forked from AuroraMiddleware/gtk
1610 lines
44 KiB
C
1610 lines
44 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 2005 Ronald S. Bultje
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* Copyright (C) 2006, 2007 Christian Persch
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* Copyright (C) 2006 Jan Arne Petersen
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* Copyright (C) 2005-2007 Red Hat, Inc.
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*
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* Authors:
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* - Ronald S. Bultje <rbultje@ronald.bitfreak.net>
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* - Bastien Nocera <bnocera@redhat.com>
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* - Jan Arne Petersen <jpetersen@jpetersen.org>
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* - Christian Persch <chpe@svn.gnome.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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/*
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* Modified by the GTK+ Team and others 2007. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#ifndef _WIN32
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#define _GNU_SOURCE
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#endif
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#include <math.h>
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#include <stdlib.h>
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#include <string.h>
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#include <gdk-pixbuf/gdk-pixbuf.h>
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#include <gdk/gdkkeysyms.h>
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#include "gtkbindings.h"
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#include "gtkframe.h"
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#include "gtkmain.h"
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#include "gtkmarshalers.h"
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#include "gtkorientable.h"
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#include "gtkprivate.h"
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#include "gtkscale.h"
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#include "gtkscalebutton.h"
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#include "gtkstock.h"
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#include "gtkvbox.h"
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#include "gtkwindow.h"
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#include "gtkintl.h"
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/**
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* SECTION:gtkscalebutton
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* @Short_description: A button which pops up a scale
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* @Title: GtkScaleButton
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*
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* #GtkScaleButton provides a button which pops up a scale widget.
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* This kind of widget is commonly used for volume controls in multimedia
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* applications, and GTK+ provides a #GtkVolumeButton subclass that
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* is tailored for this use case.
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*/
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#define SCALE_SIZE 100
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#define CLICK_TIMEOUT 250
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enum
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{
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VALUE_CHANGED,
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POPUP,
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POPDOWN,
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_ORIENTATION,
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PROP_VALUE,
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PROP_SIZE,
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PROP_ADJUSTMENT,
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PROP_ICONS
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};
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struct _GtkScaleButtonPrivate
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{
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GtkWidget *plus_button;
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GtkWidget *minus_button;
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GtkWidget *dock;
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GtkWidget *box;
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GtkWidget *scale;
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GtkWidget *image;
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GtkIconSize size;
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GtkOrientation orientation;
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guint click_id;
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gint click_timeout;
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guint timeout : 1;
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gdouble direction;
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guint32 pop_time;
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gchar **icon_list;
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GdkDevice *grab_pointer;
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GdkDevice *grab_keyboard;
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GtkAdjustment *adjustment; /* needed because it must be settable in init() */
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};
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static GObject* gtk_scale_button_constructor (GType type,
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guint n_construct_properties,
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GObjectConstructParam *construct_params);
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static void gtk_scale_button_dispose (GObject *object);
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static void gtk_scale_button_finalize (GObject *object);
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static void gtk_scale_button_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_scale_button_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_scale_button_set_orientation_private (GtkScaleButton *button,
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GtkOrientation orientation);
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static gboolean gtk_scale_button_scroll (GtkWidget *widget,
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GdkEventScroll *event);
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static void gtk_scale_button_screen_changed (GtkWidget *widget,
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GdkScreen *previous_screen);
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static gboolean gtk_scale_button_press (GtkWidget *widget,
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GdkEventButton *event);
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static gboolean gtk_scale_button_key_release (GtkWidget *widget,
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GdkEventKey *event);
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static void gtk_scale_button_popup (GtkWidget *widget);
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static void gtk_scale_button_popdown (GtkWidget *widget);
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static gboolean cb_dock_button_press (GtkWidget *widget,
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GdkEventButton *event,
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gpointer user_data);
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static gboolean cb_dock_key_release (GtkWidget *widget,
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GdkEventKey *event,
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gpointer user_data);
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static gboolean cb_button_press (GtkWidget *widget,
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GdkEventButton *event,
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gpointer user_data);
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static gboolean cb_button_release (GtkWidget *widget,
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GdkEventButton *event,
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gpointer user_data);
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static void cb_dock_grab_notify (GtkWidget *widget,
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gboolean was_grabbed,
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gpointer user_data);
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static gboolean cb_dock_grab_broken_event (GtkWidget *widget,
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gboolean was_grabbed,
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gpointer user_data);
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static void cb_scale_grab_notify (GtkWidget *widget,
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gboolean was_grabbed,
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gpointer user_data);
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static void gtk_scale_button_update_icon (GtkScaleButton *button);
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static void gtk_scale_button_scale_value_changed(GtkRange *range);
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/* see below for scale definitions */
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static GtkWidget *gtk_scale_button_scale_new (GtkScaleButton *button);
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G_DEFINE_TYPE_WITH_CODE (GtkScaleButton, gtk_scale_button, GTK_TYPE_BUTTON,
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G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
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NULL))
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static guint signals[LAST_SIGNAL] = { 0, };
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static void
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gtk_scale_button_class_init (GtkScaleButtonClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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GtkBindingSet *binding_set;
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g_type_class_add_private (klass, sizeof (GtkScaleButtonPrivate));
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gobject_class->constructor = gtk_scale_button_constructor;
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gobject_class->finalize = gtk_scale_button_finalize;
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gobject_class->dispose = gtk_scale_button_dispose;
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gobject_class->set_property = gtk_scale_button_set_property;
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gobject_class->get_property = gtk_scale_button_get_property;
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widget_class->button_press_event = gtk_scale_button_press;
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widget_class->key_release_event = gtk_scale_button_key_release;
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widget_class->scroll_event = gtk_scale_button_scroll;
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widget_class->screen_changed = gtk_scale_button_screen_changed;
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/**
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* GtkScaleButton:orientation:
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*
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* The orientation of the #GtkScaleButton's popup window.
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*
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* Note that since GTK+ 2.16, #GtkScaleButton implements the
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* #GtkOrientable interface which has its own @orientation
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* property. However we redefine the property here in order to
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* override its default horizontal orientation.
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*
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* Since: 2.14
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**/
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g_object_class_override_property (gobject_class,
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PROP_ORIENTATION,
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"orientation");
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g_object_class_install_property (gobject_class,
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PROP_VALUE,
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g_param_spec_double ("value",
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P_("Value"),
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P_("The value of the scale"),
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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0,
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GTK_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_SIZE,
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g_param_spec_enum ("size",
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P_("Icon size"),
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P_("The icon size"),
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GTK_TYPE_ICON_SIZE,
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GTK_ICON_SIZE_SMALL_TOOLBAR,
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GTK_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_ADJUSTMENT,
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g_param_spec_object ("adjustment",
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P_("Adjustment"),
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P_("The GtkAdjustment that contains the current value of this scale button object"),
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GTK_TYPE_ADJUSTMENT,
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GTK_PARAM_READWRITE));
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/**
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* GtkScaleButton:icons:
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*
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* The names of the icons to be used by the scale button.
