X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/33b64e6f8b7cf372a569e61d7eee879217945043..a06066343d670807825adcafebfa4fb8cfff5521:/src/msw/combobox.cpp

diff --git a/src/msw/combobox.cpp b/src/msw/combobox.cpp
index aec17db23d..f00c1297c9 100644
--- a/src/msw/combobox.cpp
+++ b/src/msw/combobox.cpp
@@ -20,42 +20,46 @@
 #pragma hdrstop
 #endif
 
+#if wxUSE_COMBOBOX
+
 #ifndef WX_PRECOMP
-#include "wx/setup.h"
+#include "wx/settings.h"
 #endif
 
-#if wxUSE_COMBOBOX
-
 #include "wx/combobox.h"
 #include "wx/clipbrd.h"
 #include "wx/msw/private.h"
 
-#if !USE_SHARED_LIBRARY
 IMPLEMENT_DYNAMIC_CLASS(wxComboBox, wxControl)
-#endif
 
 bool wxComboBox::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
 {
-  if (param == CBN_SELCHANGE)
-  {
-    wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, m_windowId);
-    event.SetInt(GetSelection());
-    event.SetEventObject(this);
-    event.SetString(copystring(GetStringSelection()));
-    ProcessCommand(event);
-    delete[] event.GetString();
-    return TRUE;
-  }
-  else if (param == CBN_EDITCHANGE)
-  {
-    wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId);
-    event.SetString(copystring(GetValue()));
-    event.SetEventObject(this);
-    ProcessCommand(event);
-    delete[] event.GetString();
-    return TRUE;
-  }
-  else return FALSE;
+    switch ( param )
+    {
+        case CBN_SELCHANGE:
+            if (GetSelection() > -1)
+            {
+                wxCommandEvent event(wxEVT_COMMAND_COMBOBOX_SELECTED, GetId());
+                event.SetInt(GetSelection());
+                event.SetEventObject(this);
+                event.SetString(GetStringSelection());
+                ProcessCommand(event);
+            }
+            break;
+
+        case CBN_EDITCHANGE:
+            {
+                wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
+                event.SetString(GetValue());
+                event.SetEventObject(this);
+                ProcessCommand(event);
+            }
+            break;
+    }
+
+    // there is no return value for the CBN_ notifications, so always return
+    // FALSE from here to pass the message to DefWindowProc()
+    return FALSE;
 }
 
 bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
@@ -68,11 +72,17 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
                         const wxString& name)
 {
   SetName(name);
+#if wxUSE_VALIDATORS
   SetValidator(validator);
+#endif // wxUSE_VALIDATORS
   if (parent) parent->AddChild(this);
-  SetBackgroundColour(parent->GetBackgroundColour()) ;
+//  SetBackgroundColour(parent->GetBackgroundColour()) ;
+
+  // 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));
+
   SetForegroundColour(parent->GetForegroundColour()) ;
-  m_noStrings = 0;
 
   m_windowStyle = style;
 
@@ -86,8 +96,8 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
   int width = size.x;
   int height = size.y;
 
-  long msStyle = WS_CHILD | WS_HSCROLL | WS_VSCROLL |
-                 WS_TABSTOP | WS_VISIBLE | CBS_NOINTEGRALHEIGHT;
+  long msStyle = WS_CHILD | WS_TABSTOP | WS_VISIBLE |
+                 WS_VSCROLL | WS_HSCROLL | CBS_AUTOHSCROLL | CBS_NOINTEGRALHEIGHT;
 
   if (m_windowStyle & wxCB_READONLY)
     msStyle |= CBS_DROPDOWNLIST;
@@ -107,12 +117,12 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
   if ( want3D || wxStyleHasBorder(m_windowStyle) )
     msStyle |= WS_BORDER;
 
-  m_hWnd = (WXHWND)::CreateWindowEx(exStyle, "COMBOBOX", NULL,
+  m_hWnd = (WXHWND)::CreateWindowEx(exStyle, wxT("COMBOBOX"), NULL,
                    msStyle,
                    0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
                    wxGetInstance(), NULL);
 
-  wxCHECK_MSG( m_hWnd, FALSE, "Failed to create combobox" );
+  wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create combobox") );
 
 /*
 #if wxUSE_CTL3D
@@ -145,11 +155,6 @@ bool wxComboBox::Create(wxWindow *parent, wxWindowID id,
   return TRUE;
 }
 
-wxString wxComboBox::GetValue() const
-{
-  return wxGetWindowText(GetHWND());
-}
-
 void wxComboBox::SetValue(const wxString& value)
 {
   // If newlines are denoted by just 10, must stick 13 in front.
@@ -163,7 +168,7 @@ void wxComboBox::SetValue(const wxString& value)
   }
   if (singletons > 0)
   {
-    char *tmp = new char[len + singletons + 1];
+    wxChar *tmp = new wxChar[len + singletons + 1];
     int j = 0;
     for (i = 0; i < len; i ++)
     {
@@ -176,43 +181,43 @@ void wxComboBox::SetValue(const wxString& value)
       j ++;
     }
     tmp[j] = 0;
-    SetWindowText((HWND) GetHWND(), tmp);
+    SetWindowText(GetHwnd(), tmp);
     delete[] tmp;
   }
   else
-    SetWindowText((HWND) GetHWND(), (const char *)value);
+    SetWindowText(GetHwnd(), value);
 }
 
