1 files changed, 517 insertions, 0 deletions
diff --git a/libs/mTextControl/src/FormattedTextDraw.cpp b/libs/mTextControl/src/FormattedTextDraw.cpp
new file mode 100644
index 0000000000..eca1044a5c
--- /dev/null
+++ b/libs/mTextControl/src/FormattedTextDraw.cpp
@@ -0,0 +1,517 @@
+// Feel free to use this code in your own applications.
+// The Author does not guarantee anything about this code.
+// Author : Yves Maurer
+
+// FormattedTextDraw.cpp : Implementation of CFormattedTextDraw
+
+#include "stdafx.h"
+#include "FormattedTextDraw.h"
+
+const IID IID_ITextServices = { // 8d33f740-cf58-11ce-a89d-00aa006cadc5
+	0x8d33f740,
+	0xcf58,
+	0x11ce,
+	{ 0xa8, 0x9d, 0x00, 0xaa, 0x00, 0x6c, 0xad, 0xc5 }
+};
+
+const IID IID_ITextHost = { // c5bdd8d0-d26e-11ce-a89e-00aa006cadc5
+	0xc5bdd8d0,
+	0xd26e,
+	0x11ce,
+	{ 0xa8, 0x9e, 0x00, 0xaa, 0x00, 0x6c, 0xad, 0xc5 }
+};
+
+const IID IID_ITextDocument = {
+	0x8CC497C0,
+	0xA1DF,
+	0x11CE,
+	{ 0x80, 0x98, 0x00, 0xAA, 0x00, 0x47, 0xBE, 0x5D }
+};
+
+/////////////////////////////////////////////////////////////////////////////
+// CallBack functions
+
+DWORD CALLBACK EditStreamInCallback(DWORD_PTR dwCookie, LPBYTE pbBuff, LONG cb, LONG *pcb)
+{
+	COOKIE *pCookie = (COOKIE*)dwCookie;
+	if (pCookie->isUnicode) {
+		if ((pCookie->cbSize - pCookie->cbCount)*sizeof(WCHAR) < (size_t)cb)
+			*pcb = LONG(pCookie->cbSize - pCookie->cbCount)*sizeof(WCHAR);
+		else
+			*pcb = cb & ~1UL;
+		memcpy(pbBuff, pCookie->unicode + pCookie->cbCount, *pcb);
+		pCookie->cbCount += *pcb / sizeof(WCHAR);
+	}
+	else {
+		if (pCookie->cbSize - pCookie->cbCount < (DWORD)cb)
+			*pcb = LONG(pCookie->cbSize - pCookie->cbCount);
+		else
+			*pcb = cb;
+		memcpy(pbBuff, pCookie->ansi + pCookie->cbCount, *pcb);
+		pCookie->cbCount += *pcb;
+	}
+
+	return 0;	//	callback succeeded - no errors
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// CFormattedTextDraw
+
+HRESULT CFormattedTextDraw::putRTFTextA(char *newVal)
+{
+	if (!m_spTextServices)
+		return S_FALSE;
+
+	m_editCookie.isUnicode = false;
+	m_editCookie.ansi = newVal;
+	m_editCookie.cbSize = mir_strlen(m_editCookie.ansi);
+	m_editCookie.cbCount = 0;
+
+	EDITSTREAM editStream;
+	editStream.dwCookie = (DWORD_PTR)&m_editCookie;
+	editStream.dwError = 0;
+	editStream.pfnCallback = (EDITSTREAMCALLBACK)EditStreamInCallback;
+
+	LRESULT lResult = 0;
+	m_spTextServices->TxSendMessage(EM_STREAMIN, (WPARAM)(SF_RTF), (LPARAM)&editStream, &lResult);
+	return S_OK;
+}
+
+HRESULT CFormattedTextDraw::putRTFTextW(WCHAR *newVal)
+{
+	if (!m_spTextServices)
+		return S_FALSE;
+
+	m_editCookie.isUnicode = true;
+	m_editCookie.unicode = newVal;
