Mercurial > projects > dwt2
annotate org.eclipse.ui.forms/src/org/eclipse/ui/forms/widgets/TreeNode.d @ 12:bc29606a740c
Added dwt-addons in original directory structure of eclipse.org
author | Frank Benoit <benoit@tionex.de> |
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date | Sat, 14 Mar 2009 18:23:29 +0100 |
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2007 IBM Corporation and others. |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
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10 * Port to the D programming language: |
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11 * Frank Benoit <benoit@tionex.de> |
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12 *******************************************************************************/ |
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13 module org.eclipse.ui.forms.widgets.TreeNode; |
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14 |
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15 import org.eclipse.ui.forms.widgets.ToggleHyperlink; |
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16 |
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17 import org.eclipse.swt.SWT; |
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18 import org.eclipse.swt.events.PaintEvent; |
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19 import org.eclipse.swt.graphics.GC; |
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20 import org.eclipse.swt.graphics.Rectangle; |
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21 import org.eclipse.swt.widgets.Composite; |
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22 |
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23 import java.lang.all; |
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24 import java.util.Set; |
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25 |
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26 /** |
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27 * A custom selectable control that can be used to control areas that can be |
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28 * expanded or collapsed. The control control can be toggled between selected |
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29 * and deselected state with a mouse or by pressing 'Enter' while the control |
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30 * has focus. |
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31 * <p> |
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32 * The control is rendered as box with a '+' or '-' sign, depending on the |
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33 * expansion state. Focus indication is rendered around the box when the |
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34 * control has keyboard focus. |
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35 * |
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36 * @see Twistie |
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37 * @since 3.0 |
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38 */ |
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39 public class TreeNode : ToggleHyperlink { |
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40 /** |
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41 * Creates a control in a provided composite. |
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42 * |
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43 * @param parent |
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44 * the parent |
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45 * @param style |
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46 * the style |
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47 */ |
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48 public this(Composite parent, int style) { |
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49 super(parent, style); |
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50 innerWidth = 10; |
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51 innerHeight = 10; |
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52 } |
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53 protected void paint(PaintEvent e) { |
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54 paintHyperlink(e.gc); |
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55 } |
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56 protected void paintHyperlink(GC gc) { |
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57 Rectangle box = getBoxBounds(gc); |
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58 gc.setForeground(getDisplay().getSystemColor( |
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59 SWT.COLOR_WIDGET_NORMAL_SHADOW)); |
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60 gc.drawRectangle(box); |
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61 gc.setForeground(getForeground()); |
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62 gc.drawLine(box.x + 2, box.y + 4, box.x + 6, box.y + 4); |
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63 if (!isExpanded()) { |
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64 gc.drawLine(box.x + 4, box.y + 2, box.x + 4, box.y + 6); |
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65 } |
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66 if (paintFocus && getSelection()) { |
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67 gc.setForeground(getForeground()); |
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68 gc.drawFocus(box.x - 1, box.y - 1, box.width + 3, box.height + 3); |
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69 } |
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70 } |
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71 private Rectangle getBoxBounds(GC gc) { |
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72 int x = 1; |
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73 int y = 0; |
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74 gc.setFont(getFont()); |
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75 //int height = gc.getFontMetrics().getHeight(); |
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76 //y = height / 2 - 4; |
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77 //y = Math.max(y, 0); |
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78 y = 2; |
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79 return new Rectangle(x, y, 8, 8); |
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80 } |
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81 } |