- added JUCE library code

git-svn-id: http://moon:8086/svn/software/trunk/projects/FsTrack@357 b431acfa-c32f-4a4a-93f1-934dc6c82436
2018-06-12 16:53:56 +00:00
parent fd05a8501a
commit 88f2f0e9aa
755 changed files with 269502 additions and 0 deletions
@@ -0,0 +1,293 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2013 - Raw Material Software Ltd.
+
+   Permission is granted to use this software under the terms of either:
+   a) the GPL v2 (or any later version)
+   b) the Affero GPL v3
+
+   Details of these licenses can be found at: www.gnu.org/licenses
+
+   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   ------------------------------------------------------------------------------
+
+   To release a closed-source product which uses JUCE, commercial licenses are
+   available: visit www.juce.com for more information.
+
+  ==============================================================================
+*/
+
+namespace DragAndDropHelpers
+{
+    //==============================================================================
+    class JuceDropSource   : public ComBaseClassHelper <IDropSource>
+    {
+    public:
+        JuceDropSource() {}
+
+        JUCE_COMRESULT QueryContinueDrag (BOOL escapePressed, DWORD keys)
+        {
+            if (escapePressed)
+                return DRAGDROP_S_CANCEL;
+
+            if ((keys & (MK_LBUTTON | MK_RBUTTON)) == 0)
+                return DRAGDROP_S_DROP;
+
+            return S_OK;
+        }
+
+        JUCE_COMRESULT GiveFeedback (DWORD)
+        {
+            return DRAGDROP_S_USEDEFAULTCURSORS;
+        }
+    };
+
+    //==============================================================================
+    class JuceEnumFormatEtc   : public ComBaseClassHelper <IEnumFORMATETC>
+    {
+    public:
+        JuceEnumFormatEtc (const FORMATETC* const format_)
+            : format (format_),
+              index (0)
+        {
+        }
+
+        JUCE_COMRESULT Clone (IEnumFORMATETC** result)
+        {
+            if (result == 0)
+                return E_POINTER;
+
+            JuceEnumFormatEtc* const newOne = new JuceEnumFormatEtc (format);
+            newOne->index = index;
+
+            *result = newOne;
+            return S_OK;
+        }
+
+        JUCE_COMRESULT Next (ULONG celt, LPFORMATETC lpFormatEtc, ULONG* pceltFetched)
+        {
+            if (pceltFetched != nullptr)
+                *pceltFetched = 0;
+            else if (celt != 1)
+                return S_FALSE;
+
+            if (index == 0 && celt > 0 && lpFormatEtc != 0)
+            {
+                copyFormatEtc (lpFormatEtc [0], *format);
+                ++index;
+
+                if (pceltFetched != nullptr)
+                    *pceltFetched = 1;
+
+                return S_OK;
+            }
+
+            return S_FALSE;
+        }
+
+        JUCE_COMRESULT Skip (ULONG celt)
+        {
+            if (index + (int) celt >= 1)
+                return S_FALSE;
+
+            index += celt;
+            return S_OK;
+        }
+
+        JUCE_COMRESULT Reset()
+        {
+            index = 0;
+            return S_OK;
+        }
+
+    private:
+        const FORMATETC* const format;
+        int index;
+
+        static void copyFormatEtc (FORMATETC& dest, const FORMATETC& source)
+        {
+            dest = source;
+
+            if (source.ptd != 0)
+            {
+                dest.ptd = (DVTARGETDEVICE*) CoTaskMemAlloc (sizeof (DVTARGETDEVICE));
+                *(dest.ptd) = *(source.ptd);
+            }
+        }
+
+        JUCE_DECLARE_NON_COPYABLE (JuceEnumFormatEtc)
+    };
+
+    //==============================================================================
+    class JuceDataObject  : public ComBaseClassHelper <IDataObject>
+    {
+    public:
+        JuceDataObject (JuceDropSource* const dropSource_,
+                        const FORMATETC* const format_,
+                        const STGMEDIUM* const medium_)
+            : dropSource (dropSource_),
+              format (format_),
+              medium (medium_)
+        {
+        }
+
+        ~JuceDataObject()
+        {
+            jassert (refCount == 0);
+        }
+
+        JUCE_COMRESULT GetData (FORMATETC* pFormatEtc, STGMEDIUM* pMedium)
+        {
+            if ((pFormatEtc->tymed & format->tymed) != 0
+                 && pFormatEtc->cfFormat == format->cfFormat
+                 && pFormatEtc->dwAspect == format->dwAspect)
+            {
+                pMedium->tymed = format->tymed;
+                pMedium->pUnkForRelease = 0;
+
+                if (format->tymed == TYMED_HGLOBAL)
+                {
+                    const SIZE_T len = GlobalSize (medium->hGlobal);
+                    void* const src = GlobalLock (medium->hGlobal);
+                    void* const dst = GlobalAlloc (GMEM_FIXED, len);
+
