From 271b3da56d76bad669d14547ca499a64000c8a3c Mon Sep 17 00:00:00 2001
From: Anne Jan Brouwer <brouwer@annejan.com>
Date: Tue, 26 May 2015 03:22:59 +0200
Subject: Added waiting animation widget from
 https://github.com/mojocorp/QProgressIndicator

---
 progressindicator.cpp | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 progressindicator.cpp

(limited to 'progressindicator.cpp')

diff --git a/progressindicator.cpp b/progressindicator.cpp
new file mode 100644
index 00000000..b3835f66
--- /dev/null
+++ b/progressindicator.cpp
@@ -0,0 +1,116 @@
+#include "progressindicator.h"
+
+#include <QPainter>
+
+QProgressIndicator::QProgressIndicator(QWidget* parent)
+    : QWidget(parent),
+      m_angle(0),
+      m_timerId(-1),
+      m_delay(40),
+      m_displayedWhenStopped(false),
+      m_color(Qt::black)
+{
+    setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+    setFocusPolicy(Qt::NoFocus);
+}
+
+bool QProgressIndicator::isAnimated () const
+{
+    return (m_timerId != -1);
+}
+
+void QProgressIndicator::setDisplayedWhenStopped(bool state)
+{
+    m_displayedWhenStopped = state;
+
+    update();
+}
+
+bool QProgressIndicator::isDisplayedWhenStopped() const
+{
+    return m_displayedWhenStopped;
+}
+
+void QProgressIndicator::startAnimation()
+{
+    m_angle = 0;
+
+    if (m_timerId == -1)
+        m_timerId = startTimer(m_delay);
+}
+
+void QProgressIndicator::stopAnimation()
+{
+    if (m_timerId != -1)
+        killTimer(m_timerId);
+
+    m_timerId = -1;
+
+    update();
+}
+
+void QProgressIndicator::setAnimationDelay(int delay)
+{
+    if (m_timerId != -1)
+        killTimer(m_timerId);
+
+    m_delay = delay;
+
+    if (m_timerId != -1)
+        m_timerId = startTimer(m_delay);
+}
+
+void QProgressIndicator::setColor(const QColor & color)
+{
+    m_color = color;
+
+    update();
+}
+
+QSize QProgressIndicator::sizeHint() const
+{
+    return QSize(20,20);
+}
+
+int QProgressIndicator::heightForWidth(int w) const
+{
+    return w;
+}
+
+void QProgressIndicator::timerEvent(QTimerEvent * /*event*/)
+{
+    m_angle = (m_angle+30)%360;
+
+    update();
+}
+
+void QProgressIndicator::paintEvent(QPaintEvent * /*event*/)
+{
+    if (!m_displayedWhenStopped && !isAnimated())
+        return;
+
+    int width = qMin(this->width(), this->height());
+    
+    QPainter p(this);
+    p.setRenderHint(QPainter::Antialiasing);
+    
+    int outerRadius = (width-1)*0.5;
+    int innerRadius = (width-1)*0.5*0.38;
+
+    int capsuleHeight = outerRadius - innerRadius;
+    int capsuleWidth  = (width > 32 ) ? capsuleHeight *.23 : capsuleHeight *.35;
+    int capsuleRadius = capsuleWidth/2;
+
+    for (int i=0; i<12; i++)
+    {
+        QColor color = m_color;
+        color.setAlphaF(1.0f - (i/12.0f));
+        p.setPen(Qt::NoPen);
+        p.setBrush(color);       
+        p.save();
+        p.translate(rect().center());
+        p.rotate(m_angle - i*30.0f);
+        p.drawRoundedRect(-capsuleWidth*0.5, -(innerRadius+capsuleHeight), capsuleWidth, capsuleHeight, capsuleRadius, capsuleRadius);
+        p.restore();
+    }
+}
-- 
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