--- /dev/null
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2005 Ronald S. Bultje
+ * Copyright (C) 2006, 2007 Christian Persch
+ * Copyright (C) 2006 Jan Arne Petersen
+ * Copyright (C) 2005-2007 Red Hat, Inc.
+ *
+ * Authors:
+ * - Ronald S. Bultje <rbultje@ronald.bitfreak.net>
+ * - Bastien Nocera <bnocera@redhat.com>
+ * - Jan Arne Petersen <jpetersen@jpetersen.org>
+ * - Christian Persch <chpe@svn.gnome.org>
+ *
+ * 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 2 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
+ * Lesser 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, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 2007. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#include <config.h>
+
+#define _GNU_SOURCE
+#include <math.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gtkmain.h"
+#include "gtkintl.h"
+#include "gtkrange.h"
+#include "gtkbindings.h"
+#include "gtkscale.h"
+#include "gtkvscale.h"
+#include "gtkframe.h"
+#include "gtkvbox.h"
+#include "gtkwindow.h"
+#include "gtkmarshalers.h"
+#include "gtkstock.h"
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gdk/gdkkeysyms.h>
+#include "gtkscalebutton.h"
+
+#define SCALE_SIZE 100
+#define CLICK_TIMEOUT 250
+
+enum {
+ VALUE_CHANGED,
+ POPUP,
+ POPDOWN,
+ LAST_SIGNAL
+};
+
+enum {
+ PROP_0,
+ PROP_VALUE,
+ PROP_SIZE,
+ PROP_ADJUSTMENT
+};
+
+struct _GtkScaleButtonPrivate {
+ GtkWidget *dock, *scale, *image;
+ GtkIconSize size;
+ guint click_id;
+ gdouble direction;
+ guint32 pop_time;
+ gchar **icon_list;
+ gint click_timeout;
+ guint timeout : 1;
+} _GtkScaleButtonPrivate;
+
+static void gtk_scale_button_class_init (GtkScaleButtonClass *klass);
+static void gtk_scale_button_init (GtkScaleButton *button);
+static void gtk_scale_button_dispose (GObject *object);
+static void gtk_scale_button_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_scale_button_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+static gboolean gtk_scale_button_scroll (GtkWidget *widget,
+ GdkEventScroll *event);
+static void gtk_scale_button_screen_changed (GtkWidget *widget,
+ GdkScreen *previous_screen);
+static gboolean gtk_scale_button_press (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean gtk_scale_button_key_release (GtkWidget *widget,
+ GdkEventKey *event);
+static void gtk_scale_button_popup_from_bindings (GtkWidget *widget);
+static void gtk_scale_button_popdown_from_bindings (GtkWidget *widget);
+static gboolean cb_dock_button_press (GtkWidget *widget,
+ GdkEventButton *event,
+ gpointer user_data);
+static gboolean cb_dock_key_release (GtkWidget *widget,
+ GdkEventKey *event,
+ gpointer user_data);
+static gboolean cb_button_press (GtkWidget *widget,
+ GdkEventButton *event,
+ gpointer user_data);
+static gboolean cb_button_release (GtkWidget *widget,
+ GdkEventButton *event,
+ gpointer user_data);
+static void cb_dock_grab_notify (GtkWidget *widget,
+ gboolean was_grabbed,
+ gpointer user_data);
+static gboolean cb_dock_grab_broken_event (GtkWidget *widget,
+ gboolean was_grabbed,
+ gpointer user_data);
+static void cb_scale_grab_notify (GtkWidget *widget,
+ gboolean was_grabbed,
+ gpointer user_data);
+static void gtk_scale_button_update_icon (GtkScaleButton *button);
+static void gtk_scale_button_scale_value_changed(GtkRange *range);
+
+/* see below for scale definitions */
+static GtkWidget *gtk_scale_button_scale_new (GtkScaleButton *button,
+ gdouble min,
+ gdouble max,
+ gdouble step);
+
+static GtkButtonClass *parent_class = NULL;
+static guint signals[LAST_SIGNAL] = { 0 };
+
+G_DEFINE_TYPE (GtkScaleButton, gtk_scale_button, GTK_TYPE_BUTTON)
+
+static void
