omni::ui::proj::ColorCorrectionGraph Class Reference

Widget which draws the graph for color corrections for each channel. More...

#include <ColorCorrectionGraph.h>

Inheritance diagram for omni::ui::proj::ColorCorrectionGraph:

Collaboration diagram for omni::ui::proj::ColorCorrectionGraph:

Signals
void	dataModelChanged ()

Public Member Functions
	ColorCorrectionGraph (QWidget *=nullptr)
	~ColorCorrectionGraph ()
Channel	channel () const
	Return selected channel. More...
void	setChannel (Channel _channel)
	Set selected channel. More...
Public Member Functions inherited from omni::ui::mixin::DataModel< DATAMODEL, SHARED >
	DataModel ()
void	setDataModel (pointer_type _dataModel)
	Set new data model. More...
pointer_type	dataModel ()
	Return pointer to data model. More...
const pointer_type	dataModel () const
	Return pointer to data model (const version) More...
virtual void	updateFrontend ()
	Push data to frontend widgets and all child widgets. More...
virtual void	updateDataModel ()
	Update the data model interface. More...

Protected Member Functions
void	paintEvent (QPaintEvent *)
	Paint graph event. More...
void	resizeEvent (QResizeEvent *)
	Re-paint on resize. More...
Protected Member Functions inherited from omni::ui::mixin::Locked
template<typename F >
void	locked (F f)
	Lock widget and execute given functor. More...
bool	isLocked () const
	Return true if widget is locked. More...

Private Member Functions
void	dataToFrontend ()
	Update widget from current color correction. More...
bool	frontendToData ()
	ColorCorrectionGraph cannot change data, hence there is nothing to do here. More...
void	drawGraphs (QPainter &_p, bool _selected) const
	Draw selected graphs. More...
void	drawGraphForChannel (QPainter &, omni::proj::ChannelCorrection const &, QColor _color, bool _selected) const
	Draw graph for a channel correction. More...
void	drawGraphForChannel (QPainter &, Channel _channel) const
	Draw graph for a channel. More...
void	drawGridLines (QPainter &)
	Draw grid lines in background. More...

Private Attributes
Channel	channel_ = Channel::ALL

Additional Inherited Members
Public Types inherited from omni::ui::mixin::DataModel< DATAMODEL, SHARED >
typedef DATAMODEL	data_model_type
	Data type. More...
typedef DataModel < data_model_type, SHARED >	type
	This type. More...
typedef detail::PointerType < data_model_type, SHARED >	pointer_type_handler
	Pointer type handler. More...
typedef pointer_type_handler::type	pointer_type
	Derived pointer type. More...

Detailed Description

Widget which draws the graph for color corrections for each channel.

Constructor & Destructor Documentation

omni::ui::proj::ColorCorrectionGraph::ColorCorrectionGraph

(

QWidget *

_parent = nullptr

)

                                                                       : QWidget(_parent) {

            }

omni::ui::proj::ColorCorrectionGraph::~ColorCorrectionGraph

(

)

                                                        {

            }

Member Function Documentation

Channel omni::ui::proj::ColorCorrectionGraph::channel

(

)

const

Return selected channel.

                                                        {
                return channel_;
            }

void omni::ui::proj::ColorCorrectionGraph::dataModelChanged ( )

signal

void omni::ui::proj::ColorCorrectionGraph::dataToFrontend ( )

privatevirtual

Update widget from current color correction.

Implements omni::ui::mixin::DataModel< DATAMODEL, SHARED >.

                                                      {
                update();
            }

void omni::ui::proj::ColorCorrectionGraph::drawGraphForChannel ( QPainter &  _p, omni::proj::ChannelCorrection const &  _correction, QColor  _color, bool  _selected  ) const

private

Draw graph for a channel correction.

