plasma: simplify animations classes

the proxy class Plasma::EasingAnimation is simply redundant, just one
more virtual function call which slows the animations

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>

plasma/CMakeLists.txt

@@ -24,7 +24,6 @@ set(plasma_LIB_SRCS
     abstracttoolbox.cpp
     animator.cpp
     animations/animation.cpp
-    animations/easinganimation.cpp
     animations/fade.cpp
     animations/pixmaptransition.cpp
     animations/pulser.cpp

plasma/animations/animation.cpp

@@ -26,10 +26,9 @@
 namespace Plasma
 {
 
-
 AnimationPrivate::AnimationPrivate()
     : easingCurve(QEasingCurve::Linear),
-      duration(250)
+    duration(250)
 {
 }
 

plasma/animations/animation.h

@@ -79,18 +79,18 @@ public:
      * \ref Animator::create factory).
      *
      */
-    explicit Animation(QObject* parent = 0);
+    explicit Animation(QObject *parent = nullptr);
 
     /**
      * Destructor.
      */
-    ~Animation() = 0;
+    virtual ~Animation();
 
     /**
      * Set the widget on which the animation is to be performed.
      * @param widget The QGraphicsWidget to be animated.
      */
-    void setTargetWidget(QGraphicsWidget* widget);
+    void setTargetWidget(QGraphicsWidget *widget);
 
     /**
      * @return The widget that the animation will be performed upon

plasma/animations/easinganimation.cpp

@@ -1,39 +0,0 @@
-/*
- *   Copyright 2010 Aaron Seigo <aseigo@kde.org>
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU Library General Public License as
- *   published by the Free Software Foundation; either version 2, 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 General Public License for more details
- *
- *   You should have received a copy of the GNU Library General Public
- *   License along with this program; if not, write to the
- *   Free Software Foundation, Inc.,
- *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- */
-
-#include "easinganimation_p.h"
-#include <kdebug.h>
-
-namespace Plasma
-{
-
-EasingAnimation::EasingAnimation(QObject *parent)
-    : Animation(parent)
-{
-}
-
-void EasingAnimation::updateCurrentTime(int currentTime)
-{
-    updateEffectiveTime(easingCurve().valueForProgress(currentTime / qreal(qMax(1, duration()))) * duration());
-}
-
-} // namespace Plasma
-
-#include "moc_easinganimation_p.cpp"
-

plasma/animations/easinganimation_p.h

@@ -1,46 +0,0 @@
-/*
- *   Copyright 2010 Aaron Seigo <aseigo@kde.org>
- *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU Library General Public License as
- *   published by the Free Software Foundation; either version 2, 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 General Public License for more details
- *
- *   You should have received a copy of the GNU Library General Public
- *   License along with this program; if not, write to the
- *   Free Software Foundation, Inc.,
- *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
- */
-
-#ifndef PLASMA_EASINGANIMATION_H
-#define PLASMA_EASINGANIMATION_H
-
-#include "animation.h"
-
-namespace Plasma
-{
-
-
-class EasingAnimation : public Animation
-{
-    Q_OBJECT
-
-public:
-    explicit EasingAnimation(QObject *parent = 0);
-
-protected:
-    virtual void updateEffectiveTime(int currentTime) = 0;
-
-private:
-    void updateCurrentTime(int currentTime);
-};
-
-} // namespace Plasma
-
-#endif // PLASMA_EASINGANIMATION_H
-

plasma/animations/fade.cpp

@@ -18,25 +18,20 @@
  */
 
 #include "fade_p.h"
+#include "kdebug.h"
 
 #include <QRect>
 
-#include <kdebug.h>
-
 namespace Plasma
 {
 
 FadeAnimation::FadeAnimation(QObject *parent)
-    : EasingAnimation(parent),
+    : Animation(parent),
     m_startOpacity(0),
     m_targetOpacity(1)
 {
 }
 
-FadeAnimation::~FadeAnimation()
-{
-}
-
 void FadeAnimation::setStartOpacity(qreal factor)
 {
     m_startOpacity = qBound(qreal(0.0), factor, qreal(1.0));
@@ -71,11 +66,11 @@ void FadeAnimation::updateState(QAbstractAnimation::State newState, QAbstractAni
     }
 }
 
