annotate dwt/custom/ScrolledComposite.d @ 238:380bad9f6852

reverted char[] to String
author Frank Benoit <benoit@tionex.de>
date Mon, 05 May 2008 00:42:55 +0200
parents f2e04420fd6c
children ce446666f5a2
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2006 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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0f12f6bb9739 author notice
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
102
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12 *******************************************************************************/
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13 module dwt.custom.ScrolledComposite;
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14
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15 import dwt.dwthelper.utils;
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16
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17
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18 import dwt.DWT;
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19 import dwt.DWTException;
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20 import dwt.graphics.Point;
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21 import dwt.graphics.Rectangle;
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22 import dwt.widgets.Composite;
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23 import dwt.widgets.Control;
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24 import dwt.widgets.Event;
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25 import dwt.widgets.Layout;
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26 import dwt.widgets.Listener;
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27 import dwt.widgets.ScrollBar;
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0179b2e17eb2 Package custom compiles
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28 import dwt.custom.ScrolledCompositeLayout;
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29
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30 /**
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31 * A ScrolledComposite provides scrollbars and will scroll its content when the user
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32 * uses the scrollbars.
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33 *
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34 *
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35 * <p>There are two ways to use the ScrolledComposite:
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36 *
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37 * <p>
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38 * 1) Set the size of the control that is being scrolled and the ScrolledComposite
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39 * will show scrollbars when the contained control can not be fully seen.
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40 *
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41 * 2) The second way imitates the way a browser would work. Set the minimum size of
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42 * the control and the ScrolledComposite will show scroll bars if the visible area is
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43 * less than the minimum size of the control and it will expand the size of the control
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44 * if the visible area is greater than the minimum size. This requires invoking
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45 * both setMinWidth(), setMinHeight() and setExpandHorizontal(), setExpandVertical().
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46 *
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47 * <code><pre>
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48 * public static void main (String [] args) {
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49 * Display display = new Display ();
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50 * Color red = display.getSystemColor(DWT.COLOR_RED);
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51 * Color blue = display.getSystemColor(DWT.COLOR_BLUE);
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52 * Shell shell = new Shell (display);
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53 * shell.setLayout(new FillLayout());
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54 *
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55 * // set the size of the scrolled content - method 1
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56 * final ScrolledComposite sc1 = new ScrolledComposite(shell, DWT.H_SCROLL | DWT.V_SCROLL | DWT.BORDER);
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57 * final Composite c1 = new Composite(sc1, DWT.NONE);
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58 * sc1.setContent(c1);
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59 * c1.setBackground(red);
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60 * GridLayout layout = new GridLayout();
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61 * layout.numColumns = 4;
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62 * c1.setLayout(layout);
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63 * Button b1 = new Button (c1, DWT.PUSH);
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64 * b1.setText("first button");
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65 * c1.setSize(c1.computeSize(DWT.DEFAULT, DWT.DEFAULT));
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66 *
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67 * // set the minimum width and height of the scrolled content - method 2
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68 * final ScrolledComposite sc2 = new ScrolledComposite(shell, DWT.H_SCROLL | DWT.V_SCROLL | DWT.BORDER);
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69 * sc2.setExpandHorizontal(true);
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70 * sc2.setExpandVertical(true);
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71 * final Composite c2 = new Composite(sc2, DWT.NONE);
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72 * sc2.setContent(c2);
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73 * c2.setBackground(blue);
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74 * layout = new GridLayout();
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75 * layout.numColumns = 4;
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76 * c2.setLayout(layout);
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77 * Button b2 = new Button (c2, DWT.PUSH);
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78 * b2.setText("first button");
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79 * sc2.setMinSize(c2.computeSize(DWT.DEFAULT, DWT.DEFAULT));
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80 *
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81 * Button add = new Button (shell, DWT.PUSH);
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82 * add.setText("add children");
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83 * final int[] index = new int[]{0};
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84 * add.addListener(DWT.Selection, new Listener() {
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85 * public void handleEvent(Event e) {
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86 * index[0]++;
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87 * Button button = new Button(c1, DWT.PUSH);
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88 * button.setText("button "+index[0]);
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89 * // reset size of content so children can be seen - method 1
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90 * c1.setSize(c1.computeSize(DWT.DEFAULT, DWT.DEFAULT));
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91 * c1.layout();
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92 *
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93 * button = new Button(c2, DWT.PUSH);
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94 * button.setText("button "+index[0]);
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95 * // reset the minimum width and height so children can be seen - method 2
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96 * sc2.setMinSize(c2.computeSize(DWT.DEFAULT, DWT.DEFAULT));
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97 * c2.layout();
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98 * }
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99 * });
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100 *
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101 * shell.open ();
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102 * while (!shell.isDisposed ()) {
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103 * if (!display.readAndDispatch ()) display.sleep ();
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104 * }
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105 * display.dispose ();
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106 * }
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107 * </pre></code>
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108 *
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109 * <dl>
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110 * <dt><b>Styles:</b><dd>H_SCROLL, V_SCROLL
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111 * </dl>
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112 */
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113 public class ScrolledComposite : Composite {
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114
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115 Control content;
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116 Listener contentListener;
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117
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118 int minHeight = 0;
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119 int minWidth = 0;
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120 bool expandHorizontal = false;
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121 bool expandVertical = false;
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122 bool alwaysShowScroll = false;
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123
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124 /**
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125 * Constructs a new instance of this class given its parent
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126 * and a style value describing its behavior and appearance.
