X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ef0368834fd9f80de27e1449cfdb767d59410a65..660296aa90ad5ecc98c585cc24567cee8130499a:/src/msw/choice.cpp?ds=sidebyside

diff --git a/src/msw/choice.cpp b/src/msw/choice.cpp
index 9e9cde38ca..a243f36fb0 100644
--- a/src/msw/choice.cpp
+++ b/src/msw/choice.cpp
@@ -28,7 +28,7 @@
     #pragma hdrstop
 #endif
 
-#if wxUSE_CHOICE
+#if wxUSE_CHOICE && !(defined(__SMARTPHONE__) && defined(__WXWINCE__))
 
 #ifndef WX_PRECOMP
     #include "wx/choice.h"
@@ -138,11 +138,11 @@ bool wxChoice::CreateAndInit(wxWindow *parent,
 {
     // initialize wxControl
     if ( !CreateControl(parent, id, pos, size, style, validator, name) )
-        return FALSE;
+        return false;
 
     // now create the real HWND
-    if ( !MSWCreateControl(wxT("COMBOBOX"), _T(""), pos, size) )
-        return FALSE;
+    if ( !MSWCreateControl(wxT("COMBOBOX"), wxEmptyString, pos, size) )
+        return false;
 
 
     // choice/combobox normally has "white" (depends on colour scheme, of
@@ -158,7 +158,7 @@ bool wxChoice::CreateAndInit(wxWindow *parent,
     // and now we may finally size the control properly (if needed)
     SetBestSize(size);
 
-    return TRUE;
+    return true;
 }
 
 bool wxChoice::Create(wxWindow *parent,
@@ -179,8 +179,9 @@ bool wxChoice::MSWShouldPreProcessMessage(WXMSG *pMsg)
 {
     MSG *msg = (MSG *) pMsg;
 
-    // don't preprocess "ESC" if combobox is dropped down
-    if ( msg->message == WM_KEYDOWN && msg->wParam == VK_ESCAPE )
+    // if the dropdown list is visible, don't preprocess certain keys
+    if ( msg->message == WM_KEYDOWN
+        && (msg->wParam == VK_ESCAPE || msg->wParam == VK_RETURN) )
     {
         if (::SendMessage(GetHwndOf(this), CB_GETDROPPEDSTATE, 0, 0))
         {
@@ -231,7 +232,8 @@ int wxChoice::DoAppend(const wxString& item)
     {
         // we need to refresh our size in order to have enough space for the
         // newly added items
-        UpdateVisibleHeight();
+        if ( !IsFrozen() )
+            UpdateVisibleHeight();
     }
 
     return n;
@@ -249,7 +251,8 @@ int wxChoice::DoInsert(const wxString& item, int pos)
     }
     else // ok
     {
-        UpdateVisibleHeight();
+        if ( !IsFrozen() )
+            UpdateVisibleHeight();
     }
 
     return n;
@@ -266,7 +269,8 @@ void wxChoice::Delete(int n)
 
     SendMessage(GetHwnd(), CB_DELETESTRING, n, 0);
 
-    UpdateVisibleHeight();
+    if ( !IsFrozen() )
+        UpdateVisibleHeight();
 }
 
 void wxChoice::Clear()
@@ -275,7 +279,8 @@ void wxChoice::Clear()
 
     SendMessage(GetHwnd(), CB_RESETCONTENT, 0, 0);
 