 // Clipboard operations
 void wxComboBox::Copy()
 {
-  HWND hWnd = (HWND) GetHWND();
+  HWND hWnd = GetHwnd();
   SendMessage(hWnd, WM_COPY, 0, 0L);
 }
 
 void wxComboBox::Cut()
 {
-  HWND hWnd = (HWND) GetHWND();
+  HWND hWnd = GetHwnd();
   SendMessage(hWnd, WM_CUT, 0, 0L);
 }
 
 void wxComboBox::Paste()
 {
-  HWND hWnd = (HWND) GetHWND();
+  HWND hWnd = GetHwnd();
   SendMessage(hWnd, WM_PASTE, 0, 0L);
 }
 
 void wxComboBox::SetEditable(bool editable)
 {
   // Can't implement in MSW?
-//  HWND hWnd = (HWND) GetHWND();
+//  HWND hWnd = GetHwnd();
 //  SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L);
 }
 
 void wxComboBox::SetInsertionPoint(long pos)
 {
 /*
-  HWND hWnd = (HWND) GetHWND();
+  HWND hWnd = GetHwnd();
 #ifdef __WIN32__
   SendMessage(hWnd, EM_SETSEL, pos, pos);
   SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
@@ -235,7 +240,7 @@ void wxComboBox::SetInsertionPointEnd()
 long wxComboBox::GetInsertionPoint() const
 {
 /*
-  DWORD Pos=(DWORD)SendMessage((HWND) GetHWND(), EM_GETSEL, 0, 0L);
+  DWORD Pos=(DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L);
   return Pos&0xFFFF;
 */
   return 0;
@@ -244,14 +249,14 @@ long wxComboBox::GetInsertionPoint() const
 long wxComboBox::GetLastPosition() const
 {
 /*
-    HWND hWnd = (HWND) GetHWND();
+    HWND hWnd = GetHwnd();
 
     // Will always return a number > 0 (according to docs)
     int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L);
 
     // This gets the char index for the _beginning_ of the last line
     int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L);
-    
+
     // Get number of characters in the last line. We'll add this to the character
     // index for the last line, 1st position.
     int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L);
@@ -264,10 +269,10 @@ long wxComboBox::GetLastPosition() const
 void wxComboBox::Replace(long from, long to, const wxString& value)
 {
 #if wxUSE_CLIPBOARD
-    HWND hWnd = (HWND) GetHWND();
+    HWND hWnd = GetHwnd();
     long fromChar = from;
     long toChar = to;
-    
+
     // Set selection and remove it
 #ifdef __WIN32__
     SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
@@ -277,7 +282,7 @@ void wxComboBox::Replace(long from, long to, const wxString& value)
     SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0);
 
     // Now replace with 'value', by pasting.
-    wxSetClipboardData(wxDF_TEXT, (wxObject *)(const char *)value, 0, 0);
+    wxSetClipboardData(wxDF_TEXT, (wxObject *)(const wxChar *)value, 0, 0);
 
     // Paste into edit control
     SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L);
@@ -286,10 +291,10 @@ void wxComboBox::Replace(long from, long to, const wxString& value)
 
 void wxComboBox::Remove(long from, long to)
 {
-    HWND hWnd = (HWND) GetHWND();
+    HWND hWnd = GetHwnd();
     long fromChar = from;
     long toChar = to;
-    
+
     // Cut all selected text
 #ifdef __WIN32__
     SendMessage(hWnd, CB_SETEDITSEL, fromChar, toChar);
@@ -301,7 +306,7 @@ void wxComboBox::Remove(long from, long to)
 
 void wxComboBox::SetSelection(long from, long to)
 {
-    HWND hWnd = (HWND) GetHWND();
+    HWND hWnd = GetHwnd();
     long fromChar = from;
     long toChar = to;
     // if from and to are both -1, it means
@@ -312,7 +317,7 @@ void wxComboBox::SetSelection(long from, long to)
       fromChar = 0;
       toChar = -1;
     }
-    
+
 #ifdef __WIN32__
     SendMessage(hWnd, CB_SETEDITSEL, (WPARAM)fromChar, (LPARAM)toChar);
 //    SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0);
@@ -322,6 +327,38 @@ void wxComboBox::SetSelection(long from, long to)
 #endif
 }
 
+void wxComboBox::DoMoveWindow(int x, int y, int width, int height)
+{
+    int cx, cy;
+    wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
+
+    // what should the height of the drop down list be? we choose 10 items by
+    // default and also 10 items max (if we always use n, the list will never
+    // have vertical scrollbar)
+    int n = GetCount();
+    if ( !n )
+        n = 10;
+    else if ( n > 10 )
+        n = 10;
+
+    height = n * EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
+
+    wxControl::DoMoveWindow(x, y, width, height);
+}
+
+wxSize wxComboBox::DoGetBestSize() const
+{
+    // the choice calculates the horz size correctly, but not the vertical
+    // component: correct it
+    wxSize size = wxChoice::DoGetBestSize();
+
+    int cx, cy;
+    wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
+    size.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
+
+    return size;
+}
+
 #endif
  // wxUSE_COMBOBOX