mirror of https://github.com/GNOME/gimp.git
903 lines
28 KiB
C
903 lines
28 KiB
C
/* LIBGIMP - The GIMP Library
|
|
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
|
|
*
|
|
* gimpcolorbutton.c
|
|
* Copyright (C) 1999-2001 Sven Neumann
|
|
*
|
|
* This library is free software: you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 3 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see
|
|
* <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <string.h>
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
#include "libgimpcolor/gimpcolor.h"
|
|
|
|
#include "gimpwidgetstypes.h"
|
|
|
|
#include "gimpcolorarea.h"
|
|
#include "gimpcolorbutton.h"
|
|
#include "gimpcolornotebook.h"
|
|
#include "gimpcolorselection.h"
|
|
#include "gimpdialog.h"
|
|
#include "gimphelpui.h"
|
|
#include "gimpstock.h"
|
|
#include "gimpwidgets-private.h"
|
|
|
|
#include "libgimp/libgimp-intl.h"
|
|
|
|
|
|
/**
|
|
* SECTION: gimpcolorbutton
|
|
* @title: GimpColorButton
|
|
* @short_description: Widget for selecting a color from a simple button.
|
|
* @see_also: #libgimpcolor-gimpcolorspace
|
|
*
|
|
* This widget provides a simple button with a preview showing the
|
|
* color.
|
|
*
|
|
* On click a color selection dialog is opened. Additionally the
|
|
* button supports Drag and Drop and has a right-click menu that
|
|
* allows to choose the color from the current FG or BG color. If the
|
|
* user changes the color, the "color-changed" signal is emitted.
|
|
**/
|
|
|
|
|
|
#define COLOR_SELECTION_KEY "gimp-color-selection"
|
|
#define RESPONSE_RESET 1
|
|
|
|
#define TODOUBLE(i) (i / 65535.0)
|
|
#define TOUINT16(d) ((guint16) (d * 65535 + 0.5))
|
|
|
|
|
|
#define GIMP_COLOR_BUTTON_COLOR_FG "color-button-use-foreground"
|
|
#define GIMP_COLOR_BUTTON_COLOR_BG "color-button-use-background"
|
|
#define GIMP_COLOR_BUTTON_COLOR_BLACK "color-button-use-black"
|
|
#define GIMP_COLOR_BUTTON_COLOR_WHITE "color-button-use-white"
|
|
|
|
|
|
enum
|
|
{
|
|
COLOR_CHANGED,
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
enum
|
|
{
|
|
PROP_0,
|
|
PROP_TITLE,
|
|
PROP_COLOR,
|
|
PROP_TYPE,
|
|
PROP_UPDATE,
|
|
PROP_AREA_WIDTH,
|
|
PROP_AREA_HEIGHT
|
|
};
|
|
|
|
|
|
static void gimp_color_button_class_init (GimpColorButtonClass *klass);
|
|
static void gimp_color_button_init (GimpColorButton *button,
|
|
GimpColorButtonClass *klass);
|
|
|
|
static void gimp_color_button_finalize (GObject *object);
|
|
static void gimp_color_button_dispose (GObject *object);
|
|
static void gimp_color_button_get_property (GObject *object,
|
|
guint property_id,
|
|
GValue *value,
|
|
GParamSpec *pspec);
|
|
static void gimp_color_button_set_property (GObject *object,
|
|
guint property_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec);
|
|
|
|
static gboolean gimp_color_button_button_press (GtkWidget *widget,
|
|
GdkEventButton *bevent);
|
|
static void gimp_color_button_state_changed (GtkWidget *widget,
|
|
GtkStateType prev_state);
|
|
static void gimp_color_button_clicked (GtkButton *button);
|
|
static GType gimp_color_button_get_action_type (GimpColorButton *button);
|
|
|
|
static void gimp_color_button_dialog_response (GtkWidget *dialog,
