com.jaspersoft.studio.components.chart.model.theme.paintprovider.PaintProviderDialog.java Source code

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Here is the source code for com.jaspersoft.studio.components.chart.model.theme.paintprovider.PaintProviderDialog.java

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/*******************************************************************************
 * Copyright (C) 2005 - 2014 TIBCO Software Inc. All rights reserved.
 * http://www.jaspersoft.com.
 * 
 * Unless you have purchased  a commercial license agreement from Jaspersoft,
 * the following license terms  apply:
 * 
 * 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 com.jaspersoft.studio.components.chart.model.theme.paintprovider;

import java.awt.Color;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import net.sf.jasperreports.chartthemes.simple.ColorProvider;
import net.sf.jasperreports.chartthemes.simple.GradientPaintProvider;
import net.sf.jasperreports.chartthemes.simple.PaintProvider;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;

import com.jaspersoft.studio.utils.AlfaRGB;
import com.jaspersoft.studio.utils.Colors;

public class PaintProviderDialog extends Dialog {
    private PaintProvider value;
    private Button bgrad;

    public PaintProviderDialog(Shell parent) {
        super(parent);
    }

    @Override
    protected void configureShell(Shell newShell) {
        super.configureShell(newShell);
        newShell.setText("Paint Provider");
    }

    public PaintProvider getValue() {
        if (value instanceof ColorProvider)
            value = new ColorProvider(((ColorProvider) value).getColor());
        else if (value instanceof GradientPaintProvider)
            value = new GradientPaintProvider(((GradientPaintProvider) value).getColor1(),
                    ((GradientPaintProvider) value).getColor2());
        return value;
    }

    public void setValue(PaintProvider value) {
        this.value = value;
        if (value instanceof ColorProvider) {
            cp = (ColorProvider) value;
            c1 = cp.getColor();
        } else if (value instanceof GradientPaintProvider) {
            gpp = (GradientPaintProvider) value;
            c1 = gpp.getColor1();
            c2 = gpp.getColor2();
        }
    }

    @Override
    protected Control createDialogArea(Composite parent) {
        Composite cmp = (Composite) super.createDialogArea(parent);
        cmp.setLayout(new GridLayout(2, false));

        new Label(cmp, SWT.NONE).setText("Color");

        cw1 = new ColorWidget(cmp, SWT.NONE);
        cw1.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        cw1.addPropertyChangeListener(new PropertyChangeListener() {

            @Override
            public void propertyChange(PropertyChangeEvent arg0) {
                c1 = Colors.getAWT4SWTRGBColor((AlfaRGB) arg0.getNewValue());
                if (gpp == null && cp == null) {
                    cp = new ColorProvider(c1);
                    value = cp;
                }
                if (cp != null)
                    cp.setColor(c1);
                if (gpp != null)
                    gpp.setColor1(c1);
            }
        });

        bgrad = new Button(cmp, SWT.CHECK);
        bgrad.setText("Use Gradient Color");
        GridData gd = new GridData(GridData.FILL_HORIZONTAL);
        gd.horizontalSpan = 2;
        bgrad.setLayoutData(gd);

        lbl = new Label(cmp, SWT.NONE);
        lbl.setText("To Color");

        cw2 = new ColorWidget(cmp, SWT.NONE);
        cw2.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        cw2.addPropertyChangeListener(new PropertyChangeListener() {

            @Override
            public void propertyChange(PropertyChangeEvent arg0) {
                c2 = Colors.getAWT4SWTRGBColor((AlfaRGB) arg0.getNewValue());
                gpp.setColor2(c2);
            }
        });

        bgrad.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(SelectionEvent e) {
                if (bgrad.getSelection()) {
                    if (c1 == null)
                        c1 = new Color(0, 0, 0);
                    if (c2 == null && c1 != null)
                        c2 = new Color(c1.getRed(), c1.getGreen(), c1.getBlue());

                    if (gpp == null)
                        gpp = new GradientPaintProvider(c1, c2);
                    else
                        gpp.setColor1(c1);
                    value = gpp;
                } else {
                    if (cp == null)
                        cp = new ColorProvider(c1);
                    else
                        cp.setColor(c1);
                    value = cp;
                }
                handleTypeChanged();
            }
        });
        bgrad.setSelection(gpp != null);

        handleTypeChanged();
        return cmp;
    }

    private Color c1;
    private Color c2;
    private ColorProvider cp;
    private GradientPaintProvider gpp;

    private ColorWidget cw1;
    private ColorWidget cw2;
    private Label lbl;

    private void handleTypeChanged() {
        cw1.setColor(Colors.getRGB4AWTColor(c1));
        cw2.setColor(Colors.getRGB4AWTColor(c2));
        cw2.setEnabled(bgrad.getSelection());
        lbl.setEnabled(bgrad.getSelection());
    }
}