69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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// Name: wx/textwrapper.h
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// Purpose: declaration of wxTextWrapper class
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// Author: Vadim Zeitlin
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// Created: 2009-05-31 (extracted from dlgcmn.cpp via wx/private/stattext.h)
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// RCS-ID: $Id$
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// Copyright: (c) 1999, 2009 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_TEXTWRAPPER_H_
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#define _WX_TEXTWRAPPER_H_
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// ----------------------------------------------------------------------------
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// wxTextWrapper
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// ----------------------------------------------------------------------------
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// this class is used to wrap the text on word boundary: wrapping is done by
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// calling OnStartLine() and OnOutputLine() functions
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class wxTextWrapper
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{
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public:
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wxTextWrapper() { m_eol = false; }
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// win is used for getting the font, text is the text to wrap, width is the
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// max line width or -1 to disable wrapping
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void Wrap(wxWindow *win, const wxString& text, int widthMax);
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// we don't need it, but just to avoid compiler warnings
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virtual ~wxTextWrapper() { }
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protected:
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// line may be empty
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virtual void OnOutputLine(const wxString& line) = 0;
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// called at the start of every new line (except the very first one)
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virtual void OnNewLine() { }
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private:
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// call OnOutputLine() and set m_eol to true
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void DoOutputLine(const wxString& line)
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{
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OnOutputLine(line);
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m_eol = true;
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}
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// this function is a destructive inspector: when it returns true it also
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// resets the flag to false so calling it again wouldn't return true any
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// more
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bool IsStartOfNewLine()
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{
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if ( !m_eol )
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return false;
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m_eol = false;
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return true;
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}
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bool m_eol;
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wxDECLARE_NO_COPY_CLASS(wxTextWrapper);
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};
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#endif // _WX_TEXTWRAPPER_H_
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