
return;
if (show)
{
if (! GTK_WIDGET_VISIBLE (bsp->paint_options_box))
gtk_widget_show (bsp->paint_options_box);
}
else
{
if (GTK_WIDGET_VISIBLE (bsp->paint_options_box))
gtk_widget_hide (bsp->paint_options_box);
}
}
/* call this dialog's PDB callback */
static void
brush_select_change_callbacks (BrushSelect *bsp,
gboolean closing)
{
gchar *name;
ProcRecord *prec = NULL;
GimpBrush *brush;
gint nreturn_vals;
static gboolean busy = FALSE;
/* Any procs registered to callback? */
Argument *return_vals;
if (!bsp || !bsp->callback_name || busy)
return;
busy = TRUE;
name = bsp->callback_name;
brush = gimp_context_get_brush (bsp->context);
/* If its still registered run it */
prec = procedural_db_lookup (bsp->context->gimp, name);
if (prec && brush)
{
return_vals =
procedural_db_run_proc (bsp->context->gimp,
name,
&nreturn_vals,
GIMP_PDB_STRING, GIMP_OBJECT (brush)->name,
GIMP_PDB_FLOAT, gimp_context_get_opacity (bsp->context),
GIMP_PDB_INT32, bsp->spacing_value,
GIMP_PDB_INT32, (gint) gimp_context_get_paint_mode (bsp->context),
GIMP_PDB_INT32, brush->mask->width,
GIMP_PDB_INT32, brush->mask->height,
GIMP_PDB_INT32, (brush->mask->width *
brush->mask->height),
GIMP_PDB_INT8ARRAY, temp_buf_data (brush->mask),
GIMP_PDB_INT32, (gint) closing,
GIMP_PDB_END);
if (!return_vals || return_vals[0].value.pdb_int != GIMP_PDB_SUCCESS)
g_message ("failed to run brush callback function");
procedural_db_destroy_args (return_vals, nreturn_vals);
}
busy = FALSE;
}
/* Close active dialogs that no longer have PDB registered for them */
void
brush_select_dialogs_check (void)
{
BrushSelect *bsp;
GSList *list;
gchar *name;
ProcRecord *prec = NULL;
list = brush_active_dialogs;
while (list)
{
bsp = (BrushSelect *) list->data;
list = g_slist_next (list);
name = bsp->callback_name;
if (name)
{
prec = procedural_db_lookup (bsp->context->gimp, name);
if (!prec)
{
/* Can alter brush_active_dialogs list */
brush_select_close_callback (NULL, bsp);
}
}
}
}
/*
* Local functions
*/
static void
brush_select_brush_changed (GimpContext *context,
GimpBrush *brush,
BrushSelect *bsp)
{
if (brush && bsp->callback_name)
{
brush_select_change_callbacks (bsp, FALSE);
}
}
static void
brush_select_opacity_changed (GimpContext *context,
gdouble opacity,
BrushSelect *bsp)
{
gtk_signal_handler_block_by_data (GTK_OBJECT (bsp->opacity_data), bsp);
gtk_adjustment_set_value (GTK_ADJUSTMENT (bsp->opacity_data),
opacity * 100.0);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (bsp->opacity_data), bsp);
if (bsp->callback_name)
brush_select_change_callbacks (bsp, FALSE);
}
static void
brush_select_paint_mode_changed (GimpContext *context,
LayerModeEffects paint_mode,
BrushSelect *bsp)
{
gimp_option_menu_set_history (GTK_OPTION_MENU (bsp->option_menu),
GINT_TO_POINTER (paint_mode));
if (bsp->callback_name)
brush_select_change_callbacks (bsp, FALSE);
}
static void
opacity_scale_update (GtkAdjustment *adjustment,
gpointer data)
{
BrushSelect *bsp;
bsp = (BrushSelect *) data;
gtk_signal_handler_block_by_data (GTK_OBJECT (bsp->context), data);
gimp_context_set_opacity (bsp->context, adjustment->value / 100.0);
gtk_signal_handler_unblock_by_data (GTK_OBJECT (bsp->context), data);
}
static void
paint_mode_menu_callback (GtkWidget *widget,
gpointer data)
{
BrushSelect *bsp;
LayerModeEffects paint_mode;
bsp = (BrushSelect *) data;
paint_mode = (LayerModeEffects)
GPOINTER_TO_INT (gtk_object_get_user_data (GTK_OBJECT (widget)));
gimp_context_set_paint_mode (bsp->context, paint_mode);
}
static void
spacing_scale_update (GtkAdjustment *adjustment,
gpointer data)
{
BrushSelect *bsp;
bsp = (BrushSelect *) data;
if (bsp->callback_name && bsp->spacing_value != adjustment->value)
{
bsp->spacing_value = adjustment->value;
brush_select_change_callbacks (bsp, FALSE);
}
}
static void
brush_select_close_callback (GtkWidget *widget,
gpointer data)
{
BrushSelect *bsp;
bsp = (BrushSelect *) data;
if (GTK_WIDGET_VISIBLE (bsp->shell))
gtk_widget_hide (bsp->shell);
/* Free memory if poping down dialog which is not the main one */
if (bsp != brush_select_dialog)
{
/* Send data back */
brush_select_change_callbacks (bsp, TRUE);
gtk_widget_destroy (bsp->shell);
brush_select_free (bsp);
}
}
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