J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 3 | * |
| 4 | * This code is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License version 2 only, as |
| 6 | * published by the Free Software Foundation. Sun designates this |
| 7 | * particular file as subject to the "Classpath" exception as provided |
| 8 | * by Sun in the LICENSE file that accompanied this code. |
| 9 | * |
| 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 13 | * version 2 for more details (a copy is included in the LICENSE file that |
| 14 | * accompanied this code). |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License version |
| 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 19 | * |
| 20 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 21 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 22 | * have any questions. |
| 23 | * |
| 24 | */ |
| 25 | |
| 26 | /* |
| 27 | * |
| 28 | * (C) Copyright IBM Corp. 1998-2005 - All Rights Reserved |
| 29 | * |
| 30 | */ |
| 31 | |
| 32 | #include "LETypes.h" |
| 33 | #include "LEFontInstance.h" |
| 34 | #include "DeviceTables.h" |
| 35 | #include "AnchorTables.h" |
| 36 | #include "LESwaps.h" |
| 37 | |
| 38 | void AnchorTable::getAnchor(LEGlyphID glyphID, const LEFontInstance *fontInstance, |
| 39 | LEPoint &anchor) const |
| 40 | { |
| 41 | switch(SWAPW(anchorFormat)) { |
| 42 | case 1: |
| 43 | { |
| 44 | const Format1AnchorTable *f1 = (const Format1AnchorTable *) this; |
| 45 | |
| 46 | f1->getAnchor(fontInstance, anchor); |
| 47 | break; |
| 48 | } |
| 49 | |
| 50 | case 2: |
| 51 | { |
| 52 | const Format2AnchorTable *f2 = (const Format2AnchorTable *) this; |
| 53 | |
| 54 | f2->getAnchor(glyphID, fontInstance, anchor); |
| 55 | break; |
| 56 | } |
| 57 | |
| 58 | case 3: |
| 59 | { |
| 60 | const Format3AnchorTable *f3 = (const Format3AnchorTable *) this; |
| 61 | |
| 62 | f3->getAnchor(fontInstance, anchor); |
| 63 | break; |
| 64 | } |
| 65 | |
| 66 | default: |
| 67 | // unknown format: just use x, y coordinate, like format 1... |
| 68 | const Format1AnchorTable *f1 = (const Format1AnchorTable *) this; |
| 69 | |
| 70 | f1->getAnchor(fontInstance, anchor); |
| 71 | break; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | void Format1AnchorTable::getAnchor(const LEFontInstance *fontInstance, LEPoint &anchor) const |
| 76 | { |
| 77 | le_int16 x = SWAPW(xCoordinate); |
| 78 | le_int16 y = SWAPW(yCoordinate); |
| 79 | LEPoint pixels; |
| 80 | |
| 81 | fontInstance->transformFunits(x, y, pixels); |
| 82 | |
| 83 | fontInstance->pixelsToUnits(pixels, anchor); |
| 84 | } |
| 85 | |
| 86 | void Format2AnchorTable::getAnchor(LEGlyphID glyphID, const LEFontInstance *fontInstance, LEPoint &anchor) const |
| 87 | { |
| 88 | LEPoint point; |
| 89 | |
| 90 | if (! fontInstance->getGlyphPoint(glyphID, SWAPW(anchorPoint), point)) { |
| 91 | le_int16 x = SWAPW(xCoordinate); |
| 92 | le_int16 y = SWAPW(yCoordinate); |
| 93 | |
| 94 | fontInstance->transformFunits(x, y, point); |
| 95 | } |
| 96 | |
| 97 | |
| 98 | fontInstance->pixelsToUnits(point, anchor); |
| 99 | } |
| 100 | |
| 101 | void Format3AnchorTable::getAnchor(const LEFontInstance *fontInstance, LEPoint &anchor) const |
| 102 | { |
| 103 | le_int16 x = SWAPW(xCoordinate); |
| 104 | le_int16 y = SWAPW(yCoordinate); |
| 105 | LEPoint pixels; |
| 106 | Offset dtxOffset = SWAPW(xDeviceTableOffset); |
| 107 | Offset dtyOffset = SWAPW(yDeviceTableOffset); |
| 108 | |
| 109 | fontInstance->transformFunits(x, y, pixels); |
| 110 | |
| 111 | if (dtxOffset != 0) { |
| 112 | const DeviceTable *dtx = (const DeviceTable *) ((char *) this + dtxOffset); |
| 113 | le_int16 adjx = dtx->getAdjustment((le_int16) fontInstance->getXPixelsPerEm()); |
| 114 | |
| 115 | pixels.fX += adjx; |
| 116 | } |
| 117 | |
| 118 | if (dtyOffset != 0) { |
| 119 | const DeviceTable *dty = (const DeviceTable *) ((char *) this + dtyOffset); |
| 120 | le_int16 adjy = dty->getAdjustment((le_int16) fontInstance->getYPixelsPerEm()); |
| 121 | |
| 122 | pixels.fY += adjy; |
| 123 | } |
| 124 | |
| 125 | fontInstance->pixelsToUnits(pixels, anchor); |
| 126 | } |