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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimppickbutton.c
* Copyright (C) 2002 Michael Natterer <mitch@gimp.org>
*
* based on gtk+/gtk/gtkcolorsel.c
*
* 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
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpcolor/gimpcolor.h"
#include "gimpwidgetstypes.h"
#include "gimpcairo-utils.h"
#include "gimphelpui.h"
#include "gimpicons.h"
#include "gimppickbutton.h"
#include "gimppickbutton-default.h"
#include "gimppickbutton-kwin.h"
#ifdef GDK_WINDOWING_QUARTZ
#include "gimppickbutton-quartz.h"
#endif
#include "libgimp/libgimp-intl.h"
/**
* SECTION: gimppickbutton
* @title: GimpPickButton
* @short_description: Widget to pick a color from screen.
*
* #GimpPickButton is a specialized button. When clicked, it changes
* the cursor to a color-picker pipette and allows the user to pick a
* color from any point on the screen.
**/
enum
{
COLOR_PICKED,
LAST_SIGNAL
};
static void gimp_pick_button_dispose (GObject *object);
static void gimp_pick_button_clicked (GtkButton *button);
G_DEFINE_TYPE (GimpPickButton, gimp_pick_button, GTK_TYPE_BUTTON)
#define parent_class gimp_pick_button_parent_class
static guint pick_button_signals[LAST_SIGNAL] = { 0 };
static void
gimp_pick_button_class_init (GimpPickButtonClass* klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkButtonClass *button_class = GTK_BUTTON_CLASS (klass);
/**
* GimpPickButton::color-picked:
* @gimppickbutton: the object which received the signal.
* @arg1: pointer to a #GimpRGB structure that holds the picked color
*
* This signal is emitted when the user has picked a color.
**/
pick_button_signals[COLOR_PICKED] =
g_signal_new ("color-picked",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpPickButtonClass, color_picked),
NULL, NULL,
g_cclosure_marshal_VOID__POINTER,
G_TYPE_NONE, 1,
G_TYPE_POINTER);
object_class->dispose = gimp_pick_button_dispose;
button_class->clicked = gimp_pick_button_clicked;
klass->color_picked = NULL;
}
static void
gimp_pick_button_init (GimpPickButton *button)
{
GtkWidget *image;
image = gtk_image_new_from_icon_name (GIMP_ICON_COLOR_PICK_FROM_SCREEN,
GTK_ICON_SIZE_BUTTON);
gtk_container_add (GTK_CONTAINER (button), image);
gtk_widget_show (image);
gimp_help_set_help_data (GTK_WIDGET (button),
_("Click the eyedropper, then click a color "
"anywhere on your screen to select that color."),
NULL);
}
static void
gimp_pick_button_dispose (GObject *object)
{
GimpPickButton *button = GIMP_PICK_BUTTON (object);
if (button->cursor)
{
gdk_cursor_unref (button->cursor);
button->cursor = NULL;
}
if (button->grab_widget)
{
gtk_widget_destroy (button->grab_widget);
button->grab_widget = NULL;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_pick_button_clicked (GtkButton *button)
{
#ifdef GDK_WINDOWING_QUARTZ
_gimp_pick_button_quartz_pick (GIMP_PICK_BUTTON (button));
#else
if (_gimp_pick_button_kwin_available ())
_gimp_pick_button_kwin_pick (GIMP_PICK_BUTTON (button));
else
_gimp_pick_button_default_pick (GIMP_PICK_BUTTON (button));
#endif
}
/* public functions */
/**
* gimp_pick_button_new:
*
* Creates a new #GimpPickButton widget.
*
* Returns: A new #GimpPickButton widget.
**/
GtkWidget *
gimp_pick_button_new (void)
{
return g_object_new (GIMP_TYPE_PICK_BUTTON, NULL);
}
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