X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7ba166dd9e0df474d1cd56cd5ffa89d67488ee19..011a524e9e60a28719f34b1f78d40e35a08a41a8:/src/msw/combobox.cpp

diff --git a/src/msw/combobox.cpp b/src/msw/combobox.cpp
index c5368a57d1..283eab16ac 100644
--- a/src/msw/combobox.cpp
+++ b/src/msw/combobox.cpp
@@ -87,20 +87,33 @@ 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 +125,6 @@ LRESULT APIENTRY _EXPORT wxComboEditWndProc(HWND hWnd,
                 }
             }
             break;
-#endif // 0
 
         // deal with tooltips here
 #if wxUSE_TOOLTIPS && defined(TTN_NEEDTEXT)
@@ -170,7 +182,7 @@ 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()));
@@ -196,6 +208,12 @@ 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;
@@ -231,11 +249,22 @@ bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
         case CBN_EDITCHANGE:
             {
                 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
+
                 // if sel != -1, value was initialized above (and we can't use
                 // GetValue() here as it would return the old selection and we
                 // want the new one)
                 if ( sel == -1 )
+                {
                     value = GetValue();
+                }
+                else // we're synthesizing text updated event from sel change
+                {
+                    // we need to do this because the user code expects
+                    // wxComboBox::GetValue() to return the new value from
+                    // "text updated" handler but it hadn't been updated yet
+                    SetValue(value);
+                }
+
                 event.SetString(value);
                 event.SetEventObject(this);
                 ProcessCommand(event);
@@ -275,6 +304,11 @@ 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;
@@ -300,11 +334,9 @@ 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++ )
     {
@@ -316,6 +348,10 @@ 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
@@ -329,6 +365,9 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
                                       );
     }
 
+    // and finally, show the control
+    Show(TRUE);
+
     return TRUE;
 }
 
@@ -337,9 +376,9 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
 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;
+  size_t singletons = 0;
+  size_t len = value.Length();
+  size_t i;
   for (i = 0; i < len; i ++)
   {
     if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
@@ -347,8 +386,9 @@ void wxComboBox::SetValue(const wxString& value)
   }
   if (singletons > 0)
   {
-    wxChar *tmp = new wxChar[len + singletons + 1];
-    int j = 0;
+    wxString tmp;
+    tmp.Alloc(len + singletons);
+    size_t j = 0;
     for (i = 0; i < len; i ++)
     {
       if ((i > 0) && (value[i] == 10) && (value[i-1] != 13))
@@ -359,12 +399,16 @@ void wxComboBox::SetValue(const wxString& value)
       tmp[j] = value[i];
       j ++;
     }
-    tmp[j] = 0;
-    SetWindowText(GetHwnd(), tmp);
-    delete[] tmp;
+    if (GetWindowStyle() & wxCB_READONLY)
+        SetStringSelection(tmp);
+    else
+        SetWindowText(GetHwnd(), tmp.c_str());
   }
   else
-    SetWindowText(GetHwnd(), value);
+    if (GetWindowStyle() & wxCB_READONLY)
+      SetStringSelection(value);
+    else
+      SetWindowText(GetHwnd(), value.c_str());
 }
 
 // Clipboard operations