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gstreamer/tests/examples/scaletempo/demo-gui.c
Benjamin Otte 33c2f5fb01 Add -Wwrite-strings 
and fix its warnings
2010-03-22 13:16:33 +01:00

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/* demo-gui.c
* Copyright (C) 2008 Rov Juvano <rovjuvano@users.sourceforge.net>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gtk/gtk.h>
#include <glib/gprintf.h>
#include <math.h>
#include "demo-gui.h"
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN "demo-gui"
#if !GTK_CHECK_VERSION(2,12,0)
#define gtk_widget_error_bell(w) /* nop */
#endif
enum
{
SIGNAL_ERROR,
SIGNAL_QUITING,
LAST_SIGNAL
};
static guint demo_gui_signals[LAST_SIGNAL] = { 0 };
enum
{
PROP_0,
};
typedef struct _DemoGuiPrivate
{
DemoPlayer *player;
GList *uris;
GList *now_playing;
gboolean is_playing;
GtkWidget *window;
GtkEntry *rate_entry;
GtkStatusbar *status_bar;
gint position_updater_id;
GtkRange *seek_range;
GtkLabel *amount_played;
GtkLabel *amount_to_play;
GtkAction *play_action;
GtkAction *pause_action;
GtkAction *open_file;
GtkAction *playlist_next;
} DemoGuiPrivate;
#define DEMO_GUI_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), DEMO_TYPE_GUI, DemoGuiPrivate))
/* forward declarations */
static GValueArray *build_gvalue_array (guint n_values, ...);
/* Handlers for status bar and seek bar */
static int
pop_status_bar (gpointer data)
{
GValueArray *gvalues = (GValueArray *) data;
GtkStatusbar *sb =
GTK_STATUSBAR (g_value_get_object (g_value_array_get_nth (gvalues, 0)));
guint msg_id = g_value_get_uint (g_value_array_get_nth (gvalues, 1));
gtk_statusbar_remove (sb, 0, msg_id);
return FALSE;
}
#define DEFAULT_STATUS_BAR_TIMEOUT 2
static void
status_bar_printf (GtkStatusbar * sb, guint seconds, gchar const *format, ...)
{
va_list args;
gchar msg[80];
guint msg_id;
va_start (args, format);
g_vsnprintf (msg, 80, format, args);
va_end (args);
msg_id = gtk_statusbar_push (sb, 0, msg);
g_timeout_add (2000, pop_status_bar,
build_gvalue_array (2, G_TYPE_OBJECT, sb, G_TYPE_UINT, msg_id));
}
#define PRINTF_TIME_FORMAT "u:%02u:%02u"
#define PRINTF_TIME_ARGS(t) \
(t >= 0) ? (guint) ((t) / (60 * 60)) : 99, \
(t >= 0) ? (guint) (((t) / (60)) % 60) : 99, \
(t >= 0) ? (guint) ((t) % 60) : 99
static gchar *
demo_gui_seek_bar_format (GtkScale * scale, gdouble value, gpointer data)
{
return g_strdup_printf ("%" PRINTF_TIME_FORMAT,
PRINTF_TIME_ARGS ((gint64) value));
}
static gboolean
update_position (gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
gchar pos_str[16], dur_str[16];
gint pos = demo_player_get_position (priv->player);
if (pos > 0) {
gint dur = demo_player_get_duration (priv->player);
g_snprintf (pos_str, 16, "%" PRINTF_TIME_FORMAT, PRINTF_TIME_ARGS (pos));
if (dur > 0) {
g_snprintf (dur_str, 16, "-%" PRINTF_TIME_FORMAT,
PRINTF_TIME_ARGS (dur - pos));
} else {
dur = pos;
g_sprintf (dur_str, "-??:??:??");
}
if (dur > 0)
gtk_range_set_range (GTK_RANGE (priv->seek_range), 0, (gdouble) dur);
gtk_range_set_value (GTK_RANGE (priv->seek_range), (gdouble) pos);
} else {
g_sprintf (pos_str, "??:??:??");
g_sprintf (dur_str, "-??:??:??");
}
gtk_label_set_text (GTK_LABEL (priv->amount_played), pos_str);
gtk_label_set_text (GTK_LABEL (priv->amount_to_play), dur_str);
return priv->is_playing;
}
static gboolean
demo_gui_seek_bar_change (GtkRange * range,
GtkScrollType scroll, gdouble value, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
gint new_second = (gint) value;
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Seeking to %i second", new_second);
demo_player_seek_to (priv->player, new_second);
return FALSE;
}
/* Callbacks for actions */
static void
demo_gui_do_change_rate (GtkAction * action, gpointer data)
{
GValueArray *gvalues = (GValueArray *) data;
DemoGui *gui = g_value_get_object (g_value_array_get_nth (gvalues, 0));
gdouble scale_amount =
g_value_get_double (g_value_array_get_nth (gvalues, 1));
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Changing rate by %3.2lf", scale_amount);
demo_player_scale_rate (priv->player, scale_amount);
}
static void
demo_gui_do_set_rate (GtkAction * action, gpointer data)
{
GValueArray *gvalues = (GValueArray *) data;
DemoGui *gui = g_value_get_object (g_value_array_get_nth (gvalues, 0));
gdouble new_rate = g_value_get_double (g_value_array_get_nth (gvalues, 1));
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Setting rate to %3.2lf", new_rate);
demo_player_set_rate (priv->player, new_rate);
}
static gboolean
demo_gui_do_rate_entered (GtkWidget * widget, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
gchar *err = NULL;
const gchar *text = gtk_entry_get_text (GTK_ENTRY (widget));
double new_rate = g_strtod (text, &err);
if (*err) {