|
|
gint response_id,
|
|
GimpColorButton *button);
|
|
static void gimp_color_button_use_color (GtkAction *action,
|
|
GimpColorButton *button);
|
|
static void gimp_color_button_area_changed (GtkWidget *color_area,
|
|
GimpColorButton *button);
|
|
static void gimp_color_button_selection_changed (GtkWidget *selection,
|
|
GimpColorButton *button);
|
|
static void gimp_color_button_help_func (const gchar *help_id,
|
|
gpointer help_data);
|
|
|
|
|
|
static const GtkActionEntry actions[] =
|
|
{
|
|
{ "color-button-popup", NULL,
|
|
"Color Button Menu", NULL, NULL,
|
|
NULL
|
|
},
|
|
|
|
{ GIMP_COLOR_BUTTON_COLOR_FG, NULL,
|
|
N_("_Foreground Color"), NULL, NULL,
|
|
G_CALLBACK (gimp_color_button_use_color)
|
|
},
|
|
{ GIMP_COLOR_BUTTON_COLOR_BG, NULL,
|
|
N_("_Background Color"), NULL, NULL,
|
|
G_CALLBACK (gimp_color_button_use_color)
|
|
},
|
|
{ GIMP_COLOR_BUTTON_COLOR_BLACK, NULL,
|
|
N_("Blac_k"), NULL, NULL,
|
|
G_CALLBACK (gimp_color_button_use_color)
|
|
},
|
|
{ GIMP_COLOR_BUTTON_COLOR_WHITE, NULL,
|
|
N_("_White"), NULL, NULL,
|
|
G_CALLBACK (gimp_color_button_use_color)
|
|
}
|
|
};
|
|
|
|
static guint gimp_color_button_signals[LAST_SIGNAL] = { 0 };
|
|
|
|
static GimpButtonClass * parent_class = NULL;
|
|
|
|
|
|
GType
|
|
gimp_color_button_get_type (void)
|
|
{
|
|
static GType button_type = 0;
|
|
|
|
if (! button_type)
|
|
{
|
|
const GTypeInfo button_info =
|
|
{
|
|
sizeof (GimpColorButtonClass),
|
|
(GBaseInitFunc) NULL,
|
|
(GBaseFinalizeFunc) NULL,
|
|
(GClassInitFunc) gimp_color_button_class_init,
|
|
NULL, /* class_finalize */
|
|
NULL, /* class_data */
|
|
sizeof (GimpColorButton),
|
|
0, /* n_preallocs */
|
|
(GInstanceInitFunc) gimp_color_button_init,
|
|
};
|
|
|
|
button_type = g_type_register_static (GIMP_TYPE_BUTTON,
|
|
"GimpColorButton",
|
|
&button_info, 0);
|
|
}
|
|
|
|
return button_type;
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_class_init (GimpColorButtonClass *klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
|
|
GtkButtonClass *button_class = GTK_BUTTON_CLASS (klass);
|
|
GimpRGB color;
|
|
|
|
parent_class = g_type_class_peek_parent (klass);
|
|
|
|
gimp_color_button_signals[COLOR_CHANGED] =
|
|
g_signal_new ("color-changed",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST,
|
|
G_STRUCT_OFFSET (GimpColorButtonClass, color_changed),
|
|
NULL, NULL,
|
|
g_cclosure_marshal_VOID__VOID,
|
|
G_TYPE_NONE, 0);
|
|
|
|
object_class->finalize = gimp_color_button_finalize;
|
|
object_class->dispose = gimp_color_button_dispose;
|
|
object_class->get_property = gimp_color_button_get_property;
|
|
object_class->set_property = gimp_color_button_set_property;
|
|
|
|
widget_class->button_press_event = gimp_color_button_button_press;
|
|
widget_class->state_changed = gimp_color_button_state_changed;
|
|
|
|
button_class->clicked = gimp_color_button_clicked;
|
|
|
|
klass->color_changed = NULL;
|
|
klass->get_action_type = gimp_color_button_get_action_type;
|
|
|
|
gimp_rgba_set (&color, 0.0, 0.0, 0.0, 1.0);
|
|
|
|
/**
|
|
* GimpColorButton:title:
|
|
*
|
|
* The title to be used for the color selection dialog.
