public void setImage(Image image) {
checkWidget();
int index = parent.indexOf(this);
if (index > -1) {
super.setImage(image);
}
}
/**
* Sets the control that is used to fill the client area of the tab folder when the user selects
* the tab item.
*
* <p>
*
* @param control the new control (or null)
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_INVALID_ARGUMENT - if the control has been disposed
* <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*/
public void setControl(Control control) {
checkWidget();
if (control != null) {
if (control.isDisposed()) {
error(SWT.ERROR_INVALID_ARGUMENT);
}
if (control.parent != parent) {
error(SWT.ERROR_INVALID_PARENT);
}
}
if (this.control != null && this.control.isDisposed()) {
this.control = null;
}
Control oldControl = this.control;
Control newControl = control;
this.control = control;
int index = parent.indexOf(this);
if (index != parent.getSelectionIndex()) {
if (newControl != null) {
newControl.setVisible(false);
}
} else {
if (newControl != null) {
newControl.setBounds(parent.getClientArea());
newControl.setVisible(true);
}
if (oldControl != null) {
oldControl.setVisible(false);
}
}
}
/**
* Returns a rectangle describing the receiver's size and location relative to its parent.
*
* @return the receiver's bounding rectangle
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*
* @since 1.3
*/
public Rectangle getBounds() {
checkWidget();
Rectangle result = new Rectangle(0, 0, 0, 0);
int index = parent.indexOf(this);
if (index != -1) {
int selectionIndex = parent.getSelectionIndex();
boolean selected = index == selectionIndex;
Rectangle padding = parent.getItemPadding(selected);
String text = getText();
if (text != null) {
Point extent = Graphics.stringExtent(parent.getFont(), text);
result.width = extent.x;
result.height = extent.y;
}
Image image = getImage();
if (image != null) {
Rectangle imageSize = image.getBounds();
result.width += imageSize.width + IMAGE_TEXT_SPACING;
result.height = Math.max(result.height, imageSize.height);
}
result.width += 2 * ITEM_BORDER + padding.width;
result.height += ITEM_BORDER + padding.height;
if (selected) {
result.height += SELECTED_ITEM_BORDER;
}
if (selectionIndex != -1) {
if (index + 1 == selectionIndex || index - 1 == selectionIndex) {
result.width -= ITEM_BORDER;
}
}
if (isBarTop()) {
if (index != selectionIndex) {
result.y += SELECTED_ITEM_BORDER;
}
} else {
result.y = parent.getBounds().height - 2 * parent.getBorderWidth() - result.height;
if (index != selectionIndex) {
result.y -= SELECTED_ITEM_BORDER;
}
}
if (index > 0) {
TabItem leftItem = parent.getItem(index - 1);
Rectangle leftItemBounds = leftItem.getBounds();
result.x = leftItemBounds.x + leftItemBounds.width + TABS_SPACING;
if (index == selectionIndex || index - 1 == selectionIndex) {
result.x -= TABS_SPACING;
}
}
}
return result;
}
