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Pen: a C++ class | ||
This class is used in
The header filePen.h
/* Pen.h Copyright (C) 2002-2005 René Nyffenegger This source code is provided 'as-is', without any express or implied warranty. In no event will the author be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this source code must not be misrepresented; you must not claim that you wrote the original source code. If you use this source code in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original source code. 3. This notice may not be removed or altered from any source distribution. René Nyffenegger rene.nyffenegger@adp-gmbh.ch */ #ifndef PEN_H_ #define PEN_H_ #include <string> #include <sstream> #include <windows.h> class Pen { public: enum style { solid = PS_SOLID, dashed = PS_DASH, dotted = PS_DOT, dashdot = PS_DASHDOT, dashdotdot = PS_DASHDOTDOT, invisible = PS_NULL, inside = PS_INSIDEFRAME, }; /*! \short This constructor creates a pen, using CreatePen, described at * http://msdn.microsoft.com/library/en-us/gdi/pens_9wha.asp?frame=true */ Pen(unsigned char r, unsigned char g, unsigned char b, unsigned int width=1, style st=solid); ~Pen(); protected: friend class DC; Pen(HPEN p) : pen_(p){}; operator HPEN() const {return pen_;}; private: HPEN pen_; }; #endif The implementation filePen.cpp
/* Pen.cpp Copyright (C) 2002-2005 René Nyffenegger This source code is provided 'as-is', without any express or implied warranty. In no event will the author be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions: 1. The origin of this source code must not be misrepresented; you must not claim that you wrote the original source code. If you use this source code in a product, an acknowledgment in the product documentation would be appreciated but is not required. 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original source code. 3. This notice may not be removed or altered from any source distribution. René Nyffenegger rene.nyffenegger@adp-gmbh.ch */ #include "Pen.h" Pen::Pen(unsigned char r, unsigned char g, unsigned char b, unsigned int width, style st) { pen_ = ::CreatePen(st, width, RGB(r,g,b)); if (!pen_) { throw "Couldn't create pen"; } } Pen::~Pen() { ::DeleteObject(pen_); } |