/**
* 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.java.ui.figures;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.IFigure;
import org.eclipse.swt.graphics.Color;
import org.whole.lang.ui.figures.ContentPaneFigure;
import org.whole.lang.ui.figures.FigureConstants;
import org.whole.lang.ui.figures.RoundBracketsBorder;
import org.whole.lang.ui.layout.RowLayout;
public class InfixExpressionFigure extends ContentPaneFigure {
private IFigure operand;
private IFigure extendedOperands;
private boolean showLeftParentheses;
private boolean showRightParentheses;
public InfixExpressionFigure() {
super(new RowLayout().withSpacing(4));
initContentPanes(4);
add(createContentPane(0));
operand = createContentPane(1);
add(operand);
add(createContentPane(2));
extendedOperands = createContentPane(3);
add(extendedOperands);
}
public void showExtendedOperands(boolean visible) {
extendedOperands.setVisible(visible);
}
public void showLeftParentheses(boolean showLeftParentheses) {
int margin = showLeftParentheses ? RoundBracketsBorder.HMARGIN+1 : 0;
getContentPane(0).getLayoutManager()
.withMarginLeft(margin).withMarginRight(margin);
this.showLeftParentheses = showLeftParentheses;
}
public void showRightParentheses(boolean showRightParentheses) {
int margin = showRightParentheses ? RoundBracketsBorder.HMARGIN+1 : 0;
getContentPane(2).getLayoutManager()
.withMarginLeft(margin).withMarginRight(margin);
this.showRightParentheses = showRightParentheses;
}
protected void paintFigure(Graphics g) {
super.paintFigure(g);
int spacing = Math.max(1, getLayoutManager().getSpacing()/2);
Color color = g.getForegroundColor();
g.setForegroundColor(FigureConstants.contentLighterColor);
if (showLeftParentheses)
RoundBracketsBorder.paintRoundBrackets(g, getContentPane(0)
.getBounds().getShrinked(spacing, 0));
if (showRightParentheses)
RoundBracketsBorder.paintRoundBrackets(g, getContentPane(2)
.getBounds().getShrinked(spacing, 0));
g.setForegroundColor(color);
}
}