static void
cb_compose_images_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
const int width = gtk_widget_get_width (widget);
const int height = gtk_widget_get_height (widget);
/* This is only relevant when an image gets transitioned to being deleted,
* but we just always push a clip node here, for simplicity. */
gtk_snapshot_push_clip (snapshot,
&GRAPHENE_RECT_INIT (0, 0, width, height),
"ComposeImagesClip");
GTK_WIDGET_CLASS (cb_compose_images_parent_class)->snapshot (widget, snapshot);
gtk_snapshot_pop (snapshot);
}
/* This is the function that draws the puzzle piece.
* It just draws a rectangular cutout of the puzzle by clipping
* away the rest.
*/
static void
gtk_puzzle_piece_snapshot (GdkPaintable *paintable,
GdkSnapshot *snapshot,
double width,
double height)
{
GtkPuzzlePiece *self = GTK_PUZZLE_PIECE (paintable);
gtk_snapshot_push_clip (snapshot,
&GRAPHENE_RECT_INIT (0, 0, width, height));
gtk_snapshot_offset (snapshot,
- width * self->x,
- height * self->y);
gdk_paintable_snapshot (self->puzzle,
snapshot,
width * self->width,
height * self->height);
gtk_snapshot_pop (snapshot);
}
static void
gtk_render_node_paintable_paintable_snapshot (GdkPaintable *paintable,
GdkSnapshot *snapshot,
double width,
double height)
{
GtkRenderNodePaintable *self = GTK_RENDER_NODE_PAINTABLE (paintable);
gboolean needs_transform;
needs_transform = self->bounds.size.width != width ||
self->bounds.size.height != height;
if (needs_transform)
{
graphene_matrix_t transform;
graphene_matrix_init_scale (&transform,
width / (self->bounds.size.width),
height / (self->bounds.size.height),
1.0);
gtk_snapshot_push_transform (snapshot,
&transform);
}
gtk_snapshot_offset (snapshot, -self->bounds.origin.x, -self->bounds.origin.y);
gtk_snapshot_push_clip (snapshot, &self->bounds);
gtk_snapshot_append_node (snapshot, self->node);
//gtk_snapshot_append_color (snapshot, &(GdkRGBA) { 1, 0, 0, 1 }, &self->bounds);
gtk_snapshot_pop (snapshot);
gtk_snapshot_offset (snapshot, self->bounds.origin.x, self->bounds.origin.y);
if (needs_transform)
gtk_snapshot_pop (snapshot);
}