|
|
*
|
|
* Since: GIMP 2.4
|
|
*/
|
|
g_object_class_install_property (object_class, PROP_TITLE,
|
|
g_param_spec_string ("title", NULL, NULL,
|
|
NULL,
|
|
GIMP_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT_ONLY));
|
|
/**
|
|
* GimpColorButton:color:
|
|
*
|
|
* The color displayed in the button's color area.
|
|
*
|
|
* Since: GIMP 2.4
|
|
*/
|
|
g_object_class_install_property (object_class, PROP_COLOR,
|
|
gimp_param_spec_rgb ("color", NULL, NULL,
|
|
TRUE, &color,
|
|
GIMP_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT));
|
|
/**
|
|
* GimpColorButton:type:
|
|
*
|
|
* The type of the button's color area.
|
|
*
|
|
* Since: GIMP 2.4
|
|
*/
|
|
g_object_class_install_property (object_class, PROP_TYPE,
|
|
g_param_spec_enum ("type", NULL, NULL,
|
|
GIMP_TYPE_COLOR_AREA_TYPE,
|
|
GIMP_COLOR_AREA_FLAT,
|
|
GIMP_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT));
|
|
/**
|
|
* GimpColorButton:continuous-update:
|
|
*
|
|
* The update policy of the color button.
|
|
*
|
|
* Since: GIMP 2.4
|
|
*/
|
|
g_object_class_install_property (object_class, PROP_UPDATE,
|
|
g_param_spec_boolean ("continuous-update",
|
|
NULL, NULL,
|
|
FALSE,
|
|
G_PARAM_READWRITE |
|
|
G_PARAM_CONSTRUCT));
|
|
|
|
/**
|
|
* GimpColorButton:area-width:
|
|
*
|
|
* The minimum width of the button's #GimpColorArea.
|
|
*
|
|
* Since: GIMP 2.8
|
|
*/
|
|
g_object_class_install_property (object_class, PROP_AREA_WIDTH,
|
|
g_param_spec_int ("area-width",
|
|
NULL, NULL,
|
|
1, G_MAXINT, 16,
|
|
G_PARAM_WRITABLE |
|
|
G_PARAM_CONSTRUCT));
|
|
|
|
/**
|
|
* GimpColorButton:area-height:
|
|
*
|
|
* The minimum height of the button's #GimpColorArea.
|
|
*
|
|
* Since: GIMP 2.8
|
|
*/
|
|
g_object_class_install_property (object_class, PROP_AREA_HEIGHT,
|
|
g_param_spec_int ("area-height",
|
|
NULL, NULL,
|
|
1, G_MAXINT, 16,
|
|
G_PARAM_WRITABLE |
|
|
G_PARAM_CONSTRUCT));
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_init (GimpColorButton *button,
|
|
GimpColorButtonClass *klass)
|
|
{
|
|
GtkActionGroup *group;
|
|
GtkUIManager *ui_manager;
|
|
gint i;
|
|
|
|
button->title = NULL;
|
|
button->dialog = NULL;
|
|
|
|
button->color_area = g_object_new (GIMP_TYPE_COLOR_AREA,
|
|
"drag-mask", GDK_BUTTON1_MASK,
|
|
NULL);
|
|
|
|
g_signal_connect (button->color_area, "color-changed",
|
|
G_CALLBACK (gimp_color_button_area_changed),
|
|
button);
|
|
|
|
gtk_container_add (GTK_CONTAINER (button), button->color_area);
|
|
gtk_widget_show (button->color_area);
|
|
|
|
/* right-click opens a popup */
|
|
button->popup_menu = ui_manager = gtk_ui_manager_new ();
|
|
|
|
group = gtk_action_group_new ("color-button");
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (actions); i++)
|
|
{
|
|
const gchar *label = gettext (actions[i].label);
|
|
const gchar *tooltip = gettext (actions[i].tooltip);
|
|
GtkAction *action;
|
|
|
|
action = g_object_new (klass->get_action_type (button),
|
|
"name", actions[i].name,
|
|
"label", label,
|
|
"tooltip", tooltip,
|
|
"stock-id", actions[i].stock_id,
|
|
NULL);
|
|
|
|
if (actions[i].callback)
|
|
g_signal_connect (action, "activate",
|
|
actions[i].callback,
|
|
button);
|
|
|
|
