| /******************************************************************************* |
| * Copyright (c) 2000, 2017 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.win32.*; |
| |
| /** |
| * Instances of this class represent a column in a tree widget. |
| * <p><dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>LEFT, RIGHT, CENTER</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd> Move, Resize, Selection</dd> |
| * </dl> |
| * </p><p> |
| * Note: Only one of the styles LEFT, RIGHT and CENTER may be specified. |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#tree">Tree, TreeItem, TreeColumn snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * |
| * @since 3.1 |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class TreeColumn extends Item { |
| Tree parent; |
| boolean resizable, moveable; |
| String toolTipText; |
| int id; |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>Tree</code>) and a style value |
| * describing its behavior and appearance. The item is added |
| * to the end of the items maintained by its parent. |
| * <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 |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </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#LEFT |
| * @see SWT#RIGHT |
| * @see SWT#CENTER |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public TreeColumn (Tree parent, int style) { |
| super (parent, checkStyle (style)); |
| resizable = true; |
| this.parent = parent; |
| parent.createItem (this, parent.getColumnCount ()); |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>Tree</code>), a style value |
| * describing its behavior and appearance, and the index |
| * at which to place it in the items maintained by its parent. |
| * <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 |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * <p> |
| * Note that due to a restriction on some platforms, the first column |
| * is always left aligned. |
| * </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 |
| * @param index the zero-relative index to store the receiver in its parent |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</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#LEFT |
| * @see SWT#RIGHT |
| * @see SWT#CENTER |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public TreeColumn (Tree parent, int style, int index) { |
| super (parent, checkStyle (style)); |
| resizable = true; |
| this.parent = parent; |
| parent.createItem (this, index); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control is moved or resized, by sending |
| * it one of the messages defined in the <code>ControlListener</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 ControlListener |
| * @see #removeControlListener |
| */ |
| public void addControlListener(ControlListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Resize,typedListener); |
| addListener (SWT.Move,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control is selected by the user, by sending |
| * it one of the messages defined in the <code>SelectionListener</code> |
| * interface. |
| * <p> |
| * <code>widgetSelected</code> is called when the column header is selected. |
| * <code>widgetDefaultSelected</code> is not called. |
| * </p> |
| * |
| * @param listener the listener which should be notified when the control is selected by the user |
| * |
| * @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); |
| } |
| |
| static int checkStyle (int style) { |
| return checkBits (style, SWT.LEFT, SWT.CENTER, SWT.RIGHT, 0, 0, 0); |
| } |
| |
| @Override |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| @Override |
| void destroyWidget () { |
| parent.destroyItem (this); |
| releaseHandle (); |
| } |
| |
| /** |
| * Returns a value which describes the position of the |
| * text or image in the receiver. The value will be one of |
| * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code>. |
