X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=bundles%2Forg.simantics.document.linking.ui%2Fsrc%2Forg%2Fsimantics%2Fdocument%2Flinking%2Freport%2Fpdf%2FPDFTable.java;h=902d27159d219ac79c098cbe868b9605d4821b8a;hb=refs%2Fchanges%2F55%2F2055%2F1;hp=8f9dafadf3c8587a3fdc1f7f897134d518ce919d;hpb=969bd23cab98a79ca9101af33334000879fb60c5;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/report/pdf/PDFTable.java b/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/report/pdf/PDFTable.java
index 8f9dafadf..902d27159 100644
--- a/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/report/pdf/PDFTable.java
+++ b/bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/report/pdf/PDFTable.java
@@ -1,667 +1,667 @@
-package org.simantics.document.linking.report.pdf;
-
-import java.awt.Color;
-import java.awt.Font;
-import java.awt.Graphics2D;
-import java.awt.Shape;
-import java.awt.font.LineBreakMeasurer;
-import java.awt.font.TextAttribute;
-import java.awt.font.TextLayout;
-import java.net.URL;
-import java.text.AttributedCharacterIterator;
-import java.text.AttributedString;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.Hashtable;
-import java.util.List;
-
-import org.simantics.document.linking.report.Document.TextSize;
-import org.simantics.document.linking.report.Table;
-import org.simantics.document.linking.report.TableColumn;
-import org.simantics.document.linking.report.TableColumn.Alignment;
-import org.simantics.document.linking.report.TableRow;
-import org.simantics.document.linking.report.TextItem;
-import org.simantics.document.linking.report.URLItem;
-
-import com.lowagie.text.pdf.PdfAction;
-
-
-public class PDFTable implements Table, PDFElement {
-	PDFDocument writer;
-	PDFPageStream stream;
-	PDFPage startPage;
-	
-	int currentLine = 0;
-	
-	List<TableColumn> columns = new ArrayList<TableColumn>();
-	List<String> columnNames = new ArrayList<String>();
-	List<Integer> columnSizes = new ArrayList<Integer>();
-	List<Integer> columnPositions = new ArrayList<Integer>();
-	
-	TextItem title = null;
-	
-	boolean headerVisible = true;
-	private boolean linesVisible = true;
-	private boolean linesPrevVisible = true;
-	boolean clipText = false;
-	
-	int textOffsetX = 2;
-	int textOffsetY = 2;
-	
-	public PDFTable(PDFDocument writer, PDFPageStream stream) {
-		this.writer = writer;
-		this.stream = stream;
-		this.startPage = stream.getCurrentPage();
-		
-	}
-	
-	public PDFTable(PDFTable table) {
-		this.writer = table.writer;
-		this.stream = table.stream;
-		this.startPage = stream.getCurrentPage();
-		this.columns.addAll(table.columns);
-		this.columnNames.addAll(table.columnNames);
-		
-		updateColumnPositions();
-	}
-	
-	
-	@Override
-	public PDFPage getPage() {
-		return startPage;
-	}
-	
-	/* (non-Javadoc)
-	 * @see org.simantics.document.linking.report.Table#addColumn(java.lang.String, double)
-	 */
-	@Override
-	public TableColumn addColumn(String name, double width) {
-		TableColumn tc = new TableColumn(name, width);
-		columns.add(tc);
-		columnNames.add(name);
-		
-		updateColumnPositions();
-		return tc;
-	}
-	
-	private void updateColumnPositions() {
-		int pos = 0;
-		columnSizes.clear();
-		columnPositions.clear();
-		for (TableColumn c : columns) {
-			int size = (int)(c.getWidth()*stream.getContentWidth());
-			columnSizes.add(size);
-			columnPositions.add(pos);
-			pos+=size;
-		}
-	}
-	
-	@Override
-	public List<TableColumn> getColumns() {
-		return columns;
-	}
-	
-	@Override
-	public boolean isLinesVisible() {
-		return linesVisible;
-	}
-	
-	@Override
-	public void setLinesVisible(boolean b) {
-		if (this.linesVisible == b)
-			return;
-		this.linesPrevVisible = linesVisible;
-		this.linesVisible = b;
-	}
-	
-	@Override
-	public boolean isHeaderVisible() {
-		return headerVisible;
-	}
-	
-	@Override
-	public void setHeaderVisible(boolean b) {
-		this.headerVisible = b;
-	}
-	
-	private boolean isFirstLine() {
-		return currentLine == 0 || stream.getCurrentPage().currentLine == 1;
-	}
-	
-	@Override
-	public void setTitle(String title) {
-		try {
-			this.title = writer.newItem(TextItem.class);
-			this.title.setText(title);
-		} catch (Exception e) {
-			
-		}
-	}
-	
-	@Override
-	public void setTitle(TextItem title){
-		this.title = title;
-	}
-	
-	/* (non-Javadoc)
-	 * @see org.simantics.document.linking.report.Table#writeRow(java.lang.String[])
-	 */
-	@Override
-	public TableRow writeRow(String... line) throws Exception{
-		List<String> list = new ArrayList<String>(line.length);
-		for (String s : line)
-			list.add(s);
-		return writeRow(list);
-	}
-	
-	/* (non-Javadoc)
-	 * @see org.simantics.document.linking.report.Table#writeRow(java.util.List)
-	 */
-	@Override
-	public TableRow writeRow(List<String> line) throws Exception{
-		if (isFirstLine())
-			writeHeader();
-		return _writeRow(line);
-	}
-	
-	@Override
-	public TableRow writeRowItem(TextItem... line) throws Exception {
-		List<TextItem> list = new ArrayList<TextItem>(line.length);
-		for (TextItem s : line)
-			list.add(s);
-		return writeRowItem(list);
-	}
-	
-	@Override
-	public TableRow writeRowItem(List<TextItem> line) throws Exception {
-		if (isFirstLine())
-			writeHeader();
