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annotate org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/custom/ScrolledComposite.d @ 0:6dd524f61e62

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add dwt win and basic java stuff
author Frank Benoit <benoit@tionex.de>
date Mon, 02 Mar 2009 14:44:16 +0100
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2008 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.swt.custom.ScrolledComposite;
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14
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15 import java.lang.all;
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16
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17
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18 import org.eclipse.swt.SWT;
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19 import org.eclipse.swt.SWTException;
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20 import org.eclipse.swt.events.DisposeEvent;
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21 import org.eclipse.swt.events.DisposeListener;
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22 import org.eclipse.swt.graphics.Point;
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23 import org.eclipse.swt.graphics.Rectangle;
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24 import org.eclipse.swt.widgets.Composite;
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25 import org.eclipse.swt.widgets.Control;
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26 import org.eclipse.swt.widgets.Display;
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27 import org.eclipse.swt.widgets.Event;
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28 import org.eclipse.swt.widgets.Layout;
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29 import org.eclipse.swt.widgets.Listener;
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30 import org.eclipse.swt.widgets.ScrollBar;
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31 import org.eclipse.swt.widgets.Shell;
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32 import org.eclipse.swt.custom.ScrolledCompositeLayout;
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33
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34 /**
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35 * A ScrolledComposite provides scrollbars and will scroll its content when the user
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36 * uses the scrollbars.
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37 *
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38 *
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39 * <p>There are two ways to use the ScrolledComposite:
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40 *
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41 * <p>
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42 * 1) Set the size of the control that is being scrolled and the ScrolledComposite
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43 * will show scrollbars when the contained control can not be fully seen.
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44 *
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45 * 2) The second way imitates the way a browser would work. Set the minimum size of
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46 * the control and the ScrolledComposite will show scroll bars if the visible area is
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47 * less than the minimum size of the control and it will expand the size of the control
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48 * if the visible area is greater than the minimum size. This requires invoking
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49 * both setMinWidth(), setMinHeight() and setExpandHorizontal(), setExpandVertical().
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50 *
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51 * <code><pre>
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52 * public static void main (String [] args) {
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53 * Display display = new Display ();
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54 * Color red = display.getSystemColor(SWT.COLOR_RED);
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55 * Color blue = display.getSystemColor(SWT.COLOR_BLUE);
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56 * Shell shell = new Shell (display);
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57 * shell.setLayout(new FillLayout());
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58 *
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59 * // set the size of the scrolled content - method 1
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60 * final ScrolledComposite sc1 = new ScrolledComposite(shell, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
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61 * final Composite c1 = new Composite(sc1, SWT.NONE);
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62 * sc1.setContent(c1);
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63 * c1.setBackground(red);
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64 * GridLayout layout = new GridLayout();
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65 * layout.numColumns = 4;
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66 * c1.setLayout(layout);
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67 * Button b1 = new Button (c1, SWT.PUSH);
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68 * b1.setText("first button");
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69 * c1.setSize(c1.computeSize(SWT.DEFAULT, SWT.DEFAULT));
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70 *
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71 * // set the minimum width and height of the scrolled content - method 2
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72 * final ScrolledComposite sc2 = new ScrolledComposite(shell, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
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73 * sc2.setExpandHorizontal(true);
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74 * sc2.setExpandVertical(true);
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75 * final Composite c2 = new Composite(sc2, SWT.NONE);
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76 * sc2.setContent(c2);
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77 * c2.setBackground(blue);
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78 * layout = new GridLayout();
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79 * layout.numColumns = 4;
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80 * c2.setLayout(layout);
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81 * Button b2 = new Button (c2, SWT.PUSH);
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82 * b2.setText("first button");
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83 * sc2.setMinSize(c2.computeSize(SWT.DEFAULT, SWT.DEFAULT));
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84 *
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85 * Button add = new Button (shell, SWT.PUSH);
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86 * add.setText("add children");
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87 * final int[] index = new int[]{0};
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88 * add.addListener(SWT.Selection, new Listener() {
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89 * public void handleEvent(Event e) {
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90 * index[0]++;
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91 * Button button = new Button(c1, SWT.PUSH);
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92 * button.setText("button "+index[0]);
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93 * // reset size of content so children can be seen - method 1
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94 * c1.setSize(c1.computeSize(SWT.DEFAULT, SWT.DEFAULT));
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95 * c1.layout();
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96 *
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97 * button = new Button(c2, SWT.PUSH);
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98 * button.setText("button "+index[0]);
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99 * // reset the minimum width and height so children can be seen - method 2
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100 * sc2.setMinSize(c2.computeSize(SWT.DEFAULT, SWT.DEFAULT));
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101 * c2.layout();
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102 * }
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103 * });
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104 *
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105 * shell.open ();
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106 * while (!shell.isDisposed ()) {
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107 * if (!display.readAndDispatch ()) display.sleep ();
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108 * }
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109 * display.dispose ();
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110 * }
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111 * </pre></code>
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112 *
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113 * <dl>
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114 * <dt><b>Styles:</b><dd>H_SCROLL, V_SCROLL
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115 * </dl>
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116 *
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117 * @see <a href="http://www.eclipse.org/swt/snippets/#scrolledcomposite">ScrolledComposite snippets</a>
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118 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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119 */
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120 public class ScrolledComposite : Composite {
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121
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122 Control content;
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123 Listener contentListener;
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124 Listener filter;
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125
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126 int minHeight = 0;
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127 int minWidth = 0;
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128 bool expandHorizontal = false;
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129 bool expandVertical = false;
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130 bool alwaysShowScroll = false;
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131 bool showFocusedControl = false;
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132
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133 /**
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134 * Constructs a new instance of this class given its parent
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135 * and a style value describing its behavior and appearance.
