libgimpwidgets/Makefile.am new widget derived from GtkButton. It adds an
2001-05-06 Michael Natterer <mitch@gimp.org> * libgimpwidgets/Makefile.am * libgimpwidgets/gimpbutton.[ch]: new widget derived from GtkButton. It adds an "extended_clicked" signal which is emitted instead of "clicked" if a modifier was pressed. * libgimpwidgets/gimpchainbutton.[ch] * libgimpwidgets/gimppixmap.[ch]: removed the opaque typedefs. * libgimpwidgets/gimpwidgets.h * libgimpwidgets/gimpwidgetstypes.h: and added them here. Added GimpButton. * app/widgets/gimpdrawablelistview.c: use GimpButtons for "Raise" and "Lower" and raise/lower to top/bottom on shift-click.
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Michael Natterer
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Michael Natterer
Michael Natterer
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libgimpwidgets/gimpbutton.c
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191
libgimpwidgets/gimpbutton.c
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/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimpbutton.c
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* Copyright (C) 2000 Michael Natterer <mitch@gimp.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gtk/gtk.h>
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#include "gimpwidgetstypes.h"
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#include "gimpbutton.h"
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enum
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{
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EXTENDED_CLICKED,
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LAST_SIGNAL
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};
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static void gimp_button_class_init (GimpButtonClass *klass);
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static void gimp_button_init (GimpButton *button);
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static gboolean gimp_button_button_press (GtkWidget *widget,
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GdkEventButton *event);
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static gboolean gimp_button_button_release (GtkWidget *widget,
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GdkEventButton *event);
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static guint button_signals[LAST_SIGNAL] = { 0 };
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static GtkButtonClass *parent_class = NULL;
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GtkType
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gimp_button_get_type (void)
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{
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static guint button_type = 0;
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if (!button_type)
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{
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GtkTypeInfo button_info =
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{
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"GimpButton",
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sizeof (GimpButton),
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sizeof (GimpButtonClass),
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(GtkClassInitFunc) gimp_button_class_init,
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(GtkObjectInitFunc) gimp_button_init,
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/* reserved_1 */ NULL,
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/* reserved_2 */ NULL,
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(GtkClassInitFunc) NULL
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};
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button_type = gtk_type_unique (GTK_TYPE_BUTTON, &button_info);
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}
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return button_type;
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}
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static void
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gimp_button_class_init (GimpButtonClass *klass)
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{
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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object_class = (GtkObjectClass *) klass;
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widget_class = (GtkWidgetClass *) klass;
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parent_class = gtk_type_class (GTK_TYPE_BUTTON);
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button_signals[EXTENDED_CLICKED] =
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gtk_signal_new ("extended_clicked",
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GTK_RUN_FIRST,
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object_class->type,
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GTK_SIGNAL_OFFSET (GimpButtonClass,
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extended_clicked),
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gtk_marshal_NONE__UINT,
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GTK_TYPE_NONE, 1,
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GTK_TYPE_UINT);
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gtk_object_class_add_signals (object_class, button_signals, LAST_SIGNAL);
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widget_class->button_press_event = gimp_button_button_press;
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widget_class->button_release_event = gimp_button_button_release;
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}
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static void
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gimp_button_init (GimpButton *button)
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{
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button->press_state = 0;
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}
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/**
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* gimp_button_new:
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*
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* Creates a new #GimpButton widget.
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*
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* Returns: A pointer to the new #GimpButton widget.
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**/
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GtkWidget *
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gimp_button_new (void)
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{
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GimpButton *button;
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button = gtk_type_new (GIMP_TYPE_BUTTON);
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return GTK_WIDGET (button);
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}
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static gboolean
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gimp_button_button_press (GtkWidget *widget,
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GdkEventButton *bevent)
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{
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g_return_val_if_fail (widget != NULL, FALSE);
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g_return_val_if_fail (GIMP_IS_BUTTON (widget), FALSE);
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g_return_val_if_fail (bevent != NULL, FALSE);
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if (bevent->type == GDK_BUTTON_PRESS && bevent->button == 1)
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{
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GimpButton *button;
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button = GIMP_BUTTON (widget);
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button->press_state = bevent->state;
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}
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if (GTK_WIDGET_CLASS (parent_class)->button_press_event)
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GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, bevent);
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return TRUE;
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}
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static gint
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gimp_button_button_release (GtkWidget *widget,
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GdkEventButton *bevent)
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{
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gboolean in_button = FALSE;
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g_return_val_if_fail (widget != NULL, FALSE);
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g_return_val_if_fail (GIMP_IS_BUTTON (widget), FALSE);
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g_return_val_if_fail (bevent != NULL, FALSE);
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if (bevent->button == 1)
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{
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GtkButton *button;
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button = GTK_BUTTON (widget);
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in_button = button->in_button;
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if (in_button &&
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(GIMP_BUTTON (button)->press_state &
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(GDK_SHIFT_MASK | GDK_CONTROL_MASK | GDK_MOD1_MASK)))
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{
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gtk_signal_emit (GTK_OBJECT (widget),
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button_signals[EXTENDED_CLICKED],
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GIMP_BUTTON (button)->press_state);
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button->in_button = FALSE;
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}
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}
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if (GTK_WIDGET_CLASS (parent_class)->button_release_event)
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GTK_WIDGET_CLASS (parent_class)->button_release_event (widget, bevent);
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if (bevent->button == 1 && in_button)
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{
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gtk_widget_set_state (widget, GTK_STATE_PRELIGHT);
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gtk_widget_draw (widget, NULL);
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}
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return TRUE;
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}
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