/**
* Copyright 2004-2016 Riccardo Solmi. All rights reserved.
* This file is part of the Whole Platform.
*
* The Whole Platform is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Whole Platform is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whole.lang.ui.figures;
import org.eclipse.draw2d.Border;
import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.MarginBorder;
import org.eclipse.draw2d.geometry.Insets;
import org.eclipse.draw2d.geometry.Rectangle;
/**
* @author Riccardo Solmi
*/
public class RoundBracketsBorder extends MarginBorder {
public static final int HMARGIN = 5;
public static final Border PARENTHESIS = new RoundBracketsBorder() {
@Override
protected void setBracketsStyle(Graphics g) {
g.setForegroundColor(FigureConstants.contentLighterColor);
}
};
public RoundBracketsBorder() {
this(true, true);
}
public RoundBracketsBorder(boolean left, boolean right) {
super(0, left ? HMARGIN : 0, 0, right ? HMARGIN : 0);
}
public void paint(IFigure f, Graphics g, Insets i) {
setBracketsStyle(g);
paintRoundBrackets(g, getPaintRectangle(f, i).resize(-1, -2), insets.left, insets.right);
}
protected void setBracketsStyle(Graphics g) {
g.setForegroundColor(ColorConstants.black);
}
public static void paintRoundBrackets(Graphics g, Rectangle bounds) {
paintRoundBrackets(g, bounds, HMARGIN, HMARGIN);
}
public static void paintRoundBrackets(Graphics g, Rectangle bounds, int leftMargin, int rightMargin) {
if (leftMargin > 0) {
final int leftSize = leftMargin + 1;
g.drawArc(bounds.x, bounds.y, leftSize, leftSize*2, 90, 90);
if (bounds.y+leftMargin < bounds.bottom()-leftMargin)
g.drawLine(bounds.x, bounds.y+leftMargin, bounds.x, bounds.bottom()-leftMargin);
g.drawArc(bounds.x, bounds.bottom()-leftSize*2, leftSize, leftSize*2, 180, 90);
}
if (rightMargin > 0) {
final int rightSize = rightMargin + 1;
g.drawArc(bounds.right()-rightSize, bounds.y, rightSize, rightSize*2, 0, 90);
if (bounds.y+rightMargin < bounds.bottom()-rightMargin)
g.drawLine(bounds.right(), bounds.y+rightMargin, bounds.right(), bounds.bottom()-rightMargin);
g.drawArc(bounds.right()-rightSize, bounds.bottom()-rightSize*2, rightSize, rightSize*2, 0, -90);
}
}
}