diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Tree.java')
| -rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Tree.java | 1704 |
1 files changed, 0 insertions, 1704 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Tree.java b/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Tree.java deleted file mode 100755 index 26890dd122..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/win32/org/eclipse/swt/widgets/Tree.java +++ /dev/null @@ -1,1704 +0,0 @@ -package org.eclipse.swt.widgets;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved
- */
-
-import org.eclipse.swt.internal.win32.*;
-import org.eclipse.swt.*;
-import org.eclipse.swt.graphics.*;
-import org.eclipse.swt.events.*;
-
-/**
- * Instances of this class provide a selectable user interface object
- * that displays a hierarchy of items and issue notificiation when an
- * item in the hierarchy is selected.
- * <p>
- * The item children that may be added to instances of this class
- * must be of type <code>TreeItem</code>.
- * </p><p>
- * Note that although this class is a subclass of <code>Composite</code>,
- * it does not make sense to add <code>Control</code> children to it,
- * or set a layout on it.
- * </p><p>
- * <dl>
- * <dt><b>Styles:</b></dt>
- * <dd>SINGLE, MULTI, CHECK</dd>
- * <dt><b>Events:</b></dt>
- * <dd>Selection, DefaultSelection, Collapse, Expand</dd>
- * </dl>
- * <p>
- * IMPORTANT: This class is <em>not</em> intended to be subclassed.
- * </p>
- */
-public class Tree extends Composite {
- int hAnchor;
- TreeItem [] items;
- ImageList imageList;
- boolean dragStarted;
- boolean ignoreSelect, ignoreExpand, ignoreDeselect;
- static final int TreeProc;
- static final TCHAR TreeClass = new TCHAR (0, OS.WC_TREEVIEW, true);
- static {
- WNDCLASS lpWndClass = new WNDCLASS ();
- OS.GetClassInfo (0, TreeClass, lpWndClass);
- TreeProc = lpWndClass.lpfnWndProc;
- }
-
-/**
- * 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 widget classes should include a comment which
- * describes the style constants which are applicable to the class.
- * </p>
- *
- * @param parent a composite control which will be the parent of the new instance (cannot be null)
- * @param style the style of control to construct
- *
- * @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>
- *
- * @see SWT
- * @see Widget#checkSubclass
- * @see Widget#getStyle
- */
-public Tree (Composite parent, int style) {
- super (parent, checkStyle (style));
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when the receiver's selection changes, by sending
- * it one of the messages defined in the <code>SelectionListener</code>
- * interface.
- * <p>
- * When <code>widgetSelected</code> is called, the item field of the event object is valid.
- * If the reciever has <code>SWT.CHECK</code> style set and the check selection changes,
- * the event object detail field contains the value <code>SWT.CHECK</code>.
- * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked.
- * </p>
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @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>
- *
- * @see SelectionListener
- * @see #removeSelectionListener
- * @see SelectionEvent
- */
-public void addSelectionListener(SelectionListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.Selection, typedListener);
- addListener (SWT.DefaultSelection, typedListener);
-}
-
-/**
- * Adds the listener to the collection of listeners who will
- * be notified when an item in the receiver is expanded or collapsed
- * by sending it one of the messages defined in the <code>TreeListener</code>
- * interface.
- *
- * @param listener the listener which should be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @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>
- *
- * @see TreeListener
- * @see #removeTreeListener
- */
-public void addTreeListener(TreeListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- TypedListener typedListener = new TypedListener (listener);
- addListener (SWT.Expand, typedListener);
- addListener (SWT.Collapse, typedListener);
-}
-
-int callWindowProc (int msg, int wParam, int lParam) {
- if (handle == 0) return 0;
- return OS.CallWindowProc (TreeProc, handle, msg, wParam, lParam);
-}
-
-static int checkStyle (int style) {
- /*
- * Feature in Windows. It is not possible to create
- * a tree that scrolls and does not have scroll bars.
- * The TVS_NOSCROLL style will remove the scroll bars
- * but the tree will never scroll. Therefore, no matter
- * what style bits are specified, set the H_SCROLL and
- * V_SCROLL bits so that the SWT style will match the
- * widget that Windows creates.
- */
- style |= SWT.H_SCROLL | SWT.V_SCROLL;
- return checkBits (style, SWT.SINGLE, SWT.MULTI, 0, 0, 0, 0);
-}
-
-
-public Point computeSize (int wHint, int hHint, boolean changed) {
- checkWidget ();
- int width = 0, height = 0;
- RECT rect = new RECT ();
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0);
- while (hItem != 0) {
- rect.left = hItem;
- if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect) != 0) {
- width = Math.max (width, rect.right - rect.left);
- height += rect.bottom - rect.top;
- }
- hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem);
- }
- width = width * 2;
- if (width == 0) width = DEFAULT_WIDTH;
- if (height == 0) height = DEFAULT_HEIGHT;
- if (wHint != SWT.DEFAULT) width = wHint;
- if (hHint != SWT.DEFAULT) height = hHint;
- int border = getBorderWidth ();
- width += border * 2; height += border * 2;
- if ((style & SWT.V_SCROLL) != 0) {
- width += OS.GetSystemMetrics (OS.SM_CXVSCROLL);
- }
- if ((style & SWT.H_SCROLL) != 0) {
- height += OS.GetSystemMetrics (OS.SM_CYHSCROLL);
- }
- return new Point (width, height);
-}
-
-void createHandle () {
- super.createHandle ();
- state &= ~CANVAS;
-
- /* Set the checkbox image list */
- if ((style & SWT.CHECK) != 0) setCheckboxImageList ();
-
- /*
- * Feature in Windows. When the control is created,
- * it does not use the default system font. A new HFONT
- * is created and destroyed when the control is destroyed.
- * This means that a program that queries the font from
- * this control, uses the font in another control and then
- * destroys this control will have the font unexpectedly
- * destroyed in the other control. The fix is to assign
- * the font ourselves each time the control is created.
- * The control will not destroy a font that it did not
- * create.
