| /******************************************************************************* |
| * Copyright (c) 2000, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.examples.paint; |
| |
| |
| import org.eclipse.swt.graphics.*; |
| |
| /** |
| * A polyline drawing tool. |
| */ |
| public class PolyLineTool extends SegmentedPaintSession implements PaintTool { |
| private ToolSettings settings; |
| |
| /** |
| * Constructs a PolyLineTool. |
| * |
| * @param toolSettings the new tool settings |
| * @param paintSurface the PaintSurface we will render on. |
| */ |
| public PolyLineTool(ToolSettings toolSettings, PaintSurface paintSurface) { |
| super(paintSurface); |
| set(toolSettings); |
| } |
| |
| /** |
| * Sets the tool's settings. |
| * |
| * @param toolSettings the new tool settings |
| */ |
| public void set(ToolSettings toolSettings) { |
| settings = toolSettings; |
| } |
| |
| /** |
| * Returns the name associated with this tool. |
| * |
| * @return the localized name of this tool |
| */ |
| public String getDisplayName() { |
| return PaintExample.getResourceString("tool.PolyLine.label"); |
| } |
| |
| /* |
| * Template methods for drawing |
| */ |
| protected Figure createFigure(Point[] points, int numPoints, boolean closed) { |
| ContainerFigure container = new ContainerFigure(); |
| if (closed && settings.commonFillType != ToolSettings.ftNone && numPoints >= 3) { |
| container.add(new SolidPolygonFigure(settings.commonBackgroundColor, points, numPoints)); |
| } |
| if (! closed || settings.commonFillType != ToolSettings.ftSolid || numPoints < 3) { |
| for (int i = 0; i < numPoints - 1; ++i) { |
| final Point a = points[i]; |
| final Point b = points[i + 1]; |
| container.add(new LineFigure(settings.commonForegroundColor, settings.commonBackgroundColor, settings.commonLineStyle, |
| a.x, a.y, b.x, b.y)); |
| } |
| if (closed) { |
| final Point a = points[points.length - 1]; |
| final Point b = points[0]; |
| container.add(new LineFigure(settings.commonForegroundColor, settings.commonBackgroundColor, settings.commonLineStyle, |
| a.x, a.y, b.x, b.y)); |
| } |
| } |
| return container; |
| } |
| } |