diff options
Diffstat (limited to 'src/plugins/platforms/windows/accessible/comutils.cpp')
| -rw-r--r-- | src/plugins/platforms/windows/accessible/comutils.cpp | 641 |
1 files changed, 641 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/accessible/comutils.cpp b/src/plugins/platforms/windows/accessible/comutils.cpp new file mode 100644 index 0000000000..9a0fce20b8 --- /dev/null +++ b/src/plugins/platforms/windows/accessible/comutils.cpp @@ -0,0 +1,641 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#include <ocidl.h> +#include <olectl.h> + +#include "comutils.h" +#include <QtCore/qdatetime.h> +#include <QtGui/qpixmap.h> +#include <QtGui/qfont.h> + + +#include <QtCore/qvariant.h> +#include <QtCore/qbytearray.h> +#include <QtGui/qcolor.h> + +static DATE QDateTimeToDATE(const QDateTime &dt) +{ + if (!dt.isValid() || dt.isNull()) + return 949998; // Special value for no date (01/01/4501) + + SYSTEMTIME stime; + memset(&stime, 0, sizeof(stime)); + QDate date = dt.date(); + QTime time = dt.time(); + if (date.isValid() && !date.isNull()) { + stime.wDay = date.day(); + stime.wMonth = date.month(); + stime.wYear = date.year(); + } + if (time.isValid() && !time.isNull()) { + stime.wMilliseconds = time.msec(); + stime.wSecond = time.second(); + stime.wMinute = time.minute(); + stime.wHour = time.hour(); + } + + double vtime; + SystemTimeToVariantTime(&stime, &vtime); + + return vtime; +} + +inline uint QColorToOLEColor(const QColor &col) +{ + return qRgba(col.blue(), col.green(), col.red(), 0x00); +} + +bool QVariantToVARIANT(const QVariant &var, VARIANT &arg, const QByteArray &typeName, bool out) +{ + QVariant qvar = var; + // "type" is the expected type, so coerce if necessary + QVariant::Type proptype = typeName.isEmpty() ? QVariant::Invalid : QVariant::nameToType(typeName); + if (proptype == QVariant::UserType && !typeName.isEmpty()) { + if (typeName == "short" || typeName == "char") + proptype = QVariant::Int; + else if (typeName == "float") + proptype = QVariant::Double; + } + if (proptype != QVariant::Invalid && proptype != QVariant::UserType && proptype != qvar.type()) { + if (qvar.canConvert(proptype)) + qvar.convert(proptype); + else + qvar = QVariant(proptype); + } + + if (out && arg.vt == (VT_VARIANT|VT_BYREF) && arg.pvarVal) { + return QVariantToVARIANT(var, *arg.pvarVal, typeName, false); + } + + if (out && proptype == QVariant::UserType && typeName == "QVariant") { + VARIANT *pVariant = new VARIANT; + QVariantToVARIANT(var, *pVariant, QByteArray(), false); + arg.vt = VT_VARIANT|VT_BYREF; + arg.pvarVal = pVariant; + return true; + } + + switch ((int)qvar.type()) { + case QVariant::String: + if (out && arg.vt == (VT_BSTR|VT_BYREF)) { + if (*arg.pbstrVal) + SysFreeString(*arg.pbstrVal); + *arg.pbstrVal = QStringToBSTR(qvar.toString()); + arg.vt = VT_BSTR|VT_BYREF; + } else { + arg.vt = VT_BSTR; + arg.bstrVal = QStringToBSTR(qvar.toString()); + if (out) { + arg.pbstrVal = new BSTR(arg.bstrVal); + arg.vt |= VT_BYREF; + } + } + break; + + case QVariant::Int: + if (out && arg.vt == (VT_I4|VT_BYREF)) { + *arg.plVal = qvar.toInt(); + } else { + arg.vt = VT_I4; + arg.lVal = qvar.toInt(); + if (out) { + if (typeName == "short") { + arg.vt = VT_I2; + arg.piVal = new short(arg.lVal); + } else if (typeName == "char") { + arg.vt = VT_I1; + arg.pcVal= new char(arg.lVal); + } else { + arg.plVal = new long(arg.lVal); + } + arg.vt |= VT_BYREF; + } + } + break; + + case QVariant::UInt: + if (out && (arg.vt == (VT_UINT|VT_BYREF) || arg.vt == (VT_I4|VT_BYREF))) { + *arg.puintVal = qvar.toUInt(); + } else { + arg.vt = VT_UINT; + arg.uintVal = qvar.toUInt(); + if (out) { + arg.puintVal = new uint(arg.uintVal); + arg.vt |= VT_BYREF; + } + } + break; + + case QVariant::LongLong: + if (out && arg.vt == (VT_CY|VT_BYREF)) { + arg.pcyVal->int64 = qvar.toLongLong(); +#if !defined(Q_OS_WINCE) && defined(_MSC_VER) && _MSC_VER >= 1400 + } else if (out && arg.vt == (VT_I8|VT_BYREF)) { + *arg.pllVal = qvar.toLongLong(); + } else { + arg.vt = VT_I8; + arg.llVal = qvar.toLongLong(); + if (out) { + arg.pllVal = new LONGLONG(arg.llVal); + arg.vt |= VT_BYREF; + } + } +#else + } else { + arg.vt = VT_CY; + arg.cyVal.int64 = qvar.toLongLong(); + if (out) { + arg.pcyVal = new CY(arg.cyVal); + arg.vt |= VT_BYREF; + } + } +#endif + break; + + case QVariant::ULongLong: + if (out && arg.vt == (VT_CY|VT_BYREF)) { + arg.pcyVal->int64 = qvar.toULongLong(); +#if !defined(Q_OS_WINCE) && defined(_MSC_VER) && _MSC_VER >= 1400 + } else if (out && arg.vt == (VT_UI8|VT_BYREF)) { + *arg.pullVal = qvar.toULongLong(); + } else { + arg.vt = VT_UI8; + arg.ullVal = qvar.toULongLong(); + if (out) { + arg.pullVal = new ULONGLONG(arg.ullVal); + arg.vt |= VT_BYREF; + } + } +#else + } else { + arg.vt = VT_CY; + arg.cyVal.int64 = qvar.toULongLong(); + if (out) { + arg.pcyVal = new CY(arg.cyVal); + arg.vt |= VT_BYREF; + } + } + +#endif + + break; + + case QVariant::Bool: + if (out && arg.vt == (VT_BOOL|VT_BYREF)) { + *arg.pboolVal = qvar.toBool() ? VARIANT_TRUE : VARIANT_FALSE; + } else { + arg.vt = VT_BOOL; + arg.boolVal = qvar.toBool() ? VARIANT_TRUE : VARIANT_FALSE; + if (out) { + arg.pboolVal = new short(arg.boolVal); + arg.vt |= VT_BYREF; + } + } + break; + case QVariant::Double: + if (out && arg.vt == (VT_R8|VT_BYREF)) { + *arg.pdblVal = qvar.toDouble(); + } else { + arg.vt = VT_R8; + arg.dblVal = qvar.toDouble(); + if (out) { + if (typeName == "float") { + arg.vt = VT_R4; + arg.pfltVal = new float(arg.dblVal); + } else { + arg.pdblVal = new double(arg.dblVal); + } + arg.vt |= VT_BYREF; + } + } + break; + case QVariant::Color: + if (out && arg.vt == (VT_COLOR|VT_BYREF)) { + + *arg.plVal = QColorToOLEColor(qvariant_cast<QColor>(qvar)); + } else { + arg.vt = VT_COLOR; + arg.lVal = QColorToOLEColor(qvariant_cast<QColor>(qvar)); + if (out) { + arg.plVal = new long(arg.lVal); + arg.vt |= VT_BYREF; + } + } + break; + + case QVariant::Date: + case QVariant::Time: + case QVariant::DateTime: + if (out && arg.vt == (VT_DATE|VT_BYREF)) { + *arg.pdate = QDateTimeToDATE(qvar.toDateTime()); + } else { + arg.vt = VT_DATE; + arg.date = QDateTimeToDATE(qvar.toDateTime()); + if (out) { + arg.pdate = new DATE(arg.date); + arg.vt |= VT_BYREF; + } + } + break; +#if 0 // not a value with min/max semantics + case QVariant::Font: + if (out && arg.vt == (VT_DISPATCH|VT_BYREF)) { + if (*arg.ppdispVal) + (*arg.ppdispVal)->Release(); + *arg.ppdispVal = QFontToIFont(qvariant_cast<QFont>(qvar)); + } else { + arg.vt = VT_DISPATCH; + arg.pdispVal = QFontToIFont(qvariant_cast<QFont>(qvar)); + if (out) { + arg.ppdispVal = new IDispatch*(arg.pdispVal); + arg.vt |= VT_BYREF; + } + } + break; + case QVariant::Pixmap: + if (out && arg.vt == (VT_DISPATCH|VT_BYREF)) { + if (*arg.ppdispVal) + (*arg.ppdispVal)->Release(); + *arg.ppdispVal = QPixmapToIPicture(qvariant_cast<QPixmap>(qvar)); + } else { + arg.vt = VT_DISPATCH; + arg.pdispVal = QPixmapToIPicture(qvariant_cast<QPixmap>(qvar)); + if (out) { + arg.ppdispVal = new IDispatch*(arg.pdispVal); + arg.vt |= VT_BYREF; + } + } + break; + case QVariant::Cursor: + { +#ifndef QT_NO_CURSOR + int shape = qvariant_cast<QCursor>(qvar).shape(); + if (out && (arg.vt & VT_BYREF)) { + switch (arg.vt & ~VT_BYREF) { + case VT_I4: + *arg.plVal = shape; + break; + case VT_I2: + *arg.piVal = shape; + break; + case VT_UI4: + *arg.pulVal = shape; + break; + case VT_UI2: + *arg.puiVal = shape; + break; + case VT_INT: + *arg.pintVal = shape; + break; + case VT_UINT: + *arg.puintVal = shape; + break; + } + } else { + arg.vt = VT_I4; + arg.lVal = shape; + if (out) { + arg.plVal = new long(arg.lVal); + arg.vt |= VT_BYREF; + } + } +#endif + } + break; + + case QVariant::List: + { + const QList<QVariant> list = qvar.toList(); + const int count = list.count(); + VARTYPE vt = VT_VARIANT; + QVariant::Type listType = QVariant::LastType; // == QVariant + if (!typeName.isEmpty() && typeName.startsWith("QList<")) { + const QByteArray listTypeName = typeName.mid(6, typeName.length() - 7); // QList<int> -> int + listType = QVariant::nameToType(listTypeName); + } + + VARIANT variant; + void *pElement = &variant; + switch (listType) { + case QVariant::Int: + vt = VT_I4; + pElement = &variant.lVal; + break; + case QVariant::Double: + vt = VT_R8; + pElement = &variant.dblVal; + break; + case QVariant::DateTime: + vt = VT_DATE; + pElement = &variant.date; + break; + case QVariant::Bool: + vt = VT_BOOL; + pElement = &variant.boolVal; + break; + case QVariant::LongLong: +#if !defined(Q_OS_WINCE) && defined(_MSC_VER) && _MSC_VER >= 1400 + vt = VT_I8; + pElement = &variant.llVal; +#else + vt = VT_CY; + pElement = &variant.cyVal; +#endif + break; + default: + break; + } + SAFEARRAY *array = 0; + bool is2D = false; + // If the first element in the array is a list the whole list is + // treated as a 2D array. The column count is taken from the 1st element. + if (count) { + QVariantList col = list.at(0).toList(); + int maxColumns = col.count(); + if (maxColumns) { + is2D = true; + SAFEARRAYBOUND rgsabound[2] = { {0} }; + rgsabound[0].cElements = count; + rgsabound[1].cElements = maxColumns; + array = SafeArrayCreate(VT_VARIANT, 