-    UpdateVisibleHeight();
+    if ( !IsFrozen() )
+        UpdateVisibleHeight();
 }
 
 void wxChoice::Free()
@@ -322,16 +327,32 @@ int wxChoice::FindString(const wxString& s) const
     for ( int i = 0; i < count; i++ )
     {
         // as CB_FINDSTRINGEXACT is case insensitive, be case insensitive too
-        if ( GetString(i).IsSameAs(s, FALSE) )
+        if ( GetString(i).IsSameAs(s, false) )
             return i;
     }
 
     return wxNOT_FOUND;
 #else // !Watcom
-    int pos = (int)SendMessage(GetHwnd(), CB_FINDSTRINGEXACT,
-                               (WPARAM)-1, (LPARAM)s.c_str());
-
-    return pos == LB_ERR ? wxNOT_FOUND : pos;
+   //TODO:  Evidently some MSW versions (all?) don't like empty strings
+   //passed to SendMessage, so we have to do it ourselves in that case
+   if ( s.empty() )
+   {
+     int count = GetCount();
+     for ( int i = 0; i < count; i++ )
+     {
+       if ( GetString(i).empty() )
+           return i;
+     }
+
+     return wxNOT_FOUND;
+   }
+   else
+   {
+     int pos = (int)SendMessage(GetHwnd(), CB_FINDSTRINGEXACT,
+                                (WPARAM)-1, (LPARAM)s.c_str());
+
+     return pos == LB_ERR ? wxNOT_FOUND : pos;
+   }
 #endif // Watcom/!Watcom
 }
 
@@ -430,7 +451,7 @@ wxClientData* wxChoice::DoGetItemClientObject( int n ) const
 void wxChoice::UpdateVisibleHeight()
 {
     // be careful to not change the width here
-    DoSetSize(-1, -1, -1, GetSize().y, wxSIZE_USE_EXISTING);
+    DoSetSize(wxDefaultCoord, wxDefaultCoord, wxDefaultCoord, GetSize().y, wxSIZE_USE_EXISTING);
 }
 
 void wxChoice::DoMoveWindow(int x, int y, int width, int height)
@@ -457,7 +478,7 @@ void wxChoice::DoGetSize(int *w, int *h) const
     // total height of the control including the drop down list -- but only
     // sometimes, and normally it isn't... I have no idea about what to do with
     // this
-    wxControl::DoGetSize(w, h);    
+    wxControl::DoGetSize(w, h);
 }
 
 void wxChoice::DoSetSize(int x, int y,
@@ -469,20 +490,37 @@ void wxChoice::DoSetSize(int x, int y,
     // the height which we must pass to Windows should be the total height of
     // the control including the drop down list while the height given to us
     // is, of course, just the height of the permanently visible part of it
-    if ( height != -1 )
+    if ( height != wxDefaultCoord )
     {
         // don't make the drop down list too tall, arbitrarily limit it to 40
         // items max and also don't leave it empty
         size_t nItems = GetCount();
         if ( !nItems )
             nItems = 9;
-        else if ( nItems > 39 )
-            nItems = 39;
+        else if ( nItems > 24 )
+            nItems = 24;
 
         // add space for the drop down list
         const int hItem = SendMessage(GetHwnd(), CB_GETITEMHEIGHT, 0, 0);
         height += hItem*(nItems + 1);
     }
+    else
+    {
+        // We cannot pass wxDefaultCoord as height to wxControl. wxControl uses
+        // wxGetWindowRect() to determine the current height of the combobox,
+        // and then again sets the combobox's height to that value. Unfortunately,
+        // wxGetWindowRect doesn't include the dropdown list's height (at least
+        // on Win2K), so this would result in a combobox with dropdown height of
+        // 1 pixel. We have to determine the default height ourselves and call
+        // wxControl with that value instead.
+        int w, h;
+        RECT r;
+        DoGetSize(&w, &h);
+        if (::SendMessage(GetHwnd(), CB_GETDROPPEDCONTROLRECT, 0, (LPARAM) &r) != 0)
+        {
+            height = h + r.bottom - r.top;
+        }
+    }
 
     wxControl::DoSetSize(x, y, width, height, sizeFlags);
 
