forked from AuroraMiddleware/gtk
56c93a7661
The child-transform is useful only if we also provide clipping to the parent nodes, otherwise children will just be drawn outside of the parent's bounds. We'll introduce child transforms either at a higher layer, or once we add clipping support to GskRenderNode.
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
#ifndef __GSK_RENDER_NODE_PRIVATE_H__
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#define __GSK_RENDER_NODE_PRIVATE_H__
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#include "gskrendernode.h"
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#include "gskrenderer.h"
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#include <cairo.h>
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G_BEGIN_DECLS
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#define GSK_RENDER_NODE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GSK_TYPE_RENDER_NODE, GskRenderNodeClass))
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#define GSK_IS_RENDER_NODE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GSK_TYPE_RENDER_NODE))
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#define GSK_RENDER_NODE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GSK_TYPE_RENDER_NODE, GskRenderNodeClass))
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struct _GskRenderNode
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{
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GTypeInstance parent_instance;
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volatile int ref_count;
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/* Back pointer to the renderer that created the node */
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GskRenderer *renderer;
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/* The graph */
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GskRenderNode *parent;
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GskRenderNode *first_child;
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GskRenderNode *last_child;
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GskRenderNode *prev_sibling;
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GskRenderNode *next_sibling;
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int n_children;
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/* Use for debugging */
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char *name;
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/* Tag updated when adding/removing children */
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gint64 age;
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/* The contents of the node */
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cairo_surface_t *surface;
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/* Paint opacity */
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double opacity;
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/* Blend mode */
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GskBlendMode blend_mode;
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/* Clip rectangle */
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graphene_rect_t bounds;
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/* Transformations relative to the root of the scene */
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graphene_matrix_t world_matrix;
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/* Transformations applied to the node */
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graphene_matrix_t transform;
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graphene_point3d_t anchor_point;
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/* Bit fields; leave at the end */
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gboolean is_mutable : 1;
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gboolean hidden : 1;
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gboolean opaque : 1;
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gboolean transform_set : 1;
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gboolean needs_world_matrix_update : 1;
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};
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struct _GskRenderNodeClass
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{
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GTypeClass parent_class;
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void (* finalize) (GskRenderNode *node);
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};
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GskRenderNode *gsk_render_node_new (GskRenderer *renderer);
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void gsk_render_node_make_immutable (GskRenderNode *node);
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void gsk_render_node_get_bounds (GskRenderNode *node,
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graphene_rect_t *frame);
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void gsk_render_node_get_transform (GskRenderNode *node,
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graphene_matrix_t *mv);
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double gsk_render_node_get_opacity (GskRenderNode *node);
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cairo_surface_t *gsk_render_node_get_surface (GskRenderNode *node);
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GskRenderNode *gsk_render_node_get_toplevel (GskRenderNode *node);
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void gsk_render_node_update_world_matrix (GskRenderNode *node,
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gboolean force);
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void gsk_render_node_get_world_matrix (GskRenderNode *node,
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graphene_matrix_t *mv);
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int gsk_render_node_get_size (GskRenderNode *root);
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G_END_DECLS
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#endif /* __GSK_RENDER_NODE_PRIVATE_H__ */
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