gtk_widget_error_bell (priv->window);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Invalid rate: %s", text);
return TRUE;
}
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Setting rate to %3.2lf", new_rate);
demo_player_set_rate (priv->player, new_rate);
return FALSE;
}
static void
demo_gui_do_toggle_advanced (GtkAction * action, gpointer data)
{
GValueArray *gvalues = (GValueArray *) data;
DemoGui *gui =
DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0)));
GtkWidget *stride_ui =
GTK_WIDGET (g_value_get_object (g_value_array_get_nth (gvalues, 1)));
GtkWidget *overlap_ui =
GTK_WIDGET (g_value_get_object (g_value_array_get_nth (gvalues, 2)));
GtkWidget *search_ui =
GTK_WIDGET (g_value_get_object (g_value_array_get_nth (gvalues, 3)));
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
gboolean active;
status_bar_printf (priv->status_bar, 1, "Toggling advanced mode");
active = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action));
gtk_widget_set_sensitive (stride_ui, active);
gtk_widget_set_sensitive (overlap_ui, active);
gtk_widget_set_sensitive (search_ui, active);
}
static void
demo_gui_do_toggle_disabled (GtkAction * action, gpointer data)
{
GValueArray *gvalues = (GValueArray *) data;
DemoGui *gui =
DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0)));
GtkAction *advanced_action =
GTK_ACTION (g_value_get_object (g_value_array_get_nth (gvalues, 1)));
GtkWidget *advanced_ui =
GTK_WIDGET (g_value_get_object (g_value_array_get_nth (gvalues, 2)));
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
gboolean active;
status_bar_printf (priv->status_bar, 1, "Toggling disabled");
active = gtk_toggle_action_get_active (GTK_TOGGLE_ACTION (action));
gtk_action_set_sensitive (GTK_ACTION (advanced_action), !active);
gtk_widget_set_sensitive (GTK_WIDGET (advanced_ui), !active);
g_object_set (G_OBJECT (priv->player), "disabled", active, NULL);
}
static void
demo_gui_do_seek (GtkAction * action, gpointer data)
{
GValueArray *gvalues = (GValueArray *) data;
DemoGui *gui =
DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0)));
gint seconds = g_value_get_int (g_value_array_get_nth (gvalues, 1));
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Requesting seek by %i seconds", seconds);
demo_player_seek_by (priv->player, seconds);
}
static void
demo_gui_do_play (GtkAction * action, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
if (priv->is_playing) {
g_signal_emit (gui, demo_gui_signals[SIGNAL_ERROR], 0, "Already playing");
return;
}
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Requesting playback start");
demo_player_play (priv->player);
}
static void
demo_gui_do_pause (GtkAction * action, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
if (!priv->is_playing) {
g_signal_emit (gui, demo_gui_signals[SIGNAL_ERROR], 0, "Already paused");
return;
}
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Requesting playback pause");
demo_player_pause (priv->player);
}
static void
demo_gui_do_play_pause (GtkAction * action, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Reqesting playback toggle");
if (priv->is_playing)
gtk_action_activate (priv->pause_action);
else
gtk_action_activate (priv->play_action);
}
static void
demo_gui_do_open_file (GtkAction * action, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
GtkWidget *dialog = gtk_file_chooser_dialog_new ("Open File",
GTK_WINDOW (priv->window),
GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
NULL);
if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT) {
char *filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
GError *err = NULL;
g_list_free (priv->uris);
priv->uris = NULL;
priv->now_playing = NULL;
demo_player_load_uri (priv->player, g_filename_to_uri (filename, NULL,
&err));
g_free (filename);
}
gtk_widget_destroy (dialog);
}
static void
demo_gui_do_playlist_prev (GtkAction * action, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
if (priv->now_playing) {
if (priv->now_playing->prev) {
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Playlist previous");
priv->now_playing = priv->now_playing->prev;
} else {
priv->now_playing = NULL;
gtk_widget_error_bell (priv->window);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Beginning of playlist");
return;
}
} else if (priv->uris) {
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Playlist previous: wrap");
priv->now_playing = g_list_last (priv->uris);
} else {
gtk_action_activate (priv->open_file);
return;
}
demo_player_load_uri (priv->player, priv->now_playing->data);
}
static void
demo_gui_do_playlist_next (GtkAction * action, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
if (priv->now_playing) {
if (priv->now_playing->next) {