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* The first item in the array will be used in the button
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* when the current value is the lowest value, the second
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* item for the highest value. All the subsequent icons will
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* be used for all the other values, spread evenly over the
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* range of values.
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*
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* If there's only one icon name in the @icons array, it will
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* be used for all the values. If only two icon names are in
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* the @icons array, the first one will be used for the bottom
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* 50% of the scale, and the second one for the top 50%.
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*
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* It is recommended to use at least 3 icons so that the
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* #GtkScaleButton reflects the current value of the scale
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* better for the users.
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*
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* Since: 2.12
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*/
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g_object_class_install_property (gobject_class,
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PROP_ICONS,
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g_param_spec_boxed ("icons",
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P_("Icons"),
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P_("List of icon names"),
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G_TYPE_STRV,
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GTK_PARAM_READWRITE));
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/**
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* GtkScaleButton::value-changed:
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* @button: the object which received the signal
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* @value: the new value
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*
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* The ::value-changed signal is emitted when the value field has
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* changed.
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*
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* Since: 2.12
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*/
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signals[VALUE_CHANGED] =
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g_signal_new (I_("value-changed"),
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GtkScaleButtonClass, value_changed),
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NULL, NULL,
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_gtk_marshal_VOID__DOUBLE,
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G_TYPE_NONE, 1, G_TYPE_DOUBLE);
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/**
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* GtkScaleButton::popup:
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* @button: the object which received the signal
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*
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* The ::popup signal is a
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* <link linkend="keybinding-signals">keybinding signal</link>
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* which gets emitted to popup the scale widget.
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*
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* The default bindings for this signal are Space, Enter and Return.
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*
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* Since: 2.12
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*/
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signals[POPUP] =
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g_signal_new_class_handler (I_("popup"),
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G_OBJECT_CLASS_TYPE (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_CALLBACK (gtk_scale_button_popup),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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/**
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* GtkScaleButton::popdown:
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* @button: the object which received the signal
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*
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* The ::popdown signal is a
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* <link linkend="keybinding-signals">keybinding signal</link>
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* which gets emitted to popdown the scale widget.
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*
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* The default binding for this signal is Escape.
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*
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* Since: 2.12
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*/
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signals[POPDOWN] =
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g_signal_new_class_handler (I_("popdown"),
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G_OBJECT_CLASS_TYPE (klass),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_CALLBACK (gtk_scale_button_popdown),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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/* Key bindings */
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binding_set = gtk_binding_set_by_class (widget_class);
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gtk_binding_entry_add_signal (binding_set, GDK_space, 0,
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"popup", 0);
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gtk_binding_entry_add_signal (binding_set, GDK_KP_Space, 0,
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"popup", 0);
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gtk_binding_entry_add_signal (binding_set, GDK_Return, 0,
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"popup", 0);
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gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0,
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"popup", 0);
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gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0,
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"popup", 0);
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gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0,
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"popdown", 0);
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}
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static void
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gtk_scale_button_init (GtkScaleButton *button)
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{
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GtkScaleButtonPrivate *priv;
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GtkWidget *frame;
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button->priv = priv = G_TYPE_INSTANCE_GET_PRIVATE (button,
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GTK_TYPE_SCALE_BUTTON,
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GtkScaleButtonPrivate);
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priv->timeout = FALSE;
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priv->click_id = 0;
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priv->click_timeout = CLICK_TIMEOUT;
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priv->orientation = GTK_ORIENTATION_VERTICAL;
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gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
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gtk_button_set_focus_on_click (GTK_BUTTON (button), FALSE);
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/* image */
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priv->image = gtk_image_new ();
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gtk_container_add (GTK_CONTAINER (button), priv->image);
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gtk_widget_show_all (priv->image);
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/* window */
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priv->dock = gtk_window_new (GTK_WINDOW_POPUP);
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gtk_widget_set_name (priv->dock, "gtk-scalebutton-popup-window");
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g_signal_connect (priv->dock, "button-press-event",
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G_CALLBACK (cb_dock_button_press), button);
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g_signal_connect (priv->dock, "key-release-event",
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G_CALLBACK (cb_dock_key_release), button);
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g_signal_connect (priv->dock, "grab-notify",
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G_CALLBACK (cb_dock_grab_notify), button);
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g_signal_connect (priv->dock, "grab-broken-event",
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G_CALLBACK (cb_dock_grab_broken_event), button);
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gtk_window_set_decorated (GTK_WINDOW (priv->dock), FALSE);
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/* frame */
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frame = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
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gtk_container_add (GTK_CONTAINER (priv->dock), frame);
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/* box for scale and +/- buttons */
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priv->box = gtk_vbox_new (FALSE, 0);
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gtk_container_add (GTK_CONTAINER (frame), priv->box);
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/* + */
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priv->plus_button = gtk_button_new_with_label ("+");
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gtk_button_set_relief (GTK_BUTTON (priv->plus_button), GTK_RELIEF_NONE);
