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