gtk_action_group_add_action_with_accel (group, action,
|
|
actions[i].accelerator);
|
|
|
|
g_object_unref (action);
|
|
}
|
|
|
|
gtk_ui_manager_insert_action_group (ui_manager, group, -1);
|
|
g_object_unref (group);
|
|
|
|
gtk_ui_manager_add_ui_from_string
|
|
(ui_manager,
|
|
"<ui>\n"
|
|
" <popup action=\"color-button-popup\">\n"
|
|
" <menuitem action=\"" GIMP_COLOR_BUTTON_COLOR_FG "\" />\n"
|
|
" <menuitem action=\"" GIMP_COLOR_BUTTON_COLOR_BG "\" />\n"
|
|
" <separator />\n"
|
|
" <menuitem action=\"" GIMP_COLOR_BUTTON_COLOR_BLACK "\" />\n"
|
|
" <menuitem action=\"" GIMP_COLOR_BUTTON_COLOR_WHITE "\" />\n"
|
|
" </popup>\n"
|
|
"</ui>\n",
|
|
-1, NULL);
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_finalize (GObject *object)
|
|
{
|
|
GimpColorButton *button = GIMP_COLOR_BUTTON (object);
|
|
|
|
if (button->title)
|
|
{
|
|
g_free (button->title);
|
|
button->title = NULL;
|
|
}
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_dispose (GObject *object)
|
|
{
|
|
GimpColorButton *button = GIMP_COLOR_BUTTON (object);
|
|
|
|
if (button->dialog)
|
|
{
|
|
gtk_widget_destroy (button->dialog);
|
|
button->dialog = NULL;
|
|
}
|
|
|
|
if (button->color_area)
|
|
{
|
|
gtk_widget_destroy (button->color_area);
|
|
button->color_area = NULL;
|
|
}
|
|
|
|
if (button->popup_menu)
|
|
{
|
|
g_object_unref (button->popup_menu);
|
|
button->popup_menu = NULL;
|
|
}
|
|
|
|
G_OBJECT_CLASS (parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_get_property (GObject *object,
|
|
guint property_id,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
GimpColorButton *button = GIMP_COLOR_BUTTON (object);
|
|
|
|
switch (property_id)
|
|
{
|
|
case PROP_TITLE:
|
|
g_value_set_string (value, button->title);
|
|
break;
|
|
|
|
case PROP_COLOR:
|
|
g_object_get_property (G_OBJECT (button->color_area), "color", value);
|
|
break;
|
|
|
|
case PROP_TYPE:
|
|
g_object_get_property (G_OBJECT (button->color_area), "type", value);
|
|
break;
|
|
|
|
case PROP_UPDATE:
|
|
g_value_set_boolean (value, button->continuous_update);
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_set_property (GObject *object,
|
|
guint property_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
GimpColorButton *button = GIMP_COLOR_BUTTON (object);
|
|
gint other;
|
|
|
|
switch (property_id)
|
|
{
|
|
case PROP_TITLE:
|
|
g_free (button->title);
|
|
button->title = g_value_dup_string (value);
|
|
break;
|
|
|
|
case PROP_COLOR:
|
|
g_object_set_property (G_OBJECT (button->color_area), "color", value);
|
|
break;
|
|
|
|
case PROP_TYPE:
|
|
g_object_set_property (G_OBJECT (button->color_area), "type", value);
|
|
break;
|
|
|
|
case PROP_UPDATE:
|
|
gimp_color_button_set_update (button, g_value_get_boolean (value));
|
|
break;
|
|
|
|
case PROP_AREA_WIDTH:
|
|
gtk_widget_get_size_request (button->color_area, NULL, &other);
|
|
gtk_widget_set_size_request (button->color_area,
|
|
g_value_get_int (value), other);
|
|
break;
|
|
|
|
case PROP_AREA_HEIGHT:
|
|
gtk_widget_get_size_request (button->color_area, &other, NULL);
|
|
gtk_widget_set_size_request (button->color_area,
|
|
other, g_value_get_int (value));
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gimp_color_button_button_press (GtkWidget *widget,