| * |
| * @return the alignment |
| * |
| * @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 getAlignment () { |
| checkWidget (); |
| if ((style & SWT.LEFT) != 0) return SWT.LEFT; |
| if ((style & SWT.CENTER) != 0) return SWT.CENTER; |
| if ((style & SWT.RIGHT) != 0) return SWT.RIGHT; |
| return SWT.LEFT; |
| } |
| |
| /** |
| * Gets the moveable attribute. A column that is |
| * not moveable cannot be reordered by the user |
| * by dragging the header but may be reordered |
| * by the programmer. |
| * |
| * @return the moveable attribute |
| * |
| * @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#getColumnOrder() |
| * @see Tree#setColumnOrder(int[]) |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.2 |
| */ |
| public boolean getMoveable () { |
| checkWidget (); |
| return moveable; |
| } |
| |
| @Override |
| String getNameText () { |
| return getText (); |
| } |
| |
| /** |
| * Returns the receiver's parent, which must be a <code>Tree</code>. |
| * |
| * @return the receiver's parent |
| * |
| * @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 Tree getParent () { |
| checkWidget (); |
| return parent; |
| } |
| |
| /** |
| * Gets the resizable attribute. A column that is |
| * not resizable cannot be dragged by the user but |
| * may be resized by the programmer. |
| * |
| * @return the resizable attribute |
| * |
| * @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 boolean getResizable () { |
| checkWidget (); |
| return resizable; |
| } |
| |
| /** |
| * Returns the receiver's tool tip text, or null if it has |
| * not been set. |
| * |
| * @return the receiver's tool tip text |
| * |
| * @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> |
| * |
| * @since 3.2 |
| */ |
| public String getToolTipText () { |
| checkWidget(); |
| return toolTipText; |
| } |
| |
| /** |
| * Gets the width of the receiver. |
| * |
| * @return the width |
| * |
| * @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 getWidth () { |
| checkWidget (); |
| return DPIUtil.autoScaleDown(getWidthInPixels()); |
| } |
| |
| int getWidthInPixels () { |
| int index = parent.indexOf (this); |
| if (index == -1) return 0; |
| long /*int*/ hwndHeader = parent.hwndHeader; |
| if (hwndHeader == 0) return 0; |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_WIDTH; |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); |
| return hdItem.cxy; |
| } |
| |
| /** |
| * Causes the receiver to be resized to its preferred size. |
| * For a composite, this involves computing the preferred size |
| * from its layout, if there is one. |
| * |
| * @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 pack () { |
| checkWidget (); |
| int index = parent.indexOf (this); |
| if (index == -1) return; |
| int columnWidth = 0; |
| long /*int*/ hwnd = parent.handle, hwndHeader = parent.hwndHeader; |
| RECT headerRect = new RECT (); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); |
| long /*int*/ hDC = OS.GetDC (hwnd); |
| long /*int*/ oldFont = 0, newFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); |
| if (newFont != 0) oldFont = OS.SelectObject (hDC, newFont); |
| TVITEM tvItem = new TVITEM (); |
| tvItem.mask = OS.TVIF_HANDLE | OS.TVIF_PARAM | OS.TVIF_STATE; |
| tvItem.hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0); |
| while (tvItem.hItem != 0) { |
| OS.SendMessage (hwnd, OS.TVM_GETITEM, 0, tvItem); |
| TreeItem item = tvItem.lParam != -1 ? parent.items [(int)/*64*/tvItem.lParam] : null; |
| if (item != null) { |
| int itemRight = 0; |
| if (parent.hooks (SWT.MeasureItem)) { |
| int detail = (tvItem.state & OS.TVIS_SELECTED) != 0 ? SWT.SELECTED : 0; |
| Event event = parent.sendMeasureItemEvent (item, index, hDC, detail); |
| if (isDisposed () || parent.isDisposed ()) break; |
| Rectangle bounds = event.getBoundsInPixels(); |
| itemRight = bounds.x + bounds.width; |
| } else { |
| long /*int*/ hFont = item.fontHandle (index); |
