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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3976 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
David Webster
@@ -1,119 +1,279 @@
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/////////////////////////////////////////////////////////////////////////////
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// Name: choice.cpp
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// Purpose: wxChoice
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// Author: AUTHOR
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// Author: David Webster
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// Modified by:
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// Created: ??/??/98
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// Created: 10/13/99
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// RCS-ID: $Id$
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// Copyright: (c) AUTHOR
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// Licence: wxWindows licence
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// Copyright: (c) David Webster
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "choice.h"
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifndef WX_PRECOMP
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#include "wx/choice.h"
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#include "wx/utils.h"
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#include "wx/log.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/choice.h"
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#include "wx/os2/private.h"
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#if !USE_SHARED_LIBRARY
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IMPLEMENT_DYNAMIC_CLASS(wxChoice, wxControl)
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#endif
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bool wxChoice::Create(wxWindow *parent, wxWindowID id,
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const wxPoint& pos,
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const wxSize& size,
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int n, const wxString choices[],
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long style,
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const wxValidator& validator,
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const wxString& name)
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bool wxChoice::Create(wxWindow *parent,
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wxWindowID id,
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const wxPoint& pos,
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const wxSize& size,
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int n, const wxString choices[],
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long style,
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const wxValidator& validator,
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const wxString& name)
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{
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SetName(name);
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SetValidator(validator);
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m_noStrings = n;
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m_windowStyle = style;
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if ( !CreateControl(parent, id, pos, size, style, validator, name) )
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return FALSE;
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// TODO:
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/*
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long msStyle = WS_CHILD | CBS_DROPDOWNLIST | WS_TABSTOP | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL;
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if ( style & wxCB_SORT )
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msStyle |= CBS_SORT;
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if (parent) parent->AddChild(this);
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// the experience shows that wxChoice vs. wxComboBox distinction confuses
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// quite a few people - try to help them
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wxASSERT_MSG( !(style & wxCB_DROPDOWN) &&
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!(style & wxCB_READONLY) &&
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!(style & wxCB_SIMPLE),
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wxT("this style flag is ignored by wxChoice, you "
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"probably want to use a wxComboBox") );
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if ( id == -1 )
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m_windowId = (int)NewControlId();
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else
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m_windowId = id;
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if ( !OS2CreateControl(wxT("COMBOBOX"), msStyle) )
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return FALSE;
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// TODO: create choice control
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return FALSE;
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for ( int i = 0; i < n; i++ )
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{
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Append(choices[i]);
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}
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*/
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SetSize(pos.x, pos.y, size.x, size.y);
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return TRUE;
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}
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void wxChoice::Append(const wxString& item)
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// ----------------------------------------------------------------------------
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// adding/deleting items to/from the list
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// ----------------------------------------------------------------------------
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int wxChoice::DoAppend(const wxString& item)
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{
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// TODO
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m_noStrings ++;
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// TODO:
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/*
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int n = (int)SendMessage(GetHwnd(), CB_ADDSTRING, 0, (LONG)item.c_str());
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if ( n == CB_ERR )
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{
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wxLogLastError("SendMessage(CB_ADDSTRING)");
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}
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*/
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return 0; //n
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}
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void wxChoice::Delete(int n)
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{
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// TODO
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m_noStrings --;
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wxCHECK_RET( n < GetCount(), wxT("invalid item index in wxChoice::Delete") );
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// TODO: SendMessage(GetHwnd(), CB_DELETESTRING, n, 0);
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}
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void wxChoice::Clear()
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{
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// TODO
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m_noStrings = 0;
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// TODO: SendMessage(GetHwnd(), CB_RESETCONTENT, 0, 0);
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}
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// ----------------------------------------------------------------------------
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// selection
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// ----------------------------------------------------------------------------
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int wxChoice::GetSelection() const
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{
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// TODO
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// TODO: return (int)SendMessage(GetHwnd(), CB_GETCURSEL, 0, 0);
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return 0;
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}
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void wxChoice::SetSelection(int n)
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{
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// TODO
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// TODO: SendMessage(GetHwnd(), CB_SETCURSEL, n, 0);
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}
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// ----------------------------------------------------------------------------
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// string list functions
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// ----------------------------------------------------------------------------
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int wxChoice::GetCount() const
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{
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// TODO: return (int)SendMessage(GetHwnd(), CB_GETCOUNT, 0, 0);
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return 0;
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}
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int wxChoice::FindString(const wxString& s) const
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{
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// TODO
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// TODO:
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/*
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int pos = (int)SendMessage(GetHwnd(), CB_FINDSTRINGEXACT,
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(WPARAM)-1, (LPARAM)s.c_str());
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return pos == LB_ERR ? wxNOT_FOUND : pos;
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*/
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return 0;
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}
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wxString wxChoice::GetString(int n) const
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{
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// TODO
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return wxString("");
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}
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void wxChoice::SetSize(int x, int y, int width, int height, int sizeFlags)
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{
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// TODO
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}
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wxString wxChoice::GetStringSelection () const
