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gimp/app/tools/gimpcolorpickertool.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995-2001 Spencer Kimball, Peter Mattis, and others
*
* 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 "libgimpcolor/gimpcolor.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimp.h"
#include "core/gimpdrawable.h"
#include "core/gimpimage.h"
#include "core/gimptoolinfo.h"
#include "widgets/gimpcolorframe.h"
#include "widgets/gimpdialogfactory.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimppaletteeditor.h"
#include "widgets/gimptooldialog.h"
#include "widgets/gimpviewabledialog.h"
#include "display/gimpdisplay.h"
#include "gimpcolorpickeroptions.h"
#include "gimpcolorpickertool.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_color_picker_tool_class_init (GimpColorPickerToolClass *klass);
static void gimp_color_picker_tool_init (GimpColorPickerTool *tool);
static GObject * gimp_color_picker_tool_constructor(GType type,
guint n_params,
GObjectConstructParam *params);
static void gimp_color_picker_tool_finalize (GObject *object);
static void gimp_color_picker_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *gdisp);
static void gimp_color_picker_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_color_picker_tool_oper_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_color_picker_tool_picked (GimpColorTool *color_tool,
GimpColorPickState pick_state,
GimpImageType sample_type,
GimpRGB *color,
gint color_index);
static void gimp_color_picker_tool_info_create (GimpColorPickerTool *picker_tool);
static void gimp_color_picker_tool_info_response (GtkWidget *widget,
gint response_id,
GimpColorPickerTool *picker_tool);
static void gimp_color_picker_tool_info_update (GimpColorPickerTool *picker_tool,
GimpImageType sample_type,
GimpRGB *color,
gint color_index);
static GimpColorToolClass *parent_class = NULL;
void
gimp_color_picker_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_COLOR_PICKER_TOOL,
GIMP_TYPE_COLOR_PICKER_OPTIONS,
gimp_color_picker_options_gui,
0,
"gimp-color-picker-tool",
_("Color Picker"),
_("Pick colors from the image"),
N_("C_olor Picker"), "O",
NULL, GIMP_HELP_TOOL_COLOR_PICKER,
GIMP_STOCK_TOOL_COLOR_PICKER,
data);
}
GtkType
gimp_color_picker_tool_get_type (void)
{
static GtkType tool_type = 0;
if (! tool_type)
{
static const GTypeInfo tool_info =
{
sizeof (GimpColorPickerToolClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_color_picker_tool_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpColorPickerTool),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_color_picker_tool_init,
};
tool_type = g_type_register_static (GIMP_TYPE_COLOR_TOOL,
"GimpColorPickerTool",
&tool_info, 0);
}
return tool_type;
}
static void
gimp_color_picker_tool_class_init (GimpColorPickerToolClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpColorToolClass *color_tool_class = GIMP_COLOR_TOOL_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->constructor = gimp_color_picker_tool_constructor;
object_class->finalize = gimp_color_picker_tool_finalize;
tool_class->control = gimp_color_picker_tool_control;
tool_class->modifier_key = gimp_color_picker_tool_modifier_key;
tool_class->oper_update = gimp_color_picker_tool_oper_update;
color_tool_class->picked = gimp_color_picker_tool_picked;
}
static void
gimp_color_picker_tool_init (GimpColorPickerTool *tool)
{
GimpColorTool *color_tool = GIMP_COLOR_TOOL (tool);
color_tool->pick_mode = GIMP_COLOR_PICK_MODE_FOREGROUND;
}
static GObject *
gimp_color_picker_tool_constructor (GType type,
guint n_params,
GObjectConstructParam *params)
{
GObject *object;
GimpTool *tool;
object = G_OBJECT_CLASS (parent_class)->constructor (type, n_params, params);
tool = GIMP_TOOL (object);
gimp_color_tool_enable (GIMP_COLOR_TOOL (object),
GIMP_COLOR_OPTIONS (tool->tool_info->tool_options));
return object;
}
static void
gimp_color_picker_tool_finalize (GObject *object)
{
GimpColorPickerTool *picker_tool = GIMP_COLOR_PICKER_TOOL (object);
if (picker_tool->dialog)
gimp_color_picker_tool_info_response (NULL, GTK_RESPONSE_CLOSE, picker_tool);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_color_picker_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *gdisp)
{
GimpColorPickerTool *picker_tool = GIMP_COLOR_PICKER_TOOL (tool);
switch (action)
{
case HALT:
if (picker_tool->dialog)
gimp_color_picker_tool_info_response (NULL, GTK_RESPONSE_CLOSE,
picker_tool);
break;
default:
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, gdisp);
}
static void
gimp_color_picker_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpColorPickerOptions *options;
options = GIMP_COLOR_PICKER_OPTIONS (tool->tool_info->tool_options);
if (key == GDK_SHIFT_MASK)
{
g_object_set (options, "add-to-palette", ! options->add_to_palette,
NULL);
}
else if (key == GDK_CONTROL_MASK)
{
switch (options->pick_mode)
{
case GIMP_COLOR_PICK_MODE_NONE:
break;
case GIMP_COLOR_PICK_MODE_FOREGROUND:
