/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation and others.
 * 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
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 * Port to the D programming language:
 *     yidabu at gmail dot com  ( D China http://www.d-programming-language-china.org/ )
 *******************************************************************************/

module org.eclipse.swt.snippets.Snippet222;
/*
 * example snippet: StyledText bulleted list example
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 *
 * @since 3.2
 */

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.custom.PaintObjectEvent;
import org.eclipse.swt.custom.PaintObjectListener;
import org.eclipse.swt.custom.Bullet;
import org.eclipse.swt.custom.ST;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.TextLayout;
import org.eclipse.swt.graphics.GlyphMetrics;
version(Tango){
    import tango.util.Convert;
} else { // Phobos
    import std.conv;
}

import java.lang.all;
version(JIVE){
    import jive.stacktrace;
}

void main() {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setText("StyledText Bullet Example");
    shell.setLayout(new FillLayout());
    StyledText styledText = new StyledText (shell, SWT.FULL_SELECTION | SWT.BORDER | SWT.WRAP | SWT.V_SCROLL);
    StringBuffer text = new StringBuffer();
    text.append("Here is StyledText with some bulleted lists:\n\n");
    for (int i = 0; i < 4; i++) text.append("Red Bullet List Item " ~ to!(String)(i) ~ "\n");
    text.append("\n");
    for (int i = 0; i < 2; i++) text.append("Numbered List Item " ~ to!(String)(i) ~ "\n");
    for (int i = 0; i < 4; i++) text.append("Sub List Item " ~ to!(String)(i) ~ "\n");
    for (int i = 0; i < 2; i++) text.append("Numbered List Item " ~ to!(String)(2+i) ~ "\n");
    text.append("\n");
    for (int i = 0; i < 4; i++) text.append("Custom Draw List Item " ~ to!(String)(i) ~ "\n");
    styledText.setText(text.toString());

    StyleRange style0 = new StyleRange();
    style0.metrics = new GlyphMetrics(0, 0, 40);
    style0.foreground = display.getSystemColor(SWT.COLOR_RED);
    Bullet bullet0 = new Bullet (style0);
    StyleRange style1 = new StyleRange();
    style1.metrics = new GlyphMetrics(0, 0, 50);
    style1.foreground = display.getSystemColor(SWT.COLOR_BLUE);
    Bullet bullet1 = new Bullet (ST.BULLET_NUMBER | ST.BULLET_TEXT, style1);
    bullet1.text = ".";
    StyleRange style2 = new StyleRange();
    style2.metrics = new GlyphMetrics(0, 0, 80);
    style2.foreground = display.getSystemColor(SWT.COLOR_GREEN);
    Bullet bullet2 = new Bullet (ST.BULLET_TEXT, style2);
    bullet2.text = "\u2713";
    StyleRange style3 = new StyleRange();
    style3.metrics = new GlyphMetrics(0, 0, 50);
    Bullet bullet3 = new Bullet (ST.BULLET_CUSTOM, style2);

    styledText.setLineBullet(2, 4, bullet0);
    styledText.setLineBullet(7, 2, bullet1);
    styledText.setLineBullet(9, 4, bullet2);
    styledText.setLineBullet(13, 2, bullet1);
    styledText.setLineBullet(16, 4, bullet3);

    styledText.addPaintObjectListener(new class PaintObjectListener {
        public void paintObject(PaintObjectEvent event) {
            Display display = event.display;
            StyleRange style = event.style;
            Font font = style.font;
            if (font is null) font = styledText.getFont();
            TextLayout layout = new TextLayout(display);
            layout.setAscent(event.ascent);
            layout.setDescent(event.descent);
            layout.setFont(font);
            layout.setText("\u2023 1." ~ to!(String)( event.bulletIndex) ~ ")");
            layout.draw(event.gc, event.x + 10, event.y);
            layout.dispose();
        }
    });
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch()) display.sleep();
    }
    display.dispose ();
}