Ensure there is valid context for DrawRectangle

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

diff --git a/src/msw/textctrl.cpp b/src/msw/textctrl.cpp
index 4dbf35d08ea9d8f2580012eae8145a12666011da..930b37cd6d61982426c3acc92e7db14a4eeb95a3 100644 (file)
--- a/src/msw/textctrl.cpp
+++ b/src/msw/textctrl.cpp
@@ -64,10 +64,6 @@
 
 #if wxUSE_RICHEDIT
 
-#if wxUSE_INKEDIT
-#include "wx/dynlib.h"
-#endif
-
 // old mingw32 has richedit stuff directly in windows.h and doesn't have
 // richedit.h at all
 #if !defined(__GNUWIN32_OLD__) || defined(__CYGWIN10__)
@@ -78,6 +74,11 @@
 
 #include "wx/msw/missing.h"
 
+// FIXME-VC6: This seems to be only missing from VC6 headers.
+#ifndef SPI_GETCARETWIDTH
+    #define SPI_GETCARETWIDTH 0x2006
+#endif
+
 #if wxUSE_DRAG_AND_DROP && wxUSE_RICHEDIT
 
 // dummy value used for m_dropTarget, different from any valid pointer value
@@ -498,7 +499,37 @@ bool wxTextCtrl::MSWCreateText(const wxString& value,
     SetWindowPos(GetHwnd(), NULL, 0, 0, 0, 0,
                 SWP_NOZORDER|SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE|
                 SWP_FRAMECHANGED);
-#endif
+
+    if ( IsSingleLine() )
+    {
+        // If we don't set the margins explicitly, their size depends on the
+        // control initial size, see #2438. So explicitly set them to something
+        // consistent. And for this we have 2 candidates: EC_USEFONTINFO (which
+        // sets the left margin to 3 pixels, at least under Windows 7) or 0. We
+        // use the former because it looks like it was meant to be used as the
+        // default (what else would it be there for?) and 0 looks bad in
+        // classic mode, i.e. without themes. Also, the margin can be reset to
+        // 0 easily by calling SetMargins() explicitly but setting it to the
+        // default value is not currently supported.
+        //
+        // Finally, notice that EC_USEFONTINFO is used differently for plain
+        // and rich text controls.
+        WPARAM wParam;
+        LPARAM lParam;
+        if ( IsRich() )
+        {
+            wParam = EC_USEFONTINFO;
+            lParam = 0;
+        }
+        else // plain EDIT, EC_USEFONTINFO is used in lParam with them.
+        {
+            wParam = EC_LEFTMARGIN | EC_RIGHTMARGIN;
+            lParam = MAKELPARAM(EC_USEFONTINFO, EC_USEFONTINFO);
+        }
+
+        ::SendMessage(GetHwnd(), EM_SETMARGINS, wParam, lParam);
+    }
+#endif // !__WXWINCE__
 
     return true;
 }
@@ -992,7 +1023,7 @@ wxTextCtrl::StreamOut(wxFontEncoding encoding, bool selectionOnly) const
 
     EDITSTREAM eds;
     wxZeroMemory(eds);
-    eds.dwCookie = (DWORD)&data;
+    eds.dwCookie = (DWORD_PTR)&data;
     eds.pfnCallback = wxRichEditStreamOut;
 
     ::SendMessage