experiment with focus animation

components/flatbutton.cpp

@@ -134,6 +134,13 @@ void FlatButton::paintEvent(QPaintEvent *event)
 
     painter.drawControl(QStyle::CE_PushButtonLabel, option);
 
+    //if (hasFocus() && !underMouse()) {
+    //    QPen pen;
+    //    pen.setWidth(4);
+    //    painter.setPen(pen);
+    //    painter.drawRect(rect());
+    //}
+
 #ifdef DEBUG_LAYOUT
     QPainter debug(this);
     QPen pen;

components/flatbutton_internal.cpp

@@ -10,7 +10,8 @@ FlatButtonDelegate::FlatButtonDelegate(FlatButton *parent)
     : QStateMachine(parent),
       button(parent),
       _normalState(new QState(this)),
-      _focusedState(new QState(this)),
+      _hoveredState(new QState(this)),
+      _focusedState2(new QState(this)),
       _pressedState(new QState(this))
 {
     setInitialState(_normalState);
@@ -23,7 +24,7 @@ FlatButtonDelegate::FlatButtonDelegate(FlatButton *parent)
     //
 
     transition = new QEventTransition(button, QEvent::Enter);
-    transition->setTargetState(_focusedState);
+    transition->setTargetState(_hoveredState);
 
     animation = new QPropertyAnimation(this, "backgroundOpacity");
     animation->setDuration(140);
@@ -32,13 +33,33 @@ FlatButtonDelegate::FlatButtonDelegate(FlatButton *parent)
 
     //
 
+    //transition = new QEventTransition(button, QEvent::FocusIn);
+    //transition->setTargetState(_focusedState2);
+
+    ////animation = new QPropertyAnimation(this, "backgroundOpacity");
+    ////animation->setDuration(140);
+    ////transition->addAnimation(animation);
+    //_normalState->addTransition(transition);
+
+    //
+
     transition = new QEventTransition(button, QEvent::Leave);
     transition->setTargetState(_normalState);
 
     animation = new QPropertyAnimation(this, "backgroundOpacity");
     animation->setDuration(140);
     transition->addAnimation(animation);
-    _focusedState->addTransition(transition);
+    _focusedState2->addTransition(transition);
+
+    //
+
+    transition = new QEventTransition(button, QEvent::Leave);
+    transition->setTargetState(_normalState);
+
+    animation = new QPropertyAnimation(this, "backgroundOpacity");
+    animation->setDuration(140);
+    transition->addAnimation(animation);
+    _hoveredState->addTransition(transition);
 
     //
 
@@ -48,12 +69,12 @@ FlatButtonDelegate::FlatButtonDelegate(FlatButton *parent)
     animation = new QPropertyAnimation(this, "backgroundOpacity");
     animation->setDuration(140);
     transition->addAnimation(animation);
-    _focusedState->addTransition(transition);
+    _hoveredState->addTransition(transition);
 
     //
 
     transition = new QEventTransition(button, QEvent::MouseButtonRelease);
-    transition->setTargetState(_focusedState);
+    transition->setTargetState(_focusedState2);
 
     animation = new QPropertyAnimation(this, "backgroundOpacity");
     animation->setDuration(500);
@@ -99,8 +120,11 @@ void FlatButtonDelegate::assignProperties()
     _normalState->assignProperty(this, "backgroundOpacity", 0);
     _normalState->assignProperty(this, "backgroundColor", textColor);
 
-    _focusedState->assignProperty(this, "backgroundOpacity", 0.15);
+    _hoveredState->assignProperty(this, "backgroundOpacity", 0.15);
-    _focusedState->assignProperty(this, "backgroundColor", textColor);
+    _hoveredState->assignProperty(this, "backgroundColor", textColor);
+
+    _focusedState2->assignProperty(this, "backgroundOpacity", 0.15);
+    _focusedState2->assignProperty(this, "backgroundColor", textColor);
 
     _pressedState->assignProperty(this, "backgroundOpacity", 0.15);
     _pressedState->assignProperty(this, "backgroundColor", textColor);

components/flatbutton_internal.h

@@ -30,7 +30,8 @@ private:
 
     FlatButton *const  button;
     QState     *const _normalState;
-    QState     *const _focusedState;
+    QState     *const _hoveredState;
+    QState     *const _focusedState2;
     QState     *const _pressedState;
     qreal             _backgroundOpacity;
     QColor            _backgroundColor;

components/raisedbutton.cpp

@@ -89,6 +89,8 @@ RaisedButton::RaisedButton(QWidget *parent)
     Q_D(RaisedButton);
 
     d->init();
+
+    setMinimumHeight(42);
 }
 
 RaisedButton::~RaisedButton()