refactor: opacity helper

PineapplePictures.pro

@@ -31,6 +31,7 @@ SOURCES += \
     bottombuttongroup.cpp \
     graphicsscene.cpp \
     navigatorview.cpp \
+    opacityhelper.cpp \
     toolbutton.cpp
 
 HEADERS += \
@@ -39,6 +40,7 @@ HEADERS += \
     bottombuttongroup.h \
     graphicsscene.h \
     navigatorview.h \
+    opacityhelper.h \
     toolbutton.h
 
 FORMS +=

bottombuttongroup.cpp

@@ -1,5 +1,7 @@
 #include "bottombuttongroup.h"
 
+#include "opacityhelper.h"
+
 #include <functional>
 
 #include <QPushButton>
@@ -8,6 +10,7 @@
 
 BottomButtonGroup::BottomButtonGroup(QWidget *parent)
     : QGroupBox (parent)
+    , m_opacityHelper(new OpacityHelper(this))
 {
     QHBoxLayout * mainLayout = new QHBoxLayout(this);
     mainLayout->setSizeConstraint(QLayout::SetFixedSize);
@@ -53,6 +56,11 @@ BottomButtonGroup::BottomButtonGroup(QWidget *parent)
     }));
 }
 
+void BottomButtonGroup::setOpacity(qreal opacity, bool animated)
+{
+    m_opacityHelper->setOpacity(opacity, animated);
+}
+
 void BottomButtonGroup::addButton(QAbstractButton *button)
 {
     layout()->addWidget(button);

bottombuttongroup.h

@@ -4,12 +4,14 @@
 #include <QAbstractButton>
 #include <QGroupBox>
 
+class OpacityHelper;
 class BottomButtonGroup : public QGroupBox
 {
     Q_OBJECT
 public:
     explicit BottomButtonGroup(QWidget *parent = nullptr);
 
+    void setOpacity(qreal opacity, bool animated = true);
     void addButton(QAbstractButton *button);
 
 signals:
@@ -19,6 +21,9 @@ signals:
     void zoomOutBtnClicked();
     void toggleCheckerboardBtnClicked();
     void rotateRightBtnClicked();
+
+private:
+    OpacityHelper * m_opacityHelper;
 };
 
 #endif // BOTTOMBUTTONGROUP_H

mainwindow.cpp

@@ -13,7 +13,6 @@
 #include <QApplication>
 #include <QStyle>
 #include <QScreen>
-#include <QGraphicsOpacityEffect>
 #include <QMenu>
 
 #ifdef _WIN32
@@ -97,17 +96,9 @@ MainWindow::MainWindow(QWidget *parent) :
         m_gv->setVisible(false);
     });
 
-    m_btnGrpEffect = new QGraphicsOpacityEffect(this);
-    m_bribViewEffect = new QGraphicsOpacityEffect(this);
-    m_bottomButtonGroup->setGraphicsEffect(m_btnGrpEffect);
-    m_gv->setGraphicsEffect(m_bribViewEffect);
-    m_btnGrpOpacityAnimation = new QPropertyAnimation(m_btnGrpEffect, "opacity");
-    m_btnGrpOpacityAnimation->setDuration(300);
-    m_bribViewOpacityAnimation = new QPropertyAnimation(m_bribViewEffect, "opacity");
-    m_bribViewOpacityAnimation->setDuration(300);
-
-    m_btnGrpEffect->setOpacity(0);
-    m_bribViewEffect->setOpacity(0);
+    m_bottomButtonGroup->setOpacity(0, false);
+    m_gv->setOpacity(0, false);
+    m_closeButton->setOpacity(0, false);
 
     centerWindow();
 }
@@ -159,34 +150,20 @@ void MainWindow::showEvent(QShowEvent *event)
 
 void MainWindow::enterEvent(QEvent *event)
 {
-    m_btnGrpOpacityAnimation->stop();
-    m_btnGrpOpacityAnimation->setStartValue(m_btnGrpEffect->opacity());
-    m_btnGrpOpacityAnimation->setEndValue(1);
-    m_btnGrpOpacityAnimation->start();
+    m_bottomButtonGroup->setOpacity(1);
+    m_gv->setOpacity(1);
 
