--- /dev/null
+/* ev-transition-animation.c
+ * this file is part of evince, a gnome document viewer
+ *
+ * Copyright (C) 2007 Carlos Garnacho <carlos@imendio.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <cairo.h>
+#include <gdk/gdk.h>
+#include "ev-transition-animation.h"
+#include "ev-timeline.h"
+
+#define EV_TRANSITION_ANIMATION_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), EV_TYPE_TRANSITION_ANIMATION, EvTransitionAnimationPriv))
+#define N_BLINDS 6
+
+typedef struct EvTransitionAnimationPriv EvTransitionAnimationPriv;
+
+struct EvTransitionAnimationPriv {
+ EvTransitionEffect *effect;
+ cairo_surface_t *origin_surface;
+ cairo_surface_t *dest_surface;
+};
+
+enum {
+ PROP_0,
+ PROP_EFFECT,
+ PROP_ORIGIN_SURFACE,
+ PROP_DEST_SURFACE
+};
+
+
+G_DEFINE_TYPE (EvTransitionAnimation, ev_transition_animation, EV_TYPE_TIMELINE)
+
+
+static void
+ev_transition_animation_init (EvTransitionAnimation *animation)
+{
+}
+
+static void
+ev_transition_animation_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ EvTransitionAnimationPriv *priv;
+
+ priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (object);
+
+ switch (prop_id) {
+ case PROP_EFFECT:
+ if (priv->effect)
+ g_object_unref (priv->effect);
+
+ priv->effect = g_value_dup_object (value);
+ break;
+ case PROP_ORIGIN_SURFACE:
+ ev_transition_animation_set_origin_surface (EV_TRANSITION_ANIMATION (object),
+ g_value_get_pointer (value));
+ break;
+ case PROP_DEST_SURFACE:
+ ev_transition_animation_set_dest_surface (EV_TRANSITION_ANIMATION (object),
+ g_value_get_pointer (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ }
+}
+
+static void
+ev_transition_animation_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ EvTransitionAnimationPriv *priv;
+
+ priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (object);
+
+ switch (prop_id) {
+ case PROP_EFFECT:
+ g_value_set_object (value, priv->effect);
+ break;
+ case PROP_ORIGIN_SURFACE:
+ g_value_set_pointer (value, priv->origin_surface);
+ break;
+ case PROP_DEST_SURFACE:
+ g_value_set_pointer (value, priv->dest_surface);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ }
+}
+
+static void
+ev_transition_animation_finalize (GObject *object)
+{
+ EvTransitionAnimationPriv *priv;
+
+ priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (object);
+
+ if (priv->effect)
+ g_object_unref (priv->effect);
+
+ if (priv->origin_surface)
+ cairo_surface_destroy (priv->origin_surface);
+
+ if (priv->dest_surface)
+ cairo_surface_destroy (priv->dest_surface);
+
+ G_OBJECT_CLASS (ev_transition_animation_parent_class)->finalize (object);
+}
+
+static GObject *
+ev_transition_animation_constructor (GType type,
+ guint n_construct_properties,
+ GObjectConstructParam *construct_params)
+{
+ GObject *object;
+ EvTransitionAnimationPriv *priv;
+ EvTransitionEffect *effect;
+ gint duration;
+
+ object = G_OBJECT_CLASS (ev_transition_animation_parent_class)->constructor (type,
+ n_construct_properties,
+ construct_params);
+
+ priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (object);
+ effect = priv->effect;
+
+ g_object_get (effect, "duration", &duration, NULL);
+ ev_timeline_set_duration (EV_TIMELINE (object), duration * 1000);
+
+ return object;
+}
+
+static void
+ev_transition_animation_class_init (EvTransitionAnimationClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->set_property = ev_transition_animation_set_property;
