Point minimumSize(int wHint, int hHint, boolean flushCache) {
Control[] children = _getChildren();
int width = 0, height = 0;
for (int i = 0; i < children.length; i++) {
Control child = children[i];
int index = 0;
int count = 0;
long /*int*/ list = OS.gtk_container_get_children(handle);
if (list != 0) {
count = OS.g_list_length(list);
OS.g_list_free(list);
}
while (index < count) {
if (items[index].control == child) break;
index++;
}
if (index == count) {
Rectangle rect = child.getBounds();
width = Math.max(width, rect.x + rect.width);
height = Math.max(height, rect.y + rect.height);
} else {
Point size = child.computeSize(wHint, hHint, flushCache);
width = Math.max(width, size.x);
height = Math.max(height, size.y);
}
}
return new Point(width, height);
}
/**
* Returns the number of items contained in the receiver.
*
* @return the number of items
* @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 int getItemCount() {
checkWidget();
long /*int*/ list = OS.gtk_container_get_children(handle);
if (list == 0) return 0;
int itemCount = OS.g_list_length(list);
OS.g_list_free(list);
return itemCount;
}
void createItem(TabItem item, int index) {
long /*int*/ list = OS.gtk_container_get_children(handle);
int itemCount = 0;
if (list != 0) {
itemCount = OS.g_list_length(list);
OS.g_list_free(list);
}
if (!(0 <= index && index <= itemCount)) error(SWT.ERROR_INVALID_RANGE);
if (itemCount == items.length) {
TabItem[] newItems = new TabItem[items.length + 4];
System.arraycopy(items, 0, newItems, 0, items.length);
items = newItems;
}
long /*int*/ boxHandle = gtk_box_new(OS.GTK_ORIENTATION_HORIZONTAL, false, 0);
if (boxHandle == 0) error(SWT.ERROR_NO_HANDLES);
long /*int*/ labelHandle = OS.gtk_label_new_with_mnemonic(null);
if (labelHandle == 0) error(SWT.ERROR_NO_HANDLES);
long /*int*/ imageHandle = OS.gtk_image_new();
if (imageHandle == 0) error(SWT.ERROR_NO_HANDLES);
OS.gtk_container_add(boxHandle, imageHandle);
OS.gtk_container_add(boxHandle, labelHandle);
long /*int*/ pageHandle = OS.g_object_new(display.gtk_fixed_get_type(), 0);
if (pageHandle == 0) error(SWT.ERROR_NO_HANDLES);
if (OS.GTK3) {
OS.gtk_widget_override_background_color(pageHandle, OS.GTK_STATE_FLAG_NORMAL, new GdkRGBA());
long /*int*/ region = OS.gdk_region_new();
OS.gtk_widget_input_shape_combine_region(pageHandle, region);
OS.gdk_region_destroy(region);
}
OS.g_signal_handlers_block_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
OS.gtk_notebook_insert_page(handle, pageHandle, boxHandle, index);
OS.g_signal_handlers_unblock_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
OS.gtk_widget_show(boxHandle);
OS.gtk_widget_show(labelHandle);
OS.gtk_widget_show(pageHandle);
item.state |= HANDLE;
item.handle = boxHandle;
item.labelHandle = labelHandle;
item.imageHandle = imageHandle;
item.pageHandle = pageHandle;
System.arraycopy(items, index, items, index + 1, itemCount++ - index);
items[index] = item;
if ((state & FOREGROUND) != 0) {
item.setForegroundColor(getForegroundColor());
}
if ((state & FONT) != 0) {
item.setFontDescription(getFontDescription());
}
if (itemCount == 1) {
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, 0);
OS.g_signal_handlers_unblock_matched(handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, SWITCH_PAGE);
Event event = new Event();
event.item = items[0];
sendSelectionEvent(SWT.Selection, event, false);
// the widget could be destroyed at this point
}
}
/**
* Returns the item at the given, zero-relative index in the receiver. Throws an exception if the
* index is out of range.
*
* @param index the index of the item to return
* @return the item at the given index
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the
* list minus 1 (inclusive)
* </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 TabItem getItem(int index) {
checkWidget();
if (!(0 <= index && index < getItemCount())) error(SWT.ERROR_INVALID_RANGE);
long /*int*/ list = OS.gtk_container_get_children(handle);
if (list == 0) error(SWT.ERROR_CANNOT_GET_ITEM);
int itemCount = OS.g_list_length(list);
OS.g_list_free(list);
if (!(0 <= index && index < itemCount)) error(SWT.ERROR_CANNOT_GET_ITEM);
return items[index];
}
/**
* Searches the receiver's list starting at the first item (index 0) until an item is found that
* is equal to the argument, and returns the index of that item. If no item is found, returns -1.
