001 /* GlyphVector.java 002 Copyright (C) 2002 Free Software Foundation, Inc. 003 004 This file is part of GNU Classpath. 005 006 GNU Classpath is free software; you can redistribute it and/or modify 007 it under the terms of the GNU General Public License as published by 008 the Free Software Foundation; either version 2, or (at your option) 009 any later version. 010 011 GNU Classpath is distributed in the hope that it will be useful, but 012 WITHOUT ANY WARRANTY; without even the implied warranty of 013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 General Public License for more details. 015 016 You should have received a copy of the GNU General Public License 017 along with GNU Classpath; see the file COPYING. If not, write to the 018 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 019 02110-1301 USA. 020 021 Linking this library statically or dynamically with other modules is 022 making a combined work based on this library. Thus, the terms and 023 conditions of the GNU General Public License cover the whole 024 combination. 025 026 As a special exception, the copyright holders of this library give you 027 permission to link this library with independent modules to produce an 028 executable, regardless of the license terms of these independent 029 modules, and to copy and distribute the resulting executable under 030 terms of your choice, provided that you also meet, for each linked 031 independent module, the terms and conditions of the license of that 032 module. An independent module is a module which is not derived from 033 or based on this library. If you modify this library, you may extend 034 this exception to your version of the library, but you are not 035 obligated to do so. If you do not wish to do so, delete this 036 exception statement from your version. */ 037 038 039 package java.awt.font; 040 041 import java.awt.Font; 042 import java.awt.Rectangle; 043 import java.awt.Shape; 044 import java.awt.geom.AffineTransform; 045 import java.awt.geom.Point2D; 046 import java.awt.geom.Rectangle2D; 047 048 /** 049 * @author Lillian Angel (langel at redhat dot com) 050 * @author Michael Koch 051 */ 052 public abstract class GlyphVector implements Cloneable 053 { 054 public static final int FLAG_COMPLEX_GLYPHS = 8; 055 public static final int FLAG_HAS_POSITION_ADJUSTMENTS = 2; 056 public static final int FLAG_HAS_TRANSFORMS = 1; 057 public static final int FLAG_MASK = 15; 058 public static final int FLAG_RUN_RTL = 4; 059 060 /** 061 * Constructs a <code>GlyphVector</code> object. 062 */ 063 public GlyphVector () 064 { 065 } 066 067 public abstract boolean equals (GlyphVector set); 068 069 public abstract Font getFont (); 070 071 public abstract FontRenderContext getFontRenderContext (); 072 073 public int getGlyphCharIndex (int glyphIndex) 074 { 075 return glyphIndex; 076 } 077 078 public int[] getGlyphCharIndices(int beginGlyphIndex, int numEntries, 079 int[] codeReturn) 080 { 081 if (codeReturn == null) 082 codeReturn = new int[numEntries]; 083 084 int i = 0; 085 int j = beginGlyphIndex; 086 while (j < numEntries) 087 codeReturn[i++] = getGlyphCharIndex(j++); 088 089 return codeReturn; 090 } 091 092 public abstract int getGlyphCode (int glyphIndex); 093 094 public abstract int[] getGlyphCodes (int beginGlyphIndex, int numEntries, 095 int[] codeReturn); 096 097 public abstract GlyphJustificationInfo getGlyphJustificationInfo 098 (int glyphIndex); 099 100 public abstract Shape getGlyphLogicalBounds (int glyphIndex); 101 102 public abstract GlyphMetrics getGlyphMetrics (int glyphIndex); 103 104 public abstract Shape getGlyphOutline (int glyphIndex); 105 106 public Shape getGlyphOutline(int glyphIndex, float x, float y) 107 { 108 Shape s = getGlyphOutline(glyphIndex); 109 110 // This is the only way to translate the origin of a shape 111 AffineTransform at = AffineTransform.getTranslateInstance(x, y); 112 return at.createTransformedShape(s); 113 } 114 115 public Rectangle getGlyphPixelBounds(int index, FontRenderContext renderFRC, 116 float x, float y) 117 { 118 Rectangle bounds = new Rectangle(); 119 Rectangle2D rect = getGlyphVisualBounds(index).getBounds2D(); 120 121 bounds.x = (int) (rect.getX() + x); 122 bounds.y = (int) (rect.getY() + y); 123 bounds.width = (int) rect.getMaxX() - bounds.x; 124 bounds.height = (int) rect.getMaxY() - bounds.y; 125 126 return bounds; 127 } 128 129 public abstract Point2D getGlyphPosition (int glyphIndex); 130 131 public abstract float[] getGlyphPositions (int beginGlyphIndex, 132 int numEntries, 133 float[] positionReturn); 134 135 public abstract AffineTransform getGlyphTransform (int glyphIndex); 136 137 public abstract Shape getGlyphVisualBounds (int glyphIndex); 138 139 public int getLayoutFlags() 140 { 141 return 0; 142 } 143 144 public abstract Rectangle2D getLogicalBounds (); 145 146 public abstract int getNumGlyphs (); 147 148 public abstract Shape getOutline (); 149 150 public abstract Shape getOutline (float x, float y); 151 152 public Rectangle getPixelBounds (FontRenderContext renderFRC, 153 float x, float y) 154 { 155 Rectangle bounds = new Rectangle(); 156 Rectangle2D rect = getVisualBounds(); 157 158 bounds.x = (int) (rect.getX() + x); 159 bounds.y = (int) (rect.getY() + y); 160 bounds.width = (int) rect.getMaxX() - bounds.x; 161 bounds.height = (int) rect.getMaxY() - bounds.y; 162 163 return bounds; 164 } 165 166 public abstract Rectangle2D getVisualBounds (); 167 168 public abstract void performDefaultLayout (); 169 170 public abstract void setGlyphPosition (int glyphIndex, Point2D newPos); 171 172 public abstract void setGlyphTransform (int glyphIndex, 173 AffineTransform newTX); 174 }