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//========================================================================
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//========================================================================
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#ifdef USE_GCC_PRAGMAS
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#include "SplashTypes.h"
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#include "SplashMath.h"
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class SplashXPathScanner;
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//------------------------------------------------------------------------
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enum SplashClipResult {
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//------------------------------------------------------------------------
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//------------------------------------------------------------------------
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// Create a clip, for the given rectangle.
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SplashClip(SplashCoord x0, SplashCoord y0,
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SplashCoord x1, SplashCoord y1,
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SplashClip *copy() { return new SplashClip(this); }
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// Reset the clip to a rectangle.
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void resetToRect(SplashCoord x0, SplashCoord y0,
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SplashCoord x1, SplashCoord y1);
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// Intersect the clip with a rectangle.
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SplashError clipToRect(SplashCoord x0, SplashCoord y0,
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SplashCoord x1, SplashCoord y1);
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// Interesect the clip with <path>.
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SplashError clipToPath(SplashPath *path, SplashCoord *matrix,
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SplashCoord flatness, GBool eo);
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// Returns true if (<x>,<y>) is inside the clip.
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GBool test(int x, int y);
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// Tests a rectangle against the clipping region. Returns one of:
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// - splashClipAllInside if the entire rectangle is inside the
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// clipping region, i.e., all pixels in the rectangle are
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// - splashClipAllOutside if the entire rectangle is outside the
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// clipping region, i.e., all the pixels in the rectangle are
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// - splashClipPartial if the rectangle is part inside and part
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// outside the clipping region
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SplashClipResult testRect(int rectXMin, int rectYMin,
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int rectXMax, int rectYMax);
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// Similar to testRect, but tests a horizontal span.
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SplashClipResult testSpan(int spanXMin, int spanXMax, int spanY);
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// Clips an anti-aliased line by setting pixels to zero. On entry,
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// all non-zero pixels are between <x0> and <x1>. This function
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// will update <x0> and <x1>.
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void clipAALine(SplashBitmap *aaBuf, int *x0, int *x1, int y);
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// Get the rectangle part of the clip region, in integer coordinates.
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int getXMinI() { return xMinI; }
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int getXMaxI() { return xMaxI; }
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int getYMinI() { return yMinI; }
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int getYMaxI() { return yMaxI; }
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// Get the number of arbitrary paths used by the clip region.
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int getNumPaths() { return length; }
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SplashClip(SplashClip *clip);
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void grow(int nPaths);
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SplashCoord xMin, yMin, xMax, yMax;
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int xMinI, yMinI, xMaxI, yMaxI;
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SplashXPathScanner **scanners;
added
removed
lib/pdf/xpdf/SplashClip.h
