| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import java.util.Vector; |
| |
| /** |
| * Instances of this class represent a selectable user interface object |
| * that represents an item in a table. |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>(none)</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>(none)</dd> |
| * </dl> |
| * <p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| */ |
| public class TableItem extends SelectableItem { |
| private static final int FIRST_COLUMN_IMAGE_INDENT = 2; // Space in front of image - first column only |
| private static final int FIRST_COLUMN_TEXT_INDENT = 4; // Space in front of text - first column only |
| private static final int TEXT_INDENT_NO_IMAGE = 2; // Space in front of item text when no item in the column has an image - first column only |
| private static final int TEXT_INDENT = 6; // Space in front of item text - all other columns |
| private static final int SELECTION_PADDING = 6; // Space behind text in a selected item |
| |
| private Vector dataLabels = new Vector(); // Original text set by the user. Items that don't |
| // have a label are represented by a null slot |
| private String[] trimmedLabels; // Text that is actually displayed, may be trimmed |
| // to fit the column |
| private Vector images = new Vector(); // Item images. Items that don't have an image |
| // are represented by a null slot |
| private Point selectionExtent; // Size of the rectangle drawn to indicate a |
| // selected item. |
| private int imageIndent = 0; // the factor by which the item image and check box, if any, |
| // are indented. The multiplier is the image width. |
| private int index; // index of the item in the parent widget |
| |
| Color background = null; |
| Color foreground = null; |
| Font font = null; |
| Color [] cellBackground, cellForeground; |
| Font[] cellFont; |
| boolean cached; |
| |
| /** |
| * 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 |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public TableItem(Table parent, int style) { |
| this(parent, style, checkNull(parent).getItemCount()); |
| } |
| |
| /** |
| * 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> |
| * |
| * @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 index to store the receiver in its parent |
| * |
| * @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 TableItem(Table parent, int style, int index) { |
| super(parent, style); |
| trimmedLabels = new String[parent.internalGetColumnCount()]; |
| parent.addItem(this, index); |
| } |
| |
| /** |
| * Calculate the size of the rectangle drawn to indicate a selected |
| * item. This is also used to draw the selection focus rectangle. |
| * The selection extent is calculated for the first column only (the |
| * only column the selection is drawn in). |
| */ |
| void calculateSelectionExtent() { |
| Table parent = getParent(); |
| TableColumn column = parent.internalGetColumn(TableColumn.FIRST); |
| GC gc = new GC(parent); |
| gc.setFont(getFont()); |
| String trimmedText = getText(gc, column); |
| int gridLineWidth = parent.getGridLineWidth(); |
| |
| if (trimmedText != null) { |
| selectionExtent = new Point(gc.stringExtent(trimmedText).x, parent.getItemHeight()); |
| selectionExtent.x += getTextIndent(TableColumn.FIRST) + SELECTION_PADDING; |
| selectionExtent.x = Math.min( |
| selectionExtent.x, column.getWidth() - getImageStopX(column.getIndex()) - gridLineWidth); |
| if (parent.getLinesVisible() == true) { |
| selectionExtent.y -= gridLineWidth; |
| } |
| } |
| gc.dispose(); |
| } |
| /** |
| * Throw an SWT.ERROR_NULL_ARGUMENT exception if 'table' is null. |
| * Otherwise return 'table' |
| */ |
| static Table checkNull(Table table) { |
| if (table == null) SWT.error(SWT.ERROR_NULL_ARGUMENT); |
| return table; |
| } |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| void clear() { |
| super.clear(); |
| dataLabels = new Vector(); |
| trimmedLabels = new String[getParent().internalGetColumnCount()]; |
| images = new Vector(); |
| selectionExtent = null; |
| background = foreground = null; |
| font = null; |
| cellBackground = cellForeground = null; |
| cellFont = null; |
| cached = false; |
| } |
| public void dispose() { |
| if (isDisposed()) return; |
| Table parent = getParent(); |
| parent.removeItem(this); |
| super.dispose(); |
| } |
| void doDispose() { |
| dataLabels = null; |
| trimmedLabels = null; |
| images = null; |
| selectionExtent = null; |
| foreground = background = null; |
| font = null; |
| cellForeground = cellBackground = null; |
| cellFont = null; |
| super.doDispose(); |
| } |
| |
| /** |
| * Draw the image of the receiver for column 'index' at |
| * 'destinationPosition' using 'gc'. |
| * Stretch/shrink the image to the fixed image size of the receiver's |
| * parent. |
| * @param gc - GC to draw on. |
| * @param destinationPosition - position on the GC to draw at. |
| * @param index - index of the image to draw |
| * @return Answer the position where drawing stopped. |
| */ |
| Point drawImage(GC gc, Point destinationPosition, int index) { |
| Table parent = getParent(); |
| Image image = getImage(index); |
| Rectangle sourceImageBounds; |
| Point destinationImageExtent = parent.getImageExtent(); |
| int imageOffset; |
| int itemHeight = parent.getItemHeight(); |
| |
| if (image != null) { |
| sourceImageBounds = image.getBounds(); |
| if (index == TableColumn.FIRST){ |
| gc.setBackground(getBackground(index)); |
| gc.fillRectangle( |