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127 * <p>
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128 * The style value is either one of the style constants defined in
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129 * class <code>DWT</code> which is applicable to instances of this
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130 * class, or must be built by <em>bitwise OR</em>'ing together
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131 * (that is, using the <code>int</code> "|" operator) two or more
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132 * of those <code>DWT</code> style constants. The class description
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133 * lists the style constants that are applicable to the class.
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134 * Style bits are also inherited from superclasses.
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135 * </p>
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136 *
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137 * @param parent a widget which will be the parent of the new instance (cannot be null)
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138 * @param style the style of widget to construct
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139 *
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140 * @exception IllegalArgumentException <ul>
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141 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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142 * </ul>
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143 * @exception DWTException <ul>
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144 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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145 * </ul>
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146 *
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147 * @see DWT#H_SCROLL
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148 * @see DWT#V_SCROLL
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149 * @see #getStyle()
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150 */
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151 public this(Composite parent, int style) {
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152 super(parent, checkStyle(style));
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153 super.setLayout(new ScrolledCompositeLayout());
12e3e0e477cd package custom, module and imports ok
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diff changeset
154 ScrollBar hBar = getHorizontalBar ();
12e3e0e477cd package custom, module and imports ok
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diff changeset
155 if (hBar !is null) {
12e3e0e477cd package custom, module and imports ok
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diff changeset
156 hBar.setVisible(false);
12e3e0e477cd package custom, module and imports ok
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diff changeset
157 hBar.addListener (DWT.Selection, new class() Listener {
12e3e0e477cd package custom, module and imports ok
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diff changeset
158 public void handleEvent (Event e) {
12e3e0e477cd package custom, module and imports ok
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diff changeset
159 hScroll();
12e3e0e477cd package custom, module and imports ok
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diff changeset
160 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
161 });
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
162 }
12e3e0e477cd package custom, module and imports ok
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diff changeset
163
12e3e0e477cd package custom, module and imports ok
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diff changeset
164 ScrollBar vBar = getVerticalBar ();
12e3e0e477cd package custom, module and imports ok
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diff changeset
165 if (vBar !is null) {
12e3e0e477cd package custom, module and imports ok
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diff changeset
166 vBar.setVisible(false);
12e3e0e477cd package custom, module and imports ok
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diff changeset
167 vBar.addListener (DWT.Selection, new class() Listener {
12e3e0e477cd package custom, module and imports ok
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diff changeset
168 public void handleEvent (Event e) {
12e3e0e477cd package custom, module and imports ok
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diff changeset
169 vScroll();
12e3e0e477cd package custom, module and imports ok
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diff changeset
170 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
171 });
12e3e0e477cd package custom, module and imports ok
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172 }
12e3e0e477cd package custom, module and imports ok
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diff changeset
173
12e3e0e477cd package custom, module and imports ok
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diff changeset
174 contentListener = new class() Listener {
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diff changeset
175 public void handleEvent(Event e) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
176 if (e.type !is DWT.Resize) return;
12e3e0e477cd package custom, module and imports ok
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diff changeset
177 layout(false);
12e3e0e477cd package custom, module and imports ok
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178 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
179 };
12e3e0e477cd package custom, module and imports ok
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180 }
12e3e0e477cd package custom, module and imports ok
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181
12e3e0e477cd package custom, module and imports ok
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diff changeset
182 static int checkStyle (int style) {
12e3e0e477cd package custom, module and imports ok
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183 int mask = DWT.H_SCROLL | DWT.V_SCROLL | DWT.BORDER | DWT.LEFT_TO_RIGHT | DWT.RIGHT_TO_LEFT;
12e3e0e477cd package custom, module and imports ok
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184 return style & mask;
12e3e0e477cd package custom, module and imports ok
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185 }
12e3e0e477cd package custom, module and imports ok
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186
12e3e0e477cd package custom, module and imports ok
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diff changeset
187 /**
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diff changeset
188 * Returns the Always Show Scrollbars flag. True if the scrollbars are
12e3e0e477cd package custom, module and imports ok
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189 * always shown even if they are not required. False if the scrollbars are only
12e3e0e477cd package custom, module and imports ok
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190 * visible when some part of the composite needs to be scrolled to be seen.