-    m_bribViewOpacityAnimation->stop();
-    m_bribViewOpacityAnimation->setStartValue(m_bribViewEffect->opacity());
-    m_bribViewOpacityAnimation->setEndValue(1);
-    m_bribViewOpacityAnimation->start();
-
-    m_closeButton->setIconOpacity(1);
+    m_closeButton->setOpacity(1);
 
     return QMainWindow::enterEvent(event);
 }
 
 void MainWindow::leaveEvent(QEvent *event)
 {
-    m_btnGrpOpacityAnimation->stop();
-    m_btnGrpOpacityAnimation->setStartValue(m_btnGrpEffect->opacity());
-    m_btnGrpOpacityAnimation->setEndValue(0);
-    m_btnGrpOpacityAnimation->start();
+    m_bottomButtonGroup->setOpacity(0);
+    m_gv->setOpacity(0);
 
-    m_bribViewOpacityAnimation->stop();
-    m_bribViewOpacityAnimation->setStartValue(m_bribViewEffect->opacity());
-    m_bribViewOpacityAnimation->setEndValue(0);
-    m_bribViewOpacityAnimation->start();
-
-    m_closeButton->setIconOpacity(0);
+    m_closeButton->setOpacity(0);
 
     return QMainWindow::leaveEvent(event);
 }
@@ -274,7 +251,7 @@ bool MainWindow::nativeEvent(const QByteArray &eventType, void *message, long *r
 #ifdef _WIN32
     // https://stackoverflow.com/questions/43505580/qt-windows-resizable-frameless-window
     // Too lazy to do this now.. just stackoverflow it and did a copy and paste..
-    Q_UNUSED(eventType);
+    Q_UNUSED(eventType)
     MSG* msg = static_cast<MSG*>(message);
 
     if (msg->message == WM_NCHITTEST) {

mainwindow.h

@@ -49,10 +49,6 @@ protected slots:
 
 private:
     QPoint m_oldMousePos;
-    QGraphicsOpacityEffect *m_btnGrpEffect;
-    QGraphicsOpacityEffect *m_bribViewEffect;
-    QPropertyAnimation *m_btnGrpOpacityAnimation;
-    QPropertyAnimation *m_bribViewOpacityAnimation;
     QPropertyAnimation *m_fadeOutAnimation;
     QPropertyAnimation *m_floatUpAnimation;
     QParallelAnimationGroup *m_exitAnimationGroup;

navigatorview.cpp

@@ -1,6 +1,7 @@
 #include "navigatorview.h"
 
 #include "graphicsview.h"
+#include "opacityhelper.h"
 
 #include <QMouseEvent>
 #include <QDebug>
@@ -8,6 +9,7 @@
 NavigatorView::NavigatorView(QWidget *parent)
     : QGraphicsView (parent)
     , m_viewportRegion(this->rect())
+    , m_opacityHelper(new OpacityHelper(this))
 {
     setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
@@ -21,6 +23,11 @@ void NavigatorView::setMainView(GraphicsView *mainView)
     m_mainView = mainView;
 }
 
+void NavigatorView::setOpacity(qreal opacity, bool animated)
+{
+    m_opacityHelper->setOpacity(opacity, animated);
+}
+
 void NavigatorView::updateMainViewportRegion()
 {
     if (m_mainView != nullptr) {

navigatorview.h

@@ -3,6 +3,7 @@
 
 #include <QGraphicsView>
 
+class OpacityHelper;
 class GraphicsView;
 class NavigatorView : public QGraphicsView
 {
@@ -11,6 +12,7 @@ public:
     NavigatorView(QWidget *parent = nullptr);
 
     void setMainView(GraphicsView *mainView);
+    void setOpacity(qreal opacity, bool animated = true);
 
 public slots:
     void updateMainViewportRegion();
@@ -26,6 +28,7 @@ private:
     bool m_mouseDown = false;
     QPolygon m_viewportRegion;
     QGraphicsView *m_mainView = nullptr;
+    OpacityHelper *m_opacityHelper = nullptr;
 };
 