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136 * <p>
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137 * The style value is either one of the style constants defined in
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138 * class <code>SWT</code> which is applicable to instances of this
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139 * class, or must be built by <em>bitwise OR</em>'ing together
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140 * (that is, using the <code>int</code> "|" operator) two or more
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141 * of those <code>SWT</code> style constants. The class description
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142 * lists the style constants that are applicable to the class.
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143 * Style bits are also inherited from superclasses.
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144 * </p>
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145 *
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146 * @param parent a widget which will be the parent of the new instance (cannot be null)
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147 * @param style the style of widget to construct
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148 *
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149 * @exception IllegalArgumentException <ul>
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150 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
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151 * </ul>
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152 * @exception SWTException <ul>
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153 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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154 * </ul>
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155 *
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156 * @see SWT#H_SCROLL
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157 * @see SWT#V_SCROLL
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158 * @see #getStyle()
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159 */
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160 public this(Composite parent, int style) {
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161 super(parent, checkStyle(style));
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162 super.setLayout(new ScrolledCompositeLayout());
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163 ScrollBar hBar = getHorizontalBar ();
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diff changeset
164 if (hBar !is null) {
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165 hBar.setVisible(false);
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166 hBar.addListener (SWT.Selection, new class() Listener {
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167 public void handleEvent (Event e) {
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168 hScroll();
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169 }
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170 });
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171 }
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172
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diff changeset
173 ScrollBar vBar = getVerticalBar ();
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174 if (vBar !is null) {
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175 vBar.setVisible(false);
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176 vBar.addListener (SWT.Selection, new class() Listener {
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177 public void handleEvent (Event e) {
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178 vScroll();
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179 }
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180 });
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181 }
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182
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183 contentListener = new class() Listener {
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184 public void handleEvent(Event e) {
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185 if (e.type !is SWT.Resize) return;
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186 layout(false);
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187 }
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188 };
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189
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190 filter = new class() Listener {
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191 public void handleEvent(Event event) {
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192 if (auto control = cast(Control)event.widget ) {
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193 if (contains(control)) showControl(control);
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194 }
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195 }
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196 };
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197
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198 addDisposeListener(new class() DisposeListener {
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199 public void widgetDisposed(DisposeEvent e) {
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200 getDisplay().removeFilter(SWT.FocusIn, filter);
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201 }
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202 });
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203 }
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204
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205 static int checkStyle (int style) {
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206 int mask = SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER | SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT;
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207 return style & mask;
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208 }
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209
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210 bool contains(Control control) {
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211 if (control is null || control.isDisposed()) return false;
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212
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213 Composite parent = control.getParent();
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214 while (parent !is null && !( null !is cast(Shell)parent )) {
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215 if (this is parent) return true;
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216 parent = parent.getParent();
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217 }
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218 return false;
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219 }
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220
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221 /**
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222 * Returns the Always Show Scrollbars flag. True if the scrollbars are
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223 * always shown even if they are not required. False if the scrollbars are only
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224 * visible when some part of the composite needs to be scrolled to be seen.
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225 * The H_SCROLL and V_SCROLL style bits are also required to enable scrollbars in the
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226 * horizontal and vertical directions.
