/////////////////////////////////////////////////////////////////////////////
// Name: choice.cpp
// Purpose: wxChoice
-// Author: AUTHOR
+// Author: David Webster
// Modified by:
-// Created: ??/??/98
+// Created: 10/13/99
// 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
-// 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)
-#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)
{
- // TODO
- m_noStrings --;
+ wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
+
+// TODO: SendMessage(GetHwnd(), CB_DELETESTRING, n, 0);
}
void wxChoice::Clear()
{
- // TODO
- m_noStrings = 0;
+ // TODO: SendMessage(GetHwnd(), CB_RESETCONTENT, 0, 0);
}
+// ----------------------------------------------------------------------------
+// selection
+// ----------------------------------------------------------------------------
+
int wxChoice::GetSelection() const
{
- // TODO
+ // TODO: return (int)SendMessage(GetHwnd(), CB_GETCURSEL, 0, 0);
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
{
- // TODO
+ // TODO:
+ /*
+ int pos = (int)SendMessage(GetHwnd(), CB_FINDSTRINGEXACT,
+ (WPARAM)-1, (LPARAM)s.c_str());
+
+ return pos == LB_ERR ? wxNOT_FOUND : pos;
+ */
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
{
- // 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;
}
projects / wxWidgets.git / blobdiff