merged MapBitmap() from 2.2 branch

[wxWidgets.git] / src / os2 / choice.cpp

diff --git a/src/os2/choice.cpp b/src/os2/choice.cpp
index a584d5303fb41c40ef4ba78fe4aa66f5e8b13818..84758c1bb8efe5a8f39ddeb4bf8edb2584edd5d4 100644 (file)
--- a/src/os2/choice.cpp
+++ b/src/os2/choice.cpp
@@ -1,119 +1,288 @@
 /////////////////////////////////////////////////////////////////////////////
 // Name:        choice.cpp
 // Purpose:     wxChoice
 /////////////////////////////////////////////////////////////////////////////
 // Name:        choice.cpp
 // Purpose:     wxChoice

-// Author:      AUTHOR
+// Author:      David Webster

 // Modified by:
 // Modified by:

-// Created:     ??/??/98
+// Created:     10/13/99

 // RCS-ID:      $Id$
 // RCS-ID:      $Id$

-// Copyright:   (c) AUTHOR
-// Licence:    wxWindows licence
+// Copyright:   (c) David Webster
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "choice.h"
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/choice.h"
+    #include "wx/utils.h"
+    #include "wx/log.h"

 #endif
 
 #endif
 

-// For compilers that support precompilation, includes "wx.h".
-#include "wx/choice.h"
+#include "wx/os2/private.h"

 
 

-#if !USE_SHARED_LIBRARY

 IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)

-#endif

 
 

-bool wxChoice::Create(wxWindow *parent, wxWindowID id,
-           const wxPoint& pos,
-           const wxSize& size,
-                  int n, const wxString choices[],
-                  long style,
-           const wxValidator& validator,
-           const wxString& name)
+bool wxChoice::Create(wxWindow *parent,
+                      wxWindowID id,
+                      const wxPoint& pos,
+                      const wxSize& size,
+                      int n, const wxString choices[],
+                      long style,
+#if wxUSE_VALIDATORS
+                      const wxValidator& validator,
+#endif
+                      const wxString& name)

 {
 {

-    SetName(name);
-    SetValidator(validator);
-    m_noStrings = n;
-    m_windowStyle = style;
+    if ( !CreateControl(parent, id, pos, size, style, validator, name) )
+        return FALSE;
+// TODO:
+/*
+    long msStyle = WS_CHILD | CBS_DROPDOWNLIST | WS_TABSTOP | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL;
+    if ( style & wxCB_SORT )
+        msStyle |= CBS_SORT;

 
 

-    if (parent) parent->AddChild(this);
+    // the experience shows that wxChoice vs. wxComboBox distinction confuses
+    // quite a few people - try to help them
+    wxASSERT_MSG( !(style & wxCB_DROPDOWN) &&
+                  !(style & wxCB_READONLY) &&
+                  !(style & wxCB_SIMPLE),
+                  wxT("this style flag is ignored by wxChoice, you "
+                     "probably want to use a wxComboBox") );

 
 

-    if ( id == -1 )
-       m_windowId = (int)NewControlId();
-    else
-       m_windowId = id;
+    if ( !OS2CreateControl(wxT("COMBOBOX"), msStyle) )
+        return FALSE;

 
 

-    // TODO: create choice control
-    return FALSE;
+    for ( int i = 0; i < n; i++ )
+    {
+        Append(choices[i]);
+    }
+*/
+    SetSize(pos.x, pos.y, size.x, size.y);
+
+    return TRUE;

 }
 
 }
 

-void wxChoice::Append(const wxString& item)
+// ----------------------------------------------------------------------------
+// adding/deleting items to/from the list
+// ----------------------------------------------------------------------------
+
+int wxChoice::DoAppend(const wxString& item)

 {
 {

-    // TODO
-    m_noStrings ++;
+    // TODO:
+    /*
+    int n = (int)SendMessage(GetHwnd(), CB_ADDSTRING, 0, (LONG)item.c_str());
+    if ( n == CB_ERR )
+    {
+        wxLogLastError("SendMessage(CB_ADDSTRING)");
+    }
+    */
+    return 0; //n

 }
 
 void wxChoice::Delete(int n)
 {
 }
 
 void wxChoice::Delete(int n)
 {

-    // TODO
-    m_noStrings --;
+    wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
+
+// TODO:    SendMessage(GetHwnd(), CB_DELETESTRING, n, 0);

 }
 
 void wxChoice::Clear()
 {
 }
 
 void wxChoice::Clear()
 {

-    // TODO
-    m_noStrings = 0;
+    // TODO: SendMessage(GetHwnd(), CB_RESETCONTENT, 0, 0);

 }
 
 }
 

+// ----------------------------------------------------------------------------
+// selection
+// ----------------------------------------------------------------------------
+

 int wxChoice::GetSelection() const
 {
 int wxChoice::GetSelection() const
 {

-    // TODO
+    // TODO: return (int)SendMessage(GetHwnd(), CB_GETCURSEL, 0, 0);

     return 0;
 }
 
 void wxChoice::SetSelection(int n)
 {
     return 0;
 }
 
 void wxChoice::SetSelection(int n)
 {

-    // TODO
+    // TODO: SendMessage(GetHwnd(), CB_SETCURSEL, n, 0);
+}
+
+// ----------------------------------------------------------------------------
+// string list functions
+// ----------------------------------------------------------------------------
+
+int wxChoice::GetCount() const
+{
+    // TODO: return (int)SendMessage(GetHwnd(), CB_GETCOUNT, 0, 0);
+    return 0;