-		return _writeRow2(line);
-	}
-	
-	private TableRow _writeRow(List<String> line) throws Exception {
-		int h = getTextHeight();
-		int ht = getTopHeight();
-		int hb = getBottomHeight();
-		PDFPage page = getCurrentPage();
-		Graphics2D g2d = page.g2d;
-		Shape clip = g2d.getClip();
-		
-		if (clipText) {
-			for (int i = 0; i < line.size(); i++) {
-				if (line.get(i) == null)
-					continue;
-				g2d.setClip(columnPositions.get(i),ht-1,columnSizes.get(i),hb-ht+2);
-				g2d.drawString(line.get(i), columnPositions.get(i)+textOffsetX, h);
-			}
-			g2d.setClip(clip);
-			if (linesVisible) {
-				for (int i = 0; i < line.size(); i++) {
-					g2d.drawLine(columnPositions.get(i), ht, columnPositions.get(i), hb);
-				}
-				if (isFirstLine() || !linesPrevVisible) {
-					g2d.drawLine(0, ht, stream.contentWidth, ht);
-					linesPrevVisible = true;
-				}
-				g2d.drawLine(stream.contentWidth, ht, stream.contentWidth, hb);
-				g2d.drawLine(0, hb, stream.contentWidth, hb);
-			}
-			currentLine++;
-			page.currentLine++;
-			page.availableLines--;
-			page.currentPixel += getLineHeight();
-		} else {
-			PositionedRow row = _getRow(line);
-			if (stream.contentHeight-page.currentPixel < row.reservedSpace) {
-				stream.nextPage();
-				page = getCurrentPage();
-				g2d = page.g2d;
-				writeHeader();
-				row = _getRow(line);
-			}
-			row.render(g2d);
-			currentLine+= row.realLines;
-			page.currentLine+= row.realLines;
-			page.currentPixel += row.reservedSpace;
-			page.estimateAvailableLines();
-		}
-		
-		stream.checkNextPage();
-		return new PDFTableRow();
-	}
-	
-	private TableRow _writeRow2(List<TextItem> line) throws Exception {
-		int h = getTextHeight();
-		int ht = getTopHeight();
-		int hb = getBottomHeight();
-		PDFPage page = getCurrentPage();
-		Graphics2D g2d = page.g2d;
-		Shape clip = g2d.getClip();
-		
-		if (clipText) {
-			for (int i = 0; i < line.size(); i++) {
-				TextItem text = line.get(i);
-				if (text == null)
-					continue;
-				g2d.setClip(columnPositions.get(i),ht,columnSizes.get(i),hb-ht);
-				g2d.drawString(text.getText(), columnPositions.get(i)+textOffsetX, h);
-				if (text instanceof URLItem) {
-					URL url = ((URLItem)text).getURL();
-					if (url != null) {
-						addLink(url, columnPositions.get(i),ht,columnSizes.get(i),hb-ht);
-					}
-				}
-			}
-			g2d.setClip(clip);
-			if (linesVisible) {
-				for (int i = 0; i < line.size(); i++) {
-					g2d.drawLine(columnPositions.get(i), ht, columnPositions.get(i), hb);
-				}
-				if (isFirstLine() || !linesPrevVisible) {
-					g2d.drawLine(0, ht, stream.contentWidth, ht);
-					linesPrevVisible = true;
-				}
-				g2d.drawLine(stream.contentWidth, ht, stream.contentWidth, hb);
-				g2d.drawLine(0, hb, stream.contentWidth, hb);
-			}
-			currentLine++;
-			page.currentLine++;
-			page.availableLines--;
-			page.currentPixel += getLineHeight();
-		} else {
-			PositionedRow row = _getRow2(line);
-			if (stream.contentHeight-page.currentPixel < row.reservedSpace) {
-				stream.nextPage();
-				page = getCurrentPage();
-				g2d = page.g2d;
-				writeHeader();
-				row = _getRow2(line);
-			}
-			row.render(g2d);
-			currentLine+= row.realLines;
-			page.currentLine+= row.realLines;
-			page.currentPixel += row.reservedSpace;
-			page.estimateAvailableLines();
-		}
-		
-		stream.checkNextPage();
-		return new PDFTableRow();
-	}
-	
-	void writeLine(String line) throws Exception{
-		writeLine(line, 0);
-	}
-	
-	void writeLine(TextItem line) throws Exception{
-		writeLine(line, 0);
-	}
-	
-	private void writeHeader() throws Exception{
-		if (headerVisible) {
-			TextSize s = currentTextSize;
-			setTextSize(TextSize.MEDIUM);
-			if (title != null) {
-				boolean b = linesVisible;
-				setLinesVisible(false);
-				writeLine(title);
-				setLinesVisible(b);
-			}
-			_writeRow(columnNames);
-			setTextSize(s);
-		}
-	}
-	
-	void writeLine(String line, int x) throws Exception{
-		int h = getTextHeight();
-		int ht = getTopHeight();
-		int hb = getBottomHeight();
-		PDFPage page = getCurrentPage();
-		Graphics2D g2d = page.g2d;
-		g2d.drawString(line, x+textOffsetX, h);
-		if (linesVisible) {
-			if (isFirstLine() || !linesPrevVisible) {
-				g2d.drawLine(0, ht, stream.contentWidth, ht);
-				linesPrevVisible = true;
-			}
-			g2d.drawLine(0, ht, 0, hb);
-			g2d.drawLine(stream.contentWidth, ht, stream.contentWidth, hb);
-			g2d.drawLine(0, hb, stream.contentWidth, hb);
-		}
-		currentLine++;
-		page.currentLine++;
-		page.availableLines--;
-		page.currentPixel += getLineHeight();
-		stream.checkNextPage();
-	}
-	
-	void writeLine(TextItem line, int x) throws Exception{
-		int h = getTextHeight();
-		int ht = getTopHeight();
-		int hb = getBottomHeight();
-		PDFPage page = getCurrentPage();
-		Graphics2D g2d = page.g2d;
-		g2d.drawString(line.getText(), x+textOffsetX, h);
-		if (linesVisible) {
-			if (isFirstLine() || !linesPrevVisible) {
-				g2d.drawLine(0, ht, stream.contentWidth, ht);
-				linesPrevVisible = true;
-			}
-			g2d.drawLine(0, ht, 0, hb);
-			g2d.drawLine(stream.contentWidth, ht, stream.contentWidth, hb);
-			g2d.drawLine(0, hb, stream.contentWidth, hb);
-		}
-		if (line instanceof URLItem) {
-			URL url = ((URLItem)line).getURL();