+	m_editCookie.cbSize = mir_wstrlen(m_editCookie.unicode);
+	m_editCookie.cbCount = 0;
+
+	EDITSTREAM editStream;
+	editStream.dwCookie = (DWORD_PTR)&m_editCookie;
+	editStream.dwError = 0;
+	editStream.pfnCallback = (EDITSTREAMCALLBACK)EditStreamInCallback;
+
+	LRESULT lResult = 0;
+	m_spTextServices->TxSendMessage(EM_STREAMIN, (WPARAM)(SF_RTF | SF_UNICODE), (LPARAM)&editStream, &lResult);
+	return S_OK;
+
+}
+
+HRESULT CFormattedTextDraw::putTextA(char *newVal)
+{
+	if (!m_spTextServices)
+		return S_FALSE;
+
+	m_editCookie.isUnicode = false;
+	m_editCookie.ansi = newVal;
+	m_editCookie.cbSize = mir_strlen(m_editCookie.ansi);
+	m_editCookie.cbCount = 0;
+
+	EDITSTREAM editStream;
+	editStream.dwCookie = (DWORD_PTR)&m_editCookie;
+	editStream.dwError = 0;
+	editStream.pfnCallback = (EDITSTREAMCALLBACK)EditStreamInCallback;
+
+	LRESULT lResult = 0;
+	m_spTextServices->TxSendMessage(EM_STREAMIN, (WPARAM)(SF_TEXT), (LPARAM)&editStream, &lResult);
+
+	CHARFORMAT cf;
+	cf.cbSize = sizeof(cf);
+	cf.dwMask = CFM_FACE | CFM_BOLD;
+	cf.dwEffects = 0;
+	wcsncpy_s(cf.szFaceName, L"MS Shell Dlg", _TRUNCATE);
+	m_spTextServices->TxSendMessage(EM_SETCHARFORMAT, (WPARAM)(SCF_ALL), (LPARAM)&cf, &lResult);
+
+	return S_OK;
+}
+
+HRESULT CFormattedTextDraw::putTextW(WCHAR *newVal)
+{
+	if (!m_spTextServices)
+		return S_FALSE;
+
+	m_editCookie.isUnicode = true;
+	m_editCookie.unicode = newVal;
+	m_editCookie.cbSize = mir_wstrlen(m_editCookie.unicode);
+	m_editCookie.cbCount = 0;
+
+	EDITSTREAM editStream;
+	editStream.dwCookie = (DWORD_PTR)&m_editCookie;
+	editStream.dwError = 0;
+	editStream.pfnCallback = (EDITSTREAMCALLBACK)EditStreamInCallback;
+
+	LRESULT lResult = 0;
+	m_spTextServices->TxSendMessage(EM_STREAMIN, (WPARAM)(SF_TEXT | SF_UNICODE), (LPARAM)&editStream, &lResult);
+
+	CHARFORMAT cf;
+	cf.cbSize = sizeof(cf);
+	cf.dwMask = CFM_FACE | CFM_BOLD;
+	cf.dwEffects = 0;
+	wcsncpy_s(cf.szFaceName, L"MS Shell Dlg", _TRUNCATE);
+	m_spTextServices->TxSendMessage(EM_SETCHARFORMAT, (WPARAM)(SCF_ALL), (LPARAM)&cf, &lResult);
+	return S_OK;
+}
+
+HRESULT CFormattedTextDraw::Draw(void *hdcDraw, RECT *prc)
+{
+	LOGFONT lf;
+	GetObject(GetCurrentObject((HDC)hdcDraw, OBJ_FONT), sizeof(lf), &lf);
+
+	LRESULT lResult;
+	CHARFORMAT cf;
+	cf.cbSize = sizeof(cf);
+	cf.dwMask = CFM_FACE/*|CFM_COLOR*/ | CFM_CHARSET | CFM_SIZE |
+		(lf.lfWeight >= FW_BOLD ? CFM_BOLD : 0) |
+		(lf.lfItalic ? CFM_ITALIC : 0) |
+		(lf.lfUnderline ? CFM_UNDERLINE : 0) |
+		(lf.lfStrikeOut ? CFM_STRIKEOUT : 0);
+	cf.dwEffects = CFE_BOLD | CFE_ITALIC | CFE_STRIKEOUT | CFE_UNDERLINE;
+	cf.crTextColor = GetTextColor((HDC)hdcDraw);
+	cf.bCharSet = lf.lfCharSet;
