/* * Copyright (c) 1998, 2003, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. *//* * * (C) Copyright IBM Corp. 1998-2003 All Rights Reserved */ package sun.font; import java.awt.Font; import java.awt.font.FontRenderContext;import java.awt.font.LineMetrics;import java.text.Bidi; /** * A factory for text labels. Basically this just holds onto the stuff that * doesn't change-- the render context, context, and bidi info for the context-- and gets * called for each subrange you want to create. * * @see Font * @see FontRenderContext * @see GlyphVector * @see TextLabel * @see ExtendedTextLabel * @see Bidi * @see TextLayout */ public class TextLabelFactory { private FontRenderContext frc; private char[] text; private Bidi bidi; private Bidi lineBidi; private int flags; private int lineStart; private int lineLimit; /** * Initialize a factory to produce glyph arrays. * @param frc the FontRenderContext to use for the arrays to be produced. * @param text the text of the paragraph. * @param bidi the bidi information for the paragraph text, or null if the * entire text is left-to-right text. */ public TextLabelFactory(FontRenderContext frc, char[] text, Bidi bidi, int flags) { this.frc = frc; this.text = text; this.bidi = bidi; this.flags = flags; this.lineBidi = bidi; this.lineStart = 0; this.lineLimit = text.length; } public FontRenderContext getFontRenderContext() { return frc; } public char[] getText() { return text; } public Bidi getParagraphBidi() { return bidi; } public Bidi getLineBidi() { return lineBidi; } public int getLayoutFlags() { return flags; } public int getLineStart() { return lineStart; } public int getLineLimit() { return lineLimit; } /** * Set a line context for the factory. Shaping only occurs on this line. * Characters are ordered as they would appear on this line. * @param lineStart the index within the text of the start of the line. * @param lineLimit the index within the text of the limit of the line. */ public void setLineContext(int lineStart, int lineLimit) { this.lineStart = lineStart; this.lineLimit = lineLimit; if (bidi != null) { lineBidi = bidi.createLineBidi(lineStart, lineLimit); } } /** * Create an extended glyph array for the text between start and limit. * * @param font the font to use to generate glyphs and character positions. * @param start the start of the subrange for which to create the glyph array * @param limit the limit of the subrange for which to create glyph array * * Start and limit must be within the bounds of the current line. If no * line context has been set, the entire text is used as the current line. * The text between start and limit will be treated as though it all has * the same bidi level (and thus the same directionality) as the character * at start. Clients should ensure that all text between start and limit * has the same bidi level for the current line. */ public ExtendedTextLabel createExtended(Font font, CoreMetrics lm, Decoration decorator, int start, int limit) { if (start >= limit || start < lineStart || limit > lineLimit) { throw new IllegalArgumentException("bad start: " + start + " or limit: " + limit); } int level = lineBidi == null ? 0 : lineBidi.getLevelAt(start - lineStart); int linedir = (lineBidi == null || lineBidi.baseIsLeftToRight()) ? 0 : 1; int layoutFlags = flags & ~0x9; // remove bidi, line direction flags if ((level & 0x1) != 0) layoutFlags |= 1; // rtl if ((linedir & 0x1) != 0) layoutFlags |= 8; // line rtl TextSource source = new StandardTextSource(text, start, limit - start, lineStart, lineLimit - lineStart, level, layoutFlags, font, frc, lm); return new ExtendedTextSourceLabel(source, decorator); } /** * Create a simple glyph array for the text between start and limit. * * @param font the font to use to generate glyphs and character positions. * @param start the start of the subrange for which to create the glyph array * @param limit the limit of the subrange for which to create glyph array */ public TextLabel createSimple(Font font, CoreMetrics lm, int start, int limit) { if (start >= limit || start < lineStart || limit > lineLimit) { throw new IllegalArgumentException("bad start: " + start + " or limit: " + limit); } int level = lineBidi == null ? 0 : lineBidi.getLevelAt(start - lineStart); int linedir = (lineBidi == null || lineBidi.baseIsLeftToRight()) ? 0 : 1; int layoutFlags = flags & ~0x9; // remove bidi, line direction flags if ((level & 0x1) != 0) layoutFlags |= 1; // rtl if ((linedir & 0x1) != 0) layoutFlags |= 8; // line rtl TextSource source = new StandardTextSource(text, start, limit - start, lineStart, lineLimit - lineStart, level, layoutFlags, font, frc, lm); return new TextSourceLabel(source); }}
/*
* Copyright (c) 1998, 2003, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
*
* (C) Copyright IBM Corp. 1998-2003 All Rights Reserved
*/
package sun.font;
import java.awt.Font;
import java.awt.font.FontRenderContext;
import java.awt.font.LineMetrics;
import java.text.Bidi;
/**
* A factory for text labels. Basically this just holds onto the stuff that
* doesn't change-- the render context, context, and bidi info for the context-- and gets
* called for each subrange you want to create.
