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#ifndef TREE_H_
# define TREE_H_
#include <stdint.h>
#include "common/region.h"
#include "common/ring.h"
#include "spice-bitmap-utils.h"
enum {
TREE_ITEM_TYPE_NONE,
TREE_ITEM_TYPE_DRAWABLE,
TREE_ITEM_TYPE_CONTAINER,
TREE_ITEM_TYPE_SHADOW,
TREE_ITEM_TYPE_LAST,
};
typedef struct _TreeItem TreeItem;
typedef struct _Shadow Shadow;
typedef struct _Container Container;
typedef struct _DrawItem DrawItem;
/* TODO consider GNode instead */
struct _TreeItem {
RingItem siblings_link;
uint32_t type;
Container *container;
QRegion rgn;
};
/* A region "below" a copy, or the src region of the copy */
struct _Shadow {
TreeItem base;
QRegion on_hold;
DrawItem* owner;
};
#define IS_SHADOW(item) ((item)->type == TREE_ITEM_TYPE_SHADOW)
#define SHADOW(item) ((Container*)(item))
struct _Container {
TreeItem base;
Ring items;
};
#define IS_CONTAINER(item) ((item)->type == TREE_ITEM_TYPE_CONTAINER)
#define CONTAINER(item) ((Container*)(item))
struct _DrawItem {
TreeItem base;
uint8_t effect;
uint8_t container_root;
Shadow *shadow;
};
#define IS_DRAW_ITEM(item) ((item)->type == TREE_ITEM_TYPE_DRAWABLE)
#define DRAW_ITEM(item) ((DrawItem*)(item))
static inline int is_opaque_item(TreeItem *item)
{
return item->type == TREE_ITEM_TYPE_CONTAINER ||
(IS_DRAW_ITEM(item) && ((DrawItem *)item)->effect == QXL_EFFECT_OPAQUE);
}
void tree_item_dump (TreeItem *item);
Shadow* tree_item_find_shadow (TreeItem *item);
int tree_item_contained_by (TreeItem *item, Ring *ring);
Ring* tree_item_container_items (TreeItem *item, Ring *ring);
void draw_item_remove_shadow (DrawItem *item);
Shadow* shadow_new (DrawItem *item, const SpicePoint *delta);
Container* container_new (DrawItem *item);
void container_free (Container *container);
void container_cleanup (Container *container);
#endif /* TREE_H_ */
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