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227 *
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228 * @return the Always Show Scrollbars flag value
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229 */
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diff changeset
230 public bool getAlwaysShowScrollBars() {
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231 //checkWidget();
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232 return alwaysShowScroll;
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233 }
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234
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diff changeset
235 /**
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236 * Returns <code>true</code> if the content control
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237 * will be expanded to fill available horizontal space.
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238 *
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diff changeset
239 * @return the receiver's horizontal expansion state
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diff changeset
240 *
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diff changeset
241 * @exception SWTException <ul>
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diff changeset
242 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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243 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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diff changeset
244 * </ul>
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diff changeset
245 *
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diff changeset
246 * @since 3.2
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247 */
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diff changeset
248 public bool getExpandHorizontal() {
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diff changeset
249 checkWidget();
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diff changeset
250 return expandHorizontal;
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251 }
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diff changeset
252
6dd524f61e62 add dwt win and basic java stuff
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parents:
diff changeset
253 /**
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parents:
diff changeset
254 * Returns <code>true</code> if the content control
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diff changeset
255 * will be expanded to fill available vertical space.
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diff changeset
256 *
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diff changeset
257 * @return the receiver's vertical expansion state
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parents:
diff changeset
258 *
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parents:
diff changeset
259 * @exception SWTException <ul>
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260 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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diff changeset
261 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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parents:
diff changeset
262 * </ul>
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parents:
diff changeset
263 *
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parents:
diff changeset
264 * @since 3.2
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diff changeset
265 */
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parents:
diff changeset
266 public bool getExpandVertical() {
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parents:
diff changeset
267 checkWidget();
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268 return expandVertical;
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parents:
diff changeset
269 }
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parents:
diff changeset
270
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parents:
diff changeset
271 /**
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parents:
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272 * Returns the minimum width of the content control.
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parents:
diff changeset
273 *
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parents:
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274 * @return the minimum width
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parents:
diff changeset
275 *
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diff changeset
276 * @exception SWTException <ul>
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diff changeset
277 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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278 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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parents:
diff changeset
279 * </ul>
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parents:
diff changeset
280 *
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diff changeset
281 * @since 3.2
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282 */
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diff changeset
283 public int getMinWidth() {
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diff changeset
284 checkWidget();
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285 return minWidth;
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286 }
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287
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diff changeset
288 /**
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289 * Returns the minimum height of the content control.
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290 *
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291 * @return the minimum height
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parents:
diff changeset
292 *
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diff changeset
293 * @exception SWTException <ul>
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parents:
diff changeset
294 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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diff changeset
295 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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parents:
diff changeset
296 * </ul>
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parents:
diff changeset
297 *
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diff changeset
298 * @since 3.2
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diff changeset
299 */
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parents:
diff changeset
300 public int getMinHeight() {
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parents:
diff changeset
301 checkWidget();
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diff changeset
302 return minHeight;
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parents:
diff changeset
303 }
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304
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parents:
diff changeset
305 /**
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306 * Get the content that is being scrolled.
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parents:
diff changeset
307 *
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diff changeset
308 * @return the control displayed in the content area
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diff changeset
309 */
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parents:
diff changeset
310 public Control getContent() {
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parents:
diff changeset
311 //checkWidget();
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diff changeset
312 return content;
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313 }
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parents:
diff changeset
314
6dd524f61e62 add dwt win and basic java stuff
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parents:
diff changeset
315 /**
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parents:
diff changeset
316 * Returns <code>true</code> if the receiver automatically scrolls to a focused child control
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diff changeset
317 * to make it visible. Otherwise, returns <code>false</code>.