-void FadeAnimation::updateEffectiveTime(int currentTime)
+void FadeAnimation::updateCurrentTime(int currentTime)
 {
     QGraphicsWidget *w = targetWidget();
     if (w) {
-        qreal delta = currentTime / qreal(duration());
+        qreal delta = easingCurve().valueForProgress(qreal(currentTime) / qreal(duration()));
         delta *= m_startOpacity - m_targetOpacity;
         w->setOpacity(m_startOpacity - delta);
     }

plasma/animations/fade_p.h

@@ -24,8 +24,7 @@
 #ifndef PLASMA_ANIMATIONS_FADE_P_H
 #define PLASMA_ANIMATIONS_FADE_P_H
 
-#include <plasma/animations/easinganimation_p.h>
-#include <plasma/plasma_export.h>
+#include "animations/animation.h"
 
 namespace Plasma
 {
@@ -38,7 +37,7 @@ namespace Plasma
  * value to a target value. The range is 0 (full translucent) to 1 (full
  * opaque).
  */
-class FadeAnimation : public EasingAnimation
+class FadeAnimation : public Animation
 {
     Q_OBJECT
     Q_PROPERTY(qreal startOpacity READ startOpacity WRITE setStartOpacity)
@@ -46,10 +45,7 @@ class FadeAnimation : public EasingAnimation
 
 public:
     /** Default constructor */
-    explicit FadeAnimation(QObject *parent = 0);
-
-    /** Destructor */
-    virtual ~FadeAnimation();
+    explicit FadeAnimation(QObject *parent = nullptr);
 
     /**
      * Access start opacity of the target widget.
@@ -59,6 +55,7 @@ public:
      * @return The opacity (range is 0 to 1).
      */
     qreal startOpacity() const;
+
     /**
      * Set the start opacity of the target widget.
      *
@@ -75,6 +72,7 @@ public:
      * @return The opacity (range is 0 to 1).
      */
     qreal targetOpacity() const;
+
     /**
      * Set the final opacity of the target widget.
      *
@@ -85,7 +83,7 @@ public:
 
 protected:
     void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState);
-    void updateEffectiveTime(int currentTime);
+    void updateCurrentTime(int currentTime);
 
 private:
     /** Initial opacity */

plasma/animations/geometry.cpp

@@ -27,7 +27,7 @@ namespace Plasma
 {
 
 GeometryAnimation::GeometryAnimation(QObject *parent)
-    : EasingAnimation(parent),
+    : Animation(parent),
     m_startGeometry(-1, -1, -1, -1)
 {
 }
@@ -70,19 +70,26 @@ void GeometryAnimation::updateState(QAbstractAnimation::State newState, QAbstrac
     }
 }
 
-void GeometryAnimation::updateEffectiveTime(int currentTime)
+void GeometryAnimation::updateCurrentTime(int currentTime)
 {
     QGraphicsWidget *w = targetWidget();
     if (w) {
-        const qreal delta = currentTime / qreal(duration());
+        const qreal delta = easingCurve().valueForProgress(qreal(currentTime) / qreal(duration()));
 
         QRectF newGeo;
-
-        newGeo.moveTopLeft(QPointF(m_startGeometry.left()*(1-delta) + m_targetGeometry.left()*(delta),
-                        m_startGeometry.top()*(1-delta) + m_targetGeometry.top()*(delta)));
+        newGeo.moveTopLeft(
+            QPointF(
+                m_startGeometry.left()*(1-delta) + m_targetGeometry.left()*(delta),
+                m_startGeometry.top()*(1-delta) + m_targetGeometry.top()*(delta)
+            )
+        );
         if (m_startGeometry.size() != m_targetGeometry.size()) {
-            newGeo.setSize(QSizeF(m_startGeometry.width()*(1-delta) + m_targetGeometry.width()*(delta),
-                    m_startGeometry.height()*(1-delta) + m_targetGeometry.height()*(delta)));
+            newGeo.setSize(
+                QSizeF(
+                    m_startGeometry.width()*(1-delta) + m_targetGeometry.width()*(delta),
+                    m_startGeometry.height()*(1-delta) + m_targetGeometry.height()*(delta)
+                )
+            );
         } else {
             newGeo.setSize(m_targetGeometry.size());
         }