- */
- int hFont = OS.GetStockObject (OS.SYSTEM_FONT);
- OS.SendMessage (handle, OS.WM_SETFONT, hFont, 0);
-}
-
-void createItem (TreeItem item, int hParent, int hInsertAfter) {
- int id = 0;
- while (id < items.length && items [id] != null) id++;
- if (id == items.length) {
- TreeItem [] newItems = new TreeItem [items.length + 4];
- System.arraycopy (items, 0, newItems, 0, items.length);
- items = newItems;
- }
- TVINSERTSTRUCT tvInsert = new TVINSERTSTRUCT ();
- tvInsert.hParent = hParent;
- tvInsert.hInsertAfter = hInsertAfter;
- tvInsert.lParam = id;
- tvInsert.iImage = OS.I_IMAGENONE;
- tvInsert.iSelectedImage = tvInsert.iImage;
- tvInsert.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM | OS.TVIF_IMAGE | OS.TVIF_SELECTEDIMAGE;
-
- /* Set the initial unchecked state */
- if ((style & SWT.CHECK) != 0) {
- tvInsert.mask = tvInsert.mask | OS.TVIF_STATE;
- tvInsert.state = 1 << 12;
- tvInsert.stateMask = OS.TVIS_STATEIMAGEMASK;
- }
-
- /* Insert the item */
- int hItem = OS.SendMessage (handle, OS.TVM_INSERTITEM, 0, tvInsert);
- if (hItem == 0) error (SWT.ERROR_ITEM_NOT_ADDED);
- item.handle = hItem;
- items [id] = item;
-
- /*
- * This code is intentionally commented.
- */
-// if (hParent != 0) {
-// int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
-// bits |= OS.TVS_LINESATROOT;
-// OS.SetWindowLong (handle, OS.GWL_STYLE, bits);
-// }
-
- /*
- * Bug in Windows. When a child item is added to a parent item
- * that has no children outside of WM_NOTIFY with control code
- * TVN_ITEMEXPANDED, the tree widget does not redraw the +/-
- * indicator. The fix is to detect this case and force a redraw.
- */
- if (!OS.IsWindowVisible (handle) || drawCount > 0) return;
- int hChild = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CHILD, hParent);
- if (hChild == 0 || OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hChild) != 0) {
- return;
- }
- RECT rect = new RECT ();
- rect.left = hParent;
- if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) != 0) {
- OS.InvalidateRect (handle, rect, false);
- }
-}
-
-ScrollBar createScrollBar (int type) {
- return new ScrollBar (this, type);
-}
-
-void createWidget () {
- super.createWidget ();
- items = new TreeItem [4];
-}
-
-int defaultBackground () {
- return OS.GetSysColor (OS.COLOR_WINDOW);
-}
-
-/**
- * Deselects all selected items in the receiver.
- *
- * @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 void deselectAll () {
- checkWidget ();
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE;
- tvItem.stateMask = OS.TVIS_SELECTED;
- if ((style & SWT.SINGLE) != 0) {
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- if (hItem != 0) {
- tvItem.hItem = hItem;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- return;
- }
- int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC);
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc);
- for (int i=0; i<items.length; i++) {
- TreeItem item = items [i];
- if (item != null) {
- tvItem.hItem = item.handle;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- }
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc);
-}
-
-void destroyItem (TreeItem item) {
- int hItem = item.handle;
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM;
- releaseItems (new TreeItem [] {item}, tvItem);
- boolean fixRedraw = false;
- if (drawCount == 0 && OS.IsWindowVisible (handle)) {
- RECT rect = new RECT ();
- rect.left = hItem;
- fixRedraw = OS.SendMessage (handle, OS.TVM_GETITEMRECT, 0, rect) == 0;
- }
- if (fixRedraw) {
- OS.UpdateWindow (handle);
- OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0);
- }
- int result = OS.SendMessage (handle, OS.TVM_DELETEITEM, 0, hItem);
- if (fixRedraw) {
- OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0);
- OS.ValidateRect (handle, null);
- }
- int count = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0);
- if (count == 0) {
- if (imageList != null) {
- OS.SendMessage (handle, OS.TVM_SETIMAGELIST, 0, 0);
- Display display = getDisplay ();
- display.releaseImageList (imageList);
- }
- imageList = null;
- items = new TreeItem [4];
- }
-}
-
-int getBackgroundPixel () {
- if (OS.IsWinCE) return OS.GetSysColor (OS.COLOR_WINDOW);
- int pixel = OS.SendMessage (handle, OS.TVM_GETBKCOLOR, 0, 0);
- if (pixel == -1) return OS.GetSysColor (OS.COLOR_WINDOW);
- return pixel;
-}
-
-int getForegroundPixel () {
- if (OS.IsWinCE) return OS.GetSysColor (OS.COLOR_WINDOWTEXT);
- int pixel = OS.SendMessage (handle, OS.TVM_GETTEXTCOLOR, 0, 0);
- if (pixel == -1) return OS.GetSysColor (OS.COLOR_WINDOWTEXT);
- return pixel;
-}
-
-/**
- * Returns the item at the given point in the receiver
- * or null if no such item exists. The point is in the
- * coordinate system of the receiver.
- *
- * @param point the point used to locate the item
- * @return the item at the given point
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @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 TreeItem getItem (Point point) {
- checkWidget ();
- if (point == null) error (SWT.ERROR_NULL_ARGUMENT);
- TVHITTESTINFO lpht = new TVHITTESTINFO ();
- lpht.x = point.x; lpht.y = point.y;
- OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht);
- if (lpht.hItem != 0 && (lpht.flags & OS.TVHT_ONITEM) != 0) {
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM;
- tvItem.hItem = lpht.hItem;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- return items [tvItem.lParam];
- }
- return null;
-}
-
-/**
- * Returns the number of items contained in the receiver
- * that are direct item children of the receiver. The
- * number that is returned is the number of roots in the
- * tree.
- *
- * @return the number of items
- *
- * @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 int getItemCount () {
- checkWidget ();
- int count = 0;
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0);
- while (hItem != 0) {
- hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem);
- count++;
- }
- return count;
-}
-
-/**
- * Returns the height of the area which would be used to
- * display <em>one</em> of the items in the tree.
- *
- * @return the height of one item
- *
- * @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 int getItemHeight () {
- checkWidget ();
- return OS.SendMessage (handle, OS.TVM_GETITEMHEIGHT, 0, 0);
-}
-
-/**
- * Returns the number of items contained in the receiver
- * that are direct item children of the receiver. These
- * are the roots of the tree.
- * <p>
- * Note: This is not the actual structure used by the receiver
- * to maintain its list of items, so modifying the array will
- * not affect the receiver.
- * </p>
- *
- * @return the number of items
- *
- * @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 TreeItem [] getItems () {
- checkWidget ();
- int count = 0;
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0);
- while (hItem != 0) {
- hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, hItem);
- count++;
- }
- int index = 0;
- TreeItem [] result = new TreeItem [count];
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM;
- tvItem.hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0);
- while (tvItem.hItem != 0) {
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- result [index++] = items [tvItem.lParam];
- tvItem.hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXT, tvItem.hItem);
- }
- return result;
-}
-
-/**
- * Returns the receiver's parent item, which must be a
- * <code>TreeItem</code> or null when the receiver is a
- * root.
