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Viewing changes to transitions/bar_wipe.c

  • Committer: Bazaar Package Importer
  • Author(s): Alessio Treglia
  • Date: 2009-11-06 14:29:06 UTC
  • mfrom: (2.1.3 sid)
  • Revision ID: james.westby@ubuntu.com-20091106142906-4g7wf3el6p5v9son
Tags: 2.0-1ubuntu1
* Merge from debian testing, Ubuntu remaining changes:
  - Move *-extra-* packages from Suggests to Recommends, as upstream's per
    request.

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Lines of Context:
transitions/bar_wipe.c
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 *
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 */
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#include "export_to_ppm.h"
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#include <gdk/gdk.h>
 
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#include <cairo.h>
 
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#include <glib.h>
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/* Local functions declarations */
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static void
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transition_render( GdkDrawable *window,
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                                   GdkPixbuf   *image_from,
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                                   GdkPixbuf   *image_to,
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                                   gdouble      progress,
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                                   gint         file_desc,
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                                   gint         direction );
 
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transition_render( cairo_t         *cr,
 
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                                   cairo_surface_t *image_from,
 
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                                   cairo_surface_t *image_to,
 
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                                   gdouble          progress,
 
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                                   gint             direction );
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/* Plug-in API */
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void
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}
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void
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img_left( GdkDrawable *window,
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                  GdkPixbuf   *image_from, 
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                  GdkPixbuf   *image_to,
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                  gdouble      progress,
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                  gint         file_desc )
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{
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        transition_render( window, image_from, image_to, progress, file_desc, 1 );
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}
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void
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img_top( GdkDrawable *window,
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                 GdkPixbuf   *image_from, 
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                 GdkPixbuf   *image_to,
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                 gdouble      progress,
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                 gint         file_desc )
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{
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        transition_render( window, image_from, image_to, progress, file_desc, 2 );
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}
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void
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img_right( GdkDrawable *window,
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                   GdkPixbuf   *image_from, 
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                   GdkPixbuf   *image_to,
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                   gdouble      progress,
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                   gint         file_desc )
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{
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        transition_render( window, image_from, image_to, progress, file_desc, 3 );
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}
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void
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img_bottom( GdkDrawable *window,
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                        GdkPixbuf   *image_from, 
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                        GdkPixbuf   *image_to,
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                        gdouble      progress,
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                        gint         file_desc )
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{
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        transition_render( window, image_from, image_to, progress, file_desc, 4 );
 
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img_left( cairo_t         *cr,
 
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                  cairo_surface_t *image_from,
 
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                  cairo_surface_t *image_to,
 
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                  gdouble          progress )
 
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{
 
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        transition_render( cr, image_from, image_to, progress, 1 );
 
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}
 
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void
 
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img_top( cairo_t         *cr,
 
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                 cairo_surface_t *image_from,
 
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                 cairo_surface_t *image_to,
 
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                 gdouble          progress )
 
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{
 
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        transition_render( cr, image_from, image_to, progress, 2 );
 
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}
 
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void
 
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img_right( cairo_t         *cr,
 
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                   cairo_surface_t *image_from,
 
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                   cairo_surface_t *image_to,
 
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                   gdouble          progress )
 
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{
 
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        transition_render( cr, image_from, image_to, progress, 3 );
 
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}
 
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void
 
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img_bottom( cairo_t         *cr,
 
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                        cairo_surface_t *image_from,
 
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                        cairo_surface_t *image_to,
 
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                        gdouble          progress )
 
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{
 
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        transition_render( cr, image_from, image_to, progress, 4 );
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}
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/* Local functions definitions */
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static void
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transition_render( GdkDrawable *window,
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                                   GdkPixbuf   *image_from,
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                                   GdkPixbuf   *image_to,
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                                   gdouble      progress,
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                                   gint         file_desc,
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                                   gint         direction )
 
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transition_render( cairo_t         *cr,
 
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                                   cairo_surface_t *image_from,
 
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                                   cairo_surface_t *image_to,
 
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                                   gdouble          progress,
 
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                                   gint             direction )
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{
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        cairo_t         *cr;
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        cairo_surface_t *surface;
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        gint             width, height;
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        gdk_drawable_get_size( window, &width, &height );
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        if( file_desc < 0 )
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        {
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                cr = gdk_cairo_create( window );
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        }
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        else
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        {
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                surface = cairo_image_surface_create( CAIRO_FORMAT_RGB24,
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                                                                                          width, height );
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                cr = cairo_create( surface );
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        }
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        gdk_cairo_set_source_pixbuf( cr, image_from, 0, 0 );
 
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        gint width, height;
 
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        width  = cairo_image_surface_get_width( image_from );
 
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        height = cairo_image_surface_get_height( image_from );
 
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        cairo_set_source_surface( cr, image_from, 0, 0 );
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        cairo_paint( cr );
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        gdk_cairo_set_source_pixbuf( cr, image_to, 0, 0 );
 
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        cairo_set_source_surface( cr, image_to, 0, 0 );
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        switch( direction )
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        {
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                        cairo_rectangle( cr, 0, height * ( 1 - progress ), width, height );
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                        break;
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        }
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        cairo_clip(cr);
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        cairo_paint(cr);
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        cairo_destroy(cr);
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        if(file_desc < 0)
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                return;
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        img_export_cairo_to_ppm(surface, file_desc);
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        cairo_surface_destroy(surface);
 
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        cairo_fill( cr );
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}