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/* $RCSfile$
 * $Author: hansonr $
 * $Date: 2013-10-30 13:47:37 -0500 (Wed, 30 Oct 2013) $
 * $Revision: 18874 $
 *
 * Copyright (C) 2003-2005  Miguel, Jmol Development, www.jmol.org
 *
 * Contact: [email protected]
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 */
package javajs.awt;


import javajs.api.FontManager;
import javajs.util.AU;


/**
 *

* Provides font support using a byte fid * (Font ID) as an index into font table. *

*

* Supports standard font faces, font styles, and font sizes. *

* * @author Miguel, [email protected] */ final public class Font { public final byte fid; public final String fontFace; public final String fontStyle; public final float fontSizeNominal; public final int idFontFace; public final int idFontStyle; public final float fontSize; public final Object font; private final Object fontMetrics; private FontManager manager; private int ascent; private int descent; private boolean isBold; private boolean isItalic; private Font(FontManager manager, byte fid, int idFontFace, int idFontStyle, float fontSize, float fontSizeNominal, Object graphics) { this.manager = manager; this.fid = fid; this.fontFace = fontFaces[idFontFace]; this.fontStyle = fontStyles[idFontStyle]; this.idFontFace = idFontFace; this.idFontStyle = idFontStyle; this.fontSize = fontSize; this.isBold = (idFontStyle & FONT_STYLE_BOLD) == FONT_STYLE_BOLD; this.isItalic = (idFontStyle & FONT_STYLE_ITALIC) == FONT_STYLE_ITALIC; this.fontSizeNominal = fontSizeNominal; font = manager.newFont(fontFaces[idFontFace], isBold, isItalic, fontSize); fontMetrics = manager.getFontMetrics(this, graphics); descent = manager.getFontDescent(fontMetrics); ascent = manager.getFontAscent(fontMetrics); //System.out.println("font3d constructed for fontsizeNominal=" + fontSizeNominal + " and fontSize=" + fontSize); } //////////////////////////////////////////////////////////////// private final static int FONT_ALLOCATION_UNIT = 8; private static int fontkeyCount = 1; private static int[] fontkeys = new int[FONT_ALLOCATION_UNIT]; private static Font[] font3ds = new Font[FONT_ALLOCATION_UNIT]; public static Font getFont3D(byte fontID) { return font3ds[fontID & 0xFF]; } public static synchronized Font createFont3D(int fontface, int fontstyle, float fontsize, float fontsizeNominal, FontManager manager, Object graphicsForMetrics) { //if (graphicsForMetrics == null) // return null; if (fontsize > 0xFF) fontsize = 0xFF; int fontsizeX16 = ((int) fontsize) << 4; int fontkey = ((fontface & 3) | ((fontstyle & 3) << 2) | (fontsizeX16 << 4)); // watch out for race condition here! for (int i = fontkeyCount; --i > 0;) if (fontkey == fontkeys[i] && font3ds[i].fontSizeNominal == fontsizeNominal) return font3ds[i]; int fontIndexNext = fontkeyCount++; if (fontIndexNext == fontkeys.length) fontkeys = AU.arrayCopyI(fontkeys, fontIndexNext + FONT_ALLOCATION_UNIT); font3ds = (Font[]) AU.arrayCopyObject(font3ds, fontIndexNext + FONT_ALLOCATION_UNIT); Font font3d = new Font(manager, (byte) fontIndexNext, fontface, fontstyle, fontsize, fontsizeNominal, graphicsForMetrics); // you must set the font3d before setting the fontkey in order // to prevent a race condition with getFont3D font3ds[fontIndexNext] = font3d; fontkeys[fontIndexNext] = fontkey; return font3d; } public final static int FONT_FACE_SANS = 0; public final static int FONT_FACE_SERIF = 1; public final static int FONT_FACE_MONO = 2; private final static String[] fontFaces = {"SansSerif", "Serif", "Monospaced", ""}; public final static int FONT_STYLE_PLAIN = 0; public final static int FONT_STYLE_BOLD = 1; public final static int FONT_STYLE_ITALIC = 2; public final static int FONT_STYLE_BOLDITALIC = 3; private final static String[] fontStyles = {"Plain", "Bold", "Italic", "BoldItalic"}; public static int getFontFaceID(String fontface) { return ("Monospaced".equalsIgnoreCase(fontface) ? FONT_FACE_MONO : "Serif".equalsIgnoreCase(fontface) ? FONT_FACE_SERIF : FONT_FACE_SANS); } public static int getFontStyleID(String fontstyle) { for (int i = 4; --i >= 0; ) if (fontStyles[i].equalsIgnoreCase(fontstyle)) return i; return -1; } public int getAscent() { return ascent; } public int getDescent() { return descent; } public int getHeight() { return getAscent() + getDescent(); } public Object getFontMetrics() { return fontMetrics; } public int stringWidth(String text) { return manager.fontStringWidth(this, text); } public String getInfo() { return fontSizeNominal + " " + fontFace + " " + fontStyle; } }




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