-			if (url != null) {
-				addLink(url, 0,ht,stream.contentWidth,hb-ht);
-			}
-		}
-		currentLine++;
-		page.currentLine++;
-		page.availableLines--;
-		page.currentPixel += getLineHeight();
-		stream.checkNextPage();
-	}
-	
-	int getTopHeight() {
-		return getTopHeight(currentLine);
-	}
-	
-	int getTopHeight(int line) {
-		return (line-currentLine)*getLineHeight()+getCurrentPage().currentPixel;
-	}
-	
-	int getTextHeight() {
-		PDFPage page = getCurrentPage();
-		return page.currentPixel+getLineHeight()-page.fm.getDescent()-textOffsetY;
-	}
-	
-	PDFPage getCurrentPage() {
-		return stream.getCurrentPage();
-	}
-	
-	int getBottomHeight() {
-		return getBottomHeight(currentLine);
-	}
-	
-	protected int getLineHeight() {
-		return getCurrentPage().fm.getHeight()+textOffsetY;
-	}
-	
-	private int getBottomHeight(int line) {
-		return (line-currentLine+1)*getLineHeight()+getCurrentPage().currentPixel;
-	}
-	
-	public int getAvailableLines() {
-		PDFPage page = getCurrentPage();
-		int contentHeight = stream.contentHeight;
-		int pixelY = page.currentPixel;
-		return (int)Math.floor((contentHeight-pixelY)/getLineHeight());
-	}
-	
-	private TextSize currentTextSize = TextSize.SMALL;
-	
-	@Override
-	public void setTextSize(TextSize size) {
-		stream.getCurrentPage().setFont(writer.fonts.get(size));
-		currentTextSize = size;
-	}
-	
-	@Override
-	public TextSize getTextSize() {
-		return currentTextSize;
-	}
-	
-	private PositionedRow _getRow(List<String> line) {
-		PositionedRow row = new PositionedRow();
-		int h = getTextHeight();
-		int realLines = 1;
-		int reservedSpace = 0;
-		List<List<PositionedText>> cells = new ArrayList<List<PositionedText>>(line.size());
-		if (line.size() > 1) {
-			for (int i = 0; i < line.size(); i++) {
-				String text = line.get(i);
-				int availableSize = columnSizes.get(i)-textOffsetX;
-				if (text != null && text.length() > 0) {
-					List<PositionedText> pt = getText(text,  columnPositions.get(i)+textOffsetX, h,availableSize, columns.get(i).getAlignment());
-					cells.add(pt);
-					reservedSpace = Math.max(reservedSpace, getResevedSpace(pt)+getLineHeight());
-					realLines = Math.max(realLines, getLineSpace(pt));
-				} else {
-					cells.add(Collections.<PositionedText> emptyList());
-					reservedSpace = Math.max(reservedSpace, getLineHeight());
-				}
-			}
-		} else {
-			String text = line.get(0);
-			int availableSize = stream.contentWidth;
-			if (text != null && text.length() > 0) {
-				List<PositionedText> pt = getText(text,  textOffsetX, h,availableSize, columns.get(0).getAlignment());
-				cells.add(pt);
-				reservedSpace = Math.max(reservedSpace, getResevedSpace(pt)+getLineHeight());
-				realLines = Math.max(realLines, getLineSpace(pt));
-			} else {
-				cells.add(Collections.<PositionedText> emptyList());
-				reservedSpace = Math.max(reservedSpace, getLineHeight());
-			}
-		}
-		row.reservedSpace = reservedSpace;
-		row.startLine = currentLine;
-		row.realLines = realLines;
-		row.cells = cells;
-		return row;
-	}
-	
-	private PositionedRow _getRow2(List<TextItem> line) {
-		PositionedRow row = new PositionedRow();
-		int h = getTextHeight();
-		int realLines = 1;
-		int reservedSpace = 0;
-		row.cells = new ArrayList<List<PositionedText>>(line.size());
-		row.urls = new ArrayList<URL>();
-		if (line.size() > 1) {
-			for (int i = 0; i < line.size(); i++) {
-				TextItem item =line.get(i); 
-				
-				int availableSize = columnSizes.get(i)-textOffsetX;
-				if (item != null && item.getText().length() > 0) {
-					String text = item.getText();
-					List<PositionedText> pt = getText(text,  columnPositions.get(i)+textOffsetX, h,availableSize, columns.get(i).getAlignment());
-					row.cells.add(pt);
-					reservedSpace = Math.max(reservedSpace, getResevedSpace(pt)+getLineHeight());
-					realLines = Math.max(realLines, getLineSpace(pt));
-				} else {
-					row.cells.add(Collections.<PositionedText> emptyList());
-					reservedSpace = Math.max(reservedSpace, getLineHeight());
-				}
-				if (item instanceof URLItem) {
-					row.urls.add(((URLItem)item).getURL());
-				} else {
-					row.urls.add(null);
-				}
-			}
-		
-		} else {
-			String text = line.get(0).getText();
-			int availableSize = stream.contentWidth;
-			if (text != null && text.length() > 0) {
-				List<PositionedText> pt = getText(text,  textOffsetX, h,availableSize, columns.get(0).getAlignment());
-				row.cells.add(pt);
-				reservedSpace = Math.max(reservedSpace, getResevedSpace(pt)+getLineHeight());
-				realLines = Math.max(realLines, getLineSpace(pt));
-			} else {
-				row.cells.add(Collections.<PositionedText> emptyList());
-				reservedSpace = Math.max(reservedSpace, getLineHeight());
-			}
-		}
-		row.reservedSpace = reservedSpace;
-		row.startLine = currentLine;
-		row.realLines = realLines;
-		return row;
-	}
-	
-	private int getResevedSpace(List<PositionedText> pt) {
-		float sy = pt.get(0).drawPosY;
-		float ey = pt.get(pt.size()-1).drawPosY;
-		return (int)Math.ceil(ey-sy);
-	}
-	/**
-	 * Usually lines of multi-line cells consume less space than the maximum line height (FontMetrics). This method calculates the exact amount of lines required by a cell. 
