Add qprogressindicator widget

4 files changed, 424 insertions, 0 deletions

diff --git a/src/3rdparty/QProgressIndicator/LICENSE b/src/3rdparty/QProgressIndicator/LICENSE
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index 000000000..65c5ca88a
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+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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diff --git a/src/3rdparty/QProgressIndicator/QProgressIndicator.cpp b/src/3rdparty/QProgressIndicator/QProgressIndicator.cpp
new file mode 100644
index 000000000..425dc579f
--- /dev/null
+++ b/src/3rdparty/QProgressIndicator/QProgressIndicator.cpp
@@ -0,0 +1,137 @@
+/*
+*
+* This file is part of QProgressIndicator,
+* an open-source recent files menu widget
+*
+* Copyright (C) 2009 - 2010 Morgan Leborgne
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Lesser General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* 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.
+*
+* You should have received a copy of the GNU Lesser General Public License
+* along with QRecentFilesMenu. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+#include "QProgressIndicator.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();
+    }
+}
diff --git a/src/3rdparty/QProgressIndicator/QProgressIndicator.h b/src/3rdparty/QProgressIndicator/QProgressIndicator.h
new file mode 100644
index 000000000..0614da60d
--- /dev/null
+++ b/src/3rdparty/QProgressIndicator/QProgressIndicator.h
@@ -0,0 +1,108 @@
+/*
+*
+* This file is part of QProgressIndicator,
+* an open-source recent files menu widget
+*
+* Copyright (C) 2009 - 2010 Morgan Leborgne
+*
+* This program is free software: you can redistribute it and/or modify
+* it under the terms of the GNU Lesser General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* 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.
+*
+* You should have received a copy of the GNU Lesser General Public License
+* along with QRecentFilesMenu. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+#ifndef QPROGRESSINDICATOR_H
+#define QPROGRESSINDICATOR_H
+
+#include <QWidget>
+#include <QColor>
+
+/*! 
+    \class QProgressIndicator
+    \brief The QProgressIndicator class lets an application display a progress indicator to show that a lengthy task is under way. 
+
+    Progress indicators are indeterminate and do nothing more than spin to show that the application is busy.
+    \sa QProgressBar
+*/
+class QProgressIndicator : public QWidget
+{
+    Q_OBJECT
+    Q_PROPERTY(int delay READ animationDelay WRITE setAnimationDelay)
+    Q_PROPERTY(bool displayedWhenStopped READ isDisplayedWhenStopped WRITE setDisplayedWhenStopped)
+    Q_PROPERTY(QColor color READ color WRITE setColor)
+public:
+    QProgressIndicator(QWidget* parent = 0);
+
+    /*! Returns the delay between animation steps.
+        \return The number of milliseconds between animation steps. By default, the animation delay is set to 40 milliseconds.
+        \sa setAnimationDelay
+     */
+    int animationDelay() const { return m_delay; }
+
+    /*! Returns a Boolean value indicating whether the component is currently animated.
+        \return Animation state.
+        \sa startAnimation stopAnimation
+     */
+    bool isAnimated () const;
+
+    /*! Returns a Boolean value indicating whether the receiver shows itself even when it is not animating.
+        \return Return true if the progress indicator shows itself even when it is not animating. By default, it returns false.
+        \sa setDisplayedWhenStopped
+     */
+    bool isDisplayedWhenStopped() const;
+
+    /*! Returns the color of the component.
+        \sa setColor
+      */
+    const QColor & color() const { return m_color; }
+
+    virtual QSize sizeHint() const;
+    int heightForWidth(int w) const;
+public slots:
+    /*! Starts the spin animation.
+        \sa stopAnimation isAnimated
+     */
+    void startAnimation();
+
+    /*! Stops the spin animation.
+        \sa startAnimation isAnimated
+     */
+    void stopAnimation();
+
+    /*! Sets the delay between animation steps.
+        Setting the \a delay to a value larger than 40 slows the animation, while setting the \a delay to a smaller value speeds it up.
+        \param delay The delay, in milliseconds. 
+        \sa animationDelay 
+     */
+    void setAnimationDelay(int delay);
+
+    /*! Sets whether the component hides itself when it is not animating. 
+       \param state The animation state. Set false to hide the progress indicator when it is not animating; otherwise true.
+       \sa isDisplayedWhenStopped
+     */
+    void setDisplayedWhenStopped(bool state);
+
+    /*! Sets the color of the components to the given color.
+        \sa color
+     */
+    void setColor(const QColor & color);
+protected:
+    virtual void timerEvent(QTimerEvent * event); 
+    virtual void paintEvent(QPaintEvent * event);
+private:
+    int m_angle;
+    int m_timerId;
+    int m_delay;
+    bool m_displayedWhenStopped;
+    QColor m_color;
+};
+
+#endif // QPROGRESSINDICATOR_H
diff --git a/src/3rdparty/QProgressIndicator/README.md b/src/3rdparty/QProgressIndicator/README.md
new file mode 100644
index 000000000..4b34a3553
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+++ b/src/3rdparty/QProgressIndicator/README.md
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+## Description
+
+The QProgressIndicator class lets an application display a progress indicator to show that a lengthy task is under way.
+Will work at any size.
+
+<img src="https://raw.github.com/mojocorp/QProgressIndicator/master/screen-capture-1.png" >
+<img src="https://raw.github.com/mojocorp/QProgressIndicator/master/screen-capture-2.png" >
+
+## Dependency
+Qt 4.4.x.
+
+## License
+
+LGPL