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package org.eclipse.swt.examples.paint;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved
*/
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 PaintPlugin.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;
}
}
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