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-rwxr-xr-xbundles/org.eclipse.swt/Eclipse SWT Drag and Drop/win32/org/eclipse/swt/dnd/DragSource.java482
1 files changed, 0 insertions, 482 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/win32/org/eclipse/swt/dnd/DragSource.java b/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/win32/org/eclipse/swt/dnd/DragSource.java
deleted file mode 100755
index 65c21271bd..0000000000
--- a/bundles/org.eclipse.swt/Eclipse SWT Drag and Drop/win32/org/eclipse/swt/dnd/DragSource.java
+++ /dev/null
@@ -1,482 +0,0 @@
-package org.eclipse.swt.dnd;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved
- */
-import org.eclipse.swt.*;
-import org.eclipse.swt.ole.win32.*;
-import org.eclipse.swt.internal.ole.win32.*;
-import org.eclipse.swt.widgets.*;
-import org.eclipse.swt.internal.win32.*;
-
-/**
- *
- * Class <code>DragSource</code> defines the source object for a drag and drop transfer.
- *
- * IMPORTANT: This class is <em>not</em> intended to be subclassed.
- *
- * <p>This class defines the following items:<ul>
- * <li>the <code>Control</code> that the user clicks on to intiate a drag;
- * <li>the data that will be transferred on a successful drop;
- * <li>and the modes (move, copy, link) of transfer that are allowed.
- * </ul></p>
- *
- * <p>You may have several DragSources in an application but you can only have one DragSource
- * per Control. Data dragged from this DragSource can be dropped on a site within this application
- * but it can also be dropped on another application such as an external Text editor.</p>
- *
- * <p>The application supplies the content of the data being transferred by implementing the interface
- * <code>DragSourceListener</code> which uses the class <code>DragSourceEvent</code>.
- * The application is required to take the appropriate action to remove the data from the drag source
- * when a successful move operation occurs.</p>
- *
- * <code><pre>
- * // Enable a label as a Drag Source
- * Label label = new Label(shell, SWT.NONE);
- * // This example will allow text to be dragged
- * Transfer[] types = new Transfer[] {TextTransfer.getInstance()};
- * // This example will allow the text to be copied or moved to the drop target
- * int operations = DND.DROP_MOVE | DND.DROP_COPY;
- *
- * DragSource source = new DragSource (label, operations);
- * source.setTransfer(types);
- * source.addDragListener (new DragSourceListener() {
- * public void dragStart(DragSourceEvent e) {
- * // Only start the drag if there is actually text in the
- * // label - this text will be what is dropped on the target.
- * if (label.getText().length() == 0) {
- * event.doit = false;
- * }
- * };
- * public void dragSetData (DragSourceEvent event) {
- * // A drop has been performed, so provide the data of the
- * // requested type.
- * // (Checking the type of the requested data is only
- * // necessary if the drag source supports more than
- * // one data type but is shown here as an example).
- * if (TextTransfer.getInstance().isSupportedType(event.dataType)){
- * event.data = label.getText();
- * }
- * }
- * public void dragFinished(DragSourceEvent event) {
- * // A Move operation has been performed so remove the data
- * // from the source
- * if (event.detail == DND.DROP_MOVE)
- * label.setText("");
- * }
- * });
- * </pre></code>
- *
- *
- * <dl>
- * <dt><b>Styles</b> <dd>DND.DROP_NONE, DND.DROP_COPY, DND.DROP_MOVE, DND.DROP_LINK
- * <dt><b>Events</b> <dd>DND.DragEnd, DND.DragSetData
- * </dl>
- */
-
-public class DragSource extends Widget {
-
- // ole interfaces
- private COMObject iUnknown;
- private COMObject iDropSource;
- private COMObject iDataObject;
- private int refCount;
-
- // info for registering as a drag source
- private Control control;
- private Transfer[] transferAgents = new Transfer[0];
-
- private Listener controlListener;
-
- private int dataEffect;
-
-/**
- * Creates a new <code>DragSource</code> to handle dragging from the specified <code>Control</code>.
- *
- * @param control the <code>Control</code> that the user clicks on to initiate the drag
- *
- * @param style the bitwise OR'ing of allowed operations; this may be a combination of any of
- * DND.DROP_NONE, DND.DROP_COPY, DND.DROP_MOVE, DND.DROP_LINK
- *
- */
-public DragSource(Control control, int style) {
-
- super (control, checkStyle (style));
-
- this.control = control;
-
- createCOMInterfaces();
-
- this.AddRef();
-
- controlListener = new Listener () {
- public void handleEvent (Event event) {
- if (event.type == SWT.Dispose){
- DragSource.this.dispose();
- }
- if (event.type == SWT.DragDetect) {
- DragSource.this.drag();
- }
- }
- };
- control.addListener (SWT.Dispose, controlListener);
- control.addListener (SWT.DragDetect, controlListener);
-
- this.addListener(SWT.Dispose, new Listener() {
- public void handleEvent(Event e) {
- onDispose();
- }
- });
-}
-/**
- * Adds the listener to receive events.