- *
- * @return the receiver's parent item
- *
- * @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 TreeItem getParentItem () {
- checkWidget ();
- return null;
-}
-
-/**
- * Returns an array of <code>TreeItem</code>s that are currently
- * selected in the receiver. An empty array indicates that no
- * items are selected.
- * <p>
- * Note: This is not the actual structure used by the receiver
- * to maintain its selection, so modifying the array will
- * not affect the receiver.
- * </p>
- * @return an array representing the selection
- *
- * @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 TreeItem [] getSelection () {
- checkWidget ();
- if ((style & SWT.SINGLE) != 0) {
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- if (hItem == 0) return new TreeItem [0];
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE;
- tvItem.hItem = hItem;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- if ((tvItem.state & OS.TVIS_SELECTED) == 0) return new TreeItem [0];
- return new TreeItem [] {items [tvItem.lParam]};
- }
- int count = 0;
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE;
- int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC);
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc);
- for (int i=0; i<items.length; i++) {
- TreeItem item = items [i];
- if (item != null) {
- tvItem.hItem = item.handle;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- if ((tvItem.state & OS.TVIS_SELECTED) != 0) count++;
- }
- }
- TreeItem [] result = new TreeItem [count];
- if (count != 0) {
- int index = 0;
- for (int i=0; i<items.length; i++) {
- TreeItem item = items [i];
- if (item != null) {
- tvItem.hItem = item.handle;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- if ((tvItem.state & OS.TVIS_SELECTED) != 0) {
- result [index++] = item;
- }
- }
- }
- }
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc);
- return result;
-}
-
-/**
- * Returns the number of selected items contained in the receiver.
- *
- * @return the number of selected items
- *
- * @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 int getSelectionCount () {
- checkWidget ();
- if ((style & SWT.SINGLE) != 0) {
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- if (hItem == 0) return 0;
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE;
- tvItem.hItem = hItem;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- if ((tvItem.state & OS.TVIS_SELECTED) == 0) return 0;
- return 1;
- }
- int count = 0;
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE;
- int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC);
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc);
- for (int i=0; i<items.length; i++) {
- TreeItem item = items [i];
- if (item != null) {
- tvItem.hItem = item.handle;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- if ((tvItem.state & OS.TVIS_SELECTED) != 0) count++;
- }
- }
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc);
- return count;
-}
-
-int imageIndex (Image image) {
- if (image == null) return OS.I_IMAGENONE;
- if (imageList == null) {
- int hOldList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_NORMAL, 0);
- if (hOldList != 0) OS.ImageList_Destroy (hOldList);
- Rectangle bounds = image.getBounds ();
- imageList = getDisplay ().getImageList (new Point (bounds.width, bounds.height));
- int index = imageList.indexOf (image);
- if (index == -1) index = imageList.add (image);
- int hImageList = imageList.getHandle ();
- OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_NORMAL, hImageList);
- return index;
- }
- int index = imageList.indexOf (image);
- if (index != -1) return index;
- return imageList.add (image);
-}
-
-void releaseItems (TreeItem [] nodes, TVITEM tvItem) {
- for (int i=0; i<nodes.length; i++) {
- TreeItem item = nodes [i];
- TreeItem [] sons = item.getItems ();
- if (sons.length != 0) {
- releaseItems (sons, tvItem);
- }
- int hItem = item.handle;
- if (hItem == hAnchor) hAnchor = 0;
- if (!item.isDisposed ()) {
- tvItem.hItem = hItem;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- items [tvItem.lParam] = null;
- item.releaseWidget ();
- item.releaseHandle ();
- }
- }
-}
-
-void releaseWidget () {
- for (int i=0; i<items.length; i++) {
- TreeItem item = items [i];
- if (item != null && !item.isDisposed ()) {
- item.releaseWidget ();
- item.releaseHandle ();
- }
- }
- items = null;
- if (imageList != null) {
- OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_NORMAL, 0);
- Display display = getDisplay ();
- display.releaseImageList (imageList);
- } else {
- int hOldList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_NORMAL, 0);
- OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_NORMAL, 0);
- if (hOldList != 0) OS.ImageList_Destroy (hOldList);
- }
- imageList = null;
- int hOldList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_STATE, 0);
- OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_STATE, 0);
- if (hOldList != 0) OS.ImageList_Destroy (hOldList);
- super.releaseWidget ();
-}
-
-
-/**
- * Removes all of the items from the receiver.
- * <p>
- * @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 void removeAll () {
- checkWidget ();
- ignoreDeselect = ignoreSelect = true;
- int result = OS.SendMessage (handle, OS.TVM_DELETEITEM, 0, OS.TVI_ROOT);
- ignoreDeselect = ignoreSelect = false;
- if (result == 0) error (SWT.ERROR_ITEM_NOT_REMOVED);
- for (int i=0; i<items.length; i++) {
- TreeItem item = items [i];
- if (item != null && !item.isDisposed ()) {
- item.releaseWidget ();
- item.releaseHandle ();
- }
- }
- if (imageList != null) {
- OS.SendMessage (handle, OS.TVM_SETIMAGELIST, 0, 0);
- Display display = getDisplay ();
- display.releaseImageList (imageList);
- }
- imageList = null;
- items = new TreeItem [4];
- hAnchor = 0;
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when the receiver's selection changes.
- *
- * @param listener the listener which should no longer be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @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>
- *
- * @see SelectionListener
- * @see #addSelectionListener
- */
-public void removeSelectionListener (SelectionListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- eventTable.unhook (SWT.Selection, listener);
- eventTable.unhook (SWT.DefaultSelection, listener);
-}
-
-/**
- * Removes the listener from the collection of listeners who will
- * be notified when items in the receiver are expanded or collapsed..
- *
- * @param listener the listener which should no longer be notified
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @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>
- *
- * @see TreeListener
- * @see #addTreeListener
- */
-public void removeTreeListener(TreeListener listener) {
- checkWidget ();
- if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (eventTable == null) return;
- eventTable.unhook (SWT.Expand, listener);
- eventTable.unhook (SWT.Collapse, listener);
-}
-
-/**
- * Display a mark indicating the point at which an item will be inserted.
- * The drop insert item has a visual hint to show where a dragged item
- * will be inserted when dropped on the tree.
- *
- * @param item the insert item. Null will clear the insertion mark.
