diff -r 000000000000 -r 1fb32624e06b fontservices/textshaperplugin/IcuSource/layout/AnchorTables.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/fontservices/textshaperplugin/IcuSource/layout/AnchorTables.cpp Tue Feb 02 02:02:46 2010 +0200 @@ -0,0 +1,105 @@ +/* + * + * (C) Copyright IBM Corp. 1998-2004 - All Rights Reserved + * + */ + +#include "LETypes.h" +#include "LEFontInstance.h" +#include "DeviceTables.h" +#include "AnchorTables.h" +#include "LESwaps.h" + +U_NAMESPACE_BEGIN + +void AnchorTable::getAnchor(LEGlyphID glyphID, const LEFontInstance *fontInstance, + LEPoint &anchor) const +{ + switch(SWAPW(anchorFormat)) { + case 1: + { + const Format1AnchorTable *f1 = (const Format1AnchorTable *) this; + + f1->getAnchor(fontInstance, anchor); + break; + } + + case 2: + { + const Format2AnchorTable *f2 = (const Format2AnchorTable *) this; + + f2->getAnchor(glyphID, fontInstance, anchor); + break; + } + + case 3: + { + const Format3AnchorTable *f3 = (const Format3AnchorTable *) this; + + f3->getAnchor(fontInstance, anchor); + break; + } + + default: + // Unknown format, set the anchor point to (0, 0) + anchor.fX = 0; + anchor.fY = 0; + break; + } +} + +void Format1AnchorTable::getAnchor(const LEFontInstance *fontInstance, LEPoint &anchor) const +{ + le_int16 x = SWAPW(xCoordinate); + le_int16 y = SWAPW(yCoordinate); + LEPoint pixels; + + fontInstance->transformFunits(x, y, pixels); + + fontInstance->pixelsToUnits(pixels, anchor); +} + +void Format2AnchorTable::getAnchor(LEGlyphID glyphID, const LEFontInstance *fontInstance, LEPoint &anchor) const +{ + LEPoint point; + + if (! fontInstance->getGlyphPoint(glyphID, SWAPW(anchorPoint), point)) { + le_int16 x = SWAPW(xCoordinate); + le_int16 y = SWAPW(yCoordinate); + + fontInstance->transformFunits(x, y, point); + } + + + fontInstance->pixelsToUnits(point, anchor); +} + +void Format3AnchorTable::getAnchor(const LEFontInstance *fontInstance, LEPoint &anchor) const +{ + le_int16 x = SWAPW(xCoordinate); + le_int16 y = SWAPW(yCoordinate); + LEPoint pixels; + Offset dtxOffset = SWAPW(xDeviceTableOffset); + Offset dtyOffset = SWAPW(yDeviceTableOffset); + + fontInstance->transformFunits(x, y, pixels); + + if (dtxOffset != 0) { + const DeviceTable *dtx = (const DeviceTable *) ((char *) this + dtxOffset); + le_int16 adjx = dtx->getAdjustment((le_int16) fontInstance->getXPixelsPerEm()); + + pixels.fX += adjx; + } + + if (dtyOffset != 0) { + const DeviceTable *dty = (const DeviceTable *) ((char *) this + dtyOffset); + le_int16 adjy = dty->getAdjustment((le_int16) fontInstance->getYPixelsPerEm()); + + pixels.fY += adjy; + } + + fontInstance->pixelsToUnits(pixels, anchor); +} + +U_NAMESPACE_END +