+gtk_scale_button_class_init (GtkScaleButtonClass *klass)
+{
+ GtkBindingSet *binding_set;
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+ parent_class = g_type_class_peek_parent (klass);
+
+ gobject_class->dispose = gtk_scale_button_dispose;
+ gobject_class->set_property = gtk_scale_button_set_property;
+ gobject_class->get_property = gtk_scale_button_get_property;
+ widget_class->button_press_event = gtk_scale_button_press;
+ widget_class->key_release_event = gtk_scale_button_key_release;
+ widget_class->scroll_event = gtk_scale_button_scroll;
+ widget_class->screen_changed = gtk_scale_button_screen_changed;
+
+ g_object_class_install_property (gobject_class,
+ PROP_VALUE,
+ g_param_spec_double ("value",
+ P_("Value"),
+ P_("The value of the scale"),
+ -G_MAXDOUBLE,
+ G_MAXDOUBLE,
+ 0,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_SIZE,
+ g_param_spec_enum ("size",
+ P_("Icon size"),
+ P_("The icon size"),
+ GTK_TYPE_ICON_SIZE,
+ GTK_ICON_SIZE_SMALL_TOOLBAR,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_ADJUSTMENT,
+ g_param_spec_object ("adjustment",
+ P_("Adjustment"),
+ P_("The GtkAdjustment that contains the current value of this scale button object"),
+ GTK_TYPE_ADJUSTMENT,
+ G_PARAM_READWRITE));
+
+ /**
+ * GtkScaleButton::value-changed:
+ * @button: the object that received the signal
+ *
+ * Emitted when the value field has changed.
+ *
+ * Since: 2.12
+ *
+ */
+ signals[VALUE_CHANGED] =
+ g_signal_new (I_("value-changed"),
+ G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GtkScaleButtonClass, value_changed),
+ NULL, NULL,
+ _gtk_marshal_VOID__DOUBLE,
+ G_TYPE_NONE, 1, G_TYPE_DOUBLE);
+ signals[POPUP] =
+ _gtk_binding_signal_new (I_("popup"),
+ G_OBJECT_CLASS_TYPE (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_CALLBACK (gtk_scale_button_popup_from_bindings),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+ signals[POPDOWN] =
+ _gtk_binding_signal_new (I_("popdown"),
+ G_OBJECT_CLASS_TYPE (klass),
+ G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+ G_CALLBACK (gtk_scale_button_popdown_from_bindings),
+ NULL, NULL,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+ /* Key bindings */
+ binding_set = gtk_binding_set_by_class (widget_class);
+
+ gtk_binding_entry_add_signal (binding_set, GDK_space, 0,
+ "popup", 0);
+ gtk_binding_entry_add_signal (binding_set, GDK_Return, 0,
+ "popup", 0);
+ gtk_binding_entry_add_signal (binding_set, GDK_ISO_Enter, 0,
+ "popup", 0);
+ gtk_binding_entry_add_signal (binding_set, GDK_KP_Enter, 0,
+ "popup", 0);
+ gtk_binding_entry_add_signal (binding_set, GDK_Escape, 0,
+ "popdown", 0);
+}
+
+static void
+gtk_scale_button_init (GtkScaleButton *button)
+{
+ GtkWidget *frame, *box;
+ GtkScaleButtonPrivate *priv;
+
+ button->priv = g_new0 (GtkScaleButtonPrivate, 1);
+ priv = button->priv;
+
+ priv->timeout = FALSE;
+ priv->click_id = 0;
+ priv->click_timeout = CLICK_TIMEOUT;
+
+ gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
+ gtk_button_set_focus_on_click (GTK_BUTTON (button), FALSE);
+
+ /* image */
+ priv->image = gtk_image_new ();
+ gtk_container_add (GTK_CONTAINER (button), priv->image);
+ gtk_widget_show_all (priv->image);
+
+ /* window */
+ priv->dock = gtk_window_new (GTK_WINDOW_POPUP);
+ g_signal_connect (priv->dock, "button-press-event",
+ G_CALLBACK (cb_dock_button_press), button);
+ g_signal_connect (priv->dock, "key-release-event",
+ G_CALLBACK (cb_dock_key_release), button);
+ g_signal_connect (priv->dock, "grab-notify",
+ G_CALLBACK (cb_dock_grab_notify), button);
+ g_signal_connect (priv->dock, "grab-broken-event",
+ G_CALLBACK (cb_dock_grab_broken_event), button);
+ gtk_window_set_decorated (GTK_WINDOW (priv->dock), FALSE);
