annotate org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/dnd/DropTarget.d @ 36:d46287db17ed

rakefile reorg, swt win phobosification
author Frank Benoit <benoit@tionex.de>
date Tue, 24 Mar 2009 08:48:41 +0100
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children b98647bc0aef
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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.dnd.DropTarget;
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14
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15 import org.eclipse.swt.SWT;
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16 import org.eclipse.swt.SWTError;
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17 import org.eclipse.swt.SWTException;
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18 import org.eclipse.swt.internal.C;
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19 import org.eclipse.swt.internal.ole.win32.COM;
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20 import org.eclipse.swt.internal.ole.win32.extras;
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21 import org.eclipse.swt.internal.ole.win32.OBJIDL;
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22 import org.eclipse.swt.internal.ole.win32.OLEIDL;
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23 import org.eclipse.swt.internal.ole.win32.ifs;
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24 import org.eclipse.swt.internal.win32.OS;
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25 import org.eclipse.swt.widgets.Control;
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26 import org.eclipse.swt.widgets.Event;
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27 import org.eclipse.swt.widgets.Listener;
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28 import org.eclipse.swt.widgets.Table;
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29 import org.eclipse.swt.widgets.Tree;
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30 import org.eclipse.swt.widgets.Widget;
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31
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32 import org.eclipse.swt.dnd.Transfer;
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33 import org.eclipse.swt.dnd.DropTargetEffect;
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34 import org.eclipse.swt.dnd.TransferData;
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35 import org.eclipse.swt.dnd.DropTargetListener;
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36 import org.eclipse.swt.dnd.DNDListener;
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37 import org.eclipse.swt.dnd.DNDEvent;
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38 import org.eclipse.swt.dnd.DND;
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39 import org.eclipse.swt.dnd.TableDropTargetEffect;
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40 import org.eclipse.swt.dnd.TreeDropTargetEffect;
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41
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42 import java.lang.all;
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43
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44 /**
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45 *
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46 * Class <code>DropTarget</code> defines the target object for a drag and drop transfer.
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47 *
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48 * IMPORTANT: This class is <em>not</em> intended to be subclassed.
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49 *
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50 * <p>This class identifies the <code>Control</code> over which the user must position the cursor
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51 * in order to drop the data being transferred. It also specifies what data types can be dropped on
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52 * this control and what operations can be performed. You may have several DropTragets in an
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53 * application but there can only be a one to one mapping between a <code>Control</code> and a <code>DropTarget</code>.
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54 * The DropTarget can receive data from within the same application or from other applications
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55 * (such as text dragged from a text editor like Word).</p>
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56 *
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57 * <code><pre>
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58 * int operations = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK;
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59 * Transfer[] types = new Transfer[] {TextTransfer.getInstance()};
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60 * DropTarget target = new DropTarget(label, operations);
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61 * target.setTransfer(types);
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62 * </code></pre>
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63 *
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64 * <p>The application is notified of data being dragged over this control and of when a drop occurs by
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65 * implementing the interface <code>DropTargetListener</code> which uses the class
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66 * <code>DropTargetEvent</code>. The application can modify the type of drag being performed
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67 * on this Control at any stage of the drag by modifying the <code>event.detail</code> field or the
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68 * <code>event.currentDataType</code> field. When the data is dropped, it is the responsibility of
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69 * the application to copy this data for its own purposes.
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70 *
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71 * <code><pre>
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72 * target.addDropListener (new DropTargetListener() {
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73 * public void dragEnter(DropTargetEvent event) {};
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74 * public void dragOver(DropTargetEvent event) {};
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75 * public void dragLeave(DropTargetEvent event) {};
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76 * public void dragOperationChanged(DropTargetEvent event) {};
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77 * public void dropAccept(DropTargetEvent event) {}
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78 * public void drop(DropTargetEvent event) {
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79 * // A drop has occurred, copy over the data
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80 * if (event.data is null) { // no data to copy, indicate failure in event.detail
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81 * event.detail = DND.DROP_NONE;
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82 * return;
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83 * }
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84 * label.setText ((String) event.data); // data copied to label text
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85 * }
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86 * });
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87 * </pre></code>
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88 *
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89 * <dl>
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90 * <dt><b>Styles</b></dt> <dd>DND.DROP_NONE, DND.DROP_COPY, DND.DROP_MOVE, DND.DROP_LINK</dd>
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91 * <dt><b>Events</b></dt> <dd>DND.DragEnter, DND.DragLeave, DND.DragOver, DND.DragOperationChanged,
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92 * DND.DropAccept, DND.Drop </dd>
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93 * </dl>
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94 *
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95 * @see <a href="http://www.eclipse.org/swt/snippets/#dnd">Drag and Drop snippets</a>
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96 * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: DNDExample</a>
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97 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
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98 */
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99 public class DropTarget : Widget {
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100
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101 Control control;
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102 Listener controlListener;
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103 Transfer[] transferAgents;
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104 DropTargetEffect dropEffect;
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105
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106 // Track application selections
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107 TransferData selectedDataType;
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108 int selectedOperation;
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109
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110 // workaround - There is no event for "operation changed" so track operation based on key state
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111 int keyOperation = -1;
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112
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113 // workaround - The dataobject address is only passed as an argument in drag enter and drop.
