+// Try to find the deepest child that contains 'pt'.
+// We go backwards, to try to allow for controls that are spacially
+// within other controls, but are still siblings (e.g. buttons within
+// static boxes). Static boxes are likely to be created _before_ controls
+// that sit inside them.
+wxWindow* wxFindWindowAtPoint(wxWindow* win, const wxPoint& pt)
+{
+ if (!win->IsShown())
+ return NULL;
+
+ // Hack for wxNotebook case: at least in wxGTK, all pages
+ // claim to be shown, so we must only deal with the selected one.
+ if (win->IsKindOf(CLASSINFO(wxNotebook)))
+ {
+ wxNotebook* nb = (wxNotebook*) win;
+ int sel = nb->GetSelection();
+ if (sel >= 0)
+ {
+ wxWindow* child = nb->GetPage(sel);
+ wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
+ if (foundWin)
+ return foundWin;
+ }
+ }
+ /* Doesn't work
+ // Frame case
+ else if (win->IsKindOf(CLASSINFO(wxFrame)))
+ {
+ // Pseudo-children that may not be mentioned in the child list
+ wxWindowList extraChildren;
+ wxFrame* frame = (wxFrame*) win;
+ if (frame->GetStatusBar())
+ extraChildren.Append(frame->GetStatusBar());
+ if (frame->GetToolBar())
+ extraChildren.Append(frame->GetToolBar());
+
+ wxNode* node = extraChildren.First();
+ while (node)
+ {
+ wxWindow* child = (wxWindow*) node->Data();
+ wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
+ if (foundWin)
+ return foundWin;
+ node = node->Next();
+ }
+ }
+ */
+
+ wxNode* node = win->GetChildren().Last();
+ while (node)
+ {
+ wxWindow* child = (wxWindow*) node->Data();
+ wxWindow* foundWin = wxFindWindowAtPoint(child, pt);
+ if (foundWin)
+ return foundWin;
+ node = node->Previous();
+ }
+
+ wxPoint pos = win->GetPosition();
+ wxSize sz = win->GetSize();
+ if (win->GetParent())
+ {
+ pos = win->GetParent()->ClientToScreen(pos);
+ }
+
+ wxRect rect(pos, sz);
+ if (rect.Inside(pt))
+ return win;
+ else
+ return NULL;
+}
+
+wxWindow* wxGenericFindWindowAtPoint(const wxPoint& pt)
+{
+ // Go backwards through the list since windows
+ // on top are likely to have been appended most
+ // recently.
+ wxNode* node = wxTopLevelWindows.Last();
+ while (node)
+ {
+ wxWindow* win = (wxWindow*) node->Data();
+ wxWindow* found = wxFindWindowAtPoint(win, pt);
+ if (found)
+ return found;
+ node = node->Previous();
+ }
+ return NULL;
+}
+
+#endif // wxUSE_GUI
+
projects / wxWidgets.git / blobdiff