|
|
GdkEventButton *bevent)
|
|
{
|
|
GimpColorButton *button = GIMP_COLOR_BUTTON (widget);
|
|
|
|
if (bevent->button == 3)
|
|
{
|
|
GtkWidget *menu = gtk_ui_manager_get_widget (button->popup_menu,
|
|
"/color-button-popup");
|
|
|
|
gtk_menu_set_screen (GTK_MENU (menu), gtk_widget_get_screen (widget));
|
|
|
|
gtk_menu_popup (GTK_MENU (menu),
|
|
NULL, NULL, NULL, NULL,
|
|
bevent->button, bevent->time);
|
|
}
|
|
|
|
if (GTK_WIDGET_CLASS (parent_class)->button_press_event)
|
|
return GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, bevent);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_state_changed (GtkWidget *widget,
|
|
GtkStateType prev_state)
|
|
{
|
|
g_return_if_fail (GIMP_IS_COLOR_BUTTON (widget));
|
|
|
|
if (! gtk_widget_is_sensitive (widget) && GIMP_COLOR_BUTTON (widget)->dialog)
|
|
gtk_widget_hide (GIMP_COLOR_BUTTON (widget)->dialog);
|
|
|
|
if (GTK_WIDGET_CLASS (parent_class)->state_changed)
|
|
GTK_WIDGET_CLASS (parent_class)->state_changed (widget, prev_state);
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_clicked (GtkButton *button)
|
|
{
|
|
GimpColorButton *color_button = GIMP_COLOR_BUTTON (button);
|
|
|
|
if (! color_button->dialog)
|
|
{
|
|
GtkWidget *dialog;
|
|
GtkWidget *selection;
|
|
GimpRGB color;
|
|
|
|
gimp_color_button_get_color (color_button, &color);
|
|
|
|
dialog = color_button->dialog =
|
|
gimp_dialog_new (color_button->title, COLOR_SELECTION_KEY,
|
|
gtk_widget_get_toplevel (GTK_WIDGET (button)), 0,
|
|
gimp_color_button_help_func, NULL,
|
|
|
|
GIMP_STOCK_RESET, RESPONSE_RESET,
|
|
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
|
|
GTK_STOCK_OK, GTK_RESPONSE_OK,
|
|
|
|
NULL);
|
|
|
|
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
|
|
RESPONSE_RESET,
|
|
GTK_RESPONSE_OK,
|
|
GTK_RESPONSE_CANCEL,
|
|
-1);
|
|
|
|
g_signal_connect (dialog, "response",
|
|
G_CALLBACK (gimp_color_button_dialog_response),
|
|
color_button);
|
|
g_signal_connect (dialog, "destroy",
|
|
G_CALLBACK (gtk_widget_destroyed),
|
|
&color_button->dialog);
|
|
|
|
selection = gimp_color_selection_new ();
|
|
gtk_container_set_border_width (GTK_CONTAINER (selection), 6);
|
|
gimp_color_selection_set_show_alpha (GIMP_COLOR_SELECTION (selection),
|
|
gimp_color_button_has_alpha (color_button));
|
|
gimp_color_selection_set_color (GIMP_COLOR_SELECTION (selection), &color);
|
|
gimp_color_selection_set_old_color (GIMP_COLOR_SELECTION (selection),
|
|
&color);
|
|
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
|
|
selection, TRUE, TRUE, 0);
|
|
gtk_widget_show (selection);
|
|
|
|
g_signal_connect (selection, "color-changed",
|
|
G_CALLBACK (gimp_color_button_selection_changed),
|
|
button);
|
|
|
|
g_object_set_data (G_OBJECT (color_button->dialog), COLOR_SELECTION_KEY,
|
|
selection);
|
|
}
|
|
|
|
gtk_window_present (GTK_WINDOW (color_button->dialog));
|
|
}
|
|
|
|
static GType
|
|
gimp_color_button_get_action_type (GimpColorButton *button)
|
|
{
|
|
return GTK_TYPE_ACTION;
|
|
}
|
|
|
|
|
|
/* public functions */
|
|
|
|
/**
|
|
* gimp_color_button_new:
|
|
* @title: String that will be used as title for the color_selector.