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114 // To allow applications to query the data values during the drag over operations,
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115 // maintain a reference to it.
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116 IDataObject iDataObject;
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117
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118 // interfaces
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119 _IDropTargetImpl iDropTarget;
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120 int refCount;
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121
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122 static const String DEFAULT_DROP_TARGET_EFFECT = "DEFAULT_DROP_TARGET_EFFECT"; //$NON-NLS-1$
0
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123
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124 /**
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125 * Creates a new <code>DropTarget</code> to allow data to be dropped on the specified
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126 * <code>Control</code>.
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127 * Creating an instance of a DropTarget may cause system resources to be allocated
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128 * depending on the platform. It is therefore mandatory that the DropTarget instance
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129 * be disposed when no longer required.
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130 *
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131 * @param control the <code>Control</code> over which the user positions the cursor to drop the data
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132 * @param style the bitwise OR'ing of allowed operations; this may be a combination of any of
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133 * DND.DROP_NONE, DND.DROP_COPY, DND.DROP_MOVE, DND.DROP_LINK
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134 *
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135 * @exception SWTException <ul>
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136 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
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137 * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
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138 * </ul>
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139 * @exception SWTError <ul>
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140 * <li>ERROR_CANNOT_INIT_DROP - unable to initiate drop target; this will occur if more than one
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141 * drop target is created for a control or if the operating system will not allow the creation
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142 * of the drop target</li>
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143 * </ul>
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144 *
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145 * <p>NOTE: ERROR_CANNOT_INIT_DROP should be an SWTException, since it is a
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146 * recoverable error, but can not be changed due to backward compatibility.</p>
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147 *
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148 * @see Widget#dispose
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149 * @see DropTarget#checkSubclass
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150 * @see DND#DROP_NONE
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parents:
diff changeset
151 * @see DND#DROP_COPY
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parents:
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152 * @see DND#DROP_MOVE
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parents:
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153 * @see DND#DROP_LINK
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parents:
diff changeset
154 */
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parents:
diff changeset
155 public this(Control control, int style) {
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parents:
diff changeset
156 super (control, checkStyle(style));
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diff changeset
157 this.control = control;
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diff changeset
158 if (control.getData(DND.DROP_TARGET_KEY) !is null) {
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diff changeset
159 DND.error(DND.ERROR_CANNOT_INIT_DROP);
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parents:
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160 }
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parents:
diff changeset
161 control.setData(DND.DROP_TARGET_KEY, this);
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parents:
diff changeset
162 createCOMInterfaces();
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diff changeset
163 this.AddRef();
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164
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diff changeset
165 if (COM.CoLockObjectExternal(iDropTarget, true, true) !is COM.S_OK)
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166 DND.error(DND.ERROR_CANNOT_INIT_DROP);
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parents:
diff changeset
167 if (COM.RegisterDragDrop( control.handle, iDropTarget) !is COM.S_OK)
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168 DND.error(DND.ERROR_CANNOT_INIT_DROP);
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169
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diff changeset
170 controlListener = new class() Listener {
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parents:
diff changeset
171 public void handleEvent (Event event) {
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parents:
diff changeset
172 if (!this.outer.isDisposed()){
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diff changeset
173 this.outer.dispose();
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174 }
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175 }
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176 };
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177 control.addListener (SWT.Dispose, controlListener);
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178
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179 this.addListener(SWT.Dispose, new class() Listener {
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180 public void handleEvent (Event event) {
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181 onDispose();
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182 }
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183 });
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184
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185 Object effect = control.getData(DEFAULT_DROP_TARGET_EFFECT);
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parents:
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186 if ( auto dte = cast(DropTargetEffect) effect ) {
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187 dropEffect = dte;
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parents:
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188 } else if ( auto table = cast(Table)control ) {
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189 dropEffect = new TableDropTargetEffect(table);
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parents:
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190 } else if ( auto tree = cast(Tree)control ) {
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191 dropEffect = new TreeDropTargetEffect(tree);
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192 }
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193 }
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194
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195 static int checkStyle (int style) {
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196 if (style is SWT.NONE) return DND.DROP_MOVE;
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197 return style;
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198 }
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199
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parents:
diff changeset
200 /**
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parents:
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201 * Adds the listener to the collection of listeners who will
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202 * be notified when a drag and drop operation is in progress, by sending
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203 * it one of the messages defined in the <code>DropTargetListener</code>
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parents:
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204 * interface.