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g_signal_connect (priv->plus_button, "button-press-event",
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G_CALLBACK (cb_button_press), button);
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g_signal_connect (priv->plus_button, "button-release-event",
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G_CALLBACK (cb_button_release), button);
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gtk_box_pack_start (GTK_BOX (priv->box), priv->plus_button, FALSE, FALSE, 0);
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/* - */
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priv->minus_button = gtk_button_new_with_label ("-");
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gtk_button_set_relief (GTK_BUTTON (priv->minus_button), GTK_RELIEF_NONE);
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g_signal_connect (priv->minus_button, "button-press-event",
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G_CALLBACK (cb_button_press), button);
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g_signal_connect (priv->minus_button, "button-release-event",
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G_CALLBACK (cb_button_release), button);
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gtk_box_pack_end (GTK_BOX (priv->box), priv->minus_button, FALSE, FALSE, 0);
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priv->adjustment = GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 100.0, 2, 20, 0));
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g_object_ref_sink (priv->adjustment);
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/* the scale */
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priv->scale = gtk_scale_button_scale_new (button);
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gtk_container_add (GTK_CONTAINER (priv->box), priv->scale);
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}
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static GObject *
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gtk_scale_button_constructor (GType type,
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guint n_construct_properties,
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GObjectConstructParam *construct_params)
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{
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GObject *object;
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GtkScaleButton *button;
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GtkScaleButtonPrivate *priv;
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object = G_OBJECT_CLASS (gtk_scale_button_parent_class)->constructor (type, n_construct_properties, construct_params);
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button = GTK_SCALE_BUTTON (object);
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priv = button->priv;
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/* set button text and size */
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priv->size = GTK_ICON_SIZE_SMALL_TOOLBAR;
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gtk_scale_button_update_icon (button);
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return object;
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}
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static void
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gtk_scale_button_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkScaleButton *button = GTK_SCALE_BUTTON (object);
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switch (prop_id)
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{
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case PROP_ORIENTATION:
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gtk_scale_button_set_orientation_private (button, g_value_get_enum (value));
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break;
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case PROP_VALUE:
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gtk_scale_button_set_value (button, g_value_get_double (value));
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break;
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case PROP_SIZE:
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{
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GtkIconSize size;
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size = g_value_get_enum (value);
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if (button->priv->size != size)
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{
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button->priv->size = size;
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gtk_scale_button_update_icon (button);
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}
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}
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break;
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case PROP_ADJUSTMENT:
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gtk_scale_button_set_adjustment (button, g_value_get_object (value));
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break;
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case PROP_ICONS:
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gtk_scale_button_set_icons (button,
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(const gchar **)g_value_get_boxed (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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|
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static void
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gtk_scale_button_get_property (GObject *object,
|
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guint prop_id,
|
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GValue *value,
|
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GParamSpec *pspec)
|
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{
|
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GtkScaleButton *button = GTK_SCALE_BUTTON (object);
|
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GtkScaleButtonPrivate *priv = button->priv;
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_ORIENTATION:
|
|
g_value_set_enum (value, priv->orientation);
|
|
break;
|
|
case PROP_VALUE:
|
|
g_value_set_double (value, gtk_scale_button_get_value (button));
|
|
break;
|
|
case PROP_SIZE:
|
|
g_value_set_enum (value, priv->size);
|
|
break;
|
|
case PROP_ADJUSTMENT:
|
|
g_value_set_object (value, gtk_scale_button_get_adjustment (button));
|
|
break;
|
|
case PROP_ICONS:
|
|
g_value_set_boxed (value, priv->icon_list);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_scale_button_finalize (GObject *object)
|
|
{
|
|
GtkScaleButton *button = GTK_SCALE_BUTTON (object);
|
|
GtkScaleButtonPrivate *priv = button->priv;
|
|
|
|
if (priv->icon_list)
|
|
{
|
|
g_strfreev (priv->icon_list);
|
|
priv->icon_list = NULL;
|
|
}
|
|
|
|
if (priv->adjustment)
|
|
{
|
|
g_object_unref (priv->adjustment);
|
|
priv->adjustment = NULL;
|
|
}
|
|
|
|
G_OBJECT_CLASS (gtk_scale_button_parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gtk_scale_button_dispose (GObject *object)
|
|
{
|
|
GtkScaleButton *button = GTK_SCALE_BUTTON (object);
|
|
GtkScaleButtonPrivate *priv = button->priv;
|
|
|
|
if (priv->dock)
|
|
{
|
|
gtk_widget_destroy (priv->dock);
|
|
priv->dock = NULL;
|
|
}
|
|
|
|
if (priv->click_id != 0)
|
|
{
|
|
g_source_remove (priv->click_id);
|
|
priv->click_id = 0;
|
|
}
|
|
|
|
G_OBJECT_CLASS (gtk_scale_button_parent_class)->dispose (object);
|
|
}
|
|
|
|
/**
|
|
* gtk_scale_button_new:
|
|
* @size: (int): a stock icon size
|
|
* @min: the minimum value of the scale (usually 0)
|
|
* @max: the maximum value of the scale (usually 100)
|
|
* @step: the stepping of value when a scroll-wheel event,
|
|
* or up/down arrow event occurs (usually 2)
|
|
* @icons: (allow-none): a %NULL-terminated array of icon names, or %NULL if
|
|
* you want to set the list later with gtk_scale_button_set_icons()
|
|
*
|
|
* Creates a #GtkScaleButton, with a range between @min and @max, with
|
|
* a stepping of @step.
|
|
*
|
|
* Return value: a new #GtkScaleButton
|
|
*
|
|
* Since: 2.12
|
|
*/
|
|
GtkWidget *
|
|
gtk_scale_button_new (GtkIconSize size,
|
|
gdouble min,
|
|
gdouble max,
|
|
gdouble step,
|
|
const gchar **icons)
|
|
{
|
|
GtkScaleButton *button;
|
|
GtkObject *adj;
|
|
|
|
adj = gtk_adjustment_new (min, min, max, step, 10 * step, 0);
|
|
|
|
button = g_object_new (GTK_TYPE_SCALE_BUTTON,
|
|
"adjustment", adj,
|
|
"icons", icons,
|
|
"size", size,
|
|
NULL);
|
|
|
|
return GTK_WIDGET (button);
|
|
}
|
|
|
|
/**
|
|
* gtk_scale_button_get_value:
|
|
* @button: a #GtkScaleButton
|
|
*
|
|
* Gets the current value of the scale button.
|
|
*
|
|
* Return value: current value of the scale button
|
|
*
|
|
* Since: 2.12
|
|
*/
|
|
gdouble
|
|
gtk_scale_button_get_value (GtkScaleButton * button)
|
|
{
|
|
GtkScaleButtonPrivate *priv;
|
|
|
|
g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), 0);
|
|
|
|
priv = button->priv;
|
|
|
|
return gtk_adjustment_get_value (priv->adjustment);
|
|
}
|
|
|
|
/**
|
|
* gtk_scale_button_set_value:
|
|
* @button: a #GtkScaleButton
|
|
* @value: new value of the scale button
|
|
*
|
|
* Sets the current value of the scale; if the value is outside
|
|
* the minimum or maximum range values, it will be clamped to fit
|
|
* inside them. The scale button emits the #GtkScaleButton::value-changed
|
|
* signal if the value changes.
|
|
*
|
|
* Since: 2.12
|
|
*/
|
|
void
|
|
gtk_scale_button_set_value (GtkScaleButton *button,
|
|
gdouble value)
|
|
{
|
|
GtkScaleButtonPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_SCALE_BUTTON (button));
|
|
|
|
priv = button->priv;
|
|
|
|
gtk_range_set_value (GTK_RANGE (priv->scale), value);
|
|
}
|
|
|
|
/**
|
|
* gtk_scale_button_set_icons:
|
|
* @button: a #GtkScaleButton
|
|
* @icons: a %NULL-terminated array of icon names
|
|
*
|
|
* Sets the icons to be used by the scale button.
|
|
* For details, see the #GtkScaleButton:icons property.
|
|
*
|
|
* Since: 2.12
|
|
*/
|
|
void
|
|
gtk_scale_button_set_icons (GtkScaleButton *button,
|
|
const gchar **icons)
|
|
{
|
|
GtkScaleButtonPrivate *priv;
|
|
gchar **tmp;
|
|
|
|
g_return_if_fail (GTK_IS_SCALE_BUTTON (button));
|
|
|
|
priv = button->priv;
|
|
|
|
tmp = priv->icon_list;
|
|
priv->icon_list = g_strdupv ((gchar **) icons);
|
|
g_strfreev (tmp);
|
|
gtk_scale_button_update_icon (button);
|
|
|
|
g_object_notify (G_OBJECT (button), "icons");
|
|
}
|
|
|
|
/**
|
|
* gtk_scale_button_get_adjustment:
|
|
* @button: a #GtkScaleButton
|
|
*
|
|
* Gets the #GtkAdjustment associated with the #GtkScaleButton's scale.