 }
 
 int wxChoice::FindString(const wxString& s) const
 {
 }
 
 int wxChoice::FindString(const wxString& s) const
 {

-    // TODO
+   // TODO:
+   /*
+    int pos = (int)SendMessage(GetHwnd(), CB_FINDSTRINGEXACT,
+                               (WPARAM)-1, (LPARAM)s.c_str());
+
+    return pos == LB_ERR ? wxNOT_FOUND : pos;
+   */

     return 0;
 }
 
     return 0;
 }
 

+void wxChoice::SetString(int n, const wxString& s)
+{
+    wxFAIL_MSG(wxT("not implemented"));
+
+#if 0 // should do this, but no Insert() so far
+    Delete(n);
+    Insert(n + 1, s);
+#endif
+}
+

 wxString wxChoice::GetString(int n) const
 {
 wxString wxChoice::GetString(int n) const
 {

-    // TODO
-    return wxString("");
+    size_t len = 0; // TODO: (size_t)::SendMessage(GetHwnd(), CB_GETLBTEXTLEN, n, 0);
+    wxString str = "";
+    // TODO:
+    /*
+    if (len) {
+        if ( ::SendMessage(GetHwnd(), CB_GETLBTEXT, n,
+                           (LPARAM)str.GetWriteBuf(len)) == CB_ERR ) {
+            wxLogLastError("SendMessage(CB_GETLBTEXT)");
+        }
+        str.UngetWriteBuf();
+    }
+    */
+    return str;

 }
 
 }
 

-void wxChoice::SetSize(int x, int y, int width, int height, int sizeFlags)
+// ----------------------------------------------------------------------------
+// client data
+// ----------------------------------------------------------------------------
+
+void wxChoice::DoSetItemClientData( int n, void* clientData )

 {
 {

-    // TODO
+   // TODO:
+   /*
+    if ( SendMessage(GetHwnd(), CB_SETITEMDATA, n, (LPARAM)clientData) == CB_ERR )
+    {
+        wxLogLastError(wxT("CB_SETITEMDATA"));
+    }
+   */

 }
 
 }
 

-wxString wxChoice::GetStringSelection () const
+void* wxChoice::DoGetItemClientData( int n ) const

 {
 {

-    int sel = GetSelection ();
-    if (sel > -1)
-        return wxString(this->GetString (sel));
-    else
-        return wxString("");
+ // TODO:
+ /*
+    LPARAM rc = SendMessage(GetHwnd(), CB_GETITEMDATA, n, 0);
+    if ( rc == CB_ERR )
+    {
+        wxLogLastError(wxT("CB_GETITEMDATA"));
+
+        // unfortunately, there is no way to return an error code to the user
+       rc = (LPARAM) NULL;
+    }
+
+    return (void *)rc;
+ */
+    return NULL;

 }
 
 }
 

-bool wxChoice::SetStringSelection (const wxString& s)
+void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData )

 {
 {

-    int sel = FindString (s);
-    if (sel > -1)
-        {
-            SetSelection (sel);
-            return TRUE;
-        }
-    else
-        return FALSE;
+    DoSetItemClientData(n, clientData);
+}
+
+wxClientData* wxChoice::DoGetItemClientObject( int n ) const
+{
+    return (wxClientData *)DoGetItemClientData(n);
+}
+
+// ----------------------------------------------------------------------------
+// wxOS2 specific helpers
+// ----------------------------------------------------------------------------
+
+void wxChoice::DoSetSize(int x, int y,
+                         int width, int height,
+                         int sizeFlags)
+{
+    // Ignore height parameter because height doesn't mean 'initially
+    // displayed' height, it refers to the drop-down menu as well. The
+    // wxWindows interpretation is different; also, getting the size returns
+    // the _displayed_ size (NOT the drop down menu size) so
+    // setting-getting-setting size would not work.
+    wxControl::DoSetSize(x, y, width, -1, sizeFlags);
+}
+
+wxSize wxChoice::DoGetBestSize() const
+{
+    // find the widest string
+    int wLine;
+    int wChoice = 0;
+    int nItems = GetCount();
+    for ( int i = 0; i < nItems; i++ )
+    {
+        wxString str(GetString(i));
+        GetTextExtent(str, &wLine, NULL);
+        if ( wLine > wChoice )
+            wChoice = wLine;
+    }
+
+    // give it some reasonable default value if there are no strings in the
+    // list
+    if ( wChoice == 0 )
+        wChoice = 100;
+
+    // the combobox should be larger than the widest string
+    int cx, cy;
+    wxGetCharSize(GetHWND(), &cx, &cy, (wxFont*)&GetFont());
+
+    wChoice += 5*cx;
+
+    // Choice drop-down list depends on number of items (limited to 10)
+    size_t nStrings = nItems == 0 ? 10 : wxMin(10, nItems) + 1;
+    int hChoice = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)*nStrings;
+
+    return wxSize(wChoice, hChoice);

 }
 
 }
 

-void wxChoice::Command(wxCommandEvent & event)
+MRESULT wxChoice::OS2WindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)

 {
 {

-    SetSelection (event.GetInt());
-    ProcessCommand (event);
+   // TODO:
+   /*
+    if ( nMsg == 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;
+    }
+    */
+    return wxWindow::OS2WindowProc(nMsg, wParam, lParam);
+}
+
+bool wxChoice::OS2Command(WXUINT param, WXWORD WXUNUSED(id))
+{
+   // TODO:
+   /*
+    if ( param != CBN_SELCHANGE)
+    {
+        // "selection changed" is the only event we're after
+        return FALSE;
+    }
+    */
+    wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId);
+    event.SetInt(GetSelection());
+    event.SetEventObject(this);
+// TODO:    event.SetString(GetStringSelection());
+    ProcessCommand(event);
+
+    return TRUE;

 }
 
 }