| destinationPosition.x, destinationPosition.y, |
| destinationImageExtent.x, itemHeight); |
| } else { |
| // full row select would obscure transparent images in all but the first column |
| // so always clear the image area in this case. Fixes 1FYNITC |
| if ((parent.getStyle() & SWT.FULL_SELECTION) != 0) { |
| gc.fillRectangle( |
| destinationPosition.x, destinationPosition.y, |
| destinationImageExtent.x, destinationImageExtent.y); |
| } |
| } |
| imageOffset = (itemHeight - destinationImageExtent.y) / 2; |
| gc.drawImage( |
| image, 0, 0, // source x, y |
| sourceImageBounds.width, sourceImageBounds.height, // source width, height |
| destinationPosition.x, destinationPosition.y + imageOffset, // destination x, y |
| destinationImageExtent.x, destinationImageExtent.y); // destination width, height |
| } |
| if (((index == TableColumn.FIRST && // always add the image width for the first column |
| parent.hasFirstColumnImage() == true) || // if any item in the first column has an image |
| (index != TableColumn.FIRST && // add the image width if it's not the first column |
| image != null)) && // only when the item actually has an image |
| destinationImageExtent != null) { |
| destinationPosition.x += destinationImageExtent.x; |
| } |
| return destinationPosition; |
| } |
| /** |
| * Draw the label of the receiver for column 'index' at 'position' |
| * using 'gc'. |
| * The background color is set to the selection background color if |
| * the item is selected and the text is drawn for the first column. |
| * @param gc - GC to draw on. |
| * @param position - position on the GC to draw at. |
| * @param index - specifies which subitem text to draw |
| */ |
| void drawText(String label, GC gc, Point position, int index) { |
| Table parent = getParent(); |
| int textOffset, alignmentOffset; |
| |
| if (label != null) { |
| gc.setFont(getFont(index)); |
| boolean drawSelection = (index == TableColumn.FIRST || (parent.getStyle() & SWT.FULL_SELECTION) != 0) && |
| ((parent.style & SWT.HIDE_SELECTION) == 0 || parent.isFocusControl()); |
| if (isSelected() == true && drawSelection == true) { |
| gc.setForeground(getSelectionForegroundColor()); |
| } else { |
| gc.setForeground(getForeground(index)); |
| } |
| alignmentOffset = getAlignmentOffset (index, getBounds(index).width, gc); |
| textOffset = (parent.getItemHeight() - parent.getFontHeight()) / 2; // vertically center the text |
| gc.drawString(label, position.x + alignmentOffset, position.y + textOffset, true); |
| } |
| } |
| int getAlignmentOffset(int columnIndex, int columnWidth, GC gc) { |
| Table parent = getParent(); |
| TableColumn column = parent.internalGetColumn (columnIndex); |
| Image image = getImage(columnIndex); |
| int alignmentOffset = 0; |
| int alignment = column.getAlignment(); |
| String label = getText(gc, column); |
| int imageWidth = 0; |
| int textWidth = gc.stringExtent (label).x; |
| Point imageExtent = parent.getImageExtent(); |
| if (((columnIndex == TableColumn.FIRST && // always add the image width for the first column |
| parent.hasFirstColumnImage() == true) || // if any item in the first column has an image |
| (columnIndex != TableColumn.FIRST && // add the image width if it's not the first column |
| image != null)) && // only when the item actually has an image |
| imageExtent != null) { |
| textWidth += imageExtent.x; |
| } |
| if ((alignment & SWT.RIGHT) != 0) { |
| alignmentOffset = columnWidth - textWidth - imageWidth - TEXT_INDENT - TEXT_INDENT; |
| } |
| if ((alignment & SWT.CENTER) != 0) { |
| alignmentOffset = ((columnWidth - textWidth) / 2) - imageWidth - TEXT_INDENT; |
| } |
| if (alignmentOffset < 0) alignmentOffset = 0; |
| return alignmentOffset; |
| } |
| /** |
| * Returns the receiver's background color. |
| * |
| * @return the background color |
| * |
| * @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 2.0 |
| * |
| */ |
| public Color getBackground(){ |
| checkWidget (); |
| if (background != null) return background; |
| Table parent = getParent (); |
| return parent.getBackground (); |
| } |
| /** |
| * Returns the background color at the given column index in the receiver. |
| * |
| * @param index the column index |
| * @return the background color |
| * |
| * @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 3.0 |
| */ |
| public Color getBackground (int index) { |
| checkWidget (); |
| Table parent = getParent (); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return getBackground (); |
| if (cellBackground == null || cellBackground [index] == null) return getBackground (); |
| return cellBackground [index]; |
| } |
| /** |
| * Returns a rectangle describing the receiver's size and location |
| * relative to its parent at a column in the table. |
| * |
| * @param index the index that specifies the column |
| * @return the receiver's bounding column rectangle |
| * |
| * @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 Rectangle getBounds(int index) { |
| checkWidget(); |
| Rectangle itemBounds; |
| Rectangle columnBounds; |
| Rectangle checkboxBounds; |
| Table parent = getParent(); |
| TableColumn column; |
| int itemIndex = parent.indexOf(this); |
| int itemHeight = parent.getItemHeight(); |
| int gridLineWidth = parent.getLinesVisible() ? parent.getGridLineWidth() : 0; |
| int itemYPos; |
| |
| if (itemIndex == -1 || index < 0 || index >= parent.internalGetColumnCount()) { |
| itemBounds = new Rectangle(0, 0, 0, 0); |
| } |
| else { |