|
|
* @width: Width of the colorpreview in pixels.
|
|
* @height: Height of the colorpreview in pixels.
|
|
* @color: A pointer to a #GimpRGB color.
|
|
* @type: The type of transparency to be displayed.
|
|
*
|
|
* Creates a new #GimpColorButton widget.
|
|
*
|
|
* This returns a button with a preview showing the color.
|
|
* When the button is clicked a GtkColorSelectionDialog is opened.
|
|
* If the user changes the color the new color is written into the
|
|
* array that was used to pass the initial color and the "color-changed"
|
|
* signal is emitted.
|
|
*
|
|
* Returns: Pointer to the new #GimpColorButton widget.
|
|
**/
|
|
GtkWidget *
|
|
gimp_color_button_new (const gchar *title,
|
|
gint width,
|
|
gint height,
|
|
const GimpRGB *color,
|
|
GimpColorAreaType type)
|
|
{
|
|
g_return_val_if_fail (color != NULL, NULL);
|
|
g_return_val_if_fail (width > 0, NULL);
|
|
g_return_val_if_fail (height > 0, NULL);
|
|
|
|
return g_object_new (GIMP_TYPE_COLOR_BUTTON,
|
|
"title", title,
|
|
"type", type,
|
|
"color", color,
|
|
"area-width", width,
|
|
"area-height", height,
|
|
NULL);
|
|
}
|
|
|
|
/**
|
|
* gimp_color_button_set_color:
|
|
* @button: Pointer to a #GimpColorButton.
|
|
* @color: Pointer to the new #GimpRGB color.
|
|
*
|
|
* Sets the @button to the given @color.
|
|
**/
|
|
void
|
|
gimp_color_button_set_color (GimpColorButton *button,
|
|
const GimpRGB *color)
|
|
{
|
|
g_return_if_fail (GIMP_IS_COLOR_BUTTON (button));
|
|
g_return_if_fail (color != NULL);
|
|
|
|
gimp_color_area_set_color (GIMP_COLOR_AREA (button->color_area), color);
|
|
|
|
g_object_notify (G_OBJECT (button), "color");
|
|
}
|
|
|
|
/**
|
|
* gimp_color_button_get_color:
|
|
* @button: Pointer to a #GimpColorButton.
|
|
* @color: Pointer to a #GimpRGB struct used to return the color.
|
|
*
|
|
* Retrieves the currently set color from the @button.
|
|
**/
|
|
void
|
|
gimp_color_button_get_color (GimpColorButton *button,
|
|
GimpRGB *color)
|
|
{
|
|
g_return_if_fail (GIMP_IS_COLOR_BUTTON (button));
|
|
g_return_if_fail (color != NULL);
|
|
|
|
gimp_color_area_get_color (GIMP_COLOR_AREA (button->color_area), color);
|
|
}
|
|
|
|
/**
|
|
* gimp_color_button_has_alpha:
|
|
* @button: Pointer to a #GimpColorButton.
|
|
*
|
|
* Checks whether the @buttons shows transparency information.
|
|
*
|
|
* Returns: %TRUE if the @button shows transparency information, %FALSE
|
|
* otherwise.