- *
- * @param listener the listener
- *
- * @exception SWTError
- * <ul><li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
- * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
- * <li>ERROR_NULL_ARGUMENT when listener is null</li></ul>
- */
-public void addDragListener(DragSourceListener listener) {
- if (listener == null) DND.error (SWT.ERROR_NULL_ARGUMENT);
- DNDListener typedListener = new DNDListener (listener);
- addListener (DND.DragStart, typedListener);
- addListener (DND.DragEnd, typedListener);
- addListener (DND.DragSetData, typedListener);
-
-}
-private int AddRef() {
- refCount++;
- return refCount;
-}
-static int checkStyle (int style) {
- if (style == SWT.NONE) return DND.DROP_MOVE;
- return style;
-}
-private void createCOMInterfaces() {
- // register each of the interfaces that this object implements
- iUnknown = new COMObject(new int[]{2, 0, 0}){
- public int method0(int[] args) {return QueryInterface(args[0], args[1]);}
- public int method1(int[] args) {return AddRef();}
- public int method2(int[] args) {return Release();}
- };
-
- iDropSource = new COMObject(new int[]{2, 0, 0, 2, 1}){
- public int method0(int[] args) {return QueryInterface(args[0], args[1]);}
- public int method1(int[] args) {return AddRef();}
- public int method2(int[] args) {return Release();}
- public int method3(int[] args) {return QueryContinueDrag(args[0], args[1]);}
- public int method4(int[] args) {return GiveFeedback(args[0]);}
- };
-
- iDataObject = new COMObject(new int[]{2, 0, 0, 2, 2, 1, 2, 3, 2, 4, 1, 1}){
- public int method0(int[] args) {return QueryInterface(args[0], args[1]);}
- public int method1(int[] args) {return AddRef();}
- public int method2(int[] args) {return Release();}
- public int method3(int[] args) {return GetData(args[0], args[1]);}
- // method4 GetDataHere - not implemented
- public int method5(int[] args) {return QueryGetData(args[0]);}
- // method6 GetCanonicalFormatEtc - not implemented
- public int method7(int[] args) {return SetData(args[0], args[1], args[2]);}
- public int method8(int[] args) {return EnumFormatEtc(args[0], args[1]);}
- // method9 DAdvise - not implemented
- // method10 DUnadvise - not implemented
- // method11 EnumDAdvise - not implemented
- };
-}
-private void onDispose () {
- this.Release();
-
- if (control != null && controlListener != null){
- control.removeListener(SWT.Dispose, controlListener);
- control.removeListener(SWT.DragDetect, controlListener);
- }
- controlListener = null;
- control = null;
-
- transferAgents = null;
-}
-private int osToOp(int osOperation){
- int operation = 0;
- if ((osOperation & COM.DROPEFFECT_COPY) != 0){
- operation |= DND.DROP_COPY;
- }
- if ((osOperation & COM.DROPEFFECT_LINK) != 0) {
- operation |= DND.DROP_LINK;
- }
- if ((osOperation & COM.DROPEFFECT_MOVE) != 0) {
- operation |= DND.DROP_MOVE;
- }
- return operation;
-
-}
-private void disposeCOMInterfaces() {
-
- if (iUnknown != null)
- iUnknown.dispose();
- iUnknown = null;
-
- if (iDropSource != null)
- iDropSource.dispose();
- iDropSource = null;
-
- if (iDataObject != null)
- iDataObject.dispose();
- iDataObject = null;
-}
-private void drag() {
-
- if (transferAgents == null || getStyle() == 0) return;
-
- DNDEvent event = new DNDEvent();
- event.widget = this;
- event.time = OS.GetMessageTime();
- event.doit = true;
-
- try {
- notifyListeners(DND.DragStart,event);
- } catch (Throwable e) {
- return;
- }
-
- if (!event.doit) return;
-
- dataEffect = DND.DROP_NONE;
- int[] pdwEffect = new int[1];
- int result = COM.DoDragDrop(iDataObject.getAddress(), iDropSource.getAddress(), getStyle(), pdwEffect);
- int operation = osToOp(pdwEffect[0]);
- event = new DNDEvent();
- event.widget = this;
- event.time = OS.GetMessageTime();
- if (dataEffect == DND.DROP_MOVE && (operation == DND.DROP_NONE || operation == DND.DROP_COPY)) {
- dataEffect = DND.DROP_TARGET_MOVE;
- }
- if (dataEffect == DND.DROP_NONE) {
- dataEffect = operation;
- }
- event.detail = dataEffect;
- event.doit = (result == COM.DRAGDROP_S_DROP);
-
- try {
- notifyListeners(DND.DragEnd,event);
- } catch (Throwable e) {
- }
-}
-
-private int EnumFormatEtc(int dwDirection, int ppenumFormatetc) {
- // only allow getting of data - SetData is not currently supported
- if (dwDirection == COM.DATADIR_SET) return COM.E_NOTIMPL;
-
- // what types have been registered?