- * @param after true places the insert mark above 'item'. false places
- * the insert mark below 'item'.
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li>
- * </ul>
- * @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 void setInsertMark (TreeItem item, boolean before) {
- checkWidget ();
- int hItem = 0;
- if (item != null) {
- if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
- hItem = item.handle;
- }
- OS.SendMessage (handle, OS.TVM_SETINSERTMARK, (before) ? 0 : 1, hItem);
-}
-
-/**
- * Selects all the items in the receiver.
- *
- * @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 void selectAll () {
- checkWidget ();
- if ((style & SWT.SINGLE) != 0) return;
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- if (hItem == 0) {
- hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0);
- if (hItem != 0) {
- ignoreSelect = true;
- OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, hItem);
- ignoreSelect = false;
- OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, hItem);
- }
- }
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE;
- tvItem.state = OS.TVIS_SELECTED;
- tvItem.stateMask = OS.TVIS_SELECTED;
- int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC);
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc);
- for (int i=0; i<items.length; i++) {
- TreeItem item = items [i];
- if (item != null) {
- tvItem.hItem = item.handle;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- }
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc);
-}
-
-void setBackgroundPixel (int pixel) {
- if (background == pixel) return;
- background = pixel;
- /*
- * Bug in Windows. When TVM_GETBKCOLOR is used more
- * than once to set the background color of a tree,
- * the background color of the lines and the plus/minus
- * does not change to the new color. The fix is to set
- * the background color to the default before setting
- * the new color.
- */
- int oldPixel = OS.SendMessage (handle, OS.TVM_GETBKCOLOR, 0, 0);
- if (oldPixel != -1) OS.SendMessage (handle, OS.TVM_SETBKCOLOR, 0, -1);
- OS.SendMessage (handle, OS.TVM_SETBKCOLOR, 0, pixel);
- if ((style & SWT.CHECK) != 0) setCheckboxImageList ();
-}
-
-void setCheckboxImageList () {
- if ((style & SWT.CHECK) == 0) return;
- int count = 5;
- int height = OS.SendMessage (handle, OS.TVM_GETITEMHEIGHT, 0, 0), width = height;
- int hImageList = OS.ImageList_Create (width, height, OS.ILC_COLOR, count, count);
- int hDC = OS.GetDC (handle);
- int memDC = OS.CreateCompatibleDC (hDC);
- int hBitmap = OS.CreateCompatibleBitmap (hDC, width * count, height);
- int hOldBitmap = OS.SelectObject (memDC, hBitmap);
- RECT rect = new RECT ();
- OS.SetRect (rect, 0, 0, width * count, height);
- int hBrush = OS.CreateSolidBrush (getBackgroundPixel ());
- OS.FillRect (memDC, rect, hBrush);
- OS.DeleteObject (hBrush);
- int oldFont = OS.SelectObject (hDC, defaultFont ());
- TEXTMETRIC tm = new TEXTMETRIC ();
- OS.GetTextMetrics (hDC, tm);
- OS.SelectObject (hDC, oldFont);
- int itemWidth = Math.min (tm.tmHeight, width);
- int itemHeight = Math.min (tm.tmHeight, height);
- int left = (width - itemWidth) / 2, top = (height - itemHeight) / 2 + 1;
- OS.SetRect (rect, left + width, top, left + width + itemWidth, top + itemHeight);
- OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_FLAT);
- rect.left += width; rect.right += width;
- OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_FLAT);
- rect.left += width; rect.right += width;
- OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_INACTIVE | OS.DFCS_FLAT);
- rect.left += width; rect.right += width;
- OS.DrawFrameControl (memDC, rect, OS.DFC_BUTTON, OS.DFCS_BUTTONCHECK | OS.DFCS_CHECKED | OS.DFCS_INACTIVE | OS.DFCS_FLAT);
- OS.SelectObject (memDC, hOldBitmap);
- OS.DeleteDC (memDC);
- OS.ReleaseDC (handle, hDC);
- OS.ImageList_AddMasked (hImageList, hBitmap, 0);
- OS.DeleteObject (hBitmap);
- int hOldList = OS.SendMessage (handle, OS.TVM_GETIMAGELIST, OS.TVSIL_STATE, 0);
- OS.SendMessage (handle, OS.TVM_SETIMAGELIST, OS.TVSIL_STATE, hImageList);
- if (hOldList != 0) OS.ImageList_Destroy (hOldList);
-}
-
-void setForegroundPixel (int pixel) {
- if (foreground == pixel) return;
- foreground = pixel;
- OS.SendMessage (handle, OS.TVM_SETTEXTCOLOR, 0, pixel);
-}
-
-public void setRedraw (boolean redraw) {
- checkWidget ();
- /*
- * Bug in Windows. For some reason, when WM_SETREDRAW
- * is used to turn redraw on for a tree and the tree
- * contains no items, the last item in the tree does
- * not redraw properly. If the tree has only one item,
- * that item is not drawn. If another window is dragged
- * on top of the item, parts of the item are redrawn
- * and erased at random. The fix is to ensure that this
- * case doesn't happen by inserting and deleting an item
- * when redraw is turned on and there are no items in
- * the tree.
- */
- int hItem = 0;
- if (redraw) {
- int count = OS.SendMessage (handle, OS.TVM_GETCOUNT, 0, 0);
- if (count == 0) {
- TVINSERTSTRUCT tvInsert = new TVINSERTSTRUCT ();
- tvInsert.hInsertAfter = OS.TVI_FIRST;
- hItem = OS.SendMessage (handle, OS.TVM_INSERTITEM, 0, tvInsert);
- }
- }
- super.setRedraw (redraw);
- if (hItem != 0) {
- OS.SendMessage (handle, OS.TVM_DELETEITEM, 0, hItem);
- }
-}
-
-/**
- * Sets the receiver's selection to be the given array of items.
- * The current selected is first cleared, then the new items are
- * selected.
- *
- * @param items the array of items
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the array of items is null</li>
- * <li>ERROR_INVALID_ARGUMENT - if one of the item has been disposed</li>
- * </ul>
- * @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>
- *
- * @see Tree#deselectAll()
- */
-public void setSelection (TreeItem [] items) {
- checkWidget ();
- if (items == null) error (SWT.ERROR_NULL_ARGUMENT);
-
- /* Select/deselect the first item */
- int hOldItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- if (items.length == 0) {
- if (hOldItem != 0) {
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE;
- tvItem.stateMask = OS.TVIS_SELECTED;
- tvItem.hItem = hOldItem;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- } else {
- int hNewItem = 0;
- TreeItem item = items [0];
- if (item != null) {
- if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
- hNewItem = item.handle;
- }
- ignoreSelect = true;
- OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, hNewItem);
- ignoreSelect = false;
- /*
- * Feature in Windows. When the old and new focused item
- * are the same, Windows does not check to make sure that
- * the item is actually selected, not just focused. The
- * fix is to force the item to draw selected by setting
- * the state mask.