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Playlist next");
priv->now_playing = priv->now_playing->next;
} else {
priv->now_playing = NULL;
gtk_widget_error_bell (priv->window);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"End of playlist");
return;
}
} else if (priv->uris) {
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Playlist next: wrap");
priv->now_playing = priv->uris;
} else {
gtk_action_activate (priv->open_file);
return;
}
demo_player_load_uri (priv->player, priv->now_playing->data);
}
static void
demo_gui_do_about_dialog (GtkAction * action, gpointer data)
{
static const gchar *authors[] =
{ "Rov Juvano <rovjuvano@users.sourceforge.net>", NULL };
gtk_show_about_dialog (NULL,
"program-name", "gst-scaletempo-demo",
"version", VERSION,
"authors", authors,
"license", "This program is free software: you can redistribute it and/or modify\n\
it under the terms of the GNU General Public License as published by\n\
the Free Software Foundation, either version 3 of the License, or\n\
(at your option) any later version.\n\
\n\
This program is distributed in the hope that it will be useful,\n\
but WITHOUT ANY WARRANTY; without even the implied warranty of\n\
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n\
GNU General Public License for more details.\n\
\n\
You should have received a copy of the GNU General Public License\n\
along with this program. If not, see <http://www.gnu.org/licenses/>.", "title", "About gst-scaletempo-demo", NULL);
}
static void
demo_gui_do_quit (gpointer source, gpointer data)
{
gtk_main_quit ();
g_signal_emit (DEMO_GUI (data), demo_gui_signals[SIGNAL_QUITING], 0, NULL);
}
static gboolean
demo_gui_request_set_stride (GtkSpinButton * spinbutton, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
guint new_stride = gtk_spin_button_get_value_as_int (spinbutton);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Reqesting setting stride to %u ms", new_stride);
g_object_set (G_OBJECT (priv->player), "stride", new_stride, NULL);
return TRUE;
}
static gboolean
demo_gui_request_set_overlap (GtkSpinButton * spinbutton, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
gdouble new_overlap = gtk_spin_button_get_value_as_int (spinbutton);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Requesting setting overlap to %2.0lf%%", new_overlap);
g_object_set (G_OBJECT (priv->player), "overlap", new_overlap / 100.0, NULL);
return TRUE;
}
static gboolean
demo_gui_request_set_search (GtkSpinButton * spinbutton, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
guint new_search = gtk_spin_button_get_value_as_int (spinbutton);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Requesting setting search to %u ms", new_search);
g_object_set (G_OBJECT (priv->player), "search", new_search, NULL);
return TRUE;
}
/* Callbacks from signals */
static void
demo_gui_rate_changed (DemoPlayer * player, gdouble new_rate, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
gchar e[6];
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Rate changed to %3.2lf", new_rate);
g_snprintf (e, 6, "%3.2f", new_rate);
gtk_entry_set_text (GTK_ENTRY (priv->rate_entry), e);
}
static void
demo_gui_playing_started (DemoPlayer * player, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
priv->is_playing = TRUE;
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Playing started");
gtk_action_set_sensitive (priv->play_action, FALSE);
gtk_action_set_sensitive (priv->pause_action, TRUE);
gtk_action_set_visible (priv->play_action, FALSE);
gtk_action_set_visible (priv->pause_action, TRUE);
if (priv->position_updater_id) {
g_source_remove (priv->position_updater_id);
priv->position_updater_id = 0;
}
update_position (gui);
priv->position_updater_id = g_timeout_add (1000, update_position, gui);
}
static void
demo_gui_playing_paused (DemoPlayer * player, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
gtk_action_set_sensitive (priv->play_action, TRUE);
gtk_action_set_sensitive (priv->pause_action, FALSE);
gtk_action_set_visible (priv->play_action, TRUE);
gtk_action_set_visible (priv->pause_action, FALSE);
priv->is_playing = FALSE;
if (priv->position_updater_id)
g_source_remove (priv->position_updater_id);
priv->position_updater_id = 0;
update_position (gui);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Playing paused");
}
static void
demo_gui_playing_ended (DemoPlayer * player, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Playing ended");
gtk_action_activate (priv->playlist_next);
}
static void
demo_gui_player_errored (DemoPlayer * player, const gchar * msg, gpointer data)
{
DemoGui *gui = DEMO_GUI (data);
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
status_bar_printf (priv->status_bar, 5, msg);
}
static void