plasma/animations/geometry_p.h

@@ -24,8 +24,7 @@
 #ifndef PLASMA_ANIMATIONS_GEOMETRY_P_H
 #define PLASMA_ANIMATIONS_GEOMETRY_P_H
 
-#include <plasma/animations/easinganimation_p.h>
-#include <plasma/plasma_export.h>
+#include "animations/animation.h"
 
 namespace Plasma
 {
@@ -36,7 +35,7 @@ namespace Plasma
  * Use this class when you want to change the geometry of an QGraphicsWidget
  * in an animated way (you should at least set the target geometry).
  */
-class GeometryAnimation : public EasingAnimation
+class GeometryAnimation : public Animation
 {
     Q_OBJECT
     Q_PROPERTY(QRectF startGeometry READ startGeometry WRITE setStartGeometry)
@@ -44,7 +43,7 @@ class GeometryAnimation : public EasingAnimation
 
 public:
     /** Default constructor */
-    explicit GeometryAnimation(QObject *parent = 0);
+    explicit GeometryAnimation(QObject *parent = nullptr);
 
     /**
      * Access the initial geometry of animated widget.
@@ -54,6 +53,7 @@ public:
      * @return Start geometry.
      */
     QRectF startGeometry() const;
+
     /**
      * Set the initial geometry of animated widget.
      *
@@ -80,7 +80,7 @@ public:
 
 protected:
     void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState);
-    void updateEffectiveTime(int currentTime);
+    void updateCurrentTime(int currentTime);
 
 private:
     /** Initial geometry */

plasma/animations/pixmaptransition.cpp

@@ -31,7 +31,7 @@ namespace Plasma
 {
 
 PixmapTransition::PixmapTransition(QObject *parent)
-    : EasingAnimation(parent),
+    : Animation(parent),
     m_cache(false),
     m_dirty(false)
 {
@@ -46,7 +46,7 @@ void PixmapTransition::setStartPixmap(const QPixmap &pixmap)
     m_startPixmap = pixmap;
 
     //this will center the pixmaps if needed
-    updateEffectiveTime(0);
+    updateCurrentTime(0);
 }
 
 QPixmap PixmapTransition::startPixmap() const
@@ -62,7 +62,7 @@ void PixmapTransition::setTargetPixmap(const QPixmap &pixmap)
 
     m_targetPixmap = pixmap;
 
-    updateEffectiveTime(0);
+    updateCurrentTime(0);
 }
 
 void PixmapTransition::setUsesCache(bool cache)
@@ -160,7 +160,7 @@ void PixmapTransition::updateState(QAbstractAnimation::State newState, QAbstract
     m_dirty = true;
 }
 
-void PixmapTransition::updateEffectiveTime(int currentTime)
+void PixmapTransition::updateCurrentTime(int currentTime)
 {
     Q_UNUSED(currentTime)
 

plasma/animations/pixmaptransition_p.h

@@ -25,8 +25,7 @@
 #ifndef PLASMA_ANIMATIONS_PIXMAPTRANSITION_P_H
 #define PLASMA_ANIMATIONS_PIXMAPTRANSITION_P_H
 
-#include <plasma/animations/easinganimation_p.h>
-#include <plasma/plasma_export.h>
+#include "animations/animation.h"
 
 namespace Plasma
 {
@@ -37,7 +36,7 @@ namespace Plasma
  *
  * Effect that paints a transition between two pixmaps
  */
-class PixmapTransition : public EasingAnimation
+class PixmapTransition : public Animation
 {
     Q_OBJECT
     Q_PROPERTY(QPixmap startPixmap READ startPixmap WRITE setStartPixmap)
@@ -46,7 +45,7 @@ class PixmapTransition : public EasingAnimation
     Q_PROPERTY(QPixmap currentPixmap READ currentPixmap)
 
 public:
-    explicit PixmapTransition(QObject *parent = 0);
+    explicit PixmapTransition(QObject *parent = nullptr);
 