|
|
* See gtk_range_get_adjustment() for details.
|
|
*
|
|
* Returns: the adjustment associated with the scale
|
|
*
|
|
* Since: 2.12
|
|
*/
|
|
GtkAdjustment*
|
|
gtk_scale_button_get_adjustment (GtkScaleButton *button)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), NULL);
|
|
|
|
return button->priv->adjustment;
|
|
}
|
|
|
|
/**
|
|
* gtk_scale_button_set_adjustment:
|
|
* @button: a #GtkScaleButton
|
|
* @adjustment: a #GtkAdjustment
|
|
*
|
|
* Sets the #GtkAdjustment to be used as a model
|
|
* for the #GtkScaleButton's scale.
|
|
* See gtk_range_set_adjustment() for details.
|
|
*
|
|
* Since: 2.12
|
|
*/
|
|
void
|
|
gtk_scale_button_set_adjustment (GtkScaleButton *button,
|
|
GtkAdjustment *adjustment)
|
|
{
|
|
g_return_if_fail (GTK_IS_SCALE_BUTTON (button));
|
|
if (!adjustment)
|
|
adjustment = (GtkAdjustment*) gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
|
|
else
|
|
g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
|
|
|
|
if (button->priv->adjustment != adjustment)
|
|
{
|
|
if (button->priv->adjustment)
|
|
g_object_unref (button->priv->adjustment);
|
|
button->priv->adjustment = g_object_ref_sink (adjustment);
|
|
|
|
if (button->priv->scale)
|
|
gtk_range_set_adjustment (GTK_RANGE (button->priv->scale), adjustment);
|
|
|
|
g_object_notify (G_OBJECT (button), "adjustment");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_scale_button_get_plus_button:
|
|
* @button: a #GtkScaleButton
|
|
*
|
|
* Retrieves the plus button of the #GtkScaleButton.
|
|
*
|
|
* Returns: the plus button of the #GtkScaleButton.
|
|
*
|
|
* Since: 2.14
|
|
*/
|
|
GtkWidget *
|
|
gtk_scale_button_get_plus_button (GtkScaleButton *button)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), NULL);
|
|
|
|
return button->priv->plus_button;
|
|
}
|
|
|
|
/**
|
|
* gtk_scale_button_get_minus_button:
|
|
* @button: a #GtkScaleButton
|
|
*
|
|
* Retrieves the minus button of the #GtkScaleButton.
|
|
*
|
|
* Returns: the minus button of the #GtkScaleButton.
|
|
*
|
|
* Since: 2.14
|
|
*/
|
|
GtkWidget *
|
|
gtk_scale_button_get_minus_button (GtkScaleButton *button)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), NULL);
|
|
|
|
return button->priv->minus_button;
|
|
}
|
|
|
|
/**
|
|
* gtk_scale_button_get_popup:
|
|
* @button: a #GtkScaleButton
|
|
*
|
|
* Retrieves the popup of the #GtkScaleButton.
|
|
*
|
|
* Returns: the popup of the #GtkScaleButton
|
|
*
|
|
* Since: 2.14
|
|
*/
|
|
GtkWidget *
|
|
gtk_scale_button_get_popup (GtkScaleButton *button)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), NULL);
|
|
|
|
return button->priv->dock;
|
|
}
|
|
|
|
static void
|
|
gtk_scale_button_set_orientation_private (GtkScaleButton *button,
|
|
GtkOrientation orientation)
|
|
{
|
|
GtkScaleButtonPrivate *priv = button->priv;
|
|
|
|
if (orientation != priv->orientation)
|
|
{
|
|
priv->orientation = orientation;
|
|
|
|
gtk_orientable_set_orientation (GTK_ORIENTABLE (priv->box),
|
|
orientation);
|
|
gtk_container_child_set (GTK_CONTAINER (priv->box),
|
|
priv->plus_button,
|
|
"pack-type",
|
|
orientation == GTK_ORIENTATION_VERTICAL ?
|
|
GTK_PACK_START : GTK_PACK_END,
|
|
NULL);
|
|
gtk_container_child_set (GTK_CONTAINER (priv->box),
|
|
priv->minus_button,
|
|
"pack-type",
|
|
orientation == GTK_ORIENTATION_VERTICAL ?
|
|
GTK_PACK_END : GTK_PACK_START,
|
|
NULL);
|
|
|
|
gtk_orientable_set_orientation (GTK_ORIENTABLE (priv->scale),
|
|
orientation);
|
|
|
|
if (orientation == GTK_ORIENTATION_VERTICAL)
|
|
{
|
|
gtk_widget_set_size_request (GTK_WIDGET (priv->scale),
|
|
-1, SCALE_SIZE);
|
|
gtk_range_set_inverted (GTK_RANGE (priv->scale), TRUE);
|
|
}
|
|
else
|
|
{
|
|
gtk_widget_set_size_request (GTK_WIDGET (priv->scale),
|
|
SCALE_SIZE, -1);
|
|
gtk_range_set_inverted (GTK_RANGE (priv->scale), FALSE);
|
|
}
|
|
|
|
/* FIXME: without this, the popup window appears as a square
|
|
* after changing the orientation
|
|
*/
|
|
gtk_window_resize (GTK_WINDOW (priv->dock), 1, 1);
|
|
|
|
g_object_notify (G_OBJECT (button), "orientation");
|
|
}
|
|
}
|
|
|
|
/*
|
|
* button callbacks.