@@ -494,7 +532,7 @@ void wxChoice::DoSetSize(int x, int y,
     // if the height specified for the visible part of the control is
     // different from the current one, we need to change it separately
     // as it is not affected by normal WM_SETSIZE
-    if ( height != -1 )
+    if ( height != wxDefaultCoord )
     {
         const int delta = heightOrig - GetSize().y;
         if ( delta )
@@ -503,6 +541,8 @@ void wxChoice::DoSetSize(int x, int y,
             SendMessage(GetHwnd(), CB_SETITEMHEIGHT, (WPARAM)-1, h + delta);
         }
     }
+#else
+    wxUnusedVar(heightOrig);
 #endif
 }
 
@@ -532,18 +572,38 @@ wxSize wxChoice::DoGetBestSize() const
 
 WXLRESULT wxChoice::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 {
-    if ( nMsg == WM_LBUTTONUP )
+    switch ( nMsg )
     {
-        int x = (int)LOWORD(lParam);
-        int y = (int)HIWORD(lParam);
-
-        // Ok, this is truly weird, but if a panel with a wxChoice loses the
-        // focus, then you get a *fake* WM_LBUTTONUP message with x = 65535 and
-        // y = 65535. Filter out this nonsense.
-        //
-        // VZ: I'd like to know how to reproduce this please...
-        if ( x == 65535 && y == 65535 )
-            return 0;
+        case WM_LBUTTONUP:
+            {
+                int x = (int)LOWORD(lParam);
+                int y = (int)HIWORD(lParam);
+
+                // Ok, this is truly weird, but if a panel with a wxChoice
+                // loses the focus, then you get a *fake* WM_LBUTTONUP message
+                // with x = 65535 and y = 65535. Filter out this nonsense.
+                //
+                // VZ: I'd like to know how to reproduce this please...
+                if ( x == 65535 && y == 65535 )
+                    return 0;
+            }
+            break;
+
+            // we have to handle both: one for the normal case and the other
+            // for readonly
+        case WM_CTLCOLOREDIT:
+        case WM_CTLCOLORLISTBOX:
+        case WM_CTLCOLORSTATIC:
+            {
+                WXHDC hdc;
+                WXHWND hwnd;
+                UnpackCtlColor(wParam, lParam, &hdc, &hwnd);
+
+                WXHBRUSH hbr = MSWControlColor((WXHDC)hdc);
+                if ( hbr )
+                    return (WXLRESULT)hbr;
+                //else: fall through to default window proc
+            }
     }
 
     return wxWindow::MSWWindowProc(nMsg, wParam, lParam);
@@ -554,7 +614,7 @@ bool wxChoice::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
     if ( param != CBN_SELCHANGE)
     {
         // "selection changed" is the only event we're after
-        return FALSE;
+        return false;
     }
 
     int n = GetSelection();
@@ -571,27 +631,16 @@ bool wxChoice::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
         ProcessCommand(event);
     }
 
-    return TRUE;
+    return true;
 }
 
-WXHBRUSH wxChoice::OnCtlColor(WXHDC pDC, WXHWND WXUNUSED(pWnd), WXUINT WXUNUSED(nCtlColor),
-                               WXUINT WXUNUSED(message),
-                               WXWPARAM WXUNUSED(wParam),
-                               WXLPARAM WXUNUSED(lParam)
-     )
+WXHBRUSH wxChoice::MSWControlColor(WXHDC hDC)
 {
-    HDC hdc = (HDC)pDC;
-    wxColour colBack = GetBackgroundColour();
-
-    if (!IsEnabled())
-        colBack = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE);
+    if ( !IsEnabled() )
+        return MSWControlColorDisabled(hDC);
 
-    ::SetBkColor(hdc, wxColourToRGB(colBack));
-    ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour()));
-
-    wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBack, wxSOLID);
-
-    return (WXHBRUSH)brush->GetResourceHandle();
+    return wxChoiceBase::MSWControlColorSolid(hDC);
 }
 
-#endif // wxUSE_CHOICE
+#endif // wxUSE_CHOICE && !(__SMARTPHONE__ && __WXWINCE__)
+