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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 rectangle drawing tool
*/
public class FilledRectangleTool extends DragInteractivePaintSession implements PaintTool {
private Color temporaryFGColor;
private Color temporaryBGColor;
private Color drawFGColor;
private Color drawBGColor;
/**
* Create a RectangleTool.
*
* @param toolSettings the new tool settings
* @param paintSurface the PaintSurface we will render on.
*/
public FilledRectangleTool(ToolSettings toolSettings, PaintSurface paintSurface) {
super(paintSurface);
set(toolSettings);
temporaryFGColor = new Color(null, 255, 255, 255);
temporaryBGColor = new Color(null, 127, 127, 127);
}
/**
* Set the tool's settings
*
* @param toolSettings the new tool settings
*/
public void set(ToolSettings toolSettings) {
drawFGColor = toolSettings.commonForegroundColor;
drawBGColor = toolSettings.commonBackgroundColor;
}
/**
* Get name associated with this tool
*
* @return the localized name of this tool
*/
public String getDisplayName() {
return PaintPlugin.getResourceString("tool.FilledRectangle.displayname");
}
/*
* Template methods for drawing
*/
protected void drawPermanent(GC gc, Point a, Point b) {
gc.setForeground(drawFGColor);
gc.setBackground(drawBGColor);
fillRectangle(gc, a, b);
}
protected void drawTemporary(GC gc, Point a, Point b) {
gc.setForeground(temporaryFGColor);
gc.setBackground(temporaryBGColor);
gc.setXORMode(true);
fillRectangle(gc, a, b);
gc.setXORMode(false);
}
protected void eraseTemporary(GC gc, Point a, Point b) {
drawTemporary(gc, a, b);
}
/**
* Draw a filled rectangle
*/
protected void fillRectangle(GC gc, Point a, Point b) {
final int left = Math.min(a.x, b.x);
final int top = Math.min(a.y, b.y);
final int width = Math.abs(a.x - b.x) + 1;
final int height = Math.abs(a.y - b.y) + 1;
gc.drawRectangle(left, top, width, height);
if ((width > 2) && (height > 2))
gc.fillRectangle(left + 1, top + 1,
width - 1/*- 2*/, height - 1/*- 2*/); // BUG in GC
}
}
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