Class TRegionFix

class TRegionFix : public TRegion;

Description

A fixed size region.

The region consists of a fixed number of rectangles; this number is specified in the templated argument. The region cannot be expanded to contain more than this number of rectangles. If an attempt is made to do so, the region's error flag is set, and the region is cleared.

Note that when adding a rectangle to a region, if that rectangle overlaps an existing rectangle, the operation causes more than one rectangle to be created.

Derivation

• TRegion - Clipping region - abstract base class.

• TRegionFix - A fixed size region.

Members

Defined in TRegionFix:

• TRegionFix()Constructs a default fixed size region.
• TRegionFix(const TRect &)Constructs a fixed size region with a TRect.
• TRegionFix(const TRegionFix< S > &)Copy constructor.

Inherited from TRegion:

• AddRect(const TRect &)Adds a rectangle to this region.
• BoundingRect()constGets the minimal rectangle that bounds the entire region.
• CheckError()constTests whether the region's error flag is set.
• Clear()Clears this region.
• ClipRect(const TRect &)Clips the region to the specified rectangle.
• Contains(const TPoint &)constTests whether a point is located within the region.
• Copy(const TRegion &)Copies another region to this region.
• Count()constGets the number of rectangles in this region.
• ERRegionBuf
• ForceError()Sets the error flag, and clears the region.
• Intersect(const TRegion &)Replaces this region with the area of intersection between it and the specified ...
• Intersection(const TRegion &,const TRegion &)Replaces this region with the area of intersection between two specified regions...
• Intersects(const TRect &)constTests whether where there is any intersection between this region and the specif...
• IsContainedBy(const TRect &)constTests whether the region is fully enclosed within the specified rectangle.
• IsEmpty()constTests whether the region is empty.
• Offset(TInt,TInt)Moves the region by adding X and Y offsets to the co-ordinates of its corners.
• Offset(const TPoint &)Moves the region by adding a TPoint offset to the co-ordinates of its corners.
• RectangleList()constGets a pointer to the array of rectangles defining this region.
• RectangleListW()
• Sort()Sorts the region's array of rectangles according to their vertical position on t...
• Sort(const TPoint &)Sorts the region's array of rectangles according to a specified sort order.
• SubRect(const TRect &,TRegion *)Removes a rectangle from this region.
• SubRegion(const TRegion &,TRegion *)Removes a region.
• TRegion(TInt)
• Tidy()Merges all rectangles within this region which share an adjacent edge of the sam...
• Union(const TRegion &)Replaces this region with the union of it and the specified region.
• anonymous
• iAllocedRects
• iCount
• iError
• operator[](TInt)constGets a rectangle from the region.

inline TRegionFix();

Description

Constructs a default fixed size region.

inline TRegionFix(const TRect &aRect);

Description

Constructs a fixed size region with a TRect.

Parameters

const TRect &aRect Rectangle to be added to the newly constructed region.

inline TRegionFix(const TRegionFix< S > &aRegion);

Description

Copy constructor.

Parameters

const TRegionFix< S > &aRegion The TRegionFix object to be copied.