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205 *
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parents:
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206 * <p><ul>
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207 * <li><code>dragEnter</code> is called when the cursor has entered the drop target boundaries
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208 * <li><code>dragLeave</code> is called when the cursor has left the drop target boundaries and just before
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parents:
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209 * the drop occurs or is cancelled.
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parents:
diff changeset
210 * <li><code>dragOperationChanged</code> is called when the operation being performed has changed
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parents:
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211 * (usually due to the user changing the selected modifier key(s) while dragging)
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parents:
diff changeset
212 * <li><code>dragOver</code> is called when the cursor is moving over the drop target
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213 * <li><code>dropAccept</code> is called just before the drop is performed. The drop target is given
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diff changeset
214 * the chance to change the nature of the drop or veto the drop by setting the <code>event.detail</code> field
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215 * <li><code>drop</code> is called when the data is being dropped
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parents:
diff changeset
216 * </ul></p>
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parents:
diff changeset
217 *
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parents:
diff changeset
218 * @param listener the listener which should be notified
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parents:
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219 *
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parents:
diff changeset
220 * @exception IllegalArgumentException <ul>
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parents:
diff changeset
221 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
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parents:
diff changeset
222 * </ul>
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parents:
diff changeset
223 * @exception SWTException <ul>
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parents:
diff changeset
224 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
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parents:
diff changeset
225 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
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parents:
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226 * </ul>
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parents:
diff changeset
227 *
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parents:
diff changeset
228 * @see DropTargetListener
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parents:
diff changeset
229 * @see #getDropListeners
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parents:
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230 * @see #removeDropListener
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parents:
diff changeset
231 * @see DropTargetEvent
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parents:
diff changeset
232 */
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parents:
diff changeset
233 public void addDropListener(DropTargetListener listener) {
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parents:
diff changeset
234 if (listener is null) DND.error (SWT.ERROR_NULL_ARGUMENT);
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parents:
diff changeset
235 DNDListener typedListener = new DNDListener (listener);
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parents:
diff changeset
236 typedListener.dndWidget = this;
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diff changeset
237 addListener (DND.DragEnter, typedListener);
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parents:
diff changeset
238 addListener (DND.DragLeave, typedListener);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
239 addListener (DND.DragOver, typedListener);
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parents:
diff changeset
240 addListener (DND.DragOperationChanged, typedListener);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
241 addListener (DND.Drop, typedListener);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
242 addListener (DND.DropAccept, typedListener);
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parents:
diff changeset
243 }
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parents:
diff changeset
244
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parents:
diff changeset
245 ULONG AddRef() {
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
246 refCount++;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
247 return refCount;
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248 }
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parents:
diff changeset
249
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parents:
diff changeset
250 protected void checkSubclass () {
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parents:
diff changeset
251 String name = this.classinfo.name;
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parents:
diff changeset
252 String validName = DropTarget.classinfo.name;
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parents:
diff changeset
253 if (validName!=/*eq*/name) {
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parents:
diff changeset
254 DND.error (SWT.ERROR_INVALID_SUBCLASS);
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parents:
diff changeset
255 }
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
256 }
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
257
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parents:
diff changeset
258 void createCOMInterfaces() {
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parents:
diff changeset
259 // register each of the interfaces that this object implements
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parents:
diff changeset
260 iDropTarget = new _IDropTargetImpl(this);
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parents:
diff changeset
261 }
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parents:
diff changeset
262
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parents:
diff changeset
263 void disposeCOMInterfaces() {
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parents:
diff changeset
264 iDropTarget = null;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
265 }
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parents:
diff changeset
266
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
267 int DragEnter_64(IDataObject pDataObject, DWORD grfKeyState, long pt, DWORD* pdwEffect) {
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parents:
diff changeset
268 POINTL point;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
269 OS.MoveMemory( &point, &pt, 8);
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parents:
diff changeset
270 return DragEnter(pDataObject, grfKeyState, point, pdwEffect);
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parents:
diff changeset
271 }
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parents:
diff changeset
272
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parents:
diff changeset
273 HRESULT DragEnter(IDataObject pDataObject, DWORD grfKeyState, POINTL pt, DWORD* pdwEffect) {
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parents:
diff changeset
274 selectedDataType = null;
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parents:
diff changeset
275 selectedOperation = DND.DROP_NONE;
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parents:
diff changeset
276 if (iDataObject !is null) iDataObject.Release();
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parents:
diff changeset
277 iDataObject = null;
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parents:
diff changeset
278
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parents:
diff changeset
279 DNDEvent event = new DNDEvent();
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parents:
diff changeset