2, rgsabound); + LONG rgIndices[2]; + for (LONG i = 0; i < count; ++i) { + rgIndices[0] = i; + QVariantList columns = list.at(i).toList(); + int columnCount = qMin(maxColumns, columns.count()); + for (LONG j = 0; j < columnCount; ++j) { + QVariant elem = columns.at(j); + VariantInit(&variant); + QVariantToVARIANT(elem, variant, elem.typeName()); + rgIndices[1] = j; + SafeArrayPutElement(array, rgIndices, pElement); + clearVARIANT(&variant); + } + } + + } + } + if (!is2D) { + array = SafeArrayCreateVector(vt, 0, count); + for (LONG index = 0; index < count; ++index) { + QVariant elem = list.at(index); + if (listType != QVariant::LastType) + elem.convert(listType); + VariantInit(&variant); + QVariantToVARIANT(elem, variant, elem.typeName()); + SafeArrayPutElement(array, &index, pElement); + clearVARIANT(&variant); + } + } + if (out && arg.vt == (VT_ARRAY|vt|VT_BYREF)) { + if (*arg.pparray) + SafeArrayDestroy(*arg.pparray); + *arg.pparray = array; + } else { + arg.vt = VT_ARRAY|vt; + arg.parray = array; + if (out) { + arg.pparray = new SAFEARRAY*(arg.parray); + arg.vt |= VT_BYREF; + } + } + } + break; + + case QVariant::StringList: + { + const QStringList list = qvar.toStringList(); + const int count = list.count(); + SAFEARRAY *array = SafeArrayCreateVector(VT_BSTR, 0, count); + for (LONG index = 0; index < count; ++index) { + QString elem = list.at(index); + BSTR bstr = QStringToBSTR(elem); + SafeArrayPutElement(array, &index, bstr); + SysFreeString(bstr); + } + + if (out && arg.vt == (VT_ARRAY|VT_BSTR|VT_BYREF)) { + if (*arg.pparray) + SafeArrayDestroy(*arg.pparray); + *arg.pparray = array; + } else { + arg.vt = VT_ARRAY|VT_BSTR; + arg.parray = array; + if (out) { + arg.pparray = new SAFEARRAY*(arg.parray); + arg.vt |= VT_BYREF; + } + } + } + break; + + case QVariant::ByteArray: + { + const QByteArray bytes = qvar.toByteArray(); + const uint count = bytes.count(); + SAFEARRAY *array = SafeArrayCreateVector(VT_UI1, 0, count); + if (count) { + const char *data = bytes.constData(); + char *dest; + SafeArrayAccessData(array, (void **)&dest); + memcpy(dest, data, count); + SafeArrayUnaccessData(array); + } + + if (out && arg.vt == (VT_ARRAY|VT_UI1|VT_BYREF)) { + if (*arg.pparray) + SafeArrayDestroy(*arg.pparray); + *arg.pparray = array; + } else { + arg.vt = VT_ARRAY|VT_UI1; + arg.parray = array; + if (out) { + arg.pparray = new SAFEARRAY*(arg.parray); + arg.vt |= VT_BYREF; + } + } + } + break; + +#ifdef QAX_SERVER + case QVariant::Rect: + case QVariant::Size: + case QVariant::Point: + { + typedef HRESULT(WINAPI* PGetRecordInfoFromTypeInfo)(ITypeInfo *, IRecordInfo **); + static PGetRecordInfoFromTypeInfo pGetRecordInfoFromTypeInfo = 0; + static bool resolved = false; + if (!resolved) { + QSystemLibrary oleaut32(QLatin1String("oleaut32")); + pGetRecordInfoFromTypeInfo = (PGetRecordInfoFromTypeInfo)oleaut32.resolve("GetRecordInfoFromTypeInfo"); + resolved = true; + } + if (!pGetRecordInfoFromTypeInfo) + break; + + ITypeInfo *typeInfo = 0; + IRecordInfo *recordInfo = 0; + CLSID clsid = qvar.type() == QVariant::Rect ? CLSID_QRect + :qvar.type() == QVariant::Size ? CLSID_QSize + :CLSID_QPoint; + qAxTypeLibrary->GetTypeInfoOfGuid(clsid, &typeInfo); + if (!typeInfo) + break; + pGetRecordInfoFromTypeInfo(typeInfo, &recordInfo); + typeInfo->Release(); + if (!recordInfo) + break; + + void *record = 0; + switch (qvar.type()) { + case QVariant::Rect: + { + QRect qrect(qvar.toRect()); + recordInfo->RecordCreateCopy(&qrect, &record); + } + break; + case QVariant::Size: + { + QSize qsize(qvar.toSize()); + recordInfo->RecordCreateCopy(&qsize, &record); + } + break; + case QVariant::Point: + { + QPoint qpoint(qvar.toPoint()); + recordInfo->RecordCreateCopy(&qpoint, &record); + } + break; + } + + arg.vt = VT_RECORD; + arg.pRecInfo = recordInfo, + arg.pvRecord = record; + if (out) { + qWarning("QVariantToVARIANT: out-parameter not supported for records"); + return false; + } + } + break; +#endif // QAX_SERVER + case QVariant::UserType: + { + QByteArray subType = qvar.typeName(); +#ifdef QAX_SERVER + if (subType.endsWith('*')) + subType.truncate(subType.length() - 1); +#endif + if (!qstrcmp(qvar.typeName(), "IDispatch*")) { + arg.vt = VT_DISPATCH; + arg.pdispVal = *(IDispatch**)qvar.data(); + if (arg.pdispVal) + arg.pdispVal->AddRef(); + if (out) { + qWarning("QVariantToVARIANT: out-parameter not supported for IDispatch"); + return false; + } + } else if (!qstrcmp(qvar.typeName(), "IDispatch**")) { + arg.vt = VT_DISPATCH; + arg.ppdispVal = *(IDispatch***)qvar.data(); + if (out) + arg.vt |= VT_BYREF; + } else if (!qstrcmp(qvar.typeName(), "IUnknown*")) { + arg.vt = VT_UNKNOWN; + arg.punkVal = *(IUnknown**)qvar.data(); + if (arg.punkVal) + arg.punkVal->AddRef(); + if (out) { + qWarning("QVariantToVARIANT: out-parameter not supported for IUnknown"); + return false; + } +#ifdef QAX_SERVER + } else if (qAxFactory()->metaObject(QString::fromLatin1(subType.constData()))) { + arg.vt = VT_DISPATCH; + void *user = *(void**)qvar.constData(); +// qVariantGet(qvar, user, qvar.typeName()); + if (!user) { + arg.pdispVal = 0; + } else { + qAxFactory()->createObjectWrapper(static_cast<QObject*>(user), &arg.pdispVal); + } + if (out) { + qWarning("QVariantToVARIANT: out-parameter not supported for subtype"); + return false; + } +#else + } else if (QMetaType::type(subType)) { + QAxObject *object = *(QAxObject**)qvar.constData(); +// qVariantGet(qvar, object, subType); + arg.vt = VT_DISPATCH; + object->queryInterface(IID_IDispatch, (void**)&arg.pdispVal); + if (out) { + qWarning("QVariantToVARIANT: out-parameter not supported for subtype"); + return false; + } +#endif + } else { + return false; + } + } + break; +#endif + + case QVariant::Invalid: // default-parameters not set + if (out && arg.vt == (VT_ERROR|VT_BYREF)) { + *arg.plVal = DISP_E_PARAMNOTFOUND; + } else { + arg.vt = VT_ERROR; + arg.lVal = DISP_E_PARAMNOTFOUND; + if (out) { + arg.plVal = new long(arg.lVal); + arg.vt |= VT_BYREF; + } + } + break; + + default: + return false; + } + + Q_ASSERT(!out || (arg.vt & VT_BYREF)); + return true; +} + |