From 4283465f23806ae4b8ad7344949f55698c16a203 Mon Sep 17 00:00:00 2001
From: watcherhd <watcherhd@e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb>
Date: Thu, 21 Apr 2011 20:19:47 +0000
Subject: MTextControl - text render API for different plugins

git-svn-id: http://miranda-plugins.googlecode.com/svn/trunk@12 e753b5eb-9565-29b2-b5c5-2cc6f99dfbcb
---
 mTextControl/src/richeditutils.cpp | 164 +++++++++++++++++++++++++++++++++++++
 1 file changed, 164 insertions(+)
 create mode 100644 mTextControl/src/richeditutils.cpp

(limited to 'mTextControl/src/richeditutils.cpp')

diff --git a/mTextControl/src/richeditutils.cpp b/mTextControl/src/richeditutils.cpp
new file mode 100644
index 0000000..28a2676
--- /dev/null
+++ b/mTextControl/src/richeditutils.cpp
@@ -0,0 +1,164 @@
+#include "headers.h"
+
+class CREOleCallback: public IRichEditOleCallback
+{
+private:
+	unsigned refCount;
+	IStorage *pictStg;
+	int nextStgId;
+public:
+	CREOleCallback()
+	{
+		refCount = 1;
+		pictStg = 0;
+		nextStgId = 0;
+	}
+
+	HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, LPVOID * ppvObj)
+	{
+		if (IsEqualIID(riid, IID_IRichEditOleCallback))
+		{
+			*ppvObj = this;
+			this->AddRef();
+			return S_OK;
+		}
+		*ppvObj = NULL;
+		return E_NOINTERFACE;
+	}
+
+	ULONG STDMETHODCALLTYPE AddRef()
+	{
+		if (this->refCount == 0) {
+			if (S_OK != StgCreateDocfile(NULL, STGM_READWRITE | STGM_SHARE_EXCLUSIVE | STGM_CREATE | STGM_DELETEONRELEASE, 0, &this->pictStg))
+	            this->pictStg = NULL;
+			this->nextStgId = 0;
+	    }
+	    return ++this->refCount;
+	}
+
+	ULONG STDMETHODCALLTYPE Release()
+	{
+	    if (--this->refCount == 0) {
+	        if (this->pictStg)
+				this->pictStg->Release();
+	    }
+	    return this->refCount;
+	}
+
+	HRESULT STDMETHODCALLTYPE  ContextSensitiveHelp(BOOL fEnterMode)
+	{
+	    return S_OK;
+	}
+
+	HRESULT STDMETHODCALLTYPE  DeleteObject(LPOLEOBJECT lpoleobj)
+	{
+	    return S_OK;
+	}
+
+	HRESULT STDMETHODCALLTYPE  GetClipboardData(CHARRANGE * lpchrg, DWORD reco, LPDATAOBJECT * lplpdataobj)
+	{
+	    return E_NOTIMPL;
+	}
+
+	HRESULT STDMETHODCALLTYPE  GetContextMenu(WORD seltype, LPOLEOBJECT lpoleobj, CHARRANGE * lpchrg, HMENU * lphmenu)
+	{
+	    return E_INVALIDARG;
+	}
+
+	HRESULT STDMETHODCALLTYPE  GetDragDropEffect(BOOL fDrag, DWORD grfKeyState, LPDWORD pdwEffect)
+	{
+	    return S_OK;
+	}
+
+	HRESULT STDMETHODCALLTYPE  GetInPlaceContext(LPOLEINPLACEFRAME * lplpFrame, LPOLEINPLACEUIWINDOW * lplpDoc, LPOLEINPLACEFRAMEINFO lpFrameInfo)
+	{
+	    return E_INVALIDARG;
+	}
+
+	HRESULT STDMETHODCALLTYPE  GetNewStorage(LPSTORAGE * lplpstg)
+	{
+		WCHAR szwName[64];
+		char szName[64];
+		wsprintfA(szName, "s%u", this->nextStgId);
+		MultiByteToWideChar(CP_ACP, 0, szName, -1, szwName, sizeof(szwName) / sizeof(szwName[0]));
+		if (this->pictStg == NULL)
+			return STG_E_MEDIUMFULL;
+#ifdef UNICODE
+	    return this->pictStg->CreateStorage(szwName, STGM_READWRITE | STGM_SHARE_EXCLUSIVE | STGM_CREATE, 0, 0, lplpstg);
+#else
+	    return this->pictStg->CreateStorage(szName, STGM_READWRITE | STGM_SHARE_EXCLUSIVE | STGM_CREATE, 0, 0, lplpstg);
+#endif
+	}
+
+	HRESULT STDMETHODCALLTYPE  QueryAcceptData(LPDATAOBJECT lpdataobj, CLIPFORMAT * lpcfFormat, DWORD reco, BOOL fReally, HGLOBAL hMetaPict)
+	{
+		return S_OK;
+	}
+
+	HRESULT STDMETHODCALLTYPE  QueryInsertObject(LPCLSID lpclsid, LPSTORAGE lpstg, LONG cp)
+	{
+	    return S_OK;
+	}
+
+	HRESULT STDMETHODCALLTYPE  ShowContainerUI(BOOL fShow)
+	{
+	    return S_OK;
+	}
+};
+
+IRichEditOleCallback *reOleCallback = 0;
+
+void InitRichEdit(ITextServices *ts)
+{
+	LRESULT lResult;
+	ts->TxSendMessage(EM_SETOLECALLBACK, 0, (LPARAM)reOleCallback, &lResult);
+}
+
+LRESULT CALLBACK RichEditProxyWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+	ITextServices *ts = (ITextServices *)GetWindowLongPtr(hwnd, GWLP_USERDATA);
+	if (ts && (msg != WM_DESTROY))
+	{
+		LRESULT lResult;
+		ts->TxSendMessage(msg, wParam, lParam, &lResult);
+		return lResult;
+	}
+	return 1;
+}
+
+void LoadRichEdit()
+{
+	OleInitialize(NULL);
+//	LoadLibrary("riched20.dll");
+	reOleCallback = new CREOleCallback;
+//	CoInitializeEx(NULL,COINIT_MULTITHREADED);
+
+
+	WNDCLASSEX wcl;
+	wcl.cbSize = sizeof(wcl);
+	wcl.lpfnWndProc = RichEditProxyWndProc;
+	wcl.style = CS_GLOBALCLASS;
+	wcl.cbClsExtra = 0;
+	wcl.cbWndExtra = 0;
+	wcl.hInstance = hInst;
+	wcl.hIcon = NULL;
+	wcl.hCursor = LoadCursor(NULL, IDC_ARROW);
+	wcl.hbrBackground = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
+	wcl.lpszMenuName = NULL;
+	wcl.lpszClassName = _T("NBRichEditProxyWndClass");
+	wcl.hIconSm = 0; 
+	RegisterClassEx(&wcl);
+}
+
+void UnloadRichEdit()
+{
+	delete reOleCallback;
+	OleUninitialize();
+}
+
+HWND CreateProxyWindow(ITextServices *ts)
+{
+	HWND hwnd = CreateWindow(_T("NBRichEditProxyWndClass"), _T(""), 0, 0, 0, 0, 0, 0, 0, hInst, 0);
+	SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)ts);
+	return hwnd;
+}
-- 
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