From a753105c6aef682941344bc21a8f4a51e78a5440 Mon Sep 17 00:00:00 2001
From: Carlos Garnacho <carlosg@gnome.org>
Date: Fri, 04 Jan 2008 20:27:09 +0000
Subject: Implement "dissolve" effect.

2008-01-04  Carlos Garnacho  <carlosg@gnome.org>

        * shell/ev-transition-animation.c (ev_transition_animation_dissolve)
        (ev_transition_animation_paint): Implement "dissolve" effect.

svn path=/trunk/; revision=2805
---
(limited to 'shell/ev-transition-animation.c')

diff --git a/shell/ev-transition-animation.c b/shell/ev-transition-animation.c
index 028a36c..196d0e1 100644
--- a/shell/ev-transition-animation.c
+++ b/shell/ev-transition-animation.c
@@ -424,6 +424,21 @@ ev_transition_animation_wipe (cairo_t               *cr,
 	paint_surface (cr, priv->dest_surface, 0, 0, 0, page_area);
 }
 
+static void
+ev_transition_animation_dissolve (cairo_t               *cr,
+				  EvTransitionAnimation *animation,
+				  EvTransitionEffect    *effect,
+				  gdouble                progress,
+				  GdkRectangle           page_area)
+{
+	EvTransitionAnimationPriv *priv;
+
+	priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation);
+
+	paint_surface (cr, priv->dest_surface, 0, 0, 0, page_area);
+	paint_surface (cr, priv->origin_surface, 0, 0, 1 - progress, page_area);
+}
+
 void
 ev_transition_animation_paint (EvTransitionAnimation *animation,
 			       cairo_t               *cr,
@@ -462,6 +477,9 @@ ev_transition_animation_paint (EvTransitionAnimation *animation,
 	case EV_TRANSITION_EFFECT_WIPE:
 		ev_transition_animation_wipe (cr, animation, priv->effect, progress, page_area);
 		break;
+	case EV_TRANSITION_EFFECT_DISSOLVE:
+		ev_transition_animation_dissolve (cr, animation, priv->effect, progress, page_area);
+		break;
 	default: {
 		GEnumValue *enum_value;
 
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