409 lines
13 KiB
C++
409 lines
13 KiB
C++
#include "qtmaterialslider_internal.h"
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#include <QState>
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#include <QAbstractTransition>
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#include <QSignalTransition>
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#include <QEventTransition>
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#include <QPropertyAnimation>
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#include <QPainter>
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#include "qtmaterialslider.h"
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#include "lib/qtmaterialstyle.h"
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#include "lib/qtmaterialstatetransition.h"
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/*!
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* \class QtMaterialSliderStateMachine
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* \internal
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*/
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QtMaterialSliderStateMachine::QtMaterialSliderStateMachine(
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QtMaterialSlider *slider,
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QtMaterialSliderThumb *thumb,
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QtMaterialSliderTrack *track)
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: QStateMachine(slider),
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m_slider(slider),
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m_thumb(thumb),
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m_track(track),
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m_topState(new QState(QState::ParallelStates)),
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m_fstState(new QState(m_topState)),
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m_sndState(new QState(m_topState)),
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m_inactiveState(new QState(m_fstState)),
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m_focusState(new QState(m_fstState)),
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m_slidingState(new QState(m_fstState)),
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m_pulseOutState(new QState(m_focusState)),
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m_pulseInState(new QState(m_focusState)),
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m_minState(new QState(m_sndState)),
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m_normalState(new QState(m_sndState))
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{
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addState(m_topState);
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setInitialState(m_topState);
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m_fstState->setInitialState(m_inactiveState);
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m_focusState->setInitialState(m_pulseOutState);
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m_inactiveState->assignProperty(thumb, "haloSize", 0);
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m_slidingState->assignProperty(thumb, "haloSize", 0);
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m_pulseOutState->assignProperty(thumb, "haloSize", 35);
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m_pulseInState->assignProperty(thumb, "haloSize", 28);
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m_inactiveState->assignProperty(thumb, "diameter", 11);
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m_focusState->assignProperty(thumb, "diameter", 11);
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m_slidingState->assignProperty(thumb, "diameter", 17);
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QAbstractTransition *transition;
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QtMaterialStateTransition *customTransition;
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QPropertyAnimation *animation;
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// Show halo on mouse enter
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customTransition = new QtMaterialStateTransition(SliderNoFocusMouseEnter);
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customTransition->setTargetState(m_focusState);
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animation = new QPropertyAnimation(thumb, "haloSize", this);
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animation->setEasingCurve(QEasingCurve::InOutSine);
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customTransition->addAnimation(animation);
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customTransition->addAnimation(new QPropertyAnimation(track, "fillColor", this));
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m_inactiveState->addTransition(customTransition);
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// Show halo on focus in
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transition = new QEventTransition(slider, QEvent::FocusIn);
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transition->setTargetState(m_focusState);
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animation = new QPropertyAnimation(thumb, "haloSize", this);
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animation->setEasingCurve(QEasingCurve::InOutSine);
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transition->addAnimation(animation);
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transition->addAnimation(new QPropertyAnimation(track, "fillColor", this));
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m_inactiveState->addTransition(transition);
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// Hide halo on focus out
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transition = new QEventTransition(slider, QEvent::FocusOut);
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transition->setTargetState(m_inactiveState);
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animation = new QPropertyAnimation(thumb, "haloSize", this);
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animation->setEasingCurve(QEasingCurve::InOutSine);
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transition->addAnimation(animation);
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transition->addAnimation(new QPropertyAnimation(track, "fillColor", this));
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m_focusState->addTransition(transition);
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// Hide halo on mouse leave, except if widget has focus
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customTransition = new QtMaterialStateTransition(SliderNoFocusMouseLeave);
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customTransition->setTargetState(m_inactiveState);
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animation = new QPropertyAnimation(thumb, "haloSize", this);
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animation->setEasingCurve(QEasingCurve::InOutSine);
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customTransition->addAnimation(animation);
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customTransition->addAnimation(new QPropertyAnimation(track, "fillColor", this));
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m_focusState->addTransition(customTransition);
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// Pulse in
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transition = new QSignalTransition(m_pulseOutState, SIGNAL(propertiesAssigned()));
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transition->setTargetState(m_pulseInState);
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animation = new QPropertyAnimation(thumb, "haloSize", this);
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animation->setEasingCurve(QEasingCurve::InOutSine);
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animation->setDuration(1000);
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transition->addAnimation(animation);
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m_pulseOutState->addTransition(transition);
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// Pulse out
