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with joost: support for pasting metafiles under windows
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@24144 a592a061-630c-0410-9148-cb99ea01b6c8
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commit
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@ -37,6 +37,8 @@ public:
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PngGraphicsType,
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JpegGraphicsType,
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LinkBackGraphicsType,
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EmfGraphicsType,
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WmfGraphicsType,
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AnyGraphicsType,
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};
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@ -41,6 +41,11 @@
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#include <QString>
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#include <QStringList>
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#ifdef Q_WS_WIN
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#include <QWindowsMime>
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#include <objidl.h>
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#endif // Q_WS_WIN
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#include "boost/assert.hpp"
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#include <map>
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@ -54,11 +59,132 @@ using namespace lyx::support;
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static char const * const lyx_mime_type = "application/x-lyx";
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static char const * const pdf_mime_type = "application/pdf";
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static char const * const emf_mime_type = "image/x-emf";
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static char const * const wmf_mime_type = "image/x-wmf";
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namespace lyx {
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namespace frontend {
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#ifdef Q_WS_WIN
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static FORMATETC setCf(int cf)
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{
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FORMATETC formatetc;
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formatetc.cfFormat = cf;
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formatetc.ptd = NULL;
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formatetc.dwAspect = DVASPECT_CONTENT;
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formatetc.lindex = -1;
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if (cf == CF_ENHMETAFILE)
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formatetc.tymed = TYMED_ENHMF;
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if (cf == CF_METAFILEPICT)
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formatetc.tymed = TYMED_MFPICT;
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return formatetc;
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}
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static bool canGetData(int cf, IDataObject * pDataObj)
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{
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FORMATETC formatetc = setCf(cf);
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return pDataObj->QueryGetData(&formatetc) == S_OK;
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}
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class QWindowsMimeMetafile : public QWindowsMime {
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public:
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bool canConvertFromMime(FORMATETC const & formatetc, QMimeData const * mimeData) const;
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bool canConvertToMime(QString const & mimeType, IDataObject * pDataObj) const;
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bool convertFromMime(FORMATETC const & formatetc, const QMimeData * mimeData, STGMEDIUM * pmedium) const;
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QVariant convertToMime(QString const & mimeType, IDataObject * pDataObj, QVariant::Type preferredType) const;
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QVector<FORMATETC> formatsForMime(QString const & mimeType, QMimeData const * mimeData) const;
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QString mimeForFormat(FORMATETC const &) const;
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};
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QString QWindowsMimeMetafile::mimeForFormat(const FORMATETC & formatetc) const
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{
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QString f;
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if (formatetc.cfFormat == CF_ENHMETAFILE)
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f = emf_mime_type;
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else if (formatetc.cfFormat == CF_METAFILEPICT)
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f = wmf_mime_type;
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return f;
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}
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bool QWindowsMimeMetafile::canConvertFromMime(
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const FORMATETC & formatetc, const QMimeData * mimeData) const
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{
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return false;
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}
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bool QWindowsMimeMetafile::canConvertToMime(
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const QString & mimeType, IDataObject * pDataObj) const
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{
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return (mimeType == "image/x-emf" && canGetData(CF_ENHMETAFILE, pDataObj))
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|| (mimeType == "image/x-wmf" && canGetData(CF_METAFILEPICT, pDataObj));
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}
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bool QWindowsMimeMetafile::convertFromMime(
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const FORMATETC & formatetc, const QMimeData * mimeData,
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STGMEDIUM * pmedium) const
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{
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return false;
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}
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QVariant QWindowsMimeMetafile::convertToMime(
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const QString & mimeType, IDataObject * pDataObj,
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QVariant::Type preferredType) const
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{
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QVariant ret;
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if (canConvertToMime(mimeType, pDataObj)) {
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FORMATETC formatetc;
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if (mimeType == "image/x-emf")
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formatetc = setCf(CF_ENHMETAFILE);
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if (mimeType == "image/x-wmf")
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formatetc = setCf(CF_METAFILEPICT);
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STGMEDIUM s;
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QByteArray data;
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int dataSize;
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if (pDataObj->GetData(&formatetc, &s) == S_OK) {
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if (s.tymed == TYMED_ENHMF) {