| if (hFont != -1) hFont = OS.SelectObject (hDC, hFont); |
| RECT itemRect = item.getBounds (index, true, true, false, false, false, hDC); |
| if (hFont != -1) OS.SelectObject (hDC, hFont); |
| itemRight = itemRect.right; |
| } |
| columnWidth = Math.max (columnWidth, itemRight - headerRect.left); |
| } |
| tvItem.hItem = OS.SendMessage (hwnd, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, tvItem.hItem); |
| } |
| RECT rect = new RECT (); |
| int flags = OS.DT_CALCRECT | OS.DT_NOPREFIX; |
| TCHAR buffer = new TCHAR (parent.getCodePage (), text, false); |
| OS.DrawText (hDC, buffer, buffer.length (), rect, flags); |
| int headerWidth = rect.right - rect.left + Tree.HEADER_MARGIN; |
| if (OS.IsAppThemed ()) headerWidth += Tree.HEADER_EXTRA; |
| if (image != null || parent.sortColumn == this) { |
| Image headerImage = null; |
| if (parent.sortColumn == this && parent.sortDirection != SWT.NONE) { |
| headerWidth += Tree.SORT_WIDTH; |
| } else { |
| headerImage = image; |
| } |
| if (headerImage != null) { |
| Rectangle bounds = headerImage.getBoundsInPixels (); |
| headerWidth += bounds.width; |
| } |
| int margin = 0; |
| if (hwndHeader != 0) { |
| margin = (int)/*64*/OS.SendMessage (hwndHeader, OS.HDM_GETBITMAPMARGIN, 0, 0); |
| } else { |
| margin = OS.GetSystemMetrics (OS.SM_CXEDGE) * 3; |
| } |
| headerWidth += margin * 2; |
| } |
| if (newFont != 0) OS.SelectObject (hDC, oldFont); |
| OS.ReleaseDC (hwnd, hDC); |
| int gridWidth = parent.linesVisible ? Tree.GRID_WIDTH : 0; |
| setWidthInPixels (Math.max (headerWidth, columnWidth + gridWidth)); |
| } |
| |
| @Override |
| void releaseHandle () { |
| super.releaseHandle (); |
| parent = null; |
| } |
| |
| @Override |
| void releaseParent () { |
| super.releaseParent (); |
| if (parent.sortColumn == this) { |
| parent.sortColumn = null; |
| } |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is moved or resized. |
| * |
| * @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 ControlListener |
| * @see #addControlListener |
| */ |
| public void removeControlListener (ControlListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Move, listener); |
| eventTable.unhook (SWT.Resize, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is selected by the user. |
| * |
| * @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); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Selection, listener); |
| eventTable.unhook (SWT.DefaultSelection,listener); |
| } |
| |
| /** |
| * Controls how text and images will be displayed in the receiver. |
| * The argument should be one of <code>LEFT</code>, <code>RIGHT</code> |
| * or <code>CENTER</code>. |
| * <p> |
| * Note that due to a restriction on some platforms, the first column |
| * is always left aligned. |
| * </p> |
| * @param alignment the new alignment |
| * |
| * @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 setAlignment (int alignment) { |
| checkWidget (); |
| if ((alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER)) == 0) return; |
| int index = parent.indexOf (this); |
| if (index == -1 || index == 0) return; |
| style &= ~(SWT.LEFT | SWT.RIGHT | SWT.CENTER); |
| style |= alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER); |
| long /*int*/ hwndHeader = parent.hwndHeader; |
| if (hwndHeader == 0) return; |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_FORMAT; |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); |
| hdItem.fmt &= ~OS.HDF_JUSTIFYMASK; |
| if ((style & SWT.LEFT) == SWT.LEFT) hdItem.fmt |= OS.HDF_LEFT; |
| if ((style & SWT.CENTER) == SWT.CENTER) hdItem.fmt |= OS.HDF_CENTER; |
| if ((style & SWT.RIGHT) == SWT.RIGHT) hdItem.fmt |= OS.HDF_RIGHT; |
| OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); |
| if (index != 0) { |
| long /*int*/ hwnd = parent.handle; |
| parent.forceResize (); |
| RECT rect = new RECT (), headerRect = new RECT (); |
| OS.GetClientRect (hwnd, rect); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); |
