First commit.

DisplayAttribute.cpp

@@ -0,0 +1,115 @@
+// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
+// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
+// PARTICULAR PURPOSE.
+//
+// Copyright (c) Microsoft Corporation. All rights reserved
+
+#include "Private.h"
+#include "globals.h"
+#include "SampleIME.h"
+
+//+---------------------------------------------------------------------------
+//
+// _ClearCompositionDisplayAttributes
+//
+//----------------------------------------------------------------------------
+
+void CSampleIME::_ClearCompositionDisplayAttributes(TfEditCookie ec, _In_ ITfContext *pContext)
+{
+    ITfRange* pRangeComposition = nullptr;
+    ITfProperty* pDisplayAttributeProperty = nullptr;
+
+    // get the compositon range.
+    if (FAILED(_pComposition->GetRange(&pRangeComposition)))
+    {
+        return;
+    }
+
+    // get our the display attribute property
+    if (SUCCEEDED(pContext->GetProperty(GUID_PROP_ATTRIBUTE, &pDisplayAttributeProperty)))
+    {
+        // clear the value over the range
+        pDisplayAttributeProperty->Clear(ec, pRangeComposition);
+
+        pDisplayAttributeProperty->Release();
+    }
+
+    pRangeComposition->Release();
+}
+
+//+---------------------------------------------------------------------------
+//
+// _SetCompositionDisplayAttributes
+//
+//----------------------------------------------------------------------------
+
+BOOL CSampleIME::_SetCompositionDisplayAttributes(TfEditCookie ec, _In_ ITfContext *pContext, TfGuidAtom gaDisplayAttribute)
+{
+    ITfRange* pRangeComposition = nullptr;
+    ITfProperty* pDisplayAttributeProperty = nullptr;
+    HRESULT hr = S_OK;
+
+    // we need a range and the context it lives in
+    hr = _pComposition->GetRange(&pRangeComposition);
+    if (FAILED(hr))
+    {
+        return FALSE;
+    }
+
+    hr = E_FAIL;
+
+    // get our the display attribute property
+    if (SUCCEEDED(pContext->GetProperty(GUID_PROP_ATTRIBUTE, &pDisplayAttributeProperty)))
+    {
+        VARIANT var;
+        // set the value over the range
+        // the application will use this guid atom to lookup the acutal rendering information
+        var.vt = VT_I4; // we're going to set a TfGuidAtom
+        var.lVal = gaDisplayAttribute; 
+
+        hr = pDisplayAttributeProperty->SetValue(ec, pRangeComposition, &var);
+
+        pDisplayAttributeProperty->Release();
+    }
+
+    pRangeComposition->Release();
+    return (hr == S_OK);
+}
+
+//+---------------------------------------------------------------------------
+//
+// _InitDisplayAttributeGuidAtom
+//
+// Because it's expensive to map our display attribute GUID to a TSF
+// TfGuidAtom, we do it once when Activate is called.
+//----------------------------------------------------------------------------
+
+BOOL CSampleIME::_InitDisplayAttributeGuidAtom()
+{
+    ITfCategoryMgr* pCategoryMgr = nullptr;
+    HRESULT hr = CoCreateInstance(CLSID_TF_CategoryMgr, nullptr, CLSCTX_INPROC_SERVER, IID_ITfCategoryMgr, (void**)&pCategoryMgr);
+
+    if (FAILED(hr))
+    {
+        return FALSE;
+    }
+
+    // register the display attribute for input text.
+    hr = pCategoryMgr->RegisterGUID(Global::SampleIMEGuidDisplayAttributeInput, &_gaDisplayAttributeInput);
+	if (FAILED(hr))
+    {
+        goto Exit;
+    }
+    // register the display attribute for the converted text.
+    hr = pCategoryMgr->RegisterGUID(Global::SampleIMEGuidDisplayAttributeConverted, &_gaDisplayAttributeConverted);
+	if (FAILED(hr))
+    {
+        goto Exit;
+    }
+
+Exit:
+    pCategoryMgr->Release();
+
+    return (hr == S_OK);
+}