+
+ /* frame */
+ frame = gtk_frame_new (NULL);
+ gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
+ gtk_container_add (GTK_CONTAINER (priv->dock), frame);
+ box = gtk_vbox_new (FALSE, 0);
+ gtk_container_add (GTK_CONTAINER (frame), box);
+
+ /* + */
+ button->plus_button = gtk_button_new_with_label ("+");
+ gtk_button_set_relief (GTK_BUTTON (button->plus_button), GTK_RELIEF_NONE);
+ g_signal_connect (button->plus_button, "button-press-event",
+ G_CALLBACK (cb_button_press), button);
+ g_signal_connect (button->plus_button, "button-release-event",
+ G_CALLBACK (cb_button_release), button);
+ gtk_box_pack_start (GTK_BOX (box), button->plus_button, TRUE, FALSE, 0);
+
+ /* scale */
+ priv->scale = gtk_scale_button_scale_new (button, 0., 100., 2.);
+ gtk_widget_set_size_request (priv->scale, -1, SCALE_SIZE);
+ gtk_scale_set_draw_value (GTK_SCALE (priv->scale), FALSE);
+ gtk_range_set_inverted (GTK_RANGE (priv->scale), TRUE);
+ gtk_box_pack_start (GTK_BOX (box), priv->scale, TRUE, FALSE, 0);
+ g_signal_connect (priv->scale, "grab-notify",
+ G_CALLBACK (cb_scale_grab_notify), button);
+
+ /* - */
+ button->minus_button = gtk_button_new_with_label ("-");
+ gtk_button_set_relief (GTK_BUTTON (button->minus_button), GTK_RELIEF_NONE);
+ g_signal_connect (button->minus_button, "button-press-event",
+ G_CALLBACK (cb_button_press), button);
+ g_signal_connect (button->minus_button, "button-release-event",
+ G_CALLBACK (cb_button_release), button);
+ gtk_box_pack_start (GTK_BOX (box), button->minus_button, TRUE, FALSE, 0);
+
+ /* set button text and size */
+ priv->size = GTK_ICON_SIZE_SMALL_TOOLBAR;
+ gtk_scale_button_update_icon (button);
+}
+
+static void
+gtk_scale_button_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkScaleButton *button;
+
+ button = GTK_SCALE_BUTTON (object);
+
+ switch (prop_id)
+ {
+ case PROP_VALUE:
+ gtk_scale_button_set_value (button, g_value_get_double (value));
+ break;
+ case PROP_SIZE:
+ {
+ GtkIconSize size;
+ size = g_value_get_enum (value);
+ if (button->priv->size != size)
+ {
+ button->priv->size = size;
+ gtk_scale_button_update_icon (button);
+ }
+ }
+ break;
+ case PROP_ADJUSTMENT:
+ gtk_scale_button_set_adjustment (button, g_value_get_object (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_scale_button_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkScaleButton *button;
+ GtkScaleButtonPrivate *priv;
+
+ button = GTK_SCALE_BUTTON (object);
+ priv = button->priv;
+
+ switch (prop_id)
+ {
+ case PROP_VALUE:
+ g_value_set_float (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;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_scale_button_dispose (GObject *object)
+{
+ GtkScaleButton *button;
+ GtkScaleButtonPrivate *priv;
+
+ button = GTK_SCALE_BUTTON (object);
+
+ priv = button->priv;
+
+ if (priv && priv->dock)
+ {
+ gtk_widget_destroy (priv->dock);
+ priv->dock = NULL;
+ }
+
+ if (priv && priv->click_id != 0)
+ {
+ g_source_remove (priv->click_id);
+ priv->click_id = 0;
+ }
+
+ if (priv && priv->icon_list)
+ {
+ g_strfreev (priv->icon_list);
+ priv->icon_list = NULL;
+ }
+
+ g_free (priv);
+ button->priv = NULL;
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+/**
+ * gtk_scale_button_new
+ * @size: a stock icon size
+ * @lower: the minimum value of the scale (usually 0)
+ * @upper: the maximum value of the scale (usually 100)
+ * @step_increment: the stepping of value when a scroll-wheel event,
+ * or up/down arrow event occurs (usually 2)
+ * @icons: a %NULL-terminated array of icon names, or %NULL if
+ * you want to set the list later with gtk_scale_button_set_icons(). See
+ * gtk_scale_button_set_icons() for details.
