--- /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
+