| column = parent.internalGetColumn(index); |
| columnBounds = column.getBounds(); |
| itemYPos = columnBounds.y + itemHeight * itemIndex; |
| itemBounds = new Rectangle( |
| columnBounds.x, itemYPos, |
| columnBounds.width - gridLineWidth, itemHeight - gridLineWidth); |
| if (index == TableColumn.FIRST) { |
| if (isCheckable() == true) { |
| checkboxBounds = getCheckboxBounds(); |
| itemBounds.x = checkboxBounds.x + checkboxBounds.width + CHECKBOX_PADDING; // add checkbox start, width and space behind checkbox |
| itemBounds.width -= itemBounds.x; |
| } |
| else { |
| int imageIndent = getImageIndentPixel(); |
| itemBounds.x += imageIndent; |
| itemBounds.width -= imageIndent; |
| } |
| } |
| } |
| return itemBounds; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is checked, |
| * and false otherwise. When the parent does not have |
| * the <code>CHECK</code> style, return false. |
| * |
| * @return the checked state of the checkbox |
| * |
| * @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 getChecked() { |
| checkWidget(); |
| return super.getChecked(); |
| } |
| /** |
| * Answer the x position of the item check box |
| */ |
| int getCheckboxXPosition() { |
| return getImageIndentPixel(); |
| } |
| /** |
| * Answer the item labels set by the user. |
| * These may not be the same as those drawn on the screen. The latter |
| * may be trimmed to fit the column. Items that don't have a label are |
| * represented by a null slot in the vector. |
| * @return Vector - the item labels set by the user. |
| */ |
| Vector getDataLabels() { |
| return dataLabels; |
| } |
| /** |
| * Return the position at which the string starts that is used |
| * to indicate a truncated item text. |
| * @param columnIndex - index of the column for which the position of |
| * the truncation replacement should be calculated |
| * @param columnWidth - width of the column for which the position of |
| * the truncation replacement should be calculated |
| * @return -1 when the item text is not truncated |
| */ |
| int getDotStartX(int columnIndex, int columnWidth) { |
| GC gc; |
| Table parent = getParent(); |
| String label = getText(columnIndex); |
| int alignment = parent.internalGetColumn (columnIndex).getAlignment(); |
| int dotStartX = -1; |
| int maxWidth; |
| |
| if (label != null) { |
| gc = new GC(parent); |
| gc.setFont (getFont()); |
| dotStartX = getAlignmentOffset(columnIndex, columnWidth, gc); |
| if ((alignment & SWT.LEFT) != 0) { |
| maxWidth = getMaxTextWidth(columnIndex, columnWidth); |
| label = parent.trimItemText(label, maxWidth, gc); |
| if (label.endsWith(Table.DOT_STRING)) { |
| int dotsWidth = gc.stringExtent(Table.DOT_STRING).x; |
| dotStartX = gc.stringExtent(label).x - dotsWidth; |
| // add indents, margins and image width |
| dotStartX += getImageStopX(columnIndex); |
| dotStartX += getTextIndent(columnIndex); |
| } |
| } |
| gc.dispose(); |
| } |
| return dotStartX; |
| } |
| |
| /** |
| * Returns the font that the receiver will use to paint textual information for this item. |
| * |
| * @return the receiver's font |
| * |
| * @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 3.0 |
| */ |
| public Font getFont () { |
| checkWidget (); |
| if (font != null) return font; |
| Table parent = getParent (); |
| return parent.getFont (); |
| } |
| |
| /** |
| * Returns the font that the receiver will use to paint textual information |
| * for the specified cell in this item. |
| * |
| * @param index the column index |
| * @return the receiver's font |
| * |
| * @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 3.0 |
| */ |
| public Font getFont (int index) { |
| checkWidget (); |
| Table parent = getParent (); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return getFont (); |
| if (cellFont == null || cellFont [index] == null) return getFont (); |
| return cellFont [index]; |
| } |
| |
| /** |
| * Returns the foreground color that the receiver will use to draw. |
| * |
| * @return the receiver's foreground color |
| * |
| * @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 2.0 |
| * |
| */ |
| public Color getForeground(){ |
| checkWidget (); |
| if (foreground != null) return foreground; |
| Table parent = getParent (); |
| return parent.getForeground (); |
| } |
| /** |
| * |
| * Returns the foreground color at the given column index in the receiver. |
| * |
| * @param index the column index |
| * @return the foreground color |
| * |
| * @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 3.0 |
| */ |
| public Color getForeground (int index) { |
| checkWidget (); |
| Table parent = getParent (); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return getForeground (); |
| if (cellForeground == null || cellForeground [index] == null) return getForeground (); |
| return cellForeground [index]; |
| } |
| /** |
| * Returns <code>true</code> if the receiver is grayed, |
| * and false otherwise. When the parent does not have |
| * the <code>CHECK</code> style, return false. |
| * |
| * @return the grayed state of the checkbox |
| * |
| * @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 getGrayed() { |
| checkWidget(); |
| return super.getGrayed(); |
| } |
| public Image getImage() { |
| checkWidget(); |
| return getImage(0); |
| } |
| /** |
| * Returns the image stored at the given column index in the receiver, |
| * or null if the image has not been set or if the column does not exist. |
| * |
| * @param index the column index |
