wxExecute may only be called from the main thread

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

diff --git a/src/msw/combobox.cpp b/src/msw/combobox.cpp
index 470a02654cf462dea87c1b646d1ce77d7376305e..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"
@@ -87,20 +89,33 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
 
     switch ( message )
     {
-        // forward some messages to the combobox
+        // forward some messages to the combobox to generate the appropriate
+        // wxEvents from them
         case WM_KEYUP:
         case WM_KEYDOWN:
         case WM_CHAR:
+        case WM_SETFOCUS:
+        case WM_KILLFOCUS:
             {
                 wxComboBox *combo = wxDynamicCast(win, wxComboBox);
-                wxCHECK_MSG( combo, 0, _T("should have combo as parent") );
-
-                if ( combo->MSWProcessEditMsg(message, wParam, lParam) )
+                if ( !combo )
+                {
+                    // we can get WM_KILLFOCUS while our parent is already half
+                    // destroyed and hence doesn't look like a combobx any
+                    // longer, check for it to avoid bogus assert failures
+                    if ( !win->IsBeingDeleted() )
+                    {
+                        wxFAIL_MSG( _T("should have combo as parent") );
+                    }
+                }
+                else if ( combo->MSWProcessEditMsg(message, wParam, lParam) )
+                {
+                    // handled by parent
                     return 0;
+                }
             }
             break;
 
-#if 0
         case WM_GETDLGCODE:
             {
                 wxCHECK_MSG( win, 0, _T("should have a parent") );
@@ -112,7 +127,6 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
                 }
             }
             break;
-#endif // 0
 
         // deal with tooltips here
 #if wxUSE_TOOLTIPS && defined(TTN_NEEDTEXT)
@@ -121,7 +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 )
@@ -170,7 +184,7 @@ WXHBRUSH wxComboBox::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSE
     wxColour colBack = GetBackgroundColour();
 
     if (!IsEnabled())
-        colBack = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
+        colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
 
     ::SetBkColor(hdc, wxColourToRGB(colBack));
     ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
@@ -189,6 +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:
@@ -196,6 +221,12 @@ bool wxComboBox::MSWProcessEditMsg(WXUINT msg, WXWPARAM wParam, WXLPARAM lParam)
 
         case WM_KEYUP:
             return HandleKeyUp(wParam, lParam);
+
+        case WM_SETFOCUS:
+            return HandleSetFocus((WXHWND)wParam);
+
+        case WM_KILLFOCUS:
+            return HandleKillFocus((WXHWND)wParam);
     }
 
     return FALSE;
@@ -286,6 +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;
@@ -311,11 +347,9 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
     if ( !MSWCreateControl(_T("COMBOBOX"), msStyle) )
         return FALSE;
 
-    SetSize(pos.x, pos.y, size.x, size.y);
-
     // A choice/combobox normally has a white background (or other, depending
     // on global settings) rather than inheriting the parent's background colour.
-    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW));
+    SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
 
     for ( int i = 0; i < n; i++ )
     {
@@ -327,6 +361,10 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
         SetValue(value);
     }
 
+    // do this after appending the values to the combobox so that autosizing
+    // works correctly
+    SetSize(pos.x, pos.y, size.x, size.y);
+
     // a (not read only) combobox is, in fact, 2 controls: the combobox itself
     // and an edit control inside it and if we want to catch events from this
     // edit control, we must subclass it as well
@@ -340,61 +378,34 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
                                       );
     }
 
+    // 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))