|
|
*/
|
|
|
|
static gboolean
|
|
gtk_scale_button_scroll (GtkWidget *widget,
|
|
GdkEventScroll *event)
|
|
{
|
|
GtkScaleButton *button;
|
|
GtkScaleButtonPrivate *priv;
|
|
GtkAdjustment *adj;
|
|
gdouble d;
|
|
|
|
button = GTK_SCALE_BUTTON (widget);
|
|
priv = button->priv;
|
|
adj = priv->adjustment;
|
|
|
|
if (event->type != GDK_SCROLL)
|
|
return FALSE;
|
|
|
|
d = gtk_scale_button_get_value (button);
|
|
if (event->direction == GDK_SCROLL_UP)
|
|
{
|
|
d += adj->step_increment;
|
|
if (d > adj->upper)
|
|
d = adj->upper;
|
|
}
|
|
else
|
|
{
|
|
d -= adj->step_increment;
|
|
if (d < adj->lower)
|
|
d = adj->lower;
|
|
}
|
|
gtk_scale_button_set_value (button, d);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gtk_scale_button_screen_changed (GtkWidget *widget,
|
|
GdkScreen *previous_screen)
|
|
{
|
|
GtkScaleButton *button = (GtkScaleButton *) widget;
|
|
GtkScaleButtonPrivate *priv;
|
|
GdkScreen *screen;
|
|
GValue value = { 0, };
|
|
|
|
if (gtk_widget_has_screen (widget) == FALSE)
|
|
return;
|
|
|
|
priv = button->priv;
|
|
|
|
screen = gtk_widget_get_screen (widget);
|
|
g_value_init (&value, G_TYPE_INT);
|
|
if (gdk_screen_get_setting (screen,
|
|
"gtk-double-click-time",
|
|
&value) == FALSE)
|
|
{
|
|
priv->click_timeout = CLICK_TIMEOUT;
|
|
return;
|
|
}
|
|
|
|
priv->click_timeout = g_value_get_int (&value);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_scale_popup (GtkWidget *widget,
|
|
GdkEvent *event,
|
|
guint32 time)
|
|
{
|
|
GtkScaleButton *button;
|
|
GtkScaleButtonPrivate *priv;
|
|
GtkAdjustment *adj;
|
|
gint x, y, m, dx, dy, sx, sy, startoff;
|
|
gdouble v;
|
|
GdkDisplay *display;
|
|
GdkScreen *screen;
|
|
gboolean is_moved;
|
|
GdkDevice *device, *keyboard, *pointer;
|
|
|
|
is_moved = FALSE;
|
|
button = GTK_SCALE_BUTTON (widget);
|
|
priv = button->priv;
|
|
adj = priv->adjustment;
|
|
|
|
display = gtk_widget_get_display (widget);
|
|
screen = gtk_widget_get_screen (widget);
|
|
|
|
/* position roughly */
|
|
gtk_window_set_screen (GTK_WINDOW (priv->dock), screen);
|
|
|
|
gdk_window_get_origin (widget->window, &x, &y);
|
|
x += widget->allocation.x;
|
|
y += widget->allocation.y;
|
|
|
|
if (priv->orientation == GTK_ORIENTATION_VERTICAL)
|
|
gtk_window_move (GTK_WINDOW (priv->dock), x, y - (SCALE_SIZE / 2));
|
|
else
|
|
gtk_window_move (GTK_WINDOW (priv->dock), x - (SCALE_SIZE / 2), y);
|
|
|
|
gtk_widget_show_all (priv->dock);
|
|
|
|
gdk_window_get_origin (priv->dock->window, &dx, &dy);
|
|
dx += priv->dock->allocation.x;
|
|
dy += priv->dock->allocation.y;
|
|
|
|
gdk_window_get_origin (priv->scale->window, &sx, &sy);
|
|
sx += priv->scale->allocation.x;
|
|
sy += priv->scale->allocation.y;
|
|
|
|
priv->timeout = TRUE;
|
|
|
|
/* position (needs widget to be shown already) */
|
|
v = gtk_scale_button_get_value (button) / (adj->upper - adj->lower);
|
|
|
|
if (priv->orientation == GTK_ORIENTATION_VERTICAL)
|
|
{
|
|
startoff = sy - dy;
|
|
|
|
x += (widget->allocation.width - priv->dock->allocation.width) / 2;
|
|
y -= startoff;
|
|
y -= GTK_RANGE (priv->scale)->min_slider_size / 2;
|
|
m = priv->scale->allocation.height -
|
|
GTK_RANGE (priv->scale)->min_slider_size;
|
|
y -= m * (1.0 - v);
|
|
}
|
|
else
|
|
{
|
|
startoff = sx - dx;
|
|
|
|
x -= startoff;
|
|
y += (widget->allocation.height - priv->dock->allocation.height) / 2;
|
|
x -= GTK_RANGE (priv->scale)->min_slider_size / 2;
|
|
m = priv->scale->allocation.width -
|
|
GTK_RANGE (priv->scale)->min_slider_size;
|
|
x -= m * v;
|
|
}
|
|
|
|
/* Make sure the dock stays inside the monitor */
|
|
if (event->type == GDK_BUTTON_PRESS)
|
|
{
|
|
int monitor;
|
|
GdkEventButton *button_event = (GdkEventButton *) event;
|
|
GdkRectangle rect;
|
|
GtkWidget *d;
|
|
|
|
d = GTK_WIDGET (priv->dock);
|
|
monitor = gdk_screen_get_monitor_at_point (screen,
|
|
button_event->x_root,
|
|
button_event->y_root);
|
|
gdk_screen_get_monitor_geometry (screen, monitor, &rect);
|
|
|
|
if (priv->orientation == GTK_ORIENTATION_VERTICAL)
|
|
y += button_event->y;
|
|
else
|
|
x += button_event->x;
|
|
|
|
/* Move the dock, but set is_moved so we
|
|
* don't forward the first click later on,
|
|
* as it could make the scale go to the bottom */
|
|
if (y < rect.y)
|
|
{
|
|
y = rect.y;
|
|
is_moved = TRUE;
|
|
}
|
|
else if (y + d->allocation.height > rect.height + rect.y)
|
|
{
|
|
y = rect.y + rect.height - d->allocation.height;
|
|
is_moved = TRUE;
|
|
}
|
|
|
|
if (x < rect.x)
|
|
{
|
|
x = rect.x;
|
|
is_moved = TRUE;
|
|
}
|
|
else if (x + d->allocation.width > rect.width + rect.x)
|
|
{
|
|
x = rect.x + rect.width - d->allocation.width;
|
|
is_moved = TRUE;
|
|
}
|
|
}
|
|
|
|
gtk_window_move (GTK_WINDOW (priv->dock), x, y);
|
|
|
|
if (event->type == GDK_BUTTON_PRESS)
|
|
GTK_WIDGET_CLASS (gtk_scale_button_parent_class)->button_press_event (widget, (GdkEventButton *) event);
|
|
|
|
device = gdk_event_get_device (event);
|
|
|
|
if (device->source == GDK_SOURCE_KEYBOARD)
|
|
{
|
|
keyboard = device;
|
|
pointer = gdk_device_get_associated_device (device);
|
|
}
|
|
else
|
|
{
|
|
pointer = device;
|
|
keyboard = gdk_device_get_associated_device (device);
|
|
}
|
|
|
|
/* grab focus */
|
|
gtk_device_grab_add (priv->dock, pointer, TRUE);
|
|
|
|
if (gdk_device_grab (pointer, priv->dock->window,
|
|
GDK_OWNERSHIP_WINDOW, TRUE,
|
|
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
|
|
GDK_POINTER_MOTION_MASK, NULL, time) != GDK_GRAB_SUCCESS)
|
|
{
|
|
gtk_device_grab_remove (priv->dock, pointer);
|
|
gtk_widget_hide (priv->dock);
|
|
return FALSE;
|
|
}
|
|
|
|
if (gdk_device_grab (keyboard, priv->dock->window,
|
|
GDK_OWNERSHIP_WINDOW, TRUE,
|
|
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
|
|
NULL, time) != GDK_GRAB_SUCCESS)
|
|
{
|
|
gdk_device_ungrab (pointer, time);
|
|
gtk_device_grab_remove (priv->dock, pointer);
|
|
gtk_widget_hide (priv->dock);
|
|
return FALSE;
|
|
}
|
|
|
|
gtk_widget_grab_focus (priv->dock);
|
|
priv->grab_keyboard = keyboard;
|
|
priv->grab_pointer = pointer;
|
|
|
|
if (event->type == GDK_BUTTON_PRESS && !is_moved)
|
|
{
|
|
GdkEventButton *e;
|
|
GdkEventButton *button_event = (GdkEventButton *) event;
|
|
|
|
/* forward event to the slider */
|
|
e = (GdkEventButton *) gdk_event_copy ((GdkEvent *) event);
|
|
e->window = priv->scale->window;
|
|
|
|
/* position: the X position isn't relevant, halfway will work just fine.
