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Diffstat (limited to 'src/gui/guikernel/qole_win.cpp')
| -rw-r--r-- | src/gui/guikernel/qole_win.cpp | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/src/gui/guikernel/qole_win.cpp b/src/gui/guikernel/qole_win.cpp new file mode 100644 index 0000000000..24e2d5b292 --- /dev/null +++ b/src/gui/guikernel/qole_win.cpp @@ -0,0 +1,255 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qdnd_p.h" + +#if !(defined(QT_NO_DRAGANDDROP) && defined(QT_NO_CLIPBOARD)) + +#if defined(Q_OS_WINCE) +#include <shlobj.h> +#include "qguifunctions_wince.h" +#endif + +QT_BEGIN_NAMESPACE + +QOleEnumFmtEtc::QOleEnumFmtEtc(const QVector<FORMATETC> &fmtetcs) +{ + m_isNull = false; + m_dwRefs = 1; + m_nIndex = 0; + + for (int idx = 0; idx < fmtetcs.count(); ++idx) { + LPFORMATETC destetc = new FORMATETC(); + if (copyFormatEtc(destetc, (LPFORMATETC)&(fmtetcs.at(idx)))) { + m_lpfmtetcs.append(destetc); + } else { + m_isNull = true; + delete destetc; + break; + } + } +} + +QOleEnumFmtEtc::QOleEnumFmtEtc(const QVector<LPFORMATETC> &lpfmtetcs) +{ + m_isNull = false; + m_dwRefs = 1; + m_nIndex = 0; + + for (int idx = 0; idx < lpfmtetcs.count(); ++idx) { + LPFORMATETC srcetc = lpfmtetcs.at(idx); + LPFORMATETC destetc = new FORMATETC(); + if (copyFormatEtc(destetc, srcetc)) { + m_lpfmtetcs.append(destetc); + } else { + m_isNull = true; + delete destetc; + break; + } + } +} + +QOleEnumFmtEtc::~QOleEnumFmtEtc() +{ + LPMALLOC pmalloc; + +#if !defined(Q_OS_WINCE) + if (CoGetMalloc(MEMCTX_TASK, &pmalloc) == NOERROR) { +#else + if (SHGetMalloc(&pmalloc) == NOERROR) { +#endif + for (int idx = 0; idx < m_lpfmtetcs.count(); ++idx) { + LPFORMATETC tmpetc = m_lpfmtetcs.at(idx); + if (tmpetc->ptd) + pmalloc->Free(tmpetc->ptd); + delete tmpetc; + } + + pmalloc->Release(); + } + m_lpfmtetcs.clear(); +} + +bool QOleEnumFmtEtc::isNull() const +{ + return m_isNull; +} + +// IUnknown methods +STDMETHODIMP +QOleEnumFmtEtc::QueryInterface(REFIID riid, void FAR* FAR* ppvObj) +{ + if (riid == IID_IUnknown || riid == IID_IEnumFORMATETC) { + *ppvObj = this; + AddRef(); + return NOERROR; + } + *ppvObj = NULL; + return ResultFromScode(E_NOINTERFACE); +} + +STDMETHODIMP_(ULONG) +QOleEnumFmtEtc::AddRef(void) +{ + return ++m_dwRefs; +} + +STDMETHODIMP_(ULONG) +QOleEnumFmtEtc::Release(void) +{ + if (--m_dwRefs == 0) { + delete this; + return 0; + } + return m_dwRefs; +} + +// IEnumFORMATETC methods +STDMETHODIMP +QOleEnumFmtEtc::Next(ULONG celt, LPFORMATETC rgelt, ULONG FAR* pceltFetched) +{ + ULONG i=0; + ULONG nOffset; + + if (rgelt == NULL) + return ResultFromScode(E_INVALIDARG); + + while (i < celt) { + nOffset = m_nIndex + i; + + if (nOffset < ULONG(m_lpfmtetcs.count())) { + copyFormatEtc((LPFORMATETC)&(rgelt[i]), m_lpfmtetcs.at(nOffset)); + i++; + } else { + break; + } + } + + m_nIndex += (WORD)i; + + if (pceltFetched != NULL) + *pceltFetched = i; + + if (i != celt) + return ResultFromScode(S_FALSE); + + return NOERROR; +} + +STDMETHODIMP +QOleEnumFmtEtc::Skip(ULONG celt) +{ + ULONG i=0; + ULONG nOffset; + + while (i < celt) { + nOffset = m_nIndex + i; + + if (nOffset < ULONG(m_lpfmtetcs.count())) { + i++; + } else { + break; + } + } + + m_nIndex += (WORD)i; + + if (i != celt) + return ResultFromScode(S_FALSE); + + return NOERROR; +} + +STDMETHODIMP +QOleEnumFmtEtc::Reset() +{ + m_nIndex = 0; + return NOERROR; +} + +STDMETHODIMP +QOleEnumFmtEtc::Clone(LPENUMFORMATETC FAR* newEnum) +{ + if (newEnum == NULL) + return ResultFromScode(E_INVALIDARG); + + QOleEnumFmtEtc *result = new QOleEnumFmtEtc(m_lpfmtetcs); + result->m_nIndex = m_nIndex; + + if (result->isNull()) { + delete result; + return ResultFromScode(E_OUTOFMEMORY); + } else { + *newEnum = result; + } + + return NOERROR; +} + +bool QOleEnumFmtEtc::copyFormatEtc(LPFORMATETC dest, LPFORMATETC src) const +{ + if (dest == NULL || src == NULL) + return false; + + *dest = *src; + + if (src->ptd) { + LPVOID pout; + LPMALLOC pmalloc; + +#if !defined(Q_OS_WINCE) + if (CoGetMalloc(MEMCTX_TASK, &pmalloc) != NOERROR) +#else + if (SHGetMalloc(&pmalloc) != NOERROR) +#endif + return false; + + pout = (LPVOID)pmalloc->Alloc(src->ptd->tdSize); + memcpy(dest->ptd, src->ptd, size_t(src->ptd->tdSize)); + + pmalloc->Release(); + } + + return true; +} + +QT_END_NAMESPACE +#endif // QT_NO_DRAGANDDROP && QT_NO_CLIPBOARD |