| * @return the image stored at the given column index 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 Image getImage(int columnIndex) { |
| checkWidget(); |
| Image image = null; |
| Vector images = getImages(); |
| int itemIndex = getParent().indexOf(this); |
| |
| if (itemIndex != -1 && columnIndex >= 0 && columnIndex < images.size()) { |
| image = (Image) images.elementAt(columnIndex); |
| } |
| return image; |
| } |
| /** |
| * Returns a rectangle describing the size and location |
| * relative to its parent of an image at a column in the |
| * table. |
| * |
| * @param index the index that specifies the column |
| * @return the receiver's bounding image rectangle |
| * |
| * @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 Rectangle getImageBounds(int index) { |
| checkWidget(); |
| Table parent = getParent(); |
| int itemIndex = parent.indexOf (this); |
| int imageWidth = 0; |
| Point imageExtent = parent.getImageExtent(); |
| Rectangle imageBounds = getBounds(index); |
| |
| if (itemIndex == -1) { |
| imageBounds = new Rectangle(0, 0, 0, 0); |
| } |
| else |
| if (imageExtent != null) { |
| if (index == TableColumn.FIRST || getImage(index) != null) { |
| imageWidth = imageExtent.x; |
| } |
| } |
| imageBounds.width = imageWidth; |
| return imageBounds; |
| } |
| /** |
| * Gets the image indent. |
| * |
| * @return the indent |
| * |
| * @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 getImageIndent() { |
| checkWidget(); |
| int index = getParent().indexOf(this); |
| |
| if (index == -1) { |
| return 0; |
| } |
| return imageIndent; |
| } |
| /** |
| * Answer the number of pixels the image in the first column is |
| * indented. Calculation starts at the column start and counts |
| * all pixels except the check box. |
| */ |
| int getImageIndentPixel() { |
| int indentPixel = FIRST_COLUMN_IMAGE_INDENT; |
| Point imageExtent = getParent().getImageExtent(); |
| |
| if (imageExtent != null) { |
| indentPixel += imageExtent.x * getImageIndent(); |
| } |
| return indentPixel; |
| } |
| /** |
| * Answer the item images set by the user. Items that don't have an |
| * image are represented by a null slot in the vector. |
| */ |
| Vector getImages() { |
| return images; |
| } |
| /** |
| * Calculate the x coordinate where the item image of column |
| * 'columnIndex' stops. |
| * @param columnIndex - the column for which the stop position of the |
| * image should be calculated. |
| */ |
| int getImageStopX(int columnIndex) { |
| int imageStopX = 0; |
| Table parent = getParent(); |
| Rectangle checkboxBounds; |
| |
| if (columnIndex == TableColumn.FIRST) { |
| if (isCheckable() == true) { |
| checkboxBounds = getCheckboxBounds(); |
| imageStopX += checkboxBounds.x + checkboxBounds.width + CHECKBOX_PADDING; |
| } |
| else { |
| imageStopX = getImageIndentPixel(); |
| } |
| } |
| if (((columnIndex == TableColumn.FIRST && // always add the image width for the first column |
| parent.hasFirstColumnImage() == true) || // if any item in the first column has an image |
| (columnIndex != TableColumn.FIRST && // add the image width if it's not the first column |
| getImage(columnIndex) != null)) && // only when the item actually has an image |
| parent.getImageExtent() != null) { |
| imageStopX += parent.getImageExtent().x; |
| } |
| return imageStopX; |
| } |
| /** |
| * Return the index of the item in its parent widget. |
| */ |
| int getIndex() { |
| return index; |
| } |
| /** |
| * Return the item extent in the specified column |
| * The extent includes the actual width of the item including checkbox, |
| * image and text. |
| */ |
| Point getItemExtent(TableColumn column) { |
| Table parent = getParent(); |
| int columnIndex = column.getIndex(); |
| Point extent = new Point(getImageStopX(columnIndex), parent.getItemHeight() - parent.getGridLineWidth()); |
| GC gc = new GC(parent); |
| gc.setFont(getFont()); |
| String trimmedText = getText(gc, column); |
| |
| if (trimmedText != null && trimmedText.length() > 0) { |
| extent.x += gc.stringExtent(trimmedText).x + getTextIndent(columnIndex); |
| } |
| if (columnIndex == TableColumn.FIRST) { |
| extent.x += SELECTION_PADDING; |
| } |
| gc.dispose(); |
| return extent; |
| } |
| /** |
| * Answer the maximum width in pixel of the text that fits in the |
| * column identified by 'columnIndex' without trimming the text. |
| * @param columnIndex - the column for which the maximum text width |
| * should be calculated. |
| * @param columnWidth - width of the column 'columnIndex' |
| */ |
| int getMaxTextWidth(int columnIndex, int columnWidth) { |
| int itemWidth = getImageStopX(columnIndex) + getTextIndent(columnIndex) * 2; |
| return columnWidth - itemWidth; |
| } |
| /** |
| * 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 (Table) super.getSelectableParent(); |
| } |
| /** |
| * Answer the width of the item required to display the complete contents. |
| */ |
| int getPreferredWidth(int index) { |
| int size = getImageStopX(index); |
| String text = getText(index); |
| if (text != null) { |
| size += getTextWidth(text) + getTextIndent(index) * 2 + 1; |
| } |
| return size; |
| } |
| /** |
| * Return the size of the rectangle drawn to indicate a selected item. |
| * This is also used to draw the selection focus rectangle and drop |
| * insert marker. |
| * Implements SelectableItem#getSelectionExtent |
| */ |
| Point getSelectionExtent() { |
| Table parent = getParent(); |
| Point extent; |
| |
| if ((parent.getStyle() & SWT.FULL_SELECTION) == 0) { // regular, first column, selection? |
