(C++) ToggleButtonWidget

 

 

ToggleButtonWidget is a widget class for a ToggleButton.

Technical facts

 

 

 

 

 

 

./CppToggleButtonWidget/CppToggleButtonWidget.pri

 

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INCLUDEPATH += \     ../../Classes/CppToggleButtonWidget SOURCES += \     ../../Classes/CppToggleButtonWidget/togglebuttonwidget.cpp HEADERS  += \     ../../Classes/CppToggleButtonWidget/togglebuttonwidget.h OTHER_FILES += \     ../../Classes/CppToggleButtonWidget/Licence.txt

 

 

 

 

 

./CppToggleButtonWidget/togglebuttonwidget.h

 

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//--------------------------------------------------------------------------- /* ToggleButtonWidget, widget for the ToggleButton class Copyright 2011-2015 Richel Bilderbeek This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ //--------------------------------------------------------------------------- //From http://www.richelbilderbeek.nl/CppToggleButtonWidget.htm //--------------------------------------------------------------------------- #ifndef TOGGLEBUTTONWIDGET_H #define TOGGLEBUTTONWIDGET_H #include <boost/scoped_ptr.hpp> #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Weffc++" #pragma GCC diagnostic ignored "-Wunused-local-typedefs" #include "widget.h" #pragma GCC diagnostic pop namespace ribi { struct DrawCanvas; struct TextCanvas; struct ToggleButton; struct ToggleButtonWidget : public Widget {   explicit ToggleButtonWidget(     const bool pressed = false,     const unsigned char red = 255,     const unsigned char green = 255,     const unsigned char blue = 255   );   ToggleButtonWidget(const ToggleButtonWidget&) = delete;   ToggleButtonWidget& operator=(const ToggleButtonWidget&) = delete;   ~ToggleButtonWidget() noexcept {}   ///Obtain a read-and-write pointer to ToggleButton   ToggleButton * GetToggleButton() { return m_button.get(); }   ///Obtain a read-only pointer to ToggleButton   const ToggleButton * GetToggleButton() const { return m_button.get(); }   ///Respond to the user clicking on this class   void Click(const int x, const int y);   ///Obtain the version of this class   static std::string GetVersion() noexcept;   ///Obtain the version history of this class   static std::vector<std::string> GetVersionHistory() noexcept;   const boost::shared_ptr<DrawCanvas> ToDrawCanvas(const int width, const int height) const noexcept;   const boost::shared_ptr<TextCanvas> ToTextCanvas(const int width = 6, const int height = 4) const noexcept;   private:   boost::scoped_ptr<ToggleButton> m_button;   friend std::ostream& operator<<(std::ostream& os, const ToggleButtonWidget& button); }; std::ostream& operator<<(std::ostream& os, const ToggleButtonWidget& button); } //~namespace ribi #endif // TOGGLEBUTTONWIDGET_H

 

 

 

 

 

./CppToggleButtonWidget/togglebuttonwidget.cpp

 

