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gimp/app/tools/transform_options.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 <gtk/gtk.h>
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimp.h"
#include "core/gimpcoreconfig.h"
#include "core/gimptoolinfo.h"
#include "widgets/gimpenummenu.h"
#include "gimprotatetool.h"
#include "gimpscaletool.h"
#include "gimptransformtool.h"
#include "transform_options.h"
#include "tool_manager.h"
#include "gimprc.h"
#include "libgimp/gimpintl.h"
/* local function prototypes */
static void gimp_transform_tool_grid_density_update (GtkWidget *widget,
gpointer data);
static void gimp_transform_tool_show_grid_update (GtkWidget *widget,
gpointer data);
static void gimp_transform_tool_show_path_update (GtkWidget *widget,
gpointer data);
/* public functions */
GimpToolOptions *
transform_options_new (GimpToolInfo *tool_info)
{
TransformOptions *options;
options = g_new0 (TransformOptions, 1);
transform_options_init (options, tool_info);
return (GimpToolOptions *) options;
}
void
transform_options_init (TransformOptions *options,
GimpToolInfo *tool_info)
{
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *frame;
GtkWidget *vbox2;
GtkWidget *fbox;
GtkWidget *grid_density;
tool_options_init ((GimpToolOptions *) options, tool_info);
((GimpToolOptions *) options)->reset_func = transform_options_reset;
/* the main vbox */
vbox = options->tool_options.main_vbox;
options->direction = options->direction_d = GIMP_TRANSFORM_FORWARD;
options->interpolation = tool_info->gimp->config->interpolation_type;
options->show_path = options->show_path_d = TRUE;
options->clip = options->clip_d = FALSE;
options->grid_size = options->grid_size_d = 32;
options->show_grid = options->show_grid_d = TRUE;
options->constrain_1 = options->constrain_1_d = FALSE;
options->constrain_2 = options->constrain_2_d = FALSE;
frame = gimp_enum_radio_frame_new (GIMP_TYPE_TRANSFORM_DIRECTION,
gtk_label_new (_("Transform Direction")),
2,
G_CALLBACK (gimp_radio_button_update),
&options->direction,
&options->direction_w);
gimp_radio_group_set_active (GTK_RADIO_BUTTON (options->direction_w),
GINT_TO_POINTER (options->direction));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
/* the interpolation menu */
hbox = gtk_hbox_new (FALSE, 4);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new (_("Interpolation:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
options->interpolation_w =
gimp_enum_option_menu_new (GIMP_TYPE_INTERPOLATION_TYPE,
G_CALLBACK (gimp_menu_item_update),
&options->interpolation);
gimp_option_menu_set_history (GTK_OPTION_MENU (options->interpolation_w),
GINT_TO_POINTER (options->interpolation));
gtk_box_pack_start (GTK_BOX (hbox),
options->interpolation_w, FALSE, FALSE, 0);
gtk_widget_show (options->interpolation_w);
/* the clip resulting image toggle button */
options->clip_w = gtk_check_button_new_with_label (_("Clip Result"));
gtk_box_pack_start (GTK_BOX (vbox), options->clip_w, FALSE, FALSE, 0);
gtk_widget_show (options->clip_w);
g_signal_connect (G_OBJECT (options->clip_w), "toggled",
G_CALLBACK (gimp_toggle_button_update),
&options->clip);
/* the grid frame */
frame = gtk_frame_new (NULL);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
fbox = gtk_vbox_new (FALSE, 1);
gtk_container_set_border_width (GTK_CONTAINER (fbox), 2);
gtk_container_add (GTK_CONTAINER (frame), fbox);
gtk_widget_show (fbox);
/* the show grid toggle button */
options->show_grid_w = gtk_check_button_new_with_label (_("Show Grid"));
gtk_frame_set_label_widget (GTK_FRAME (frame), options->show_grid_w);
gtk_widget_show (options->show_grid_w);
g_signal_connect (G_OBJECT (options->show_grid_w), "toggled",
G_CALLBACK (gimp_transform_tool_show_grid_update),
options);
/* the grid density entry */
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (fbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new (_("Density:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
options->grid_size_w =
gtk_adjustment_new (7.0 - log (options->grid_size) / log (2.0), 0.0, 5.0,
1.0, 1.0, 0.0);
grid_density =
gtk_spin_button_new (GTK_ADJUSTMENT (options->grid_size_w), 0, 0);
gtk_spin_button_set_wrap (GTK_SPIN_BUTTON (grid_density), TRUE);
gtk_box_pack_start (GTK_BOX (hbox), grid_density, FALSE, FALSE, 0);
gtk_widget_show (grid_density);
g_signal_connect (G_OBJECT (options->grid_size_w), "value_changed",
G_CALLBACK (gimp_transform_tool_grid_density_update),
options);
gtk_widget_set_sensitive (label, options->show_grid);
gtk_widget_set_sensitive (grid_density, options->show_grid);
g_object_set_data (G_OBJECT (options->show_grid_w), "set_sensitive",
grid_density);
g_object_set_data (G_OBJECT (grid_density), "set_sensitive", label);
/* the show_path toggle button */
options->show_path_w = gtk_check_button_new_with_label (_("Show Path"));
gtk_box_pack_start (GTK_BOX (vbox), options->show_path_w, FALSE, FALSE, 0);
gtk_widget_show (options->show_path_w);
g_signal_connect (G_OBJECT (options->show_path_w), "toggled",
G_CALLBACK (gimp_transform_tool_show_path_update),
options);