| if (selectionExtent == null) { |
| calculateSelectionExtent(); |
| } |
| extent = selectionExtent; |
| } |
| else { |
| extent = parent.getFullSelectionExtent(this); |
| } |
| return extent; |
| } |
| /** |
| * Return the x position of the selection rectangle |
| * Implements SelectableItem#getSelectionX |
| */ |
| int getSelectionX() { |
| return getImageStopX(TableColumn.FIRST) + getParent().getHorizontalOffset(); |
| } |
| public String getText() { |
| checkWidget(); |
| return getText(0); |
| } |
| /** |
| * Returns the text stored at the given column index in the receiver, |
| * or empty string if the text has not been set. |
| * |
| * @param index the column index |
| * @return the text stored at the given column index 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_TEXT - if the column at index does not exist</li> |
| * </ul> |
| */ |
| public String getText(int columnIndex) { |
| checkWidget(); |
| int itemIndex = getParent().indexOf(this); |
| Vector labels = getDataLabels(); |
| String label = null; |
| |
| if (itemIndex == -1) { |
| error(SWT.ERROR_CANNOT_GET_TEXT); |
| } |
| if (columnIndex >= 0 && columnIndex < labels.size()) { |
| label = (String) labels.elementAt(columnIndex); |
| } |
| if (label == null) { |
| label = ""; // label vector is initialized with null instead of empty Strings |
| } |
| return label; |
| } |
| /** |
| * Answer the text that is going to be drawn in 'column'. This |
| * text may be a trimmed copy of the original text set by the |
| * user if it doesn't fit into the column. In that case the last |
| * characters are replaced with Table.DOT_STRING. |
| * A cached copy of the trimmed text is returned if available. |
| * @param gc - GC to use for measuring the text extent |
| * @param column - TableColumn for which the text should be returned |
| */ |
| String getText(GC gc, TableColumn column) { |
| int columnIndex = column.getIndex(); |
| String label = getTrimmedText(columnIndex); |
| int maxWidth; |
| |
| if (label == null) { |
| gc.setFont(getFont()); |
| maxWidth = getMaxTextWidth(columnIndex, column.getWidth()); |
| label = getParent().trimItemText(getText(columnIndex), maxWidth, gc); |
| } |
| return label; |
| } |
| /** |
| * Answer the indent of the text in column 'columnIndex' in pixel. |
| * This indent is used in front of and behind the item text. |
| * @param columnIndex - specifies the column for which the indent |
| * should be calculated. |
| */ |
| int getTextIndent(int columnIndex) { |
| int textIndent; |
| |
| if (columnIndex == TableColumn.FIRST) { |
| if (getParent().hasFirstColumnImage() == false) { |
| textIndent = TEXT_INDENT_NO_IMAGE; |
| } |
| else { |
| textIndent = FIRST_COLUMN_TEXT_INDENT; |
| } |
| } |
| else { |
| textIndent = TEXT_INDENT; |
| } |
| return textIndent; |
| } |
| /** |
| * Answer the cached trimmed text for column 'columnIndex'. |
| * Answer null if it hasn't been calculated yet. |
| * @param columnIndex - specifies the column for which the |
| * trimmed text should be answered. |
| */ |
| String getTrimmedText(int columnIndex) { |
| String label = null; |
| String labels[] = getTrimmedTexts(); |
| |
| if (columnIndex < labels.length) { |
| label = labels[columnIndex]; |
| } |
| return label; |
| } |
| /** |
| * Answer an array of cached trimmed labels. |
| */ |
| String [] getTrimmedTexts() { |
| return trimmedLabels; |
| } |
| /** |
| * Answer the width of 'text' in pixel. |
| * Answer 0 if 'text' is null. |
| */ |
| int getTextWidth(String text) { |
| int textWidth = 0; |
| if (text != null) { |
| GC gc = new GC(getParent()); |
| gc.setFont(getFont()); |
| textWidth = gc.stringExtent(text).x; |
| gc.dispose(); |
| } |
| return textWidth; |
| } |
| /** |
| * Ensure that the image and label vectors have at least |
| * 'newSize' number of elements. |
| */ |
| void growVectors(int newSize) { |
| Vector images = getImages(); |
| Vector labels = getDataLabels(); |
| |
| if (newSize > images.size()){ |
| images.setSize(newSize); |
| } |
| if (newSize > labels.size()){ |
| labels.setSize(newSize); |
| } |
| } |
| /** |
| * Insert 'column' into the receiver. |
| */ |
| void insertColumn(TableColumn column) { |
| Vector data = getDataLabels(); |
| Vector images = getImages(); |
| String stringData[]; |
| Image imageData[]; |
| int index = column.getIndex(); |
| |
| if (index < data.size()) { |
| data.insertElementAt(null, index); |
| } |
| else { |
| data.addElement(null); |
| } |
| stringData = new String[data.size()]; |
| data.copyInto(stringData); |
| setText(stringData); |
| |
| if (index < images.size()) { |
| images.insertElementAt(null, index); |
| } |
| else { |
| images.addElement(null); |
| } |
| imageData = new Image[images.size()]; |
| images.copyInto(imageData); |
| setImage(imageData); |
| |
| String[] tempTrimmed = new String[trimmedLabels.length + 1]; |
| System.arraycopy(trimmedLabels, 0, tempTrimmed, 0, index); |
| System.arraycopy(trimmedLabels, index, tempTrimmed, index + 1, trimmedLabels.length - index); |
| trimmedLabels = tempTrimmed; |
| |
| } |
| /** |
| * Sets the image at an index. |
| * |
| * @param image the new image (or null) |
| * |
| * @exception SWTError(ERROR_THREAD_INVALID_ACCESS) |
| * when called from the wrong thread |
| * @exception SWTError(ERROR_WIDGET_DISPOSED) |
| * when the widget has been disposed |
| */ |
| void internalSetImage(int columnIndex, Image image) { |
| Vector images = getImages(); |
| boolean imageWasNull = false; |
| Table parent = getParent(); |
