Clean up memory if have to exit early

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

diff --git a/src/msw/combobox.cpp b/src/msw/combobox.cpp
index 7b65a4701d6aa952fd1b199d01e869758e19f470..4acd9c73bd1355292ea2d4dcc3ea52ad7ab1fb4d 100644 (file)
--- a/src/msw/combobox.cpp
+++ b/src/msw/combobox.cpp
@@ -33,6 +33,8 @@
 #ifndef WX_PRECOMP
     #include "wx/settings.h"
     #include "wx/log.h"
+    // for wxEVT_COMMAND_TEXT_ENTER
+    #include "wx/textctrl.h"
 #endif
 
 #include "wx/combobox.h"
@@ -133,7 +135,7 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
                 wxCHECK_MSG( win, 0, _T("should have a parent") );
 
                 NMHDR* hdr = (NMHDR *)lParam;
-                if ( (int)hdr->code == TTN_NEEDTEXT )
+                if ( hdr->code == TTN_NEEDTEXT )
                 {
                     wxToolTip *tooltip = win->GetToolTip();
                     if ( tooltip )
@@ -201,6 +203,17 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
     switch ( msg )
     {
         case WM_CHAR:
+            // for compatibility with wxTextCtrl, generate a special message
+            // when Enter is pressed
+            if ( wParam == VK_RETURN )
+            {
+                wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
+                InitCommandEvent(event);
+                event.SetString(GetValue());
+                event.SetInt(GetSelection());
+                ProcessCommand(event);
+            }
+
             return HandleChar(wParam, lParam, TRUE /* isASCII */);
 
         case WM_KEYDOWN:
@@ -304,6 +317,11 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
                         const wxValidator& validator,
                         const wxString& name)
 {
+    // pretend that wxComboBox is hidden while it is positioned and resized and
+    // show it only right before leaving this method because otherwise there is
+    // some noticeable flicker while the control rearranges itself
+    m_isShown = FALSE;
+
     // first create wxWin object
     if ( !CreateControl(parent, id, pos, size, style, validator, name) )
         return FALSE;
@@ -326,7 +344,7 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
 
 
     // and now create the MSW control
-    if ( !MSWCreateControl(_T("COMBOBOX"), msStyle, pos, size, wxEmptyString, (WXDWORD)-1, false) )
+    if ( !MSWCreateControl(_T("COMBOBOX"), msStyle) )
         return FALSE;
 
     // A choice/combobox normally has a white background (or other, depending
@@ -360,64 +378,34 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
                                       );
     }
 
-    // finally, show the combo box
-    Show(true);
+    // and finally, show the control
+    Show(TRUE);
 
     return TRUE;
 }
 
-// TODO: update and clear all this horrible mess (VZ)
-
 void wxComboBox::SetValue(const wxString& value)
 {
-  // If newlines are denoted by just 10, must stick 13 in front.
-  int singletons = 0;
-  int len = value.Length();
-  int i;
-  for (i = 0; i < len; i ++)
-  {
-    if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
-      singletons ++;
-  }
-  if (singletons > 0)
-  {
-    wxChar *tmp = new wxChar[len + singletons + 1];
-    int j = 0;
-    for (i = 0; i < len; i ++)
-    {
-      if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
-      {
-        tmp[j] = 13;
-        j ++;
-      }
-      tmp[j] = value[i];
-      j ++;
-    }
-    tmp[j] = 0;
-    SetWindowText(GetHwnd(), tmp);
-    delete[] tmp;
-  }
-  else
-    SetWindowText(GetHwnd(), value);
+    if ( HasFlag(wxCB_READONLY) )
+        SetStringSelection(value);
+    else
+        SetWindowText(GetHwnd(), value.c_str());
 }
 
 // Clipboard operations
 void wxComboBox::Copy()
 {
-  HWND hWnd = GetHwnd();
-  SendMessage(hWnd, WM_COPY, 0, 0L);
+  SendMessage(GetHwnd(), WM_COPY, 0, 0L);
 }
 
 void wxComboBox::Cut()
 {
-  HWND hWnd = GetHwnd();
-  SendMessage(hWnd, WM_CUT, 0, 0L);
+  SendMessage(GetHwnd(), WM_CUT, 0, 0L);
 }
 
 void wxComboBox::Paste()
 {
-  HWND hWnd = GetHwnd();
-  SendMessage(hWnd, WM_PASTE, 0, 0L);
+  SendMessage(GetHwnd(), WM_PASTE, 0, 0L);
 }
 
 void wxComboBox::SetEditable(bool WXUNUSED(editable))