demo_gui_stride_changed (DemoPlayer * player, GParamSpec * pspec, gpointer data)
{
GValueArray *gvalues = (GValueArray *) data;
DemoGui *gui =
DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0)));
GtkEntry *entry =
GTK_ENTRY (g_value_get_object (g_value_array_get_nth (gvalues, 1)));
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
guint new_stride;
gchar e[6];
g_object_get (G_OBJECT (player), "stride", &new_stride, NULL);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Stride changed to %u", new_stride);
snprintf (e, 6, "%u", new_stride);
gtk_entry_set_text (entry, e);
}
static void
demo_gui_overlap_changed (DemoPlayer * player,
GParamSpec * pspec, gpointer data)
{
GValueArray *gvalues = (GValueArray *) data;
DemoGui *gui =
DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0)));
GtkEntry *entry =
GTK_ENTRY (g_value_get_object (g_value_array_get_nth (gvalues, 1)));
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
gdouble new_overlap;
gchar e[6];
g_object_get (G_OBJECT (player), "overlap", &new_overlap, NULL);
new_overlap *= 100;
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Overlap changed to %2.0lf%%", new_overlap);
snprintf (e, 6, "%2.0f", new_overlap);
gtk_entry_set_text (entry, e);
}
static void
demo_gui_search_changed (DemoPlayer * player, GParamSpec * pspec, gpointer data)
{
GValueArray *gvalues = (GValueArray *) data;
DemoGui *gui =
DEMO_GUI (g_value_get_object (g_value_array_get_nth (gvalues, 0)));
GtkEntry *entry =
GTK_ENTRY (g_value_get_object (g_value_array_get_nth (gvalues, 1)));
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
guint new_search;
gchar e[6];
g_object_get (G_OBJECT (player), "search", &new_search, NULL);
status_bar_printf (priv->status_bar, DEFAULT_STATUS_BAR_TIMEOUT,
"Search changed to %u", new_search);
snprintf (e, 6, "%u", new_search);
gtk_entry_set_text (entry, e);
}
/* method implementations */
static void
demo_gui_set_player_func (DemoGui * gui, DemoPlayer * player)
{
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
if (priv->player) {
g_signal_handlers_disconnect_by_func (G_OBJECT (priv->player),
G_CALLBACK (demo_gui_rate_changed), gui);
g_signal_handlers_disconnect_by_func (G_OBJECT (priv->player),
G_CALLBACK (demo_gui_playing_started), gui);
g_signal_handlers_disconnect_by_func (G_OBJECT (priv->player),
G_CALLBACK (demo_gui_playing_paused), gui);
g_signal_handlers_disconnect_by_func (G_OBJECT (priv->player),
G_CALLBACK (demo_gui_playing_ended), gui);
g_signal_handlers_disconnect_by_func (G_OBJECT (priv->player),
G_CALLBACK (demo_gui_player_errored), gui);
g_object_unref (priv->player);
}
g_object_ref (player);
priv->player = player;
g_signal_connect (G_OBJECT (priv->player), "error",
G_CALLBACK (demo_gui_player_errored), gui);
g_signal_connect (G_OBJECT (priv->player), "rate-changed",
G_CALLBACK (demo_gui_rate_changed), gui);
g_signal_connect (G_OBJECT (priv->player), "playing-started",
G_CALLBACK (demo_gui_playing_started), gui);
g_signal_connect (G_OBJECT (priv->player), "playing-paused",
G_CALLBACK (demo_gui_playing_paused), gui);
g_signal_connect (G_OBJECT (priv->player), "playing-ended",
G_CALLBACK (demo_gui_playing_ended), gui);
priv->is_playing = FALSE;
}
static void
demo_gui_set_playlist_func (DemoGui * gui, GList * uris)
{
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
priv->uris = uris;
}
typedef struct _ActionEntry
{
GtkAction *action;
GtkWidget *button;
const gchar *accel;
const gchar *name;
const gchar *label;
const gchar *tooltip;
const gchar *stock_id;
GtkAccelGroup *accel_group;
GtkActionGroup *action_group;
GCallback callback;
gpointer data;
} ActionEntry;
static GValueArray *
build_gvalue_array (guint n_values, ...)
{
va_list args;
GValueArray *gva;
int i;
va_start (args, n_values);
gva = g_value_array_new (n_values);
for (i = 0; i < n_values; i++) {
GType type = va_arg (args, GType);
GValue *gval = g_new0 (GValue, 1);
if (type == G_TYPE_INT) {
gint value = va_arg (args, gint);
g_value_set_int (g_value_init (gval, G_TYPE_INT), value);
} else if (type == G_TYPE_UINT) {
guint value = va_arg (args, guint);
g_value_set_uint (g_value_init (gval, G_TYPE_UINT), value);
} else if (type == G_TYPE_DOUBLE) {
double value = va_arg (args, double);
g_value_set_double (g_value_init (gval, G_TYPE_DOUBLE), value);
} else if (type == G_TYPE_OBJECT) {
GObject *value = va_arg (args, GObject *);
g_value_set_object (g_value_init (gval, G_TYPE_OBJECT), value);
} else {
g_critical ("build_gvalue_array cannot handle type (%s)",
g_type_name (type));
va_end (args);
return NULL;
}
g_value_array_append (gva, gval);
}
va_end (args);
return gva;
}
static void
create_action (ActionEntry * p)
{
p->action = gtk_action_new (p->name, p->label, p->tooltip, p->stock_id);