| |
| if (columnIndex >= 0 && |
| columnIndex < parent.internalGetColumnCount()) { |
| if (columnIndex >= images.size()) { |
| growVectors(columnIndex + 1); |
| } |
| Image oldImage = (Image) images.elementAt(columnIndex); |
| if (oldImage == null && image != null) { |
| imageWasNull = true; |
| } |
| if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| if (image != null && image.type == SWT.ICON && image.equals (oldImage)) return; |
| images.setElementAt(image, columnIndex); |
| reset(columnIndex); // new image may cause text to no longer fit in the column |
| notifyImageChanged(columnIndex, imageWasNull); |
| } |
| } |
| /** |
| * Sets the widget text. |
| * |
| * The widget text for an item is the label of the |
| * item or the label of the text specified by a column |
| * number. |
| * |
| * @param index the column number |
| * @param text the new text |
| * |
| */ |
| void internalSetText(int columnIndex, String string) { |
| Vector labels = getDataLabels(); |
| Table parent = getParent(); |
| String oldText; |
| |
| if (columnIndex >= 0 && |
| columnIndex < parent.internalGetColumnCount()) { |
| if (columnIndex >= labels.size()) { |
| growVectors(columnIndex + 1); |
| } |
| oldText = (String) labels.elementAt(columnIndex); |
| if (string.equals(oldText) == false) { |
| labels.setElementAt(string, columnIndex); |
| reset(columnIndex); |
| notifyTextChanged(columnIndex, oldText == null); |
| } |
| } |
| } |
| /** |
| * Answer whether the click at 'xPosition' on the receiver is a |
| * selection click. |
| * A selection click occurred when the click was behind the image |
| * and before the end of the item text. |
| * @return |
| * true - 'xPosition' is a selection click. |
| * false - otherwise |
| */ |
| boolean isSelectionHit(int xPosition) { |
| int itemStopX = getImageStopX(TableColumn.FIRST); |
| Point selectionExtent = getSelectionExtent(); |
| |
| if (selectionExtent != null) { |
| itemStopX += selectionExtent.x; |
| } |
| return (xPosition > getCheckboxBounds().x + getCheckboxBounds().width) && (xPosition <= itemStopX); |
| } |
| /** |
| * The image for the column identified by 'columnIndex' has changed. |
| * Notify the parent widget and supply redraw coordinates, if possible. |
| * @param columnIndex - index of the column that has a new image. |
| */ |
| void notifyImageChanged(int columnIndex, boolean imageWasNull) { |
| Table parent = getParent(); |
| Rectangle changedColumnBounds; |
| Image currentImage; |
| int redrawStartX = 0; |
| int redrawWidth = 0; |
| int columnCount = parent.internalGetColumnCount(); |
| |
| if (columnIndex >= 0 && columnIndex < columnCount && parent.getVisibleRedrawY(this) != -1) { |
| changedColumnBounds = parent.internalGetColumn(columnIndex).getBounds(); |
| currentImage = getImage(columnIndex); |
| redrawStartX = Math.max(0, getImageBounds(columnIndex).x); |
| if (parent.getImageExtent() != null && imageWasNull == false && currentImage != null) { |
| redrawWidth = getImageStopX(columnIndex); |
| } |
| else { |
| redrawWidth = changedColumnBounds.width; |
| } |
| redrawWidth += changedColumnBounds.x - redrawStartX; |
| } |
| cached = true; |
| parent.itemChanged(this, redrawStartX, redrawWidth); |
| } |
| |
| /** |
| * The label for the column identified by 'columnIndex' has changed. |
| * Notify the parent widget and supply redraw coordinates, if possible. |
| * @param columnIndex - index of the column that has a new label. |
| */ |
| void notifyTextChanged(int columnIndex, boolean textWasNull) { |
| Table parent = getParent(); |
| String text; |
| Rectangle columnBounds; |
| int redrawStartX = 0; |
| int redrawWidth = 0; |
| int columnCount = parent.internalGetColumnCount(); |
| |
| if (columnIndex >= 0 && columnIndex < columnCount && parent.getVisibleRedrawY(this) != -1) { |
| text = (String) getDataLabels().elementAt(columnIndex); |
| columnBounds = parent.internalGetColumn(columnIndex).getBounds(); |
| redrawStartX = columnBounds.x; |
| if (getImage(columnIndex) != null) { |
| redrawStartX += getImageStopX(columnIndex); |
| } |
| redrawStartX = Math.max(0, redrawStartX); |
| // don't redraw if text changed from null to empty string |
| if (textWasNull == false || text.length() > 0) { |
| redrawWidth = columnBounds.x + columnBounds.width - redrawStartX; |
| } |
| } |
| cached = true; |
| parent.itemChanged(this, redrawStartX, redrawWidth); |
| } |
| /** |
| * Draw the receiver at 'paintPosition' in the column identified by |
| * 'columnIndex' using 'gc'. |
| * @param gc - GC to use for drawing |
| * @param paintPosition - position where the receiver should be drawing. |
| * @param column - the column to draw in |
| */ |
| void paint(GC gc, Point paintPosition, TableColumn column) { |
| int columnIndex = column.getIndex(); |
| String label = getText(gc, column); |
| String oldLabel = getTrimmedText(columnIndex); |
| Table parent = getParent (); |
| int itemHeight = parent.getItemHeight (); |
| |
| if (label != null && label.equals(oldLabel) == false) { |
| setTrimmedText(label, columnIndex); |
| selectionExtent = null; // force a recalculation next time the selection extent is needed |
| } |
| Color background = gc.getBackground(); |
| if (!isSelected() || ((parent.getStyle() & SWT.HIDE_SELECTION) != 0 && !parent.isFocusControl())) { |
| int width = column.getBounds().width; |
| int height = itemHeight; |
| gc.setBackground(getBackground(columnIndex)); |
| gc.fillRectangle(paintPosition.x, paintPosition.y, width, height); |