+                    memcpy (dst, src, len);
+
+                    GlobalUnlock (medium->hGlobal);
+
+                    pMedium->hGlobal = dst;
+                    return S_OK;
+                }
+            }
+
+            return DV_E_FORMATETC;
+        }
+
+        JUCE_COMRESULT QueryGetData (FORMATETC* f)
+        {
+            if (f == 0)
+                return E_INVALIDARG;
+
+            if (f->tymed == format->tymed
+                  && f->cfFormat == format->cfFormat
+                  && f->dwAspect == format->dwAspect)
+                return S_OK;
+
+            return DV_E_FORMATETC;
+        }
+
+        JUCE_COMRESULT GetCanonicalFormatEtc (FORMATETC*, FORMATETC* pFormatEtcOut)
+        {
+            pFormatEtcOut->ptd = 0;
+            return E_NOTIMPL;
+        }
+
+        JUCE_COMRESULT EnumFormatEtc (DWORD direction, IEnumFORMATETC** result)
+        {
+            if (result == 0)
+                return E_POINTER;
+
+            if (direction == DATADIR_GET)
+            {
+                *result = new JuceEnumFormatEtc (format);
+                return S_OK;
+            }
+
+            *result = 0;
+            return E_NOTIMPL;
+        }
+
+        JUCE_COMRESULT GetDataHere (FORMATETC*, STGMEDIUM*)                  { return DATA_E_FORMATETC; }
+        JUCE_COMRESULT SetData (FORMATETC*, STGMEDIUM*, BOOL)                { return E_NOTIMPL; }
+        JUCE_COMRESULT DAdvise (FORMATETC*, DWORD, IAdviseSink*, DWORD*)     { return OLE_E_ADVISENOTSUPPORTED; }
+        JUCE_COMRESULT DUnadvise (DWORD)                                     { return E_NOTIMPL; }
+        JUCE_COMRESULT EnumDAdvise (IEnumSTATDATA**)                         { return OLE_E_ADVISENOTSUPPORTED; }
+
+    private:
+        JuceDropSource* const dropSource;
+        const FORMATETC* const format;
+        const STGMEDIUM* const medium;
+
+        JUCE_DECLARE_NON_COPYABLE (JuceDataObject)
+    };
+
+    //==============================================================================
+    HDROP createHDrop (const StringArray& fileNames)
+    {
+        int totalBytes = 0;
+        for (int i = fileNames.size(); --i >= 0;)
+            totalBytes += (int) CharPointer_UTF16::getBytesRequiredFor (fileNames[i].getCharPointer()) + sizeof (WCHAR);
+
+        HDROP hDrop = (HDROP) GlobalAlloc (GMEM_MOVEABLE | GMEM_ZEROINIT, sizeof (DROPFILES) + totalBytes + 4);
+
+        if (hDrop != 0)
+        {
+            LPDROPFILES pDropFiles = (LPDROPFILES) GlobalLock (hDrop);
+            pDropFiles->pFiles = sizeof (DROPFILES);
+            pDropFiles->fWide = true;
+
+            WCHAR* fname = reinterpret_cast<WCHAR*> (addBytesToPointer (pDropFiles, sizeof (DROPFILES)));
+
+            for (int i = 0; i < fileNames.size(); ++i)
+            {
+                const size_t bytesWritten = fileNames[i].copyToUTF16 (fname, 2048);
+                fname = reinterpret_cast<WCHAR*> (addBytesToPointer (fname, bytesWritten));
+            }
+
+            *fname = 0;
+
+            GlobalUnlock (hDrop);
+        }
+
+        return hDrop;
+    }
+
+    bool performDragDrop (FORMATETC* const format, STGMEDIUM* const medium, const DWORD whatToDo)
+    {
+        JuceDropSource* const source = new JuceDropSource();
+        JuceDataObject* const data = new JuceDataObject (source, format, medium);
+
+        DWORD effect;
+        const HRESULT res = DoDragDrop (data, source, whatToDo, &effect);
+
+        data->Release();
+        source->Release();
+
+        return res == DRAGDROP_S_DROP;
+    }
+}
+
+//==============================================================================
+bool DragAndDropContainer::performExternalDragDropOfFiles (const StringArray& files, const bool canMove)
+{
+    FORMATETC format = { CF_HDROP, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
+    STGMEDIUM medium = { TYMED_HGLOBAL, { 0 }, 0 };
+
+    medium.hGlobal = DragAndDropHelpers::createHDrop (files);
+
+    return DragAndDropHelpers::performDragDrop (&format, &medium, canMove ? (DWORD) (DROPEFFECT_COPY | DROPEFFECT_MOVE)
+                                                                          : (DWORD) DROPEFFECT_COPY);
+}
+
+bool DragAndDropContainer::performExternalDragDropOfText (const String& text)
+{
+    FORMATETC format = { CF_TEXT, 0, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
+    STGMEDIUM medium = { TYMED_HGLOBAL, { 0 }, 0 };
+
+    const size_t numBytes = CharPointer_UTF16::getBytesRequiredFor (text.getCharPointer());
+
+    medium.hGlobal = GlobalAlloc (GMEM_MOVEABLE | GMEM_ZEROINIT, numBytes + 2);
+    WCHAR* const data = static_cast <WCHAR*> (GlobalLock (medium.hGlobal));
+
+    text.copyToUTF16 (data, numBytes);
+    format.cfFormat = CF_UNICODETEXT;
+
+    GlobalUnlock (medium.hGlobal);
+
+    return DragAndDropHelpers::performDragDrop (&format, &medium, DROPEFFECT_COPY | DROPEFFECT_MOVE);
+}