gtk_action_group_add_action_with_accel (p->action_group, p->action, p->accel);
gtk_action_set_accel_group (p->action, p->accel_group);
gtk_action_connect_accelerator (p->action);
p->button = gtk_button_new ();
gtk_action_connect_proxy (p->action, p->button);
gtk_button_set_image (GTK_BUTTON (p->button),
gtk_action_create_icon (p->action, GTK_ICON_SIZE_BUTTON));
g_signal_connect (G_OBJECT (p->action), "activate", p->callback, p->data);
}
static void
demo_gui_show_func (DemoGui * gui)
{
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
GtkWidget *window;
GtkAccelGroup *accel_group;
GtkActionGroup *action_group;
GtkAction *toggle_advanced, *toggle_disabled;
ActionEntry *slower_lg, *slower_sm, *faster_sm, *faster_lg, *normal,
*rewind_lg, *rewind_sm, *forward_sm, *forward_lg, *pause, *play,
*play_pause, *open_file, *playlist_prev, *playlist_next, *quit, *about;
GtkRequisition pause_size;
GtkWidget *rate_entry, *rate_label, *toolbox, *stride_ui, *overlap_ui,
*search_ui, *propbox, *adv_check, *disabled_check, *media_controls,
*amount_played, *amount_to_play, *seek_range, *seek_bar, *status_bar,
*file_menu, *file_menu_item, *media_menu_item, *demo_menu,
*demo_menu_item, *menu_bar, *toplevel_box, *media_menu;
GError *error = NULL;
gtk_init (NULL, NULL);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_signal_connect (G_OBJECT (window), "destroy", G_CALLBACK (demo_gui_do_quit),
gui);
accel_group = gtk_accel_group_new ();
gtk_window_add_accel_group (GTK_WINDOW (window), accel_group);
action_group = gtk_action_group_new ("toolbar");
slower_lg = &(ActionEntry) {
NULL, NULL,
"braceleft", "slower-large",
"2x Slower", "half playback rate",
GTK_STOCK_GO_DOWN, accel_group, action_group,
G_CALLBACK (demo_gui_do_change_rate),
build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_DOUBLE, 0.5)
};
create_action (slower_lg);
slower_sm = &(ActionEntry) {
NULL, NULL,
"bracketleft", "slower-small",
"_Slower", "decrease playback rate",
GTK_STOCK_GO_DOWN, accel_group, action_group,
G_CALLBACK (demo_gui_do_change_rate),
build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_DOUBLE, pow (2,
-1.0 / 12))
};
create_action (slower_sm);
faster_sm = &(ActionEntry) {
NULL, NULL,
"bracketright", "faster-small",
"_Faster", "increase playback rate",
GTK_STOCK_GO_UP, accel_group, action_group,
G_CALLBACK (demo_gui_do_change_rate),
build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_DOUBLE, pow (2,
1.0 / 12))
};
create_action (faster_sm);
faster_lg = &(ActionEntry) {
NULL, NULL,
"braceright", "faster-large",
"2X Faster", "double playback rate",
GTK_STOCK_GO_UP, accel_group, action_group,
G_CALLBACK (demo_gui_do_change_rate),
build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_DOUBLE, 2.0)
};
create_action (faster_lg);
normal = &(ActionEntry) {
NULL, NULL,
"backslash", "normal",
"_Normal", "playback normal rate",
GTK_STOCK_CLEAR, accel_group, action_group,
G_CALLBACK (demo_gui_do_set_rate),
build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_DOUBLE, 1.0)
};
create_action (normal);
rewind_lg = &(ActionEntry) {
NULL, NULL,
"<ctrl><shift>Left", "seek-rewind-large",
"Rewind (large)", "seek -30 seconds",
GTK_STOCK_MEDIA_REWIND, accel_group, action_group,
G_CALLBACK (demo_gui_do_seek),
build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_INT, -30)
};
create_action (rewind_lg);
rewind_sm = &(ActionEntry) {
NULL, NULL,
"<ctrl>Left", "seek-rewind-small",
"Rewind", "seek -15 seconds",
GTK_STOCK_MEDIA_REWIND, accel_group, action_group,
G_CALLBACK (demo_gui_do_seek),
build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_INT, -5)
};
create_action (rewind_sm);
forward_sm = &(ActionEntry) {
NULL, NULL,
"<ctrl>Right", "seek-forward-small",
"Forward", "seek +5 seconds",
GTK_STOCK_MEDIA_FORWARD, accel_group, action_group,
G_CALLBACK (demo_gui_do_seek),
build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_INT, 5)
};
create_action (forward_sm);
forward_lg = &(ActionEntry) {
NULL, NULL,
"<ctrl><shift>Right", "seek-forward-large",
"Forward (large)", "seek +30 seconds",
GTK_STOCK_MEDIA_FORWARD, accel_group, action_group,
G_CALLBACK (demo_gui_do_seek),
build_gvalue_array (2, G_TYPE_OBJECT, gui, G_TYPE_INT, 30)
};
create_action (forward_lg);
pause = &(ActionEntry) {
NULL, NULL,
"p", "pause",
"Pause", "Pause playback",
GTK_STOCK_MEDIA_PAUSE, accel_group, action_group,
G_CALLBACK (demo_gui_do_pause), gui};
create_action (pause);
play = &(ActionEntry) {
NULL, NULL,
"<ctrl>p", "play",
"Play", "Start Playback",
GTK_STOCK_MEDIA_PLAY, accel_group, action_group,
G_CALLBACK (demo_gui_do_play), gui};
create_action (play);
gtk_widget_size_request (pause->button, &pause_size);
gtk_widget_set_size_request (play->button, pause_size.width, -1);
play_pause = &(ActionEntry) {
