@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);
}
}