12e3e0e477cd package custom, module and imports ok
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191 * The H_SCROLL and V_SCROLL style bits are also required to enable scrollbars in the
12e3e0e477cd package custom, module and imports ok
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192 * horizontal and vertical directions.
12e3e0e477cd package custom, module and imports ok
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193 *
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194 * @return the Always Show Scrollbars flag value
12e3e0e477cd package custom, module and imports ok
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195 */
12e3e0e477cd package custom, module and imports ok
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diff changeset
196 public bool getAlwaysShowScrollBars() {
12e3e0e477cd package custom, module and imports ok
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197 //checkWidget();
12e3e0e477cd package custom, module and imports ok
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diff changeset
198 return alwaysShowScroll;
12e3e0e477cd package custom, module and imports ok
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199 }
12e3e0e477cd package custom, module and imports ok
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200
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
201 /**
12e3e0e477cd package custom, module and imports ok
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diff changeset
202 * Returns <code>true</code> if the content control
12e3e0e477cd package custom, module and imports ok
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203 * will be expanded to fill available horizontal space.
12e3e0e477cd package custom, module and imports ok
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204 *
12e3e0e477cd package custom, module and imports ok
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diff changeset
205 * @return the receiver's horizontal expansion state
12e3e0e477cd package custom, module and imports ok
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diff changeset
206 *
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diff changeset
207 * @exception DWTException <ul>
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208 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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209 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
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210 * </ul>
12e3e0e477cd package custom, module and imports ok
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diff changeset
211 *
12e3e0e477cd package custom, module and imports ok
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diff changeset
212 * @since 3.2
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213 */
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diff changeset
214 public bool getExpandHorizontal() {
12e3e0e477cd package custom, module and imports ok
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diff changeset
215 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
216 return expandHorizontal;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
217 }
12e3e0e477cd package custom, module and imports ok
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diff changeset
218
12e3e0e477cd package custom, module and imports ok
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diff changeset
219 /**
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diff changeset
220 * Returns <code>true</code> if the content control
12e3e0e477cd package custom, module and imports ok
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221 * will be expanded to fill available vertical space.
12e3e0e477cd package custom, module and imports ok
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222 *
12e3e0e477cd package custom, module and imports ok
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diff changeset
223 * @return the receiver's vertical expansion state
12e3e0e477cd package custom, module and imports ok
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diff changeset
224 *
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diff changeset
225 * @exception DWTException <ul>
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diff changeset
226 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
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227 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
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228 * </ul>
12e3e0e477cd package custom, module and imports ok
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229 *
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230 * @since 3.2
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231 */
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diff changeset
232 public bool getExpandVertical() {
12e3e0e477cd package custom, module and imports ok
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233 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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234 return expandVertical;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
235 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
236
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
237 /**
12e3e0e477cd package custom, module and imports ok
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diff changeset
238 * Returns the minimum width of the content control.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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239 *
12e3e0e477cd package custom, module and imports ok
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diff changeset
240 * @return the minimum width
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
241 *
12e3e0e477cd package custom, module and imports ok
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diff changeset
242 * @exception DWTException <ul>
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diff changeset
243 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
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244 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
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diff changeset
245 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
246 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
247 * @since 3.2
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248 */
12e3e0e477cd package custom, module and imports ok
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249 public int getMinWidth() {
12e3e0e477cd package custom, module and imports ok
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diff changeset
250 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
251 return minWidth;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
252 }
12e3e0e477cd package custom, module and imports ok
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253
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
254 /**
12e3e0e477cd package custom, module and imports ok
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255 * Returns the minimum height of the content control.