*
* @see Font
* @see FontRenderContext
* @see GlyphVector
* @see TextLabel
* @see ExtendedTextLabel
* @see Bidi
* @see TextLayout
*/
public class TextLabelFactory {
private FontRenderContext frc;
private char[] text;
private Bidi bidi;
private Bidi lineBidi;
private int flags;
private int lineStart;
private int lineLimit;
/**
* Initialize a factory to produce glyph arrays.
* @param frc the FontRenderContext to use for the arrays to be produced.
* @param text the text of the paragraph.
* @param bidi the bidi information for the paragraph text, or null if the
* entire text is left-to-right text.
*/
public TextLabelFactory(FontRenderContext frc,
char[] text,
Bidi bidi,
int flags) {
this.frc = frc;
this.text = text;
this.bidi = bidi;
this.flags = flags;
this.lineBidi = bidi;
this.lineStart = 0;
this.lineLimit = text.length;
}
public FontRenderContext getFontRenderContext() {
return frc;
}
public char[] getText() {
return text;
}
public Bidi getParagraphBidi() {
return bidi;
}
public Bidi getLineBidi() {
return lineBidi;
}
public int getLayoutFlags() {
return flags;
}
public int getLineStart() {
return lineStart;
}
public int getLineLimit() {
return lineLimit;
}
/**
* Set a line context for the factory. Shaping only occurs on this line.
* Characters are ordered as they would appear on this line.
* @param lineStart the index within the text of the start of the line.
* @param lineLimit the index within the text of the limit of the line.
*/
public void setLineContext(int lineStart, int lineLimit) {
this.lineStart = lineStart;
this.lineLimit = lineLimit;
if (bidi != null) {
lineBidi = bidi.createLineBidi(lineStart, lineLimit);
}
}
/**
* Create an extended glyph array for the text between start and limit.
*
* @param font the font to use to generate glyphs and character positions.
* @param start the start of the subrange for which to create the glyph array
* @param limit the limit of the subrange for which to create glyph array
*
* Start and limit must be within the bounds of the current line. If no
* line context has been set, the entire text is used as the current line.
* The text between start and limit will be treated as though it all has
* the same bidi level (and thus the same directionality) as the character
* at start. Clients should ensure that all text between start and limit
* has the same bidi level for the current line.
*/
public ExtendedTextLabel createExtended(Font font,
CoreMetrics lm,
Decoration decorator,
int start,
int limit) {
if (start >= limit || start < lineStart || limit > lineLimit) {
throw new IllegalArgumentException("bad start: " + start + " or limit: " + limit);
}
int level = lineBidi == null ? 0 : lineBidi.getLevelAt(start - lineStart);
int linedir = (lineBidi == null || lineBidi.baseIsLeftToRight()) ? 0 : 1;
int layoutFlags = flags & ~0x9; // remove bidi, line direction flags
if ((level & 0x1) != 0) layoutFlags |= 1; // rtl
if ((linedir & 0x1) != 0) layoutFlags |= 8; // line rtl
TextSource source = new StandardTextSource(text, start, limit - start, lineStart, lineLimit - lineStart, level, layoutFlags, font, frc, lm);
return new ExtendedTextSourceLabel(source, decorator);
}
/**
* Create a simple glyph array for the text between start and limit.
*
* @param font the font to use to generate glyphs and character positions.
* @param start the start of the subrange for which to create the glyph array
* @param limit the limit of the subrange for which to create glyph array
*/
public TextLabel createSimple(Font font,
CoreMetrics lm,
int start,
int limit) {
if (start >= limit || start < lineStart || limit > lineLimit) {
throw new IllegalArgumentException("bad start: " + start + " or limit: " + limit);
}
int level = lineBidi == null ? 0 : lineBidi.getLevelAt(start - lineStart);
int linedir = (lineBidi == null || lineBidi.baseIsLeftToRight()) ? 0 : 1;
int layoutFlags = flags & ~0x9; // remove bidi, line direction flags
if ((level & 0x1) != 0) layoutFlags |= 1; // rtl
if ((linedir & 0x1) != 0) layoutFlags |= 8; // line rtl
TextSource source = new StandardTextSource(text, start, limit - start, lineStart, lineLimit - lineStart, level, layoutFlags, font, frc, lm);
return new TextSourceLabel(source);
}
}