- */
- if (hOldItem == hNewItem) {
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE;
- tvItem.state = OS.TVIS_SELECTED;
- tvItem.stateMask = OS.TVIS_SELECTED;
- tvItem.hItem = hNewItem;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- }
- if ((style & SWT.SINGLE) != 0) return;
-
- /* Select/deselect the rest of the items */
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE;
- tvItem.stateMask = OS.TVIS_SELECTED;
- int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC);
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc);
- for (int i=0; i<this.items.length; i++) {
- TreeItem item = this.items [i];
- if (item != null) {
- int index = 0;
- while (index < items.length) {
- if (items [index] == item) break;
- index++;
- }
- tvItem.hItem = item.handle;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- if ((tvItem.state & OS.TVIS_SELECTED) != 0) {
- if (index == items.length) {
- tvItem.state = 0;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- } else {
- if (index != items.length) {
- tvItem.state = OS.TVIS_SELECTED;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- }
- }
- }
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc);
-}
-
-/**
- * Shows the item. If the item is already showing in the receiver,
- * this method simply returns. Otherwise, the items are scrolled
- * and expanded until the item is visible.
- *
- * @param item the item to be shown
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the item is null</li>
- * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li>
- * </ul>
- * @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>
- *
- * @see Tree#showSelection()
- */
-public void showItem (TreeItem item) {
- checkWidget ();
- if (item == null) error (SWT.ERROR_NULL_ARGUMENT);
- if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
- OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, item.handle);
-}
-
-/**
- * Shows the selection. If the selection is already showing in the receiver,
- * this method simply returns. Otherwise, the items are scrolled until
- * the selection is visible.
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the listener is null</li>
- * </ul>
- * @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>
- *
- * @see Tree#showItem(TreeItem)
- */
-public void showSelection () {
- checkWidget ();
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- if (hItem == 0) return;
- OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, hItem);
-}
-
-int widgetStyle () {
- int bits = super.widgetStyle () | OS.TVS_SHOWSELALWAYS;
- bits |= OS.TVS_LINESATROOT | OS.TVS_HASLINES | OS.TVS_HASBUTTONS;
- /*
- * This code is intentionally commented. In future,
- * FULL_SELECTION may be implemented for trees and
- * automatic tool tips turned off.
- */
-// if ((style & SWT.FULL_SELECTION) != 0) {
-// bits |= OS.TVS_FULLROWSELECT;
-// } else {
-// bits |= OS.TVS_HASLINES | OS.TVS_HASBUTTONS;
-// }
-// bits |= OS.TVS_NOTOOLTIPS;
- return bits;
-}
-
-TCHAR windowClass () {
- return TreeClass;
-}
-
-int windowProc () {
- return TreeProc;
-}
-
-LRESULT WM_CHAR (int wParam, int lParam) {
- LRESULT result = super.WM_CHAR (wParam, lParam);
- if (result != null) return result;
- /*
- * Feature in Windows. The tree control beeps
- * in WM_CHAR when the search for the item that
- * matches the key stroke fails. This is the
- * standard tree behavior but is unexpected when
- * the key that was typed was CR or SPACE. The
- * fix is to avoid calling the tree window proc
- * in these cases.
- */
- switch (wParam) {
- case OS.VK_RETURN:
- case OS.VK_SPACE: return LRESULT.ZERO;
- }
- return result;
-}
-
-LRESULT WM_KEYDOWN (int wParam, int lParam) {
- LRESULT result = super.WM_KEYDOWN (wParam, lParam);
- if (result != null) return result;
- switch (wParam) {
- case OS.VK_SPACE: {
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- if (hItem != 0) {
- hAnchor = hItem;
- OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, hItem);
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE | OS.TVIF_PARAM;
- tvItem.hItem = hItem;
- if ((style & SWT.CHECK) != 0) {
- tvItem.stateMask = OS.TVIS_STATEIMAGEMASK;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- int state = tvItem.state >> 12;
- if ((state & 0x1) != 0) {
- state++;
- } else {
- --state;
- }
- tvItem.state = state << 12;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- tvItem.stateMask = OS.TVIS_SELECTED;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- if ((style & SWT.MULTI) != 0 && OS.GetKeyState (OS.VK_CONTROL) < 0) {
- if ((tvItem.state & OS.TVIS_SELECTED) != 0) {
- tvItem.state &= ~OS.TVIS_SELECTED;
- } else {
- tvItem.state |= OS.TVIS_SELECTED;
- }
- } else {
- tvItem.state |= OS.TVIS_SELECTED;
- }
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- TreeItem item = items [tvItem.lParam];
- Event event = new Event ();
- event.item = item;
- postEvent (SWT.Selection, event);
- if ((style & SWT.CHECK) != 0) {
- event = new Event ();
- event.item = item;
- event.detail = SWT.CHECK;
- postEvent (SWT.Selection, event);
- }
- return LRESULT.ZERO;
- }
- break;
- }
- case OS.VK_UP:
- case OS.VK_DOWN:
- case OS.VK_PRIOR:
- case OS.VK_NEXT:
- case OS.VK_HOME:
- case OS.VK_END: {
- if ((style & SWT.SINGLE) != 0) break;
- if (OS.GetKeyState (OS.VK_SHIFT) < 0) {
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- if (hItem != 0) {
- if (hAnchor == 0) hAnchor = hItem;
- boolean selected = false;
- ignoreSelect = ignoreDeselect = true;
- int code = callWindowProc (OS.WM_KEYDOWN, wParam, lParam);
- ignoreSelect = ignoreDeselect = false;
- int hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE;
- tvItem.stateMask = OS.TVIS_SELECTED;
- int hDeselectItem = hItem;
- RECT rect1 = new RECT ();
- rect1.left = hAnchor;
- OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect1);
- RECT rect2 = rect2 = new RECT ();
- rect2.left = hDeselectItem;
- OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect2);
- int flags = rect1.top < rect2.top ? OS.TVGN_PREVIOUSVISIBLE : OS.TVGN_NEXTVISIBLE;
- while (hDeselectItem != hAnchor) {
- tvItem.hItem = hDeselectItem;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- hDeselectItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, flags, hDeselectItem);
- }
- int hSelectItem = hAnchor;
- rect1.left = hNewItem;
- OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect1);
- rect2.left = hSelectItem;
- OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect2);
- tvItem.state = OS.TVIS_SELECTED;
- flags = rect1.top < rect2.top ? OS.TVGN_PREVIOUSVISIBLE : OS.TVGN_NEXTVISIBLE;
- while (hSelectItem != hNewItem) {
- tvItem.hItem = hSelectItem;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- hSelectItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, flags, hSelectItem);
- }
