diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/DirectoryDialog.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/DirectoryDialog.java | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/DirectoryDialog.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/DirectoryDialog.java new file mode 100755 index 0000000000..421245adae --- /dev/null +++ b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/DirectoryDialog.java @@ -0,0 +1,233 @@ +package org.eclipse.swt.widgets;
+
+/*
+ * Licensed Materials - Property of IBM,
+ * (c) Copyright IBM Corp. 1998, 2001 All Rights Reserved
+ */
+
+import org.eclipse.swt.internal.*;
+import org.eclipse.swt.internal.win32.*;
+import org.eclipse.swt.*;
+import org.eclipse.swt.widgets.*;
+
+/**
+ * Instances of this class allow the user to navigate
+ * the file system and select a directory.
+ * <p>
+ * IMPORTANT: This class is intended to be subclassed <em>only</em>
+ * within the SWT implementation.
+ * </p>
+ */
+
+public class DirectoryDialog extends Dialog {
+ String message = "", filterPath = "";
+ String directoryPath;
+
+/**
+ * Constructs a new instance of this class given only its
+ * parent.
+ * <p>
+ * Note: Currently, null can be passed in for the parent.
+ * This has the effect of creating the dialog on the currently active
+ * display if there is one. If there is no current display, the
+ * dialog is created on a "default" display. <b>Passing in null as
+ * the parent is not considered to be good coding style,
+ * and may not be supported in a future release of SWT.</b>
+ * </p>
+ *
+ * @param parent a shell which will be the parent of the new instance
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ */
+public DirectoryDialog (Shell parent) {
+ this (parent, SWT.PRIMARY_MODAL);
+}
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * for all SWT dialog classes should include a comment which
+ * describes the style constants which are applicable to the class.
+ * </p>
+ * Note: Currently, null can be passed in for the parent.
+ * This has the effect of creating the dialog on the currently active
+ * display if there is one. If there is no current display, the
+ * dialog is created on a "default" display. <b>Passing in null as
+ * the parent is not considered to be good coding style,
+ * and may not be supported in a future release of SWT.</b>
+ * </p>
+ *
+ * @param parent a shell which will be the parent of the new instance
+ *
+ * @exception IllegalArgumentException <ul>
+ * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ */
+public DirectoryDialog (Shell parent, int style) {
+ super (parent, style);
+}
+
+int BrowseCallbackProc (int hwnd, int uMsg, int lParam, int lpData) {
+ switch (uMsg) {
+ case OS.BFFM_INITIALIZED:
+ if (filterPath != null && filterPath.length () != 0) {
+ byte [] buffer = Converter.wcsToMbcs (0, filterPath, true);
+ OS.SendMessage (hwnd, OS.BFFM_SETSELECTION, 1, buffer);
+ }
+ if (title != null && title.length () != 0) {
+ byte [] buffer = Converter.wcsToMbcs (0, title, true);
+ OS.SetWindowText (hwnd, buffer);
+ }
+ break;
+ case OS.BFFM_VALIDATEFAILED:
+ byte [] buffer1 = new byte [256];
+ OS.MoveMemory (buffer1, lParam, 256);
+ char [] buffer2 = Converter.mbcsToWcs (0, buffer1);
+ int length = 0;
+ while (length < buffer2.length && buffer2 [length] != 0) length++;
+ directoryPath = new String (buffer2, 0, length);
+ break;
+ }
+ return 0;
+}
+
+/**
+ * Returns the path which the receiver will use to filter
+ * the directories it shows.
+ *
+ * @return the filter path
+ */
+public String getFilterPath () {
+ return filterPath;
+}
+
+/**
+ * Returns the receiver's message, which is a description of
+ * the purpose for which it was opened. This message will be
+ * visible on the receiver while it is open.
+ *
+ * @return the message
+ */
+public String getMessage () {
+ return message;
+}
+
+/**
+ * Makes the receiver visible and brings it to the front
+ * of the display.
+ *
+ * @return a string describing the absolute path of the selected directory
+ *
+ * @exception SWTException <ul>
+ * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public String open () {
+
+ /* Initialize OLE */
+ OS.OleInitialize (0);
+
+ int hHeap = OS.GetProcessHeap ();
+
+ /* Get the owner HWND for the dialog */
+ int hwndOwner = 0;
+ if (parent != null) hwndOwner = parent.handle;
+
+ /* Copy the message to OS memory */
+ int lpszTitle = 0;
+ if (message != null && message.length () != 0) {
+ byte [] buffer = Converter.wcsToMbcs (0, message, true);
+ lpszTitle = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, buffer.length);
+ OS.MoveMemory (lpszTitle, buffer, buffer.length);
+ }
+
+ /* Create the BrowseCallbackProc */
+ Callback callback = new Callback (this, "BrowseCallbackProc", 4);
+ int address = callback.getAddress ();
+
+ /* Open the dialog */
+ directoryPath = null;
+ BROWSEINFO lpbi = new BROWSEINFO ();
+ lpbi.hwndOwner = hwndOwner;
+ lpbi.lpszTitle = lpszTitle;
+ lpbi.ulFlags = OS.BIF_RETURNONLYFSDIRS | OS.BIF_EDITBOX | OS.BIF_VALIDATE;
+ lpbi.lpfn = address;
+ int lpItemIdList = OS.SHBrowseForFolder (lpbi);
+ if (lpItemIdList != 0) {
+ byte [] buffer = new byte [256];
+ if (OS.SHGetPathFromIDList (lpItemIdList, buffer)) {
+ char [] path = Converter.mbcsToWcs (0, buffer);
+ int length = 0;
+ while ((length < path.length) && (path [length] != 0)) length++;
+ directoryPath = new String (path, 0, length);
+ }
+ }
+
+ /* Free the BrowseCallbackProc */
+ callback.dispose ();
+
+ /* Free the OS memory */
+ if (lpszTitle != 0) OS.HeapFree (hHeap, 0, lpszTitle);
+
+ /* Free the pointer to the ITEMIDLIST */
+ int [] ppMalloc = new int [1];
+ if (OS.SHGetMalloc (ppMalloc) == OS.S_OK) {
+ /* void Free (struct IMalloc *this, void *pv); */
+ OS.VtblCall (5, ppMalloc [0], lpItemIdList);
+ }
+
+ /* Uninitialize OLE */
+ OS.OleUninitialize ();
+
+ /*
+ * This code is intentionally commented. On some
+ * platforms, the owner window is repainted right
+ * away when a dialog window exits. This behavior
+ * is currently unspecified.
+ */
+// if (hwndOwner != 0) OS.UpdateWindow (hwndOwner);
+
+ /* Return the directory path */
+ return directoryPath;
+}
+
+/**
+ * Sets the path which the receiver will use to filter
+ * the directories it shows to the argument, which may be
+ * null.
+ *
+ * @param string the filter path
+ */
+public void setFilterPath (String string) {
+ filterPath = string;
+}
+
+/**
+ * Sets the receiver's message, which is a description of
+ * the purpose for which it was opened. This message will be
+ * visible on the receiver while it is open.
+ *
+ * @param string the message
+ */
+public void setMessage (String string) {
+ message = string;
+}
+
+}
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