|
|
* The vertical position should be *exactly* in the middle of the slider
|
|
* of the scale; if we don't do that correctly, it'll move from its current
|
|
* position, which means a position change on-click, which is bad.
|
|
*/
|
|
if (priv->orientation == GTK_ORIENTATION_VERTICAL)
|
|
{
|
|
e->x = priv->scale->allocation.width / 2;
|
|
m = priv->scale->allocation.height -
|
|
GTK_RANGE (priv->scale)->min_slider_size;
|
|
e->y = ((1.0 - v) * m) + GTK_RANGE (priv->scale)->min_slider_size / 2;
|
|
}
|
|
else
|
|
{
|
|
e->y = priv->scale->allocation.height / 2;
|
|
m = priv->scale->allocation.width -
|
|
GTK_RANGE (priv->scale)->min_slider_size;
|
|
e->x = (v * m) + GTK_RANGE (priv->scale)->min_slider_size / 2;
|
|
}
|
|
|
|
gtk_widget_event (priv->scale, (GdkEvent *) e);
|
|
e->window = button_event->window;
|
|
gdk_event_free ((GdkEvent *) e);
|
|
}
|
|
|
|
gtk_widget_grab_focus (priv->scale);
|
|
|
|
priv->pop_time = time;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_scale_button_press (GtkWidget *widget,
|
|
GdkEventButton *event)
|
|
{
|
|
return gtk_scale_popup (widget, (GdkEvent *) event, event->time);
|
|
}
|
|
|
|
static void
|
|
gtk_scale_button_popup (GtkWidget *widget)
|
|
{
|
|
GdkEvent *ev;
|
|
|
|
/* This is a callback for a keybinding signal,
|
|
* current event should be the key event that
|
|
* triggered it.
|
|
*/
|
|
ev = gtk_get_current_event ();
|
|
|
|
if (ev->type != GDK_KEY_PRESS &&
|
|
ev->type != GDK_KEY_RELEASE)
|
|
{
|
|
gdk_event_free (ev);
|
|
ev = gdk_event_new (GDK_KEY_RELEASE);
|
|
ev->key.time = GDK_CURRENT_TIME;
|
|
}
|
|
|
|
gtk_scale_popup (widget, ev, ev->key.time);
|
|
gdk_event_free (ev);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_scale_button_key_release (GtkWidget *widget,
|
|
GdkEventKey *event)
|
|
{
|
|
return gtk_bindings_activate_event (GTK_OBJECT (widget), event);
|
|
}
|
|
|
|
/* This is called when the grab is broken for
|
|
* either the dock, or the scale itself */
|
|
static void
|
|
gtk_scale_button_grab_notify (GtkScaleButton *button,
|
|
gboolean was_grabbed)
|
|
{
|
|
GdkDisplay *display;
|
|
GtkScaleButtonPrivate *priv;
|
|
GtkWidget *toplevel, *grab_widget;
|
|
GtkWindowGroup *group;
|
|
|
|
priv = button->priv;
|
|
|
|
if (!priv->grab_pointer ||
|
|
!gtk_widget_device_is_shadowed (GTK_WIDGET (button), priv->grab_pointer))
|
|
return;
|
|
|
|
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (button));
|
|
|
|
if (GTK_IS_WINDOW (toplevel))
|
|
group = gtk_window_get_group (GTK_WINDOW (toplevel));
|
|
else
|
|
group = gtk_window_get_group (NULL);
|
|
|
|
grab_widget = gtk_window_group_get_current_device_grab (group, priv->grab_pointer);
|
|
|
|
if (grab_widget &&
|
|
gtk_widget_is_ancestor (grab_widget, priv->dock))
|
|
return;
|
|
|
|
display = gtk_widget_get_display (priv->dock);
|
|
gdk_device_ungrab (priv->grab_keyboard, GDK_CURRENT_TIME);
|
|
gdk_device_ungrab (priv->grab_pointer, GDK_CURRENT_TIME);
|
|
gtk_device_grab_remove (priv->dock, priv->grab_pointer);
|
|
|
|
priv->grab_keyboard = NULL;
|
|
priv->grab_pointer = NULL;
|
|
|
|
/* hide again */
|
|
gtk_widget_hide (priv->dock);
|
|
priv->timeout = FALSE;
|
|
}
|
|
|
|
/*
|
|
* +/- button callbacks.