-	 * @param pt
-	 * @return
-	 */
-	private int getLineSpace(List<PositionedText> pt) {
-		if (pt.size() < 2)
-			return 1;
-		
-		return (int)(getResevedSpace(pt)/getLineHeight())+1;
-	}
-	
-	private class PositionedRow {
-		int startLine;
-		int realLines;
-		int reservedSpace;
-		List<List<PositionedText>> cells;
-		List<URL> urls;
-		
-		void render(Graphics2D g) {
-			int ht = getTopHeight(startLine);
-			int hb = ht +reservedSpace;
-			if (cells.size() > 0) {
-				for (int i = 0; i < cells.size(); i++) {
-					List<PositionedText> ptl = cells.get(i);
-					for (PositionedText pt : ptl)
-						pt.render(g);
-					if (urls != null) {
-						URL url = urls.get(i);
-						if (url != null) {
-							addLink(url, columnPositions.get(i),ht,columnSizes.get(i),hb-ht);
-						}
-					}
-				}
-			} 
-			if (linesVisible) {
-				if (cells.size() > 0) {
-					for (int i = 0; i < cells.size(); i++) {
-						g.drawLine(columnPositions.get(i), ht, columnPositions.get(i), hb);
-					}
-				} else {
-					g.drawLine(columnPositions.get(0), ht, columnPositions.get(0), hb);
-				}
-				if (isFirstLine() || !linesPrevVisible) {
-					g.drawLine(0, ht, stream.contentWidth, ht);
-					linesPrevVisible = true;
-				}
-				g.drawLine(stream.contentWidth, ht, stream.contentWidth, hb);
-				g.drawLine(0, hb, stream.contentWidth, hb);
-				
-			}
-		}
-	}
-	
-	private void addLink(URL url, int x, int y, int w, int h) {
-		PDFPage page = getCurrentPage();
-		float fx = +page.stream.marginLeft + x;
-		float fy = -page.stream.marginTop + page.template.getHeight() - y;
-		page.template.setAction(new PdfAction(url), fx, fy-h, fx+w, fy);
-	}
-	
-	private List<PositionedText> getText(String text, int x, int y, int cellWidth, Alignment alignment) {
-		List<PositionedText> result = new ArrayList<PositionedText>();
-		Hashtable<TextAttribute, Object> map = new Hashtable<TextAttribute, Object>();
-		PDFPage page = getCurrentPage();
-		Font font = page.getFont();
-		for (TextAttribute a : font.getAttributes().keySet()) {
-			Object v = font.getAttributes().get(a);
-			if (v != null)
-				map.put(a, v);
-		}
-//		map.putAll(font.getAttributes());
-		map.put(TextAttribute.FOREGROUND, Color.black);
-
-		AttributedString attributedText = new AttributedString(	text, map);
-
-		AttributedCharacterIterator paragraph = attributedText.getIterator();
-		int paragraphStart = paragraph.getBeginIndex();
-		int paragraphEnd = paragraph.getEndIndex();
-		LineBreakMeasurer lineMeasurer = new LineBreakMeasurer(paragraph, page.frc);
-		lineMeasurer.setPosition(paragraphStart);
-		
-		// Get lines until the entire paragraph has been displayed.
-        int next, limit, charat, position = 0;
-        int drawPosY = y;
-        while ((position = lineMeasurer.getPosition()) < paragraphEnd) {
-
-            // Find possible line break and set it as a limit to the next layout
-            next = lineMeasurer.nextOffset(cellWidth);
-            limit = next;
-            charat = text.indexOf(System.getProperty("line.separator"),position+1);
-            if(charat < next && charat != -1){
-               limit = charat;
-            }
-
-            // Retrieve next layout. A cleverer program would also cache
-            // these layouts until the component is re-sized.
-            TextLayout layout = lineMeasurer.nextLayout(cellWidth, limit, false);
-
-	        // Compute pen x position. If the paragraph is right-to-left we
-	        // will align the TextLayouts to the right edge of the panel.
-	        // Note: this won't occur for the English text in this sample.
-	        // Note: drawPosX is always where the LEFT of the text is placed.
-	        float drawPosX = 0;
-	        switch (alignment) {
-	        	case LEFT: 
-	        		drawPosX = layout.isLeftToRight() ? 0 : cellWidth - layout.getAdvance();
-	        		break;
-	        	case CENTER:
-	        		drawPosX = (cellWidth - layout.getAdvance()) / 2;
-	        		break;
-	        	case RIGHT:
-	        		drawPosX = layout.isLeftToRight() ? cellWidth - layout.getAdvance() : 0;
-	        		break;
-	        }
-	        
-	        drawPosX += x;
-	        
-	        // If text has been forced to vertical, align it to center
-//	        if(breakWidth < textAreaWidth) {
-//	        	float centerCorrection = layout.isLeftToRight() ? 
-//	        			(float) (layout.getAdvance() / 2) : 
-//	        				-1 * (float) (layout.getAdvance() / 2);
-//	        	drawPosX = textAreaWidth / 2 - centerCorrection;
-//	        }
-
-	        // Stop drawing if the text won't fit
-//	        if (breakHeight < drawPosY + layout.getDescent() + layout.getLeading()) {
-//	            break;
-//	        }
-
-//	        drawPosY += layout.getAscent();
-
-	        // Add TextLayout at (drawPosX, drawPosY).
-	        result.add(new PositionedText(drawPosX, drawPosY, layout));
-
-	        // Move y-coordinate in preparation for next layout.
