struct _EvPresentationTimerPrivate
{
- guint page;
- guint pages;
+ gint time;
+ gint remaining;
+ guint page;
+ guint pages;
+ guint timeout;
+ gboolean running;
};
#define EV_PRESENTATION_TIMER_GET_PRIVATE(object) \
G_DEFINE_TYPE (EvPresentationTimer, ev_presentation_timer, GTK_TYPE_DRAWING_AREA);
+static gdouble
+ev_presentation_timer_progress (gdouble time, gdouble remaining)
+{
+ return remaining/(time*60);
+}
static gboolean
ev_presentation_timer_draw(GtkWidget *timer, cairo_t *cr)
{
- EvPresentationTimer *ev_timer = EV_PRESENTATION_TIMER(timer);
- GtkAllocation allocation;
- gtk_widget_get_allocation (timer, &allocation);
- //cairo_translate(cr,allocation.x,allocation.y);
- cairo_set_source_rgb (cr, 0, 0, 0);
- cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
- CAIRO_FONT_WEIGHT_NORMAL);
- cairo_set_font_size (cr, 40);
- guint pos = (allocation.width/ev_timer->priv->pages)*ev_timer->priv->page;
- cairo_move_to (cr, pos, 40);
- cairo_show_text (cr, "Disziplin ist Macht.");
-
-
+ EvPresentationTimer *ev_timer = EV_PRESENTATION_TIMER(timer);
+ GtkAllocation allocation;
+ gtk_widget_get_allocation (timer, &allocation);
+ cairo_set_source_rgb (cr, 0, 0, 0);
+ cairo_set_line_width (cr, 5);
+ guint pos = (allocation.width/ev_timer->priv->pages)*ev_timer->priv->page;
+ cairo_move_to (cr,pos,2);
+ cairo_line_to (cr,pos,allocation.height);
+ cairo_stroke (cr);
+ if(ev_timer->priv->running && ev_timer->priv->time > 0 && ev_timer->priv->remaining > 0)
+ {
+ gdouble progress = ev_presentation_timer_progress (ev_timer->priv->time,
+ ev_timer->priv->remaining)*(allocation.width);
+ cairo_rectangle (cr, allocation.width-progress,
+ 10,
+ (allocation.width-(allocation.width-progress))-10,
+ allocation.height-5);
+ cairo_stroke_preserve (cr);
+ cairo_fill(cr);
+ }
return FALSE;
}
+static gboolean
+timeout_cb (gpointer data)
+{
+ EvPresentationTimer *ev_timer = EV_PRESENTATION_TIMER(data);
+ ev_timer->priv->remaining--;
+
+ if(time >= 0 && ev_timer->priv->remaining >= 0)
+ {
+ gtk_widget_queue_draw(GTK_WIDGET(ev_timer));
+ } else
+ ev_timer->priv->running = FALSE;
+ return ev_timer->priv->running;
+}
+
void
ev_presentation_timer_set_pages (EvPresentationTimer *ev_timer, guint pages)
{
- ev_timer->priv->pages = pages;
+ if(!EV_IS_PRESENTATION_TIMER (ev_timer))
+ return;
+ ev_timer->priv->pages = pages -1;
}
void
ev_presentation_timer_set_page (EvPresentationTimer *ev_timer, guint page)
{
+ if(!EV_IS_PRESENTATION_TIMER (ev_timer))
+ return;
+ if (page >= ev_timer->priv->pages)
+ {
+ page = ev_timer->priv->pages;
+ ev_timer->priv->running=FALSE;
+ }
ev_timer->priv->page = page;
- gtk_widget_queue_draw(GTK_WIDGET(ev_timer));
+ gtk_widget_queue_draw(GTK_WIDGET(ev_timer));
}
static void
ev_timer->priv = EV_PRESENTATION_TIMER_GET_PRIVATE (ev_timer);
ev_timer->priv->page = 0;
ev_timer->priv->pages = 0;
+ ev_timer->priv->remaining = 0;
+ ev_timer->priv->time = 0;
+ ev_timer->priv->timeout = 0;
+ ev_timer->priv->running = FALSE;
+}
+
+void
+ev_presentation_timer_start (EvPresentationTimer *ev_timer)
+{
+ if (!EV_IS_PRESENTATION_TIMER (ev_timer))
+ return;
+ if (ev_timer->priv->running == FALSE)
+ {
+ ev_timer->priv->remaining = (ev_timer->priv->time)*60;
+ ev_timer->priv->running = TRUE;
+ ev_timer->priv->timeout = g_timeout_add_seconds (1, timeout_cb, ev_timer);
+ }
+}
+
+void
+ev_presentation_timer_stop (EvPresentationTimer *ev_timer)
+{
+ if (!EV_IS_PRESENTATION_TIMER (ev_timer))
+ return;
+ if (ev_timer->priv->timeout > 0)
+ g_source_remove (ev_timer->priv->timeout);
+ ev_timer->priv->remaining = 0;
+}
+
+void
+ev_presentation_timer_set_time (EvPresentationTimer *ev_timer,
+ gint time)
+{
+ if (!EV_IS_PRESENTATION_TIMER (ev_timer))
+ return;
+ if(ev_timer->priv->running)
+ ev_timer->priv->remaining = ((ev_timer->priv->remaining)/(ev_timer->priv->time)*time);
+ ev_timer->priv->time = (time < -1)? -1:time;
+}
+
+static void
+ev_presentation_timer_dispose (GObject *gobject)
+{
+ EvPresentationTimer *ev_timer = EV_PRESENTATION_TIMER (gobject);
+ EvPresentationTimerPrivate *priv = EV_PRESENTATION_TIMER (ev_timer)->priv;
+ if (priv->timeout > 0)
+ g_source_remove (priv->timeout);
+ G_OBJECT_CLASS (ev_presentation_timer_parent_class)->dispose (gobject);
}
static void
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
- //GtkDrawingAreaClass *drawing_area_class = GTK_DRAWING_AREA_CLASS (klass);
g_type_class_add_private (object_class, sizeof (EvPresentationTimerPrivate));
widget_class->draw = ev_presentation_timer_draw;
-
- /*object_class->finalize = ev_presentation_timer_finalize;*/
+ object_class->dispose = ev_presentation_timer_dispose;
}
GtkWidget *