static gboolean
canvas_button_press( GtkWidget *widget, GdkEventButton *event, gpointer data )
{
playback_t *play = (playback_t *)data;
if( event->button == 1 ) {
play->frame_number++;
if( !renderframe(play->frame_number, play) )
play->frame_number--;
} else if ( event->button == 3 ) {
if( play->frame_number > 0 )
play->frame_number--;
renderframe( play->frame_number, play );
}
g_print("frame: %lld\n", play->frame_number);
gtk_widget_queue_draw_area( widget, 0, 0,
widget->allocation.width, widget->allocation.height);
return TRUE;
}
static gboolean
next_frame(gpointer data)
{
playback_t *play = (playback_t *)data;
GtkWidget *widget = play->canvas;
play->frame_number++;
if( !renderframe(play->frame_number, play) ) {
play->frame_number--;
return FALSE;
}
gtk_widget_queue_draw_area( widget, 0, 0,
widget->allocation.width, widget->allocation.height);
return TRUE;
}
static inline void drawframe(uint16_t framenumber)
{
loadpage(findpage(framenumber), &anim->thepage);
renderframe(framenumber, anim->thepage);
}
int main( int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *button;
GtkWidget *vbox;
playback_t play = { 0 };
/* Option parsing */
GError *error = NULL;
GOptionContext *context;
GOptionEntry entries[] =
{
{ "input-filename", 'i', 0, G_OPTION_ARG_FILENAME, &(play.filename), "Input filename", "FILE" },
{ NULL }
};
context = g_option_context_new("- Firefly MV Camera Playback");
g_option_context_set_summary(context,
"Replays successive frames previously recorded\n"
"using dc1394-record");
g_option_context_add_main_entries (context, entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error)) {
printf( "Error: %s\n%s",
error->message,
g_option_context_get_help(context, TRUE, NULL));
exit(1);
}
if (play.filename == NULL) {
printf( "Error: You must supply a filename\n%s",
g_option_context_get_help(context, TRUE, NULL));
exit(2);
}
if (play.filename[0] == '-') {
play.fp = stdin;
} else {
play.fp = fopen(play.filename, "rb");
}
if( play.fp == NULL ) {
perror("opening file");
exit(1);
}
// read the first frame
play.total_frame_size = read_frame(&play.frame, play.fp);
if (play.frame.color_coding == DC1394_COLOR_CODING_MONO8)
play.show = GRAY;
else if (play.frame.color_coding == DC1394_COLOR_CODING_RGB8)
play.show = COLOR;
else if (play.frame.color_coding == DC1394_COLOR_CODING_RAW8)
play.show = FORMAT7;
else {
perror("invalid color coding");
exit(1);
}
gtk_init( &argc, &argv );
gdk_rgb_init();
gtk_widget_set_default_colormap (gdk_rgb_get_cmap());
gtk_widget_set_default_visual (gdk_rgb_get_visual());
// create window
window = gtk_window_new( GTK_WINDOW_TOPLEVEL );
g_signal_connect( G_OBJECT(window), "delete_event", G_CALLBACK(delete_event), NULL );
g_signal_connect( G_OBJECT(window), "destroy", G_CALLBACK(delete_event), NULL );
gtk_container_set_border_width( GTK_CONTAINER(window), 10 );
// add widgets
// vbox (VBox)
vbox = gtk_vbox_new(FALSE, 10);
gtk_container_add( GTK_CONTAINER(window), vbox );
// canvas (DrawingArea)
play.canvas = gtk_drawing_area_new();
gtk_widget_set_size_request(play.canvas, play.frame.size[0], play.frame.size[1]);
g_signal_connect (G_OBJECT (play.canvas), "expose_event",
G_CALLBACK (expose_event_callback), &play);
gtk_widget_set_events(play.canvas, GDK_LEAVE_NOTIFY_MASK
| GDK_BUTTON_PRESS_MASK
| GDK_BUTTON_RELEASE_MASK
| GDK_POINTER_MOTION_MASK );
g_signal_connect( G_OBJECT(play.canvas), "button_press_event",
G_CALLBACK(canvas_button_press), &play);
gtk_box_pack_start(GTK_BOX(vbox), play.canvas, TRUE, TRUE, 0);
// quit button
button = gtk_button_new_with_label( "Quit" );
g_signal_connect_swapped( G_OBJECT(button), "clicked",
G_CALLBACK(gtk_widget_destroy),
G_OBJECT(window) );
gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, TRUE, 0);
// play button
button = gtk_button_new_with_label( "Play" );
g_signal_connect (G_OBJECT (button), "clicked",
G_CALLBACK (on_play_clicked_event), (gpointer) &play);
gtk_box_pack_start(GTK_BOX(vbox), button, FALSE, TRUE, 0);
// display everything
gtk_widget_show_all( window );
// render the first frame
renderframe(0, &play);
// go
gtk_main();
fclose(play.fp);
return 0;
}
void drawframe (uint16 framenumber)
{
CheckAnimStarted ( "drawframe" );
loadpage(findpage(framenumber), anim->thepage);
renderframe(framenumber, anim->thepage);
}
