com.jaspersoft.studio.components.chart.model.theme.stroke.StrokeDialog.java Source code

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Here is the source code for com.jaspersoft.studio.components.chart.model.theme.stroke.StrokeDialog.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.stroke;

import java.awt.BasicStroke;
import java.awt.Stroke;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.VerifyEvent;
import org.eclipse.swt.events.VerifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
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 org.eclipse.swt.widgets.Text;

public class StrokeDialog extends Dialog {
    private BasicStroke value;
    private Text twidth;
    private Text tdash;
    private Text tdashphase;
    private StrokeWidget sw;

    public StrokeDialog(Shell parentShell) {
        super(parentShell);
    }

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

    public Stroke getValue() {
        return value;
    }

    public void setValue(Stroke value) {
        this.value = (BasicStroke) value;
    }

    private void setValidator(Text txt) {
        txt.addVerifyListener(new VerifyListener() {

            @Override
            public void verifyText(VerifyEvent e) {
                try {
                    if (!e.text.trim().isEmpty())
                        new Float(e.text);
                } catch (Exception ex) {
                    e.doit = false;
                }
            }
        });
    }

    @Override
    protected Control createDialogArea(Composite parent) {
        Composite cmp = (Composite) super.createDialogArea(parent);
        cmp.setLayout(new GridLayout(3, false));

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

        twidth = new Text(cmp, SWT.BORDER | SWT.RIGHT);
        setValidator(twidth);
        GridData gd = new GridData(GridData.VERTICAL_ALIGN_BEGINNING | GridData.FILL_HORIZONTAL);
        gd.minimumWidth = 100;
        twidth.setLayoutData(gd);
        twidth.addModifyListener(new ModifyListener() {

            @Override
            public void modifyText(ModifyEvent e) {
                try {
                    float w = new Float(twidth.getText());
                    float[] df = value != null ? value.getDashArray() : new float[] { 1f };
                    float dph = value != null ? value.getDashPhase() : 1f;

                    value = new BasicStroke(w, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND, 1.0f, df, dph);
                    handleValueChanged();
                } catch (NumberFormatException ex) {
                }
            }
        });

        sw = new StrokeWidget(cmp, SWT.NONE);
        gd = new GridData(GridData.FILL_BOTH);
        gd.verticalSpan = 3;
        gd.minimumHeight = 200;
        gd.minimumWidth = 200;
        // gd.heightHint = 200;
        // gd.widthHint = 200;
        sw.setLayoutData(gd);

        Label lbl = new Label(cmp, SWT.NONE);
        lbl.setText("Dash Size");
        lbl.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING));

        tdash = new Text(cmp, SWT.BORDER | SWT.RIGHT);
        setValidator(tdash);
        tdash.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING | GridData.FILL_HORIZONTAL));
        tdash.addModifyListener(new ModifyListener() {

            @Override
            public void modifyText(ModifyEvent e) {
                try {
                    float w = value != null ? value.getLineWidth() : 1f;
                    float df = new Float(tdash.getText());
                    float dph = value != null ? value.getDashPhase() : 1f;

                    value = new BasicStroke(w, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND, 1.0f,
                            new float[] { df }, dph);
                    handleValueChanged();
                } catch (NumberFormatException ex) {
                }
            }
        });

        lbl = new Label(cmp, SWT.NONE);
        lbl.setText("Dash Phase");
        lbl.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING));

        tdashphase = new Text(cmp, SWT.BORDER | SWT.RIGHT);
        setValidator(tdashphase);
        tdashphase.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING | GridData.FILL_HORIZONTAL));
        tdashphase.addModifyListener(new ModifyListener() {

            @Override
            public void modifyText(ModifyEvent e) {
                try {
                    float w = value != null ? value.getLineWidth() : 1f;
                    float[] df = value != null ? value.getDashArray() : new float[] { 1f };
                    float dph = new Float(tdashphase.getText());

                    value = new BasicStroke(w, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND, 1.0f, df, dph);
                    handleValueChanged();
                } catch (NumberFormatException ex) {
                }
            }
        });

        if (value != null) {
            twidth.setText(new Float(value.getLineWidth()).toString());
            float[] d = value.getDashArray();
            if (d != null && d.length > 0)
                tdash.setText(new Float(d[0]).toString());
            tdashphase.setText(new Float(value.getDashPhase()).toString());
        }
        handleValueChanged();
        return cmp;
    }

    private void handleValueChanged() {
        if (value == null)
            return;
        sw.setStroke(value);
        sw.setTBounds();
    }

}