NULL, NULL,
"space", "play-pause",
"Play/Pause", "Toggle playback",
NULL, accel_group, action_group,
G_CALLBACK (demo_gui_do_play_pause), gui};
create_action (play_pause);
open_file = &(ActionEntry) {
NULL, NULL,
"<ctrl>o", "open-file",
"Open File", "Open file for playing",
GTK_STOCK_OPEN, accel_group, action_group,
G_CALLBACK (demo_gui_do_open_file), gui};
create_action (open_file);
playlist_prev = &(ActionEntry) {
NULL, NULL,
"less", "playlist-previous",
"Previous", "Previous in playlist",
GTK_STOCK_MEDIA_PREVIOUS, accel_group, action_group,
G_CALLBACK (demo_gui_do_playlist_prev), gui};
create_action (playlist_prev);
playlist_next = &(ActionEntry) {
NULL, NULL,
"greater", "playlist-next",
"Next", "Next in playlist",
GTK_STOCK_MEDIA_NEXT, accel_group, action_group,
G_CALLBACK (demo_gui_do_playlist_next), gui};
create_action (playlist_next);
quit = &(ActionEntry) {
NULL, NULL,
"q", "quit",
"Quit", "Quit demo",
GTK_STOCK_QUIT, accel_group, action_group,
G_CALLBACK (demo_gui_do_quit), gui};
create_action (quit);
about = &(ActionEntry) {
NULL, NULL,
"<ctrl>h", "about",
"About", "About gst-scaletemo-demo",
GTK_STOCK_ABOUT, accel_group, action_group,
G_CALLBACK (demo_gui_do_about_dialog), gui};
create_action (about);
rate_entry = gtk_entry_new ();
rate_label = gtk_label_new ("Rate:");
gtk_entry_set_max_length (GTK_ENTRY (rate_entry), 5);
gtk_entry_set_text (GTK_ENTRY (rate_entry), "1.0");
gtk_entry_set_width_chars (GTK_ENTRY (rate_entry), 5);
g_signal_connect (G_OBJECT (rate_entry), "activate",
G_CALLBACK (demo_gui_do_rate_entered), gui);
toolbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (toolbox), slower_sm->button, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (toolbox), rate_label, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (toolbox), rate_entry, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (toolbox), faster_sm->button, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (toolbox), normal->button, FALSE, FALSE, 2);
stride_ui =
gtk_spin_button_new (GTK_ADJUSTMENT (gtk_adjustment_new (60, 1, 1000, 1,
10, 0)), 0, 0);
overlap_ui =
gtk_spin_button_new (GTK_ADJUSTMENT (gtk_adjustment_new (20, 0, 100, 5,
10, .00001)), 0, 0);
search_ui =
gtk_spin_button_new (GTK_ADJUSTMENT (gtk_adjustment_new (14, 0, 1000, 1,
10, 0)), 0, 0);
gtk_widget_set_sensitive (stride_ui, FALSE);
gtk_widget_set_sensitive (overlap_ui, FALSE);
gtk_widget_set_sensitive (search_ui, FALSE);
g_signal_connect (G_OBJECT (stride_ui), "output",
G_CALLBACK (demo_gui_request_set_stride), gui);
g_signal_connect (G_OBJECT (overlap_ui), "output",
G_CALLBACK (demo_gui_request_set_overlap), gui);
g_signal_connect (G_OBJECT (search_ui), "output",
G_CALLBACK (demo_gui_request_set_search), gui);
g_signal_connect (G_OBJECT (priv->player), "notify::stride",
G_CALLBACK (demo_gui_stride_changed), build_gvalue_array (2,
G_TYPE_OBJECT, gui, G_TYPE_OBJECT, stride_ui));
g_signal_connect (G_OBJECT (priv->player), "notify::overlap",
G_CALLBACK (demo_gui_overlap_changed), build_gvalue_array (2,
G_TYPE_OBJECT, gui, G_TYPE_OBJECT, overlap_ui));
g_signal_connect (G_OBJECT (priv->player), "notify::search",
G_CALLBACK (demo_gui_search_changed), build_gvalue_array (2,
G_TYPE_OBJECT, gui, G_TYPE_OBJECT, search_ui));
propbox = gtk_hbox_new (FALSE, 0);
adv_check = gtk_check_button_new ();
gtk_box_pack_start (GTK_BOX (propbox), gtk_label_new ("stride:"), FALSE,
FALSE, 2);
gtk_box_pack_start (GTK_BOX (propbox), stride_ui, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (propbox), gtk_label_new ("overlap:"), FALSE,
FALSE, 2);
gtk_box_pack_start (GTK_BOX (propbox), overlap_ui, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (propbox), gtk_label_new ("search:"), FALSE,
FALSE, 2);
gtk_box_pack_start (GTK_BOX (propbox), search_ui, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (propbox), adv_check, FALSE, FALSE, 2);
toggle_advanced =
GTK_ACTION (gtk_toggle_action_new ("advanced", "Enable Parameters",
"Toggle advanced controls", 0));
gtk_action_group_add_action_with_accel (action_group, toggle_advanced,
"<ctrl>a");
gtk_action_set_accel_group (toggle_advanced, accel_group);
gtk_action_connect_accelerator (toggle_advanced);
gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (toggle_advanced), FALSE);
gtk_action_connect_proxy (toggle_advanced, adv_check);
g_signal_connect (G_OBJECT (toggle_advanced), "activate",
G_CALLBACK (demo_gui_do_toggle_advanced), build_gvalue_array (4,
G_TYPE_OBJECT, gui, G_TYPE_OBJECT, stride_ui, G_TYPE_OBJECT,
overlap_ui, G_TYPE_OBJECT, search_ui));
toggle_disabled =
GTK_ACTION (gtk_toggle_action_new ("disabled", "Disable Scaletempo",
"Toggle disabling scaletempo", 0));
gtk_action_group_add_action_with_accel (action_group, toggle_disabled,