g_object_set (options, "pick-mode", GIMP_COLOR_PICK_MODE_BACKGROUND,
NULL);
break;
case GIMP_COLOR_PICK_MODE_BACKGROUND:
g_object_set (options, "pick-mode", GIMP_COLOR_PICK_MODE_FOREGROUND,
NULL);
break;
}
}
}
static void
gimp_color_picker_tool_oper_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpColorPickerOptions *options;
options = GIMP_COLOR_PICKER_OPTIONS (tool->tool_info->tool_options);
GIMP_COLOR_TOOL (tool)->pick_mode = options->pick_mode;
}
static void
gimp_color_picker_tool_picked (GimpColorTool *color_tool,
GimpColorPickState pick_state,
GimpImageType sample_type,
GimpRGB *color,
gint color_index)
{
GimpTool *tool = GIMP_TOOL (color_tool);
GimpColorPickerTool *picker_tool = GIMP_COLOR_PICKER_TOOL (color_tool);
GimpColorPickerOptions *options;
GimpContext *user_context;
options = GIMP_COLOR_PICKER_OPTIONS (color_tool->options);
if (! picker_tool->dialog)
gimp_color_picker_tool_info_create (picker_tool);
gimp_color_picker_tool_info_update (picker_tool, sample_type,
color, color_index);
user_context = gimp_get_user_context (tool->gdisp->gimage->gimp);
if (options->add_to_palette)
{
GimpDialogFactory *dialog_factory;
GdkScreen *screen;
GtkWidget *dockable;
GtkWidget *palette_editor;
GimpData *data;
dialog_factory = gimp_dialog_factory_from_name ("dock");
screen = gtk_widget_get_screen (tool->gdisp->shell);
dockable = gimp_dialog_factory_dialog_raise (dialog_factory,
screen,
"gimp-palette-editor",
-1);
palette_editor = gtk_bin_get_child (GTK_BIN (dockable));
data = gimp_data_editor_get_data (GIMP_DATA_EDITOR (palette_editor));
if (! data)
{
data = GIMP_DATA (gimp_context_get_palette (user_context));
gimp_data_editor_set_data (GIMP_DATA_EDITOR (palette_editor), data);
}
gimp_palette_editor_pick_color (GIMP_PALETTE_EDITOR (palette_editor),
color, pick_state);
}
switch (options->pick_mode)
{
case GIMP_COLOR_PICK_MODE_NONE:
break;
case GIMP_COLOR_PICK_MODE_FOREGROUND:
gimp_context_set_foreground (user_context, color);
break;
case GIMP_COLOR_PICK_MODE_BACKGROUND:
gimp_context_set_background (user_context, color);
break;
}
}
static void
gimp_color_picker_tool_info_create (GimpColorPickerTool *picker_tool)
{
GimpTool *tool = GIMP_TOOL (picker_tool);
GtkWidget *hbox;
GtkWidget *frame;
GimpRGB color;
g_return_if_fail (tool->drawable != NULL);
picker_tool->dialog = gimp_tool_dialog_new (tool->tool_info,
NULL /* tool->gdisp->shell */,
_("Color Picker Information"),
GTK_STOCK_CLOSE,
GTK_RESPONSE_CLOSE,
NULL);
gimp_viewable_dialog_set_viewable (GIMP_VIEWABLE_DIALOG (picker_tool->dialog),
GIMP_VIEWABLE (tool->drawable));
g_signal_connect (picker_tool->dialog, "response",
G_CALLBACK (gimp_color_picker_tool_info_response),
picker_tool);
hbox = gtk_hbox_new (FALSE, 6);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 6);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (picker_tool->dialog)->vbox), hbox,
FALSE, FALSE, 0);
gtk_widget_show (hbox);
picker_tool->color_frame1 = gimp_color_frame_new ();
gimp_color_frame_set_mode (GIMP_COLOR_FRAME (picker_tool->color_frame1),
GIMP_COLOR_FRAME_MODE_PIXEL);
gtk_box_pack_start (GTK_BOX (hbox), picker_tool->color_frame1,
FALSE, FALSE, 0);
gtk_widget_show (picker_tool->color_frame1);
picker_tool->color_frame2 = gimp_color_frame_new ();
gimp_color_frame_set_mode (GIMP_COLOR_FRAME (picker_tool->color_frame2),
GIMP_COLOR_FRAME_MODE_RGB);
gtk_box_pack_start (GTK_BOX (hbox), picker_tool->color_frame2,
FALSE, FALSE, 0);
gtk_widget_show (picker_tool->color_frame2);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
gimp_rgba_set (&color, 0.0, 0.0, 0.0, 0.0);
picker_tool->color_area =
gimp_color_area_new (&color,
gimp_drawable_has_alpha (tool->drawable) ?
GIMP_COLOR_AREA_LARGE_CHECKS :
GIMP_COLOR_AREA_FLAT,
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK);
gtk_widget_set_size_request (picker_tool->color_area, 48, -1);
gtk_drag_dest_unset (picker_tool->color_area);
gtk_container_add (GTK_CONTAINER (frame), picker_tool->color_area);
gtk_widget_show (picker_tool->color_area);
}
static void
gimp_color_picker_tool_info_response (GtkWidget *widget,
gint response_id,
GimpColorPickerTool *picker_tool)
{
gtk_widget_destroy (picker_tool->dialog);
picker_tool->dialog = NULL;
picker_tool->color_area = NULL;
picker_tool->color_frame1 = NULL;
picker_tool->color_frame2 = NULL;
}
static void
gimp_color_picker_tool_info_update (GimpColorPickerTool *picker_tool,
GimpImageType sample_type,
GimpRGB *color,
gint color_index)
{
gimp_color_area_set_color (GIMP_COLOR_AREA (picker_tool->color_area), color);
gimp_color_frame_set_color (GIMP_COLOR_FRAME (picker_tool->color_frame1),
sample_type, color, color_index);
gimp_color_frame_set_color (GIMP_COLOR_FRAME (picker_tool->color_frame2),
sample_type, color, color_index);
if (GTK_WIDGET_VISIBLE (picker_tool->dialog))
gdk_window_show (picker_tool->dialog->window);
else
gtk_widget_show (picker_tool->dialog);
}
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