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/* GNOME Volume Applet
* Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* dock.c: floating window containing volume widgets
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib-object.h>
#include <glib/gi18n.h>
#include <gtk/gtk.h>
#include "dock.h"
static void gnome_volume_applet_dock_class_init (GnomeVolumeAppletDockClass *klass);
static void gnome_volume_applet_dock_init (GnomeVolumeAppletDock *applet);
static void gnome_volume_applet_dock_dispose (GObject *object);
static gboolean cb_button_press (GtkWidget *widget,
GdkEventButton *button,
gpointer data);
static gboolean cb_button_release (GtkWidget *widget,
GdkEventButton *button,
gpointer data);
static GtkWindowClass *parent_class = NULL;
G_DEFINE_TYPE (GnomeVolumeAppletDock, gnome_volume_applet_dock, GTK_TYPE_WINDOW)
static void
gnome_volume_applet_dock_class_init (GnomeVolumeAppletDockClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
parent_class = g_type_class_ref (GTK_TYPE_WINDOW);
gobject_class->dispose = gnome_volume_applet_dock_dispose;
}
static void
gnome_volume_applet_dock_init (GnomeVolumeAppletDock *dock)
{
dock->orientation = -1;
dock->timeout = 0;
#if 0
/* We can't use a simple GDK_WINDOW_TYPE_HINT_DOCK here since
* the dock windows don't accept input by default. Instead we use
* the popup menu type. In the end we set everything by hand anyway
* since what happens depends very heavily on the window manager. */
gtk_window_set_type_hint (GTK_WINDOW (dock),
GDK_WINDOW_TYPE_HINT_POPUP_MENU);
gtk_window_set_keep_above (GTK_WINDOW (dock), TRUE);
gtk_window_set_decorated (GTK_WINDOW (dock), FALSE);
gtk_window_set_skip_taskbar_hint (GTK_WINDOW (dock), TRUE);
gtk_window_set_skip_pager_hint (GTK_WINDOW (dock), TRUE);
gtk_window_set_resizable (GTK_WINDOW (dock), FALSE);
gtk_window_stick (GTK_WINDOW (dock));
#else
/* This works well, except that keyboard focus is impossible. */
gtk_window_set_type_hint (GTK_WINDOW (dock),
GDK_WINDOW_TYPE_HINT_DOCK);
gtk_window_set_decorated (GTK_WINDOW (dock), FALSE);
gtk_window_set_resizable (GTK_WINDOW (dock), FALSE);
gtk_window_stick (GTK_WINDOW (dock));
GTK_WIDGET_SET_FLAGS (dock, GTK_CAN_FOCUS);
#endif
}
GtkWidget *
gnome_volume_applet_dock_new (GtkOrientation orientation)
{
GtkWidget *table, *button, *scale, *frame;
GnomeVolumeAppletDock *dock;
gint i;
static struct {
gint w, h;
gint x[3], y[3]; /* Locations for widgets in the table. The widget
coordinate order is '+', '-', then the slider. */
GtkWidget * (* sfunc) (GtkAdjustment *adj);
gint sw, sh;
gboolean inverted;
} magic[2] = {
{ 3, 1, { 2, 0, 1 }, { 0, 0, 0 }, gtk_hscale_new, 100, -1, FALSE},
{ 1, 3, { 0, 0, 0 }, { 0, 2, 1 }, gtk_vscale_new, -1, 100, TRUE}
};
dock = g_object_new (GNOME_VOLUME_APPLET_TYPE_DOCK,
NULL);
dock->orientation = orientation;
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
table = gtk_table_new (magic[orientation].w,
magic[orientation].h, FALSE);
button = gtk_button_new_with_label (_("-"));
dock->minus = GTK_BUTTON (button);
button = gtk_button_new_with_label (_("+")); /* The value of button falls
through into the loop. */
dock->plus = GTK_BUTTON (button);
for (i = 0; i<2; i++) { /* for button in (dock->plus, dock->minus): */
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
gtk_table_attach_defaults (GTK_TABLE (table), button,
magic[orientation].x[i],
magic[orientation].x[i] + 1,
magic[orientation].y[i],
magic[orientation].y[i] + 1);
g_signal_connect (button, "button-press-event",
G_CALLBACK (cb_button_press), dock);
g_signal_connect (button, "button-release-event",
G_CALLBACK (cb_button_release), dock);
button = GTK_WIDGET (dock->minus);
}
scale = magic[orientation].sfunc (NULL);
dock->scale = GTK_RANGE (scale);
gtk_widget_set_size_request (scale,
magic[orientation].sw,
magic[orientation].sh);
gtk_scale_set_draw_value (GTK_SCALE (scale), FALSE);
gtk_range_set_inverted (dock->scale, magic[orientation].inverted);
gtk_table_attach_defaults (GTK_TABLE (table), scale,
magic[orientation].x[2],
magic[orientation].x[2] + 1,
magic[orientation].y[2],
magic[orientation].y[2] + 1);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_container_add (GTK_CONTAINER (dock), frame);
return GTK_WIDGET (dock);
}
static void
destroy_source (GnomeVolumeAppletDock *dock)
{
if (dock->timeout) {
g_source_remove (dock->timeout);
dock->timeout = 0;
}
}
static void
gnome_volume_applet_dock_dispose (GObject *object)
{
GnomeVolumeAppletDock *dock = GNOME_VOLUME_APPLET_DOCK (object);
destroy_source (dock);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
/*
* Change the value of the slider. This is called both from a direct
* call from the +/- button callbacks and via a timer so holding down the
* buttons changes the volume.
*/
static gboolean
cb_timeout (gpointer data)
{
GnomeVolumeAppletDock *dock = data;
GtkAdjustment *adj;
gfloat volume;
gboolean res = TRUE;
if (!dock->timeout)
return FALSE;
adj = gtk_range_get_adjustment (dock->scale);
volume = gtk_range_get_value (dock->scale);
volume += dock->direction * adj->step_increment;
if (volume <= adj->lower) {
volume = adj->lower;
res = FALSE;
} else if (volume >= adj->upper) {
volume = adj->upper;
res = FALSE;
}
gtk_range_set_value (dock->scale, volume);
if (!res)
dock->timeout = 0;
return res;
}
/*
* React if user presses +/- buttons.
*/
static gboolean
cb_button_press (GtkWidget *widget,
GdkEventButton *button,
gpointer data)
{
GnomeVolumeAppletDock *dock = data;
dock->direction = (GTK_BUTTON (widget) == dock->plus) ? 1 : -1;
destroy_source (dock);
dock->timeout = g_timeout_add (100, cb_timeout, data);
cb_timeout (data);
return TRUE;
}
static gboolean
cb_button_release (GtkWidget *widget,
GdkEventButton *button,
gpointer data)
{
GnomeVolumeAppletDock *dock = data;
destroy_source (dock);
return TRUE;
}
/*
* Set the adjustment for the slider.
*/
void
gnome_volume_applet_dock_change (GnomeVolumeAppletDock *dock,
GtkAdjustment *adj)
{
gtk_range_set_adjustment (dock->scale, adj);
}
void
gnome_volume_applet_dock_set_focus (GnomeVolumeAppletDock *dock)
{
gtk_widget_grab_focus (GTK_WIDGET (dock->scale));
}
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