+ *
+ * Creates a #GtkScaleButton, with a range between lower and upper, with
+ * a stepping of step_increment.
+ *
+ * Return value: a new #GtkScaleButton
+ *
+ * Since: 2.12
+ */
+GtkWidget *
+gtk_scale_button_new (GtkIconSize size,
+ gdouble lower,
+ gdouble upper,
+ gdouble step_increment,
+ const gchar **icons)
+{
+ GtkScaleButton *button;
+ GtkScaleButtonPrivate *priv;
+
+ button = g_object_new (GTK_TYPE_SCALE_BUTTON, NULL);
+ priv = button->priv;
+
+ if (icons != NULL)
+ gtk_scale_button_set_icons (button, icons);
+
+ gtk_range_set_range (GTK_RANGE (priv->scale), lower, upper);
+ gtk_range_set_increments (GTK_RANGE (priv->scale),
+ step_increment,
+ 10 * step_increment);
+
+ if (priv->size != size)
+ {
+ priv->size = size;
+ gtk_scale_button_update_icon (button);
+ }
+
+ 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_range_get_value (GTK_RANGE (priv->scale));
+}
+
+/**
+ * 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 "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. The first item in the array
+ * will be used in the button when the current value is the lowest value, the
+ * second item for the highest value. All the subsequent icons will be used for
+ * all the other values, spread evenly over the range of values.
+ *
+ * If there's only one icon in the @icons array, it will be used for all the
+ * values. If only two icons are in the @icons array, the first one will be
+ * used for the bottom 50% of the scale, and the second one for the top 50%.
+ * So it is recommended to use at least 3 icons so that the #GtkScaleButton
+ * reflects the current value of the scale better for the users.
+ *
+ * Since 2.12
+ */
+void
+gtk_scale_button_set_icons (GtkScaleButton *button,
+ const gchar **icons)
+{
+ GtkScaleButtonPrivate *priv;
+
+ g_return_if_fail (GTK_IS_SCALE_BUTTON (button));
+ g_return_if_fail (icons != NULL);
+ g_return_if_fail (icons[0] != NULL);
+
+ priv = button->priv;
+
+ g_strfreev (priv->icon_list);
+ priv->icon_list = g_strdupv ((gchar **) icons);
+ gtk_scale_button_update_icon (button);
+}
+
+/**
+ * gtk_scale_button_get_adjustment
+ * @button: a #GtkScaleButton
+ *
+ * Gets the #GtkAdjustment associated with the #GtkScaleButton's scale.
+ * See gtk_range_get_adjustment() for details.