|
|
*/
|
|
|
|
static gboolean
|
|
cb_button_timeout (gpointer user_data)
|
|
{
|
|
GtkScaleButton *button;
|
|
GtkScaleButtonPrivate *priv;
|
|
GtkAdjustment *adj;
|
|
gdouble val;
|
|
gboolean res = TRUE;
|
|
|
|
button = GTK_SCALE_BUTTON (user_data);
|
|
priv = button->priv;
|
|
|
|
if (priv->click_id == 0)
|
|
return FALSE;
|
|
|
|
adj = priv->adjustment;
|
|
|
|
val = gtk_scale_button_get_value (button);
|
|
val += priv->direction;
|
|
if (val <= adj->lower)
|
|
{
|
|
res = FALSE;
|
|
val = adj->lower;
|
|
}
|
|
else if (val > adj->upper)
|
|
{
|
|
res = FALSE;
|
|
val = adj->upper;
|
|
}
|
|
gtk_scale_button_set_value (button, val);
|
|
|
|
if (!res)
|
|
{
|
|
g_source_remove (priv->click_id);
|
|
priv->click_id = 0;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
cb_button_press (GtkWidget *widget,
|
|
GdkEventButton *event,
|
|
gpointer user_data)
|
|
{
|
|
GtkScaleButton *button;
|
|
GtkScaleButtonPrivate *priv;
|
|
GtkAdjustment *adj;
|
|
|
|
button = GTK_SCALE_BUTTON (user_data);
|
|
priv = button->priv;
|
|
adj = priv->adjustment;
|
|
|
|
if (priv->click_id != 0)
|
|
g_source_remove (priv->click_id);
|
|
|
|
if (widget == priv->plus_button)
|
|
priv->direction = fabs (adj->page_increment);
|
|
else
|
|
priv->direction = - fabs (adj->page_increment);
|
|
|
|
priv->click_id = gdk_threads_add_timeout (priv->click_timeout,
|
|
cb_button_timeout,
|
|
button);
|
|
cb_button_timeout (button);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
cb_button_release (GtkWidget *widget,
|
|
GdkEventButton *event,
|
|
gpointer user_data)
|
|
{
|
|
GtkScaleButton *button;
|
|
GtkScaleButtonPrivate *priv;
|
|
|
|
button = GTK_SCALE_BUTTON (user_data);
|
|
priv = button->priv;
|
|
|
|
if (priv->click_id != 0)
|
|
{
|
|
g_source_remove (priv->click_id);
|
|
priv->click_id = 0;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
cb_dock_grab_notify (GtkWidget *widget,
|
|
gboolean was_grabbed,
|
|
gpointer user_data)
|
|
{
|
|
GtkScaleButton *button = (GtkScaleButton *) user_data;
|
|
|
|
gtk_scale_button_grab_notify (button, was_grabbed);
|
|
}
|
|
|
|
static gboolean
|
|
cb_dock_grab_broken_event (GtkWidget *widget,
|
|
gboolean was_grabbed,
|
|
gpointer user_data)
|
|
{
|
|
GtkScaleButton *button = (GtkScaleButton *) user_data;
|
|
|
|
gtk_scale_button_grab_notify (button, FALSE);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* Scale callbacks.
|
|
*/
|
|
|
|
static void
|
|
gtk_scale_button_release_grab (GtkScaleButton *button,
|
|
GdkEventButton *event)
|
|
{
|
|
GdkEventButton *e;
|
|
GdkDisplay *display;
|
|
GtkScaleButtonPrivate *priv;
|
|
|
|
priv = button->priv;
|
|
|
|
/* ungrab focus */
|
|
display = gtk_widget_get_display (GTK_WIDGET (button));
|
|
gdk_device_ungrab (priv->grab_keyboard, event->time);
|
|
gdk_device_ungrab (priv->grab_pointer, event->time);
|
|
gtk_device_grab_remove (priv->dock, priv->grab_pointer);
|
|
|
|
priv->grab_keyboard = NULL;
|
|
priv->grab_pointer = NULL;
|
|
|
|
/* hide again */
|
|
gtk_widget_hide (priv->dock);
|
|
priv->timeout = FALSE;
|
|
|
|
e = (GdkEventButton *) gdk_event_copy ((GdkEvent *) event);
|
|
e->window = GTK_WIDGET (button)->window;
|
|
e->type = GDK_BUTTON_RELEASE;
|
|
gtk_widget_event (GTK_WIDGET (button), (GdkEvent *) e);
|
|
e->window = event->window;
|
|
gdk_event_free ((GdkEvent *) e);
|
|
}
|
|
|
|
static gboolean
|
|
cb_dock_button_press (GtkWidget *widget,
|
|
GdkEventButton *event,
|
|
gpointer user_data)
|
|
{
|
|
GtkScaleButton *button = GTK_SCALE_BUTTON (user_data);
|
|
|
|
if (event->type == GDK_BUTTON_PRESS)
|
|
{
|
|
gtk_scale_button_release_grab (button, event);
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_scale_button_popdown (GtkWidget *widget)
|
|
{
|
|
GtkScaleButton *button;
|
|
GtkScaleButtonPrivate *priv;
|
|
GdkDisplay *display;
|
|
|
|
button = GTK_SCALE_BUTTON (widget);
|
|
priv = button->priv;
|
|
|
|
/* ungrab focus */
|
|
display = gtk_widget_get_display (widget);
|
|
gdk_device_ungrab (priv->grab_keyboard, GDK_CURRENT_TIME);
|
|
gdk_device_ungrab (priv->grab_pointer, GDK_CURRENT_TIME);
|
|
gtk_device_grab_remove (priv->dock, priv->grab_pointer);
|
|
|
|
priv->grab_keyboard = NULL;
|
|
priv->grab_pointer = NULL;
|
|
|
|
/* hide again */
|
|
gtk_widget_hide (priv->dock);
|
|
priv->timeout = FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
cb_dock_key_release (GtkWidget *widget,
|
|
GdkEventKey *event,
|
|
gpointer user_data)
|
|
{
|
|
if (event->keyval == GDK_Escape)
|
|
{
|
|
gtk_scale_button_popdown (GTK_WIDGET (user_data));
|
|
return TRUE;
|
|
}
|
|
|
|
if (!gtk_bindings_activate_event (GTK_OBJECT (widget), event))
|
|
{
|
|
/* The popup hasn't managed the event, pass onto the button */
|
|
gtk_bindings_activate_event (GTK_OBJECT (user_data), event);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
cb_scale_grab_notify (GtkWidget *widget,
|
|
gboolean was_grabbed,
|
|
gpointer user_data)
|
|
{
|
|
GtkScaleButton *button = (GtkScaleButton *) user_data;
|
|
|
|
gtk_scale_button_grab_notify (button, was_grabbed);
|
|
}
|
|
|
|
/*
|
|
* Scale stuff.