-	        //drawPosY += layout.getDescent() + layout.getLeading();
-	        drawPosY += layout.getDescent() + layout.getLeading() + layout.getAscent();
-//	        drawPosY += getLineHeight();
-	    }
-        return result;
-	}
-	
-	class PositionedText {
-        float drawPosX;
-        float drawPosY;
-        TextLayout layout;      
-        
-        public PositionedText(float drawPosX, float drawPosY, TextLayout layout) {
-            this.drawPosX = drawPosX;
-            this.drawPosY = drawPosY;
-            this.layout = layout;
-        }
-        
-        public void render(Graphics2D g) {
-            layout.draw(g, drawPosX, drawPosY);
-        }
-    }
-}
+package org.simantics.document.linking.report.pdf;
+
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.Shape;
+import java.awt.font.LineBreakMeasurer;
+import java.awt.font.TextAttribute;
+import java.awt.font.TextLayout;
+import java.net.URL;
+import java.text.AttributedCharacterIterator;
+import java.text.AttributedString;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Hashtable;
+import java.util.List;
+
+import org.simantics.document.linking.report.Document.TextSize;
+import org.simantics.document.linking.report.Table;
+import org.simantics.document.linking.report.TableColumn;
+import org.simantics.document.linking.report.TableColumn.Alignment;
+import org.simantics.document.linking.report.TableRow;
+import org.simantics.document.linking.report.TextItem;
+import org.simantics.document.linking.report.URLItem;
+
+import com.lowagie.text.pdf.PdfAction;
+
+
+public class PDFTable implements Table, PDFElement {
+	PDFDocument writer;
+	PDFPageStream stream;
+	PDFPage startPage;
+	
+	int currentLine = 0;
+	
+	List<TableColumn> columns = new ArrayList<TableColumn>();
+	List<String> columnNames = new ArrayList<String>();
+	List<Integer> columnSizes = new ArrayList<Integer>();
+	List<Integer> columnPositions = new ArrayList<Integer>();
+	
+	TextItem title = null;
+	
+	boolean headerVisible = true;
+	private boolean linesVisible = true;
+	private boolean linesPrevVisible = true;
+	boolean clipText = false;
+	
+	int textOffsetX = 2;
+	int textOffsetY = 2;
+	
+	public PDFTable(PDFDocument writer, PDFPageStream stream) {
+		this.writer = writer;
+		this.stream = stream;
+		this.startPage = stream.getCurrentPage();
+		
+	}
+	
+	public PDFTable(PDFTable table) {
+		this.writer = table.writer;
+		this.stream = table.stream;
+		this.startPage = stream.getCurrentPage();
+		this.columns.addAll(table.columns);
+		this.columnNames.addAll(table.columnNames);
+		
+		updateColumnPositions();
+	}
+	
+	
+	@Override
+	public PDFPage getPage() {
+		return startPage;
+	}
+	
+	/* (non-Javadoc)
+	 * @see org.simantics.document.linking.report.Table#addColumn(java.lang.String, double)
+	 */
+	@Override
+	public TableColumn addColumn(String name, double width) {
+		TableColumn tc = new TableColumn(name, width);
+		columns.add(tc);
+		columnNames.add(name);
+		
+		updateColumnPositions();
+		return tc;
+	}
+	
+	private void updateColumnPositions() {
+		int pos = 0;
+		columnSizes.clear();
+		columnPositions.clear();
+		for (TableColumn c : columns) {
+			int size = (int)(c.getWidth()*stream.getContentWidth());
+			columnSizes.add(size);
+			columnPositions.add(pos);
+			pos+=size;
+		}
+	}
+	
+	@Override
+	public List<TableColumn> getColumns() {
+		return columns;
+	}
+	
+	@Override
+	public boolean isLinesVisible() {
+		return linesVisible;
+	}
+	
+	@Override
+	public void setLinesVisible(boolean b) {
+		if (this.linesVisible == b)
+			return;
+		this.linesPrevVisible = linesVisible;
+		this.linesVisible = b;
+	}
+	
+	@Override
+	public boolean isHeaderVisible() {
+		return headerVisible;
+	}
+	
+	@Override
+	public void setHeaderVisible(boolean b) {
+		this.headerVisible = b;
+	}
+	
+	private boolean isFirstLine() {
+		return currentLine == 0 || stream.getCurrentPage().currentLine == 1;
+	}
+	
+	@Override
+	public void setTitle(String title) {
+		try {
+			this.title = writer.newItem(TextItem.class);
+			this.title.setText(title);
+		} catch (Exception e) {
+			
+		}
+	}
+	
+	@Override
+	public void setTitle(TextItem title){
+		this.title = title;
+	}
+	
+	/* (non-Javadoc)
+	 * @see org.simantics.document.linking.report.Table#writeRow(java.lang.String[])
+	 */
+	@Override
+	public TableRow writeRow(String... line) throws Exception{
+		List<String> list = new ArrayList<String>(line.length);
+		for (String s : line)
+			list.add(s);
+		return writeRow(list);
+	}
+	
+	/* (non-Javadoc)
+	 * @see org.simantics.document.linking.report.Table#writeRow(java.util.List)
+	 */
+	@Override
+	public TableRow writeRow(List<String> line) throws Exception{
+		if (isFirstLine())
+			writeHeader();
+		return _writeRow(line);
+	}
+	
+	@Override
+	public TableRow writeRowItem(TextItem... line) throws Exception {
+		List<TextItem> list = new ArrayList<TextItem>(line.length);
+		for (TextItem s : line)
+			list.add(s);
+		return writeRowItem(list);
+	}
+	
+	@Override
+	public TableRow writeRowItem(List<TextItem> line) throws Exception {
+		if (isFirstLine())
+			writeHeader();
+		return _writeRow2(line);
+	}
+	
