diff options
Diffstat (limited to 'plugins/BasicHistory/src/ImageDataObject.cpp')
| -rw-r--r-- | plugins/BasicHistory/src/ImageDataObject.cpp | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/plugins/BasicHistory/src/ImageDataObject.cpp b/plugins/BasicHistory/src/ImageDataObject.cpp new file mode 100644 index 0000000000..15cb67f6ce --- /dev/null +++ b/plugins/BasicHistory/src/ImageDataObject.cpp @@ -0,0 +1,171 @@ +/*
+Basic History plugin
+Copyright (C) 2011-2012 Krzysztof Kral
+
+This program is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public License
+as published by the Free Software Foundation version 2
+of the License.
+
+This program 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.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+//code taken partly from public example on the internet, source unknown.
+
+#include "StdAfx.h"
+#include "ImageDataObject.h"
+
+HBITMAP CacheIconToBMP(HICON hIcon, COLORREF backgroundColor, int sizeX, int sizeY)
+{
+ RECT rc;
+ HBRUSH hBkgBrush = CreateSolidBrush(backgroundColor);
+ rc.top = rc.left = 0;
+ rc.right = sizeY;
+ rc.bottom = sizeX;
+ HDC hdc = GetDC(0);
+ HBITMAP hBmp = CreateCompatibleBitmap(hdc, sizeY, sizeX);
+ HDC hdcMem = CreateCompatibleDC(hdc);
+ HBITMAP hoBmp = (HBITMAP)SelectObject(hdcMem, hBmp);
+ FillRect(hdcMem, &rc, hBkgBrush);
+ DrawIconEx(hdcMem, 0, 0, hIcon, sizeY, sizeX, 0, NULL, DI_NORMAL);
+ SelectObject(hdcMem, hoBmp);
+ DeleteDC(hdcMem);
+ ReleaseDC(NULL, hdc);
+ DeleteObject(hBkgBrush);
+ return hBmp;
+}
+
+// returns true on success, false on failure
+bool ImageDataObject::InsertIcon(IRichEditOle* pRichEditOle, HICON hIcon,
+ COLORREF backgroundColor, int sizeX, int sizeY)
+{
+ bool result;
+ HBITMAP hBmp = CacheIconToBMP(hIcon, backgroundColor, sizeX, sizeY);
+ result = InsertBitmap(pRichEditOle, hBmp);
+ DeleteObject(hBmp);
+ return result;
+}
+
+// returns true on success, false on failure
+bool ImageDataObject::InsertBitmap(IRichEditOle* pRichEditOle, HBITMAP hBitmap)
+{
+ SCODE sc;
+ BITMAP bminfo;
+
+ // Get the image data object
+ //
+ ImageDataObject *pods = new ImageDataObject;
+
+ GetObject(hBitmap, sizeof(bminfo), &bminfo);
+ pods->SetBitmap(hBitmap);
+
+ // Get the RichEdit container site
+ //
+ IOleClientSite *pOleClientSite;
+ pRichEditOle->GetClientSite(&pOleClientSite);
+
+ // Initialize a Storage Object
+ //
+ IStorage *pStorage;
+
+ LPLOCKBYTES lpLockBytes = NULL;
+ sc = ::CreateILockBytesOnHGlobal(NULL, TRUE, &lpLockBytes);
+ if (sc != S_OK) {
+ pOleClientSite->Release();
+ return false;
+ }
+ sc = ::StgCreateDocfileOnILockBytes(lpLockBytes,
+ STGM_SHARE_EXCLUSIVE | STGM_CREATE | STGM_READWRITE, 0, &pStorage);
+ if (sc != S_OK) {
+ lpLockBytes = NULL;
+ pOleClientSite->Release();
+ return false;
+ }
+ // The final ole object which will be inserted in the richedit control
+ //
+ IOleObject *pOleObject;
+ pOleObject = pods->GetOleObject(pOleClientSite, pStorage);
+ if (pOleObject == NULL) {
+ pStorage->Release();
+ pOleClientSite->Release();
+ return false;
+ }
+
+ // all items are "contained" -- this makes our reference to this object
+ // weak -- which is needed for links to embedding silent update.
+ OleSetContainedObject(pOleObject, TRUE);
+
+ // Now Add the object to the RichEdit
+ //
+ REOBJECT reobject;
+ ZeroMemory(&reobject, sizeof(REOBJECT));
+ reobject.cbStruct = sizeof(REOBJECT);
+
+ CLSID clsid;
+ sc = pOleObject->GetUserClassID(&clsid);
+ if (sc != S_OK) {
+ pOleObject->Release();
+ pStorage->Release();
+ pOleClientSite->Release();
+ return false;
+ }
+
+ reobject.clsid = clsid;
+ reobject.cp = REO_CP_SELECTION ;
+ reobject.dvaspect = DVASPECT_CONTENT;
+ reobject.poleobj = pOleObject;
+ reobject.polesite = pOleClientSite;
+ reobject.pstg = pStorage;
+ reobject.dwFlags = bminfo.bmHeight <= 12 ? 0 : REO_BELOWBASELINE;
+
+ // Insert the bitmap at the current location in the richedit control
+ //
+ sc = pRichEditOle->InsertObject(&reobject);
+
+ // Release all unnecessary interfaces
+ //
+ pOleObject->Release();
+ pOleClientSite->Release();
+ lpLockBytes->Release();
+ pStorage->Release();
+ if (sc != S_OK)
+ return false;
+ else
+ return true;
+}
+
+
+void ImageDataObject::SetBitmap(HBITMAP hBitmap)
+{
+ STGMEDIUM stgm;
+ stgm.tymed = TYMED_GDI; // Storage medium = HBITMAP handle
+ stgm.hBitmap = hBitmap;
+ stgm.pUnkForRelease = NULL; // Use ReleaseStgMedium
+
+ FORMATETC fm;
+ fm.cfFormat = CF_BITMAP; // Clipboard format = CF_BITMAP
+ fm.ptd = NULL; // Target Device = Screen
+ fm.dwAspect = DVASPECT_CONTENT; // Level of detail = Full content
+ fm.lindex = -1; // Index = Not applicaple
+ fm.tymed = TYMED_GDI; // Storage medium = HBITMAP handle
+
+ this->SetData(&fm, &stgm, TRUE);
+}
+
+
+IOleObject *ImageDataObject::GetOleObject(IOleClientSite *pOleClientSite, IStorage *pStorage)
+{
+ SCODE sc;
+ IOleObject *pOleObject;
+ sc = ::OleCreateStaticFromData(this, IID_IOleObject, OLERENDER_FORMAT,
+ &m_format, pOleClientSite, pStorage, (void **) & pOleObject);
+ if (sc != S_OK)
+ pOleObject = NULL;
+ return pOleObject;
+}
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