don't use dangling HBRUSH

[wxWidgets.git] / src / msw / radiobox.cpp

diff --git a/src/msw/radiobox.cpp b/src/msw/radiobox.cpp
index f4a4178a0e142db2ee266babe278019e61ed35b2..09abc323191c48ab4e5fede8800459c62514acb1 100644 (file)
--- a/src/msw/radiobox.cpp
+++ b/src/msw/radiobox.cpp
@@ -40,6 +40,11 @@
 
 #include "wx/msw/subwin.h"
 
+// This is switched off because in some situations, the radiobox
+// buttons simply don't appear when deferred sizing is on.
+// Instead, refreshing on WM_MOVE seems to at least cure the droppings.
+#define USE_DEFERRED_SIZING 0
+
 #if wxUSE_TOOLTIPS
     #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)
         #include <commctrl.h>
@@ -165,9 +170,6 @@ bool wxRadioBox::Create(wxWindow *parent,
     wxUnusedVar(val);
 #endif // wxUSE_VALIDATORS/!wxUSE_VALIDATORS
 
-    // and now create the buttons
-    HWND hwndParent = GetHwndOf(parent);
-
     m_radioButtons = new wxSubwindows(n);
     m_radioWidth = new int[n];
     m_radioHeight = new int[n];
@@ -177,7 +179,7 @@ bool wxRadioBox::Create(wxWindow *parent,
         m_radioWidth[i] =
         m_radioHeight[i] = wxDefaultCoord;
         long styleBtn = BS_AUTORADIOBUTTON | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
-        if ( i == 0 && style == 0 )
+        if ( i == 0 )
             styleBtn |= WS_GROUP;
 
         long newId = NewControlId();
@@ -186,7 +188,7 @@ bool wxRadioBox::Create(wxWindow *parent,
                                       choices[i],
                                       styleBtn,
                                       0, 0, 0, 0,   // will be set in SetSize()
-                                      hwndParent,
+                                      GetHwnd(),
                                       (HMENU)newId,
                                       wxGetInstance(),
                                       NULL);
@@ -209,7 +211,7 @@ bool wxRadioBox::Create(wxWindow *parent,
     (void)::CreateWindow(_T("BUTTON"),
                          wxEmptyString,
                          WS_GROUP | BS_AUTORADIOBUTTON | WS_CHILD,
-                         0, 0, 0, 0, hwndParent,
+                         0, 0, 0, 0, GetHwnd(),
                          (HMENU)NewControlId(), wxGetInstance(), NULL);
 
     m_radioButtons->SetFont(GetFont());
@@ -372,6 +374,8 @@ void wxRadioBox::SetString(int item, const wxString& label)
     m_radioHeight[item] = wxDefaultCoord;
 
     ::SetWindowText((*m_radioButtons)[item], label.c_str());
+
+    InvalidateBestSize();
 }
 
 void wxRadioBox::SetSelection(int N)
@@ -426,7 +430,10 @@ bool wxRadioBox::Show(int item, bool show)
 
     BOOL ret = ::ShowWindow((*m_radioButtons)[item], show ? SW_SHOW : SW_HIDE);
 
-    return (ret != 0) == show;
+    bool changed = (ret != 0) == show;
+    if( changed )
+        InvalidateBestSize();
+    return changed;
 }
 
 WX_FORWARD_STD_METHODS_TO_SUBWINDOWS(wxRadioBox, wxStaticBox, m_radioButtons)
@@ -496,7 +503,9 @@ wxSize wxRadioBox::GetTotalButtonSize(const wxSize& sizeBtn) const
 
 wxSize wxRadioBox::DoGetBestSize() const
 {
-    return GetTotalButtonSize(GetMaxButtonSize());
+    wxSize best = GetTotalButtonSize(GetMaxButtonSize());
+    CacheBestSize(best);
+    return best;
 }
 
 // Restored old code.
@@ -515,8 +524,8 @@ void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
     if (y == wxDefaultCoord && !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE))
         yy = currentY;
 
-    int y_offset = yy;
-    int x_offset = xx;
+    int y_offset = 0;
+    int x_offset = 0;
 
     int cx1, cy1;
     wxGetCharSize(m_hWnd, &cx1, &cy1, GetFont());
@@ -548,7 +557,17 @@ void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
             height = heightOld;
     }
 
-    ::MoveWindow(GetHwnd(), xx, yy, width, height, TRUE);
+    // if our parent had prepared a defer window handle for us, use it (unless
+    // we are a top level window)
+
+#if USE_DEFERRED_SIZING
+    wxWindowMSW *parent = GetParent();
+    HDWP hdwp = parent && !IsTopLevel() ? (HDWP)parent->m_hDWP : NULL;
+#else
+    HDWP hdwp = 0;
+#endif
+
+    wxMoveWindowDeferred(hdwp, this, GetHwnd(), xx, yy, width, height);
 
     // Now position all the buttons: the current button will be put at
     // wxPoint(x_offset, y_offset) and the new row/column will start at
@@ -645,8 +664,59 @@ void wxRadioBox::DoSetSize(int x, int y, int width, int height, int sizeFlags)
             x_offset += widthBtn + cx1;
         }
     }
+
+#if USE_DEFERRED_SIZING
+    if (parent)
+    {
+        // hdwp must be updated as it may have been changed
+        parent->m_hDWP = (WXHANDLE)hdwp;
+    }
+#endif
 }
 
+// ----------------------------------------------------------------------------
+// radio box drawing
+// ----------------------------------------------------------------------------
+
+#ifndef __WXWINCE__
+
+WXHRGN wxRadioBox::MSWGetRegionWithoutChildren()
+{
+    RECT rc;
+    ::GetWindowRect(GetHwnd(), &rc);
+    HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
+
+    const size_t count = GetCount();
+    for ( size_t i = 0; i < count; ++i )
+    {
+        ::GetWindowRect((*m_radioButtons)[i], &rc);
+        AutoHRGN hrgnchild(::CreateRectRgnIndirect(&rc));
+        ::CombineRgn(hrgn, hrgn, hrgnchild, RGN_DIFF);
+    }
+
+    return (WXHRGN)hrgn;
+}
+
+WXLRESULT
+wxRadioBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+{
+    // FIXME: Without this, the radiobox corrupts other controls as it moves
+    // in a dynamic layout. Refreshing causes flicker, but it's better than
+    // leaving droppings. Note that for some reason, wxStaticBox doesn't need
+    // this (perhaps because it has no real children?)
+    if ( nMsg == WM_MOVE )
+    {
+        WXLRESULT res = wxControl::MSWWindowProc(nMsg, wParam, lParam);
+        wxRect rect = GetRect();
+        GetParent()->Refresh(true, & rect);
+        return res;
+    }
+
+    return wxStaticBox::MSWWindowProc(nMsg, wParam, lParam);
+}
+
+#endif // __WXWINCE__
+
 // ---------------------------------------------------------------------------
 // window proc for radio buttons
 // ---------------------------------------------------------------------------
@@ -810,9 +880,8 @@ LRESULT APIENTRY _EXPORT wxRadioBtnWndProc(HWND hwnd,
 
                 if ( processed )
                     return 0;
-
-                break;
             }
+            break;
 #endif // !__WXWINCE__
     }