12e3e0e477cd package custom, module and imports ok
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diff changeset
256 *
12e3e0e477cd package custom, module and imports ok
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diff changeset
257 * @return the minimum height
12e3e0e477cd package custom, module and imports ok
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diff changeset
258 *
12e3e0e477cd package custom, module and imports ok
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diff changeset
259 * @exception DWTException <ul>
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diff changeset
260 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
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diff changeset
261 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
262 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
263 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
264 * @since 3.2
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
265 */
12e3e0e477cd package custom, module and imports ok
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diff changeset
266 public int getMinHeight() {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
267 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
268 return minHeight;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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269 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
270
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
271 /**
12e3e0e477cd package custom, module and imports ok
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diff changeset
272 * Get the content that is being scrolled.
12e3e0e477cd package custom, module and imports ok
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diff changeset
273 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
274 * @return the control displayed in the content area
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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275 */
12e3e0e477cd package custom, module and imports ok
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diff changeset
276 public Control getContent() {
12e3e0e477cd package custom, module and imports ok
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diff changeset
277 //checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
278 return content;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
279 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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280
12e3e0e477cd package custom, module and imports ok
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diff changeset
281 void hScroll() {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
282 if (content is null) return;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
283 Point location = content.getLocation ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
284 ScrollBar hBar = getHorizontalBar ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
285 int hSelection = hBar.getSelection ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
286 content.setLocation (-hSelection, location.y);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
287 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
288 bool needHScroll(Rectangle contentRect, bool vVisible) {
12e3e0e477cd package custom, module and imports ok
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diff changeset
289 ScrollBar hBar = getHorizontalBar();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
290 if (hBar is null) return false;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
291
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
292 Rectangle hostRect = getBounds();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
293 int border = getBorderWidth();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
294 hostRect.width -= 2*border;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
295 ScrollBar vBar = getVerticalBar();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
296 if (vVisible && vBar !is null) hostRect.width -= vBar.getSize().x;
12e3e0e477cd package custom, module and imports ok
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diff changeset
297
12e3e0e477cd package custom, module and imports ok
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diff changeset
298 if (!expandHorizontal && contentRect.width > hostRect.width) return true;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
299 if (expandHorizontal && minWidth > hostRect.width) return true;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
300 return false;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
301 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
302
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
303 bool needVScroll(Rectangle contentRect, bool hVisible) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
304 ScrollBar vBar = getVerticalBar();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
305 if (vBar is null) return false;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
306
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
307 Rectangle hostRect = getBounds();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
308 int border = getBorderWidth();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
309 hostRect.height -= 2*border;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
310 ScrollBar hBar = getHorizontalBar();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
311 if (hVisible && hBar !is null) hostRect.height -= hBar.getSize().y;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
312
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
313 if (!expandVertical && contentRect.height > hostRect.height) return true;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
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diff changeset
314 if (expandVertical && minHeight > hostRect.height) return true;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
315 return false;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
316 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
317
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
318 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
319 * Return the point in the content that currently appears in the top left
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
320 * corner of the scrolled composite.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
321 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
322 * @return the point in the content that currently appears in the top left
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
323 * corner of the scrolled composite. If no content has been set, this returns
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
324 * (0, 0).
