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authorJonathan Kew <jfkthame@googlemail.com>2008-03-04 13:26:36 +0000
committerJonathan Kew <jfkthame@googlemail.com>2008-03-04 13:26:36 +0000
commit53790d2a0c50915d8cec71df3e89cd24d887b2fe (patch)
tree16f6b4df067eb3c2024e0a7735cb7ccea86b3aba /Build/source/libs/icu-xetex/layout/AnchorTables.cpp
parentf483a5de9331a257f597282e611ecfb63f5ab118 (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.cpp106
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
+