280 if (!setEventData(event, pDataObject, grfKeyState, pt, pdwEffect)) {
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parents:
diff changeset
281 *pdwEffect = COM.DROPEFFECT_NONE;
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parents:
diff changeset
282 return COM.S_FALSE;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
283 }
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parents:
diff changeset
284
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parents:
diff changeset
285 // Remember the iDataObject because it is not passed into the DragOver callback
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
286 iDataObject = pDataObject;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
287 iDataObject.AddRef();
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
288
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
289 int allowedOperations = event.operations;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
290 TransferData[] allowedDataTypes = new TransferData[event.dataTypes.length];
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
291 System.arraycopy(event.dataTypes, 0, allowedDataTypes, 0, allowedDataTypes.length);
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parents:
diff changeset
292 notifyListeners(DND.DragEnter, event);
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
293 refresh();
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
294 if (event.detail is DND.DROP_DEFAULT) {
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
295 event.detail = (allowedOperations & DND.DROP_MOVE) !is 0 ? DND.DROP_MOVE : DND.DROP_NONE;
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parents:
diff changeset
296 }
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parents:
diff changeset
297
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parents:
diff changeset
298 selectedDataType = null;
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parents:
diff changeset
299 for (int i = 0; i < allowedDataTypes.length; i++) {
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
300 if (TransferData.sameType(allowedDataTypes[i], event.dataType)){
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
301 selectedDataType = allowedDataTypes[i];
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
302 break;
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Frank Benoit <benoit@tionex.de>
parents:
diff changeset
303 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
304 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
305
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
306 selectedOperation = DND.DROP_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
307 if (selectedDataType !is null && ((allowedOperations & event.detail) !is 0)) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
308 selectedOperation = event.detail;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
309 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
310
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
311 *pdwEffect = opToOs(selectedOperation);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
312 return COM.S_OK;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
313 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
314
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
315 HRESULT DragLeave() {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
316 keyOperation = -1;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
317
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
318 if (iDataObject is null) return COM.S_FALSE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
319
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
320 DNDEvent event = new DNDEvent();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
321 event.widget = this;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
322 event.time = OS.GetMessageTime();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
323 event.detail = DND.DROP_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
324 notifyListeners(DND.DragLeave, event);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
325 refresh();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
326
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
327 iDataObject.Release();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
328 iDataObject = null;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
329 return COM.S_OK;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
330 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
331
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
332 int DragOver_64(int grfKeyState, long pt, DWORD* pdwEffect) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
333 POINTL point;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
334 OS.MoveMemory(&point, &pt, 8);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
335 return DragOver(grfKeyState, point, pdwEffect);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
336 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
337
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
338 HRESULT DragOver(int grfKeyState, POINTL pt, DWORD* pdwEffect) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
339 if (iDataObject is null) return COM.S_FALSE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
340 int oldKeyOperation = keyOperation;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
341
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
342 DNDEvent event = new DNDEvent();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
343 if (!setEventData(event, iDataObject, grfKeyState, pt, pdwEffect)) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
344 keyOperation = -1;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
345 *pdwEffect = COM.DROPEFFECT_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
346 return COM.S_FALSE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
347 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
348
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
349 int allowedOperations = event.operations;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
350 TransferData[] allowedDataTypes = new TransferData[event.dataTypes.length];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
351 System.arraycopy(event.dataTypes, 0, allowedDataTypes, 0, allowedDataTypes.length);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
352
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
353 if (keyOperation is oldKeyOperation) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
354 event.type = DND.DragOver;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
355 event.dataType = selectedDataType;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
356 event.detail = selectedOperation;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
357 } else {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
358 event.type = DND.DragOperationChanged;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
359 event.dataType = selectedDataType;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
360 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
361 notifyListeners(event.type, event);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
362 refresh();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
363 if (event.detail is DND.DROP_DEFAULT) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
364 event.detail = (allowedOperations & DND.DROP_MOVE) !is 0 ? DND.DROP_MOVE : DND.DROP_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
365 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
366
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
367 selectedDataType = null;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
368 for (int i = 0; i < allowedDataTypes.length; i++) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
369 if (TransferData.sameType(allowedDataTypes[i], event.dataType)){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
370 selectedDataType = allowedDataTypes[i];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
371 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
372 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
373 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
374
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
375 selectedOperation = DND.DROP_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
376 if (selectedDataType !is null && ((allowedOperations & event.detail) is event.detail)) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
377 selectedOperation = event.detail;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
