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// Feel free to use this code in your own applications.
// The Author does not guarantee anything about this code.
// Author : Yves Maurer
// FormattedTextDraw.h : Declaration of the CFormattedTextDraw
#ifndef __FORMATTEDTEXTDRAW_H_
#define __FORMATTEDTEXTDRAW_H_
#ifndef LY_PER_INCH
#define LY_PER_INCH 1440
#define HOST_BORDER 0
#endif
/////////////////////////////////////////////////////////////////////////////
// CFormattedTextDraw
class CFormattedTextDraw : public ITextHost, public MZeroedObject
{
HWND m_hwndParent;
RECT m_rcClient; // Client Rect
RECT m_rcViewInset; // view rect inset
SIZEL m_sizelExtent; // Extent array
int nPixelsPerInchX; // Pixels per logical inch along width
int nPixelsPerInchY; // Pixels per logical inch along height
CHARFORMAT2W *m_pCF;
PARAFORMAT2 m_PF;
uint32_t m_dwScrollbar; // Scroll bar style
uint32_t m_dwPropertyBits; // Property bits
uint32_t m_dwMaxLength;
ITextServices *m_spTextServices;
ITextDocument *m_spTextDocument;
public:
CFormattedTextDraw();
~CFormattedTextDraw();
HRESULT get_NaturalSize(HDC hdcDraw, long *Width, long *pVal);
HRESULT Draw(HDC hdcDraw, RECT *prc);
HRESULT putRTFTextA(char *newVal);
HRESULT putRTFTextW(wchar_t *newVal);
HRESULT putTextA(char *newVal);
HRESULT putTextW(wchar_t *newVal);
__forceinline ITextServices *getTextService() { return m_spTextServices; };
__forceinline ITextDocument *getTextDocument() { return m_spTextDocument; };
__forceinline void setParentWnd(HWND hwnd, RECT rect) { m_hwndParent = hwnd; m_rcClient = rect; }
// IUnknown
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, void __RPC_FAR *__RPC_FAR *ppvObject) override
{ *ppvObject = nullptr;
return S_FALSE;
}
ULONG STDMETHODCALLTYPE AddRef(void) override
{ return 0;
}
ULONG STDMETHODCALLTYPE Release(void) override
{ return 0;
}
// ITextHost
HDC TxGetDC() override;
INT TxReleaseDC(HDC hdc) override;
BOOL TxShowScrollBar(INT fnBar, BOOL fShow) override;
BOOL TxEnableScrollBar(INT fuSBFlags, INT fuArrowflags) override;
BOOL TxSetScrollRange(INT fnBar, LONG nMinPos, INT nMaxPos, BOOL fRedraw) override;
BOOL TxSetScrollPos(INT fnBar, INT nPos, BOOL fRedraw) override;
void TxInvalidateRect(LPCRECT prc, BOOL fMode) override;
void TxViewChange(BOOL fUpdate) override;
BOOL TxCreateCaret(HBITMAP hbmp, INT xWidth, INT yHeight) override;
BOOL TxShowCaret(BOOL fShow) override;
BOOL TxSetCaretPos(INT x, INT y) override;
BOOL TxSetTimer(UINT idTimer, UINT uTimeout) override;
void TxKillTimer(UINT idTimer) override;
void TxScrollWindowEx(INT dx, INT dy, LPCRECT lprcScroll, LPCRECT lprcClip, HRGN hrgnUpdate, LPRECT lprcUpdate, UINT fuScroll) override;
void TxSetCapture(BOOL fCapture) override;
void TxSetFocus() override;
void TxSetCursor(HCURSOR hcur, BOOL fText) override;
BOOL TxScreenToClient(LPPOINT lppt) override;
BOOL TxClientToScreen(LPPOINT lppt) override;
HRESULT TxActivate(LONG * plOldState) override;
HRESULT TxDeactivate(LONG lNewState) override;
HRESULT TxGetClientRect(LPRECT prc) override;
HRESULT TxGetViewInset(LPRECT prc) override;
HRESULT TxGetCharFormat(const CHARFORMATW **ppCF) override;
HRESULT TxGetParaFormat(const PARAFORMAT **ppPF) override;
COLORREF TxGetSysColor(int nIndex) override;
HRESULT TxGetBackStyle(TXTBACKSTYLE *pstyle) override;
HRESULT TxGetMaxLength(DWORD *plength) override;
HRESULT TxGetScrollBars(DWORD *pdwScrollBar) override;
HRESULT TxGetPasswordChar(wchar_t *pch) override;
HRESULT TxGetAcceleratorPos(LONG *pcp) override;
HRESULT TxGetExtent(LPSIZEL lpExtent) override;
HRESULT OnTxCharFormatChange(const CHARFORMATW * pcf) override;
HRESULT OnTxParaFormatChange(const PARAFORMAT * ppf) override;
HRESULT TxGetPropertyBits(DWORD dwMask, DWORD *pdwBits) override;
HRESULT TxNotify(DWORD iNotify, void *pv) override;
HIMC TxImmGetContext() override;
void TxImmReleaseContext(HIMC himc) override;
HRESULT TxGetSelectionBarWidth(LONG *lSelBarWidth) override;
// Custom functions
HRESULT CharFormatFromHFONT(CHARFORMAT2W* pCF, HFONT hFont);
HRESULT InitDefaultCharFormat();
HRESULT InitDefaultParaFormat();
};
void bbCodeParse(CFormattedTextDraw *ts);
#endif //__FORMATTEDTEXTDRAW_H_
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