+ *
+ * Since: 2.12
+ */
+GtkAdjustment*
+gtk_scale_button_get_adjustment (GtkScaleButton *button)
+{
+ GtkRange *range;
+
+ g_return_val_if_fail (GTK_IS_SCALE_BUTTON (button), NULL);
+
+ range = GTK_RANGE (button->priv->scale);
+ g_return_val_if_fail (range != NULL, NULL);
+
+ return gtk_range_get_adjustment (range);
+}
+
+/**
+ * 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));
+ g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
+
+ gtk_range_set_adjustment (GTK_RANGE (button->priv->scale),
+ adjustment);
+}
+
+/*
+ * 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 = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
+
+ 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, ystartoff;
+ gdouble v;
+ GdkDisplay *display;
+ GdkScreen *screen;
+
+ button = GTK_SCALE_BUTTON (widget);
+ priv = button->priv;
+ adj = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
+
+ 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;
+ gtk_window_move (GTK_WINDOW (priv->dock), x, y - (SCALE_SIZE / 2));
+ gtk_widget_show_all (priv->dock);
+ gdk_window_get_origin (priv->dock->window, &dx, &dy);
+ dy += priv->dock->allocation.y;
+ gdk_window_get_origin (priv->scale->window, &sx, &sy);
+ sy += priv->scale->allocation.y;
+ ystartoff = sy - dy;
+ priv->timeout = TRUE;
+
+ /* position (needs widget to be shown already) */
+ v = gtk_scale_button_get_value (button) / (adj->upper - adj->lower);
+ x += (widget->allocation.width - priv->dock->allocation.width) / 2;
+ y -= ystartoff;
+ 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);
+
+ /* 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,
+ button_event->y);
+ gdk_screen_get_monitor_geometry (screen, monitor, &rect);
+
+ y += button_event->y;
+ if (y < rect.y)
+ y = rect.y;
+ else if (y + d->allocation.height > rect.height + rect.y)
+ y = rect.y + rect.height - d->allocation.height;
+
+ if (x < rect.x)
+ x = rect.x;
+ else if (x + d->allocation.width > rect.width - rect.x)
+ x = rect.x + rect.width - d->allocation.width;
+ }
+
+ gtk_window_move (GTK_WINDOW (priv->dock), x, y);
+
+ if (event->type == GDK_BUTTON_PRESS)
+ GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, (GdkEventButton *) event);
+
+ /* grab focus */
+ gtk_grab_add (priv->dock);
+
+ if (gdk_pointer_grab (priv->dock->window, TRUE,
+ GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
+ GDK_POINTER_MOTION_MASK, NULL, NULL, time)
+ != GDK_GRAB_SUCCESS)
+ {
+ gtk_grab_remove (priv->dock);
+ gtk_widget_hide (priv->dock);
+ return FALSE;
+ }
+
+ if (gdk_keyboard_grab (priv->dock->window, TRUE, time) != GDK_GRAB_SUCCESS)
+ {
+ gdk_display_pointer_ungrab (display, time);
+ gtk_grab_remove (priv->dock);
+ gtk_widget_hide (priv->dock);
+ return FALSE;
+ }
+
+ gtk_widget_grab_focus (priv->dock);
+
+ if (event->type == GDK_BUTTON_PRESS)
+ {
+ 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. */
+ 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;
+ 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_from_bindings (GtkWidget *widget)
+{
+ GdkEvent *ev;
+
+ ev = gdk_event_new (GDK_KEY_RELEASE);
+ gtk_scale_popup (widget, ev, GDK_CURRENT_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;
+
+ if (was_grabbed != FALSE)
+ return;
+
+ priv = button->priv;
+
+ if (gtk_widget_is_ancestor (gtk_grab_get_current (), priv->dock))
+ return;
+
+ display = gtk_widget_get_display (priv->dock);
+ gdk_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
+ gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
+ gtk_grab_remove (priv->dock);
+
+ /* 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 = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
+
+ 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 = gtk_range_get_adjustment (GTK_RANGE (priv->scale));
+
+ if (priv->click_id != 0)
+ g_source_remove (priv->click_id);
+
+ if (widget == button->plus_button)
+ priv->direction = fabs (adj->page_increment);
+ else
+ priv->direction = - fabs (adj->page_increment);
