implement AutoComplete for wxMSW too
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@49636 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
parent
0c3d1aa7fd
commit
0847dca672
@ -335,8 +335,8 @@ the programmer should use \helpref{GetInsertionPoint}{wxtextctrlgetinsertionpoin
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Call this function to enable auto-completion of the text typed in a single-line
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text control using the given \arg{choices}.
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Notice that currently this function is only implemented in wxGTK2 port and does
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nothing under the other platforms.
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Notice that currently this function is only implemented in wxGTK2 and wxMSW
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ports and does nothing under the other platforms.
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\newsince{2.9.0}
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@ -42,7 +42,12 @@ public:
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{ DoSetSelection(from, to); }
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virtual void GetSelection(long *from, long *to) const;
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// auto-completion uses COM under Windows so they won't work without
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// wxUSE_OLE as OleInitialize() is not called then
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#if wxUSE_OLE
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virtual bool AutoComplete(const wxArrayString& choices);
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virtual bool AutoCompleteFileNames();
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#endif // wxUSE_OLE
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virtual bool IsEditable() const;
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virtual void SetEditable(bool editable);
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@ -40,10 +40,119 @@
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#define GetEditHwnd() ((HWND)(GetEditHWND()))
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// ----------------------------------------------------------------------------
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// wxIEnumString implements IEnumString interface
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// ----------------------------------------------------------------------------
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#if wxUSE_OLE
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#include "wx/msw/ole/oleutils.h"
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#include <shldisp.h>
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DEFINE_GUID(CLSID_AutoComplete,
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0x00bb2763, 0x6a77, 0x11d0, 0xa5, 0x35, 0x00, 0xc0, 0x4f, 0xd7, 0xd0, 0x62);
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class wxIEnumString : public IEnumString
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{
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public:
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wxIEnumString(const wxArrayString& strings) : m_strings(strings)
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{
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m_index = 0;
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}
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DECLARE_IUNKNOWN_METHODS;
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virtual HRESULT STDMETHODCALLTYPE Next(ULONG celt,
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LPOLESTR *rgelt,
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ULONG *pceltFetched)
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{
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if ( !rgelt || (!pceltFetched && celt > 1) )
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return E_POINTER;
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ULONG pceltFetchedDummy;
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if ( !pceltFetched )
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pceltFetched = &pceltFetchedDummy;
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*pceltFetched = 0;
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for ( const unsigned count = m_strings.size(); celt--; ++m_index )
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{
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if ( m_index == count )
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return S_FALSE;
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const wxWX2WCbuf wcbuf(m_strings[m_index].wc_str());
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const size_t size = (wcslen(wcbuf) + 1)*sizeof(wchar_t);
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void *olestr = CoTaskMemAlloc(size);
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if ( !olestr )
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return E_OUTOFMEMORY;
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memcpy(olestr, wcbuf, size);
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*rgelt++ = wx_static_cast(LPOLESTR, olestr);
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++(*pceltFetched);
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}
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return S_OK;
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}
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virtual HRESULT STDMETHODCALLTYPE Skip(ULONG celt)
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{
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m_index += celt;
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if ( m_index > m_strings.size() )
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{
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m_index = m_strings.size();
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return S_FALSE;
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}
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return S_OK;
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}
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virtual HRESULT STDMETHODCALLTYPE Reset()
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{
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m_index = 0;
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return S_OK;
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}
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virtual HRESULT STDMETHODCALLTYPE Clone(IEnumString **ppEnum)
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{
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if ( !ppEnum )
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return E_POINTER;
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wxIEnumString *e = new wxIEnumString(m_strings);
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e->m_index = m_index;
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e->AddRef();
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*ppEnum = e;
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return S_OK;
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}
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private:
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const wxArrayString m_strings;
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unsigned m_index;
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DECLARE_NO_COPY_CLASS(wxIEnumString)
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};
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BEGIN_IID_TABLE(wxIEnumString)
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ADD_IID(Unknown)
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ADD_IID(EnumString)
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END_IID_TABLE;
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IMPLEMENT_IUNKNOWN_METHODS(wxIEnumString)
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#endif // wxUSE_OLE
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// ============================================================================
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// wxTextEntry implementation
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// ============================================================================
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// ----------------------------------------------------------------------------
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// operations on text
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// ----------------------------------------------------------------------------
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void wxTextEntry::WriteText(const wxString& text)
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{
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::SendMessage(GetEditHwnd(), EM_REPLACESEL, 0, (LPARAM)text.wx_str());