"<ctrl>d");
gtk_action_set_accel_group (toggle_disabled, accel_group);
gtk_action_connect_accelerator (toggle_disabled);
gtk_toggle_action_set_active (GTK_TOGGLE_ACTION (toggle_disabled), FALSE);
disabled_check = gtk_check_button_new ();
gtk_action_connect_proxy (toggle_disabled, disabled_check);
g_signal_connect (G_OBJECT (toggle_disabled), "activate",
G_CALLBACK (demo_gui_do_toggle_disabled), build_gvalue_array (3,
G_TYPE_OBJECT, gui, G_TYPE_OBJECT, toggle_advanced, G_TYPE_OBJECT,
propbox));
gtk_box_pack_start (GTK_BOX (toolbox), disabled_check, FALSE, FALSE, 2);
media_controls = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (media_controls), playlist_prev->button, FALSE,
FALSE, 2);
gtk_box_pack_start (GTK_BOX (media_controls), rewind_sm->button, FALSE, FALSE,
2);
gtk_box_pack_start (GTK_BOX (media_controls), play->button, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (media_controls), pause->button, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (media_controls), forward_sm->button, FALSE,
FALSE, 2);
gtk_box_pack_start (GTK_BOX (media_controls), playlist_next->button, FALSE,
FALSE, 2);
amount_played = gtk_label_new ("?:??:??");
amount_to_play = gtk_label_new ("-?:??:??");
gtk_label_set_width_chars (GTK_LABEL (amount_played), 8);
gtk_label_set_width_chars (GTK_LABEL (amount_to_play), 8);
gtk_misc_set_alignment (GTK_MISC (amount_played), 1, 1);
gtk_misc_set_alignment (GTK_MISC (amount_to_play), 0, 1);
seek_range =
gtk_hscale_new (GTK_ADJUSTMENT (gtk_adjustment_new (0.0, 0.0, 0.0, 5.0,
30.0, 0.00)));
gtk_range_set_update_policy (GTK_RANGE (seek_range),
GTK_UPDATE_DISCONTINUOUS);
seek_bar = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (seek_bar), amount_played, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (seek_bar), seek_range, TRUE, TRUE, 2);
gtk_box_pack_start (GTK_BOX (seek_bar), amount_to_play, FALSE, FALSE, 2);
g_signal_connect (G_OBJECT (seek_range), "format-value",
G_CALLBACK (demo_gui_seek_bar_format), gui);
g_signal_connect (G_OBJECT (seek_range), "change-value",
G_CALLBACK (demo_gui_seek_bar_change), gui);
status_bar = gtk_statusbar_new ();
/* Menubar */
file_menu = gtk_menu_new ();
gtk_menu_set_accel_group (GTK_MENU (file_menu), accel_group);
gtk_menu_shell_append (GTK_MENU_SHELL (file_menu),
gtk_action_create_menu_item (open_file->action));
gtk_menu_shell_append (GTK_MENU_SHELL (file_menu),
gtk_action_create_menu_item (about->action));
gtk_menu_shell_append (GTK_MENU_SHELL (file_menu),
gtk_action_create_menu_item (quit->action));
file_menu_item = gtk_menu_item_new_with_mnemonic ("_File");
gtk_menu_item_set_submenu (GTK_MENU_ITEM (file_menu_item), file_menu);
media_menu = gtk_menu_new ();
gtk_menu_set_accel_group (GTK_MENU (media_menu), accel_group);
gtk_menu_shell_append (GTK_MENU_SHELL (media_menu),
gtk_action_create_menu_item (rewind_lg->action));
gtk_menu_shell_append (GTK_MENU_SHELL (media_menu),
gtk_action_create_menu_item (rewind_sm->action));
gtk_menu_shell_append (GTK_MENU_SHELL (media_menu),
gtk_action_create_menu_item (forward_sm->action));
gtk_menu_shell_append (GTK_MENU_SHELL (media_menu),
gtk_action_create_menu_item (forward_lg->action));
gtk_menu_shell_append (GTK_MENU_SHELL (media_menu),
gtk_action_create_menu_item (play->action));
gtk_menu_shell_append (GTK_MENU_SHELL (media_menu),
gtk_action_create_menu_item (pause->action));
gtk_menu_shell_append (GTK_MENU_SHELL (media_menu),
gtk_action_create_menu_item (play_pause->action));
gtk_menu_shell_append (GTK_MENU_SHELL (media_menu),
gtk_action_create_menu_item (playlist_prev->action));
gtk_menu_shell_append (GTK_MENU_SHELL (media_menu),
gtk_action_create_menu_item (playlist_next->action));
media_menu_item = gtk_menu_item_new_with_mnemonic ("_Media");
gtk_menu_item_set_submenu (GTK_MENU_ITEM (media_menu_item), media_menu);
demo_menu = gtk_menu_new ();
gtk_menu_set_accel_group (GTK_MENU (demo_menu), accel_group);
gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu),
gtk_action_create_menu_item (faster_lg->action));
gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu),
gtk_action_create_menu_item (faster_sm->action));
gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu),
gtk_action_create_menu_item (slower_sm->action));
gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu),
gtk_action_create_menu_item (slower_lg->action));
gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu),
gtk_action_create_menu_item (normal->action));
gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu),
gtk_action_create_menu_item (toggle_disabled));
gtk_menu_shell_append (GTK_MENU_SHELL (demo_menu),
gtk_action_create_menu_item (toggle_advanced));
demo_menu_item = gtk_menu_item_new_with_mnemonic ("_Scaletempo");