| } else { |
| if (columnIndex == TableColumn.FIRST) { |
| int width = getImageIndentPixel(); |
| int height = itemHeight; |
| gc.setBackground(getBackground (columnIndex)); |
| gc.fillRectangle(paintPosition.x, paintPosition.y, width, height); |
| } else { |
| if ((parent.getStyle() & SWT.FULL_SELECTION) == 0) { |
| int width = column.getBounds ().width; |
| int height = itemHeight; |
| gc.setBackground(getBackground (columnIndex)); |
| gc.fillRectangle(paintPosition.x, paintPosition.y, width, height); |
| } |
| } |
| } |
| if (columnIndex == TableColumn.FIRST) { |
| paintPosition.x += getImageIndentPixel(); |
| if (isCheckable() == true) { |
| paintPosition = drawCheckbox(gc, paintPosition); |
| } |
| } |
| paintPosition = drawImage(gc, paintPosition, columnIndex); |
| paintPosition.x += getTextIndent(columnIndex); |
| drawText(label, gc, paintPosition, columnIndex); |
| gc.setBackground(background); |
| } |
| /** |
| * Remove 'column' from the receiver. |
| */ |
| void removeColumn(TableColumn column) { |
| Vector data = getDataLabels(); |
| Vector images = getImages(); |
| String stringData[]; |
| Image imageData[]; |
| int index = column.getIndex(); |
| |
| if (index < data.size()) { |
| data.removeElementAt(index); |
| stringData = new String[data.size()]; |
| data.copyInto(stringData); |
| setText(stringData); |
| } |
| if (index < images.size()) { |
| images.removeElementAt(index); |
| imageData = new Image[images.size()]; |
| images.copyInto(imageData); |
| setImage(imageData); |
| } |
| |
| if (trimmedLabels.length == 1) { |
| trimmedLabels = new String[0]; |
| } else { |
| String[] tempTrimmed = new String[trimmedLabels.length - 1]; |
| System.arraycopy(trimmedLabels, 0, tempTrimmed, 0, index); |
| System.arraycopy(trimmedLabels, index +1, tempTrimmed, index, trimmedLabels.length - index -1); |
| trimmedLabels = tempTrimmed; |
| } |
| |
| } |
| /** |
| * Reset the cached trimmed label for the sub item identified by |
| * 'index'. |
| * @param index - index of the label that should be reset. |
| */ |
| void reset(int index) { |
| String trimmedLabels[] = getTrimmedTexts(); |
| |
| if (index >= 0 && index < trimmedLabels.length) { |
| trimmedLabels[index] = null; |
| } |
| if (index == TableColumn.FIRST) { |
| selectionExtent = null; |
| } |
| } |
| |
| void redraw(){ |
| cached = true; |
| Table parent = getParent(); |
| int y = parent.getRedrawY(this); |
| parent.redraw(0, y, parent.getClientArea().width, parent.getItemHeight(), false); |
| } |
| /** |
| * Sets the receiver's background color to the color specified |
| * by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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> |
| * |
| * @since 2.0 |
| * |
| */ |
| public void setBackground (Color color) { |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (background != null && background.equals (color)) return; |
| background = color; |
| redraw(); |
| } |
| /** |
| * Sets the background color at the given column index in the receiver |
| * to the color specified by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param index the column index |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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> |
| * |
| * @since 3.0 |
| * |
| */ |
| public void setBackground (int index, Color color) { |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| Table parent = getParent (); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| if (cellBackground == null) { |
| cellBackground = new Color [count]; |
| } |
| if (cellBackground [index] != null && cellBackground [index].equals (color)) return; |
| cellBackground [index] = color; |
| redraw (); |
| } |
| |
| /** |
| * Sets the font that the receiver will use to paint textual information |
| * for this item to the font specified by the argument, or to the default font |
| * for that kind of control if the argument is null. |
| * |
| * @param font the new font (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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> |
| * |
| * @since 3.0 |
| */ |
| public void setFont (Font font){ |
| checkWidget (); |
| if (font != null && font.isDisposed ()) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (this.font != null && this.font.equals (font)) return; |
| this.font = font; |
| redraw (); |
| } |
| |
| /** |
| * Sets the font that the receiver will use to paint textual information |
| * for the specified cell in this item to the font specified by the |
| * argument, or to the default font for that kind of control if the |
| * argument is null. |
| * |
| * @param index the column index |
| * @param font the new font (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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> |
| * |
| * @since 3.0 |
| */ |
| public void setFont (int index, Font font) { |
| checkWidget (); |
| if (font != null && font.isDisposed ()) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| Table parent = getParent (); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| if (cellFont == null) { |
| cellFont = new Font [count]; |
| } |
| if (cellFont [index] != null && cellFont [index].equals (font)) return; |
| cellFont [index] = font; |
| redraw (); |
| } |
| |
| /** |
| * Sets the receiver's foreground color to the color specified |
| * by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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> |
| * |
| * @since 2.0 |
| * |
| */ |