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
325 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
326 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
327 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
328 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
329 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
330 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
331 * @since 2.0
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
332 */
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
333 public Point getOrigin() {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
334 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
335 if (content is null) return new Point(0, 0);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
336 Point location = content.getLocation();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
337 return new Point(-location.x, -location.y);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
338 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
339 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
340 * Scrolls the content so that the specified point in the content is in the top
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
341 * left corner. If no content has been set, nothing will occur.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
342 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
343 * Negative values will be ignored. Values greater than the maximum scroll
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
344 * distance will result in scrolling to the end of the scrollbar.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
345 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
346 * @param origin the point on the content to appear in the top left corner
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
347 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
348 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
349 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
350 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
351 * <li>ERROR_INVALID_ARGUMENT - value of origin is outside of content
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
352 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
353 * @since 2.0
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
354 */
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
355 public void setOrigin(Point origin) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
356 setOrigin(origin.x, origin.y);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
357 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
358 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
359 * Scrolls the content so that the specified point in the content is in the top
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
360 * left corner. If no content has been set, nothing will occur.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
361 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
362 * Negative values will be ignored. Values greater than the maximum scroll
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
363 * distance will result in scrolling to the end of the scrollbar.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
364 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
365 * @param x the x coordinate of the content to appear in the top left corner
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
366 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
367 * @param y the y coordinate of the content to appear in the top left corner
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
368 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
369 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
370 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
371 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
372 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
373 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
374 * @since 2.0
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
375 */
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
376 public void setOrigin(int x, int y) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
377 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
378 if (content is null) return;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
379 ScrollBar hBar = getHorizontalBar ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
380 if (hBar !is null) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
381 hBar.setSelection(x);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
382 x = -hBar.getSelection ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
383 } else {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
384 x = 0;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
385 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
386 ScrollBar vBar = getVerticalBar ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
387 if (vBar !is null) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
388 vBar.setSelection(y);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
389 y = -vBar.getSelection ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
390 } else {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
391 y = 0;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
392 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
393 content.setLocation(x, y);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
394 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
395 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
396 * Set the Always Show Scrollbars flag. True if the scrollbars are
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
397 * always shown even if they are not required. False if the scrollbars are only
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
398 * visible when some part of the composite needs to be scrolled to be seen.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
399 * The H_SCROLL and V_SCROLL style bits are also required to enable scrollbars in the
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
400 * horizontal and vertical directions.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
401 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
402 * @param show true to show the scrollbars even when not required, false to show scrollbars only when required
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
403 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
404 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
405 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
406 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
407 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
408 */
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
409 public void setAlwaysShowScrollBars(bool show) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
410 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
411 if (show is alwaysShowScroll) return;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
412 alwaysShowScroll = show;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
413 ScrollBar hBar = getHorizontalBar ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
414 if (hBar !is null && alwaysShowScroll) hBar.setVisible(true);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
415 ScrollBar vBar = getVerticalBar ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
416 if (vBar !is null && alwaysShowScroll) vBar.setVisible(true);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
417 layout(false);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
418 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
419
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
420 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
421 * Set the content that will be scrolled.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
422 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
423 * @param content the control to be displayed in the content area
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
424 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
425 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
426 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
427 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
428 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
429 */
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
430 public void setContent(Control content) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
431 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
432 if (this.content !is null && !this.content.isDisposed()) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
433 this.content.removeListener(DWT.Resize, contentListener);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
434 this.content.setBounds(new Rectangle(-200, -200, 0, 0));
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
435 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
436
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
437 this.content = content;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
438 ScrollBar vBar = getVerticalBar ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
439 ScrollBar hBar = getHorizontalBar ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
440 if (this.content !is null) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
441 if (vBar !is null) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
442 vBar.setMaximum (0);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
443 vBar.setThumb (0);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
444 vBar.setSelection(0);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
445 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
446 if (hBar !is null) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
447 hBar.setMaximum (0);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
448 hBar.setThumb (0);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
449 hBar.setSelection(0);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
450 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
451 content.setLocation(0, 0);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
452 layout(false);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
453 this.content.addListener(DWT.Resize, contentListener);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
454 } else {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
455 if (hBar !is null) hBar.setVisible(alwaysShowScroll);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
456 if (vBar !is null) vBar.setVisible(alwaysShowScroll);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
457 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
458 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
459 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
460 * Configure the ScrolledComposite to resize the content object to be as wide as the
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
461 * ScrolledComposite when the width of the ScrolledComposite is greater than the
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
462 * minimum width specified in setMinWidth. If the ScrolledComposite is less than the
