cc.warlock.rcp.ui.WarlockPopupAction.java Source code

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Here is the source code for cc.warlock.rcp.ui.WarlockPopupAction.java

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/**
 * Warlock, the open-source cross-platform game client
 *  
 * Copyright 2008, Warlock LLC, and individual contributors as indicated
 * by the @authors tag. 
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package cc.warlock.rcp.ui;

import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;

public class WarlockPopupAction extends Composite implements PaintListener {

    private Composite parent;
    private Color background;
    private Font smallFont;

    private boolean fontSet = false;

    public WarlockPopupAction(Composite parent, int style) {
        super(parent, style);

        this.parent = parent;
        parent.addPaintListener(this);
        addPaintListener(this);

        this.background = new Color(getDisplay(), 239, 243, 193);
        setBackground(background);
        setCursor(getDisplay().getSystemCursor(SWT.CURSOR_ARROW));

        FontData defaultFontData = JFaceResources.getDefaultFont().getFontData()[0];
        int height = Math.max(8, defaultFontData.getHeight() - 1);

        smallFont = new Font(getDisplay(), defaultFontData.getName(), height, defaultFontData.getStyle());
        setFont(smallFont);
    }

    protected void setChildrenFont(Composite composite) {
        for (Control child : composite.getChildren()) {
            child.setFont(smallFont);
            if (child instanceof Composite) {
                setChildrenFont((Composite) child);
            }
        }
    }

    public void paintControl(PaintEvent e) {
        if (isVisible()) {
            if (!fontSet) {
                setChildrenFont(this);
                fontSet = true;
            }

            setLocation(0, 0);
            GC gc = e.gc;

            pack();
            Rectangle parentBounds = parent.getBounds();
            int height = getBounds().height;

            gc.setForeground(new Color(getDisplay(), 0, 0, 0));
            gc.setBackground(background);
            gc.fillRoundRectangle(0, 0, parentBounds.width, height - 4, 2, 2);

            gc.setBackground(new Color(getDisplay(), 164, 167, 133));
            gc.fillRectangle(0, height - 4, parentBounds.width, 4);
        }
    }

    @Override
    public void setVisible(boolean visible) {
        super.setVisible(visible);

        parent.redraw();

        if (visible) {
            for (Control child : getChildren()) {
                child.pack();
            }
        }
    }
}