- tvItem.hItem = hNewItem;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- tvItem.mask = OS.TVIF_STATE | OS.TVIF_PARAM;
- tvItem.hItem = hNewItem;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- Event event = new Event ();
- if ((tvItem.state & OS.TVIS_SELECTED) != 0) {
- event.item = items [tvItem.lParam];
- }
- postEvent (SWT.Selection, event);
- return new LRESULT (code);
- }
- }
- if (OS.GetKeyState (OS.VK_CONTROL) < 0) {
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- if (hItem != 0) {
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE;
- tvItem.stateMask = OS.TVIS_SELECTED;
- tvItem.hItem = hItem;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- boolean oldSelected = (tvItem.state & OS.TVIS_SELECTED) != 0;
- int hNewItem = 0;
- switch (wParam) {
- case OS.VK_UP:
- hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUSVISIBLE, hItem);
- break;
- case OS.VK_DOWN:
- hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hItem);
- break;
- case OS.VK_HOME:
- hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0);
- break;
- case OS.VK_PRIOR:
- hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0);
- if (hNewItem == hItem) {
- OS.SendMessage (handle, OS.WM_VSCROLL, OS.SB_PAGEUP, 0);
- hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0);
- }
- break;
- case OS.VK_NEXT:
- RECT rect = new RECT (), clientRect = new RECT ();
- OS.GetClientRect (handle, clientRect);
- hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0);
- do {
- int hVisible = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hNewItem);
- if (hVisible == 0) break;
- rect.left = hVisible;
- OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect);
- if (rect.bottom > clientRect.bottom) break;
- if ((hNewItem = hVisible) == hItem) {
- OS.SendMessage (handle, OS.WM_VSCROLL, OS.SB_PAGEDOWN, 0);
- }
- } while (hNewItem != 0);
- break;
- case OS.VK_END:
- hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_LASTVISIBLE, 0);
- break;
- }
- if (hNewItem != 0) {
- OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, hNewItem);
- tvItem.hItem = hNewItem;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- boolean newSelected = (tvItem.state & OS.TVIS_SELECTED) != 0;
- if (!newSelected && drawCount == 0) {
- OS.UpdateWindow (handle);
- OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0);
- /*
- * This code is intentionally commented.
- */
-// OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0);
- }
- ignoreSelect = true;
- OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, hNewItem);
- ignoreSelect = false;
- if (oldSelected) {
- tvItem.state = OS.TVIS_SELECTED;
- tvItem.hItem = hItem;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- if (!newSelected) {
- tvItem.state = 0;
- tvItem.hItem = hNewItem;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- if (!newSelected && drawCount == 0) {
- RECT rect1 = new RECT (), rect2 = new RECT ();
- rect1.left = hItem; rect2.left = hNewItem;
- OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect1);
- OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect2);
- /*
- * This code is intentionally commented.
- */
-// OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0);
- OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0);
- if (OS.IsWinCE) {
- OS.InvalidateRect (handle, rect1, false);
- OS.InvalidateRect (handle, rect2, false);
- OS.UpdateWindow (handle);
- } else {
- int flags = OS.RDW_UPDATENOW | OS.RDW_INVALIDATE;
- OS.RedrawWindow (handle, rect1, 0, flags);
- OS.RedrawWindow (handle, rect2, 0, flags);
- }
- }
- return LRESULT.ZERO;
- }
- }
- }
- int code = callWindowProc (OS.WM_KEYDOWN, wParam, lParam);
- hAnchor = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- return new LRESULT (code);
- }
- }
- return result;
-}
-
-LRESULT WM_KILLFOCUS (int wParam, int lParam) {
- LRESULT result = super.WM_KILLFOCUS (wParam, lParam);
- if ((style & SWT.SINGLE) != 0) return result;
- /*
- * Feature in Windows. When multiple item have
- * the TVIS_SELECTED state, Windows redraws only
- * the focused item in the color used to show the
- * selection when the tree loses or gains focus.
- * The fix is to force Windows to redraw all the
- * visible items when focus is gained or lost.
- */
- OS.InvalidateRect (handle, null, false);
- return result;
-}
-
-LRESULT WM_LBUTTONDOWN (int wParam, int lParam) {
-
- /*
- * Feature in Windows. When a tree item is
- * reselected, Windows does not issue a WM_NOTIFY.
- * This is inconsistent with the list widget and
- * other widgets in Windows. The fix is to detect
- * the case when an item is reselected and issue
- * the notification. The first part of this work
- * around is to ensure that the user has selected
- * an item.
- */
- TVHITTESTINFO lpht = new TVHITTESTINFO ();
- lpht.x = (short) (lParam & 0xFFFF);
- lpht.y = (short) (lParam >> 16);
- OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht);
- if (lpht.hItem == 0 || (lpht.flags & OS.TVHT_ONITEM) == 0) {
- sendMouseEvent (SWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam);
- int code = callWindowProc (OS.WM_LBUTTONDOWN, wParam, lParam);
- if (OS.GetCapture () != handle) OS.SetCapture (handle);
- return new LRESULT (code);
- }
-
- /* Look for check/uncheck */
- if ((style & SWT.CHECK) != 0) {
- if ((lpht.flags & OS.TVHT_ONITEMSTATEICON) != 0) {
- TVITEM tvItem = new TVITEM ();
- tvItem.hItem = lpht.hItem;
- tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE;
- tvItem.stateMask = OS.TVIS_STATEIMAGEMASK;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- int state = tvItem.state >> 12;
- if ((state & 0x1) != 0) {
- state++;
- } else {
- --state;
- }
- tvItem.state = state << 12;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- Event event = new Event ();
- event.item = items [tvItem.lParam];
- event.detail = SWT.CHECK;
- postEvent (SWT.Selection, event);
- sendMouseEvent (SWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam);
- if (OS.GetCapture () != handle) OS.SetCapture (handle);
- return LRESULT.ZERO;
- }
- }
-
- /* Get the selected state of the item under the mouse */
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE;
- tvItem.stateMask = OS.TVIS_SELECTED;
- boolean hittestSelected = false;
- if ((style & SWT.MULTI) != 0) {
- tvItem.hItem = lpht.hItem;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- hittestSelected = (tvItem.state & OS.TVIS_SELECTED) != 0;
- }
-
- /* Get the selected state of the last selected item */
- int hOldItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- if ((style & SWT.MULTI) != 0) {
- tvItem.hItem = hOldItem;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
-
- /* Check for CONTROL or drag selection */
- if (hittestSelected || (wParam & OS.MK_CONTROL) != 0) {
- if (drawCount == 0) {
- OS.UpdateWindow (handle);
- OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0);
- /*
- * This code is intentionally commented.
