diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/emulated/treetable/org/eclipse/swt/widgets/TableItem.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/emulated/treetable/org/eclipse/swt/widgets/TableItem.java | 1093 |
1 files changed, 0 insertions, 1093 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/emulated/treetable/org/eclipse/swt/widgets/TableItem.java b/bundles/org.eclipse.swt/Eclipse SWT/emulated/treetable/org/eclipse/swt/widgets/TableItem.java deleted file mode 100644 index 8c2056a3cd..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/emulated/treetable/org/eclipse/swt/widgets/TableItem.java +++ /dev/null @@ -1,1093 +0,0 @@ -package org.eclipse.swt.widgets;
-
-/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved
- */
-
-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 = new String[0]; // 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
-
-/**
- * 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
- * for all SWT widget classes should include a comment which
- * describes the style constants which are applicable to the class.
- * </p>
- *
- * @param parent a composite control which will be the parent of the new instance (cannot be null)
- * @param style the style of control to construct
- *
- * @exception IllegalArgumentException <ul>
- * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
- * </ul>
- * @exception SWTException <ul>
- * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
- * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
- * </ul>
- *
- * @see SWT
- * @see Widget#checkSubclass
- * @see Widget#getStyle
- */
-public 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
- * for all SWT widget classes should include a comment which
- * describes the style constants which are applicable to the class.
- * </p>
- *
- * @param parent a composite control which will be the parent of the new instance (cannot be null)
- * @param style the style of control to construct
- * @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);
- 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);
- 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);
-}
-public void dispose() {
- if (isDisposed()) return;
- Table parent = getParent();
- parent.removeItem(this);
- super.dispose();
-}
-void doDispose() {
- dataLabels = null;
- trimmedLabels = null;
- images = null;
- selectionExtent = 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();
-
- if (image != null) {
- sourceImageBounds = image.getBounds();
- // 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 && index != TableColumn.FIRST) {
- gc.fillRectangle(
- destinationPosition.x, destinationPosition.y,
- destinationImageExtent.x, destinationImageExtent.y);
- }
- gc.drawImage(
- image, 0, 0, // source x, y
- sourceImageBounds.width, sourceImageBounds.height, // source width, height
- destinationPosition.x, destinationPosition.y, // 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();
- boolean drawSelection;
- int textOffset;
- int textHeight;
-
- if (label != null) {
- drawSelection = (index == TableColumn.FIRST || (parent.getStyle() & SWT.FULL_SELECTION) != 0);
- if (isSelected() == true && drawSelection == true) {
- gc.setBackground(getSelectionBackgroundColor());
- gc.setForeground(getSelectionForegroundColor());
- }
- textHeight = gc.stringExtent(label).y;
- textOffset = (parent.getItemHeight() - textHeight) / 2; // vertically center the text
- gc.drawString(label, position.x, position.y + textOffset);
- if (isSelected() == true && drawSelection == true) {
- gc.setBackground(parent.getBackground());
- gc.setForeground(parent.getForeground());
- }
- }
-}
-
-/**
- * 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.getGridLineWidth();
- 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 {
- itemBounds.x += getImageIndentPixel();
- }
- }
- }
- return itemBounds;
-}
-/**
- * Returns <code>true</code> if the receiver is checked,
- * and false otherwise. When the parent does not have
- * the <code>CHECK style, return false.
- *
- * @return the checked state
- *
- * @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;
-}
-public Display getDisplay() {
- return super.getDisplay();
-}
-/**
- * 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 dotStartX = -1;
- int maxWidth;
-
- if (label != null) {
- gc = new GC(parent);
- maxWidth = getMaxTextWidth(columnIndex, columnWidth);
- label = parent.trimItemText(label, maxWidth, gc);
- if (label.endsWith(Table.DOT_STRING) == true) {
- dotStartX = gc.stringExtent(label).x - parent.getDotsWidth(gc);
- // add indents, margins and image width
- dotStartX += getImageStopX(columnIndex);
- dotStartX += getTextIndent(columnIndex);
- }
- gc.dispose();
- }
- return dotStartX;
-}
-/**
- * Returns <code>true</code> if the receiver is grayed,
- * and false otherwise. When the parent does not have
- * the <code>CHECK style, return false.
- *
- * @return the grayed state
- *
- * @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 item image of the column identified by 'columnIndex' or
- * null if no image has been set for that column.
- *
- * @param columnIndex - the column whose image should be returned
- * @return the item image
- */
-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 checkboxBounds;
- 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);
- 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 += getParent().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 item tezt of the column identified by 'columnIndex',
- * or null if no text has been set for that column.
- *
- * @param columnIndex - the column whose text should be returned
- * @return the item text or null if no text has been set for that column.
- */
-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) {
- 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;
-}
-/**
- * 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);
-}
-/**
- * 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);
- }
- if (((Image) images.elementAt(columnIndex)) == null && image != null) {
- imageWasNull = true;
- }
- if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
- 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;
- int redrawStartX = 0;
- int redrawWidth = 0;
- int columnCount = parent.internalGetColumnCount();
-
- if (columnIndex >= 0 && columnIndex < columnCount && parent.getVisibleRedrawY(this) != -1) {
- changedColumnBounds = parent.internalGetColumn(columnIndex).getBounds();
- redrawStartX = Math.max(0, getImageBounds(columnIndex).x);
- if (parent.getImageExtent() != null && imageWasNull == false) {
- redrawWidth = getImageStopX(columnIndex);
- }
- else {
- redrawWidth = changedColumnBounds.width;
- }
- redrawWidth += changedColumnBounds.x - redrawStartX;
- }
- 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;
- }
- }
- 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);
-
- if (label != null && label.equals(oldLabel) == false) {
- setTrimmedText(label, columnIndex);
- selectionExtent = null; // force a recalculation next time the selection extent is needed
- }
- 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);
-}
-/**
- * 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);
- }
-}
-/**
- * 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;
- }
-}
-/**
- * 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 image indent.
- *
- * @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);
- }
-}
-/**
- * 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 receiver.
- *
- * @param checked the new checked state
- *
- * @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 receiver.
- *
- * @param checked the new grayed state
- *
- * @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;
-}
-
-}
\ No newline at end of file |