org.deved.antlride.internal.ui.views.interpreter.AntlrFigure.java Source code

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Here is the source code for org.deved.antlride.internal.ui.views.interpreter.AntlrFigure.java

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/*******************************************************************************
 * Copyright (c) 2007, 2008 Edgar Espina.
 * 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
 *
     
 *******************************************************************************/
package org.deved.antlride.internal.ui.views.interpreter;

import org.deved.antlride.core.model.evaluation.EvalElementKind;
import org.deved.antlride.core.model.evaluation.IEvalElement;
import org.deved.antlride.core.model.evaluation.IExceptionEvalElement;
import org.deved.antlride.core.model.evaluation.IRuleEvalElement;
import org.deved.antlride.core.model.evaluation.ITokenEvalElement;
import org.deved.antlride.ui.AntlrPreferenceConstants;
import org.eclipse.draw2d.BorderLayout;
import org.eclipse.draw2d.Clickable;
import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.Cursors;
import org.eclipse.draw2d.FigureUtilities;
import org.eclipse.draw2d.Label;
import org.eclipse.draw2d.LineBorder;
//import org.eclipse.draw2d.SimpleRaisedBorder;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.widgets.Display;

public class AntlrFigure extends Clickable {

    public int x;

    public int y;

    public int width;

    public int height;

    public final IEvalElement element;

    private static final String RULE_TOOL_TIP_PATTERN = " select \"%1$s\" in editor";

    private static final String LOCATION_TOOL_TIP_PATTERN = " \'%1$s\' found at %2$s:%3$s ";

    public AntlrFigure(IEvalElement evalElement, int x, int y) {
        //setStyle(Clickable.STYLE_BUTTON);
        setCursor(Cursors.HAND);
        this.element = evalElement;
        setLayoutManager(new BorderLayout());
        Font font = JFaceResources.getFont("Monospaced");
        Label label = new Label();
        Label tooltip = new Label();
        EvalElementKind kind = evalElement.getElementKind();
        String labelText = null;
        String labelToolTipText = null;
        Color foregroundColor = Display.getDefault().getSystemColor(SWT.COLOR_BLACK);
        switch (kind) {
        case RULE: {
            labelText = evalElement.getElementName();

            labelToolTipText = String.format(RULE_TOOL_TIP_PATTERN, labelText);

            if (!((IRuleEvalElement) evalElement).isLexerRule()) {
                foregroundColor = JFaceResources.getColorRegistry().get(AntlrPreferenceConstants.EDITOR_RULE_COLOR);
            }
        }
            break;
        case TOKEN: {
            ITokenEvalElement token = (ITokenEvalElement) evalElement;

            labelText = "'" + evalElement.getElementName() + "'";

            labelToolTipText = String.format(LOCATION_TOOL_TIP_PATTERN, evalElement.getElementName(),
                    token.getLine(), token.getColumn() + 1);

            foregroundColor = JFaceResources.getColorRegistry().get(AntlrPreferenceConstants.EDITOR_STRING_COLOR);
        }
            break;
        case EXCEPTION: {
            IExceptionEvalElement exception = (IExceptionEvalElement) evalElement;

            labelText = evalElement.getElementName();

            //         labelToolTipText = String.format(LOCATION_TOOL_TIP_PATTERN,
            //               labelText, exception.getLine(), exception.getColumn() + 1);
            labelToolTipText = exception.getMessage();

            foregroundColor = Display.getCurrent().getSystemColor(SWT.COLOR_RED);
        }
            break;
        }
        // text
        label.setFont(font);
        label.setText(labelText);
        label.setForegroundColor(foregroundColor);
        // tooltip
        tooltip.setText(labelToolTipText);
        setToolTip(tooltip);
        // add text label
        add(label, BorderLayout.CENTER);
        //setBorder(new SimpleRaisedBorder());
        setBorder(new LineBorder(ColorConstants.black, 1));
        Dimension size = FigureUtilities.getTextExtents(labelText + "  ", font);
        this.x = x;
        this.y = y;
        this.width = size.width + (size.width * 2 / 10);
        this.height = size.height + (size.height * 2 / 5);
    }

    @Override
    public String toString() {
        StringBuilder builder = new StringBuilder();
        builder.append("{'");
        builder.append(element.getElementName());
        builder.append("' (x=");
        builder.append(x);
        builder.append("; y=");
        builder.append(y);
        builder.append("; w=");
        builder.append(width);
        builder.append("; h=");
        builder.append(height);
        builder.append(")}");
        return builder.toString();
    }
}