+	private TableRow _writeRow(List<String> line) throws Exception {
+		int h = getTextHeight();
+		int ht = getTopHeight();
+		int hb = getBottomHeight();
+		PDFPage page = getCurrentPage();
+		Graphics2D g2d = page.g2d;
+		Shape clip = g2d.getClip();
+		
+		if (clipText) {
+			for (int i = 0; i < line.size(); i++) {
+				if (line.get(i) == null)
+					continue;
+				g2d.setClip(columnPositions.get(i),ht-1,columnSizes.get(i),hb-ht+2);
+				g2d.drawString(line.get(i), columnPositions.get(i)+textOffsetX, h);
+			}
+			g2d.setClip(clip);
+			if (linesVisible) {
+				for (int i = 0; i < line.size(); i++) {
+					g2d.drawLine(columnPositions.get(i), ht, columnPositions.get(i), hb);
+				}
+				if (isFirstLine() || !linesPrevVisible) {
+					g2d.drawLine(0, ht, stream.contentWidth, ht);
+					linesPrevVisible = true;
+				}
+				g2d.drawLine(stream.contentWidth, ht, stream.contentWidth, hb);
+				g2d.drawLine(0, hb, stream.contentWidth, hb);
+			}
+			currentLine++;
+			page.currentLine++;
+			page.availableLines--;
+			page.currentPixel += getLineHeight();
+		} else {
+			PositionedRow row = _getRow(line);
+			if (stream.contentHeight-page.currentPixel < row.reservedSpace) {
+				stream.nextPage();
+				page = getCurrentPage();
+				g2d = page.g2d;
+				writeHeader();
+				row = _getRow(line);
+			}
+			row.render(g2d);
+			currentLine+= row.realLines;
+			page.currentLine+= row.realLines;
+			page.currentPixel += row.reservedSpace;
+			page.estimateAvailableLines();
+		}
+		
+		stream.checkNextPage();
+		return new PDFTableRow();
+	}
+	
+	private TableRow _writeRow2(List<TextItem> line) throws Exception {
+		int h = getTextHeight();
+		int ht = getTopHeight();
+		int hb = getBottomHeight();
+		PDFPage page = getCurrentPage();
+		Graphics2D g2d = page.g2d;
+		Shape clip = g2d.getClip();
+		
+		if (clipText) {
+			for (int i = 0; i < line.size(); i++) {
+				TextItem text = line.get(i);
+				if (text == null)
+					continue;
+				g2d.setClip(columnPositions.get(i),ht,columnSizes.get(i),hb-ht);
+				g2d.drawString(text.getText(), columnPositions.get(i)+textOffsetX, h);
+				if (text instanceof URLItem) {
+					URL url = ((URLItem)text).getURL();
+					if (url != null) {
+						addLink(url, columnPositions.get(i),ht,columnSizes.get(i),hb-ht);
+					}
+				}
+			}
+			g2d.setClip(clip);
+			if (linesVisible) {
+				for (int i = 0; i < line.size(); i++) {
+					g2d.drawLine(columnPositions.get(i), ht, columnPositions.get(i), hb);
+				}
+				if (isFirstLine() || !linesPrevVisible) {
+					g2d.drawLine(0, ht, stream.contentWidth, ht);
+					linesPrevVisible = true;
+				}
+				g2d.drawLine(stream.contentWidth, ht, stream.contentWidth, hb);
+				g2d.drawLine(0, hb, stream.contentWidth, hb);
+			}
+			currentLine++;
+			page.currentLine++;
+			page.availableLines--;
+			page.currentPixel += getLineHeight();
+		} else {
+			PositionedRow row = _getRow2(line);
+			if (stream.contentHeight-page.currentPixel < row.reservedSpace) {
+				stream.nextPage();
+				page = getCurrentPage();
+				g2d = page.g2d;
+				writeHeader();
+				row = _getRow2(line);
+			}
+			row.render(g2d);
+			currentLine+= row.realLines;
+			page.currentLine+= row.realLines;
+			page.currentPixel += row.reservedSpace;
+			page.estimateAvailableLines();
+		}
+		
+		stream.checkNextPage();
+		return new PDFTableRow();
+	}
+	
+	void writeLine(String line) throws Exception{
+		writeLine(line, 0);
+	}
+	
+	void writeLine(TextItem line) throws Exception{
+		writeLine(line, 0);
+	}
+	
+	private void writeHeader() throws Exception{
+		if (headerVisible) {
+			TextSize s = currentTextSize;
+			setTextSize(TextSize.MEDIUM);
+			if (title != null) {
+				boolean b = linesVisible;
+				setLinesVisible(false);
+				writeLine(title);
+				setLinesVisible(b);
+			}
+			_writeRow(columnNames);
+			setTextSize(s);
+		}
+	}
+	
+	void writeLine(String line, int x) throws Exception{
+		int h = getTextHeight();
+		int ht = getTopHeight();
+		int hb = getBottomHeight();
+		PDFPage page = getCurrentPage();
+		Graphics2D g2d = page.g2d;
+		g2d.drawString(line, x+textOffsetX, h);
+		if (linesVisible) {
+			if (isFirstLine() || !linesPrevVisible) {
+				g2d.drawLine(0, ht, stream.contentWidth, ht);
+				linesPrevVisible = true;
+			}
+			g2d.drawLine(0, ht, 0, hb);
+			g2d.drawLine(stream.contentWidth, ht, stream.contentWidth, hb);
+			g2d.drawLine(0, hb, stream.contentWidth, hb);
+		}
+		currentLine++;
+		page.currentLine++;
+		page.availableLines--;
+		page.currentPixel += getLineHeight();
+		stream.checkNextPage();
+	}
+	
+	void writeLine(TextItem line, int x) throws Exception{
+		int h = getTextHeight();
+		int ht = getTopHeight();
+		int hb = getBottomHeight();
+		PDFPage page = getCurrentPage();
+		Graphics2D g2d = page.g2d;
+		g2d.drawString(line.getText(), x+textOffsetX, h);
+		if (linesVisible) {
+			if (isFirstLine() || !linesPrevVisible) {
+				g2d.drawLine(0, ht, stream.contentWidth, ht);
+				linesPrevVisible = true;
+			}
+			g2d.drawLine(0, ht, 0, hb);
+			g2d.drawLine(stream.contentWidth, ht, stream.contentWidth, hb);
+			g2d.drawLine(0, hb, stream.contentWidth, hb);
+		}
+		if (line instanceof URLItem) {
+			URL url = ((URLItem)line).getURL();
+			if (url != null) {