+	cf.yHeight = 1440 * abs(lf.lfHeight) / GetDeviceCaps((HDC)hdcDraw, LOGPIXELSY);
+	wcsncpy_s(cf.szFaceName, lf.lfFaceName, _TRUNCATE);
+	m_spTextServices->TxSendMessage(EM_SETCHARFORMAT, (WPARAM)(SCF_ALL), (LPARAM)&cf, &lResult);
+
+	m_spTextServices->TxDraw(
+		DVASPECT_CONTENT,  		// Draw Aspect
+		0,						// Lindex
+		nullptr,					// Info for drawing optimization
+		nullptr,					// target device information
+		(HDC)hdcDraw,			// Draw device HDC
+		nullptr,			 	   	// Target device HDC
+		(RECTL *)prc,			// Bounding client rectangle
+		nullptr,					// Clipping rectangle for metafiles
+		(RECT *)nullptr,			// Update rectangle
+		nullptr, 	   				// Call back function
+		NULL,					// Call back parameter
+		TXTVIEW_INACTIVE);		// What view of the object could be TXTVIEW_ACTIVE
+	return S_OK;
+}
+
+HRESULT CFormattedTextDraw::Create()
+{
+	return CreateTextServicesObject();
+}
+
+HRESULT CFormattedTextDraw::get_NaturalSize(void *hdcDraw, long *Width, long *Height)
+{
+	LOGFONT lf;
+	GetObject(GetCurrentObject((HDC)hdcDraw, OBJ_FONT), sizeof(lf), &lf);
+
+	LRESULT lResult;
+	CHARFORMAT cf;
+	cf.cbSize = sizeof(cf);
+	cf.dwMask = CFM_FACE/*|CFM_COLOR*/ | CFM_CHARSET | CFM_SIZE |
+		(lf.lfWeight >= FW_BOLD ? CFM_BOLD : 0) |
+		(lf.lfItalic ? CFM_ITALIC : 0) |
+		(lf.lfUnderline ? CFM_UNDERLINE : 0) |
+		(lf.lfStrikeOut ? CFM_STRIKEOUT : 0);
+	cf.dwEffects = CFE_BOLD | CFE_ITALIC | CFE_STRIKEOUT | CFE_UNDERLINE;
+	cf.crTextColor = GetTextColor((HDC)hdcDraw);
+	cf.bCharSet = lf.lfCharSet;
+	cf.yHeight = 1440 * abs(lf.lfHeight) / GetDeviceCaps((HDC)hdcDraw, LOGPIXELSY);
+	wcsncpy_s(cf.szFaceName, lf.lfFaceName, _TRUNCATE);
+
+	if (!m_spTextServices)
+		return S_FALSE;
+
+	m_spTextServices->TxSendMessage(EM_SETCHARFORMAT, (WPARAM)(SCF_ALL), (LPARAM)&cf, &lResult);
+
+	*Height = 1;
+
+	SIZEL szExtent;
+	szExtent.cx = *Width;
+	szExtent.cy = *Height;
+	if (m_spTextServices->TxGetNaturalSize(DVASPECT_CONTENT, (HDC)hdcDraw, nullptr, nullptr, TXTNS_FITTOCONTENT, &szExtent, Width, Height) != S_OK)
+		return S_FALSE;
+
+	return S_OK;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// ITextHost functions
+
+HDC CFormattedTextDraw::TxGetDC()
+{
+	return nullptr;
+}
+
+INT CFormattedTextDraw::TxReleaseDC(HDC)
+{
+	return 1;
+}
+
+BOOL CFormattedTextDraw::TxShowScrollBar(INT, BOOL)
+{
+	return FALSE;
+}
+
+BOOL CFormattedTextDraw::TxEnableScrollBar(INT, INT)
+{
+	return FALSE;
+}
+
+BOOL CFormattedTextDraw::TxSetScrollRange(INT, LONG, INT, BOOL)
+{
+	return FALSE;
+}
+
+BOOL CFormattedTextDraw::TxSetScrollPos(INT, INT, BOOL)
+{
+	return FALSE;
+}
+
+void CFormattedTextDraw::TxInvalidateRect(LPCRECT, BOOL)