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transition = new QSignalTransition(m_pulseInState, SIGNAL(propertiesAssigned()));
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transition->setTargetState(m_pulseOutState);
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animation = new QPropertyAnimation(thumb, "haloSize", this);
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animation->setEasingCurve(QEasingCurve::InOutSine);
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animation->setDuration(1000);
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transition->addAnimation(animation);
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m_pulseInState->addTransition(transition);
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// Slider pressed
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transition = new QSignalTransition(slider, SIGNAL(sliderPressed()));
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transition->setTargetState(m_slidingState);
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animation = new QPropertyAnimation(thumb, "diameter", this);
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animation->setDuration(70);
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transition->addAnimation(animation);
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animation = new QPropertyAnimation(thumb, "haloSize", this);
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animation->setEasingCurve(QEasingCurve::InOutSine);
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transition->addAnimation(animation);
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m_focusState->addTransition(transition);
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// Slider released
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transition = new QSignalTransition(slider, SIGNAL(sliderReleased()));
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transition->setTargetState(m_focusState);
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animation = new QPropertyAnimation(thumb, "diameter", this);
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animation->setDuration(70);
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transition->addAnimation(animation);
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animation = new QPropertyAnimation(thumb, "haloSize", this);
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animation->setEasingCurve(QEasingCurve::InOutSine);
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transition->addAnimation(animation);
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m_slidingState->addTransition(transition);
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// Min. value transitions
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m_minState->assignProperty(thumb, "borderWidth", 2);
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m_normalState->assignProperty(thumb, "borderWidth", 0);
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m_sndState->setInitialState(m_minState);
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customTransition = new QtMaterialStateTransition(SliderChangedFromMinimum);
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customTransition->setTargetState(m_normalState);
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animation = new QPropertyAnimation(thumb, "fillColor", this);
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animation->setDuration(200);
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customTransition->addAnimation(animation);
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animation = new QPropertyAnimation(thumb, "haloColor", this);
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animation->setDuration(300);
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customTransition->addAnimation(animation);
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animation = new QPropertyAnimation(thumb, "borderColor", this);
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animation->setDuration(200);
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customTransition->addAnimation(animation);
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animation = new QPropertyAnimation(thumb, "borderWidth", this);
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animation->setDuration(200);
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customTransition->addAnimation(animation);
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m_minState->addTransition(customTransition);
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customTransition = new QtMaterialStateTransition(SliderChangedToMinimum);
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customTransition->setTargetState(m_minState);
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animation = new QPropertyAnimation(thumb, "fillColor", this);
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animation->setDuration(200);
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customTransition->addAnimation(animation);
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animation = new QPropertyAnimation(thumb, "haloColor", this);
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animation->setDuration(300);
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customTransition->addAnimation(animation);
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animation = new QPropertyAnimation(thumb, "borderColor", this);
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animation->setDuration(200);
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customTransition->addAnimation(animation);
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animation = new QPropertyAnimation(thumb, "borderWidth", this);
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animation->setDuration(200);
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customTransition->addAnimation(animation);
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m_normalState->addTransition(customTransition);
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setupProperties();
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}
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QtMaterialSliderStateMachine::~QtMaterialSliderStateMachine()
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{
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}
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void QtMaterialSliderStateMachine::setupProperties()
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{
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QColor trackColor = m_slider->trackColor();
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QColor thumbColor = m_slider->thumbColor();
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m_inactiveState->assignProperty(m_track, "fillColor", trackColor.lighter(130));
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m_slidingState->assignProperty(m_track, "fillColor", trackColor);
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m_focusState->assignProperty(m_track, "fillColor", trackColor);
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QColor holeColor = m_slider->palette().color(QPalette::Base);
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if (m_slider->parentWidget()) {
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holeColor = m_slider->parentWidget()->palette().color(m_slider->backgroundRole());
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}
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m_minState->assignProperty(m_thumb, "fillColor", holeColor);
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m_minState->assignProperty(m_thumb, "haloColor", trackColor);
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m_minState->assignProperty(m_thumb, "borderColor", trackColor);
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m_normalState->assignProperty(m_thumb, "fillColor", thumbColor);
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m_normalState->assignProperty(m_thumb, "haloColor", thumbColor);
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m_normalState->assignProperty(m_thumb, "borderColor", thumbColor);
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m_slider->update();
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}
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/*!