if (tool_info->tool_type == GIMP_TYPE_ROTATE_TOOL ||
tool_info->tool_type == GIMP_TYPE_SCALE_TOOL)
{
/* the constraints frame */
frame = gtk_frame_new (_("Constraints"));
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox2 = gtk_vbox_new (FALSE, 2);
gtk_container_set_border_width (GTK_CONTAINER (vbox2), 2);
gtk_container_add (GTK_CONTAINER (frame), vbox2);
gtk_widget_show (vbox2);
if (tool_info->tool_type == GIMP_TYPE_ROTATE_TOOL)
{
options->constrain_1_w =
gtk_check_button_new_with_label (_("15 Degrees (<Ctrl>)"));
gtk_box_pack_start (GTK_BOX (vbox2), options->constrain_1_w,
FALSE, FALSE, 0);
gtk_widget_show (options->constrain_1_w);
g_signal_connect (G_OBJECT (options->constrain_1_w), "toggled",
G_CALLBACK (gimp_toggle_button_update),
&options->constrain_1);
}
else if (tool_info->tool_type == GIMP_TYPE_SCALE_TOOL)
{
options->constrain_1_w =
gtk_check_button_new_with_label (_("Keep Height (<Ctrl>)"));
gtk_box_pack_start (GTK_BOX (vbox2), options->constrain_1_w,
FALSE, FALSE, 0);
gtk_widget_show (options->constrain_1_w);
gimp_help_set_help_data (options->constrain_1_w,
_("Activate both the \"Keep Height\" and\n"
"\"Keep Width\" toggles to constrain\n"
"the aspect ratio"), NULL);
g_signal_connect (G_OBJECT (options->constrain_1_w), "toggled",
G_CALLBACK (gimp_toggle_button_update),
&options->constrain_1);
options->constrain_2_w =
gtk_check_button_new_with_label (_("Keep Width (<Alt>)"));
gtk_box_pack_start (GTK_BOX (vbox2), options->constrain_2_w,
FALSE, FALSE, 0);
gtk_widget_show (options->constrain_2_w);
gimp_help_set_help_data (options->constrain_2_w,
_("Activate both the \"Keep Height\" and\n"
"\"Keep Width\" toggles to constrain\n"
"the aspect ratio"), NULL);
g_signal_connect (G_OBJECT (options->constrain_2_w), "toggled",
G_CALLBACK (gimp_toggle_button_update),
&options->constrain_2);
}
}
/* Set options to default values */
transform_options_reset ((GimpToolOptions *) options);
}
void
transform_options_reset (GimpToolOptions *tool_options)
{
TransformOptions *options;
options = (TransformOptions *) tool_options;
gimp_radio_group_set_active (GTK_RADIO_BUTTON (options->direction_w),
GINT_TO_POINTER (options->direction_d));
options->interpolation =
tool_options->tool_info->gimp->config->interpolation_type;
gimp_option_menu_set_history (GTK_OPTION_MENU (options->interpolation_w),
GINT_TO_POINTER (options->interpolation));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->clip_w),
options->clip_d);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->show_grid_w),
options->show_grid_d);
gtk_adjustment_set_value (GTK_ADJUSTMENT (options->grid_size_w),
7.0 - log (options->grid_size_d) / log (2.0));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->show_path_w),
options->show_path_d);
if (options->constrain_1_w)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->constrain_1_w),
options->constrain_1_d);
if (options->constrain_2_w)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->constrain_2_w),
options->constrain_2_d);
}
/* private functions */
static void
gimp_transform_tool_grid_density_update (GtkWidget *widget,
gpointer data)
{
TransformOptions *options;
GimpToolOptions *tool_options;
GimpTool *active_tool;
options = (TransformOptions *) data;
tool_options = (GimpToolOptions *) data;
options->grid_size =
(gint) (pow (2.0, 7.0 - GTK_ADJUSTMENT (widget)->value) + 0.5);
active_tool = tool_manager_get_active (tool_options->tool_info->gimp);
if (GIMP_IS_TRANSFORM_TOOL (active_tool))
gimp_transform_tool_grid_density_changed (GIMP_TRANSFORM_TOOL (active_tool));
}
static void
gimp_transform_tool_show_grid_update (GtkWidget *widget,
gpointer data)
{
TransformOptions *options;
GimpToolOptions *tool_options;
GimpTool *active_tool;
static gboolean first_call = TRUE; /* eek, this hack avoids a segfault */
if (first_call)
{
first_call = FALSE;
return;
}
options = (TransformOptions *) data;
tool_options = (GimpToolOptions *) data;
gimp_toggle_button_update (widget, &options->show_grid);
active_tool = tool_manager_get_active (tool_options->tool_info->gimp);
if (GIMP_IS_TRANSFORM_TOOL (active_tool))
gimp_transform_tool_grid_density_changed (GIMP_TRANSFORM_TOOL (active_tool));
}
static void
gimp_transform_tool_show_path_update (GtkWidget *widget,
gpointer data)
{
TransformOptions *options;
GimpToolOptions *tool_options;
GimpTool *active_tool;
static gboolean first_call = TRUE; /* eek, this hack avoids a segfault */
if (first_call)
{
first_call = FALSE;
return;
}
options = (TransformOptions *) data;
tool_options = (GimpToolOptions *) data;
active_tool = tool_manager_get_active (tool_options->tool_info->gimp);
if (GIMP_IS_TRANSFORM_TOOL (active_tool))
{
GimpTransformTool *transform_tool;
transform_tool = GIMP_TRANSFORM_TOOL (active_tool);
gimp_transform_tool_show_path_changed (transform_tool, 1); /* pause */
gimp_toggle_button_update (widget, &options->show_path);
gimp_transform_tool_show_path_changed (transform_tool, 0); /* resume */
}
else
{
gimp_toggle_button_update (widget, &options->show_path);
}
}
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