378 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
379
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
380 *pdwEffect = opToOs(selectedOperation);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
381 return COM.S_OK;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
382 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
383
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
384 int Drop_64(IDataObject pDataObject, int grfKeyState, long pt, DWORD* pdwEffect) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
385 POINTL point;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
386 OS.MoveMemory(&point, &pt, 8);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
387 return Drop(pDataObject, grfKeyState, point, pdwEffect);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
388 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
389
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
390 HRESULT Drop(IDataObject pDataObject, int grfKeyState, POINTL pt, DWORD* pdwEffect) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
391 DNDEvent event = new DNDEvent();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
392 event.widget = this;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
393 event.time = OS.GetMessageTime();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
394 if (dropEffect !is null) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
395 event.item = dropEffect.getItem(pt.x, pt.y);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
396 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
397 event.detail = DND.DROP_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
398 notifyListeners(DND.DragLeave, event);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
399 refresh();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
400
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
401 event = new DNDEvent();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
402 if (!setEventData(event, pDataObject, grfKeyState, pt, pdwEffect)) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
403 keyOperation = -1;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
404 *pdwEffect = COM.DROPEFFECT_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
405 return COM.S_FALSE;
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 keyOperation = -1;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
408 int allowedOperations = event.operations;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
409 TransferData[] allowedDataTypes = new TransferData[event.dataTypes.length];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
410 System.arraycopy(event.dataTypes, 0, allowedDataTypes, 0, allowedDataTypes.length);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
411 event.dataType = selectedDataType;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
412 event.detail = selectedOperation;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
413 notifyListeners(DND.DropAccept,event);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
414 refresh();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
415
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
416 selectedDataType = null;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
417 for (int i = 0; i < allowedDataTypes.length; i++) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
418 if (TransferData.sameType(allowedDataTypes[i], event.dataType)){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
419 selectedDataType = allowedDataTypes[i];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
420 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
421 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
422 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
423 selectedOperation = DND.DROP_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
424 if (selectedDataType !is null && (allowedOperations & event.detail) is event.detail) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
425 selectedOperation = event.detail;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
426 }
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 if (selectedOperation is DND.DROP_NONE){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
429 *pdwEffect = COM.DROPEFFECT_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
430 return COM.S_OK;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
431 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
432
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
433 // Get Data in a Java format
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
434 Object object = null;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
435 for (int i = 0; i < transferAgents.length; i++){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
436 Transfer transfer = transferAgents[i];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
437 if (transfer !is null && transfer.isSupportedType(selectedDataType)){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
438 object = transfer.nativeToJava(selectedDataType);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
439 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
440 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
441 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
442 if (object is null){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
443 selectedOperation = DND.DROP_NONE;
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
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
446 event.detail = selectedOperation;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
447 event.dataType = selectedDataType;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
448 event.data = object;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
449 OS.ImageList_DragShowNolock(false);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
450 try {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
451 notifyListeners(DND.Drop,event);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
452 } finally {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
453 OS.ImageList_DragShowNolock(true);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
454 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
455 refresh();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
456 selectedOperation = DND.DROP_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
457 if ((allowedOperations & event.detail) is event.detail) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
458 selectedOperation = event.detail;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
459 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
460 //notify source of action taken
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
461 *pdwEffect = opToOs(selectedOperation);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
462 return COM.S_OK;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
463 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
464
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
465 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
466 * Returns the Control which is registered for this DropTarget. This is the control over which the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
467 * user positions the cursor to drop the data.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
468 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
469 * @return the Control which is registered for this DropTarget
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 public Control getControl () {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
472 return control;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
473 }
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 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
476 * Returns an array of listeners who will be notified when a drag and drop
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
477 * operation is in progress, by sending it one of the messages defined in
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
478 * the <code>DropTargetListener</code> interface.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
479 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
480 * @return the listeners who will be notified when a drag and drop
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
481 * operation is in progress
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
482 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
483 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
