Fix appearance of wxMSW wxToggleButtons with bitmaps in pressed state.

Correct the "pushed" state determination in our own drawn code, it didn't work
for wxToggleButton which doesn't return BST_PUSHED from BM_GETSTATE. But it
does have BM_GETCHECK returning its state directly, so add a new virtual
MSWIsPushed() method and implement it differently for it.

Closes #13755.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@78251 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -105,6 +105,7 @@ wxMSW:
 
 - Improve wxMimeTypesManager open command detection (Eric Jensen).
 - Make wxFILTER_INCLUDE_LIST in wxTextValidator actually usable.
+- Fix appearance of toggled wxToggleButtons with bitmap (tm).
 - Fix setting menu item bitmaps after appending them (Artur Wieczorek).
 - Fix setting label of submenu items (Artur Wieczorek).
 - Fix handling of selected images in wxBitmapButton (Artur Wieczorek).

include/wx/msw/anybutton.h

@@ -73,6 +73,8 @@ protected:
     void MakeOwnerDrawn();
     bool IsOwnerDrawn() const;
 
+    virtual bool MSWIsPushed() const;
+
 private:
     wxDECLARE_NO_COPY_CLASS(wxAnyButton);
 };

include/wx/msw/tglbtn.h

@@ -56,6 +56,8 @@ protected:
 
     virtual WXDWORD MSWGetStyle(long flags, WXDWORD *exstyle = NULL) const;
 
+    virtual bool MSWIsPushed() const;
+
     void Init();
 
     // current state of the button (when owner-drawn)

src/msw/anybutton.cpp

@@ -1204,6 +1204,11 @@ bool wxAnyButton::SetForegroundColour(const wxColour &colour)
     return true;
 }
 
+bool wxAnyButton::MSWIsPushed() const
+{
+    return (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
+}
+
 bool wxAnyButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
 {
     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
@@ -1225,7 +1230,7 @@ bool wxAnyButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
             break;
     }
 
-    bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
+    bool pushed = MSWIsPushed();
 
     RECT rectBtn;
     CopyRect(&rectBtn, &lpDIS->rcItem);

src/msw/tglbtn.cpp

@@ -135,6 +135,11 @@ WXDWORD wxToggleButton::MSWGetStyle(long style, WXDWORD *exstyle) const
     return msStyle;
 }
 
+bool wxToggleButton::MSWIsPushed() const
+{
+    return GetValue();
+}
+
 void wxToggleButton::SetValue(bool val)
 {
     m_state = val;