X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5ad3f0c8d15b36923accc2f76ab520ea8ddacef0..dd9f8b6bb6935360a8271dc3e8749fb026b601a8:/src/msw/textentry.cpp diff --git a/src/msw/textentry.cpp b/src/msw/textentry.cpp index d07b8a93c2..b763b5de8e 100644 --- a/src/msw/textentry.cpp +++ b/src/msw/textentry.cpp @@ -24,19 +24,157 @@ #endif #ifndef WX_PRECOMP + #include "wx/arrstr.h" #include "wx/string.h" #endif // WX_PRECOMP +#if wxUSE_TEXTCTRL || wxUSE_COMBOBOX + #include "wx/textentry.h" +#include "wx/dynlib.h" #include "wx/msw/private.h" #define GetEditHwnd() ((HWND)(GetEditHWND())) +// ---------------------------------------------------------------------------- +// wxIEnumString implements IEnumString interface +// ---------------------------------------------------------------------------- + +// standard VC6 SDK (WINVER == 0x0400) does not know about IAutoComplete +#if wxUSE_OLE && (WINVER >= 0x0500) + #define HAS_AUTOCOMPLETE +#endif + +#ifdef HAS_AUTOCOMPLETE + +#include "wx/msw/ole/oleutils.h" +#include + +#if defined(__MINGW32__) || defined (__WATCOMC__) + // needed for IID_IAutoComplete, IID_IAutoComplete2 and ACO_AUTOSUGGEST + #include +#endif + +#ifndef ACO_UPDOWNKEYDROPSLIST + #define ACO_UPDOWNKEYDROPSLIST 0x20 +#endif + +#ifndef SHACF_FILESYS_ONLY + #define SHACF_FILESYS_ONLY 0x00000010 +#endif + +DEFINE_GUID(CLSID_AutoComplete, + 0x00bb2763, 0x6a77, 0x11d0, 0xa5, 0x35, 0x00, 0xc0, 0x4f, 0xd7, 0xd0, 0x62); + +class wxIEnumString : public IEnumString +{ +public: + wxIEnumString(const wxArrayString& strings) : m_strings(strings) + { + m_index = 0; + } + + DECLARE_IUNKNOWN_METHODS; + + virtual HRESULT STDMETHODCALLTYPE Next(ULONG celt, + LPOLESTR *rgelt, + ULONG *pceltFetched) + { + if ( !rgelt || (!pceltFetched && celt > 1) ) + return E_POINTER; + + ULONG pceltFetchedDummy; + if ( !pceltFetched ) + pceltFetched = &pceltFetchedDummy; + + *pceltFetched = 0; + + for ( const unsigned count = m_strings.size(); celt--; ++m_index ) + { + if ( m_index == count ) + return S_FALSE; + + const wxWX2WCbuf wcbuf = m_strings[m_index].wc_str(); + const size_t size = (wcslen(wcbuf) + 1)*sizeof(wchar_t); + void *olestr = CoTaskMemAlloc(size); + if ( !olestr ) + return E_OUTOFMEMORY; + + memcpy(olestr, wcbuf, size); + + *rgelt++ = wx_static_cast(LPOLESTR, olestr); + + ++(*pceltFetched); + } + + return S_OK; + } + + virtual HRESULT STDMETHODCALLTYPE Skip(ULONG celt) + { + m_index += celt; + if ( m_index > m_strings.size() ) + { + m_index = m_strings.size(); + return S_FALSE; + } + + return S_OK; + } + + virtual HRESULT STDMETHODCALLTYPE Reset() + { + m_index = 0; + + return S_OK; + } + + virtual HRESULT STDMETHODCALLTYPE Clone(IEnumString **ppEnum) + { + if ( !ppEnum ) + return E_POINTER; + + wxIEnumString *e = new wxIEnumString(m_strings); + e->m_index = m_index; + + e->AddRef(); + *ppEnum = e; + + return S_OK; + } + +private: + // dtor doesn't have to be virtual as we're only ever deleted from our own + // Release() and are not meant to be derived form anyhow, but making it + // virtual silences gcc warnings; making it private makes it impossible to + // (mistakenly) delete us directly instead of calling Release() + virtual ~wxIEnumString() { } + + + const wxArrayString m_strings; + unsigned m_index; + + DECLARE_NO_COPY_CLASS(wxIEnumString) +}; + +BEGIN_IID_TABLE(wxIEnumString) + ADD_IID(Unknown) + ADD_IID(EnumString) +END_IID_TABLE; + +IMPLEMENT_IUNKNOWN_METHODS(wxIEnumString) + +#endif // HAS_AUTOCOMPLETE + // ============================================================================ // wxTextEntry implementation // ============================================================================ +// ---------------------------------------------------------------------------- +// operations on text +// ---------------------------------------------------------------------------- + void wxTextEntry::WriteText(const wxString& text) { ::SendMessage(GetEditHwnd(), EM_REPLACESEL, 0, (LPARAM)text.wx_str()); @@ -53,6 +191,10 @@ void wxTextEntry::Remove(long from, long to) WriteText(wxString()); } +// ---------------------------------------------------------------------------- +// clipboard operations +// ---------------------------------------------------------------------------- + void wxTextEntry::Copy() { ::SendMessage(GetEditHwnd(), WM_COPY, 0, 0); @@ -68,6 +210,10 @@ void wxTextEntry::Paste() ::SendMessage(GetEditHwnd(), WM_PASTE, 0, 0); } +// ---------------------------------------------------------------------------- +// undo/redo +// ---------------------------------------------------------------------------- + void wxTextEntry::Undo() { ::SendMessage(GetEditHwnd(), EM_UNDO, 0, 0); @@ -91,6 +237,10 @@ bool wxTextEntry::CanRedo() const return CanUndo(); } +// ---------------------------------------------------------------------------- +// insertion point and selection +// ---------------------------------------------------------------------------- + void wxTextEntry::SetInsertionPoint(long pos) { // be careful to call DoSetSelection() which is overridden in wxTextCtrl @@ -133,6 +283,106 @@ void wxTextEntry::GetSelection(long *from, long *to) const *to = dwEnd; } +// ---------------------------------------------------------------------------- +// auto-completion +// ---------------------------------------------------------------------------- + +bool wxTextEntry::AutoCompleteFileNames() +{ +#ifdef HAS_AUTOCOMPLETE + typedef HRESULT (WINAPI *SHAutoComplete_t)(HWND, DWORD); + static SHAutoComplete_t s_pfnSHAutoComplete = (SHAutoComplete_t)-1; + static wxDynamicLibrary s_dllShlwapi; + if ( s_pfnSHAutoComplete == (SHAutoComplete_t)-1 ) + { + if ( !s_dllShlwapi.Load(_T("shlwapi.dll"), wxDL_VERBATIM | wxDL_QUIET) ) + { + s_pfnSHAutoComplete = NULL; + } + else + { + wxDL_INIT_FUNC(s_pfn, SHAutoComplete, s_dllShlwapi); + } + } + + if ( !s_pfnSHAutoComplete ) + return false; + + HRESULT hr = (*s_pfnSHAutoComplete)(GetEditHwnd(), SHACF_FILESYS_ONLY); + if ( FAILED(hr) ) + { + wxLogApiError(_T("SHAutoComplete()"), hr); + + return false; + } + return true; +#else // !HAS_AUTOCOMPLETE + return false; +#endif // HAS_AUTOCOMPLETE/!HAS_AUTOCOMPLETE +} + +bool wxTextEntry::AutoComplete(const wxArrayString& choices) +{ +#ifdef HAS_AUTOCOMPLETE + // create an object exposing IAutoComplete interface (don't go for + // IAutoComplete2 immediately as, presumably, it might be not available on + // older systems as otherwise why do we have both -- although in practice I + // don't know when can this happen) + IAutoComplete *pAutoComplete = NULL; + HRESULT hr = CoCreateInstance + ( + CLSID_AutoComplete, + NULL, + CLSCTX_INPROC_SERVER, + IID_IAutoComplete, + wx_reinterpret_cast(void **, &pAutoComplete) + ); + if ( FAILED(hr) ) + { + wxLogApiError(_T("CoCreateInstance(CLSID_AutoComplete)"), hr); + return false; + } + + // associate it with our strings + wxIEnumString *pEnumString = new wxIEnumString(choices); + pEnumString->AddRef(); + hr = pAutoComplete->Init(GetEditHwnd(), pEnumString, NULL, NULL); + pEnumString->Release(); + if ( FAILED(hr) ) + { + wxLogApiError(_T("IAutoComplete::Init"), hr); + return false; + } + + // if IAutoComplete2 is available, set more user-friendly options + IAutoComplete2 *pAutoComplete2 = NULL; + hr = pAutoComplete->QueryInterface + ( + IID_IAutoComplete2, + wx_reinterpret_cast(void **, &pAutoComplete2) + ); + if ( SUCCEEDED(hr) ) + { + pAutoComplete2->SetOptions(ACO_AUTOSUGGEST | ACO_UPDOWNKEYDROPSLIST); + pAutoComplete2->Release(); + } + + // the docs are unclear about when can we release it but it seems safe to + // do it immediately, presumably the edit control itself keeps a reference + // to the auto completer object + pAutoComplete->Release(); + return true; +#else // !HAS_AUTOCOMPLETE + wxUnusedVar(choices); + + return false; +#endif // HAS_AUTOCOMPLETE/!HAS_AUTOCOMPLETE +} + +// ---------------------------------------------------------------------------- +// editable state +// ---------------------------------------------------------------------------- + bool wxTextEntry::IsEditable() const { return !(::GetWindowLong(GetEditHwnd(), GWL_STYLE) & ES_READONLY); @@ -143,6 +393,10 @@ void wxTextEntry::SetEditable(bool editable) ::SendMessage(GetEditHwnd(), EM_SETREADONLY, !editable, 0); } +// ---------------------------------------------------------------------------- +// max length +// ---------------------------------------------------------------------------- + void wxTextEntry::SetMaxLength(unsigned long len) { if ( len >= 0xffff ) @@ -154,3 +408,5 @@ void wxTextEntry::SetMaxLength(unsigned long len) ::SendMessage(GetEditHwnd(), EM_LIMITTEXT, len, 0); } + +#endif // wxUSE_TEXTCTRL || wxUSE_COMBOBOX