diff options
Diffstat (limited to 'macosx/tkMacOSXRegion.c')
| -rw-r--r-- | macosx/tkMacOSXRegion.c | 155 |
1 files changed, 45 insertions, 110 deletions
diff --git a/macosx/tkMacOSXRegion.c b/macosx/tkMacOSXRegion.c index 4c480c6..1980b3a 100644 --- a/macosx/tkMacOSXRegion.c +++ b/macosx/tkMacOSXRegion.c @@ -4,11 +4,13 @@ * Implements X window calls for manipulating regions * * Copyright (c) 1995-1996 Sun Microsystems, Inc. - * Copyright 2001, Apple Computer, Inc. - * Copyright (c) 2006-2007 Daniel A. Steffen <das@users.sourceforge.net> + * Copyright 2001-2009, Apple Inc. + * Copyright (c) 2006-2009 Daniel A. Steffen <das@users.sourceforge.net> * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. + * + * RCS: @(#) $Id$ */ #include "tkMacOSXPrivate.h" @@ -19,8 +21,8 @@ * * TkCreateRegion -- * - * Implements the equivelent of the X window function - * XCreateRegion. See X window documentation for more details. + * Implements the equivelent of the X window function XCreateRegion. See + * Xwindow documentation for more details. * * Results: * Returns an allocated region handle. @@ -42,8 +44,8 @@ TkCreateRegion(void) * * TkDestroyRegion -- * - * Implements the equivelent of the X window function - * XDestroyRegion. See X window documentation for more details. + * Implements the equivelent of the X window function XDestroyRegion. See + * Xwindow documentation for more details. * * Results: * None. @@ -68,8 +70,8 @@ TkDestroyRegion( * * TkIntersectRegion -- * - * Implements the equivalent of the X window function - * XIntersectRegion. See X window documentation for more details. + * Implements the equivalent of the X window function XIntersectRegion. + * See Xwindow documentation for more details. * * Results: * None. @@ -95,8 +97,8 @@ TkIntersectRegion( * * TkSubtractRegion -- * - * Implements the equivalent of the X window function - * XSubtractRegion. See X window documentation for more details. + * Implements the equivalent of the X window function XSubtractRegion. + * See X window documentation for more details. * * Results: * None. @@ -123,8 +125,7 @@ TkSubtractRegion( * TkUnionRectWithRegion -- * * Implements the equivelent of the X window function - * XUnionRectWithRegion. See X window documentation for more - * details. + * XUnionRectWithRegion. See Xwindow documentation for more details. * * Results: * None. @@ -161,8 +162,8 @@ TkUnionRectWithRegion( * * TkRectInRegion -- * - * Implements the equivelent of the X window function - * XRectInRegion. See X window documentation for more details. + * Implements the equivelent of the X window function XRectInRegion. See + * Xwindow documentation for more details. * * Results: * Returns RectanglePart or RectangleOut. Note that this is not a @@ -185,38 +186,8 @@ TkRectInRegion( int result; const CGRect r = CGRectMake(x, y, width, height); - TK_IF_MAC_OS_X_API (4, HIShapeIntersectsRect, - result = HIShapeIntersectsRect((HIShapeRef) region, &r) ? - RectanglePart : RectangleOut; - ) TK_ELSE_MAC_OS_X (4, - HIShapeRef rectRgn = HIShapeCreateWithRect(&r); - HIShapeRef sectRgn = HIShapeCreateIntersection((HIShapeRef) region, - rectRgn); - -#if 1 - result = !HIShapeIsEmpty(sectRgn) ? RectanglePart : RectangleOut; -#else - /* - * More expensive full implementation that tests for RectangleIn, - * unused by Tk at present. - */ - - if (!HIShapeIsEmpty(sectRgn)) { - HIShapeRef diffRgn = HIShapeCreateDifference(rectRgn, sectRgn); - - if (HIShapeIsEmpty(diffRgn)) { - result = RectangleIn; - } else { - result = RectanglePart; - } - CFRelease(diffRgn); - } else { - result = RectangleOut; - } -#endif - CFRelease(sectRgn); - CFRelease(rectRgn); - ) TK_ENDIF + result = HIShapeIntersectsRect((HIShapeRef) region, &r) ? + RectanglePart : RectangleOut; return result; } @@ -225,8 +196,8 @@ TkRectInRegion( * * TkClipBox -- * - * Implements the equivelent of the X window function XClipBox. - * See X window documentation for more details. + * Implements the equivelent of the X window function XClipBox. See + * Xwindow documentation for more details. * * Results: * None. @@ -243,7 +214,7 @@ TkClipBox( XRectangle* rect_return) { CGRect rect; - + HIShapeGetBounds((HIShapeRef) r, &rect); rect_return->x = rect.origin.x; rect_return->y = rect.origin.y; @@ -256,8 +227,8 @@ TkClipBox( * * TkpBuildRegionFromAlphaData -- * - * Set up a rectangle of the given region based on the supplied - * alpha data. + * Set up a rectangle of the given region based on the supplied alpha + * data. * * Results: * None @@ -288,13 +259,20 @@ TkpBuildRegionFromAlphaData( for (y1 = 0; y1 < height; y1++) { lineDataPtr = dataPtr; for (x1 = 0; x1 < width; x1 = end) { - /* search for first non-transparent pixel */ + /* + * Search for first non-transparent pixel. + */ + while ((x1 < width) && !*lineDataPtr) { x1++; lineDataPtr += pixelStride; } end = x1; - /* search for first transparent pixel */ + + /* + * Search for first transparent pixel. + */ + while ((end < width) && *lineDataPtr) { end++; lineDataPtr += pixelStride; @@ -495,20 +473,7 @@ TkMacOSXHIShapeCreateEmpty(void) { HIShapeRef result; - TK_IF_MAC_OS_X_API (4, HIShapeCreateEmpty, - result = HIShapeCreateEmpty(); - ) TK_ELSE_MAC_OS_X (4, - static HIShapeRef emptyRgn = NULL; - - if (!emptyRgn) { - HIMutableShapeRef rgn = HIShapeCreateMutable(); - - emptyRgn = HIShapeCreateCopy(rgn); - CFRelease(rgn); - } - result = HIShapeCreateCopy(emptyRgn); - ) TK_ENDIF - + result = HIShapeCreateEmpty(); return result; } @@ -518,15 +483,7 @@ TkMacOSXHIShapeCreateMutableWithRect( { HIMutableShapeRef result; - TK_IF_MAC_OS_X_API (5, HIShapeCreateMutableWithRect, - result = HIShapeCreateMutableWithRect(inRect); - ) TK_ELSE_MAC_OS_X (5, - HIShapeRef rgn = HIShapeCreateWithRect(inRect); - - result = HIShapeCreateMutableCopy(rgn); - CFRelease(rgn); - ) TK_ENDIF - + result = HIShapeCreateMutableWithRect(inRect); return result; } @@ -537,15 +494,7 @@ TkMacOSXHIShapeSetWithShape( { OSStatus result; - TK_IF_MAC_OS_X_API (5, HIShapeSetWithShape, - result = HIShapeSetWithShape(inDestShape, inSrcShape); - ) TK_ELSE_MAC_OS_X (5, - result = HIShapeSetEmpty(inDestShape); - if (result == noErr) { - result = HIShapeDifference(inSrcShape, inDestShape, inDestShape); - } - ) TK_ENDIF - + result = HIShapeSetWithShape(inDestShape, inSrcShape); return result; } @@ -586,15 +535,7 @@ TkMacOSHIShapeUnionWithRect( { OSStatus result; - TK_IF_MAC_OS_X_API (5, HIShapeUnionWithRect, - result = HIShapeUnionWithRect(inShape, inRect); - ) TK_ELSE_MAC_OS_X (5, - HIShapeRef rgn = HIShapeCreateWithRect(inRect); - - result = TkMacOSHIShapeUnion(rgn, inShape, inShape); - CFRelease(rgn); - ) TK_ENDIF - + result = HIShapeUnionWithRect(inShape, inRect); return result; } @@ -606,21 +547,15 @@ TkMacOSHIShapeUnion( { OSStatus result; - TK_IF_HI_TOOLBOX (4, - result = HIShapeUnion(inShape1, inShape2, outResult); - ) TK_ELSE_HI_TOOLBOX (4, - /* Workaround HIShapeUnion bug in 10.3 and earlier */ - HIShapeRef rgn = HIShapeCreateCopy(outResult); - - result = HIShapeUnion(inShape1, inShape2, (HIMutableShapeRef) rgn); - if (result == noErr) { - result = HIShapeSetEmpty(outResult); - if (result == noErr) { - result = HIShapeDifference(rgn, outResult, outResult); - } - } - CFRelease(rgn); - ) TK_ENDIF - + result = HIShapeUnion(inShape1, inShape2, outResult); return result; } + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 79 + * coding: utf-8 + * End: + */ |