/*
Copyright 2002-2003 The Apache Software Foundation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package org.apache.batik.gvt.flow;
import java.awt.font.FontRenderContext;
import java.awt.font.TextAttribute;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.apache.batik.gvt.font.FontFamilyResolver;
import org.apache.batik.gvt.font.GVTFont;
import org.apache.batik.gvt.font.GVTFontFamily;
import org.apache.batik.gvt.font.GVTLineMetrics;
import org.apache.batik.gvt.font.UnresolvedFontFamily;
public class BlockInfo {
public final static int ALIGN_START = 0;
public final static int ALIGN_MIDDLE = 1;
public final static int ALIGN_END = 2;
public final static int ALIGN_FULL = 3;
protected float top;
protected float right;
protected float bottom;
protected float left;
protected float indent;
protected int alignment;
protected float lineHeight;
protected List fontFamilyList;
protected Map fontAttrs;
protected float ascent=-1;
protected float descent=-1;
protected boolean flowRegionBreak;
public BlockInfo(float top, float right, float bottom, float left,
float indent, int alignment, float lineHeight,
List fontFamilyList, Map fontAttrs,
boolean flowRegionBreak) {
this.top = top;
this.right = right;
this.bottom = bottom;
this.left = left;
this.indent = indent;
this.alignment = alignment;
this.lineHeight = lineHeight;
this.fontFamilyList = fontFamilyList;
this.fontAttrs = fontAttrs;
this.flowRegionBreak = flowRegionBreak;
}
public BlockInfo(float margin, int alignment) {
setMargin(margin);
this.indent = 0;
this.alignment = alignment;
this.flowRegionBreak = false;
}
public void setMargin(float margin) {
this.top = margin;
this.right = margin;
this.bottom = margin;
this.left = margin;
}
public void initLineInfo(FontRenderContext frc) {
float fontSize = 12;
Float fsFloat = (Float)fontAttrs.get(TextAttribute.SIZE);
if (fsFloat != null)
fontSize = fsFloat.floatValue();
Iterator i = fontFamilyList.iterator();
while (i.hasNext()) {
GVTFontFamily fontFamily = (GVTFontFamily)i.next();
if (fontFamily instanceof UnresolvedFontFamily) {
fontFamily = FontFamilyResolver.resolve
((UnresolvedFontFamily)fontFamily);
}
if (fontFamily == null) continue;
GVTFont font = fontFamily.deriveFont(fontSize, fontAttrs);
GVTLineMetrics lm = font.getLineMetrics("", frc);
this.ascent = lm.getAscent();
this.descent = lm.getDescent();
break;
}
if (ascent == -1) {
ascent = fontSize * .8f;
descent = fontSize * .2f;
}
}
public float getTopMargin() { return top; }
public float getRightMargin() { return right; }
public float getBottomMargin() { return bottom; }
public float getLeftMargin() { return left; }
public float getIndent() { return indent; }
public int getTextAlignment() { return alignment; }
public float getLineHeight() { return lineHeight; }
public List getFontFamilyList() { return fontFamilyList; }
public Map getFontAttrs() { return fontAttrs; }
public float getAscent() { return ascent; }
public float getDescent() { return descent; }
public boolean isFlowRegionBreak() { return flowRegionBreak; }
}