Animation implementation based on spyder-ide/qtawesome.

Stil work in progress, we need to improve the interface for setting the animation.

QtAwesome/QtAwesome.cpp

@@ -8,6 +8,7 @@
  */
 
 #include "QtAwesome.h"
+#include "QtAwesomeAnim.h"
 
 #include <QDebug>
 #include <QFile>
@@ -27,6 +28,13 @@ public:
 
         painter->save();
 
+        QObject* qanim = qvariant_cast<QObject*>(options.value("anim"));
+        QtAwesomeAnimation* anim = qobject_cast<QtAwesomeAnimation*>(qanim);
+        if( anim ) {
+            anim->setup( *painter, rect );
+        }
+
+
         // set the correct color
         QColor color = options.value("color").value<QColor>();
         QString text = options.value("text").toString();

QtAwesome/QtAwesome.h

@@ -10,6 +10,8 @@
 #ifndef QTAWESOME_H
 #define QTAWESOME_H
 
+#include "QtAwesomeAnim.h"
+
 #include <QIcon>
 #include <QIconEngine>
 #include <QPainter>

QtAwesome/QtAwesome.pri

@@ -1,9 +1,11 @@
 
 INCLUDEPATH += $$PWD
 
-SOURCES += $$PWD/QtAwesome.cpp 
+SOURCES += $$PWD/QtAwesome.cpp \  
+    $$PWD/QtAwesomeAnim.cpp
 
-HEADERS += $$PWD/QtAwesome.h 
+HEADERS += $$PWD/QtAwesome.h \   
+    $$PWD/QtAwesomeAnim.h
     
 RESOURCES += $$PWD/QtAwesome.qrc
 

QtAwesome/QtAwesomeAnim.cpp

@@ -0,0 +1,46 @@
+#include "QtAwesomeAnim.h"
+
+#include <cmath>
+#include <QPainter>
+#include <QRect>
+#include <QTimer>
+#include <QWidget>
+
+
+QtAwesomeAnimation::QtAwesomeAnimation(QWidget *parentWidget, int interval, int step)
+    : parentWidgetRef_( parentWidget )
+    , timer_( 0 )
+    , interval_( interval )
+    , step_( step )
+    , angle_( 0.0f )
+{
+
+}
+
+void QtAwesomeAnimation::setup( QPainter &painter, const QRect &rect)
+{
+    // first time set the timer
+    if( !timer_ )
+    {
+        timer_ = new QTimer();
+        connect(timer_,SIGNAL(timeout()), this, SLOT(update()) );
+        timer_->start(interval_);
+    }
+    else
+    {
+        //timer, angle, self.step = self.info[self.parent_widget]
+        float x_center = rect.width() * 0.5;
+        float y_center = rect.height() * 0.5;
+        painter.translate(x_center, y_center);
+        painter.rotate(angle_);
+        painter.translate(-x_center, -y_center);
+    }
+}
+
+
+void QtAwesomeAnimation::update()
+{
+    angle_ += step_;
+    angle_ = std::fmod( angle_, 360);
+    parentWidgetRef_->update();
+}

QtAwesome/QtAwesomeAnim.h

@@ -0,0 +1,36 @@
+#ifndef QTAWESOMEANIMATION_H
+#define QTAWESOMEANIMATION_H
+
+#include <QObject>
+
+class QPainter;
+class QRect;
+class QTimer;
+class QWidget;
+
+///
+/// Basic Animation Support for QtAwesome (Inspired by https://github.com/spyder-ide/qtawesome)
+///
+class QtAwesomeAnimation : public QObject
+{
+Q_OBJECT
+
+public:
+    QtAwesomeAnimation( QWidget* parentWidget, int interval=10, int step=1);
+
+    void setup( QPainter& painter, const QRect& rect );
+
+public slots:
+    void update();
+
+private:
+    QWidget* parentWidgetRef_;
+    QTimer* timer_;
+    int interval_;
+    int step_;
+    float angle_;
+
+};
+
+
+#endif // QTAWESOMEANIMATION_H

QtAwesomeSample/main.cpp

@@ -20,7 +20,13 @@ int main(int argc, char *argv[])
     awesome->initFontAwesome();
 
     // a simple beer button
-    QPushButton* beerButton = new QPushButton( awesome->icon( fa::beer ), "Cheers!" );
+    QPushButton* beerButton = new QPushButton( "Cheers!");
+
+
+    QVariantMap options;
+    options.insert("anim", qVariantFromValue( new QtAwesomeAnimation(beerButton) ) );
+    beerButton->setIcon( awesome->icon( fa::beer, options  ) );
+
     w.setCentralWidget( beerButton );
     w.show();