for file load/save, always try wxImage first, fallback to pixbuf

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

diff --git a/src/msw/button.cpp b/src/msw/button.cpp
index 39845f6cbf316365bab2c0375386e46b58fa638c..67494356d6945d474ca012e5e00d19d34b62f29c 100644 (file)
--- a/src/msw/button.cpp
+++ b/src/msw/button.cpp
@@ -37,9 +37,9 @@
     #include "wx/dcscreen.h"
     #include "wx/dcclient.h"
     #include "wx/toplevel.h"
-    #include "wx/imaglist.h"
 #endif
 
+#include "wx/imaglist.h"
 #include "wx/stockitem.h"
 #include "wx/msw/private.h"
 #include "wx/msw/private/button.h"
@@ -423,7 +423,7 @@ void wxMSWButton::UpdateMultilineStyle(HWND hwnd, const wxString& label)
     // the control unless it already has new lines in its label)
     long styleOld = ::GetWindowLong(hwnd, GWL_STYLE),
          styleNew;
-    if ( label.find(_T('\n')) != wxString::npos )
+    if ( label.find(wxT('\n')) != wxString::npos )
         styleNew = styleOld | BS_MULTILINE;
     else
         styleNew = styleOld & ~BS_MULTILINE;
@@ -509,7 +509,7 @@ bool wxButton::Create(wxWindow *parent,
     //     value and the label is not set yet when MSWGetStyle() is called
     msStyle |= wxMSWButton::GetMultilineStyle(label);
 
-    return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle);
+    return MSWCreateControl(wxT("BUTTON"), msStyle, pos, size, label, exstyle);
 }
 
 wxButton::~wxButton()
@@ -574,8 +574,10 @@ wxSize wxButton::DoGetBestSize() const
 {
     wxSize size;
 
-    // account for the text part
-    if ( ShowsLabel() )
+    // account for the text part if we have it or if we don't have any image at
+    // all (buttons initially created with empty label should still have a non
+    // zero size)
+    if ( ShowsLabel() || !m_imageData )
     {
         size = wxMSWButton::ComputeBestSize(const_cast<wxButton *>(this));
     }
@@ -677,6 +679,14 @@ wxSize wxButtonBase::GetDefaultSize()
 // ----------------------------------------------------------------------------
 
 /*
+   The comment below and all this code is probably due to not using WM_NEXTDLGCTL
+   message when changing focus (but just SetFocus() which is not enough), see
+   http://blogs.msdn.com/oldnewthing/archive/2004/08/02/205624.aspx for the
+   full explanation.
+
+   TODO: Do use WM_NEXTDLGCTL and get rid of all this code.
+
+
    "Everything you ever wanted to know about the default buttons" or "Why do we
    have to do all this?"
 
@@ -743,10 +753,10 @@ static wxTopLevelWindow *GetTLWParentIfNotBeingDeleted(wxWindow *win)
         win = parent;
     }
 
-    wxASSERT_MSG( win, _T("button without top level parent?") );
+    wxASSERT_MSG( win, wxT("button without top level parent?") );
 
     wxTopLevelWindow * const tlw = wxDynamicCast(win, wxTopLevelWindow);
-    wxASSERT_MSG( tlw, _T("logic error in GetTLWParentIfNotBeingDeleted()") );
+    wxASSERT_MSG( tlw, wxT("logic error in GetTLWParentIfNotBeingDeleted()") );
 
     return tlw;
 }
@@ -798,7 +808,7 @@ wxButton::SetDefaultStyle(wxButton *btn, bool on)
             return;
 
         wxWindow * const tlw = wxGetTopLevelParent(btn);
-        wxCHECK_RET( tlw, _T("button without top level window?") );
+        wxCHECK_RET( tlw, wxT("button without top level window?") );
 
         ::SendMessage(GetHwndOf(tlw), DM_SETDEFID, btn->GetId(), 0L);
 
@@ -959,16 +969,18 @@ void wxButton::DoSetBitmap(const wxBitmap& bitmap, State which)
             m_imageData = new wxODButtonImageData(this, bitmap);
             MakeOwnerDrawn();
         }
-
-        // if a bitmap was assigned to the bitmap, its best size must be
-        // changed to account for it
-        InvalidateBestSize();
     }
     else
     {
         m_imageData->SetBitmap(bitmap, which);
     }
 
+    // it should be enough to only invalidate the best size when the normal
+    // bitmap changes as all bitmaps assigned to the button should be of the
+    // same size anyhow
+    if ( which == State_Normal )
+        InvalidateBestSize();
+
     Refresh();
 }
 
@@ -1030,7 +1042,7 @@ void DrawButtonText(HDC hdc,
     // center text horizontally in any case
     flags |= DT_CENTER;
 
-    if ( text.find(_T('\n')) != wxString::npos )
+    if ( text.find(wxT('\n')) != wxString::npos )
     {
         // draw multiline label