(C++) QtToggleButtonWidget
January 25, 2018 · View on GitHub
(C++) QtToggleButtonWidget
QtToggleButtonWidget is a Qt widget class to display an ToggleButtonWidget.
Technical facts
./CppQtToggleButtonWidget/CppQtToggleButtonWidget.pri
INCLUDEPATH += \ ../../Classes/CppQtToggleButtonWidget SOURCES += \ ../../Classes/CppQtToggleButtonWidget/qttogglebuttonwidget.cpp HEADERS += \ ../../Classes/CppQtToggleButtonWidget/qttogglebuttonwidget.h OTHER_FILES += \ ../../Classes/CppQtToggleButtonWidget/Licence.txt
./CppQtToggleButtonWidget/qttogglebuttonwidget.h
//--------------------------------------------------------------------------- /* QtToggleButtonWidget, Qt widget for displaying the ToggleButtonWidget 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/CppQtToggleButtonWidget.htm //--------------------------------------------------------------------------- #ifndef QTTOGGLEBUTTONWIDGET_H #define QTTOGGLEBUTTONWIDGET_H #include <string> #include <vector> #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Weffc++" #pragma GCC diagnostic ignored "-Wunused-local-typedefs" #include <boost/signals2.hpp> #include <QWidget> #pragma GCC diagnostic pop namespace ribi { struct ToggleButton; struct ToggleButtonWidget; ///QtToggleButtonWidget displays a ToggleButton struct QtToggleButtonWidget : public QWidget { ///A QtToggleButtonWidget is created by its toggle state and its color QtToggleButtonWidget( const bool toggled = false, const unsigned char red = 255, const unsigned char green = 255, const unsigned char blue = 255); ///Obtain a read-only pointer to the ToggleButton const ToggleButtonWidget * GetWidget() const { return m_widget.get(); } ///Obtain a read-and-write pointer to the ToggleButton ToggleButtonWidget * GetWidget() { return m_widget.get(); } ///Signal that is emitted when a QtToggleButtonWidget is toggled mutable boost::signals2::signal<void ()> m_signal_toggled; ///Obtain the QtToggleButtonWidget its version static std::string GetVersion() noexcept; ///Obtain the QtToggleButtonWidget its version history static std::vector<std::string> GetVersionHistory() noexcept; ///Draw a ToggleButton from a ToggleButton static void DrawToggleButton( QPainter& painter, const int left, const int top, const int width, const int height, const ToggleButton * const toggle_button); ///Draw a ToggleButton from a ToggleButtonWidget static void DrawToggleButton( QPainter& painter, const boost::shared_ptr<const ToggleButtonWidget> widget ); protected: ///Paint the QtToggleButtonWidget void paintEvent(QPaintEvent * event); ///Resize the QtToggleButtonWidget void resizeEvent(QResizeEvent *); private: ///The ToggleButton boost::shared_ptr<ToggleButtonWidget> m_widget; ///Repaint the QtToggleButtonWidget void DoRepaint(); ///Respond to mouse click void mousePressEvent(QMouseEvent * e); }; } //~namespace ribi #endif // QTTOGGLEBUTTONWIDGET_H
./CppQtToggleButtonWidget/qttogglebuttonwidget.cpp
//--------------------------------------------------------------------------- /* QtToggleButtonWidget, Qt widget for displaying the ToggleButtonWidget 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/CppQtToggleButtonWidget.htm //--------------------------------------------------------------------------- #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Weffc++" #pragma GCC diagnostic ignored "-Wunused-local-typedefs" #pragma GCC diagnostic ignored "-Wunused-but-set-parameter" #include "qttogglebuttonwidget.h" #include <cassert> #include <iostream> #include <boost/bind.hpp> #include <boost/numeric/conversion/cast.hpp> #include <QBrush> #include <QMouseEvent> #include <QPainter> #include <QPen> #include "togglebutton.h" #include "togglebuttonwidget.h" #pragma GCC diagnostic pop ribi::QtToggleButtonWidget::QtToggleButtonWidget( const bool toggled, const unsigned char red, const unsigned char green, const unsigned char blue) : m_signal_toggled{}, m_widget(new ToggleButtonWidget(toggled,red,green,blue)) { assert(m_widget); m_widget->GetToggleButton()->m_signal_toggled.connect( boost::bind( &ribi::QtToggleButtonWidget::DoRepaint, this)); m_widget->GetToggleButton()->m_signal_color_changed.connect( boost::bind( &ribi::QtToggleButtonWidget::DoRepaint, this)); this->resize(200,100); this->update(); } void ribi::QtToggleButtonWidget::DoRepaint() { this->update(); m_signal_toggled(); } void ribi::QtToggleButtonWidget::DrawToggleButton( QPainter& painter, const int left, const int top, const int width, const int height, const ToggleButton * const button) { const int maxx = width - 1; const int maxy = height -1; painter.setBrush(QColor( button->GetRed(), button->GetGreen(), button->GetBlue())); //Draw base painter.drawArc( left + 0, top + (maxy * 1 / 3), maxx, maxy * 2 / 3, 180 * 16, 180 * 16); //Draw top painter.drawEllipse( left + 0, top + (button->IsPressed() ? (maxy * 1 / 3) - 2 : 0.0), maxx, maxy * 2 / 3); painter.drawLine( left, top + (button->IsPressed() ? (maxy * 2 / 3) - 2 : (maxy * 1 / 3)), left, top + (maxy * 2 / 3)); painter.drawLine( left + maxx, top + (button->IsPressed() ? (maxy * 2 / 3) - 2 : (maxy * 1 / 3)), left + maxx, top + (maxy * 2 / 3)); } void ribi::QtToggleButtonWidget::DrawToggleButton( QPainter& painter, const boost::shared_ptr<const ToggleButtonWidget> widget) { DrawToggleButton( painter, widget->GetLeft(), widget->GetTop(), widget->GetWidth(), widget->GetHeight(), widget->GetToggleButton() ); } std::string ribi::QtToggleButtonWidget::GetVersion() noexcept { return "1.1"; } std::vector<std::string> ribi::QtToggleButtonWidget::GetVersionHistory() noexcept { return { "2011-06-16: version 1.0: initial version", "2014-03-28: Version 1.1: replaced custom Rect class by Boost.Geometry" }; } void ribi::QtToggleButtonWidget::mousePressEvent(QMouseEvent * e) { //m_widget signals its observers for a repaint m_widget->Click(e->x(),e->y()); } void ribi::QtToggleButtonWidget::paintEvent(QPaintEvent *) { QPainter painter(this); DrawToggleButton(painter,m_widget); } void ribi::QtToggleButtonWidget::resizeEvent(QResizeEvent *) { this->m_widget->SetGeometry(0,0,this->width(),this->height()); repaint(); }