Add functions for getting current ribbon tool rectangle

wxRibbonButtonBar::GetItemRect() and wxRibbonToolBar::GetActiveTool()
are helpful for positioning other windows (e.g. popup ones) that should
be aligned to tools and buttons in the ribbon bar.

Closes #22329.

src/ribbon/buttonbar.cpp

@@ -1508,6 +1508,29 @@ int wxRibbonButtonBar::GetItemId(wxRibbonButtonBarButtonBase *item) const
     return item->id;
 }
 
+wxRect wxRibbonButtonBar::GetItemRect(int button_id)const
+{
+    wxRibbonButtonBarLayout* layout = m_layouts.Item(m_current_layout);
+    size_t btn_count = layout->buttons.Count();
+    size_t btn_i;
+
+    for (btn_i = 0; btn_i < btn_count; ++btn_i)
+    {
+        wxRibbonButtonBarButtonInstance& instance = layout->buttons.Item(btn_i);
+        wxRibbonButtonBarButtonBase* button = instance.base;
+
+        if (button->id == button_id)
+        {
+            wxRibbonButtonBarButtonSizeInfo& size = button->sizes[instance.size];
+            wxRect btn_rect;
+            btn_rect.SetTopLeft(m_layout_offset + instance.position);
+            btn_rect.SetSize(size.size);
+
+            return btn_rect;
+        }
+    }
+    return wxRect();
+}
 
 bool wxRibbonButtonBarEvent::PopupMenu(wxMenu* menu)
 {

src/ribbon/toolbar.cpp

@@ -470,6 +470,11 @@ int wxRibbonToolBar::GetToolId(const wxRibbonToolBarToolBase* tool)const
     return tool->id;
 }
 
+wxRibbonToolBarToolBase* wxRibbonToolBar::GetActiveTool() const
+{
+    return m_active_tool == NULL ? NULL : m_active_tool;
+}
+
 wxObject* wxRibbonToolBar::GetToolClientData(int tool_id)const
 {
     wxRibbonToolBarToolBase* tool = FindById(tool_id);