+				addLink(url, 0,ht,stream.contentWidth,hb-ht);
+			}
+		}
+		currentLine++;
+		page.currentLine++;
+		page.availableLines--;
+		page.currentPixel += getLineHeight();
+		stream.checkNextPage();
+	}
+	
+	int getTopHeight() {
+		return getTopHeight(currentLine);
+	}
+	
+	int getTopHeight(int line) {
+		return (line-currentLine)*getLineHeight()+getCurrentPage().currentPixel;
+	}
+	
+	int getTextHeight() {
+		PDFPage page = getCurrentPage();
+		return page.currentPixel+getLineHeight()-page.fm.getDescent()-textOffsetY;
+	}
+	
+	PDFPage getCurrentPage() {
+		return stream.getCurrentPage();
+	}
+	
+	int getBottomHeight() {
+		return getBottomHeight(currentLine);
+	}
+	
+	protected int getLineHeight() {
+		return getCurrentPage().fm.getHeight()+textOffsetY;
+	}
+	
+	private int getBottomHeight(int line) {
+		return (line-currentLine+1)*getLineHeight()+getCurrentPage().currentPixel;
+	}
+	
+	public int getAvailableLines() {
+		PDFPage page = getCurrentPage();
+		int contentHeight = stream.contentHeight;
+		int pixelY = page.currentPixel;
+		return (int)Math.floor((contentHeight-pixelY)/getLineHeight());
+	}
+	
+	private TextSize currentTextSize = TextSize.SMALL;
+	
+	@Override
+	public void setTextSize(TextSize size) {
+		stream.getCurrentPage().setFont(writer.fonts.get(size));
+		currentTextSize = size;
+	}
+	
+	@Override
+	public TextSize getTextSize() {
+		return currentTextSize;
+	}
+	
+	private PositionedRow _getRow(List<String> line) {
+		PositionedRow row = new PositionedRow();
+		int h = getTextHeight();
+		int realLines = 1;
+		int reservedSpace = 0;
+		List<List<PositionedText>> cells = new ArrayList<List<PositionedText>>(line.size());
+		if (line.size() > 1) {
+			for (int i = 0; i < line.size(); i++) {
+				String text = line.get(i);
+				int availableSize = columnSizes.get(i)-textOffsetX;
+				if (text != null && text.length() > 0) {
+					List<PositionedText> pt = getText(text,  columnPositions.get(i)+textOffsetX, h,availableSize, columns.get(i).getAlignment());
+					cells.add(pt);
+					reservedSpace = Math.max(reservedSpace, getResevedSpace(pt)+getLineHeight());
+					realLines = Math.max(realLines, getLineSpace(pt));
+				} else {
+					cells.add(Collections.<PositionedText> emptyList());
+					reservedSpace = Math.max(reservedSpace, getLineHeight());
+				}
+			}
+		} else {
+			String text = line.get(0);
+			int availableSize = stream.contentWidth;
+			if (text != null && text.length() > 0) {
+				List<PositionedText> pt = getText(text,  textOffsetX, h,availableSize, columns.get(0).getAlignment());
+				cells.add(pt);
+				reservedSpace = Math.max(reservedSpace, getResevedSpace(pt)+getLineHeight());
+				realLines = Math.max(realLines, getLineSpace(pt));
+			} else {
+				cells.add(Collections.<PositionedText> emptyList());
+				reservedSpace = Math.max(reservedSpace, getLineHeight());
+			}
+		}
+		row.reservedSpace = reservedSpace;
+		row.startLine = currentLine;
+		row.realLines = realLines;
+		row.cells = cells;
+		return row;
+	}
+	
+	private PositionedRow _getRow2(List<TextItem> line) {
+		PositionedRow row = new PositionedRow();
+		int h = getTextHeight();
+		int realLines = 1;
+		int reservedSpace = 0;
+		row.cells = new ArrayList<List<PositionedText>>(line.size());
+		row.urls = new ArrayList<URL>();
+		if (line.size() > 1) {
+			for (int i = 0; i < line.size(); i++) {
+				TextItem item =line.get(i); 
+				
+				int availableSize = columnSizes.get(i)-textOffsetX;
+				if (item != null && item.getText().length() > 0) {
+					String text = item.getText();
+					List<PositionedText> pt = getText(text,  columnPositions.get(i)+textOffsetX, h,availableSize, columns.get(i).getAlignment());
+					row.cells.add(pt);
+					reservedSpace = Math.max(reservedSpace, getResevedSpace(pt)+getLineHeight());
+					realLines = Math.max(realLines, getLineSpace(pt));
+				} else {
+					row.cells.add(Collections.<PositionedText> emptyList());
+					reservedSpace = Math.max(reservedSpace, getLineHeight());
+				}
+				if (item instanceof URLItem) {
+					row.urls.add(((URLItem)item).getURL());
+				} else {
+					row.urls.add(null);
+				}
+			}
+		
+		} else {
+			String text = line.get(0).getText();
+			int availableSize = stream.contentWidth;
+			if (text != null && text.length() > 0) {
+				List<PositionedText> pt = getText(text,  textOffsetX, h,availableSize, columns.get(0).getAlignment());
+				row.cells.add(pt);
+				reservedSpace = Math.max(reservedSpace, getResevedSpace(pt)+getLineHeight());
+				realLines = Math.max(realLines, getLineSpace(pt));
+			} else {
+				row.cells.add(Collections.<PositionedText> emptyList());
+				reservedSpace = Math.max(reservedSpace, getLineHeight());
+			}
+		}
+		row.reservedSpace = reservedSpace;
+		row.startLine = currentLine;
+		row.realLines = realLines;
+		return row;
+	}
+	
+	private int getResevedSpace(List<PositionedText> pt) {
+		float sy = pt.get(0).drawPosY;
+		float ey = pt.get(pt.size()-1).drawPosY;
+		return (int)Math.ceil(ey-sy);
+	}
+	/**
+	 * Usually lines of multi-line cells consume less space than the maximum line height (FontMetrics). This method calculates the exact amount of lines required by a cell. 