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diff changeset
318 *
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parents:
diff changeset
319 * @return a bool indicating whether focused child controls are automatically scrolled into the viewport
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diff changeset
320 *
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parents:
diff changeset
321 * @exception SWTException <ul>
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parents:
diff changeset
322 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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diff changeset
323 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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parents:
diff changeset
324 * </ul>
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
325 *
6dd524f61e62 add dwt win and basic java stuff
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parents:
diff changeset
326 * @since 3.4
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diff changeset
327 */
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parents:
diff changeset
328 public bool getShowFocusedControl() {
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parents:
diff changeset
329 checkWidget();
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diff changeset
330 return showFocusedControl;
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331 }
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diff changeset
332
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parents:
diff changeset
333 void hScroll() {
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diff changeset
334 if (content is null) return;
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diff changeset
335 Point location = content.getLocation ();
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diff changeset
336 ScrollBar hBar = getHorizontalBar ();
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parents:
diff changeset
337 int hSelection = hBar.getSelection ();
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parents:
diff changeset
338 content.setLocation (-hSelection, location.y);
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diff changeset
339 }
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parents:
diff changeset
340 bool needHScroll(Rectangle contentRect, bool vVisible) {
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diff changeset
341 ScrollBar hBar = getHorizontalBar();
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parents:
diff changeset
342 if (hBar is null) return false;
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parents:
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343
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diff changeset
344 Rectangle hostRect = getBounds();
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345 int border = getBorderWidth();
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346 hostRect.width -= 2*border;
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347 ScrollBar vBar = getVerticalBar();
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348 if (vVisible && vBar !is null) hostRect.width -= vBar.getSize().x;
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349
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350 if (!expandHorizontal && contentRect.width > hostRect.width) return true;
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351 if (expandHorizontal && minWidth > hostRect.width) return true;
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352 return false;
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353 }
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354
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diff changeset
355 bool needVScroll(Rectangle contentRect, bool hVisible) {
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356 ScrollBar vBar = getVerticalBar();
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357 if (vBar is null) return false;
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358
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359 Rectangle hostRect = getBounds();
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360 int border = getBorderWidth();
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parents:
diff changeset
361 hostRect.height -= 2*border;
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parents:
diff changeset
362 ScrollBar hBar = getHorizontalBar();
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parents:
diff changeset
363 if (hVisible && hBar !is null) hostRect.height -= hBar.getSize().y;
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diff changeset
364
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parents:
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365 if (!expandVertical && contentRect.height > hostRect.height) return true;
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366 if (expandVertical && minHeight > hostRect.height) return true;
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parents:
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367 return false;
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parents:
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368 }
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parents:
diff changeset
369
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
370 /**
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parents:
diff changeset
371 * Return the point in the content that currently appears in the top left
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parents:
diff changeset
372 * corner of the scrolled composite.
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diff changeset
373 *
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parents:
diff changeset
374 * @return the point in the content that currently appears in the top left
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parents:
diff changeset
375 * corner of the scrolled composite. If no content has been set, this returns
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
376 * (0, 0).
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
377 *
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
378 * @exception SWTException <ul>
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parents:
diff changeset
379 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
diff changeset
380 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
381 * </ul>
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
382 *
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
383 * @since 2.0
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
384 */
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
385 public Point getOrigin() {
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parents:
diff changeset
386 checkWidget();
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
387 if (content is null) return new Point(0, 0);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
388 Point location = content.getLocation();
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
389 return new Point(-location.x, -location.y);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
390 }
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
391 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
392 * Scrolls the content so that the specified point in the content is in the top
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
393 * left corner. If no content has been set, nothing will occur.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
394 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
395 * Negative values will be ignored. Values greater than the maximum scroll
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
396 * distance will result in scrolling to the end of the scrollbar.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
397 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
398 * @param origin the point on the content to appear in the top left corner
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
399 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
400 * @exception SWTException <ul>
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
401 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
402 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
403 * <li>ERROR_INVALID_ARGUMENT - value of origin is outside of content
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
404 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
405 * @since 2.0
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
406 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
407 public void setOrigin(Point origin) {
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
408 setOrigin(origin.x, origin.y);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
409 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
410 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
411 * Scrolls the content so that the specified point in the content is in the top
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
412 * left corner. If no content has been set, nothing will occur.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
413 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
414 * Negative values will be ignored. Values greater than the maximum scroll
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
415 * distance will result in scrolling to the end of the scrollbar.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
416 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
417 * @param x the x coordinate of the content to appear in the top left corner
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
418 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
419 * @param y the y coordinate of the content to appear in the top left corner
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
420 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
421 * @exception SWTException <ul>
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
422 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
423 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
424 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
425 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
426 * @since 2.0
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
427 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
428 public void setOrigin(int x, int y) {
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
429 checkWidget();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
430 if (content is null) return;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
431 ScrollBar hBar = getHorizontalBar ();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
432 if (hBar !is null) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
433 hBar.setSelection(x);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
434 x = -hBar.getSelection ();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
435 } else {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
436 x = 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
437 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
438 ScrollBar vBar = getVerticalBar ();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