| rect.left = headerRect.left; |
| rect.right = headerRect.right; |
| OS.InvalidateRect (hwnd, rect, true); |
| } |
| } |
| |
| @Override |
| public void setImage (Image image) { |
| checkWidget(); |
| if (image != null && image.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| super.setImage (image); |
| if (parent.sortColumn != this || parent.sortDirection != SWT.NONE) { |
| setImage (image, false, false); |
| } |
| } |
| |
| void setImage (Image image, boolean sort, boolean right) { |
| int index = parent.indexOf (this); |
| if (index == -1) return; |
| long /*int*/ hwndHeader = parent.hwndHeader; |
| if (hwndHeader == 0) return; |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_FORMAT | OS.HDI_IMAGE | OS.HDI_BITMAP; |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); |
| hdItem.fmt &= ~OS.HDF_BITMAP_ON_RIGHT; |
| if (image != null) { |
| if (sort) { |
| hdItem.mask &= ~OS.HDI_IMAGE; |
| hdItem.fmt &= ~OS.HDF_IMAGE; |
| hdItem.fmt |= OS.HDF_BITMAP; |
| hdItem.hbm = image.handle; |
| } else { |
| hdItem.mask &= ~OS.HDI_BITMAP; |
| hdItem.fmt &= ~OS.HDF_BITMAP; |
| hdItem.fmt |= OS.HDF_IMAGE; |
| hdItem.iImage = parent.imageIndexHeader (image); |
| } |
| if (right) hdItem.fmt |= OS.HDF_BITMAP_ON_RIGHT; |
| } else { |
| hdItem.mask &= ~(OS.HDI_IMAGE | OS.HDI_BITMAP); |
| hdItem.fmt &= ~(OS.HDF_IMAGE | OS.HDF_BITMAP); |
| } |
| OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); |
| } |
| |
| /** |
| * Sets the moveable attribute. A column that is |
| * moveable can be reordered by the user by dragging |
| * the header. A column that is not moveable cannot be |
| * dragged by the user but may be reordered |
| * by the programmer. |
| * |
| * @param moveable the moveable attribute |
| * |
| * @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#setColumnOrder(int[]) |
| * @see Tree#getColumnOrder() |
| * @see TreeColumn#getMoveable() |
| * @see SWT#Move |
| * |
| * @since 3.2 |
| */ |
| public void setMoveable (boolean moveable) { |
| checkWidget (); |
| this.moveable = moveable; |
| } |
| |
| /** |
| * Sets the resizable attribute. A column that is |
| * not resizable cannot be dragged by the user but |
| * may be resized by the programmer. |
| * |
| * @param resizable the resize attribute |
| * |
| * @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 setResizable (boolean resizable) { |
| checkWidget (); |
| this.resizable = resizable; |
| } |
| |
| void setSortDirection (int direction) { |
| long /*int*/ hwndHeader = parent.hwndHeader; |
| if (hwndHeader != 0) { |
| int index = parent.indexOf (this); |
| if (index == -1) return; |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_FORMAT | OS.HDI_IMAGE; |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEM, index, hdItem); |
| switch (direction) { |
| case SWT.UP: |
| hdItem.fmt &= ~(OS.HDF_IMAGE | OS.HDF_SORTDOWN); |
| hdItem.fmt |= OS.HDF_SORTUP; |
| if (image == null) hdItem.mask &= ~OS.HDI_IMAGE; |
| break; |
| case SWT.DOWN: |
| hdItem.fmt &= ~(OS.HDF_IMAGE | OS.HDF_SORTUP); |
| hdItem.fmt |= OS.HDF_SORTDOWN; |
| if (image == null) hdItem.mask &= ~OS.HDI_IMAGE; |
| break; |
| case SWT.NONE: |
| hdItem.fmt &= ~(OS.HDF_SORTUP | OS.HDF_SORTDOWN); |
| if (image != null) { |
| hdItem.fmt |= OS.HDF_IMAGE; |
| hdItem.iImage = parent.imageIndexHeader (image); |
| } else { |
| hdItem.fmt &= ~OS.HDF_IMAGE; |
| hdItem.mask &= ~OS.HDI_IMAGE; |
| } |
| break; |
| } |
| OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); |
| if (OS.IsAppThemed ()) { |
| long /*int*/ hwnd = parent.handle; |
| parent.forceResize (); |
| RECT rect = new RECT (), headerRect = new RECT (); |
| OS.GetClientRect (hwnd, rect); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); |
| rect.left = headerRect.left; |
| rect.right = headerRect.right; |
| OS.InvalidateRect (hwnd, rect, true); |
| } |
| } |
| } |
| |
| @Override |
| public void setText (String string) { |