- TransferData[] allowedDataTypes = new TransferData[0];
- for (int i = 0; i < transferAgents.length; i++){
- TransferData[] formats = transferAgents[i].getSupportedTypes();
- TransferData[] newAllowedDataTypes = new TransferData[allowedDataTypes.length + formats.length];
- System.arraycopy(allowedDataTypes, 0, newAllowedDataTypes, 0, allowedDataTypes.length);
- System.arraycopy(formats, 0, newAllowedDataTypes, allowedDataTypes.length, formats.length);
- allowedDataTypes = newAllowedDataTypes;
- }
-
- OleEnumFORMATETC enumFORMATETC = new OleEnumFORMATETC();
- enumFORMATETC.AddRef();
-
- FORMATETC[] formats = new FORMATETC[allowedDataTypes.length];
- for (int i = 0; i < formats.length; i++){
- formats[i] = allowedDataTypes[i].formatetc;
- }
- enumFORMATETC.setFormats(formats);
-
- COM.MoveMemory(ppenumFormatetc, new int[] {enumFORMATETC.getAddress()}, 4);
- return COM.S_OK;
-}
-/**
- * Returns the Control which is registered for this DragSource. This is the control that the
- * user clicks in to initiate dragging.
- *
- * @return the Control which is registered for this DragSource
- */
-public Control getControl () {
- return control;
-}
-private int GetData(int pFormatetc, int pmedium) {
- /* Called by a data consumer to obtain data from a source data object.
- The GetData method renders the data described in the specified FORMATETC
- structure and transfers it through the specified STGMEDIUM structure.
- The caller then assumes responsibility for releasing the STGMEDIUM structure.
- */
- if (pFormatetc == 0 || pmedium == 0) return COM.E_INVALIDARG;
-
- if (QueryGetData(pFormatetc) != COM.S_OK) return COM.DV_E_FORMATETC;
-
- TransferData transferData = new TransferData();
- transferData.formatetc = new FORMATETC();
- COM.MoveMemory(transferData.formatetc, pFormatetc, FORMATETC.sizeof);
- transferData.type = transferData.formatetc.cfFormat;
- transferData.stgmedium = new STGMEDIUM();
- transferData.result = COM.E_FAIL;
-
- DNDEvent event = new DNDEvent();
- event.widget = this;
- event.time = OS.GetMessageTime();
- event.dataType = transferData;
- try {
- notifyListeners(DND.DragSetData,event);
- } catch (Throwable e) {
- return COM.E_FAIL;
- }
-
- if (event.data == null) return COM.DV_E_FORMATETC;
-
- // get matching transfer agent to perform conversion
- Transfer transfer = null;
- for (int i = 0; i < transferAgents.length; i++){
- if (transferAgents[i].isSupportedType(event.dataType )){
- transfer = transferAgents[i];
- break;
- }
- }
- if (transfer == null) return COM.DV_E_FORMATETC;
-
- transfer.javaToNative(event.data, transferData);
- COM.MoveMemory(pmedium, transferData.stgmedium, STGMEDIUM.sizeof);
- return transferData.result;
-}
-
-
-public Display getDisplay () {
-
- if (control == null) DND.error(SWT.ERROR_WIDGET_DISPOSED);
- return control.getDisplay ();
-}
-/**
- * Returns the list of data types that can be transferred by this DragSource.
