void setSelection(int index, boolean notify) {
if (index < 0) return;
int oldIndex = OS.gtk_notebook_get_current_page(handle);
if (oldIndex == index) return;
if (oldIndex != -1) {
TabItem item = items[oldIndex];
Control control = item.control;
if (control != null && !control.isDisposed()) {
control.setVisible(false);
}
}
OS.g_signal_handlers_block_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
OS.gtk_notebook_set_current_page(handle, index);
OS.g_signal_handlers_unblock_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
int newIndex = OS.gtk_notebook_get_current_page(handle);
if (newIndex != -1) {
TabItem item = items[newIndex];
Control control = item.control;
if (control != null && !control.isDisposed()) {
control.setBounds(getClientArea());
control.setVisible(true);
}
if (notify) {
Event event = new Event();
event.item = item;
sendSelectionEvent(SWT.Selection, event, true);
}
}
}
void destroyItem(TabItem item) {
int index = 0;
int itemCount = getItemCount();
while (index < itemCount) {
if (items[index] == item) break;
index++;
}
if (index == itemCount) error(SWT.ERROR_ITEM_NOT_REMOVED);
int oldIndex = OS.gtk_notebook_get_current_page(handle);
OS.g_signal_handlers_block_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
OS.gtk_notebook_remove_page(handle, index);
OS.g_signal_handlers_unblock_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
System.arraycopy(items, index + 1, items, index, --itemCount - index);
items[itemCount] = null;
if (index == oldIndex) {
int newIndex = OS.gtk_notebook_get_current_page(handle);
if (newIndex != -1) {
Control control = items[newIndex].getControl();
if (control != null && !control.isDisposed()) {
control.setBounds(getClientArea());
control.setVisible(true);
}
Event event = new Event();
event.item = items[newIndex];
sendSelectionEvent(SWT.Selection, event, true);
// the widget could be destroyed at this point
}
}
}
long /*int*/ gtk_switch_page(long /*int*/ widget, long /*int*/ page, long /*int*/ page_num) {
int index = OS.gtk_notebook_get_current_page(handle);
if (index != -1) {
Control control = items[index].getControl();
if (control != null && !control.isDisposed()) {
control.setVisible(false);
}
}
TabItem item = items[(int) /*64*/ page_num];
Control control = item.getControl();
if (control != null && !control.isDisposed()) {
control.setBounds(getClientArea());
control.setVisible(true);
}
Event event = new Event();
event.item = item;
sendSelectionEvent(SWT.Selection, event, false);
return 0;
}
/**
* Sets the control that is used to fill the bounds of the item when the item is a <code>SEPARATOR
* </code>.
*
* @param control the new control
* @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 ((style & SWT.SEPARATOR) == 0) return;
if (this.control == control) return;
this.control = control;
parent.relayout();
}
/**
* Sets the control that is shown when the item is expanded.
*
* @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 == control) return;
this.control = control;
if (control != null) {
control.setVisible(expanded);
}
parent.layoutItems(0, true);
}
int setBounds(int x, int y, int width, int height, boolean move, boolean resize) {
int result = super.setBounds(x, y, width, height, move, resize);
if ((result & RESIZED) != 0) {
int index = getSelectionIndex();
if (index != -1) {
TabItem item = items[index];
Control control = item.control;
if (control != null && !control.isDisposed()) {
control.setBounds(getClientArea());
}
}
}
return result;
}
void resizeControl() {
if (control != null && !control.isDisposed()) {
/*
* Set the size and location of the control
* separately to minimize flashing in the
* case where the control does not resize
* to the size that was requested. This
* case can occur when the control is a
* combo box.
*/
Rectangle itemRect = getBounds();
control.setSize(itemRect.width, itemRect.height);
OS.gtk_widget_set_size_request(handle, itemRect.width, itemRect.height);
Rectangle rect = control.getBounds();
rect.x = itemRect.x + (itemRect.width - rect.width) / 2;
rect.y = itemRect.y + (itemRect.height - rect.height) / 2;
control.setLocation(rect.x, rect.y);
}
}
void setBounds(int x, int y, int width, int height, boolean move, boolean size) {
redraw();
int headerHeight = parent.getBandHeight();
if (move) {
if (imageHeight > headerHeight) {
y += (imageHeight - headerHeight);
}
this.x = x;
this.y = y;
redraw();
}
if (size) {
this.width = width;
this.height = height;
redraw();
}
if (control != null && !control.isDisposed()) {
if (move) control.setLocation(x + BORDER, y + headerHeight);
if (size) control.setSize(Math.max(0, width - 2 * BORDER), Math.max(0, height - BORDER));
}
}
void resizeControl(int yScroll) {
if (control != null && !control.isDisposed()) {
boolean visible = OS.gtk_expander_get_expanded(handle);
if (visible) {
int x = OS.GTK_WIDGET_X(clientHandle);
int y = OS.GTK_WIDGET_Y(clientHandle);
if (x != -1 && y != -1) {
int width = OS.GTK_WIDGET_WIDTH(clientHandle);
int height = OS.GTK_WIDGET_HEIGHT(clientHandle);
int[] property = new int[1];
OS.gtk_widget_style_get(handle, OS.focus_line_width, property, 0);
y += property[0] * 2;
height -= property[0] * 2;
/*
* Feature in GTK. When the ExpandBar is resize too small the control
* shows up on top of the vertical scrollbar. This happen because the
* GtkExpander does not set the size of child smaller than the request
* size of its parent and because the control is not parented in the
* hierarchy of the GtkScrolledWindow.
* The fix is calculate the width ourselves when the scrollbar is visible.
*/
ScrollBar vBar = parent.verticalBar;
if (vBar != null) {
if (OS.GTK_WIDGET_VISIBLE(vBar.handle)) {
width =
OS.GTK_WIDGET_WIDTH(parent.scrolledHandle)
- parent.vScrollBarWidth()
- 2 * parent.spacing;
}
}
control.setBounds(x, y - yScroll, width, Math.max(0, height), true, true);
}
}
control.setVisible(visible);
}
}