Inserito il widget QLed

[qmemory] / qled.cpp

diff --git a/qled.cpp b/qled.cpp
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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 <QDebug>
+#include "qled.h"
+
+
+/*!
+  \brief QLed: this is the QLed constructor.
+  \param parent: The Parent Widget
+*/
+QLed::QLed(QWidget *parent)
+    : QWidget(parent)
+{
+   m_value=false;
+   m_onColor=Red;
+   m_offColor=Grey;
+   m_shape=Circle;
+   setMinimumSize(QSize(50,50));
+   shapes << ":/resources/circle_" << ":/resources/square_" << ":/resources/triang_" << ":/resources/round_";
+   colors << "red.svg" << "green.svg" << "yellow.svg" << "grey.svg" << "orange.svg" << "purple.svg" << "blue.svg";
+
+}
+
+
+/*!
+  \brief paintEvent: painting method
+  \param QPaintEvent *
+  \return void
+*/
+void QLed::paintEvent(QPaintEvent *)
+{
+    qDebug()<<"pain";
+    QSvgRenderer *renderer = new QSvgRenderer();
+    QString ledShapeAndColor;
+    QPainter painter(this);
+    painter.setRenderHint(QPainter::Antialiasing, true);
+
+    ledShapeAndColor=shapes[m_shape];
+
+    if(m_value)
+        ledShapeAndColor.append(colors[m_onColor]);
+    else
+        ledShapeAndColor.append(colors[m_offColor]);
+
+    renderer->load(ledShapeAndColor);
+    renderer->render(&painter);
+
+}
+
+
+/*!
+  \brief setOnColor: this method allows to change the On color {Red,Green,Yellow,Grey,Orange,Purple,blue}
+  \param ledColor newColor
+  \return void
+*/
+void QLed::setOnColor(ledColor newColor)
+{
+   m_onColor=newColor;
+   update();
+}
+
+
+/*!
+  \brief setOffColor: this method allows to change the Off color {Red,Green,Yellow,Grey,Orange,Purple,blue}
+  \param ledColor newColor
+  \return void
+*/
+void QLed::setOffColor(ledColor newColor)
+{
+   m_offColor=newColor;
+   update();
+}
+
+
+/*!
+  \brief setShape: this method allows to change the led shape {Circle,Square,Triangle,Rounded rectangle}
+  \param ledColor newColor
+  \return void
+*/
+void QLed::setShape(ledShape newShape)
+{
+   m_shape=newShape;
+   update();
+}
+
+
+/*!
+  \brief setValue: this method allows to set the led value {true,false}
+  \param ledColor newColor
+  \return void
+*/
+void QLed::setValue(bool value)
+{
+   m_value=value;
+   update();
+}
+
+
+/*!
+  \brief toggleValue: this method toggles the led value
+  \param ledColor newColor
+  \return void
+*/
+void QLed::toggleValue()
+{ 
+       m_value=!m_value;
+       update();
+       return; 
+}