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
463 * minimum width, the content will not be resized and instead the horizontal scroll bar will be
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
464 * used to view the entire width.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
465 * If expand is false, this behaviour is turned off. By default, this behaviour is turned off.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
466 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
467 * @param expand true to expand the content control to fill available horizontal space
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
468 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
469 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
470 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
471 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
472 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
473 */
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
474 public void setExpandHorizontal(bool expand) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
475 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
476 if (expand is expandHorizontal) return;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
477 expandHorizontal = expand;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
478 layout(false);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
479 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
480 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
481 * Configure the ScrolledComposite to resize the content object to be as tall as the
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
482 * ScrolledComposite when the height of the ScrolledComposite is greater than the
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
483 * minimum height specified in setMinHeight. If the ScrolledComposite is less than the
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
484 * minimum height, the content will not be resized and instead the vertical scroll bar will be
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
485 * used to view the entire height.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
486 * If expand is false, this behaviour is turned off. By default, this behaviour is turned off.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
487 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
488 * @param expand true to expand the content control to fill available vertical space
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
489 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
490 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
491 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
492 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
493 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
494 */
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
495 public void setExpandVertical(bool expand) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
496 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
497 if (expand is expandVertical) return;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
498 expandVertical = expand;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
499 layout(false);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
500 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
501 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
502 * Sets the layout which is associated with the receiver to be
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
503 * the argument which may be null.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
504 * <p>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
505 * Note: No Layout can be set on this Control because it already
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
506 * manages the size and position of its children.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
507 * </p>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
508 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
509 * @param layout the receiver's new layout or null
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
510 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
511 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
512 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
513 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
514 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
515 */
150
f2e04420fd6c reworked overrides and superclass aliases
Frank Benoit <benoit@tionex.de>
parents: 108
diff changeset
516 public override void setLayout (Layout layout) {
102
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
517 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
518 return;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
519 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
520 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
521 * Specify the minimum height at which the ScrolledComposite will begin scrolling the
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
522 * content with the vertical scroll bar. This value is only relevant if
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
523 * setExpandVertical(true) has been set.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
524 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
525 * @param height the minimum height or 0 for default height
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
526 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
527 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
528 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
529 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
530 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
531 */
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
532 public void setMinHeight(int height) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
533 setMinSize(minWidth, height);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
534 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
535 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
536 * Specify the minimum width and height at which the ScrolledComposite will begin scrolling the
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
537 * content with the horizontal scroll bar. This value is only relevant if
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
538 * setExpandHorizontal(true) and setExpandVertical(true) have been set.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
539 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
540 * @param size the minimum size or null for the default size
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
541 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
542 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
543 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
544 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
545 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
546 */
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
547 public void setMinSize(Point size) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
548 if (size is null) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
549 setMinSize(0, 0);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
550 } else {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
551 setMinSize(size.x, size.y);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
552 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
553 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
554 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
555 * Specify the minimum width and height at which the ScrolledComposite will begin scrolling the
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
556 * content with the horizontal scroll bar. This value is only relevant if
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
557 * setExpandHorizontal(true) and setExpandVertical(true) have been set.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
558 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
559 * @param width the minimum width or 0 for default width
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
560 * @param height the minimum height or 0 for default height
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
561 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
562 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
563 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
564 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
565 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
566 */
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
567 public void setMinSize(int width, int height) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
568 checkWidget();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
569 if (width is minWidth && height is minHeight) return;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
570 minWidth = Math.max(0, width);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
571 minHeight = Math.max(0, height);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
572 layout(false);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
573 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
574 /**
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
575 * Specify the minimum width at which the ScrolledComposite will begin scrolling the
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
576 * content with the horizontal scroll bar. This value is only relevant if
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
577 * setExpandHorizontal(true) has been set.
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
578 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
579 * @param width the minimum width or 0 for default width
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
580 *
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
581 * @exception DWTException <ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
582 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
583 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
584 * </ul>
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
585 */
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
586 public void setMinWidth(int width) {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
587 setMinSize(width, minHeight);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
588 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
589
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
590 void vScroll() {
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
591 if (content is null) return;
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
592 Point location = content.getLocation ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
593 ScrollBar vBar = getVerticalBar ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
594 int vSelection = vBar.getSelection ();
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
595 content.setLocation (location.x, -vSelection);
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
596 }
12e3e0e477cd package custom, module and imports ok
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
597 }