gtklookandfeel.java

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/*
 * @(#)GTKLookAndFeel.java	1.55 03/05/08
 *
 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package com.sun.java.swing.plaf.gtk;

import java.awt.*;
import java.io.File;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.HashMap;
import javax.swing.*;
import javax.swing.plaf.*;
import javax.swing.text.DefaultEditorKit;
import java.io.IOException;

/**
 * @version 1.55, 05/08/03
 * @author Scott Violet
 */
public class GTKLookAndFeel extends SynthLookAndFeel {
    /**
     * Font to use in places where there is no widget.
     */
    private Font fallbackFont;

    /**
     * Maps a swing constant to a GTK constant.
     */
    static int SwingOrientationConstantToGTK(int side) {
        switch (side) {
        case SwingConstants.LEFT:
            return GTKConstants.LEFT;
        case SwingConstants.RIGHT:
            return GTKConstants.RIGHT;
        case SwingConstants.TOP:
            return GTKConstants.TOP;
        case SwingConstants.BOTTOM:
            return GTKConstants.BOTTOM;
        }
        assert false : "Unknowning orientation: " + side;
        return side;
    }

    /**
     * Maps from a Synth state to the corresponding GTK state. 
     * The GTK states are named differently than Synth's states, the
     * following gives the mapping:
     * <table><tr><td>Synth<td>GTK
     * <tr><td>SynthConstants.PRESSED<td>ACTIVE
     * <tr><td>SynthConstants.SELECTED<td>SELECTED
     * <tr><td>SynthConstants.MOUSE_OVER<td>PRELIGHT
     * <tr><td>SynthConstants.DISABLED<td>INACTIVE
     * <tr><td>SynthConstants.ENABLED<td>NORMAL
     * </table>
     * Additionally some widgets are special cased.
     */
    static int synthStateToGTKState(Region region, int state) {
        int orgState = state;

        if ((state & SynthConstants.PRESSED) != 0) {
            if (region == Region.RADIO_BUTTON
                    || region == Region.CHECK_BOX
                    || region == Region.TOGGLE_BUTTON
                    || region == Region.MENU
                    || region == Region.MENU_ITEM
                    || region == Region.RADIO_BUTTON_MENU_ITEM
                    || region == Region.CHECK_BOX_MENU_ITEM
                    || region == Region.SPLIT_PANE) {
                state = SynthConstants.MOUSE_OVER;
            } else {
                state = SynthConstants.PRESSED;
            }
        }
        else if ((state & SynthConstants.SELECTED) != 0) {
            if (region == Region.MENU) {
                state = SynthConstants.MOUSE_OVER;
            } else if (region == Region.RADIO_BUTTON ||
                          region == Region.TOGGLE_BUTTON ||
                          region == Region.RADIO_BUTTON_MENU_ITEM ||
                          region == Region.CHECK_BOX_MENU_ITEM ||
                          region == Region.CHECK_BOX ||
                          region == Region.BUTTON) {
                // If the button is SELECTED and is PRELIGHT we need to
                // make the state MOUSE_OVER otherwise we don't paint the
                // PRELIGHT.
                if ((state & SynthConstants.MOUSE_OVER) != 0) {
                    state = SynthConstants.MOUSE_OVER;
                } else {
                    state = SynthConstants.PRESSED;
                }
            } else if (region == Region.TABBED_PANE_TAB) {
                state = SynthConstants.ENABLED;
            } else {
                state = SynthConstants.SELECTED;
            }
        }
        else if ((state & SynthConstants.MOUSE_OVER) != 0) {
            state = SynthConstants.MOUSE_OVER;
        }
        else if ((state & SynthConstants.DISABLED) != 0) {
            state = SynthConstants.DISABLED;
        }
        else {
            if (region == Region.SLIDER_TRACK) {
                state = SynthConstants.PRESSED;
            } else if (region == Region.TABBED_PANE_TAB) {
                state = SynthConstants.PRESSED;
            } else {
                state = SynthConstants.ENABLED;
            }
        }
        return state;
    }

    static boolean isText(Region region) {
        // These Regions treat FOREGROUND as TEXT.
        return (region == Region.TEXT_FIELD ||
                region == Region.FORMATTED_TEXT_FIELD ||
                region == Region.LIST ||
                region == Region.PASSWORD_FIELD ||
                region == Region.SPINNER ||
                region == Region.TABLE ||
                region == Region.TEXT_AREA ||
                region == Region.TEXT_FIELD ||
                region == Region.TEXT_PANE ||
                region == Region.TREE);
    }

    public UIDefaults getDefaults() {
        // We need to call super for basic's properties file.
        UIDefaults table = super.getDefaults();

	table.put("FileChooserUI", "com.sun.java.swing.plaf.gtk.GTKLookAndFeel");

        table.addResourceBundle(
              "com.sun.java.swing.plaf.gtk.resources.gtk" );

        Object tempBorder = new GTKStyle.GTKLazyValue(
            "com.sun.java.swing.plaf.gtk.GTKPainter$ListTableFocusBorder");
        table.put("List.focusCellHighlightBorder", tempBorder);
        table.put("Table.focusCellHighlightBorder", tempBorder);

        // These exist for better backward compatability with existing apps
        // that use these directly and don't check for null.
        table.put("Table.gridColor", new ColorUIResource(Color.gray));
        table.put("Table.selectionForeground",
                  new ColorUIResource(Color.BLACK));
        table.put("Table.selectionBackground", new ColorUIResource(0x000080));
        table.put("control", new ColorUIResource(0xC0C0C0));

        if (fallbackFont != null) {
            table.put("TitledBorder.font", fallbackFont);
        }
        table.put("TitledBorder.titleColor", new ColorUIResource(Color.BLACK));
        table.put("TitledBorder.border", new UIDefaults.ProxyLazyValue(
                      "javax.swing.plaf.BorderUIResource",
                      "getEtchedBorderUIResource"));

        return table;
    }


    /**
     * Creates the GTK look and feel class for the passed in Component.
     */
    public static ComponentUI createUI(JComponent c) {
        String key = c.getUIClassID().intern();

        if (key == "FileChooserUI") {
            return GTKFileChooserUI.createUI(c);
	}
        // PENDING: this is only necessary while gtk and synth are in the
        // same package.
        return SynthLookAndFeel.createUI(c);
    }

    public void initialize() {
	loadStylesFromThemeFiles();
    }

    public boolean isSupportedLookAndFeel() {
        return true;
    }

    public boolean isNativeLookAndFeel() {
        return false;
    }

    public String getDescription() {
        return "GTK look and feel";
    }

    public String getName() {
        return "GTK look and feel";
    }

    public String getID() {
        return "GTK";
    }

    private void loadStylesFromThemeFiles() {
        AccessController.doPrivileged(new PrivilegedAction() {
            public Object run() {
                GTKParser parser = new GTKParser();