+ object_class->get_property = ev_transition_animation_get_property;
+ object_class->finalize = ev_transition_animation_finalize;
+ object_class->constructor = ev_transition_animation_constructor;
+
+ g_object_class_install_property (object_class,
+ PROP_EFFECT,
+ g_param_spec_object ("effect",
+ "Effect",
+ "Transition effect description",
+ EV_TYPE_TRANSITION_EFFECT,
+ G_PARAM_CONSTRUCT_ONLY | G_PARAM_READWRITE));
+ g_object_class_install_property (object_class,
+ PROP_ORIGIN_SURFACE,
+ g_param_spec_pointer ("origin-surface",
+ "Origin surface",
+ "Cairo surface from which the animation will happen",
+ G_PARAM_READWRITE));
+ g_object_class_install_property (object_class,
+ PROP_DEST_SURFACE,
+ g_param_spec_pointer ("dest-surface",
+ "Destination surface",
+ "Cairo surface to which the animation will happen",
+ G_PARAM_READWRITE));
+
+ g_type_class_add_private (klass, sizeof (EvTransitionAnimationPriv));
+}
+
+static void
+paint_surface (cairo_t *cr,
+ cairo_surface_t *surface,
+ gdouble x_offset,
+ gdouble y_offset,
+ gdouble alpha,
+ GdkRectangle page_area)
+{
+ gint width, height;
+
+ gdk_cairo_rectangle (cr, &page_area);
+ cairo_clip (cr);
+
+ width = cairo_image_surface_get_width (surface);
+ height = cairo_image_surface_get_height (surface);
+
+ cairo_save (cr);
+
+ if (width != page_area.width || height != page_area.height) {
+ cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_FAST);
+ cairo_scale (cr,
+ (gdouble) page_area.width / width,
+ (gdouble) page_area.height / height);
+ }
+
+ cairo_surface_set_device_offset (surface, x_offset, y_offset);
+ cairo_set_source_surface (cr, surface, 0, 0);
+
+ if (alpha == 0.)
+ cairo_paint (cr);
+ else
+ cairo_paint_with_alpha (cr, alpha);
+
+ cairo_restore (cr);
+}
+
+void
+ev_transition_animation_paint (EvTransitionAnimation *animation,
+ cairo_t *cr,
+ GdkRectangle page_area)
+{
+ EvTransitionAnimationPriv *priv;
+ EvTransitionEffectType type;
+ gdouble progress;
+
+ g_return_if_fail (EV_IS_TRANSITION_ANIMATION (animation));
+
+ priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation);
+ g_object_get (priv->effect, "type", &type, NULL);
+ progress = ev_timeline_get_progress (EV_TIMELINE (animation));
+
+ if (!priv->dest_surface) {
+ /* animation is still not ready, paint the origin surface */
+ paint_surface (cr, priv->origin_surface, 0, 0, 0, page_area);
+ return;
+ }
+
+ switch (type) {
+ case EV_TRANSITION_EFFECT_REPLACE:
+ /* just paint the destination slide */
+ paint_surface (cr, priv->dest_surface, 0, 0, 0, page_area);
+ break;
+ default: {
+ GEnumValue *enum_value;
+
+ enum_value = g_enum_get_value (g_type_class_peek (EV_TYPE_TRANSITION_EFFECT_TYPE), type);
+
+ g_warning ("Unimplemented transition animation: '%s', "
+ "please post a bug report in Evince bugzilla "
+ "(http://bugzilla.gnome.org) with a testcase.",
+ enum_value->value_nick);
+
+ /* just paint the destination slide */
+ paint_surface (cr, priv->dest_surface, 0, 0, 0, page_area);
+ }
+ }
+}
+
+EvTransitionAnimation *
+ev_transition_animation_new (EvTransitionEffect *effect)
+{
+ g_return_val_if_fail (EV_IS_TRANSITION_EFFECT (effect), NULL);
+
+ return g_object_new (EV_TYPE_TRANSITION_ANIMATION,
+ "effect", effect,
+ NULL);
+}
+
+void
+ev_transition_animation_set_origin_surface (EvTransitionAnimation *animation,
