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
}
}
void createHandle(int index) {
state |= HANDLE;
fixedHandle = OS.g_object_new(display.gtk_fixed_get_type(), 0);
if (fixedHandle == 0) error(SWT.ERROR_NO_HANDLES);
gtk_widget_set_has_window(fixedHandle, true);
handle = OS.gtk_notebook_new();
if (handle == 0) error(SWT.ERROR_NO_HANDLES);
OS.gtk_container_add(fixedHandle, handle);
OS.gtk_notebook_set_scrollable(handle, true);
OS.gtk_notebook_set_show_tabs(handle, true);
if ((style & SWT.BOTTOM) != 0) {
OS.gtk_notebook_set_tab_pos(handle, OS.GTK_POS_BOTTOM);
}
}
@Override
void createHandle(int index) {
state |= HANDLE | THEME_BACKGROUND;
fixedHandle = OS.g_object_new(display.gtk_fixed_get_type(), 0);
if (fixedHandle == 0) error(SWT.ERROR_NO_HANDLES);
OS.gtk_widget_set_has_window(fixedHandle, true);
handle = OS.gtk_toolbar_new();
if (handle == 0) error(SWT.ERROR_NO_HANDLES);
OS.gtk_container_add(fixedHandle, handle);
if ((style & SWT.FLAT) != 0) {
byte[] swt_toolbar_flat = Converter.wcsToMbcs(null, "swt-toolbar-flat", true);
OS.gtk_widget_set_name(handle, swt_toolbar_flat);
}
/*
* Bug in GTK. For some reason, the toolbar style context does not read
* the CSS style sheet until the window containing the toolbar is shown.
* The fix is to call gtk_style_context_invalidate() which it seems to
* force the style sheet to be read.
*/
if (OS.GTK3) {
long /*int*/ context = OS.gtk_widget_get_style_context(handle);
String css = "GtkToolbar {padding-top: 4px; padding-bottom: 4px; }";
gtk_css_provider_load_from_css(context, css);
OS.gtk_style_context_invalidate(context);
}
/*
* Bug in GTK. GTK will segment fault if gtk_widget_reparent() is called
* on a tool bar or on a widget hierarchy containing a tool bar when the icon
* size is not GTK_ICON_SIZE_LARGE_TOOLBAR. The fix is to set the icon
* size to GTK_ICON_SIZE_LARGE_TOOLBAR.
*
* Note that the segmentation fault does not happen on GTK 3, but the
* tool bar preferred size is too big with GTK_ICON_SIZE_LARGE_TOOLBAR
* when the tool bar item has no image or text.
*/
OS.gtk_toolbar_set_icon_size(
handle, OS.GTK3 ? OS.GTK_ICON_SIZE_SMALL_TOOLBAR : OS.GTK_ICON_SIZE_LARGE_TOOLBAR);
// In GTK 3 font description is inherited from parent widget which is not how SWT has always
// worked,
// reset to default font to get the usual behavior
if (OS.GTK3) {
setFontDescription(defaultFont().handle);
}
}
void createHandle(int index) {
state |= HANDLE;
handle = OS.gtk_expander_new(null);
if (handle == 0) error(SWT.ERROR_NO_HANDLES);
clientHandle = OS.g_object_new(display.gtk_fixed_get_type(), 0);
if (clientHandle == 0) error(SWT.ERROR_NO_HANDLES);
OS.gtk_container_add(handle, clientHandle);
boxHandle = OS.gtk_hbox_new(false, 4);
if (boxHandle == 0) error(SWT.ERROR_NO_HANDLES);
labelHandle = OS.gtk_label_new(null);
if (labelHandle == 0) error(SWT.ERROR_NO_HANDLES);
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);
OS.gtk_expander_set_label_widget(handle, boxHandle);
OS.GTK_WIDGET_SET_FLAGS(handle, OS.GTK_CAN_FOCUS);
}