textfigure.java

来自「mywork是rcp开发的很好的例子」· Java 代码 · 共 128 行

package net.sf.freenote.figure;

import net.sf.freenote.directedit.DirectEditable;

import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.Figure;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.MarginBorder;
import org.eclipse.draw2d.StackLayout;
import org.eclipse.draw2d.geometry.PointList;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.draw2d.text.FlowPage;
import org.eclipse.draw2d.text.ParagraphTextLayout;
import org.eclipse.draw2d.text.TextFlow;

/**
 * 从logic示例中移植的，可支持自动换行，硬换行
 * @author levin
 * @since 2008-1-20 上午10:08:33
 */
public class TextFigure extends Figure implements DirectEditable{
	protected static int DEFAULT_CORNER_SIZE = 10;

	private int cornerSize;

	/**
	 * Constructs an empty BentCornerFigure with default background color of 
	 * ColorConstants.tooltipBackground and default corner size.
	 */
	public TextFigure() {
		setBackgroundColor(ColorConstants.tooltipBackground);
		setForegroundColor(ColorConstants.tooltipForeground);
		setCornerSize(DEFAULT_CORNER_SIZE);
		setBorder(new MarginBorder(DEFAULT_CORNER_SIZE-3));
		FlowPage flowPage = new FlowPage();

		textFlow = new TextFlow();

		textFlow.setLayoutManager(new ParagraphTextLayout(textFlow,
						ParagraphTextLayout.WORD_WRAP_SOFT));

		flowPage.add(textFlow);

		setLayoutManager(new StackLayout());
		add(flowPage);
	}

	/**
	 * Returns the size, in pixels, that the figure should use to draw its bent corner.
	 * 
	 * @return size of the corner
	 */
	public int getCornerSize() {
		return cornerSize;
	}

	/**
	 * @see org.eclipse.draw2d.Figure#paintFigure(org.eclipse.draw2d.Graphics)
	 */
	protected void paintFigure(Graphics graphics) {
		Rectangle rect = getBounds().getCopy();

		graphics.translate(getLocation());

		// fill the note
		PointList outline = new PointList();
		
		outline.addPoint(0, 0);
		outline.addPoint(rect.width - cornerSize, 0);
		outline.addPoint(rect.width - 1, cornerSize);
		outline.addPoint(rect.width - 1, rect.height - 1);
		outline.addPoint(0, rect.height - 1);
		
		graphics.fillPolygon(outline); 
		
		// draw the inner outline
		PointList innerLine = new PointList();
		
		innerLine.addPoint(rect.width - cornerSize - 1, 0);
		innerLine.addPoint(rect.width - cornerSize - 1, cornerSize);
		innerLine.addPoint(rect.width - 1, cornerSize);
		innerLine.addPoint(rect.width - cornerSize - 1, 0);
		innerLine.addPoint(0, 0);
		innerLine.addPoint(0, rect.height - 1);
		innerLine.addPoint(rect.width - 1, rect.height - 1);
		innerLine.addPoint(rect.width - 1, cornerSize);
		
		graphics.drawPolygon(innerLine);
		
		graphics.translate(getLocation().getNegated());
	}

	/**
	 * Sets the size of the figure's corner to the given offset.
	 * 
	 * @param newSize the new size to use.
	 */
	public void setCornerSize(int newSize) {
		cornerSize = newSize;
	}
	
	/** The inner TextFlow **/
	private TextFlow textFlow;


	/**
	 * Returns the text inside the TextFlow.
	 * 
	 * @return the text flow inside the text.
	 */
	public String getDesc() {
		return textFlow.getText();
	}

	/**
	 * Sets the text of the TextFlow to the given value.
	 * 
	 * @param newText the new text value.
	 */
	public void setText(String newText) {
		textFlow.setText(newText);
	}
	
	public void setDesc(String newText) {
		textFlow.setText(newText);
	}	
}