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author | Jonathan Kew <jfkthame@googlemail.com> | 2008-03-04 13:26:36 +0000 |
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committer | Jonathan Kew <jfkthame@googlemail.com> | 2008-03-04 13:26:36 +0000 |
commit | 53790d2a0c50915d8cec71df3e89cd24d887b2fe (patch) | |
tree | 16f6b4df067eb3c2024e0a7735cb7ccea86b3aba /Build/source/libs/icu-xetex/layout/AnchorTables.cpp | |
parent | f483a5de9331a257f597282e611ecfb63f5ab118 (diff) |
update icu-xetex to 3.8.1-based code from xetex repository
git-svn-id: svn://tug.org/texlive/trunk@6842 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/icu-xetex/layout/AnchorTables.cpp')
-rw-r--r-- | Build/source/libs/icu-xetex/layout/AnchorTables.cpp | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/Build/source/libs/icu-xetex/layout/AnchorTables.cpp b/Build/source/libs/icu-xetex/layout/AnchorTables.cpp new file mode 100644 index 00000000000..24f3cf31df4 --- /dev/null +++ b/Build/source/libs/icu-xetex/layout/AnchorTables.cpp @@ -0,0 +1,106 @@ +/* + * + * (C) Copyright IBM Corp. 1998-2005 - 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: just use x, y coordinate, like format 1... + const Format1AnchorTable *f1 = (const Format1AnchorTable *) this; + + f1->getAnchor(fontInstance, anchor); + 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 + |