gtk_menu_item_set_submenu (GTK_MENU_ITEM (demo_menu_item), demo_menu);
menu_bar = gtk_menu_bar_new ();
gtk_menu_shell_append (GTK_MENU_SHELL (menu_bar), file_menu_item);
gtk_menu_shell_append (GTK_MENU_SHELL (menu_bar), media_menu_item);
gtk_menu_shell_append (GTK_MENU_SHELL (menu_bar), demo_menu_item);
/* Toplevel Window */
gtk_window_set_title (GTK_WINDOW (window), "Scaletempo Demo");
toplevel_box = gtk_vbox_new (FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (toplevel_box), 3);
gtk_container_add (GTK_CONTAINER (window), toplevel_box);
gtk_box_pack_start (GTK_BOX (toplevel_box), menu_bar, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (toplevel_box), media_controls, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (toplevel_box), toolbox, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (toplevel_box), propbox, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (toplevel_box), seek_bar, FALSE, FALSE, 2);
gtk_box_pack_start (GTK_BOX (toplevel_box), status_bar, FALSE, FALSE, 2);
priv->window = window;
priv->rate_entry = GTK_ENTRY (rate_entry);
priv->status_bar = GTK_STATUSBAR (status_bar);
priv->seek_range = GTK_RANGE (seek_range);
priv->amount_played = GTK_LABEL (amount_played);
priv->amount_to_play = GTK_LABEL (amount_to_play);
priv->play_action = GTK_ACTION (play->action);
priv->pause_action = GTK_ACTION (pause->action);
priv->open_file = GTK_ACTION (open_file->action);
priv->playlist_next = GTK_ACTION (playlist_next->action);
gtk_action_set_sensitive (priv->pause_action, FALSE);
gtk_action_set_visible (priv->pause_action, FALSE);
gtk_widget_show_all (window);
gtk_widget_grab_focus (seek_range);
gtk_action_activate (priv->playlist_next);
status_bar_printf (GTK_STATUSBAR (status_bar), 5,
"Welcome to the Scaletempo demo.");
if (!g_thread_create ((GThreadFunc) gtk_main, NULL, FALSE, &error)) {
g_signal_emit (gui, demo_gui_signals[SIGNAL_ERROR], 0, error->message);
}
}
/* Method wrappers */
void
demo_gui_set_player (DemoGui * gui, DemoPlayer * player)
{
g_return_if_fail (DEMO_IS_GUI (gui));
g_return_if_fail (DEMO_IS_PLAYER (player));
DEMO_GUI_GET_CLASS (gui)->set_player (gui, player);
}
void
demo_gui_set_playlist (DemoGui * gui, GList * uris)
{
g_return_if_fail (DEMO_IS_GUI (gui));
DEMO_GUI_GET_CLASS (gui)->set_playlist (gui, uris);
}
void
demo_gui_show (DemoGui * gui)
{
g_return_if_fail (DEMO_IS_GUI (gui));
DEMO_GUI_GET_CLASS (gui)->show (gui);
}
/* GObject overrides */
static void
demo_gui_get_property (GObject * object,
guint property_id, GValue * value, GParamSpec * pspec)
{
//DemoGui *gui = DEMO_GUI (object);
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
demo_gui_set_property (GObject * object,
guint property_id, const GValue * value, GParamSpec * pspec)
{
//DemoGui *gui = DEMO_GUI (object);
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
/* GTypeInfo functions */
static void
demo_gui_init (GTypeInstance * instance, gpointer klass)
{
DemoGui *gui = (DemoGui *) instance;
DemoGuiPrivate *priv = DEMO_GUI_GET_PRIVATE (gui);
priv->player = NULL;
priv->uris = NULL;
priv->now_playing = NULL;
priv->is_playing = FALSE;
priv->window = NULL;
priv->rate_entry = NULL;
priv->position_updater_id = 0;
priv->seek_range = NULL;
priv->amount_played = NULL;
priv->amount_to_play = NULL;
}
static void
demo_gui_class_init (gpointer klass, gpointer class_data)
{
DemoGuiClass *gui_class = (DemoGuiClass *) klass;
GObjectClass *as_object_class = G_OBJECT_CLASS (klass);
GType type;
g_type_class_add_private (klass, sizeof (DemoGuiPrivate));
/* DemiPlayer */
gui_class->set_player = demo_gui_set_player_func;
gui_class->set_playlist = demo_gui_set_playlist_func;
gui_class->show = demo_gui_show_func;
/* GObject */
as_object_class->get_property = demo_gui_get_property;
as_object_class->set_property = demo_gui_set_property;
/* Properties */
/* Signals */
type = G_TYPE_FROM_CLASS (klass);
demo_gui_signals[SIGNAL_ERROR] = g_signal_new ("error", type,
G_SIGNAL_RUN_FIRST, 0, NULL, NULL,
g_cclosure_marshal_VOID__STRING, G_TYPE_NONE, 1, G_TYPE_STRING);
demo_gui_signals[SIGNAL_QUITING] = g_signal_new ("quiting", type,
G_SIGNAL_RUN_FIRST, 0, NULL, NULL,
g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0, NULL);
}
GType
demo_gui_get_type (void)
{
static GType type = 0;
if (G_UNLIKELY (type == 0)) {
static const GTypeInfo info = {
sizeof /* Class */ (DemoGuiClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) demo_gui_class_init,
(GClassFinalizeFunc) NULL,
(gconstpointer) NULL, /* class_data */
sizeof /* Instance */ (DemoGui),
/* n_preallocs */ 0,
(GInstanceInitFunc) demo_gui_init,
(const GTypeValueTable *) NULL
};
type = g_type_register_static (G_TYPE_OBJECT, "DemoGui", &info, 0);
}
return type;
}
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