     /**
      * @return The first pixmap of the animation
@@ -56,7 +55,7 @@ public:
     /**
      * Set the first pixmap of the animation
      */
-    void setStartPixmap(const QPixmap &);
+    void setStartPixmap(const QPixmap &pixmap);
 
     /**
      * The pixmap the animation will evolve to
@@ -66,7 +65,7 @@ public:
     /**
      * Set the pixmap the animation will evolve to
      */
-    void setTargetPixmap(const QPixmap &);
+    void setTargetPixmap(const QPixmap &pixmap);
 
     /**
      * @return the current pixmap
@@ -87,7 +86,7 @@ public:
 
 protected:
     void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState);
-    void updateEffectiveTime(int currentTime);
+    void updateCurrentTime(int currentTime);
 
 private:
     QPixmap alignedTargetPixmap() const;

plasma/animations/pulser.cpp

@@ -20,8 +20,6 @@
 
 #include <QEvent>
 #include <QGraphicsWidget>
-#include <QParallelAnimationGroup>
-#include <QPropertyAnimation>
 #include <QWeakPointer>
 
 #include <kdebug.h>
@@ -30,7 +28,7 @@ namespace Plasma
 {
 
 PulseAnimation::PulseAnimation(QObject *parent)
-    : EasingAnimation(parent),
+    : Animation(parent),
     m_zvalue(0),
     m_scale(0),
     m_opacity(0),
@@ -111,16 +109,17 @@ void PulseAnimation::updateState(QAbstractAnimation::State newState, QAbstractAn
     }
 }
 
-void PulseAnimation::updateEffectiveTime(int currentTime)
+void PulseAnimation::updateCurrentTime(int currentTime)
 {
     if (m_under.data()) {
-        qreal delta = currentTime / qreal(duration());
+        const qreal progress = easingCurve().valueForProgress(qreal(currentTime) / qreal(duration()));
+        qreal delta = progress;
 
         m_under.data()->setScale(delta);
         delta = (1 - m_endScale) * delta;
         m_under.data()->setScale(1 - delta);
 
-        delta = currentTime / qreal(duration());
+        delta = progress;
         if (direction() == Forward) {
             m_under.data()->setOpacity(1.0 - delta);
         } else if (direction() == Backward) {

plasma/animations/pulser_p.h

@@ -23,8 +23,7 @@
 #ifndef PLASMA_ANIMATIONS_PULSER_P_H
 #define PLASMA_ANIMATIONS_PULSER_P_H
 
-#include <plasma/animations/easinganimation_p.h>
-#include <plasma/plasma_export.h>
+#include "animations/animation.h"
 
 namespace Plasma
 {
@@ -38,14 +37,14 @@ class WidgetSnapShot;
  * Effect that pulses a shadow copy of any QGraphicsWidget making
  * it more translucent and bigger along the time until it vanishes.
  */
-class PulseAnimation : public EasingAnimation
+class PulseAnimation : public Animation
 {
     Q_OBJECT
     Q_PROPERTY(qreal targetScale READ targetScale WRITE setTargetScale)
 
 public:
     /** Default Constructor */
-    explicit PulseAnimation(QObject *parent = 0);
+    explicit PulseAnimation(QObject *parent = nullptr);
 
     /** Destructor */
     ~PulseAnimation();
@@ -75,7 +74,7 @@ public:
 
 protected:
     void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState);
-    void updateEffectiveTime(int currentTime);
+    void updateCurrentTime(int currentTime);
     void setCopy();
 
 private:

plasma/animations/slide.cpp

@@ -18,15 +18,15 @@
  */
 
 #include "slide_p.h"
+#include "kdebug.h"
 
-#include <QtCore/qpoint.h>
-#include <kdebug.h>
+#include <QPoint>
 
 namespace Plasma
 {
 
 SlideAnimation::SlideAnimation(QObject *parent, MovementDirection direction, qreal distance)
-    : EasingAnimation(parent)
+    : Animation(parent)
 {
     setMovementDirection(direction);
     setDistance(distance);
@@ -63,11 +63,11 @@ Animation::MovementDirection SlideAnimation::movementDirection() const
     return m_animDirection;
 }
 