+	 * @param pt
+	 * @return
+	 */
+	private int getLineSpace(List<PositionedText> pt) {
+		if (pt.size() < 2)
+			return 1;
+		
+		return (int)(getResevedSpace(pt)/getLineHeight())+1;
+	}
+	
+	private class PositionedRow {
+		int startLine;
+		int realLines;
+		int reservedSpace;
+		List<List<PositionedText>> cells;
+		List<URL> urls;
+		
+		void render(Graphics2D g) {
+			int ht = getTopHeight(startLine);
+			int hb = ht +reservedSpace;
+			if (cells.size() > 0) {
+				for (int i = 0; i < cells.size(); i++) {
+					List<PositionedText> ptl = cells.get(i);
+					for (PositionedText pt : ptl)
+						pt.render(g);
+					if (urls != null) {
+						URL url = urls.get(i);
+						if (url != null) {
+							addLink(url, columnPositions.get(i),ht,columnSizes.get(i),hb-ht);
+						}
+					}
+				}
+			} 
+			if (linesVisible) {
+				if (cells.size() > 0) {
+					for (int i = 0; i < cells.size(); i++) {
+						g.drawLine(columnPositions.get(i), ht, columnPositions.get(i), hb);
+					}
+				} else {
+					g.drawLine(columnPositions.get(0), ht, columnPositions.get(0), hb);
+				}
+				if (isFirstLine() || !linesPrevVisible) {
+					g.drawLine(0, ht, stream.contentWidth, ht);
+					linesPrevVisible = true;
+				}
+				g.drawLine(stream.contentWidth, ht, stream.contentWidth, hb);
+				g.drawLine(0, hb, stream.contentWidth, hb);
+				
+			}
+		}
+	}
+	
+	private void addLink(URL url, int x, int y, int w, int h) {
+		PDFPage page = getCurrentPage();
+		float fx = +page.stream.marginLeft + x;
+		float fy = -page.stream.marginTop + page.template.getHeight() - y;
+		page.template.setAction(new PdfAction(url), fx, fy-h, fx+w, fy);
+	}
+	
+	private List<PositionedText> getText(String text, int x, int y, int cellWidth, Alignment alignment) {
+		List<PositionedText> result = new ArrayList<PositionedText>();
+		Hashtable<TextAttribute, Object> map = new Hashtable<TextAttribute, Object>();
+		PDFPage page = getCurrentPage();
+		Font font = page.getFont();
+		for (TextAttribute a : font.getAttributes().keySet()) {
+			Object v = font.getAttributes().get(a);
+			if (v != null)
+				map.put(a, v);
+		}
+//		map.putAll(font.getAttributes());
+		map.put(TextAttribute.FOREGROUND, Color.black);
+
+		AttributedString attributedText = new AttributedString(	text, map);
+
+		AttributedCharacterIterator paragraph = attributedText.getIterator();
+		int paragraphStart = paragraph.getBeginIndex();
+		int paragraphEnd = paragraph.getEndIndex();
+		LineBreakMeasurer lineMeasurer = new LineBreakMeasurer(paragraph, page.frc);
+		lineMeasurer.setPosition(paragraphStart);
+		
+		// Get lines until the entire paragraph has been displayed.
+        int next, limit, charat, position = 0;
+        int drawPosY = y;
+        while ((position = lineMeasurer.getPosition()) < paragraphEnd) {
+
+            // Find possible line break and set it as a limit to the next layout
+            next = lineMeasurer.nextOffset(cellWidth);
+            limit = next;
+            charat = text.indexOf(System.getProperty("line.separator"),position+1);
+            if(charat < next && charat != -1){
+               limit = charat;
+            }
+
+            // Retrieve next layout. A cleverer program would also cache
+            // these layouts until the component is re-sized.
+            TextLayout layout = lineMeasurer.nextLayout(cellWidth, limit, false);
+
+	        // Compute pen x position. If the paragraph is right-to-left we
+	        // will align the TextLayouts to the right edge of the panel.
+	        // Note: this won't occur for the English text in this sample.
+	        // Note: drawPosX is always where the LEFT of the text is placed.
+	        float drawPosX = 0;
+	        switch (alignment) {
+	        	case LEFT: 
+	        		drawPosX = layout.isLeftToRight() ? 0 : cellWidth - layout.getAdvance();
+	        		break;
+	        	case CENTER:
+	        		drawPosX = (cellWidth - layout.getAdvance()) / 2;
+	        		break;
+	        	case RIGHT:
+	        		drawPosX = layout.isLeftToRight() ? cellWidth - layout.getAdvance() : 0;
+	        		break;
+	        }
+	        
+	        drawPosX += x;
+	        
+	        // If text has been forced to vertical, align it to center
+//	        if(breakWidth < textAreaWidth) {
+//	        	float centerCorrection = layout.isLeftToRight() ? 
+//	        			(float) (layout.getAdvance() / 2) : 
+//	        				-1 * (float) (layout.getAdvance() / 2);
+//	        	drawPosX = textAreaWidth / 2 - centerCorrection;
+//	        }
+
+	        // Stop drawing if the text won't fit
+//	        if (breakHeight < drawPosY + layout.getDescent() + layout.getLeading()) {
+//	            break;
+//	        }
+
+//	        drawPosY += layout.getAscent();
+
+	        // Add TextLayout at (drawPosX, drawPosY).
+	        result.add(new PositionedText(drawPosX, drawPosY, layout));
+
+	        // Move y-coordinate in preparation for next layout.
+	        //drawPosY += layout.getDescent() + layout.getLeading();
+	        drawPosY += layout.getDescent() + layout.getLeading() + layout.getAscent();
+//	        drawPosY += getLineHeight();
+	    }
+        return result;
+	}
+	
+	class PositionedText {
+        float drawPosX;
+        float drawPosY;
+        TextLayout layout;      
+        
+        public PositionedText(float drawPosX, float drawPosY, TextLayout layout) {
+            this.drawPosX = drawPosX;
+            this.drawPosY = drawPosY;
+            this.layout = layout;
+        }
+        
+        public void render(Graphics2D g) {
+            layout.draw(g, drawPosX, drawPosY);
+        }
+    }
+}