//---------------------------------------------------------------------------
/*
WtDialWidget, Wt widget for displaying the Dial class
Copyright (C) 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/CppWtDialWidget.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 "wtdialwidget.h"
#include <boost/bind.hpp>
#include <boost/numeric/conversion/cast.hpp>
#include <Wt/WBrush>
#include <Wt/WEvent>
#include <Wt/WPainter>
#include <Wt/WPen>
#include "dial.h"
#include "dialwidget.h"
#include "geometry.h"
#pragma GCC diagnostic pop
ribi::WtDialWidget::WtDialWidget(
const double intensity,
const unsigned char red,
const unsigned char green,
const unsigned char blue)
: m_widget(new DialWidget(intensity,red,green,blue))
{
assert(m_widget);
m_widget->GetDial()->m_signal_color_changed.connect(
boost::bind(
&ribi::WtDialWidget::DoRepaint,
this));
m_widget->GetDial()->m_signal_position_changed.connect(
boost::bind(
&ribi::WtDialWidget::DoRepaint,
this));
m_widget->m_signal_geometry_changed.connect(
boost::bind(
&ribi::WtDialWidget::OnResize,
this));
this->clicked().connect(this,&ribi::WtDialWidget::OnClicked);
m_widget->SetGeometry(0,0,32,32);
}
void ribi::WtDialWidget::DoRepaint()
{
this->update();
}
void ribi::WtDialWidget::DrawDial(
Wt::WPainter& painter,
const int left, const int top,
const int width, const int height,
const Dial * const dial)
{
const double position = dial->GetPosition();
//Draw knob
{
Wt::WPen pen = painter.pen();
pen.setWidth(1);
pen.setColor(Wt::WColor(0,0,0));
painter.setPen(pen);
}
painter.setBrush(Wt::WColor(
dial->GetRed(),
dial->GetGreen(),
dial->GetBlue()));
painter.drawEllipse(left+1,top+1,width-2,height-2);
//Draw pointer
const int midx = width / 2;
const int midy = height / 2;
const double ray = static_cast<double>(std::min( midx, midy ));
const double two_pi = boost::math::constants::two_pi<double>();
const double angle = position * two_pi;
const int pointerX
= static_cast<int>( static_cast<double>(midx) + (std::sin(angle) * ray) );
const int pointerY
= static_cast<int>( static_cast<double>(midy) - (std::cos(angle) * ray) );
{
Wt::WPen pen = painter.pen();
pen.setWidth(4);
painter.setPen(pen);
}
painter.drawLine(left+midx,top+midy,left+pointerX,top+pointerY);
}
void ribi::WtDialWidget::DrawDial(
Wt::WPainter& painter,
const DialWidget * const widget)
{
DrawDial(
painter,
Geometry().GetLeft(widget->GetGeometry()),
Geometry().GetTop(widget->GetGeometry()),
Geometry().GetWidth(widget->GetGeometry()),
Geometry().GetHeight(widget->GetGeometry()),
widget->GetDial()
);
}
std::string ribi::WtDialWidget::GetVersion()
{
return "3.2";
}
std::vector<std::string> ribi::WtDialWidget::GetVersionHistory()
{
return {
"2011-04-10: version 1.0: initial version",
"2011-04-11: version 1.1: fixed #include guard, fixed initial date, made default dial white",
"2011-07-03: version 2.0: moved Dial its user interface logic to new class DialWidget",
"2011-08-07: Version 3.0: conformized architure for MysteryMachine",
"2011-08-31: Version 3.1: allow changing the dial its color",
"2014-04-23: Version 3.2: use of Boost.Geometry its rectangle class"
};
}
void ribi::WtDialWidget::OnClicked(const Wt::WMouseEvent& e)
{
m_widget->Click(e.widget().x,e.widget().y);
}
void ribi::WtDialWidget::OnResize()
{
resize(
Geometry().GetWidth(m_widget->GetGeometry()),
Geometry().GetHeight(m_widget->GetGeometry())
);
}
void ribi::WtDialWidget::paintEvent(Wt::WPaintDevice *paintDevice)
{
Wt::WPainter painter(paintDevice);
this->DrawDial(painter,m_widget.get());
}
void ribi::WtDialWidget::resize(const Wt::WLength& width, const Wt::WLength& height)
{
Wt::WPaintedWidget::resize(width,height);
}
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