|
|
*/
|
|
|
|
#define GTK_TYPE_SCALE_BUTTON_SCALE (_gtk_scale_button_scale_get_type ())
|
|
#define GTK_SCALE_BUTTON_SCALE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_SCALE_BUTTON_SCALE, GtkScaleButtonScale))
|
|
#define GTK_IS_SCALE_BUTTON_SCALE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_SCALE_BUTTON_SCALE))
|
|
|
|
typedef struct _GtkScaleButtonScale
|
|
{
|
|
GtkScale parent_instance;
|
|
GtkScaleButton *button;
|
|
} GtkScaleButtonScale;
|
|
|
|
typedef struct _GtkScaleButtonScaleClass
|
|
{
|
|
GtkScaleClass parent_class;
|
|
} GtkScaleButtonScaleClass;
|
|
|
|
static gboolean gtk_scale_button_scale_press (GtkWidget *widget,
|
|
GdkEventButton *event);
|
|
static gboolean gtk_scale_button_scale_release (GtkWidget *widget,
|
|
GdkEventButton *event);
|
|
|
|
G_DEFINE_TYPE (GtkScaleButtonScale, _gtk_scale_button_scale, GTK_TYPE_SCALE)
|
|
|
|
static void
|
|
_gtk_scale_button_scale_class_init (GtkScaleButtonScaleClass *klass)
|
|
{
|
|
GtkWidgetClass *gtkwidget_class = GTK_WIDGET_CLASS (klass);
|
|
GtkRangeClass *gtkrange_class = GTK_RANGE_CLASS (klass);
|
|
|
|
gtkwidget_class->button_press_event = gtk_scale_button_scale_press;
|
|
gtkwidget_class->button_release_event = gtk_scale_button_scale_release;
|
|
gtkrange_class->value_changed = gtk_scale_button_scale_value_changed;
|
|
}
|
|
|
|
static void
|
|
_gtk_scale_button_scale_init (GtkScaleButtonScale *scale)
|
|
{
|
|
}
|
|
|
|
static GtkWidget *
|
|
gtk_scale_button_scale_new (GtkScaleButton *button)
|
|
{
|
|
GtkScaleButtonPrivate *priv = button->priv;
|
|
GtkScaleButtonScale *scale;
|
|
|
|
scale = g_object_new (GTK_TYPE_SCALE_BUTTON_SCALE,
|
|
"orientation", priv->orientation,
|
|
"adjustment", priv->adjustment,
|
|
"draw-value", FALSE,
|
|
NULL);
|
|
|
|
scale->button = button;
|
|
|
|
g_signal_connect (scale, "grab-notify",
|
|
G_CALLBACK (cb_scale_grab_notify), button);
|
|
|
|
if (priv->orientation == GTK_ORIENTATION_VERTICAL)
|
|
{
|
|
gtk_widget_set_size_request (GTK_WIDGET (scale), -1, SCALE_SIZE);
|
|
gtk_range_set_inverted (GTK_RANGE (scale), TRUE);
|
|
}
|
|
else
|
|
{
|
|
gtk_widget_set_size_request (GTK_WIDGET (scale), SCALE_SIZE, -1);
|
|
gtk_range_set_inverted (GTK_RANGE (scale), FALSE);
|
|
}
|
|
|
|
return GTK_WIDGET (scale);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_scale_button_scale_press (GtkWidget *widget,
|
|
GdkEventButton *event)
|
|
{
|
|
GtkScaleButtonPrivate *priv = GTK_SCALE_BUTTON_SCALE (widget)->button->priv;
|
|
|
|
/* the scale will grab input; if we have input grabbed, all goes
|
|
* horribly wrong, so let's not do that.
|
|
*/
|
|
gtk_device_grab_remove (priv->dock, event->device);
|
|
|
|
return GTK_WIDGET_CLASS (_gtk_scale_button_scale_parent_class)->button_press_event (widget, event);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_scale_button_scale_release (GtkWidget *widget,
|
|
GdkEventButton *event)
|
|
{
|
|
GtkScaleButton *button = GTK_SCALE_BUTTON_SCALE (widget)->button;
|
|
gboolean res;
|
|
|
|
if (button->priv->timeout)
|
|
{
|
|
/* if we did a quick click, leave the window open; else, hide it */
|
|
if (event->time > button->priv->pop_time + button->priv->click_timeout)
|
|
{
|
|
|
|
gtk_scale_button_release_grab (button, event);
|
|
GTK_WIDGET_CLASS (_gtk_scale_button_scale_parent_class)->button_release_event (widget, event);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
button->priv->timeout = FALSE;
|
|
}
|
|
|
|
res = GTK_WIDGET_CLASS (_gtk_scale_button_scale_parent_class)->button_release_event (widget, event);
|
|
|
|
/* the scale will release input; right after that, we *have to* grab
|
|
* it back so we can catch out-of-scale clicks and hide the popup,
|
|
* so I basically want a g_signal_connect_after_always(), but I can't
|
|
* find that, so we do this complex 'first-call-parent-then-do-actual-
|
|
* action' thingy...
|
|
*/
|
|
gtk_device_grab_add (button->priv->dock, event->device, TRUE);
|
|
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
gtk_scale_button_update_icon (GtkScaleButton *button)
|
|
{
|
|
GtkScaleButtonPrivate *priv;
|
|
GtkRange *range;
|
|
GtkAdjustment *adj;
|
|
gdouble value;
|
|
const gchar *name;
|
|
guint num_icons;
|
|
|
|
priv = button->priv;
|
|
|
|
if (!priv->icon_list || priv->icon_list[0] == '\0')
|
|
{
|
|
gtk_image_set_from_stock (GTK_IMAGE (priv->image),
|
|
GTK_STOCK_MISSING_IMAGE,
|
|
priv->size);
|
|
return;
|
|
}
|
|
|
|
num_icons = g_strv_length (priv->icon_list);
|
|
|
|
/* The 1-icon special case */
|
|
if (num_icons == 1)
|
|
{
|
|
gtk_image_set_from_icon_name (GTK_IMAGE (priv->image),
|
|
priv->icon_list[0],
|
|
priv->size);
|
|
return;
|
|
}
|
|
|
|
range = GTK_RANGE (priv->scale);
|
|
adj = priv->adjustment;
|
|
value = gtk_scale_button_get_value (button);
|
|
|
|
/* The 2-icons special case */
|
|
if (num_icons == 2)
|
|
{
|
|
gdouble limit;
|
|
limit = (adj->upper - adj->lower) / 2 + adj->lower;
|
|
if (value < limit)
|
|
name = priv->icon_list[0];
|
|
else
|
|
name = priv->icon_list[1];
|
|
|
|
gtk_image_set_from_icon_name (GTK_IMAGE (priv->image),
|
|
name,
|
|
priv->size);
|
|
return;
|
|
}
|
|
|
|
/* With 3 or more icons */
|
|
if (value == adj->lower)
|
|
{
|
|
name = priv->icon_list[0];
|
|
}
|
|
else if (value == adj->upper)
|
|
{
|
|
name = priv->icon_list[1];
|
|
}
|
|
else
|
|
{
|
|
gdouble step;
|
|
guint i;
|
|
|
|
step = (adj->upper - adj->lower) / (num_icons - 2);
|
|
i = (guint) ((value - adj->lower) / step) + 2;
|
|
g_assert (i < num_icons);
|
|
name = priv->icon_list[i];
|
|
}
|
|
|
|
gtk_image_set_from_icon_name (GTK_IMAGE (priv->image),
|
|
name,
|
|
priv->size);
|
|
}
|
|
|
|
static void
|
|
gtk_scale_button_scale_value_changed (GtkRange *range)
|
|
{
|
|
GtkScaleButton *button = GTK_SCALE_BUTTON_SCALE (range)->button;
|
|
gdouble value;
|
|
|
|
value = gtk_range_get_value (range);
|
|
|
|
gtk_scale_button_update_icon (button);
|
|
|
|
g_signal_emit (button, signals[VALUE_CHANGED], 0, value);
|
|
g_object_notify (G_OBJECT (button), "value");
|
|
}
|