| public void setForeground (Color color){ |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (foreground != null && foreground.equals (color)) return; |
| foreground = color; |
| redraw(); |
| } |
| /** |
| * Sets the foreground color at the given column index in the receiver |
| * to the color specified by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param index the column index |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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> |
| * |
| * @since 3.0 |
| * |
| */ |
| public void setForeground (int index, Color color){ |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| SWT.error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| Table parent = getParent (); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count -1) return; |
| if (cellForeground == null) { |
| cellForeground = new Color [count]; |
| } |
| if (cellForeground [index] != null && cellForeground [index].equals (color)) return; |
| cellForeground [index] = color; |
| redraw (); |
| } |
| /** |
| * Sets the image for multiple columns in the Table. |
| * |
| * @param images the array of new images |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the array of images is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if one of the images 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 setImage(Image [] images) { |
| checkWidget(); |
| if (images == null) { |
| error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| if (getParent().indexOf(this) == -1) { |
| return; |
| } |
| for (int i = 0; i < images.length; i++) { |
| internalSetImage(i, images[i]); |
| } |
| } |
| /** |
| * Sets the receiver's image at a column. |
| * |
| * @param index the column index |
| * @param image the new image |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the image 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 setImage(int index, Image image) { |
| checkWidget(); |
| if (getParent().indexOf(this) != -1) { |
| internalSetImage(index, image); |
| } |
| } |
| public void setImage(Image image) { |
| checkWidget(); |
| setImage(0, image); |
| } |
| /** |
| * Sets the indent of the first column's image, expressed in terms of the image's width. |
| * |
| * @param indent the new indent |
| * |
| * </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 setImageIndent(int indent) { |
| checkWidget(); |
| Table parent = getParent(); |
| TableColumn column; |
| int index = parent.indexOf(this); |
| |
| if (index != -1 && indent >= 0 && indent != imageIndent) { |
| imageIndent = indent; |
| column = parent.internalGetColumn(TableColumn.FIRST); |
| parent.redraw( |
| 0, parent.getRedrawY(this), |
| column.getWidth(), parent.getItemHeight(), false); |
| cached = true; |
| } |
| } |
| /** |
| * Sets the text for multiple columns in the table. |
| * |
| * @param strings the array of new strings |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the text 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 void setText(String [] strings) { |
| checkWidget(); |
| if (strings == null) { |
| error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| if (getParent().indexOf(this) == -1) { |
| return; |
| } |
| for (int i = 0; i < strings.length; i++) { |
| String string = strings[i]; |
| if (string != null) { |
| internalSetText(i, string); |
| } |
| } |
| } |
| /** |
| * Sets the receiver's text at a column |
| * |
| * @param index the column index |
| * @param string the new text |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the text 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 void setText (int index, String string) { |
| checkWidget(); |
| if (string == null) { |
| error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| if (getParent().indexOf(this) != -1) { |
| internalSetText(index, string); |
| } |
| } |
| public void setText(String text) { |
| checkWidget(); |
| if (text == null) { |
| error(SWT.ERROR_NULL_ARGUMENT); |
| } |
| setText(0, text); |
| } |
| /** |
| * Set the trimmed text of column 'columnIndex' to label. The trimmed |
| * text is the one that is displayed in a column. It may be shorter than |
| * the text originally set by the user via setText(...) to fit the |
| * column. |
| * @param label - the text label of column 'columnIndex'. May be trimmed |
| * to fit the column. |
| * @param columnIndex - specifies the column whose text label should be |
| * set. |
| */ |
| void setTrimmedText(String label, int columnIndex) { |
| String labels[] = getTrimmedTexts(); |
| |
| if (columnIndex < labels.length) { |
| labels[columnIndex] = label; |
| } |
| } |
| /** |
| * Sets the checked state of the checkbox for this item. This state change |
| * only applies if the Table was created with the SWT.CHECK style. |
| * |
| * @param checked the new checked state of the checkbox |
| * |
| * @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 setChecked(boolean checked) { |
| checkWidget(); |
| super.setChecked(checked); |
| } |
| /** |
| * Sets the grayed state of the checkbox for this item. This state change |
| * only applies if the Table was created with the SWT.CHECK style. |
| * |
| * @param grayed the new grayed state of the checkbox; |
| * |
| * @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 setGrayed (boolean grayed) { |
| checkWidget(); |
| super.setGrayed(grayed); |
| } |
| /** |
| * Set the index of this item in its parent widget to 'newIndex'. |
| */ |
| void setIndex(int newIndex) { |
| index = newIndex; |
| } |
| |
| } |
| |