shell/ev-presentation-timer.c

   1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
   2 /* this file is part of evince, a gnome document viewer
   3  *
   4  *
   5  *  Author:
   6  *    Lukas Bezdicka <255993@mail.muni.cz>
   7  *
   8  * Evince is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * Evince is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  21  */
  22
  23 #ifdef HAVE_CONFIG_H
  24 #include "config.h"
  25 #endif
  26
  27 #include <cairo.h>
  28 #include <glib/gi18n.h>
  29 #include <gtk/gtk.h>
  30 #include <math.h>
  31
  32 #include "ev-presentation-timer.h"
  33
  34 struct _EvPresentationTimerPrivate
  35 {
  36         guint page;
  37         guint pages;
  38 };
  39
  40 #define EV_PRESENTATION_TIMER_GET_PRIVATE(object) \
  41         (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_PRESENTATION_TIMER, EvPresentationTimerPrivate))
  42
  43 G_DEFINE_TYPE (EvPresentationTimer, ev_presentation_timer, GTK_TYPE_DRAWING_AREA);
  44
  45
  46 static gboolean
  47 ev_presentation_timer_draw(GtkWidget *timer, cairo_t *cr)
  48 {
  49   EvPresentationTimer *ev_timer = EV_PRESENTATION_TIMER(timer);
  50   GtkAllocation allocation;
  51   gtk_widget_get_allocation (timer, &allocation);
  52   //cairo_translate(cr,allocation.x,allocation.y);
  53   cairo_set_source_rgb (cr, 0, 0, 0);
  54   cairo_select_font_face (cr, "Sans", CAIRO_FONT_SLANT_NORMAL,
  55       CAIRO_FONT_WEIGHT_NORMAL);
  56   cairo_set_font_size (cr, 40);
  57   guint pos = (allocation.width/ev_timer->priv->pages)*ev_timer->priv->page;
  58   cairo_move_to (cr, pos, 40);
  59   cairo_show_text (cr, "Disziplin ist Macht.");
  60
  61
  62         return FALSE;
  63 }
  64
  65 void
  66 ev_presentation_timer_set_pages (EvPresentationTimer *ev_timer, guint pages)
  67 {
  68         ev_timer->priv->pages = pages;
  69 }
  70
  71 void
  72 ev_presentation_timer_set_page (EvPresentationTimer *ev_timer, guint page)
  73 {
  74         ev_timer->priv->page = page;
  75          gtk_widget_queue_draw(GTK_WIDGET(ev_timer));
  76 }
  77
  78 static void
  79 ev_presentation_timer_init (EvPresentationTimer *ev_timer)
  80 {
  81         ev_timer->priv = EV_PRESENTATION_TIMER_GET_PRIVATE (ev_timer);
  82         ev_timer->priv->page = 0;
  83         ev_timer->priv->pages = 0;
  84 }
  85
  86 static void
  87 ev_presentation_timer_class_init (EvPresentationTimerClass *klass)
  88 {
  89         GObjectClass    *object_class = G_OBJECT_CLASS (klass);
  90         GtkWidgetClass  *widget_class = GTK_WIDGET_CLASS (klass);
  91         //GtkDrawingAreaClass     *drawing_area_class = GTK_DRAWING_AREA_CLASS (klass);
  92         g_type_class_add_private (object_class, sizeof (EvPresentationTimerPrivate));
  93         widget_class->draw = ev_presentation_timer_draw;
  94
  95         /*object_class->finalize = ev_presentation_timer_finalize;*/
  96 }
  97
  98 GtkWidget *
  99 ev_presentation_timer_new (void)
 100 {
 101         EvPresentationTimer     *ev_timer;
 102
 103         ev_timer = g_object_new (EV_TYPE_PRESENTATION_TIMER, NULL);
 104         return GTK_WIDGET (ev_timer);
 105 }