| checkWidget (); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (string.equals (text)) return; |
| int index = parent.indexOf (this); |
| if (index == -1) return; |
| super.setText (string); |
| /* |
| * Bug in Windows. When a column header contains a |
| * mnemonic character, Windows does not measure the |
| * text properly. This causes '...' to always appear |
| * at the end of the text. The fix is to remove |
| * mnemonic characters. |
| */ |
| long /*int*/ hHeap = OS.GetProcessHeap (); |
| TCHAR buffer = new TCHAR (parent.getCodePage (), fixMnemonic (string), true); |
| int byteCount = buffer.length () * TCHAR.sizeof; |
| long /*int*/ pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); |
| OS.MoveMemory (pszText, buffer, byteCount); |
| long /*int*/ hwndHeader = parent.hwndHeader; |
| if (hwndHeader == 0) return; |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_TEXT; |
| hdItem.pszText = pszText; |
| long /*int*/ result = OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); |
| if (pszText != 0) OS.HeapFree (hHeap, 0, pszText); |
| if (result == 0) error (SWT.ERROR_CANNOT_SET_TEXT); |
| } |
| |
| /** |
| * Sets the receiver's tool tip text to the argument, which |
| * may be null indicating that the default tool tip for the |
| * control will be shown. For a control that has a default |
| * tool tip, such as the Tree control on Windows, setting |
| * the tool tip text to an empty string replaces the default, |
| * causing no tool tip text to be shown. |
| * <p> |
| * The mnemonic indicator (character '&') is not displayed in a tool tip. |
| * To display a single '&' in the tool tip, the character '&' can be |
| * escaped by doubling it in the string. |
| * </p> |
| * <p> |
| * NOTE: This operation is a hint and behavior is platform specific, on Windows |
| * for CJK-style mnemonics of the form " (&C)" at the end of the tooltip text |
| * are not shown in tooltip. |
| * </p> |
| * |
| * @param string the new tool tip text (or null) |
| * |
| * @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> |
| * |
| * @since 3.2 |
| */ |
| public void setToolTipText (String string) { |
| checkWidget(); |
| toolTipText = string; |
| long /*int*/ hwndHeaderToolTip = parent.headerToolTipHandle; |
| if (hwndHeaderToolTip == 0) { |
| parent.createHeaderToolTips (); |
| parent.updateHeaderToolTips (); |
| } |
| } |
| |
| /** |
| * Sets the width of the receiver. |
| * |
| * @param width the new width |
| * |
| * @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 setWidth (int width) { |
| checkWidget (); |
| setWidthInPixels(DPIUtil.autoScaleUp(width)); |
| } |
| |
| void setWidthInPixels (int width) { |
| if (width < 0) return; |
| int index = parent.indexOf (this); |
| if (index == -1) return; |
| long /*int*/ hwndHeader = parent.hwndHeader; |
| if (hwndHeader == 0) return; |
| HDITEM hdItem = new HDITEM (); |
| hdItem.mask = OS.HDI_WIDTH; |
| hdItem.cxy = width; |
| OS.SendMessage (hwndHeader, OS.HDM_SETITEM, index, hdItem); |
| RECT headerRect = new RECT (); |
| OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, headerRect); |
| parent.forceResize (); |
| long /*int*/ hwnd = parent.handle; |
| RECT rect = new RECT (); |
| OS.GetClientRect (hwnd, rect); |
| rect.left = headerRect.left; |
| OS.InvalidateRect (hwnd, rect, true); |
| parent.setScrollWidth (); |
| } |
| |
| void updateToolTip (int index) { |
| long /*int*/ hwndHeaderToolTip = parent.headerToolTipHandle; |
| if (hwndHeaderToolTip != 0) { |
| long /*int*/ hwndHeader = parent.hwndHeader; |
| RECT rect = new RECT (); |
| if (OS.SendMessage (hwndHeader, OS.HDM_GETITEMRECT, index, rect) != 0) { |
| TOOLINFO lpti = new TOOLINFO (); |
| lpti.cbSize = TOOLINFO.sizeof; |
| lpti.hwnd = hwndHeader; |
| lpti.uId = id; |
| lpti.left = rect.left; |
| lpti.top = rect.top; |
| lpti.right = rect.right; |
| lpti.bottom = rect.bottom; |
| OS.SendMessage (hwndHeaderToolTip, OS.TTM_NEWTOOLRECT, 0, lpti); |
| } |
| } |
| } |
| } |