001/* 002 * SVG Salamander 003 * Copyright (c) 2004, Mark McKay 004 * All rights reserved. 005 * 006 * Redistribution and use in source and binary forms, with or 007 * without modification, are permitted provided that the following 008 * conditions are met: 009 * 010 * - Redistributions of source code must retain the above 011 * copyright notice, this list of conditions and the following 012 * disclaimer. 013 * - Redistributions in binary form must reproduce the above 014 * copyright notice, this list of conditions and the following 015 * disclaimer in the documentation and/or other materials 016 * provided with the distribution. 017 * 018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 019 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 020 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 021 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 022 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 023 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 025 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 026 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 027 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 029 * OF THE POSSIBILITY OF SUCH DAMAGE. 030 * 031 * Mark McKay can be contacted at mark@kitfox.com. Salamander and other 032 * projects can be found at http://www.kitfox.com 033 * 034 * Created on April 24, 2015 035 */ 036package com.kitfox.svg.util; 037 038import com.kitfox.svg.Font; 039import com.kitfox.svg.FontFace; 040import com.kitfox.svg.Glyph; 041import com.kitfox.svg.MissingGlyph; 042import java.awt.Canvas; 043import java.awt.FontMetrics; 044import java.awt.font.FontRenderContext; 045import java.awt.font.GlyphMetrics; 046import java.awt.font.GlyphVector; 047import java.util.HashMap; 048 049/** 050 * 051 * @author kitfox 052 */ 053public class FontSystem extends Font 054{ 055 java.awt.Font sysFont; 056 FontMetrics fm; 057 058 HashMap glyphCache = new HashMap(); 059 060 public FontSystem(String fontFamily, int fontStyle, int fontWeight, int fontSize) 061 { 062 int style; 063 switch (fontStyle) 064 { 065 case com.kitfox.svg.Text.TXST_ITALIC: 066 style = java.awt.Font.ITALIC; 067 break; 068 default: 069 style = java.awt.Font.PLAIN; 070 break; 071 } 072 073 int weight; 074 switch (fontWeight) 075 { 076 case com.kitfox.svg.Text.TXWE_BOLD: 077 case com.kitfox.svg.Text.TXWE_BOLDER: 078 weight = java.awt.Font.BOLD; 079 break; 080 default: 081 weight = java.awt.Font.PLAIN; 082 break; 083 } 084 sysFont = new java.awt.Font(fontFamily, style | weight, (int) fontSize); 085 086 Canvas c = new Canvas(); 087 fm = c.getFontMetrics(sysFont); 088 089 FontFace face = new FontFace(); 090 face.setAscent(fm.getAscent()); 091 face.setDescent(fm.getDescent()); 092 face.setUnitsPerEm(fm.charWidth('M')); 093 setFontFace(face); 094 } 095 096 public MissingGlyph getGlyph(String unicode) 097 { 098 FontRenderContext frc = new FontRenderContext(null, true, true); 099 GlyphVector vec = sysFont.createGlyphVector(frc, unicode); 100 101 Glyph glyph = (Glyph)glyphCache.get(unicode); 102 if (glyph == null) 103 { 104 glyph = new Glyph(); 105 glyph.setPath(vec.getGlyphOutline(0)); 106 107 GlyphMetrics gm = vec.getGlyphMetrics(0); 108 glyph.setHorizAdvX((int)gm.getAdvanceX()); 109 glyph.setVertAdvY((int)gm.getAdvanceY()); 110 glyph.setVertOriginX(0); 111 glyph.setVertOriginY(0); 112 113 glyphCache.put(unicode, glyph); 114 } 115 116 return glyph; 117 } 118 119 120}