| /******************************************************************************* |
| * Copyright (c) 2006 Sybase, Inc. 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: |
| * Sybase, Inc. - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.pagedesigner.css2.widget; |
| |
| import org.eclipse.draw2d.ColorConstants; |
| import org.eclipse.draw2d.FigureUtilities; |
| import org.eclipse.draw2d.Graphics; |
| import org.eclipse.draw2d.geometry.Rectangle; |
| import org.eclipse.jst.pagedesigner.css2.ICSSStyle; |
| import org.eclipse.jst.pagedesigner.css2.font.ICSSFont; |
| import org.eclipse.jst.pagedesigner.css2.provider.DimensionInfo; |
| import org.eclipse.jst.pagedesigner.css2.style.DefaultStyle; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.Font; |
| import org.eclipse.swt.graphics.RGB; |
| import org.eclipse.swt.widgets.Display; |
| |
| /** |
| * @author mengbo |
| * @version 1.5 |
| */ |
| public class ListWidgetProvider extends AbstractWidgetProvider { |
| private static int DEFAULTSIZE = 4; |
| |
| private static final int VERTICAL_PADDING = 6; |
| |
| private static final int HORIZONTAL_PADDING = 12; |
| |
| private static int ARRAWWIDTH = 16; |
| |
| private static int ARROWHEIGHT = 16; |
| |
| private String[] _options; |
| |
| private int _rows = DEFAULTSIZE; |
| |
| public ListWidgetProvider(ICSSStyle style) { |
| super(style); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jst.pagedesigner.css2.provider.ICSSWidgetProvider#getPreferredDimension(int, |
| * int) |
| */ |
| public DimensionInfo getPreferredDimension(int width, int height) { |
| if (width <= 0) { |
| width = getDefaultWidth(); |
| } |
| if (height <= 0) { |
| height = getDefaultHeight(); |
| } |
| return new DimensionInfo(width, height, -1); |
| } |
| |
| /** |
| * by default, the combo's width will be calculated from the longest option |
| * value. |
| * |
| * @return |
| */ |
| public int getDefaultWidth() { |
| int longestStringWidth = 0; |
| if (_options != null) { |
| ICSSStyle style = this.getCSSStyle(); |
| if (style == null) { |
| style = DefaultStyle.getInstance(); |
| } |
| ICSSFont font = style.getCSSFont(); |
| Font swtFont = font.getSwtFont(); |
| for (int i = 0; i < _options.length; i++) { |
| int width = FigureUtilities.getTextWidth(_options[i], swtFont); |
| if (width > longestStringWidth) { |
| longestStringWidth = width; |
| } |
| } |
| } |
| // text area width + borderWidth + vertical scroll width |
| return (longestStringWidth) + HORIZONTAL_PADDING + ARRAWWIDTH; |
| } |
| |
| /** |
| * |
| * @return |
| * @see TextInputWidgetProvider#getDefaultHeight() |
| */ |
| public int getDefaultHeight() { |
| ICSSStyle style = this.getCSSStyle(); |
| if (style == null) { |
| style = DefaultStyle.getInstance(); |
| } |
| ICSSFont font = style.getCSSFont(); |
| Font swtfont = font.getSwtFont(); |
| int fontHeight = FigureUtilities.getFontMetrics(swtfont).getHeight(); |
| return (fontHeight) * _rows + VERTICAL_PADDING; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jst.pagedesigner.css2.provider.ICSSWidgetProvider#paintFigure(org.eclipse.draw2d.Graphics, |
| * org.eclipse.draw2d.geometry.Rectangle) |
| */ |
| public void paintFigure(Graphics g, Rectangle rect) { |
| BorderUtil.drawBorder(g, rect.x, rect.y, rect.width, rect.height, |
| BORDERTHICK, true); |
| if (_options != null) { |
| ICSSStyle style = this.getCSSStyle(); |
| if (style == null) { |
| style = DefaultStyle.getInstance(); |
| } |
| ICSSFont font = style.getCSSFont(); |
| Font swtfont = font.getSwtFont(); |
| g.setFont(swtfont); |
| |
| Color newColor = null; |
| Object color = style.getColor(); |
| if (color instanceof Color) { |
| g.setForegroundColor((Color) color); |
| } else if (color instanceof RGB) { |
| newColor = new Color(Display.getCurrent(), (RGB) color); |
| g.setForegroundColor(newColor); |
| } else { |
| g.setForegroundColor(ColorConstants.black); |
| } |
| int fontHeight = FigureUtilities.getFontMetrics(swtfont) |
| .getHeight(); |
| int x = rect.x + HORIZONTAL_PADDING / 2; |
| int y = rect.y + VERTICAL_PADDING / 2; |
| |
| g.clipRect(rect); |
| for (int i = 0; i < _options.length |
| && (i * fontHeight < rect.height - VERTICAL_PADDING); i++) { |
| g.drawString(_options[i], x, y); |
| y += fontHeight; |
| } |
| if (newColor != null) { |
| newColor.dispose(); |
| } |
| |
| int borderThick = 2; |
| Rectangle barRect = new Rectangle(rect.x, rect.y + borderThick, |
| rect.width - borderThick, rect.height - 2 * borderThick); |
| BorderUtil.drawVertialBar(g, ARRAWWIDTH, ARROWHEIGHT, borderThick, |
| barRect); |
| } |
| } |
| |
| /** |
| * @param string |
| * @param x |
| * @param y |
| * @return |
| */ |
| private String normalize(String string) { |
| if (string == null) { |
| return ""; |
| } |
| int index = string.indexOf('\r'); |
| if (index >= 0) { |
| string = string.substring(0, index); |
| } |
| index = string.indexOf('\n'); |
| if (index >= 0) { |
| string = string.substring(0, index); |
| } |
| return string; |
| } |
| |
| /** |
| * set the options to be displayed in this combo box. |
| * |
| * @param options |
| */ |
| public void setOptions(String[] options) { |
| this._options = options; |
| if (_options != null) { |
| for (int i = 0; i < _options.length; i++) { |
| _options[i] = normalize(_options[i]); |
| } |
| } |
| } |
| |
| /** |
| * set the default number of rows to be displayed. |
| * |
| * @param rows |
| */ |
| public void setRows(int rows) { |
| _rows = (rows > 0 ? rows : DEFAULTSIZE); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jst.pagedesigner.css2.provider.ICSSWidgetProvider#isHandlingBorder() |
| */ |
| public boolean isHandlingBorder() { |
| return false; |
| } |
| } |