439 if (vBar !is null) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
440 vBar.setSelection(y);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
441 y = -vBar.getSelection ();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
442 } else {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
443 y = 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
444 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
445 content.setLocation(x, y);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
446 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
447 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
448 * Set the Always Show Scrollbars flag. True if the scrollbars are
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
449 * always shown even if they are not required. False if the scrollbars are only
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
450 * visible when some part of the composite needs to be scrolled to be seen.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
451 * The H_SCROLL and V_SCROLL style bits are also required to enable scrollbars in the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
452 * horizontal and vertical directions.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
453 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
454 * @param show true to show the scrollbars even when not required, false to show scrollbars only when required
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
455 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
456 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
457 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
458 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
459 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
460 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
461 public void setAlwaysShowScrollBars(bool show) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
462 checkWidget();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
463 if (show is alwaysShowScroll) return;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
464 alwaysShowScroll = show;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
465 ScrollBar hBar = getHorizontalBar ();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
466 if (hBar !is null && alwaysShowScroll) hBar.setVisible(true);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
467 ScrollBar vBar = getVerticalBar ();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
468 if (vBar !is null && alwaysShowScroll) vBar.setVisible(true);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
469 layout(false);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
470 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
471
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
472 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
473 * Set the content that will be scrolled.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
474 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
475 * @param content the control to be displayed in the content area
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
476 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
477 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
478 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
479 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
480 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
481 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
482 public void setContent(Control content) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
483 checkWidget();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
484 if (this.content !is null && !this.content.isDisposed()) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
485 this.content.removeListener(SWT.Resize, contentListener);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
486 this.content.setBounds(new Rectangle(-200, -200, 0, 0));
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
487 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
488
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
489 this.content = content;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
490 ScrollBar vBar = getVerticalBar ();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
491 ScrollBar hBar = getHorizontalBar ();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
492 if (this.content !is null) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
493 if (vBar !is null) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
494 vBar.setMaximum (0);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
495 vBar.setThumb (0);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
496 vBar.setSelection(0);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
497 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
498 if (hBar !is null) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
499 hBar.setMaximum (0);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
500 hBar.setThumb (0);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
501 hBar.setSelection(0);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
502 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
503 content.setLocation(0, 0);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
504 layout(false);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
505 this.content.addListener(SWT.Resize, contentListener);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
506 } else {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
507 if (hBar !is null) hBar.setVisible(alwaysShowScroll);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
508 if (vBar !is null) vBar.setVisible(alwaysShowScroll);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
509 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
510 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
511 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
512 * Configure the ScrolledComposite to resize the content object to be as wide as the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
513 * ScrolledComposite when the width of the ScrolledComposite is greater than the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
514 * minimum width specified in setMinWidth. If the ScrolledComposite is less than the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
515 * minimum width, the content will not be resized and instead the horizontal scroll bar will be
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
516 * used to view the entire width.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
517 * If expand is false, this behaviour is turned off. By default, this behaviour is turned off.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
518 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
519 * @param expand true to expand the content control to fill available horizontal space
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
520 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
521 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
522 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
523 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
524 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
525 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
526 public void setExpandHorizontal(bool expand) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
527 checkWidget();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
528 if (expand is expandHorizontal) return;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
529 expandHorizontal = expand;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
530 layout(false);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
531 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
532 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
533 * Configure the ScrolledComposite to resize the content object to be as tall as the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
534 * ScrolledComposite when the height of the ScrolledComposite is greater than the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
535 * minimum height specified in setMinHeight. If the ScrolledComposite is less than the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
536 * minimum height, the content will not be resized and instead the vertical scroll bar will be
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
537 * used to view the entire height.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
538 * If expand is false, this behaviour is turned off. By default, this behaviour is turned off.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
539 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
540 * @param expand true to expand the content control to fill available vertical space
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
541 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
542 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
543 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
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>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
545 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
546 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
547 public void setExpandVertical(bool expand) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
548 checkWidget();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
549 if (expand is expandVertical) return;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
550 expandVertical = expand;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
551 layout(false);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
552 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
553 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
554 * Sets the layout which is associated with the receiver to be
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
555 * the argument which may be null.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
556 * <p>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
557 * Note: No Layout can be set on this Control because it already
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
558 * manages the size and position of its children.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
559 * </p>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
560 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
561 * @param layout the receiver's new layout or null
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
562 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
563 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
564 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
565 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
566 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
567 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
568 public override void setLayout (Layout layout) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
569 checkWidget();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
570 return;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
571 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
572 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
573 * Specify the minimum height at which the ScrolledComposite will begin scrolling the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
