69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
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#ifndef _LAYER_H_
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#define _LAYER_H_
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#include <GraphicsDefs.h>
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#include <Region.h>
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#include <Rect.h>
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class ServerWindow;
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class Layer
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{
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public:
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Layer(ServerWindow *Win, const char *Name, Layer *Parent, BRect &Frame, int32 Flags);
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virtual ~Layer(void);
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void Initialize(void);
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void Show(void);
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void Hide(void);
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bool IsVisible(void);
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void Update(bool ForceUpdate);
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void AddChild(Layer *child, bool topmost=true);
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void RemoveChild(Layer *child);
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void RemoveSelf(void);
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void SetAddedData(uint8 count);
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virtual void SetFrame(const BRect &Rect);
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BRect Frame(void);
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BRect Bounds(void);
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void Invalidate(const BRect &rect);
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void Invalidate(bool recursive);
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void AddRegion(BRegion *Region);
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void RemoveRegions(void);
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void UpdateRegions(bool ForceUpdate=true, bool Root=true);
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void SetDirty(bool flag);
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void MarkModified(BRect rect);
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// Render functions:
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virtual void Draw(const BRect &Rect);
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const char *name;
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int32 handle;
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ServerWindow *window; // Window associated with this. NULL for background layer
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BRect frame;
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BRegion *visible, // Everything currently visible
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*full, // The complete region
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*update; // Area to be updated at next redraw
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int32 flags; // Various flags for behavior
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uint8 hidecount; // tracks the number of hide calls
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bool isdirty; // has regions which are invalid
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// The whole set of layers is actually a tree
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Layer *topchild, *bottomchild;
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Layer *uppersibling, *lowersibling;
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Layer *parent;
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// Render state:
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BPoint penpos;
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rgb_color high, low, erase;
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int32 drawingmode;
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};
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#endif
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