+{}
+
+void CFormattedTextDraw::TxViewChange(BOOL)
+{}
+
+BOOL CFormattedTextDraw::TxCreateCaret(HBITMAP, INT, INT)
+{
+	return FALSE;
+}
+
+BOOL CFormattedTextDraw::TxShowCaret(BOOL)
+{
+	return FALSE;
+}
+
+BOOL CFormattedTextDraw::TxSetCaretPos(INT, INT)
+{
+	return FALSE;
+}
+
+BOOL CFormattedTextDraw::TxSetTimer(UINT, UINT)
+{
+	return FALSE;
+}
+
+void CFormattedTextDraw::TxKillTimer(UINT)
+{
+}
+
+void CFormattedTextDraw::TxScrollWindowEx(INT, INT, LPCRECT, LPCRECT, HRGN, LPRECT, UINT)
+{
+}
+
+void CFormattedTextDraw::TxSetCapture(BOOL)
+{
+}
+
+void CFormattedTextDraw::TxSetFocus()
+{
+}
+
+void CFormattedTextDraw::TxSetCursor(HCURSOR hcur, BOOL fText)
+{
+	if (fText)
+		SetCursor(LoadCursor(nullptr, MAKEINTRESOURCE(IDC_ARROW)));
+	else
+		SetCursor(hcur);
+}
+
+BOOL CFormattedTextDraw::TxScreenToClient(LPPOINT lppt)
+{
+	if (!m_hwndParent) return FALSE;
+	return ScreenToClient(m_hwndParent, lppt);
+}
+
+BOOL CFormattedTextDraw::TxClientToScreen(LPPOINT lppt)
+{
+	if (!m_hwndParent) return FALSE;
+	//	BOOL result = ;
+	//	lppt->x -= m_rcClient.left;
+	//	lppt->y -= m_rcClient.left;
+	return ClientToScreen(m_hwndParent, lppt);
+}
+
+HRESULT	CFormattedTextDraw::TxActivate(LONG *)
+{
+	return S_OK;
+}
+
+HRESULT	CFormattedTextDraw::TxDeactivate(LONG)
+{
+	return S_OK;
+}
+
+HRESULT	CFormattedTextDraw::TxGetClientRect(LPRECT prc)
+{
+	*prc = m_rcClient;
+	return S_OK;
+}
+
+HRESULT	CFormattedTextDraw::TxGetViewInset(LPRECT prc)
+{
+	*prc = m_rcViewInset;
+	return S_OK;
+}
+
+HRESULT CFormattedTextDraw::TxGetCharFormat(const CHARFORMATW **ppCF)
+{
+	*ppCF = m_pCF;
+	return S_OK;
+}
+
+HRESULT	CFormattedTextDraw::TxGetParaFormat(const PARAFORMAT **ppPF)
+{
+	*ppPF = &m_PF;
+	return S_OK;
+}
+
+COLORREF CFormattedTextDraw::TxGetSysColor(int nIndex)
+{
+	return GetSysColor(nIndex);
+}
+
+HRESULT	CFormattedTextDraw::TxGetBackStyle(TXTBACKSTYLE *pstyle)
+{
+	*pstyle = TXTBACK_TRANSPARENT;
+	return S_OK;
+}
+
+HRESULT	CFormattedTextDraw::TxGetMaxLength(DWORD *plength)
+{
+	*plength = m_dwMaxLength;
+	return S_OK;
+}
+
+HRESULT	CFormattedTextDraw::TxGetScrollBars(DWORD *pdwScrollBar)
+{
+	*pdwScrollBar = m_dwScrollbar;
+	return S_OK;
+}
+
+HRESULT	CFormattedTextDraw::TxGetPasswordChar(wchar_t *)
+{
+	return S_FALSE;
+}
+
+HRESULT	CFormattedTextDraw::TxGetAcceleratorPos(LONG *pcp)
+{
+	*pcp = -1;
+	return S_OK;
+}
+
+HRESULT	CFormattedTextDraw::TxGetExtent(LPSIZEL)
+{
+	return E_NOTIMPL;
+}
+
+HRESULT CFormattedTextDraw::OnTxCharFormatChange(const CHARFORMATW * pcf)
+{
+	memcpy(m_pCF, pcf, pcf->cbSize);
+	return S_OK;
+}
+
+HRESULT	CFormattedTextDraw::OnTxParaFormatChange(const PARAFORMAT * ppf)
+{