574 * content with the vertical scroll bar. This value is only relevant if
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
575 * setExpandVertical(true) has been set.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
576 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
577 * @param height the minimum height or 0 for default height
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
578 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
579 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
580 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
581 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
582 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
583 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
584 public void setMinHeight(int height) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
585 setMinSize(minWidth, height);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
586 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
587 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
588 * Specify the minimum width and height at which the ScrolledComposite will begin scrolling the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
589 * content with the horizontal scroll bar. This value is only relevant if
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
590 * setExpandHorizontal(true) and setExpandVertical(true) have been set.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
591 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
592 * @param size the minimum size or null for the default size
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
593 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
594 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
595 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
596 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
597 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
598 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
599 public void setMinSize(Point size) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
600 if (size is null) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
601 setMinSize(0, 0);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
602 } else {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
603 setMinSize(size.x, size.y);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
604 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
605 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
606 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
607 * Specify the minimum width and height at which the ScrolledComposite will begin scrolling the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
608 * content with the horizontal scroll bar. This value is only relevant if
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
609 * setExpandHorizontal(true) and setExpandVertical(true) have been set.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
610 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
611 * @param width the minimum width or 0 for default width
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
612 * @param height the minimum height or 0 for default height
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
613 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
614 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
615 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
616 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
617 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
618 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
619 public void setMinSize(int width, int height) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
620 checkWidget();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
621 if (width is minWidth && height is minHeight) return;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
622 minWidth = Math.max(0, width);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
623 minHeight = Math.max(0, height);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
624 layout(false);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
625 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
626 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
627 * Specify the minimum width at which the ScrolledComposite will begin scrolling the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
628 * content with the horizontal scroll bar. This value is only relevant if
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
629 * setExpandHorizontal(true) has been set.
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
630 *
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
631 * @param width the minimum width or 0 for default width
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
632 *
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
633 * @exception SWTException <ul>
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parents:
diff changeset
634 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
635 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
636 * </ul>
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
637 */
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
638 public void setMinWidth(int width) {
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
639 setMinSize(width, minHeight);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
640 }
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
641
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
642 /**
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
643 * Configure the receiver to automatically scroll to a focused child control
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
644 * to make it visible.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
645 *
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
646 * If show is <code>false</code>, show a focused control is off.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
647 * By default, show a focused control is off.
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
648 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
649 * @param show <code>true</code> to show a focused control.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
650 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
651 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
652 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
653 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
654 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
655 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
656 * @since 3.4
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
657 */
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
658 public void setShowFocusedControl(bool show) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
659 checkWidget();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
660 if (showFocusedControl is show) return;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
661 Display display = getDisplay();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
662 display.removeFilter(SWT.FocusIn, filter);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
663 showFocusedControl = show;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
664 if (!showFocusedControl) return;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
665 display.addFilter(SWT.FocusIn, filter);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
666 Control control = display.getFocusControl();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
667 if (contains(control)) showControl(control);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
668 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
669
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
670 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
671 * Scrolls the content of the receiver so that the control is visible.
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
672 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
673 * @param control the control to be shown
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
674 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
675 * @exception IllegalArgumentException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
676 * <li>ERROR_NULL_ARGUMENT - if the control is null</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
677 * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
678 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
679 * @exception SWTException <ul>
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
680 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
681 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
682 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
683 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
684 * @since 3.4
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
685 */
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
686 public void showControl(Control control) {
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
687 checkWidget ();
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
688 if (control is null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
689 if (control.isDisposed ()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
690 if (!contains(control)) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
691
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parents:
diff changeset
692 Rectangle itemRect = getDisplay().map(control.getParent(), this, control.getBounds());
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
693 Rectangle area = getClientArea();
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
694 Point origin = getOrigin();
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
695 if (itemRect.x < 0) origin.x = Math.max(0, origin.x + itemRect.x);
6dd524f61e62 add dwt win and basic java stuff
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parents:
diff changeset
696 if (itemRect.y < 0) origin.y = Math.max(0, origin.y + itemRect.y);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
697 if (area.width < itemRect.x + itemRect.width) origin.x = Math.max(0, origin.x + itemRect.x + itemRect.width - area.width);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
698 if (area.height < itemRect.y + itemRect.height) origin.y = Math.max(0, origin.y + itemRect.y + itemRect.height - area.height);
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parents:
diff changeset
699 setOrigin(origin);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
700 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
701
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
702 void vScroll() {
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
703 if (content is null) return;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
704 Point location = content.getLocation ();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
705 ScrollBar vBar = getVerticalBar ();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
706 int vSelection = vBar.getSelection ();
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
707 content.setLocation (location.x, -vSelection);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
708 }
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
709 }