484 * <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
485 * <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
486 * </ul>
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 * @see DropTargetListener
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
489 * @see #addDropListener
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
490 * @see #removeDropListener
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
491 * @see DropTargetEvent
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
492 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
493 * @since 3.4
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
494 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
495 public DropTargetListener[] getDropListeners() {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
496 Listener[] listeners = getListeners(DND.DragEnter);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
497 int length = listeners.length;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
498 DropTargetListener[] dropListeners = new DropTargetListener[length];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
499 int count = 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
500 for (int i = 0; i < length; i++) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
501 Listener listener = listeners[i];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
502 if (auto l = cast(DNDListener)listener ) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
503 dropListeners[count] = cast(DropTargetListener) (l.getEventListener());
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
504 count++;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
505 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
506 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
507 if (count is length) return dropListeners;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
508 DropTargetListener[] result = new DropTargetListener[count];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
509 SimpleType!(DropTargetListener).arraycopy(dropListeners, 0, result, 0, count);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
510 return result;
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
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
513 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
514 * Returns the drop effect for this DropTarget. This drop effect will be
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
515 * used during a drag and drop to display the drag under effect on the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
516 * target widget.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
517 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
518 * @return the drop effect that is registered for this DropTarget
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
519 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
520 * @since 3.3
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
521 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
522 public DropTargetEffect getDropTargetEffect() {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
523 return dropEffect;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
524 }
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 int getOperationFromKeyState(int grfKeyState) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
527 bool ctrl = (grfKeyState & OS.MK_CONTROL) !is 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
528 bool shift = (grfKeyState & OS.MK_SHIFT) !is 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
529 bool alt = (grfKeyState & OS.MK_ALT) !is 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
530 if (alt) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
531 if (ctrl || shift) return DND.DROP_DEFAULT;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
532 return DND.DROP_LINK;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
533 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
534 if (ctrl && shift) return DND.DROP_LINK;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
535 if (ctrl)return DND.DROP_COPY;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
536 if (shift)return DND.DROP_MOVE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
537 return DND.DROP_DEFAULT;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
538 }
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 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
541 * Returns a list of the data types that can be transferred to this DropTarget.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
542 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
543 * @return a list of the data types that can be transferred to this DropTarget
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
544 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
545 public Transfer[] getTransfer() {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
546 return transferAgents;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
547 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
548
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
549 void onDispose () {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
550 if (control is null) return;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
551
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
552 COM.RevokeDragDrop(control.handle);
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 if (controlListener !is null)
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
555 control.removeListener(SWT.Dispose, controlListener);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
556 controlListener = null;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
557 control.setData(DND.DROP_TARGET_KEY, null);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
558 transferAgents = null;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
559 control = null;
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 COM.CoLockObjectExternal(iDropTarget, false, true);
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 this.Release();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
564
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
565 COM.CoFreeUnusedLibraries();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
566 }
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 int opToOs(int operation) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
569 int osOperation = 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
570 if ((operation & DND.DROP_COPY) !is 0){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
571 osOperation |= COM.DROPEFFECT_COPY;
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 if ((operation & DND.DROP_LINK) !is 0) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
574 osOperation |= COM.DROPEFFECT_LINK;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
575 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
576 if ((operation & DND.DROP_MOVE) !is 0) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
577 osOperation |= COM.DROPEFFECT_MOVE;
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 return osOperation;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
580 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
581
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
582 int osToOp(int osOperation){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
583 int operation = 0;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
584 if ((osOperation & COM.DROPEFFECT_COPY) !is 0){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
585 operation |= DND.DROP_COPY;
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 if ((osOperation & COM.DROPEFFECT_LINK) !is 0) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
588 operation |= DND.DROP_LINK;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
589 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
590 if ((osOperation & COM.DROPEFFECT_MOVE) !is 0) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
591 operation |= DND.DROP_MOVE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
592 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
593 return operation;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
594 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
595
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
596 /* QueryInterface([in] iid, [out] ppvObject)
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
597 * Ownership of ppvObject transfers from callee to caller so reference count on ppvObject
