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#ifndef CANVAS_H_HEADER
#define CANVAS_H_HEADER
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(DEBUG_ALLOCS) && defined(DEBUG_TRACE)
#define TRACE_update_canvas_display
#define TRACE_render_astbar
#endif
/* define that if you want all geometry being updated just before setting shape*/
#undef STRICT_GEOMETRY
struct MyStyle ;
struct ASImage;
struct icon_t;
struct button_t;
struct ASImageManager;
struct ASBalloon;
struct ASVector;
struct ASGrid;
typedef struct ASCanvas
{
#define CANVAS_DIRTY (0x01<<0)
#define CANVAS_OUT_OF_SYNC (0x01<<1)
#define CANVAS_MASK_OUT_OF_SYNC (0x01<<2)
#define CANVAS_CONFIG_INVALID (0x01<<3)
#define CANVAS_MAPPED (0x01<<4)
/* these are not really a states but rather flags : */
#define CANVAS_CONTAINER (0x01<<16) /* user drawn - should not maintain our canvas Pixmap,
* also should monitor chnages in user defined shape,
* and update mask pixmap accordingly */
#define CANVAS_FORCE_MASK (0x01<<18) /* forces rendering of the canvas mask even if MyStyle is not shaped */
#define CANVAS_SHAPE_SET (0x01<<19) /* */
#define IsCanvasShaped(pc) get_flags((pc)->state,CANVAS_SHAPE_SET)
ASFlagType state ;
Window w;
int root_x, root_y;
unsigned short width, height ;
unsigned int bw ;
Pixmap saved_canvas ;
struct ASVector *saved_shape ;
/* these two are shortcuts to above values */
Pixmap canvas;
struct ASVector *shape; /* vector of XRectangles */
/* 32 bytes */
}ASCanvas;
/* synonim for backporting of parts of as-devel */
#define ASWidget ASCanvas
#define AS_WIDGET_SCREEN(c) (ASDefaultScr)
#define AS_WIDGET_WINDOW(c) ((c)?(c)->w:None)
#define AS_WIDGET_X(c) ((c)?(int)(c)->root_x:0)
#define AS_WIDGET_Y(c) ((c)?(int)(c)->root_y:0)
#define AS_WIDGET_WIDTH(c) ((c)?(int)(c)->width:0)
#define AS_WIDGET_HEIGHT(c) ((c)?(int)(c)->height:0)
#define AS_WIDGET_BW(c) ((c)?(int)(c)->bw:0)
#define AS_WIDGET_FEEL(c) (&(ASDefaultScr->Feel))
#define AS_WIDGET_LOOK(c) (&(ASDefaultScr->Look))
ASCanvas* create_ascanvas(Window w);
ASCanvas* create_ascanvas_container (Window w);
void destroy_ascanvas( ASCanvas **pcanvas );
#define CANVAS_X_CHANGED (0x01<<0)
#define CANVAS_Y_CHANGED (0x01<<1)
#define CANVAS_MOVED (CANVAS_X_CHANGED|CANVAS_Y_CHANGED)
#define CANVAS_WIDTH_CHANGED (0x01<<2)
#define CANVAS_HEIGHT_CHANGED (0x01<<3)
#define CANVAS_RESIZED (CANVAS_WIDTH_CHANGED|CANVAS_HEIGHT_CHANGED)
ASFlagType handle_canvas_config( ASCanvas *canvas ); /* Returns True if moved/resized */
Bool get_canvas_position( ASCanvas *pc, Window *pparent, int *px, int *py, unsigned int *pbw );
void clear_canvas_shape (ASCanvas * pc, Bool force_for_container);
void invalidate_canvas_config( ASCanvas *canvas );
Bool get_current_canvas_size( ASCanvas * pc, unsigned int *pwidth, unsigned int *pheight );
Bool get_current_canvas_geometry( ASCanvas * pc, int *px, int *py, unsigned int *pwidth, unsigned int *pheight, unsigned int *pbw );
Pixmap get_canvas_canvas( ASCanvas *pc );
Pixmap get_canvas_mask( ASCanvas *pc );
Bool draw_canvas_image( ASCanvas *pc, struct ASImage *im, int x, int y );
void fill_canvas_mask (ASCanvas * pc, int win_x, int win_y, int width, int height);
Bool draw_canvas_mask (ASCanvas * pc, ASImage * im, int x, int y);
#ifdef TRACE_update_canvas_display
void trace_update_canvas_display (ASCanvas * pc, const char *file, int line);
#define update_canvas_display(p) trace_update_canvas_display((p),__FILE__,__LINE__)
#else
void update_canvas_display( ASCanvas *pc );
#endif
void update_canvas_display_mask (ASCanvas * pc, Bool force);
Bool save_canvas( ASCanvas *pc );
Bool swap_save_canvas( ASCanvas *pc );
void invalidate_canvas_save( ASCanvas *pc );
Bool restore_canvas( ASCanvas *pc );
Bool check_canvas_shaped( ASCanvas *pc);
Bool refresh_container_shape( ASCanvas *pc );
Bool combine_canvas_shape (ASCanvas *parent, ASCanvas *child );
Bool combine_canvas_shape_at_geom (ASCanvas *parent, ASCanvas *child, int child_x, int child_y, int child_w, int child_h, int child_bw );
Bool combine_canvas_shape_at (ASCanvas *parent, ASCanvas *child, int child_x, int child_y );
ASFlagType resize_canvas( ASCanvas *pc, unsigned int width, unsigned int height );
void move_canvas (ASCanvas * pc, int x, int y);
ASFlagType moveresize_canvas (ASCanvas * pc, int x, int y, unsigned int width, unsigned int height);
ASFlagType configure_canvas (ASCanvas * pc, int x, int y, unsigned int width, unsigned int height, ASFlagType mask );
void map_canvas_window( ASCanvas *pc, Bool raised );
void unmap_canvas_window( ASCanvas *pc );
void reparent_canvas_window( ASCanvas *pc, Window dst, int x, int y );
void quietly_reparent_canvas( ASCanvas *pc, Window dst, long event_mask, Bool use_root_pos, Window below );
Bool is_canvas_needs_redraw( ASCanvas *pc );
Bool is_canvas_dirty( ASCanvas *pc );
void add_canvas_grid( struct ASGrid *grid, ASCanvas *canvas, int outer_gravity, int inner_gravity, Bool absolute);
void set_root_clip_area( ASCanvas *canvas );
void send_canvas_configure_notify(ASCanvas *parent, ASCanvas *canvas);
#ifdef __cplusplus
}
#endif
#endif
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