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//--------------------------------------------------------------------------- /* ToggleButtonWidget, widget for the ToggleButton class Copyright 2011-2015 Richel Bilderbeek This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ //--------------------------------------------------------------------------- //From http://www.richelbilderbeek.nl/CppToggleButtonWidget.htm //--------------------------------------------------------------------------- #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Weffc++" #pragma GCC diagnostic ignored "-Wunused-local-typedefs" #pragma GCC diagnostic ignored "-Wunused-but-set-variable" #include "togglebuttonwidget.h" #include <cassert> //#include <cmath> #include <boost/math/constants/constants.hpp> #include "drawcanvas.h" #include "textcanvas.h" #include "togglebutton.h" #include "trace.h" #pragma GCC diagnostic pop ribi::ToggleButtonWidget::ToggleButtonWidget(   const bool pressed,   const unsigned char red,   const unsigned char green,   const unsigned char blue)   : m_button(new ToggleButton(pressed,red,green,blue)) { } void ribi::ToggleButtonWidget::Click(const int, const int) {   m_button->Toggle(); } std::string ribi::ToggleButtonWidget::GetVersion() noexcept {   return "1.4"; } std::vector<std::string> ribi::ToggleButtonWidget::GetVersionHistory() noexcept {   return {     "2011-07-03: version 1.0: initial version",     "2011-08-20: Version 1.1: added operator<<",     "2011-08-31: Version 1.2: added setting the color of a ToggleButton",     "2014-01-21: Version 1.3: added ToDrawCanvas",     "2014-03-28: Version 1.4: replaced custom Rect class by Boost.Geometry"   }; } const boost::shared_ptr<ribi::DrawCanvas> ribi::ToggleButtonWidget::ToDrawCanvas(   const int width_in, const int height_in) const noexcept {   boost::shared_ptr<DrawCanvas> canvas {     new DrawCanvas(width_in,height_in,CanvasColorSystem::invert)   };   //Pressed   //   //   //   //   //   //   //   //         ```.  -.```   // `.-:-:.`-``.  -.``-`.:-:-.`   ///M:.                     .:M/   //oM:.                     .:Mo <- y1 = y2 - 2.0   //`---::---`.``. .``.`---::--:-   //`h:.    ` ```. .``` `    .:d- <- y2 = 5/6   //  .-:-:-`-``. . .``-`-:-:-.   //       ` ```. . .``` `   //Toggled:   //         ```.  -.```   // `.-:-:.`-``.  -.``-`.:-:-.`   ///M:.                     .:M/  <- y1 = 1/6   //oM:.                     .:Mo   //.---::---`.``. .``.`---::---.   //..      ` ```. .``` `      ..   //..                         ..   //..                         ..   //..                         ..   //..                         ..   //`.                         --   //`h:.                     .:d- <- y2 = 5/6   //  .-:-:-`-``. . .``-`-:-:-.   //       ` ```. . .``` `   const double left = 1.0;   const double top  = 1.0;   const double right  = static_cast<double>(width_in ) - 2.0;   const double bottom = static_cast<double>(height_in) - 2.0;   const double height = bottom - top;   const double height_1_6 = height / 6.0;   const double y2 = top + (height * 5.0 / 6.0);   const double y1 = GetToggleButton()->IsPressed() ? y2 - 2.0 : top + (height * 1.0 / 6.0);   const double pi = boost::math::constants::pi<double>();   //Below   canvas->DrawArc(     left,     y2 - height_1_6,     right,     y2 + height_1_6,     0.5 * pi * boost::units::si::radian,     1.0 * pi * boost::units::si::radian   );   //Draw top   canvas->DrawEllipse(     left,     y1 - height_1_6,     right,     y1 + height_1_6   );   canvas->DrawLine(     left,     y1,     left,     y2   );   canvas->DrawLine(     right,     y1,     right,     y2   );   return canvas; } const boost::shared_ptr<ribi::TextCanvas> ribi::ToggleButtonWidget::ToTextCanvas(   const int width, const int height ) const noexcept {   const boost::shared_ptr<TextCanvas> canvas {     new TextCanvas(width,height)   };   assert(width  == 6 && "For now");   assert(height == 4 && "For now");   if (GetToggleButton()->IsPressed())   {     canvas->PutText(0,0," ____ ");     canvas->PutText(0,1,"|    |");     canvas->PutText(0,2,"|____|");   }   else   {     canvas->PutText(0,0," ____ ");     canvas->PutText(0,1,"|    |");     canvas->PutText(0,2,"|____|");     canvas->PutText(0,3,"|____|");   }   return canvas; } std::ostream& ribi::operator<<(std::ostream& os, const ToggleButtonWidget& button) {   os     << "<ToggleButtonWidget>"     << *button.m_button     //<< button.GetGeometry()     << "</ToggleButtonWidget>";   return os; }