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/**
* Copyright (C) 2011-2012 The XDocReport Team
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
package org.odftoolkit.odfdom.converter.pdf.internal.stylable;
import java.util.List;
import org.odftoolkit.odfdom.converter.pdf.internal.styles.Style;
import org.odftoolkit.odfdom.converter.pdf.internal.styles.StyleLineHeight;
import org.odftoolkit.odfdom.converter.pdf.internal.styles.StyleParagraphProperties;
import org.odftoolkit.odfdom.converter.pdf.internal.styles.StyleTabStopProperties;
import org.odftoolkit.odfdom.converter.pdf.internal.styles.StyleTextProperties;
import com.lowagie.text.Chunk;
import com.lowagie.text.Element;
import com.lowagie.text.Font;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.draw.DrawInterface;
public class StylableTab
implements IStylableElement, DrawInterface
{
private IStylableContainer parent;
private boolean inTableOfContent;
private Style lastStyleApplied = null;
private Font font = new Font();
private float lineHeight = StylableParagraph.DEFAULT_LINE_HEIGHT;
private boolean lineHeightProportional = true;
private String leaderText = " ";
private Chunk chunk;
public StylableTab( StylableDocument ownerDocument, IStylableContainer parent, boolean inTableOfContent )
{
this.parent = parent;
this.inTableOfContent = inTableOfContent;
}
public void applyStyles( Style style )
{
// iText is not able to handle tab stops - it's an architectural limitation
// we don't know our x coordinate in current line to determine which tab stop to use
// neither we know width of text remaining to the end of current line (to handle tab stop alignment)
// use some heuristics
// translate tabs to iText separators in table of content
// most often it has one tab stop right aligned to the end of line
// in ordinary text replace tab by space, the results may be not as expected
this.lastStyleApplied = style;
StyleTextProperties textProperties = style.getTextProperties();
if ( textProperties != null )
{
// Font
Font font = textProperties.getFont();
if ( font != null )
{
this.font = font;
}
}
StyleParagraphProperties paragraphProperties = style.getParagraphProperties();
if ( paragraphProperties != null )
{
// line height
StyleLineHeight lineHeight = paragraphProperties.getLineHeight();
if ( lineHeight != null && lineHeight.getLineHeight() != null )
{
this.lineHeight = lineHeight.getLineHeight();
this.lineHeightProportional = lineHeight.isLineHeightProportional();
}
}
List tabStopPropertiesList = style.getTabStopPropertiesList();
if ( tabStopPropertiesList != null && !tabStopPropertiesList.isEmpty() )
{
// we don't know which one to use, so use the first one
StyleTabStopProperties tabStopProperties = tabStopPropertiesList.get( 0 );
String leaderText = tabStopProperties.getLeaderText();
if ( leaderText != null )
{
this.leaderText = leaderText;
}
}
}
public Style getLastStyleApplied()
{
return lastStyleApplied;
}
public IStylableContainer getParent()
{
return parent;
}
public Element getElement()
{
if ( chunk == null )
{
if ( inTableOfContent )
{
chunk = new Chunk( this );
}
else
{
chunk = new Chunk( leaderText, font );
}
}
return chunk;
}
public void draw( PdfContentByte canvas, float llx, float lly, float urx, float ury, float y )
{
if ( font.getBaseFont() != null && font.getSize() > 0.0 && leaderText.trim().length() > 0 )
{
// create text to fit tab width
float width = urx - llx;
String txt = "";
while ( true )
{
Chunk tmp = new Chunk( txt + leaderText, font );
if ( tmp.getWidthPoint() <= width )
{
txt += leaderText;
}
else
{
break;
}
}
// compute x offset - as if tab were right aligned
float xoffset = width - new Chunk( txt, font ).getWidthPoint();
// compute y offset - use StylableParagraph mechanism
Chunk tmp = StylableParagraph.createAdjustedChunk( txt, font, lineHeight, lineHeightProportional );
float yoffset = tmp.getTextRise();
// draw
canvas.saveState();
canvas.beginText();
canvas.setFontAndSize( font.getBaseFont(), font.getSize() );
canvas.showTextAligned( Element.ALIGN_LEFT, txt, llx + xoffset, y + yoffset, 0.0f );
canvas.endText();
canvas.restoreState();
}
}
}