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dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, NULL, NULL);
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data.resize(dataSize);
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dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, dataSize, (LPBYTE)data.data());
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} else if (s.tymed == TYMED_MFPICT) {
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dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, NULL, NULL);
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data.resize(dataSize);
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dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, dataSize, (LPBYTE)data.data());
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}
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data.detach();
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ReleaseStgMedium(&s);
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}
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ret = data;
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}
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return ret;
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}
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QVector<FORMATETC> QWindowsMimeMetafile::formatsForMime(
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const QString & mimeType, const QMimeData * mimeData) const
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{
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QVector<FORMATETC> formats;
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if (mimeType == "image/x-emf")
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formats += setCf(CF_ENHMETAFILE);
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if (mimeType == "image/x-wmf")
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formats += setCf(CF_METAFILEPICT);
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return formats;
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}
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static QWindowsMimeMetafile * metafileWindowsMime;
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#endif // Q_WS_WIN
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#ifdef Q_WS_MACX
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class QMacPasteboardMimeGraphics : public QMacPasteboardMime {
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@ -137,6 +263,11 @@ GuiClipboard::GuiClipboard()
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if (!graphicsPasteboardMime)
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graphicsPasteboardMime = new QMacPasteboardMimeGraphics();
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#endif // Q_WS_MACX
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#ifdef Q_WS_WIN
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if (!metafileWindowsMime)
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metafileWindowsMime = new QWindowsMimeMetafile();
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#endif // Q_WS_WIN
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}
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@ -177,6 +308,10 @@ FileName GuiClipboard::getPastedGraphicsFileName(Cursor const & cur,
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{
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// create file dialog filter according to the existing types in the clipboard
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vector<Clipboard::GraphicsType> types;
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if (hasGraphicsContents(Clipboard::EmfGraphicsType))
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types.push_back(Clipboard::EmfGraphicsType);
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if (hasGraphicsContents(Clipboard::WmfGraphicsType))
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types.push_back(Clipboard::WmfGraphicsType);
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if (hasGraphicsContents(Clipboard::LinkBackGraphicsType))
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types.push_back(Clipboard::LinkBackGraphicsType);
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if (hasGraphicsContents(Clipboard::PdfGraphicsType))
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@ -196,11 +331,15 @@ FileName GuiClipboard::getPastedGraphicsFileName(Cursor const & cur,
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map<Clipboard::GraphicsType, string> extensions;
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map<Clipboard::GraphicsType, docstring> typeNames;
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extensions[Clipboard::EmfGraphicsType] = "emf";
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extensions[Clipboard::WmfGraphicsType] = "wmf";
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extensions[Clipboard::LinkBackGraphicsType] = "linkback";
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extensions[Clipboard::PdfGraphicsType] = "pdf";
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extensions[Clipboard::PngGraphicsType] = "png";
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extensions[Clipboard::JpegGraphicsType] = "jpeg";
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typeNames[Clipboard::EmfGraphicsType] = _("Enhanced Metafile");
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typeNames[Clipboard::WmfGraphicsType] = _("Windows Metafile");
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typeNames[Clipboard::LinkBackGraphicsType] = _("LinkBack PDF");
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typeNames[Clipboard::PdfGraphicsType] = _("PDF");
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typeNames[Clipboard::PngGraphicsType] = _("PNG");
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@ -329,6 +468,8 @@ FileName GuiClipboard::getAsGraphics(Cursor const & cur, GraphicsType type) cons
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switch (type) {
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case PdfGraphicsType: mime = pdf_mime_type; break;
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case LinkBackGraphicsType: mime = pdf_mime_type; break;
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case EmfGraphicsType: mime = emf_mime_type; break;
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case WmfGraphicsType: mime = wmf_mime_type; break;
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default: BOOST_ASSERT(false);
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}
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@ -415,6 +556,8 @@ bool GuiClipboard::hasGraphicsContents(Clipboard::GraphicsType type) const
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return hasGraphicsContents(PdfGraphicsType)
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|| hasGraphicsContents(PngGraphicsType)
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|| hasGraphicsContents(JpegGraphicsType)
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|| hasGraphicsContents(EmfGraphicsType)
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|| hasGraphicsContents(WmfGraphicsType)
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|| hasGraphicsContents(LinkBackGraphicsType);
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}
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@ -444,6 +587,8 @@ bool GuiClipboard::hasGraphicsContents(Clipboard::GraphicsType type) const
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// compute mime for type
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QString mime;
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switch (type) {
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case EmfGraphicsType: mime = emf_mime_type; break;
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case WmfGraphicsType: mime = wmf_mime_type; break;
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case PdfGraphicsType: mime = pdf_mime_type; break;
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default: BOOST_ASSERT(false);
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}
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