*
* @param item the search item
* @return the index of the item
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the item is null
* </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 int indexOf(TabItem item) {
checkWidget();
if (item == null) error(SWT.ERROR_NULL_ARGUMENT);
long /*int*/ list = OS.gtk_container_get_children(handle);
if (list == 0) return -1;
int count = OS.g_list_length(list);
OS.g_list_free(list);
for (int i = 0; i < count; i++) {
if (items[i] == item) return i;
}
return -1;
}
void reskinChildren(int flags) {
if (items != null) {
long /*int*/ list = OS.gtk_container_get_children(handle);
if (list != 0) {
int count = OS.g_list_length(list);
OS.g_list_free(list);
for (int i = 0; i < count; i++) {
TabItem item = items[i];
if (item != null) item.reskin(flags);
}
}
}
super.reskinChildren(flags);
}
/**
* Returns the tab item at the given point in the receiver or null if no such item exists. The
* point is in the coordinate system of the receiver.
*
* @param point the point used to locate the item
* @return the tab item at the given point, or null if the point is not in a tab item
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the point is null
* </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>
*
* @since 3.4
*/
public TabItem getItem(Point point) {
checkWidget();
if (point == null) error(SWT.ERROR_NULL_ARGUMENT);
long /*int*/ list = OS.gtk_container_get_children(handle);
if (list == 0) return null;
int itemCount = OS.g_list_length(list);
OS.g_list_free(list);
for (int i = 0; i < itemCount; i++) {
TabItem item = items[i];
Rectangle rect = item.getBounds();
if (rect.contains(point)) return item;
}
return null;
}
ToolItem[] _getItems() {
long /*int*/ list = OS.gtk_container_get_children(handle);
if (list == 0) return new ToolItem[0];
int count = OS.g_list_length(list);
ToolItem[] items = new ToolItem[count];
long /*int*/ originalList = list;
int index = 0;
for (int i = 0; i < count; i++) {
long /*int*/ data = OS.g_list_data(list);
Widget widget = display.getWidget(data);
if (widget != null) items[index++] = (ToolItem) widget;
list = OS.g_list_next(list);
}
OS.g_list_free(originalList);
if (index != items.length) {
ToolItem[] newItems = new ToolItem[index];
System.arraycopy(items, 0, newItems, 0, index);
items = newItems;
}
return items;
}
Image getDragSourceImage(DragSourceEvent event) {
if (dragSourceImage != null) dragSourceImage.dispose();
dragSourceImage = null;
Table table = (Table) control;
if (OS.GTK_VERSION < OS.VERSION(2, 2, 0)) return null;
// TEMPORARY CODE
if (table.isListening(SWT.EraseItem) || table.isListening(SWT.PaintItem)) return null;
/*
* Bug in GTK. gtk_tree_selection_get_selected_rows() segmentation faults
* in versions smaller than 2.2.4 if the model is NULL. The fix is
* to give a valid pointer instead.
*/
long /*int*/ handle = table.handle;
long /*int*/ selection = OS.gtk_tree_view_get_selection(handle);
long /*int*/[] model = OS.GTK_VERSION < OS.VERSION(2, 2, 4) ? new long /*int*/[1] : null;
long /*int*/ list = OS.gtk_tree_selection_get_selected_rows(selection, model);
if (list == 0) return null;
int count = Math.min(10, OS.g_list_length(list));
Display display = table.getDisplay();
if (count == 1) {
long /*int*/ path = OS.g_list_nth_data(list, 0);
long /*int*/ pixmap = OS.gtk_tree_view_create_row_drag_icon(handle, path);
dragSourceImage = Image.gtk_new(display, SWT.ICON, pixmap, 0);
} else {
int width = 0, height = 0;
int[] w = new int[1], h = new int[1];
int[] yy = new int[count], hh = new int[count];
long /*int*/[] pixmaps = new long /*int*/[count];
GdkRectangle rect = new GdkRectangle();
for (int i = 0; i < count; i++) {
long /*int*/ path = OS.g_list_nth_data(list, i);
OS.gtk_tree_view_get_cell_area(handle, path, 0, rect);
pixmaps[i] = OS.gtk_tree_view_create_row_drag_icon(handle, path);
OS.gdk_drawable_get_size(pixmaps[i], w, h);
width = Math.max(width, w[0]);
height = rect.y + h[0] - yy[0];
yy[i] = rect.y;
hh[i] = h[0];
}
long /*int*/ source = OS.gdk_pixmap_new(OS.GDK_ROOT_PARENT(), width, height, -1);
long /*int*/ gcSource = OS.gdk_gc_new(source);
long /*int*/ mask = OS.gdk_pixmap_new(OS.GDK_ROOT_PARENT(), width, height, 1);
long /*int*/ gcMask = OS.gdk_gc_new(mask);
GdkColor color = new GdkColor();
color.pixel = 0;
OS.gdk_gc_set_foreground(gcMask, color);
OS.gdk_draw_rectangle(mask, gcMask, 1, 0, 0, width, height);
color.pixel = 1;
OS.gdk_gc_set_foreground(gcMask, color);
for (int i = 0; i < count; i++) {
OS.gdk_draw_drawable(source, gcSource, pixmaps[i], 0, 0, 0, yy[i] - yy[0], -1, -1);
OS.gdk_draw_rectangle(mask, gcMask, 1, 0, yy[i] - yy[0], width, hh[i]);
OS.g_object_unref(pixmaps[i]);
}
OS.g_object_unref(gcSource);
OS.g_object_unref(gcMask);
dragSourceImage = Image.gtk_new(display, SWT.ICON, source, mask);
}
OS.g_list_free(list);
return dragSourceImage;
}
