102 lines
2.3 KiB
C++
102 lines
2.3 KiB
C++
/*
|
|
* @(#)AnchorTables.cpp 1.6 00/03/15
|
|
*
|
|
* (C) Copyright IBM Corp. 1998, 1999, 2000 - All Rights Reserved
|
|
*
|
|
*/
|
|
|
|
#include "LETypes.h"
|
|
#include "LEFontInstance.h"
|
|
#include "DeviceTables.h"
|
|
#include "AnchorTables.h"
|
|
#include "LESwaps.h"
|
|
|
|
void AnchorTable::getAnchor(LEGlyphID glyphID, LEFontInstance *fontInstance,
|
|
LEPoint &anchor)
|
|
{
|
|
switch(SWAPW(anchorFormat)) {
|
|
case 1:
|
|
{
|
|
Format1AnchorTable *f1 = (Format1AnchorTable *) this;
|
|
|
|
f1->getAnchor(fontInstance, anchor);
|
|
break;
|
|
}
|
|
|
|
case 2:
|
|
{
|
|
Format2AnchorTable *f2 = (Format2AnchorTable *) this;
|
|
|
|
f2->getAnchor(glyphID, fontInstance, anchor);
|
|
break;
|
|
}
|
|
|
|
case 3:
|
|
{
|
|
Format3AnchorTable *f3 = (Format3AnchorTable *) this;
|
|
|
|
f3->getAnchor(fontInstance, anchor);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void Format1AnchorTable::getAnchor(LEFontInstance *fontInstance, LEPoint &anchor)
|
|
{
|
|
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, LEFontInstance *fontInstance, LEPoint &anchor)
|
|
{
|
|
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(LEFontInstance *fontInstance, LEPoint &anchor)
|
|
{
|
|
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) {
|
|
DeviceTable *dtx = (DeviceTable *) ((char *) this + dtxOffset);
|
|
le_int16 adjx = dtx->getAdjustment((le_int16) fontInstance->getXPixelsPerEm());
|
|
|
|
pixels.fX += adjx;
|
|
}
|
|
|
|
if (dtyOffset != 0) {
|
|
DeviceTable *dty = (DeviceTable *) ((char *) this + dtyOffset);
|
|
le_int16 adjy = dty->getAdjustment((le_int16) fontInstance->getYPixelsPerEm());
|
|
|
|
pixels.fY += adjy;
|
|
}
|
|
|
|
fontInstance->pixelsToUnits(pixels, anchor);
|
|
}
|
|
|
|
|
|
|