 #endif // NAVIGATORVIEW_H

opacityhelper.cpp

@@ -0,0 +1,27 @@
+#include "opacityhelper.h"
+
+#include <QGraphicsOpacityEffect>
+#include <QPropertyAnimation>
+
+OpacityHelper::OpacityHelper(QWidget *parent)
+    : QObject(parent)
+    , m_opacityFx(new QGraphicsOpacityEffect(parent))
+    , m_opacityAnimation(new QPropertyAnimation(m_opacityFx, "opacity"))
+{
+    parent->setGraphicsEffect(m_opacityFx);
+
+    m_opacityAnimation->setDuration(300);
+}
+
+void OpacityHelper::setOpacity(qreal opacity, bool animated)
+{
+    if (!animated) {
+        m_opacityFx->setOpacity(opacity);
+        return;
+    }
+
+    m_opacityAnimation->stop();
+    m_opacityAnimation->setStartValue(m_opacityFx->opacity());
+    m_opacityAnimation->setEndValue(opacity);
+    m_opacityAnimation->start();
+}

opacityhelper.h

@@ -0,0 +1,23 @@
+#ifndef OPACITYHELPER_H
+#define OPACITYHELPER_H
+
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+class QGraphicsOpacityEffect;
+class QPropertyAnimation;
+QT_END_NAMESPACE
+
+class OpacityHelper : QObject
+{
+public:
+    OpacityHelper(QWidget * parent);
+
+    void setOpacity(qreal opacity, bool animated = true);
+
+protected:
+    QGraphicsOpacityEffect * m_opacityFx;
+    QPropertyAnimation * m_opacityAnimation;
+};
+
+#endif // OPACITYHELPER_H

toolbutton.cpp

@@ -1,31 +1,26 @@
 #include "toolbutton.h"
 
+#include "opacityhelper.h"
+
 #include <QPainter>
 #include <QGraphicsOpacityEffect>
 #include <QPropertyAnimation>
 
 ToolButton::ToolButton(QWidget *parent)
     : QPushButton(parent)
-    , m_opacityFx(new QGraphicsOpacityEffect(this))
-    , m_opacityAnimation(new QPropertyAnimation(m_opacityFx, "opacity"))
+    , m_opacityHelper(new OpacityHelper(this))
 {
     setFlat(true);
     setFixedSize(50, 50);
-    setGraphicsEffect(m_opacityFx);
     setStyleSheet("QPushButton {"
                   "background: transparent;"
                   "}"
                   "QPushButton:hover {"
                   "background: red;"
                   "}");
-
-    m_opacityAnimation->setDuration(300);
 }
 
-void ToolButton::setIconOpacity(qreal opacity)
+void ToolButton::setOpacity(qreal opacity, bool animated)
 {
-    m_opacityAnimation->stop();
-    m_opacityAnimation->setStartValue(m_opacityFx->opacity());
-    m_opacityAnimation->setEndValue(opacity);
-    m_opacityAnimation->start();
+    m_opacityHelper->setOpacity(opacity, animated);
 }

toolbutton.h

@@ -3,11 +3,7 @@
 
 #include <QPushButton>
 
-QT_BEGIN_NAMESPACE
-class QGraphicsOpacityEffect;
-class QPropertyAnimation;
-QT_END_NAMESPACE
-
+class OpacityHelper;
 class ToolButton : public QPushButton
 {
     Q_OBJECT
@@ -15,11 +11,10 @@ public:
     ToolButton(QWidget * parent = nullptr);
 
 public slots:
-    void setIconOpacity(qreal opacity);
+    void setOpacity(qreal opacity, bool animated = true);
 
 private:
-    QGraphicsOpacityEffect * m_opacityFx;
-    QPropertyAnimation * m_opacityAnimation;
+    OpacityHelper * m_opacityHelper;
 };
 
 #endif // TOOLBUTTON_H