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@ -60,6 +169,10 @@ void wxTextEntry::Remove(long from, long to)
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WriteText(wxString());
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}
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// ----------------------------------------------------------------------------
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// clipboard operations
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// ----------------------------------------------------------------------------
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void wxTextEntry::Copy()
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{
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::SendMessage(GetEditHwnd(), WM_COPY, 0, 0);
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@ -75,6 +188,10 @@ void wxTextEntry::Paste()
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::SendMessage(GetEditHwnd(), WM_PASTE, 0, 0);
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}
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// ----------------------------------------------------------------------------
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// undo/redo
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// ----------------------------------------------------------------------------
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void wxTextEntry::Undo()
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{
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::SendMessage(GetEditHwnd(), EM_UNDO, 0, 0);
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@ -98,6 +215,10 @@ bool wxTextEntry::CanRedo() const
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return CanUndo();
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}
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// ----------------------------------------------------------------------------
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// insertion point and selection
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// ----------------------------------------------------------------------------
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void wxTextEntry::SetInsertionPoint(long pos)
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{
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// be careful to call DoSetSelection() which is overridden in wxTextCtrl
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@ -140,6 +261,12 @@ void wxTextEntry::GetSelection(long *from, long *to) const
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*to = dwEnd;
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}
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// ----------------------------------------------------------------------------
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// auto-completion
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// ----------------------------------------------------------------------------
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#if wxUSE_OLE
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bool wxTextEntry::AutoCompleteFileNames()
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{
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typedef HRESULT (WINAPI *SHAutoComplete_t)(HWND, DWORD);
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@ -173,6 +300,65 @@ bool wxTextEntry::AutoCompleteFileNames()
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return true;
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}
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bool wxTextEntry::AutoComplete(const wxArrayString& choices)
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{
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// create an object exposing IAutoComplete interface (don't go for
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// IAutoComplete2 immediately as, presumably, it might be not available on
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// older systems as otherwise why do we have both -- although in practice I
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// don't know when can this happen)
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IAutoComplete *pAutoComplete = NULL;
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HRESULT hr = CoCreateInstance
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(
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CLSID_AutoComplete,
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NULL,
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CLSCTX_INPROC_SERVER,
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IID_IAutoComplete,
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wx_reinterpret_cast(void **, &pAutoComplete)
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);
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if ( FAILED(hr) )
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{
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wxLogApiError(_T("CoCreateInstance(CLSID_AutoComplete)"), hr);
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return false;
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}
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// associate it with our strings
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wxIEnumString *pEnumString = new wxIEnumString(choices);
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pEnumString->AddRef();
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hr = pAutoComplete->Init(GetEditHwnd(), pEnumString, NULL, NULL);
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pEnumString->Release();
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if ( FAILED(hr) )
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{
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wxLogApiError(_T("IAutoComplete::Init"), hr);
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return false;
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}
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// if IAutoComplete2 is available, set more user-friendly options
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IAutoComplete2 *pAutoComplete2 = NULL;
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hr = pAutoComplete->QueryInterface
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(
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IID_IAutoComplete2,
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wx_reinterpret_cast(void **, &pAutoComplete2)
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);
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if ( SUCCEEDED(hr) )
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{
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pAutoComplete2->SetOptions(ACO_AUTOSUGGEST | ACO_UPDOWNKEYDROPSLIST);
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pAutoComplete2->Release();
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}
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// the docs are unclear about when can we release it but it seems safe to
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// do it immediately, presumably the edit control itself keeps a reference
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// to the auto completer object
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pAutoComplete->Release();
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return true;
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}
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#endif // wxUSE_OLE
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// ----------------------------------------------------------------------------
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// editable state
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// ----------------------------------------------------------------------------
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bool wxTextEntry::IsEditable() const
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{
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return !(::GetWindowLong(GetEditHwnd(), GWL_STYLE) & ES_READONLY);
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@ -183,6 +369,10 @@ void wxTextEntry::SetEditable(bool editable)
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::SendMessage(GetEditHwnd(), EM_SETREADONLY, !editable, 0);
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}
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// ----------------------------------------------------------------------------
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// max length
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// ----------------------------------------------------------------------------
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void wxTextEntry::SetMaxLength(unsigned long len)
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{
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if ( len >= 0xffff )
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