- */
-// OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0);
- }
- } else {
- deselectAll ();
- }
- }
-
- /* Do the selection */
- sendMouseEvent (SWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam);
- dragStarted = false;
- ignoreDeselect = ignoreSelect = true;
- int code = callWindowProc (OS.WM_LBUTTONDOWN, wParam, lParam);
- ignoreDeselect = ignoreSelect = false;
- if (dragStarted && OS.GetCapture () != handle) OS.SetCapture (handle);
- int hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
-
- /*
- * Feature in Windows. When the old and new focused item
- * are the same, Windows does not check to make sure that
- * the item is actually selected, not just focused. The
- * fix is to force the item to draw selected by setting
- * the state mask. This is only necessary when the tree
- * is single select.
- */
- if ((style & SWT.SINGLE) != 0) {
- if (hOldItem == hNewItem) {
- tvItem.mask = OS.TVIF_STATE;
- tvItem.state = OS.TVIS_SELECTED;
- tvItem.stateMask = OS.TVIS_SELECTED;
- tvItem.hItem = hNewItem;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- }
-
- /* Reselect the last item that was unselected */
- if ((style & SWT.MULTI) != 0) {
-
- /* Check for CONTROL and reselect the last item */
- if (hittestSelected || (wParam & OS.MK_CONTROL) != 0) {
- if (hOldItem == hNewItem && hOldItem == lpht.hItem) {
- if ((wParam & OS.MK_CONTROL) != 0) {
- tvItem.state ^= OS.TVIS_SELECTED;
- if (dragStarted) tvItem.state = OS.TVIS_SELECTED;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- } else {
- if ((tvItem.state & OS.TVIS_SELECTED) != 0) {
- tvItem.state = OS.TVIS_SELECTED;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- if ((wParam & OS.MK_CONTROL) != 0 && !dragStarted) {
- if (hittestSelected) {
- tvItem.state = 0;
- tvItem.hItem = lpht.hItem;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- }
- }
- if (drawCount == 0) {
- RECT rect1 = new RECT (), rect2 = new RECT ();
- rect1.left = hOldItem; rect2.left = hNewItem;
- OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect1);
- OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect2);
- /*
- * This code is intentionally commented.
- */
-// OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0);
- OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0);
- if (OS.IsWinCE) {
- OS.InvalidateRect (handle, rect1, false);
- OS.InvalidateRect (handle, rect2, false);
- OS.UpdateWindow (handle);
- } else {
- int flags = OS.RDW_UPDATENOW | OS.RDW_INVALIDATE;
- OS.RedrawWindow (handle, rect1, 0, flags);
- OS.RedrawWindow (handle, rect2, 0, flags);
- }
- }
- }
-
- /* Check for SHIFT or normal select and delect/reselect items */
- if ((wParam & OS.MK_CONTROL) == 0) {
- if (!hittestSelected || !dragStarted) {
- tvItem.state = 0;
- int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC);
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc);
- for (int i=0; i<items.length; i++) {
- TreeItem item = items [i];
- if (item != null && item.handle != hNewItem) {
- tvItem.hItem = item.handle;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- }
- }
- tvItem.hItem = hNewItem;
- tvItem.state = OS.TVIS_SELECTED;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc);
- if ((wParam & OS.MK_SHIFT) != 0) {
- RECT rect1 = new RECT ();
- if (hAnchor == 0) hAnchor = hNewItem;
- rect1.left = hAnchor;
- if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect1) != 0) {
- RECT rect2 = rect2 = new RECT ();
- rect2.left = hNewItem;
- OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect2);
- int flags = rect1.top < rect2.top ? OS.TVGN_NEXTVISIBLE : OS.TVGN_PREVIOUSVISIBLE;
- tvItem.state = OS.TVIS_SELECTED;
- int hItem = tvItem.hItem = hAnchor;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- while (hItem != hNewItem) {
- tvItem.hItem = hItem;
- OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);
- hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, flags, hItem);
- }
- }
- }
- }
- }
- }
- if ((wParam & OS.MK_SHIFT) == 0) hAnchor = hNewItem;
-
- /* Issue notification */
- tvItem.hItem = hNewItem;
- tvItem.mask = OS.TVIF_STATE | OS.TVIF_PARAM;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- Event event = new Event ();
- if ((tvItem.state & OS.TVIS_SELECTED) != 0) {
- event.item = items [tvItem.lParam];
- }
- postEvent (SWT.Selection, event);
-
- /*
- * Feature in Windows. Inside WM_LBUTTONDOWN and WM_RBUTTONDOWN,
- * the widget starts a modal loop to determine if the user wants
- * to begin a drag/drop operation or marque select. Unfortunately,
- * this modal loop eats the corresponding mouse up. The fix is to
- * detect the cases when the modal loop has eaten the mouse up and
- * issue a fake mouse up.
- */
- if (dragStarted) {
- sendEvent (SWT.DragDetect);
- // widget could be disposed at this point
- } else {
- sendMouseEvent (SWT.MouseUp, 1, OS.WM_LBUTTONUP, wParam, lParam);
- }
- dragStarted = false;
- return new LRESULT (code);
-}
-
-LRESULT WM_RBUTTONDOWN (int wParam, int lParam) {
- /*
- * Feature in Windows. The receiver uses WM_RBUTTONDOWN
- * to initiate a drag/drop operation depending on how the
- * user moves the mouse. If the user clicks the right button,
- * without moving the mouse, the tree consumes the corresponding
- * WM_RBUTTONUP. The fix is to avoid calling the window proc for
- * the tree.
- */
- sendMouseEvent (SWT.MouseDown, 3, OS.WM_RBUTTONDOWN, wParam, lParam);
- /*
- * This code is intentionally commented.
