X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e721a2a2a41393346e0c86965cfd04f056196c2a..15cac64f7564d48c274c6490774a77bd8c09f808:/src/msw/headerctrl.cpp

diff --git a/src/msw/headerctrl.cpp b/src/msw/headerctrl.cpp
index 21d83f6388..c4beb2534d 100644
--- a/src/msw/headerctrl.cpp
+++ b/src/msw/headerctrl.cpp
@@ -26,6 +26,7 @@
 #if wxUSE_HEADERCTRL
 
 #ifndef WX_PRECOMP
+    #include "wx/app.h"
     #include "wx/log.h"
 #endif // WX_PRECOMP
 
@@ -38,6 +39,15 @@
 #include "wx/msw/wrapcctl.h"
 #include "wx/msw/private.h"
 
+#ifndef HDM_SETBITMAPMARGIN
+    #define HDM_SETBITMAPMARGIN 0x1234
+#endif
+
+#ifndef Header_SetBitmapMargin
+    #define Header_SetBitmapMargin(hwnd, margin) \
+            ::SendMessage((hwnd), HDM_SETBITMAPMARGIN, (WPARAM)(margin), 0)
+#endif
+
 // from src/msw/listctrl.cpp
 extern int WXDLLIMPEXP_CORE wxMSWGetColumnClicked(NMHDR *nmhdr, POINT *ptClick);
 
@@ -73,6 +83,16 @@ bool wxHeaderCtrl::Create(wxWindow *parent,
     if ( !MSWCreateControl(WC_HEADER, _T(""), pos, size) )
         return false;
 
+    // special hack for margins when using comctl32.dll v6 or later: the
+    // default margin is too big and results in label truncation when the
+    // column width is just about right to show it together with the sort
+    // indicator, so reduce it to a smaller value (in principle we could even
+    // use 0 here but this starts to look ugly)
+    if ( wxApp::GetComCtl32Version() >= 600 )
+    {
+        Header_SetBitmapMargin(GetHwnd(), ::GetSystemMetrics(SM_CXEDGE));
+    }
+
     return true;
 }
 
@@ -287,7 +307,7 @@ void wxHeaderCtrl::DoInsertItem(const wxHeaderColumn& col, unsigned int idx)
 
     if ( col.GetAlignment() != wxALIGN_NOT )
     {
-        hdi.mask |= HDI_FORMAT;
+        hdi.mask |= HDI_FORMAT | HDF_LEFT;
         switch ( col.GetAlignment() )
         {
             case wxALIGN_LEFT: