refs #304, added QLed widget

This commit is contained in:
Klaus Basan
2014-07-27 15:08:52 +02:00
parent 4fe8144c3d
commit 17a8425883
2 changed files with 337 additions and 0 deletions

204
src/blackgui/led.cpp Normal file
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/***************************************************************************
* Copyright (C) 2010 by P. Sereno *
* http://www.sereno-online.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License *
* version 2.1 as published by the Free Software Foundation *
* *
* 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 Lesser General Public License for more details. *
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. *
***************************************************************************/
#include <QColor>
#include <QtGlobal>
#include <QtGui>
#include <QPolygon>
#include <QtSvg>
#include <QSvgRenderer>
#include "led.h"
namespace BlackGui
{
CLed::CLed(QWidget *parent) : QWidget(parent)
{
this->setLed();
}
CLed::CLed(bool on, CLed::LedColors onColor, CLed::LedColors offColor, CLed::LedShapes shape, QWidget *parent) :
QWidget(parent), m_value(on), m_onColor(onColor), m_offColor(offColor), m_shape(shape)
{
this->setLed();
}
void CLed::setLed(LedColors tempColor)
{
// load image, init renderer
QString ledShapeAndColor;
ledShapeAndColor = shapes().at(static_cast<int>(this->m_shape));
if (tempColor == NoColor)
{
if (m_value)
{
this->setToolTip(this->m_tooltipOn);
ledShapeAndColor.append(CLed::colorString(this->m_onColor));
}
else
{
this->setToolTip(this->m_tooltipOff);
ledShapeAndColor.append(CLed::colorString(this->m_offColor));
}
}
else
{
this->setToolTip("transition");
ledShapeAndColor.append(CLed::colorString(tempColor));
}
// init renderer, allow re-init
bool firstTime = false;
if (!m_renderer)
{
firstTime = true;
m_renderer = new QSvgRenderer(this);
}
m_renderer->load(ledShapeAndColor);
// original size
QSize s = m_renderer->defaultSize();
this->m_whRatio = s.width() / s.height();
// size
if (this->m_targetWidth < 0)
{
this->m_targetWidth = widths().at(static_cast<int>(m_shape));
}
double w = this->m_targetWidth;
double h = w / this->m_whRatio;
this->setFixedHeight(qRound(h));
this->setFixedWidth(qRound(w));
if (!firstTime)
{
// re-init
this->update();
}
}
const QString &CLed::colorString(CLed::LedColors color)
{
static const QString empty;
if (color == NoColor) return empty;
return colors().at(static_cast<int>(color));
}
CLed::~CLed()
{
delete m_renderer;
}
void CLed::setToolTips(const QString &on, const QString &off)
{
this->m_tooltipOn = on;
this->m_tooltipOff = off;
if (this->m_value)
{
this->setToolTip(on);
}
else
{
this->setToolTip(off);
}
}
void CLed::setOnToolTip(const QString &on)
{
this->setToolTips(on, this->m_tooltipOff);
}
void CLed::paintEvent(QPaintEvent *)
{
// init style sheets with this widget
QStyleOption opt;
opt.init(this);
// paint
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing, true);
painter.setBackgroundMode(Qt::TransparentMode);
m_renderer->render(&painter);
}
void CLed::setOnColor(LedColors color)
{
if (color == this->m_onColor) return;
m_onColor = color;
setLed();
}
void CLed::setOffColor(LedColors color)
{
if (color == this->m_offColor) return;
m_offColor = color;
setLed();
}
void CLed::setTemporaryColor(CLed::LedColors color)
{
setLed(color);
}
void CLed::setShape(LedShapes newShape)
{
if (newShape == this->m_shape) return;
m_shape = newShape;
setLed();
}
void CLed::setValues(CLed::LedColors onColor, CLed::LedColors offColor, CLed::LedShapes shape, const QString &toolTipOn, const QString &toolTipOff, int width)
{
m_onColor = onColor;
m_offColor = offColor;
m_shape = shape;
m_tooltipOn = toolTipOn;
m_tooltipOff = toolTipOff;
m_targetWidth = width;
setLed();
}
void CLed::setValue(bool value)
{
if (value == m_value) return;
m_value = value;
setLed();
}
void CLed::toggleValue()
{
m_value = !m_value;
setLed();
}
const QStringList &CLed::shapes()
{
static const QStringList shapes( {":/qled/icons/qled/circle_" , ":/qled/icons/qled/square_" , ":/qled/icons/qled/triang_" , ":/qled/icons/qled/round_"});
return shapes;
}
const QStringList &CLed::colors()
{
static const QStringList colors( { "red.svg", "green.svg", "yellow.svg", "grey.svg", "orange.svg", "purple.svg", "blue.svg", "black.svg" });
return colors;
}
const QList<int> &CLed::widths()
{
static const QList<int> widths({ 16 , 16, 16, 16});
return widths;
}
}