+
+ priv->click_id = g_timeout_add (priv->click_timeout,
+ (GSourceFunc) 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_display_keyboard_ungrab (display, event->time);
+ gdk_display_pointer_ungrab (display, event->time);
+ gtk_grab_remove (priv->dock);
+
+ /* 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_from_bindings (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_display_keyboard_ungrab (display, GDK_CURRENT_TIME);
+ gdk_display_pointer_ungrab (display, GDK_CURRENT_TIME);
+ gtk_grab_remove (priv->dock);
+
+ /* 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_from_bindings (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))
+
+typedef struct _GtkScaleButtonScaleClass {
+ GtkVScaleClass parent_class;
+} GtkScaleButtonScaleClass;
+
+typedef struct _GtkScaleButtonScale {
+ GtkVScale parent;
+ GtkScaleButton *button;
+} GtkScaleButtonScale;
+
+static GType gtk_scale_button_scale_get_type (void);
+static void gtk_scale_button_scale_class_init (GtkScaleButtonScaleClass *klass);
+static gboolean gtk_scale_button_scale_press (GtkWidget *widget,
+ GdkEventButton *event);
+static gboolean gtk_scale_button_scale_release (GtkWidget *widget,
+ GdkEventButton *event);
+
+static GtkVScaleClass *scale_parent_class = NULL;
+
+G_DEFINE_TYPE (GtkScaleButtonScale, gtk_scale_button_scale, GTK_TYPE_VSCALE)
+
+static void
+gtk_scale_button_scale_class_init (GtkScaleButtonScaleClass *klass)
+{
+ GtkWidgetClass *gtkwidget_class = GTK_WIDGET_CLASS (klass);
+ GtkRangeClass *gtkrange_class = GTK_RANGE_CLASS (klass);
+
+ scale_parent_class = g_type_class_peek_parent (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,
+ gdouble min,
+ gdouble max,
+ gdouble step)
+{
+ GtkScaleButtonScale *scale;
+ GtkScaleButtonPrivate *priv;
+ GtkObject *adj;
+
+ priv = button->priv;
+ scale = g_object_new (GTK_TYPE_SCALE_BUTTON_SCALE, NULL);
+ adj = gtk_adjustment_new (min, min, max, step, 10 * step, 0);
+ gtk_range_set_adjustment (GTK_RANGE (scale), GTK_ADJUSTMENT (adj));
+ scale->button = button;
+
+ return GTK_WIDGET (scale);
+}
+
+static gboolean
+gtk_scale_button_scale_press (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ GtkScaleButtonScale *scale;
+ GtkScaleButtonPrivate *priv;
+
+ scale = GTK_SCALE_BUTTON_SCALE (widget);
+ priv = scale->button->priv;
+
+ /* the scale will grab input; if we have input grabbed, all goes
+ * horribly wrong, so let's not do that. */
+ gtk_grab_remove (priv->dock);
+
+ return GTK_WIDGET_CLASS (scale_parent_class)->button_press_event (widget, event);
+}
+
+static gboolean
+gtk_scale_button_scale_release (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ GtkScaleButtonScale *scale;
+ GtkScaleButtonPrivate *priv;
+ gboolean res;
+
+ scale = GTK_SCALE_BUTTON_SCALE (widget);
+ priv = scale->button->priv;
+
+ if (priv->timeout)
+ {
+ /* if we did a quick click, leave the window open; else, hide it */
+ if (event->time > priv->pop_time + priv->click_timeout)
+ {
+ gtk_scale_button_release_grab (scale->button, event);
+ GTK_WIDGET_CLASS (scale_parent_class)->button_release_event (widget, event);
+ return TRUE;
+ }
+ priv->timeout = FALSE;
+ }
+
+ res = GTK_WIDGET_CLASS (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_grab_add (priv->dock);
+
+ 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 == NULL || priv->icon_list[0] == NULL)
+ {
+ gtk_image_set_from_stock (GTK_IMAGE (priv->image),
+ GTK_STOCK_MISSING_IMAGE,
+ priv->size);
+ return;
+ }
+
+ for (num_icons = 0; priv->icon_list[num_icons] != NULL; num_icons++) {}
+
+ /* 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 = gtk_range_get_adjustment (range);
+ 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)
+{
+ GtkScaleButtonScale *scale = GTK_SCALE_BUTTON_SCALE (range);
+ GtkScaleButton *button = scale->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");
+}
+
+/*
+ * vim: sw=2 ts=8 cindent noai bs=2
+ */
projects / gtk4.git / commitdiff