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{
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int sel = GetSelection ();
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if (sel > -1)
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return wxString(this->GetString (sel));
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else
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return wxString("");
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}
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bool wxChoice::SetStringSelection (const wxString& s)
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{
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int sel = FindString (s);
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if (sel > -1)
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{
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SetSelection (sel);
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return TRUE;
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size_t len = 0; // TODO: (size_t)::SendMessage(GetHwnd(), CB_GETLBTEXTLEN, n, 0);
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wxString str = "";
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// TODO:
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/*
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if (len) {
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if ( ::SendMessage(GetHwnd(), CB_GETLBTEXT, n,
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(LPARAM)str.GetWriteBuf(len)) == CB_ERR ) {
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wxLogLastError("SendMessage(CB_GETLBTEXT)");
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}
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else
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return FALSE;
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str.UngetWriteBuf();
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}
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*/
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return str;
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}
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void wxChoice::Command(wxCommandEvent & event)
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// ----------------------------------------------------------------------------
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// client data
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// ----------------------------------------------------------------------------
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void wxChoice::DoSetClientData( int n, void* clientData )
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{
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SetSelection (event.GetInt());
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ProcessCommand (event);
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// TODO:
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/*
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if ( SendMessage(GetHwnd(), CB_SETITEMDATA, n, (LPARAM)clientData) == CB_ERR )
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{
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wxLogLastError(wxT("CB_SETITEMDATA"));
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}
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*/
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}
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void* wxChoice::DoGetClientData( int n ) const
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{
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// TODO:
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/*
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LPARAM rc = SendMessage(GetHwnd(), CB_GETITEMDATA, n, 0);
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if ( rc == CB_ERR )
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{
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wxLogLastError(wxT("CB_GETITEMDATA"));
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// unfortunately, there is no way to return an error code to the user
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rc = (LPARAM) NULL;
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}
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return (void *)rc;
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*/
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return NULL;
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}
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void wxChoice::DoSetClientObject( int n, wxClientData* clientData )
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{
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DoSetClientData(n, clientData);
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}
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wxClientData* wxChoice::DoGetClientObject( int n ) const
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{
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// TODO: return (wxClientData *)DoGetClientData(n);
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return NULL;
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}
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// ----------------------------------------------------------------------------
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// wxOS2 specific helpers
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// ----------------------------------------------------------------------------
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void wxChoice::DoSetSize(int x, int y,
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int width, int height,
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int sizeFlags)
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{
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// Ignore height parameter because height doesn't mean 'initially
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// displayed' height, it refers to the drop-down menu as well. The
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// wxWindows interpretation is different; also, getting the size returns
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// the _displayed_ size (NOT the drop down menu size) so
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// setting-getting-setting size would not work.
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wxControl::DoSetSize(x, y, width, -1, sizeFlags);
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}
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wxSize wxChoice::DoGetBestSize()
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{
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// find the widest string
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int wLine;
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int wChoice = 0;
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int nItems = GetCount();
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for ( int i = 0; i < nItems; i++ )
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{
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wxString str(GetString(i));
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GetTextExtent(str, &wLine, NULL);
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if ( wLine > wChoice )
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wChoice = wLine;
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}
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// give it some reasonable default value if there are no strings in the
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// list
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if ( wChoice == 0 )
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wChoice = 100;
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// the combobox should be larger than the widest string
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int cx, cy;
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wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
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wChoice += 5*cx;
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// Choice drop-down list depends on number of items (limited to 10)
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size_t nStrings = nItems == 0 ? 10 : wxMin(10, nItems) + 1;
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int hChoice = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)*nStrings;
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return wxSize(wChoice, hChoice);
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}
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MRESULT wxChoice::OS2WindowProc(HWND hwnd, WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
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{
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// TODO:
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/*
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if ( nMsg == WM_LBUTTONUP )
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{
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int x = (int)LOWORD(lParam);
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int y = (int)HIWORD(lParam);
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// Ok, this is truly weird, but if a panel with a wxChoice loses the
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// focus, then you get a *fake* WM_LBUTTONUP message with x = 65535 and
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// y = 65535. Filter out this nonsense.
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//
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// VZ: I'd like to know how to reproduce this please...
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if ( x == 65535 && y == 65535 )
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return 0;
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}
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*/
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return wxWindow::OS2WindowProc(hwnd, nMsg, wParam, lParam);
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}
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bool wxChoice::OS2Command(WXUINT param, WXWORD WXUNUSED(id))
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{
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// TODO:
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/*
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if ( param != CBN_SELCHANGE)
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{
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// "selection changed" is the only event we're after
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return FALSE;
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}
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*/
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wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, m_windowId);
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event.SetInt(GetSelection());
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event.SetEventObject(this);
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// TODO: event.SetString(GetStringSelection());
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ProcessCommand(event);
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return TRUE;
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}
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