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src/blackgui/led.h Normal file
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/***************************************************************************
* Copyright (C) 2010 by P. Sereno *
* http://www.sereno-online.com *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License *
* version 2.1 as published by the Free Software Foundation *
* *
* 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 Lesser General Public License for more details. *
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. *
***************************************************************************/
#ifndef BLACKGUI_LED_H
#define BLACKGUI_LED_H
#include <Qt>
#include <QWidget>
#include <QtDesigner/QDesignerExportWidget>
class QColor;
class QSvgRenderer;
namespace BlackGui
{
//! Displaying an LED
//! \remarks Based on qLed
class CLed : public QWidget
{
Q_OBJECT
Q_ENUMS(LedColors)
Q_ENUMS(LedShapes)
//! Value on/off
Q_PROPERTY(bool value READ value WRITE setValue)
//! Color when on
Q_PROPERTY(LedColors onColor READ onColor WRITE setOnColor)
//! Color when off
Q_PROPERTY(LedColors offColor READ offColor WRITE setOffColor)
//! Shape
Q_PROPERTY(LedShapes shape READ shape WRITE setShape)
public:
//! Colors
//! \remarks None has to be last entry
enum LedColors { Red = 0, Green, Yellow, Grey, Orange, Purple, Blue, Black, NoColor};
//! Shapes
enum LedShapes { Circle = 0, Square, Triangle, Rounded};
//! Constructor
CLed(QWidget *parent = nullptr);
//! Constructor
CLed(bool on, LedColors onColor, LedColors offColor, LedShapes shape, QWidget *parent = nullptr);
//! Destructor
virtual ~CLed();
//! Value
bool value() const { return m_value; }
//! On color
LedColors onColor() const { return m_onColor; }
//! Off color
LedColors offColor() const { return m_offColor; }
//! Shape
LedShapes shape() const { return m_shape; }
//! Allows to set the led value {true,false}
void setValue(bool);
//! Allows to change the On color {Red,Green,Yellow,Grey,Orange,Purple,blue}
void setOnColor(LedColors color);
//! Allows to change the Off color {Red,Green,Yellow,Grey,Orange,Purple,blue}
void setOffColor(LedColors color);
//! Temporary color until next value change
void setTemporaryColor(LedColors color);
//! Tool tips
void setToolTips(const QString &on, const QString &off);
//! On tool tip
void setOnToolTip(const QString &on);
//! Allows to change the led shape {Circle,Square,Triangle,Rounded rectangle}
void setShape(LedShapes);
//! Target width
void setTargetWidth(int width) { this->m_targetWidth = width; }
//! New values
void setValues(LedColors onColor, LedColors offColor, LedShapes shape, const QString &toolTipOn, const QString &toolTipOff, int width = -1);
//! Toggle on / off
void toggleValue();
protected:
bool m_value = false; //!< current value
LedColors m_onColor = Red; //!< On color
LedColors m_offColor = Grey; //!< Off color
LedShapes m_shape = Circle; //!< shape
double m_whRatio = 1.0; //!< width/height ratio
int m_targetWidth = -1; //!< TargetWidth
//! All shapes
static const QStringList &shapes();
//! All colors
static const QStringList &colors();
//! All target widths
static const QList<int> &widths();
//! Paint event
void paintEvent(QPaintEvent *event);
private:
QSvgRenderer *m_renderer = nullptr; //!< Renderer
QString m_tooltipOn;
QString m_tooltipOff;
void setLed(LedColors tempColor = NoColor); //!< Init LED
static const QString &colorString(LedColors color); //!<Color string
};
}
#endif