                                                     {

                QRectF _rect = QRectF(rect()).adjusted(2,2,-2,-2);

                _p.setBrush(Qt::NoBrush);


                QPen _pen(_color,_selected ? 1.5 : 1,Qt::SolidLine);
                _p.setPen(_pen);

                QPainterPath _path;
                for (double _posX = _rect.left(); _posX <= _rect.right(); _posX += 2) {
                    double _x = (_posX - _rect.left()) / double(_rect.width());
                    double _y = qBound(0.0,_correction.corrected(_x),1.0);
                    double _posY = float(_rect.height()) - _y*_rect.height() + _rect.top();
                    if (_posX == _rect.left()) {
                        _path.moveTo(_posX,_posY);
                    } else {
                        _path.lineTo(_posX,_posY);
                    }
                }

                _p.drawPath(_path);
            }

void omni::ui::proj::ColorCorrectionGraph::drawGraphForChannel ( QPainter &  _p, Channel  _channel  ) const

private

Draw graph for a channel.

                                                                                               {
                if (!dataModel()) return;

                bool _selected = channel() == _channel;
                drawGraphForChannel(_p,*dataModel()->correction(_channel),
                    omni::proj::ColorCorrection::channelColor(_channel),_selected);
            }

void omni::ui::proj::ColorCorrectionGraph::drawGraphs ( QPainter &  _p, bool  _selected  ) const

private

Draw selected graphs.

                                                                                    {
                auto _drawGraph = [&](Channel _channel) {
                    if ((channel() == _channel) == _selected)
                        drawGraphForChannel(_p,_channel);
                };
                _drawGraph(Channel::ALL);
                _drawGraph(Channel::RED);
                _drawGraph(Channel::GREEN);
                _drawGraph(Channel::BLUE);
            }

void omni::ui::proj::ColorCorrectionGraph::drawGridLines ( QPainter &  _p )

private

Draw grid lines in background.

                                                                 {
                QRectF _rect = QRectF(rect()).adjusted(2,2,-2,-2);
                QPen _pen("#080808");
                _p.setPen(_pen);
                // Draw vertical lines
                for (double _posX = _rect.left(); _posX <= _rect.right(); _posX += _rect.width()/8) {
                    _p.drawLine(_posX,_rect.top(),_posX,_rect.bottom());
                }

                // Draw horizontal lines
                for (double _posY = _rect.top(); _posY <= _rect.bottom(); _posY += _rect.height()/8) {
                    _p.drawLine(_rect.left(),_posY,_rect.right(),_posY);
                }
            }

bool omni::ui::proj::ColorCorrectionGraph::frontendToData ( )

inlineprivatevirtual

ColorCorrectionGraph cannot change data, hence there is nothing to do here.

Implements omni::ui::mixin::DataModel< DATAMODEL, SHARED >.

                                       {
            return false;
          }

void omni::ui::proj::ColorCorrectionGraph::paintEvent ( QPaintEvent *  _paintEvent )

protected

Paint graph event.

                                                                          {
                QPainter _painter(this);
                _painter.setRenderHint(QPainter::HighQualityAntialiasing);
                _painter.setRenderHint(QPainter::Antialiasing, true);

                QRect _rect = rect();

                _painter.setBrush(QBrush("#212121"));
                _painter.setPen(Qt::NoPen);
                _painter.drawRect(_rect);
                drawGridLines(_painter);

                if (!isEnabled()) return;

                // Draw not selected graphs first
                drawGraphs(_painter,false);

                // Draw selected graphs after
                drawGraphs(_painter,true);
            }

void omni::ui::proj::ColorCorrectionGraph::resizeEvent ( QResizeEvent *  _resizeEvent )

protected

Re-paint on resize.

                                                                             {
                update();
            }

void omni::ui::proj::ColorCorrectionGraph::setChannel

(

Channel

_channel

)

Set selected channel.

                                                                  {
                channel_ = _channel;
            }

Field Documentation

Channel omni::ui::proj::ColorCorrectionGraph::channel_ = Channel::ALL

private

---

The documentation for this class was generated from the following files:

• include/omni/ui/proj/ColorCorrectionGraph.h
• src/lib/ui/proj/ColorCorrectionGraph.cpp