- */
-// if (OS.GetCapture () != handle) OS.SetCapture (handle);
- setFocus ();
-
- /*
- * Feature in Windows. When the user selects a tree item
- * with the right mouse button, the item remains selected
- * only as long as the user does not release or move the
- * mouse. As soon as this happens, the selection snaps
- * back to the previous selection. This behavior can be
- * observed in the Explorer but is not instantly apparent
- * because the Explorer explicity sets the selection when
- * the user chooses a menu item. If the user cancels the
- * menu, the selection snaps back. The fix is to avoid
- * calling the window proc and do the selection ourselves.
- * This behavior is consistent with the table.
- */
- TVHITTESTINFO lpht = new TVHITTESTINFO ();
- lpht.x = (short) (lParam & 0xFFFF);
- lpht.y = (short) (lParam >> 16);
- OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht);
- if (lpht.hItem != 0 && (lpht.flags & (OS.TVHT_ONITEMICON | OS.TVHT_ONITEMLABEL)) != 0) {
- if ((wParam & (OS.MK_CONTROL | OS.MK_SHIFT)) == 0) {
- TVITEM tvItem = new TVITEM ();
- tvItem.mask = OS.TVIF_STATE | OS.TVIF_PARAM;
- tvItem.stateMask = OS.TVIS_SELECTED;
- tvItem.hItem = lpht.hItem;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- if ((tvItem.state & OS.TVIS_SELECTED) == 0) {
- ignoreSelect = true;
- OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, 0);
- ignoreSelect = false;
- OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, lpht.hItem);
- }
- }
- }
- return LRESULT.ZERO;
-}
-
-LRESULT WM_SETFOCUS (int wParam, int lParam) {
- LRESULT result = super.WM_SETFOCUS (wParam, lParam);
- if ((style & SWT.SINGLE) != 0) return result;
- /*
- * Feature in Windows. When multiple item have
- * the TVIS_SELECTED state, Windows redraws only
- * the focused item in the color used to show the
- * selection when the tree loses or gains focus.
- * The fix is to force Windows to redraw all the
- * visible items when focus is gained or lost.
- */
- OS.InvalidateRect (handle, null, false);
- return result;
-}
-
-LRESULT WM_SYSCOLORCHANGE (int wParam, int lParam) {
- LRESULT result = super.WM_SYSCOLORCHANGE (wParam, lParam);
- if (result != null) return result;
- if ((style & SWT.CHECK) != 0) setCheckboxImageList ();
- return result;
-}
-
-LRESULT wmNotifyChild (int wParam, int lParam) {
- NMHDR hdr = new NMHDR ();
- OS.MoveMemory (hdr, lParam, NMHDR.sizeof);
- int code = hdr.code;
- switch (code) {
- case OS.NM_DBLCLK:
- int pos = OS.GetMessagePos ();
- TVHITTESTINFO lpht = new TVHITTESTINFO ();
- POINT pt = new POINT ();
- pt.x = (short) (pos & 0xFFFF);
- pt.y = (short) (pos >> 16);
- OS.ScreenToClient (handle, pt);
- lpht.x = pt.x; lpht.y = pt.y;
- OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht);
- if ((lpht.flags & OS.TVHT_ONITEM) == 0) break;
- // fall through
- case OS.NM_RETURN:
- case OS.TVN_SELCHANGEDA:
- case OS.TVN_SELCHANGEDW:
- if (!ignoreSelect) {
- TVITEM tvItem = null;
- if (code == OS.TVN_SELCHANGED) {
- tvItem = new TVITEM ();
- int offset = NMHDR.sizeof + 4 + TVITEM.sizeof;
- OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof);
- } else {
- int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);
- if (hItem == 0) {
- tvItem = new TVITEM ();
- tvItem.hItem = hItem;
- tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE;
- OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);
- }
- }
- TreeItem item = null;
- if (tvItem != null) {
- /*
- * This code is intentionally commented.
- */
-// hAnchor = tvItem.hItem;
- if ((tvItem.state & OS.TVIS_SELECTED) != 0) {
- item = items [tvItem.lParam];
- }
- }
- Event event = new Event ();
- event.item = item;
- if (code == OS.TVN_SELCHANGED) {
- postEvent (SWT.Selection, event);
- } else {
- postEvent (SWT.DefaultSelection, event);
- }
- }
- if (code == OS.NM_DBLCLK && hooks (SWT.DefaultSelection)) {
- return LRESULT.ONE;
- }
- break;
- case OS.TVN_SELCHANGINGA:
- case OS.TVN_SELCHANGINGW:
- if (!ignoreSelect && !ignoreDeselect) {
- hAnchor = 0;
- if ((style & SWT.MULTI) != 0) deselectAll ();
- }
- break;
- case OS.TVN_ITEMEXPANDINGA:
- case OS.TVN_ITEMEXPANDINGW:
- if (!ignoreExpand) {
- TVITEM tvItem = new TVITEM ();
- int offset = NMHDR.sizeof + 4 + TVITEM.sizeof;
- OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof);
- int [] action = new int [1];
- OS.MoveMemory (action, lParam + NMHDR.sizeof, 4);
- Event event = new Event ();
- event.item = items [tvItem.lParam];
- /*
- * It is possible (but unlikely), that application
- * code could have disposed the widget in the expand
- * or collapse event. If this happens, end the
- * processing of the Windows message by returning
- * zero as the result of the window proc.
- */
- if (action [0] == OS.TVE_EXPAND) {
- sendEvent (SWT.Expand, event);
- if (isDisposed ()) return LRESULT.ZERO;
- }
- if (action [0] == OS.TVE_COLLAPSE) {
- sendEvent (SWT.Collapse, event);
- if (isDisposed ()) return LRESULT.ZERO;
- }
- }
- break;
- case OS.TVN_BEGINDRAGA:
- case OS.TVN_BEGINDRAGW:
- case OS.TVN_BEGINRDRAGA:
- case OS.TVN_BEGINRDRAGW:
- TVITEM tvItem = new TVITEM ();
- int offset = NMHDR.sizeof + 4 + TVITEM.sizeof;
- OS.MoveMemory (tvItem, lParam + offset, TVITEM.sizeof);
- if (tvItem.hItem != 0 && (tvItem.state & OS.TVIS_SELECTED) == 0) {
- ignoreSelect = ignoreDeselect = true;
- OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, tvItem.hItem);
- ignoreSelect = ignoreDeselect = false;
- }
- dragStarted = true;
- break;
- }
- return super.wmNotifyChild (wParam, lParam);
-}
-
-LRESULT wmScroll (int msg, int wParam, int lParam) {
- int code = callWindowProc (msg, wParam, lParam);
- if (code == 0) return LRESULT.ZERO;
- return new LRESULT (code);
-}
-
-}
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