|
|
**/
|
|
gboolean
|
|
gimp_color_button_has_alpha (GimpColorButton *button)
|
|
{
|
|
g_return_val_if_fail (GIMP_IS_COLOR_BUTTON (button), FALSE);
|
|
|
|
return gimp_color_area_has_alpha (GIMP_COLOR_AREA (button->color_area));
|
|
}
|
|
|
|
/**
|
|
* gimp_color_button_set_type:
|
|
* @button: Pointer to a #GimpColorButton.
|
|
* @type: the new #GimpColorAreaType
|
|
*
|
|
* Sets the @button to the given @type. See also gimp_color_area_set_type().
|
|
**/
|
|
void
|
|
gimp_color_button_set_type (GimpColorButton *button,
|
|
GimpColorAreaType type)
|
|
{
|
|
g_return_if_fail (GIMP_IS_COLOR_BUTTON (button));
|
|
|
|
gimp_color_area_set_type (GIMP_COLOR_AREA (button->color_area), type);
|
|
|
|
g_object_notify (G_OBJECT (button), "type");
|
|
}
|
|
|
|
/**
|
|
* gimp_color_button_get_update:
|
|
* @button: A #GimpColorButton widget.
|
|
*
|
|
* Returns the color button's @continuous_update property.
|
|
*
|
|
* Return value: the @continuous_update property.
|
|
**/
|
|
gboolean
|
|
gimp_color_button_get_update (GimpColorButton *button)
|
|
{
|
|
g_return_val_if_fail (GIMP_IS_COLOR_BUTTON (button), FALSE);
|
|
|
|
return button->continuous_update;
|
|
}
|
|
|
|
/**
|
|
* gimp_color_button_set_update:
|
|
* @button: A #GimpColorButton widget.
|
|
* @continuous: The new setting of the @continuous_update property.
|
|
*
|
|
* When set to #TRUE, the @button will emit the "color-changed"
|
|
* continuously while the color is changed in the color selection
|
|
* dialog.
|
|
**/
|
|
void
|
|
gimp_color_button_set_update (GimpColorButton *button,
|
|
gboolean continuous)
|
|
{
|
|
g_return_if_fail (GIMP_IS_COLOR_BUTTON (button));
|
|
|
|
if (continuous != button->continuous_update)
|
|
{
|
|
button->continuous_update = continuous ? TRUE : FALSE;
|
|
|
|
if (button->dialog)
|
|
{
|
|
GimpColorSelection *selection;
|
|
GimpRGB color;
|
|
|
|
selection = g_object_get_data (G_OBJECT (button->dialog),
|
|
COLOR_SELECTION_KEY);
|
|
|
|
if (button->continuous_update)
|
|
{
|
|
gimp_color_selection_get_color (selection, &color);
|
|
gimp_color_button_set_color (button, &color);
|
|
}
|
|
else
|
|
{
|
|
gimp_color_selection_get_old_color (selection, &color);
|
|
gimp_color_button_set_color (button, &color);
|
|
}
|
|
}
|
|
|
|
g_object_notify (G_OBJECT (button), "continuous-update");
|
|
}
|
|
}
|
|
|
|
|
|
/* private functions */
|
|
|
|
static void
|
|
gimp_color_button_dialog_response (GtkWidget *dialog,
|
|
gint response_id,
|
|
GimpColorButton *button)
|
|
{
|
|
GtkWidget *selection;
|
|
GimpRGB color;
|
|
|
|
selection = g_object_get_data (G_OBJECT (dialog), COLOR_SELECTION_KEY);
|
|
|
|
switch (response_id)
|
|
{
|
|
case RESPONSE_RESET:
|
|
gimp_color_selection_reset (GIMP_COLOR_SELECTION (selection));
|
|
break;
|
|
|
|
case GTK_RESPONSE_OK:
|
|
if (! button->continuous_update)
|
|
{
|
|
gimp_color_selection_get_color (GIMP_COLOR_SELECTION (selection),
|
|
&color);
|
|
gimp_color_button_set_color (button, &color);
|
|
}
|
|
|
|
gtk_widget_hide (dialog);
|
|
break;
|
|
|
|