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
598 * must be incremented before returning. Caller is responsible for releasing ppvObject.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
599 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
600 HRESULT QueryInterface(REFIID riid, void ** ppvObject) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
601
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
602 if (riid is null || ppvObject is null)
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
603 return COM.E_INVALIDARG;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
604 if (COM.IsEqualGUID(riid, &COM.IIDIUnknown) || COM.IsEqualGUID(riid, &COM.IIDIDropTarget)) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
605 *ppvObject = cast(void*)cast(IDropTarget) iDropTarget;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
606 AddRef();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
607 return COM.S_OK;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
608 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
609
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
610 *ppvObject = null;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
611 return COM.E_NOINTERFACE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
612 }
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 ULONG Release() {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
615 refCount--;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
616
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
617 if (refCount is 0) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
618 disposeCOMInterfaces();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
619 COM.CoFreeUnusedLibraries();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
620 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
621
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
622 return refCount;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
623 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
624
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
625 void refresh() {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
626 if (control is null || control.isDisposed()) return;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
627 auto handle = control.handle;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
628 RECT lpRect;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
629 if (OS.GetUpdateRect(handle, &lpRect, false)) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
630 OS.ImageList_DragShowNolock(false);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
631 OS.RedrawWindow(handle, &lpRect, null, OS.RDW_UPDATENOW | OS.RDW_INVALIDATE);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
632 OS.ImageList_DragShowNolock(true);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
633 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
634 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
635
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
636 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
637 * Removes the listener from the collection of listeners who will
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
638 * be notified when a drag and drop operation is in progress.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
639 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
640 * @param listener the listener which should no longer be notified
6dd524f61e62 add dwt win and basic java stuff
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 * @exception IllegalArgumentException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
643 * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
644 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
645 * @exception SWTException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
646 * <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
647 * <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
648 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
649 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
650 * @see DropTargetListener
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
651 * @see #addDropListener
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
652 * @see #getDropListeners
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
653 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
654 public void removeDropListener(DropTargetListener listener) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
655 if (listener is null) DND.error (SWT.ERROR_NULL_ARGUMENT);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
656 removeListener (DND.DragEnter, listener);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
657 removeListener (DND.DragLeave, listener);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
658 removeListener (DND.DragOver, listener);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
659 removeListener (DND.DragOperationChanged, listener);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
660 removeListener (DND.Drop, listener);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
661 removeListener (DND.DropAccept, listener);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
662 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
663
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
664 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
665 * Specifies the drop effect for this DropTarget. This drop effect will be
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
666 * used during a drag and drop to display the drag under effect on the
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
667 * target widget.
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 * @param effect the drop effect that is registered for this DropTarget
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 * @since 3.3
6dd524f61e62 add dwt win and basic java stuff
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 public void setDropTargetEffect(DropTargetEffect effect) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
674 dropEffect = effect;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
675 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
676
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
677 bool setEventData(DNDEvent event, IDataObject pDataObject, int grfKeyState, POINTL pt, DWORD* pdwEffect) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
678 if (pDataObject is null || pdwEffect is null) return false;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
679
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
680 // get allowed operations
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
681 int style = getStyle();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
682 int[1] operations;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
683 OS.MoveMemory(operations.ptr, pdwEffect, 4);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
684 operations[0] = osToOp(operations[0]) & style;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
685 if (operations[0] is DND.DROP_NONE) return false;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
686
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
687 // get current operation
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
688 int operation = getOperationFromKeyState(grfKeyState);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
689 keyOperation = operation;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
690 if (operation is DND.DROP_DEFAULT) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
691 if ((style & DND.DROP_DEFAULT) is 0) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
692 operation = (operations[0] & DND.DROP_MOVE) !is 0 ? DND.DROP_MOVE : DND.DROP_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
693 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
694 } else {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
695 if ((operation & operations[0]) is 0) operation = DND.DROP_NONE;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
696 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
697
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
698 // Get allowed transfer types
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
699 TransferData[] dataTypes = new TransferData[0];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
700 IDataObject dataObject = pDataObject;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
701 dataObject.AddRef();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
702 try {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
