Learning_GTK4_tree/demos/gtk-demo/video_player.c

202 lines
6.7 KiB
C
Raw Normal View History

2023-12-12 11:36:42 +01:00
/* Video Player
* #Keywords: GtkVideo, GtkMediaStream, GtkMediaFile, GdkPaintable
* #Keywords: GtkMediaControls
*
* This is a simple video player using just GTK widgets.
*/
#include <gtk/gtk.h>
static GtkWidget *window = NULL;
static void
open_dialog_response_cb (GObject *source,
GAsyncResult *result,
void *user_data)
{
GtkFileDialog *dialog = GTK_FILE_DIALOG (source);
GtkWidget *video = user_data;
GFile *file;
file = gtk_file_dialog_open_finish (dialog, result, NULL);
if (file)
{
gtk_video_set_file (GTK_VIDEO (video), file);
g_object_unref (file);
}
}
static void
open_clicked_cb (GtkWidget *button,
GtkWidget *video)
{
GtkFileDialog *dialog;
GtkFileFilter *filter;
GListStore *filters;
dialog = gtk_file_dialog_new ();
gtk_file_dialog_set_title (dialog, "Select a video");
filters = g_list_store_new (GTK_TYPE_FILE_FILTER);
filter = gtk_file_filter_new ();
gtk_file_filter_add_pattern (filter, "*");
gtk_file_filter_set_name (filter, "All Files");
g_list_store_append (filters, filter);
g_object_unref (filter);
filter = gtk_file_filter_new ();
gtk_file_filter_add_mime_type (filter, "image/*");
gtk_file_filter_set_name (filter, "Images");
g_list_store_append (filters, filter);
g_object_unref (filter);
filter = gtk_file_filter_new ();
gtk_file_filter_add_mime_type (filter, "video/*");
gtk_file_filter_set_name (filter, "Video");
g_list_store_append (filters, filter);
gtk_file_dialog_set_default_filter (dialog, filter);
g_object_unref (filter);
gtk_file_dialog_set_filters (dialog, G_LIST_MODEL (filters));
g_object_unref (filters);
gtk_file_dialog_open (dialog,
GTK_WINDOW (gtk_widget_get_root (button)),
NULL,
open_dialog_response_cb, video);
}
static void
logo_clicked_cb (GtkWidget *button,
gpointer video)
{
GFile *file;
file = g_file_new_for_uri ("resource:///images/gtk-logo.webm");
gtk_video_set_file (GTK_VIDEO (video), file);
g_object_unref (file);
}
static void
bbb_clicked_cb (GtkWidget *button,
gpointer video)
{
GFile *file;
file = g_file_new_for_uri ("https://download.blender.org/peach/trailer/trailer_400p.ogg");
gtk_video_set_file (GTK_VIDEO (video), file);
g_object_unref (file);
}
static void
fullscreen_clicked_cb (GtkWidget *button,
gpointer unused)
{
GtkWidget *widget_window = GTK_WIDGET (gtk_widget_get_root (button));
gtk_window_fullscreen (GTK_WINDOW (widget_window));
}
static gboolean
toggle_fullscreen (GtkWidget *widget,
GVariant *args,
gpointer data)
{
GdkSurface *surface;
GdkToplevelState state;
surface = gtk_native_get_surface (GTK_NATIVE (widget));
state = gdk_toplevel_get_state (GDK_TOPLEVEL (surface));
if (state & GDK_TOPLEVEL_STATE_FULLSCREEN)
gtk_window_unfullscreen (GTK_WINDOW (widget));
else
gtk_window_fullscreen (GTK_WINDOW (widget));
return TRUE;
}
GtkWidget *
do_video_player (GtkWidget *do_widget)
{
GtkWidget *title;
GtkWidget *video;
GtkWidget *button;
GtkWidget *image;
GtkWidget *fullscreen_button;
GtkEventController *controller;
if (!window)
{
window = gtk_window_new ();
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Video Player");
gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
video = gtk_video_new ();
gtk_video_set_autoplay (GTK_VIDEO (video), TRUE);
gtk_video_set_graphics_offload (GTK_VIDEO (video), GTK_GRAPHICS_OFFLOAD_ENABLED);
gtk_window_set_child (GTK_WINDOW (window), video);
title = gtk_header_bar_new ();
gtk_window_set_titlebar (GTK_WINDOW (window), title);
button = gtk_button_new_with_mnemonic ("_Open");
g_signal_connect (button, "clicked", G_CALLBACK (open_clicked_cb), video);
gtk_header_bar_pack_start (GTK_HEADER_BAR (title), button);
button = gtk_button_new ();
image = gtk_image_new_from_resource ("/cursors/images/gtk_logo_cursor.png");
gtk_accessible_update_relation (GTK_ACCESSIBLE (image),
GTK_ACCESSIBLE_RELATION_LABELLED_BY, button, NULL,
-1);
gtk_image_set_pixel_size (GTK_IMAGE (image), 24);
gtk_button_set_child (GTK_BUTTON (button), image);
g_signal_connect (button, "clicked", G_CALLBACK (logo_clicked_cb), video);
gtk_accessible_update_property (GTK_ACCESSIBLE (button),
GTK_ACCESSIBLE_PROPERTY_LABEL, "GTK Logo",
-1);
gtk_header_bar_pack_start (GTK_HEADER_BAR (title), button);
button = gtk_button_new ();
image = gtk_image_new_from_resource ("/video-player/bbb.png");
gtk_accessible_update_relation (GTK_ACCESSIBLE (image),
GTK_ACCESSIBLE_RELATION_LABELLED_BY, button, NULL,
-1);
gtk_image_set_pixel_size (GTK_IMAGE (image), 24);
gtk_button_set_child (GTK_BUTTON (button), image);
g_signal_connect (button, "clicked", G_CALLBACK (bbb_clicked_cb), video);
gtk_accessible_update_property (GTK_ACCESSIBLE (button),
GTK_ACCESSIBLE_PROPERTY_LABEL, "Big Buck Bunny",
-1);
gtk_header_bar_pack_start (GTK_HEADER_BAR (title), button);
fullscreen_button = gtk_button_new_from_icon_name ("view-fullscreen-symbolic");
g_signal_connect (fullscreen_button, "clicked", G_CALLBACK (fullscreen_clicked_cb), NULL);
gtk_accessible_update_property (GTK_ACCESSIBLE (fullscreen_button),
GTK_ACCESSIBLE_PROPERTY_LABEL, "Fullscreen",
-1);
gtk_header_bar_pack_end (GTK_HEADER_BAR (title), fullscreen_button);
controller = gtk_shortcut_controller_new ();
gtk_shortcut_controller_set_scope (GTK_SHORTCUT_CONTROLLER (controller),
GTK_SHORTCUT_SCOPE_GLOBAL);
gtk_widget_add_controller (window, controller);
gtk_shortcut_controller_add_shortcut (GTK_SHORTCUT_CONTROLLER (controller),
gtk_shortcut_new (gtk_keyval_trigger_new (GDK_KEY_F11, 0),
gtk_callback_action_new (toggle_fullscreen, NULL, NULL)));
}
if (!gtk_widget_get_visible (window))
gtk_widget_set_visible (window, TRUE);
else
gtk_window_destroy (GTK_WINDOW (window));
return window;
}