Added. Returns whether the animation has everything necessary to run. Do

[evince.git] / shell / ev-transition-animation.c

diff --git a/shell/ev-transition-animation.c b/shell/ev-transition-animation.c
index 676552c9be734cfe59840d1d4885b4e3daf90bf8..148b4c7734eccaba3e576e1f1ec5ef060ce722e3 100644 (file)
--- a/shell/ev-transition-animation.c
+++ b/shell/ev-transition-animation.c
@@ -529,6 +529,21 @@ ev_transition_animation_uncover (cairo_t               *cr,
        }
 }
 
        }
 }
 

+static void
+ev_transition_animation_fade (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->origin_surface, 0, 0, 0, page_area);
+       paint_surface (cr, priv->dest_surface, 0, 0, progress, page_area);
+}
+

 void
 ev_transition_animation_paint (EvTransitionAnimation *animation,
                               cairo_t               *cr,
 void
 ev_transition_animation_paint (EvTransitionAnimation *animation,
                               cairo_t               *cr,


@@ -579,6 +594,9 @@ ev_transition_animation_paint (EvTransitionAnimation *animation,
        case EV_TRANSITION_EFFECT_UNCOVER:
                ev_transition_animation_uncover (cr, animation, priv->effect, progress, page_area);
                break;
        case EV_TRANSITION_EFFECT_UNCOVER:
                ev_transition_animation_uncover (cr, animation, priv->effect, progress, page_area);
                break;

+       case EV_TRANSITION_EFFECT_FADE:
+               ev_transition_animation_fade (cr, animation, priv->effect, progress, page_area);
+               break;

        default: {
                GEnumValue *enum_value;
 
        default: {
                GEnumValue *enum_value;
 


@@ -650,3 +668,15 @@ ev_transition_animation_set_dest_surface (EvTransitionAnimation *animation,
        if (priv->origin_surface && priv->dest_surface)
                ev_timeline_start (EV_TIMELINE (animation));
 }
        if (priv->origin_surface && priv->dest_surface)
                ev_timeline_start (EV_TIMELINE (animation));
 }

+
+gboolean
+ev_transition_animation_ready (EvTransitionAnimation *animation)
+{
+       EvTransitionAnimationPriv *priv;
+
+       g_return_val_if_fail (EV_IS_TRANSITION_ANIMATION (animation), FALSE);
+
+       priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation);
+
+       return (priv->origin_surface && priv->dest_surface);
+}