+	memcpy(&m_PF, ppf, ppf->cbSize);
+	return S_OK;
+}
+
+HRESULT	CFormattedTextDraw::TxGetPropertyBits(DWORD, DWORD *pdwBits)
+{
+	*pdwBits = m_dwPropertyBits;
+	return S_OK;
+}
+
+HRESULT	CFormattedTextDraw::TxNotify(DWORD, void *)
+{
+	return S_OK;
+}
+
+HIMC CFormattedTextDraw::TxImmGetContext()
+{
+	return nullptr;
+}
+
+void CFormattedTextDraw::TxImmReleaseContext(HIMC)
+{}
+
+HRESULT	CFormattedTextDraw::TxGetSelectionBarWidth(LONG *lSelBarWidth)
+{
+	*lSelBarWidth = 100;
+	return S_OK;
+}
+
+/////////////////////////////////////////////////////////////////////////////
+// custom functions
+
+HRESULT CFormattedTextDraw::CharFormatFromHFONT(CHARFORMAT2W* pCF, HFONT hFont)
+// Takes an HFONT and fills in a CHARFORMAT2W structure with the corresponding info
+{
+	// Get LOGFONT for default font
+	if (!hFont)
+		hFont = (HFONT)GetStockObject(SYSTEM_FONT);
+
+	// Get LOGFONT for passed hfont
+	LOGFONT lf;
+	if (!GetObject(hFont, sizeof(LOGFONT), &lf))
+		return E_FAIL;
+
+	// Set CHARFORMAT structure
+	memset(pCF, 0, sizeof(CHARFORMAT2W));
+	pCF->cbSize = sizeof(CHARFORMAT2W);
+
+	HWND hWnd = GetDesktopWindow();
+	HDC hDC = GetDC(hWnd);
+	LONG yPixPerInch = GetDeviceCaps(hDC, LOGPIXELSY);
+	pCF->yHeight = -lf.lfHeight * LY_PER_INCH / yPixPerInch;
+	ReleaseDC(hWnd, hDC);
+
+	pCF->yOffset = 0;
+	pCF->crTextColor = 0;
+
+	pCF->dwEffects = CFM_EFFECTS | CFE_AUTOBACKCOLOR;
+	pCF->dwEffects &= ~(CFE_PROTECTED | CFE_LINK | CFE_AUTOCOLOR);
+
+	if (lf.lfWeight < FW_BOLD)
+		pCF->dwEffects &= ~CFE_BOLD;
+
+	if (!lf.lfItalic)
+		pCF->dwEffects &= ~CFE_ITALIC;
+
+	if (!lf.lfUnderline)
+		pCF->dwEffects &= ~CFE_UNDERLINE;
+
+	if (!lf.lfStrikeOut)
+		pCF->dwEffects &= ~CFE_STRIKEOUT;
+
+	pCF->dwMask = CFM_ALL | CFM_BACKCOLOR | CFM_STYLE;
+	pCF->bCharSet = lf.lfCharSet;
+	pCF->bPitchAndFamily = lf.lfPitchAndFamily;
+
+	mir_wstrcpy(pCF->szFaceName, lf.lfFaceName);
+	return S_OK;
+}
+
+HRESULT CFormattedTextDraw::InitDefaultCharFormat()
+{
+	return CharFormatFromHFONT(m_pCF, nullptr);
+}
+
+HRESULT CFormattedTextDraw::InitDefaultParaFormat()
+{
+	memset(&m_PF, 0, sizeof(PARAFORMAT2));
+	m_PF.cbSize = sizeof(PARAFORMAT2);
+	m_PF.dwMask = PFM_ALL;
+	m_PF.wAlignment = PFA_LEFT;
+	m_PF.cTabCount = 1;
+	m_PF.rgxTabs[0] = lDefaultTab;
+	return S_OK;
+}
+
+HRESULT CFormattedTextDraw::CreateTextServicesObject()
+{
+	IUnknown *spUnk;
+	HRESULT hr = MyCreateTextServices(nullptr, static_cast<ITextHost*>(this), &spUnk);
+	if (hr == S_OK) {
+		hr = spUnk->QueryInterface(IID_ITextServices, (void**)&m_spTextServices);
+		hr = spUnk->QueryInterface(IID_ITextDocument, (void**)&m_spTextDocument);
+		spUnk->Release();
+	}
+	return hr;
+}