-void SlideAnimation::updateEffectiveTime(int currentTime)
+void SlideAnimation::updateCurrentTime(int currentTime)
 {
     QGraphicsWidget *w = targetWidget();
     if (w && state() == QAbstractAnimation::Running) {
-        const qreal delta = currentTime / qreal(duration());
+        const qreal delta = easingCurve().valueForProgress(qreal(currentTime) / qreal(duration()));
         w->setPos(m_startPos * (1-delta) + (m_targetPos * delta));
     }
 }

plasma/animations/slide_p.h

@@ -24,9 +24,7 @@
 #ifndef PLASMA_ANIMATIONS_SLIDE_P_H
 #define PLASMA_ANIMATIONS_SLIDE_P_H
 
-#include "plasma/animations/easinganimation_p.h"
-#include "plasma/plasma_export.h"
-#include "plasma/plasma.h"
+#include "animations/animation.h"
 
 namespace Plasma
 {
@@ -38,7 +36,7 @@ namespace Plasma
  * Effect that moves the object a specific distance in a given direction. The
  * object is optionally made invisible at the beginning or at the end.
  */
-class SlideAnimation : public EasingAnimation
+class SlideAnimation : public Animation
 {
     Q_OBJECT
     Q_PROPERTY(qreal distance READ distance WRITE setDistance)
@@ -46,7 +44,7 @@ class SlideAnimation : public EasingAnimation
     Q_PROPERTY(QPointF distancePointF READ distancePointF WRITE setDistancePointF)
 
 public:
-    explicit SlideAnimation(QObject *parent = 0, MovementDirection direction = MoveUp, qreal distance = 0);
+    explicit SlideAnimation(QObject *parent = nullptr, MovementDirection direction = MoveUp, qreal distance = 0);
 
     /**
      * Set the animation distance
@@ -74,7 +72,7 @@ public:
     Animation::MovementDirection movementDirection() const;
 
 protected:
-    void updateEffectiveTime(int currentTime);
+    void updateCurrentTime(int currentTime);
     void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState);
 
 private:

plasma/animations/zoom.cpp

@@ -18,15 +18,14 @@
  */
 
 #include "zoom_p.h"
-
-#include <kdebug.h>
+#include "kdebug.h"
 
 namespace Plasma
 {
 
 ZoomAnimation::ZoomAnimation(QObject *parent)
-    : EasingAnimation(parent),
-      m_zoom(0)
+    : Animation(parent),
+    m_zoom(0)
 {
 }
 
@@ -55,11 +54,11 @@ void ZoomAnimation::updateState(QAbstractAnimation::State newState, QAbstractAni
     }
 }
 
-void ZoomAnimation::updateEffectiveTime(int currentTime)
+void ZoomAnimation::updateCurrentTime(int currentTime)
 {
     QGraphicsWidget *w = targetWidget();
     if (w) {
-        qreal delta = currentTime / qreal(duration());
+        qreal delta = easingCurve().valueForProgress(qreal(currentTime) / qreal(duration()));
         if (m_zoom != 1) {
             delta = (1 - m_zoom) * delta;
             w->setScale(1 - delta);

plasma/animations/zoom_p.h

@@ -24,8 +24,7 @@
 #ifndef PLASMA_ANIMATIONS_ZOOM_P_H
 #define PLASMA_ANIMATIONS_ZOOM_P_H
 
-#include <plasma/animations/easinganimation_p.h>
-#include <plasma/plasma_export.h>
+#include "animations/animation.h"
 
 namespace Plasma
 {
@@ -35,20 +34,20 @@ namespace Plasma
  * @short Zoom Animation
  *
  */
-class ZoomAnimation : public EasingAnimation
+class ZoomAnimation : public Animation
 {
     Q_OBJECT
     Q_PROPERTY(qreal zoom READ zoom WRITE setZoom)
 
 public:
-    explicit ZoomAnimation(QObject *parent = 0);
+    explicit ZoomAnimation(QObject *parent = nullptr);
 
     qreal zoom() const;
     void setZoom(qreal);
 
 protected:
     void updateState(QAbstractAnimation::State newState, QAbstractAnimation::State oldState);
-    void updateEffectiveTime(int currentTime);
+    void updateCurrentTime(int currentTime);
 
 private:
     qreal m_zoom;