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* \class QtMaterialSliderThumb
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* \internal
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*/
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QtMaterialSliderThumb::QtMaterialSliderThumb(QtMaterialSlider *slider)
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: QtMaterialOverlayWidget(slider->parentWidget()),
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m_slider(slider),
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m_diameter(11),
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m_borderWidth(2),
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m_haloSize(0),
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m_offset(0)
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{
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slider->installEventFilter(this);
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setAttribute(Qt::WA_TransparentForMouseEvents, true);
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}
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QtMaterialSliderThumb::~QtMaterialSliderThumb()
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{
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}
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bool QtMaterialSliderThumb::eventFilter(QObject *obj, QEvent *event)
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{
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if (QEvent::ParentChange == event->type()) {
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setParent(m_slider->parentWidget());
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}
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return QtMaterialOverlayWidget::eventFilter(obj, event);
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}
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void QtMaterialSliderThumb::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event)
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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// Halo
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QBrush brush;
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brush.setStyle(Qt::SolidPattern);
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brush.setColor(m_haloColor);
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painter.setBrush(brush);
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painter.setPen(Qt::NoPen);
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QPointF disp = Qt::Horizontal == m_slider->orientation()
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? QPointF(QT_MATERIAL_SLIDER_MARGIN + m_offset, m_slider->height()/2)
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: QPointF(m_slider->width()/2, QT_MATERIAL_SLIDER_MARGIN + m_offset);
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QRectF halo((m_slider->pos() - QPointF(m_haloSize, m_haloSize)/2) + disp,
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QSizeF(m_haloSize, m_haloSize));
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painter.setOpacity(0.15);
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painter.drawEllipse(halo);
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// Knob
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const bool isMin = m_slider->value() == m_slider->minimum();
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brush.setColor(m_slider->isEnabled()
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? m_fillColor
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: m_slider->disabledColor());
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painter.setBrush(!m_slider->isEnabled() && isMin
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? Qt::NoBrush
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: brush);
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if (m_slider->isEnabled() || isMin) {
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QPen pen;
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pen.setColor(m_borderColor);
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pen.setWidthF((isMin && !m_slider->isEnabled()) ? 1.7 : m_borderWidth);
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painter.setPen(pen);
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} else {
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painter.setPen(Qt::NoPen);
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}
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QRectF geometry = Qt::Horizontal == m_slider->orientation()
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? QRectF(m_offset, m_slider->height()/2 - QT_MATERIAL_SLIDER_MARGIN,
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QT_MATERIAL_SLIDER_MARGIN*2, QT_MATERIAL_SLIDER_MARGIN*2).translated(m_slider->pos())
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: QRectF(m_slider->width()/2 - QT_MATERIAL_SLIDER_MARGIN, m_offset,
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QT_MATERIAL_SLIDER_MARGIN*2, QT_MATERIAL_SLIDER_MARGIN*2).translated(m_slider->pos());
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qreal s = m_slider->isEnabled() ? m_diameter : 7;
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QRectF thumb(0, 0, s, s);
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thumb.moveCenter(geometry.center());
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painter.setOpacity(1);
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painter.drawEllipse(thumb);
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}
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/*!
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* \class QtMaterialSliderTrack
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* \internal
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*/
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QtMaterialSliderTrack::QtMaterialSliderTrack(QtMaterialSliderThumb *thumb, QtMaterialSlider *slider)
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: QtMaterialOverlayWidget(slider->parentWidget()),
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m_slider(slider),
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m_thumb(thumb),
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m_trackWidth(2)
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{
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slider->installEventFilter(this);
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setAttribute(Qt::WA_TransparentForMouseEvents, true);
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connect(slider, SIGNAL(sliderMoved(int)), this, SLOT(update()));
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}
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QtMaterialSliderTrack::~QtMaterialSliderTrack()
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{
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}
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bool QtMaterialSliderTrack::eventFilter(QObject *obj, QEvent *event)
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{
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if (QEvent::ParentChange == event->type()) {
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setParent(m_slider->parentWidget());
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}
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return QtMaterialOverlayWidget::eventFilter(obj, event);
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}
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void QtMaterialSliderTrack::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event)
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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QBrush fg;
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fg.setStyle(Qt::SolidPattern);
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fg.setColor(m_slider->isEnabled() ? m_slider->thumbColor()
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: m_slider->disabledColor());
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QBrush bg;
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bg.setStyle(Qt::SolidPattern);
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bg.setColor(m_slider->isEnabled() ? m_fillColor
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: m_slider->disabledColor());
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qreal offset = m_thumb->offset();
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if (Qt::Horizontal == m_slider->orientation()) {
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painter.translate(m_slider->x() + QT_MATERIAL_SLIDER_MARGIN,
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m_slider->y() + m_slider->height()/2
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- static_cast<qreal>(m_trackWidth)/2);
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} else {
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painter.translate(m_slider->x() + m_slider->width()/2
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- static_cast<qreal>(m_trackWidth)/2,
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m_slider->y() + QT_MATERIAL_SLIDER_MARGIN);
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}
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QRectF geometry = Qt::Horizontal == m_slider->orientation()
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? QRectF(0, 0, m_slider->width() - QT_MATERIAL_SLIDER_MARGIN*2, m_trackWidth)
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: QRectF(0, 0, m_trackWidth, m_slider->height() - QT_MATERIAL_SLIDER_MARGIN*2);
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QRectF bgRect;
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QRectF fgRect;
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if (Qt::Horizontal == m_slider->orientation()) {
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fgRect = QRectF(0, 0, offset, m_trackWidth);
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bgRect = QRectF(offset, 0, m_slider->width(), m_trackWidth).intersected(geometry);
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} else {
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fgRect = QRectF(0, 0, m_trackWidth, offset);
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bgRect = QRectF(0, offset, m_trackWidth, m_slider->height()).intersected(geometry);
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}
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if (!m_slider->isEnabled()) {
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fgRect = fgRect.width() < 9 ? QRectF() : fgRect.adjusted(0, 0, -6, 0);
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bgRect = bgRect.width() < 9 ? QRectF() : bgRect.adjusted(6, 0, 0, 0);
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}
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if (m_slider->invertedAppearance()) {
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qSwap(bgRect, fgRect);
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}
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painter.fillRect(bgRect, bg);
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painter.fillRect(fgRect, fg);
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}
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