1. NAME▲

XkbComputeShapeTop - Determines the bounding box of the top surface of a shape

2. SYNOPSIS ▲

Bool XkbComputeShapeTop (XkbShapePtr shape , XkbBoundsPtr bounds_rtrn );

3. ARGUMENTS ▲

  • - shape
        shape to be examined
  • - bounds_rtrn
        backfilled with the bounding box for the shape

4. DESCRIPTION ▲

Xkb provides a number of convenience functions to help use a keyboard geometry. These include functions to return the bounding box of a shape's top surface and to update the bounding box of a shape row or section. A shape is made up of a number of outlines. Each outline is a polygon made up of a number of points. The bounding box of a shape is a rectangle that contains all the outlines of that shape. XkbComputeShapeTopreturns a BoundsRec that contains two x and y coordinates. These coordinates describe the corners of a rectangle that contains the outline that describes the top surface of the shape. The top surface is defined to be the approximating outline if the approxfield of shapeis not NULL. If approxis NULL, the top surface is defined as the last outline in the shape'sarray of outlines. XkbComputeShapeTopreturns False if shapeis NULL or if there are no outlines for the shape; otherwise, it returns True.

5. STRUCTURES ▲

 
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typedef struct _XkbBounds {
	short	x1,y1;	/(** upper left corner of the bounds, in mm/10 */
	short	x2,y2;	/(** lower right corner of the bounds, in mm/10 */
} XkbBoundsRec, *XkbBoundsPtr;