- *
- * @return the list of data types that can be transferred by this DragSource
- */
-public Transfer[] getTransfer(){
- return transferAgents;
-}
-private int GiveFeedback(int dwEffect) {
- return COM.DRAGDROP_S_USEDEFAULTCURSORS;
-}
-
-
-private int QueryContinueDrag(int fEscapePressed, int grfKeyState) {
- if (fEscapePressed != 0)
- return COM.DRAGDROP_S_CANCEL;
- if ((grfKeyState & (OS.MK_LBUTTON | OS.MK_MBUTTON | OS.MK_RBUTTON)) == 0)
- return COM.DRAGDROP_S_DROP;
-
- return COM.S_OK;
-}
-private int QueryGetData(int pFormatetc) {
-
- if (transferAgents == null) return COM.E_FAIL;
-
- TransferData transferData = new TransferData();
- transferData.formatetc = new FORMATETC();
- COM.MoveMemory(transferData.formatetc, pFormatetc, FORMATETC.sizeof);
- transferData.type = transferData.formatetc.cfFormat;
-
- // is this type supported by the transfer agent?
- for (int i = 0; i < transferAgents.length; i++){
- if (transferAgents[i].isSupportedType(transferData))
- return COM.S_OK;
- }
-
- return COM.DV_E_FORMATETC;
-}
-private int QueryInterface(int riid, int ppvObject) {
-
- if (riid == 0 || ppvObject == 0)
- return COM.E_INVALIDARG;
- GUID guid = new GUID();
- COM.MoveMemory(guid, riid, GUID.sizeof);
-
- if (COM.IsEqualGUID(guid, COM.IIDIUnknown)) {
- COM.MoveMemory(ppvObject, new int[] {iUnknown.getAddress()}, 4);
- AddRef();
- return COM.S_OK;
- }
-
- if (COM.IsEqualGUID(guid, COM.IIDIDropSource)) {
- COM.MoveMemory(ppvObject, new int[] {iDropSource.getAddress()}, 4);
- AddRef();
- return COM.S_OK;
- }
-
- if (COM.IsEqualGUID(guid, COM.IIDIDataObject) ) {
- COM.MoveMemory(ppvObject, new int[] {iDataObject.getAddress()}, 4);
- AddRef();
- return COM.S_OK;
- }
-
- COM.MoveMemory(ppvObject, new int[] {0}, 4);
- return COM.E_NOINTERFACE;
-}
-private int Release() {
- refCount--;
- if (refCount == 0) {
- disposeCOMInterfaces();
- COM.CoFreeUnusedLibraries();
- }
-
- return refCount;
-}
-/**
- * Removes the listener.
- *
- * @param listener the listener
- *
- * @exception SWTError
- * <ul><li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
- * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
- * <li>ERROR_NULL_ARGUMENT when listener is null</li></ul>
- */
-public void removeDragListener(DragSourceListener listener) {
- if (listener == null) DND.error (SWT.ERROR_NULL_ARGUMENT);
- removeListener (DND.DragStart, listener);
- removeListener (DND.DragEnd, listener);
- removeListener (DND.DragSetData, listener);
-}
-private static int CFSTR_PERFORMEDDROPEFFECT = Transfer.registerType("Performed DropEffect");
-private int SetData(int pFormatetc, int pmedium, int fRelease) {
-
- if (pFormatetc == 0 || pmedium == 0) return COM.E_INVALIDARG;
-
- FORMATETC formatetc = new FORMATETC();
- COM.MoveMemory(formatetc, pFormatetc, FORMATETC.sizeof);
- if (formatetc.cfFormat == CFSTR_PERFORMEDDROPEFFECT && formatetc.tymed == COM.TYMED_HGLOBAL) {
- STGMEDIUM stgmedium = new STGMEDIUM();
- COM.MoveMemory(stgmedium, pmedium,STGMEDIUM.sizeof);
- int[] ptrEffect = new int[1];
- OS.MoveMemory(ptrEffect, stgmedium.unionField,4);
- int[] effect = new int[1];
- OS.MoveMemory(effect, ptrEffect[0],4);
- dataEffect = osToOp(effect[0]);
- }
- if (fRelease == 1) {
- COM.ReleaseStgMedium(pmedium);
- }
- return COM.S_OK;
-}
-/**
- * Specifies the list of data types that can be transferred by this DragSource.
- * The application must be able to provide data to match each of these types when
- * a successful drop has occurred.
- */
-public void setTransfer(Transfer[] transferAgents){
- this.transferAgents = transferAgents;
-}
-protected void checkSubclass () {
- String name = getClass().getName ();
- String validName = DragSource.class.getName();
- if (!validName.equals(name)) {
- DND.error (SWT.ERROR_INVALID_SUBCLASS);
- }
-}
-
-
-}

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