703 IEnumFORMATETC[1] address;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
704 if (dataObject.EnumFormatEtc(COM.DATADIR_GET, address.ptr) !is COM.S_OK) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
705 return false;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
706 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
707 IEnumFORMATETC enumFormatetc = address[0];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
708 try {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
709 // Loop over enumerator and save any types that match what we are looking for
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
710 auto rgelt = cast(FORMATETC*) OS.GlobalAlloc(OS.GMEM_FIXED | OS.GMEM_ZEROINIT, FORMATETC.sizeof);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
711 try {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
712 uint[1] pceltFetched;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
713 enumFormatetc.Reset();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
714 while (enumFormatetc.Next(1, rgelt, pceltFetched.ptr) is COM.S_OK && pceltFetched[0] is 1) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
715 TransferData transferData = new TransferData();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
716 transferData.formatetc = new FORMATETC();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
717 COM.MoveMemory(transferData.formatetc, rgelt, FORMATETC.sizeof);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
718 transferData.type = transferData.formatetc.cfFormat;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
719 transferData.pIDataObject = pDataObject;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
720 for (int i = 0; i < transferAgents.length; i++){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
721 Transfer transfer = transferAgents[i];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
722 if (transfer !is null && transfer.isSupportedType(transferData)){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
723 TransferData[] newDataTypes = new TransferData[dataTypes.length + 1];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
724 System.arraycopy(dataTypes, 0, newDataTypes, 0, dataTypes.length);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
725 newDataTypes[dataTypes.length] = transferData;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
726 dataTypes = newDataTypes;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
727 break;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
728 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
729 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
730 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
731 } finally {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
732 OS.GlobalFree(rgelt);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
733 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
734 } finally {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
735 enumFormatetc.Release();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
736 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
737 } finally {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
738 dataObject.Release();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
739 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
740 if (dataTypes.length is 0) return false;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
741
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
742 event.widget = this;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
743 event.x = pt.x;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
744 event.y = pt.y;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
745 event.time = OS.GetMessageTime();
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
746 event.feedback = DND.FEEDBACK_SELECT;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
747 event.dataTypes = dataTypes;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
748 event.dataType = dataTypes[0];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
749 if (dropEffect !is null) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
750 event.item = dropEffect.getItem(pt.x, pt.y);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
751 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
752 event.operations = operations[0];
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
753 event.detail = operation;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
754 return true;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
755 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
756
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
757 /**
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
758 * Specifies the data types that can be transferred to this DropTarget. If data is
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
759 * being dragged that does not match one of these types, the drop target will be notified of
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
760 * the drag and drop operation but the currentDataType will be null and the operation
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
761 * will be DND.NONE.
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
762 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
763 * @param transferAgents a list of Transfer objects which define the types of data that can be
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
764 * dropped on this target
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
765 *
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
766 * @exception IllegalArgumentException <ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
767 * <li>ERROR_NULL_ARGUMENT - if transferAgents is null</li>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
768 * </ul>
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
769 */
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
770 public void setTransfer(Transfer[] transferAgents){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
771 if (transferAgents is null) DND.error(SWT.ERROR_NULL_ARGUMENT);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
772 this.transferAgents = transferAgents;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
773 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
774 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
775
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
776 class _IDropTargetImpl : IDropTarget {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
777
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
778 DropTarget parent;
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
779 this(DropTarget p) { parent = p; }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
780 extern (Windows):
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
781 // interface of IUnknown
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
782 HRESULT QueryInterface(REFIID riid, void ** ppvObject) { return parent.QueryInterface(riid, ppvObject); }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
783 ULONG AddRef() { return parent.AddRef(); }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
784 ULONG Release() { return parent.Release(); }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
785
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
786 HRESULT DragEnter( IDataObject pDataObj, DWORD grfKeyState, POINTL pt, DWORD *pdwEffect ) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
787 return parent.DragEnter(pDataObj, grfKeyState, pt, pdwEffect);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
788 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
789 HRESULT DragOver( DWORD grfKeyState, POINTL pt, DWORD *pdwEffect ) {
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
790 return parent.DragOver(grfKeyState, pt, pdwEffect);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
791 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
792 HRESULT DragLeave(){ return parent.DragLeave(); }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
793 HRESULT Drop(IDataObject pDataObj,DWORD grfKeyState,POINTL pt,DWORD *pdwEffect){
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
794 return parent.Drop(pDataObj, grfKeyState, pt, pdwEffect);
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
795 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
796 }
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
797
6dd524f61e62 add dwt win and basic java stuff
Frank Benoit <benoit@tionex.de>
parents:
diff changeset
798