+ cairo_surface_t *origin_surface)
+{
+ EvTransitionAnimationPriv *priv;
+ cairo_surface_t *surface;
+
+ g_return_if_fail (EV_IS_TRANSITION_ANIMATION (animation));
+
+ priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation);
+
+ surface = cairo_surface_reference (origin_surface);
+
+ if (priv->origin_surface)
+ cairo_surface_destroy (priv->origin_surface);
+
+ priv->origin_surface = surface;
+ g_object_notify (G_OBJECT (animation), "origin-surface");
+
+ if (priv->origin_surface && priv->dest_surface)
+ ev_timeline_start (EV_TIMELINE (animation));
+}
+
+void
+ev_transition_animation_set_dest_surface (EvTransitionAnimation *animation,
+ cairo_surface_t *dest_surface)
+{
+ EvTransitionAnimationPriv *priv;
+ cairo_surface_t *surface;
+
+ g_return_if_fail (EV_IS_TRANSITION_ANIMATION (animation));
+
+ priv = EV_TRANSITION_ANIMATION_GET_PRIVATE (animation);
+
+ surface = cairo_surface_reference (dest_surface);
+
+ if (priv->dest_surface)
+ cairo_surface_destroy (priv->dest_surface);
+
+ priv->dest_surface = surface;
+ g_object_notify (G_OBJECT (animation), "dest-surface");
+
+ if (priv->origin_surface && priv->dest_surface)
+ ev_timeline_start (EV_TIMELINE (animation));
+}
--- /dev/null
+/* ev-transition-animation.h
+ * this file is part of evince, a gnome document viewer
+ *
+ * Copyright (C) 2007 Carlos Garnacho <carlos@imendio.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __EV_TRANSITION_ANIMATION_H__
+#define __EV_TRANSITION_ANIMATION_H__
+
+#include "ev-timeline.h"
+#include "ev-transition-effect.h"
+
+G_BEGIN_DECLS
+
+#define EV_TYPE_TRANSITION_ANIMATION (ev_transition_animation_get_type ())
+#define EV_TRANSITION_ANIMATION(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_TRANSITION_ANIMATION, EvTransitionAnimation))
+#define EV_TRANSITION_ANIMATION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), EV_TYPE_TRANSITION_ANIMATION, EvTransitionAnimationClass))
+#define EV_IS_TRANSITION_ANIMATION(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_TRANSITION_ANIMATION))
+#define EV_IS_TRANSITION_ANIMATION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), EV_TYPE_TRANSITION_ANIMATION))
+#define EV_TRANSITION_ANIMATION_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), EV_TYPE_TRANSITION_ANIMATION, EvTransitionAnimationClass))
+
+typedef struct EvTransitionAnimation EvTransitionAnimation;
+typedef struct EvTransitionAnimationClass EvTransitionAnimationClass;
+
+struct EvTransitionAnimation {
+ EvTimeline parent_instance;
+};
+
+struct EvTransitionAnimationClass {
+ EvTimelineClass parent_class;
+};
+
+
+GType ev_transition_animation_get_type (void) G_GNUC_CONST;
+
+EvTransitionAnimation * ev_transition_animation_new (EvTransitionEffect *effect);
+
+void ev_transition_animation_set_origin_surface (EvTransitionAnimation *animation,
+ cairo_surface_t *origin_surface);
+void ev_transition_animation_set_dest_surface (EvTransitionAnimation *animation,
+ cairo_surface_t *origin_surface);
+gint ev_transition_animation_get_page_from (EvTransitionAnimation *animation);
+gint ev_transition_animation_get_page_to (EvTransitionAnimation *animation);
+
+void ev_transition_animation_paint (EvTransitionAnimation *animation,
+ cairo_t *cr,
+ GdkRectangle page_area);
+
+G_END_DECLS
+
+#endif /* __EV_TRANSITION_ANIMATION_H__ */
https://www.fi.muni.cz/~kas/git / evince.git / commitdiff