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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/emulated/treetable/org/eclipse/swt/widgets/TableColumn.java')
-rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/emulated/treetable/org/eclipse/swt/widgets/TableColumn.java | 762 |
1 files changed, 0 insertions, 762 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/emulated/treetable/org/eclipse/swt/widgets/TableColumn.java b/bundles/org.eclipse.swt/Eclipse SWT/emulated/treetable/org/eclipse/swt/widgets/TableColumn.java deleted file mode 100644 index 7ef48a0fdd..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/emulated/treetable/org/eclipse/swt/widgets/TableColumn.java +++ /dev/null @@ -1,762 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * 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.*; - -/** - * Instances of this class represent a column in a table 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/#table">Table, TableItem, TableColumn snippets</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - * @noextend This class is not intended to be subclassed by clients. - */ -public class TableColumn extends Item { - Table parent; - String displayText = ""; - int width; - boolean moveable, resizable = true; - int sort = SWT.NONE; - String toolTipText; - -/** - * Constructs a new instance of this class given its parent - * (which must be a <code>Table</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 TableColumn (Table parent, int style) { - this (parent, style, checkNull (parent).columns.length); -} -/** - * Constructs a new instance of this class given its parent - * (which must be a <code>Table</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 TableColumn (Table parent, int style, int index) { - super (parent, checkStyle (style), index); - if (!(0 <= index && index <= parent.columns.length)) error (SWT.ERROR_INVALID_RANGE); - 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 Table checkNull (Table table) { - if (table == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); - return table; -} -static int checkStyle (int style) { - return checkBits (style, SWT.LEFT, SWT.CENTER, SWT.RIGHT, 0, 0, 0); -} -protected void checkSubclass () { - if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); -} -void computeDisplayText (GC gc) { - int availableWidth = width - 2 * parent.getHeaderPadding (); - if (image != null) { - availableWidth -= image.getBounds ().width; - availableWidth -= Table.MARGIN_IMAGE; - } - if (sort != SWT.NONE) { - availableWidth -= parent.arrowBounds.width; - availableWidth -= Table.MARGIN_IMAGE; - } - String text = this.text; - int textWidth = gc.textExtent (text, SWT.DRAW_MNEMONIC).x; - if (textWidth <= availableWidth) { - displayText = text; - return; - } - - /* Ellipsis will be needed, so subtract their width from the available text width */ - int ellipsisWidth = gc.stringExtent (Table.ELLIPSIS).x; - availableWidth -= ellipsisWidth; - if (availableWidth <= 0) { - displayText = Table.ELLIPSIS; - return; - } - - /* Make initial guess. */ - int index = Math.min (availableWidth / gc.getFontMetrics ().getAverageCharWidth (), text.length ()); - textWidth = gc.textExtent (text.substring (0, index), SWT.DRAW_MNEMONIC).x; - - /* Initial guess is correct. */ - if (availableWidth == textWidth) { - displayText = text.substring (0, index) + Table.ELLIPSIS; - return; - } - - /* Initial guess is too high, so reduce until fit is found. */ - if (availableWidth < textWidth) { - do { - index--; - if (index < 0) { - displayText = Table.ELLIPSIS; - return; - } - text = text.substring (0, index); - textWidth = gc.textExtent (text, SWT.DRAW_MNEMONIC).x; - } while (availableWidth < textWidth); - displayText = text + Table.ELLIPSIS; - return; - } - - /* Initial guess is too low, so increase until overrun is found. */ - while (textWidth < availableWidth) { - index++; - textWidth = gc.textExtent (text.substring (0, index), SWT.DRAW_MNEMONIC).x; - } - displayText = text.substring (0, index - 1) + Table.ELLIPSIS; -} -public void dispose () { - if (isDisposed ()) return; - Rectangle parentBounds = parent.clientArea; - int x = getX (); - int index = getIndex (); - int orderIndex = getOrderIndex (); - int nextColumnAlignment = parent.columns.length > 1 ? parent.columns [1].getAlignment () : SWT.LEFT; - Table parent = this.parent; - dispose (true); - - int width = parentBounds.width - x; - parent.redraw (x, 0, width, parentBounds.height, false); - /* - * If column 0 was disposed then the new column 0 must be redrawn if it appears to the - * left of the disposed column in the column order AND one the following are true: - * - the parent has style CHECK, since these will now appear in the new column 0 - * - the new column 0 had non-left alignment before the dispose, since the parent will have - * changed this to LEFT in the call to dispose(true) - */ - if (index == 0 && ((parent.style & SWT.CHECK) != 0 || nextColumnAlignment != SWT.LEFT)) { - if (parent.columns.length > 0) { - TableColumn newColumn0 = parent.columns [0]; - if (newColumn0.getOrderIndex () < orderIndex) { - int newColumn0x = newColumn0.getX (); - parent.redraw (newColumn0x, 0, newColumn0.width, parentBounds.height, false); - /* if the alignment changed then the header text must be repainted with its new alignment */ - if (nextColumnAlignment != SWT.LEFT && parent.getHeaderVisible () && parent.drawCount <= 0) { - parent.header.redraw (newColumn0x, 0, newColumn0.width, parent.header.getClientArea ().height, false); - } - } - } - } - if (parent.drawCount <= 0 && parent.getHeaderVisible ()) { - parent.header.redraw (x, 0, width, parent.getHeaderHeight (), false); - } -} -void dispose (boolean notifyParent) { - super.dispose (); /* super is intentional here */ - if (notifyParent) parent.destroyItem (this); - parent = null; -} -/** - * 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.CENTER) != 0) return SWT.CENTER; - if ((style & SWT.RIGHT) != 0) return SWT.RIGHT; - return SWT.LEFT; -} -/* - * Returns the width of the header's content - * (image + text + sort arrow + internal margins) - */ -int getContentWidth (GC gc, boolean useDisplayText) { - int contentWidth = 0; - String text = useDisplayText ? displayText : this.text; - if (text.length () > 0) { - contentWidth += gc.textExtent (text, SWT.DRAW_MNEMONIC).x; - } - if (image != null) { - contentWidth += image.getBounds ().width; - if (text.length () > 0) contentWidth += Table.MARGIN_IMAGE; - } - if (sort != SWT.NONE) { - contentWidth += parent.arrowBounds.width; - if (text.length () > 0 || image != null) { - contentWidth += Table.MARGIN_IMAGE; - } - } - return contentWidth; -} -int getIndex () { - TableColumn[] columns = parent.columns; - for (int i = 0; i < columns.length; i++) { - if (columns [i] == this) return i; - } - return -1; -} -/** - * 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 Table#getColumnOrder() - * @see Table#setColumnOrder(int[]) - * @see TableColumn#setMoveable(boolean) - * @see SWT#Move - * - * @since 3.1 - */ -public boolean getMoveable () { - checkWidget (); - return moveable; -} -int getOrderIndex () { - TableColumn[] orderedColumns = parent.orderedColumns; - if (orderedColumns == null) return getIndex (); - for (int i = 0; i < orderedColumns.length; i++) { - if (orderedColumns [i] == this) return i; - } - return -1; -} -/** - * Returns the receiver's parent, which must be a <code>Table</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 Table getParent () { - checkWidget (); - return parent; -} -int getPreferredWidth () { - if (!parent.getHeaderVisible ()) return 0; - GC gc = new GC (parent); - int result = getContentWidth (gc, false); - gc.dispose (); - return result + 2 * parent.getHeaderPadding (); -} -/** - * 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 width; -} -int getX () { - TableColumn[] orderedColumns = parent.getOrderedColumns (); - int index = getOrderIndex (); - int result = -parent.horizontalOffset; - for (int i = 0; i < index; i++) { - result += orderedColumns [i].width; - } - return result; -} -/** - * 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 (); - TableItem[] items = parent.items; - int index = getIndex (); - int newWidth = getPreferredWidth (); - for (int i = 0; i < parent.itemsCount; i++) { - int width = items [i].getPreferredWidth (index); - /* ensure that receiver and parent were not disposed in a callback */ - if (parent.isDisposed () || isDisposed ()) return; - if (!items [i].isDisposed ()) { - newWidth = Math.max (newWidth, width); - } - } - if (newWidth != width) parent.updateColumnWidth (this, newWidth); -} -void paint (GC gc) { - int padding = parent.getHeaderPadding (); - - int x = getX (); - int startX = x + padding; - if ((style & SWT.LEFT) == 0) { - int contentWidth = getContentWidth (gc, true); - if ((style & SWT.RIGHT) != 0) { - startX = Math.max (startX, x + width - padding - contentWidth); - } else { /* SWT.CENTER */ - startX = Math.max (startX, x + (width - contentWidth) / 2); - } - } - int headerHeight = parent.getHeaderHeight (); - - /* restrict the clipping region to the header cell */ - gc.setClipping ( - x + padding, - padding, - width - 2 * padding, - headerHeight - 2 * padding); - - if (image != null) { - Rectangle imageBounds = image.getBounds (); - int drawHeight = Math.min (imageBounds.height, headerHeight - 2 * padding); - gc.drawImage ( - image, - 0, 0, - imageBounds.width, imageBounds.height, - startX, (headerHeight - drawHeight) / 2, - imageBounds.width, drawHeight); - startX += imageBounds.width + Table.MARGIN_IMAGE; - } - if (displayText.length () > 0) { - gc.setForeground (display.getSystemColor (SWT.COLOR_BLACK)); - int fontHeight = parent.fontHeight; - gc.drawText (displayText, startX, (headerHeight - fontHeight) / 2, SWT.DRAW_MNEMONIC); - startX += gc.textExtent (displayText, SWT.DRAW_MNEMONIC).x + Table.MARGIN_IMAGE; - } - if (sort != SWT.NONE) { - Image image = sort == SWT.DOWN ? parent.getArrowDownImage () : parent.getArrowUpImage (); - int y = (headerHeight - parent.arrowBounds.height) / 2; - gc.drawImage (image, startX, y); - } -} -/** - * 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); - removeListener (SWT.Selection, listener); - removeListener (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 = getIndex (); - if (index == -1 || index == 0) return; /* column 0 can only have left-alignment */ - alignment = checkBits (alignment, SWT.LEFT, SWT.CENTER, SWT.RIGHT, 0, 0, 0); - if ((style & alignment) != 0) return; /* same value */ - style &= ~(SWT.LEFT | SWT.CENTER | SWT.RIGHT); - style |= alignment; - int x = getX (); - parent.redraw (x, 0, width, parent.clientArea.height, false); - if (parent.drawCount <= 0 && parent.getHeaderVisible ()) { - /* don't damage the header's drawn borders */ - parent.header.redraw (x, 1, width - 2, parent.getHeaderHeight () - 3, false); - } -} -public void setImage (Image value) { - checkWidget (); - if (value == image) return; - if (value != null && value.equals (image)) return; /* same value */ - super.setImage (value); - - /* An image width change may affect the space available for the column's displayText. */ - GC gc = new GC (parent); - computeDisplayText (gc); - gc.dispose (); - - /* - * If this is the first image being put into the header then the header - * height may be adjusted, in which case a full redraw is needed. - */ - if (parent.headerImageHeight == 0) { - int oldHeaderHeight = parent.getHeaderHeight (); - parent.setHeaderImageHeight (value.getBounds ().height); - if (oldHeaderHeight != parent.getHeaderHeight ()) { - /* parent header height changed */ - if (parent.drawCount <= 0 && parent.getHeaderVisible ()) { - parent.header.redraw (); - } - parent.redraw (); - return; - } - } - - if (parent.drawCount <= 0 && parent.getHeaderVisible ()) { - /* don't damage the header's drawn borders */ - parent.header.redraw (getX (), 1, width - 2, parent.getHeaderHeight () - 3, false); - } -} -/** - * 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 Table#setColumnOrder(int[]) - * @see Table#getColumnOrder() - * @see TableColumn#getMoveable() - * @see SWT#Move - * - * @since 3.1 - */ -public void setMoveable (boolean moveable) { - checkWidget (); - this.moveable = moveable; -} -/** - * Sets the resizable attribute. A column that is - * resizable can be resized by the user dragging the - * edge of the header. 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 value) { - checkWidget (); - resizable = value; -} -void setSortDirection (int value) { - if (value == sort) return; - boolean widthChange = value == SWT.NONE || sort == SWT.NONE; - sort = value; - if (widthChange) { - /* - * adding/removing the sort arrow decreases/increases the width that is - * available for the column's header text, so recompute the display text - */ - GC gc = new GC (parent); - computeDisplayText (gc); - gc.dispose (); - } - if (parent.drawCount <= 0 && parent.getHeaderVisible ()) { - /* don't damage the header's drawn borders */ - parent.header.redraw (getX (), 1, width - 2, parent.getHeaderHeight () - 3, false); - } -} -public void setText (String value) { - checkWidget (); - if (value == null) error (SWT.ERROR_NULL_ARGUMENT); - if (value.equals (text)) return; /* same value */ - super.setText (value); - GC gc = new GC (parent); - computeDisplayText (gc); - gc.dispose (); - if (parent.drawCount <= 0 && parent.getHeaderVisible ()) { - /* don't damage the header's drawn borders */ - parent.header.redraw (getX (), 1, width - 2, parent.getHeaderHeight () - 3, false); - } -} -/** - * 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> - * - * @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 (); - if (toolTipText == string) return; - if (toolTipText != null && toolTipText.equals (string)) return; - toolTipText = string; - if (parent.toolTipShell == null) return; /* tooltip not currently showing */ - if (((Integer) parent.toolTipShell.getData ()).intValue () != getIndex ()) return; /* tooltip showing for different column */ - parent.headerUpdateToolTip (getX () + (width / 2)); /* update the tooltip text */ -} -/** - * 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 value) { - checkWidget (); - if (value < 0) return; - if (width == value) return; /* same value */ - parent.updateColumnWidth (this, value); -} -void updateFont (GC gc) { - computeDisplayText (gc); -} -/* - * Perform any internal changes necessary to reflect a changed width. - */ -void updateWidth (GC gc) { - String oldDisplayText = displayText; - computeDisplayText (gc); - /* the header must be damaged if the display text has changed or if the alignment is not LEFT */ - if (parent.getHeaderVisible ()) { - if ((style & SWT.LEFT) == 0 || !oldDisplayText.equals (displayText)) { - int padding = parent.getHeaderPadding (); - parent.header.redraw (getX () + padding, 0, width - padding, parent.getHeaderHeight (), false); - } - } -} -} |