com.byterefinery.rmbench.preferences.DDLSourcePreferencePage.java Source code

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Here is the source code for com.byterefinery.rmbench.preferences.DDLSourcePreferencePage.java

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/*
 * created 05.01.2006
 *
 * Copyright 2009, ByteRefinery
 * 
 * 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
 * 
 * $Id$
 */
package com.byterefinery.rmbench.preferences;

import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.preference.ColorSelector;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.swt.SWT;
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.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

import com.byterefinery.rmbench.RMBenchPlugin;

/**
 * a preference page for specifying values for syntax coloring in the DDL source viewer
 * 
 * @author cse
 */
public class DDLSourcePreferencePage extends PreferencePage
        implements IWorkbenchPreferencePage, IPropertyChangeListener {

    private ColorSelector commentColorSelector;
    private ColorSelector stringColorSelector;
    private ColorSelector codeColorSelector;
    private ColorSelector kwColorSelector;
    private ColorSelector highlightColorSelector;

    private boolean defaultCommentColor;
    private boolean defaultStringColor;
    private boolean defaultCodeColor;
    private boolean defaultKwColor;
    private boolean defaultHighlightColor;

    public void init(IWorkbench workbench) {
        setPreferenceStore(RMBenchPlugin.getDefault().getPreferenceStore());
        setDescription(Messages.DDLSourcePreferencePage_syntaxColoring);
    }

    protected Control createContents(Composite parent) {
        Composite fieldEditorParent = new Composite(parent, SWT.NULL);
        GridLayout layout = new GridLayout();
        layout.numColumns = 2;
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        fieldEditorParent.setLayout(layout);
        fieldEditorParent.setFont(parent.getFont());

        Label label;

        label = new Label(fieldEditorParent, SWT.LEFT);
        label.setText(Messages.DDLSourcePreferencePage_commentcolor);
        commentColorSelector = new ColorSelector(fieldEditorParent);
        commentColorSelector.setColorValue(PreferenceHandler.getRGB(PreferenceHandler.PREF_DDL_COMMENTCOLOR));
        commentColorSelector.addListener(this);
        computeButtonSize(commentColorSelector);

        label = new Label(fieldEditorParent, SWT.LEFT);
        label.setText(Messages.DDLSourcePreferencePage_stringcolor);
        stringColorSelector = new ColorSelector(fieldEditorParent);
        stringColorSelector.setColorValue(PreferenceHandler.getRGB(PreferenceHandler.PREF_DDL_STRINGCOLOR));
        stringColorSelector.addListener(this);
        computeButtonSize(stringColorSelector);

        label = new Label(fieldEditorParent, SWT.LEFT);
        label.setText(Messages.DDLSourcePreferencePage_codecolor);
        codeColorSelector = new ColorSelector(fieldEditorParent);
        codeColorSelector.setColorValue(PreferenceHandler.getRGB(PreferenceHandler.PREF_DDL_CODECOLOR));
        codeColorSelector.addListener(this);
        computeButtonSize(codeColorSelector);

        label = new Label(fieldEditorParent, SWT.LEFT);
        label.setText(Messages.DDLSourcePreferencePage_kwcolor);
        kwColorSelector = new ColorSelector(fieldEditorParent);
        kwColorSelector.setColorValue(PreferenceHandler.getRGB(PreferenceHandler.PREF_DDL_KWCOLOR));
        kwColorSelector.addListener(this);
        computeButtonSize(kwColorSelector);

        label = new Label(fieldEditorParent, SWT.LEFT);
        label.setText(Messages.DDLSourcePreferencePage_highlightcolor);
        highlightColorSelector = new ColorSelector(fieldEditorParent);
        highlightColorSelector.setColorValue(PreferenceHandler.getRGB(PreferenceHandler.PREF_DDL_HIGHLIGHTCOLOR));
        highlightColorSelector.addListener(this);
        computeButtonSize(highlightColorSelector);

        return fieldEditorParent;
    }

    protected void computeButtonSize(ColorSelector selector) {

        GridData gd = new GridData();
        int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
        gd.widthHint = Math.max(widthHint, selector.getButton().computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);
        selector.getButton().setLayoutData(gd);
    }

    protected void performDefaults() {
        commentColorSelector
                .setColorValue(PreferenceHandler.getDefaultRGB(PreferenceHandler.PREF_DDL_COMMENTCOLOR));
        stringColorSelector.setColorValue(PreferenceHandler.getDefaultRGB(PreferenceHandler.PREF_DDL_STRINGCOLOR));
        codeColorSelector.setColorValue(PreferenceHandler.getDefaultRGB(PreferenceHandler.PREF_DDL_CODECOLOR));
        kwColorSelector.setColorValue(PreferenceHandler.getDefaultRGB(PreferenceHandler.PREF_DDL_KWCOLOR));
        highlightColorSelector
                .setColorValue(PreferenceHandler.getDefaultRGB(PreferenceHandler.PREF_DDL_HIGHLIGHTCOLOR));

        defaultCommentColor = defaultStringColor = defaultCodeColor = defaultKwColor = defaultHighlightColor = true;

        super.performDefaults();
    }

    public boolean performOk() {

        if (defaultCommentColor)
            PreferenceHandler.setDefaultRGB(PreferenceHandler.PREF_DDL_COMMENTCOLOR);
        else
            PreferenceHandler.setRGB(PreferenceHandler.PREF_DDL_COMMENTCOLOR, commentColorSelector.getColorValue());

        if (defaultStringColor)
            PreferenceHandler.setDefaultRGB(PreferenceHandler.PREF_DDL_STRINGCOLOR);
        else
            PreferenceHandler.setRGB(PreferenceHandler.PREF_DDL_STRINGCOLOR, stringColorSelector.getColorValue());

        if (defaultCodeColor)
            PreferenceHandler.setDefaultRGB(PreferenceHandler.PREF_DDL_CODECOLOR);
        else
            PreferenceHandler.setRGB(PreferenceHandler.PREF_DDL_CODECOLOR, codeColorSelector.getColorValue());

        if (defaultKwColor)
            PreferenceHandler.setDefaultRGB(PreferenceHandler.PREF_DDL_KWCOLOR);
        else
            PreferenceHandler.setRGB(PreferenceHandler.PREF_DDL_KWCOLOR, kwColorSelector.getColorValue());

        if (defaultHighlightColor)
            PreferenceHandler.setDefaultRGB(PreferenceHandler.PREF_DDL_HIGHLIGHTCOLOR);
        else
            PreferenceHandler.setRGB(PreferenceHandler.PREF_DDL_HIGHLIGHTCOLOR,
                    highlightColorSelector.getColorValue());

        return super.performOk();
    }

    public void propertyChange(PropertyChangeEvent event) {
        if (event.getSource() == commentColorSelector) {
            defaultCommentColor = false;
        } else if (event.getSource() == stringColorSelector) {
            defaultStringColor = false;
        } else if (event.getSource() == codeColorSelector) {
            defaultCodeColor = false;
        } else if (event.getSource() == kwColorSelector) {
            defaultKwColor = false;
        } else if (event.getSource() == highlightColorSelector) {
            defaultHighlightColor = false;
        }
    }
}