default:
|
|
if (button->continuous_update)
|
|
{
|
|
gimp_color_selection_get_old_color (GIMP_COLOR_SELECTION (selection),
|
|
&color);
|
|
gimp_color_button_set_color (button, &color);
|
|
}
|
|
|
|
gtk_widget_hide (dialog);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_use_color (GtkAction *action,
|
|
GimpColorButton *button)
|
|
{
|
|
const gchar *name;
|
|
GimpRGB color;
|
|
|
|
name = gtk_action_get_name (action);
|
|
gimp_color_button_get_color (button, &color);
|
|
|
|
if (! strcmp (name, GIMP_COLOR_BUTTON_COLOR_FG))
|
|
{
|
|
if (_gimp_get_foreground_func)
|
|
_gimp_get_foreground_func (&color);
|
|
else
|
|
gimp_rgba_set (&color, 0.0, 0.0, 0.0, 1.0);
|
|
}
|
|
else if (! strcmp (name, GIMP_COLOR_BUTTON_COLOR_BG))
|
|
{
|
|
if (_gimp_get_background_func)
|
|
_gimp_get_background_func (&color);
|
|
else
|
|
gimp_rgba_set (&color, 1.0, 1.0, 1.0, 1.0);
|
|
}
|
|
else if (! strcmp (name, GIMP_COLOR_BUTTON_COLOR_BLACK))
|
|
{
|
|
gimp_rgba_set (&color, 0.0, 0.0, 0.0, 1.0);
|
|
}
|
|
else if (! strcmp (name, GIMP_COLOR_BUTTON_COLOR_WHITE))
|
|
{
|
|
gimp_rgba_set (&color, 1.0, 1.0, 1.0, 1.0);
|
|
}
|
|
|
|
gimp_color_button_set_color (button, &color);
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_area_changed (GtkWidget *color_area,
|
|
GimpColorButton *button)
|
|
{
|
|
if (button->dialog)
|
|
{
|
|
GimpColorSelection *selection;
|
|
GimpRGB color;
|
|
|
|
selection = g_object_get_data (G_OBJECT (button->dialog),
|
|
COLOR_SELECTION_KEY);
|
|
|
|
gimp_color_button_get_color (button, &color);
|
|
|
|
g_signal_handlers_block_by_func (selection,
|
|
gimp_color_button_selection_changed,
|
|
button);
|
|
|
|
gimp_color_selection_set_color (selection, &color);
|
|
|
|
g_signal_handlers_unblock_by_func (selection,
|
|
gimp_color_button_selection_changed,
|
|
button);
|
|
}
|
|
|
|
g_signal_emit (button, gimp_color_button_signals[COLOR_CHANGED], 0);
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_selection_changed (GtkWidget *selection,
|
|
GimpColorButton *button)
|
|
{
|
|
if (button->continuous_update)
|
|
{
|
|
GimpRGB color;
|
|
|
|
gimp_color_selection_get_color (GIMP_COLOR_SELECTION (selection), &color);
|
|
|
|
g_signal_handlers_block_by_func (button->color_area,
|
|
gimp_color_button_area_changed,
|
|
button);
|
|
|
|
gimp_color_area_set_color (GIMP_COLOR_AREA (button->color_area), &color);
|
|
|
|
g_signal_handlers_unblock_by_func (button->color_area,
|
|
gimp_color_button_area_changed,
|
|
button);
|
|
|
|
g_signal_emit (button, gimp_color_button_signals[COLOR_CHANGED], 0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_color_button_help_func (const gchar *help_id,
|
|
gpointer help_data)
|
|
{
|
|
GimpColorSelection *selection;
|
|
GimpColorNotebook *notebook;
|
|
|
|
selection = g_object_get_data (G_OBJECT (help_data), COLOR_SELECTION_KEY);
|
|
|
|
notebook = GIMP_COLOR_NOTEBOOK (selection->notebook);
|
|
|
|
help_id = GIMP_COLOR_SELECTOR_GET_CLASS (notebook->cur_page)->help_id;
|
|
|
|
gimp_standard_help_func (help_id, NULL);
|
|
}
|