Add QskSwipeView

Resolves uwerat#107

examples/layouts/CMakeLists.txt

@@ -11,6 +11,7 @@ set(SOURCES
     LinearLayoutPage.h LinearLayoutPage.cpp
     DynamicConstraintsPage.h DynamicConstraintsPage.cpp
     StackLayoutPage.h StackLayoutPage.cpp
+    SwipeViewPage.h SwipeViewPage.cpp
     main.cpp
 )
 qt_add_resources(SOURCES layouts.qrc)

examples/layouts/SwipeViewPage.cpp

@@ -0,0 +1,61 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) 2016 Uwe Rathmann
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#include "SwipeViewPage.h"
+#include "TestRectangle.h"
+
+#include <QskRgbValue.h>
+#include <QskSwipeView.h>
+
+namespace
+{
+class SwipeView : public QskSwipeView
+    {
+        Q_OBJECT
+
+      public:
+        SwipeView( QQuickItem* parent = nullptr )
+            : QskSwipeView( parent )
+        {
+            setObjectName( "SwipeView" );
+
+            setBackgroundColor( Qt::white );
+            setDefaultAlignment( Qt::AlignCenter );
+
+            addRectangle( "Gold" );
+            addRectangle( "SeaGreen" );
+            addRectangle( "SlateBlue" );
+            addRectangle( "Peru" );
+
+            for ( int i = 0; i < itemCount(); i += 2 )
+            {
+                if ( auto control = qskControlCast( itemAtIndex( i ) ) )
+                    control->setFixedSize( 200, 200 );
+            }
+        }
+      private:
+        void addRectangle( const char* colorName )
+        {
+            auto rect = new TestRectangle( colorName );
+            rect->setText( QString::number( itemCount() + 1 ) );
+            addItem( rect );
+        }
+
+    };
+}
+
+SwipeViewPage::SwipeViewPage( QQuickItem* parent )
+    : QskLinearBox( Qt::Vertical, parent )
+{
+    setObjectName( "SwipeViewPage" );
+
+    setMargins( 10 );
+    setBackgroundColor( QskRgb::LightSteelBlue );
+
+    auto swipeView = new SwipeView();
+    addItem( swipeView );
+}
+
+#include "SwipeViewPage.moc"

examples/layouts/SwipeViewPage.h

@@ -0,0 +1,14 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) 2016 Uwe Rathmann
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#pragma once
+
+#include <QskLinearBox.h>
+
+class SwipeViewPage : public QskLinearBox
+{
+  public:
+    SwipeViewPage( QQuickItem* parent = nullptr );
+};

examples/layouts/main.cpp

@@ -8,6 +8,7 @@
 #include "LinearLayoutPage.h"
 #include "GridLayoutPage.h"
 #include "StackLayoutPage.h"
+#include "SwipeViewPage.h"
 #include "TestRectangle.h"
 
 #include <SkinnyShortcut.h>
@@ -43,6 +44,7 @@ int main( int argc, char* argv[] )
     tabView->addTab( "Linear Layout", new LinearLayoutPage() );
     tabView->addTab( "Dynamic\nConstraints", new DynamicConstraintsPage() );
     tabView->addTab( "Stack Layout", new StackLayoutPage() );
+    tabView->addTab( "Swipe View", new SwipeViewPage() );
 
     tabView->setCurrentIndex( 0 );
 

src/CMakeLists.txt

@@ -236,6 +236,7 @@ list(APPEND HEADERS
     controls/QskSubWindowSkinlet.h
     controls/QskSwitchButton.h
     controls/QskSwitchButtonSkinlet.h
+    controls/QskSwipeView.h
     controls/QskTabBar.h
     controls/QskTabButton.h
     controls/QskTabButtonSkinlet.h
@@ -334,6 +335,7 @@ list(APPEND SOURCES
     controls/QskSubWindowSkinlet.cpp
     controls/QskSwitchButton.cpp
     controls/QskSwitchButtonSkinlet.cpp
+    controls/QskSwipeView.cpp
     controls/QskTabBar.cpp
     controls/QskTabButton.cpp
     controls/QskTabButtonSkinlet.cpp

src/controls/QskSwipeView.cpp

@@ -0,0 +1,112 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) 2016 Uwe Rathmann
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#include "QskSwipeView.h"
+
+#include "QskEvent.h"
+#include "QskGesture.h"
+#include "QskPanGestureRecognizer.h"
+#include "QskStackBoxAnimator.h"
+
+class QskSwipeView::PrivateData
+{
+  public:
+    QskPanGestureRecognizer panRecognizer;
+    int panRecognizerTimeout = 100;
+    int duration = 500;
+};
+
+QSK_SUBCONTROL( QskSwipeView, Panel )
+
+QskSwipeView::QskSwipeView( QQuickItem* parent )
+    : Inherited( parent )
+    , m_data( new PrivateData() )
+{
+    setSubcontrolProxy( QskBox::Panel, Panel );
+
+    setFiltersChildMouseEvents( true );
+
+    setAcceptedMouseButtons( Qt::LeftButton );
+
+    m_data->panRecognizer.setWatchedItem( this );
+    m_data->panRecognizer.setOrientations( Qt::Horizontal );
+    m_data->panRecognizer.setMinDistance( 50 );
+}
+
+QskSwipeView::~QskSwipeView()
+{
+}
+
+
+int QskSwipeView::duration() const
+{
+    return m_data->duration;
+}
+
+void QskSwipeView::setDuration( int duration )
+{
+    m_data->duration = duration;
+}
+
+
+bool QskSwipeView::gestureFilter( QQuickItem* item, QEvent* event )
+{
+    // see QskScrollBox.cpp
+
+    auto& recognizer = m_data->panRecognizer;
+
+    if ( event->type() == QEvent::MouseButtonPress )
+    {
+        if ( ( item != this ) && ( recognizer.timeout() < 0 ) )
+        {
+            const auto mouseEvent = static_cast< QMouseEvent* >( event );
+
+            if ( recognizer.hasProcessedBefore( mouseEvent ) )
+                return false;
+        }
+
+        recognizer.setTimeout( ( item == this ) ? -1 : m_data->panRecognizerTimeout );
+    }
+
+    return m_data->panRecognizer.processEvent( item, event );
+}
+
+void QskSwipeView::gestureEvent( QskGestureEvent* event )
+{
+    if( event->gesture()->type() == QskGesture::Pan && event->gesture()->state() == QskGesture::Started )
+    {
+        const auto gesture = static_cast< const QskPanGesture* >( event->gesture().get() );
+
+        auto animator = dynamic_cast< QskStackBoxAnimator1* >( this->animator() );
+
+        if ( animator == nullptr )
+        {
+            animator = new QskStackBoxAnimator1( this );
+            animator->setOrientation( Qt::Horizontal );
+        }
+
+        animator->setDuration( m_data->duration );
+        setAnimator( animator );
+
+        const auto direction = ( ( gesture->angle() < 90.0 ) || ( gesture->angle() > 270.0 ) )
+            ? Qsk::LeftToRight : Qsk::RightToLeft;
+
+        auto newIndex = ( direction == Qsk::LeftToRight ) ? currentIndex() - 1 : currentIndex() + 1;
+
+        if( newIndex < 0 )
+            newIndex += itemCount();
+
+        newIndex %= itemCount();
+
+        setCurrentIndex( newIndex );
+    }
+    else
+    {
+        Inherited::gestureEvent( event );
+    }
+
+}
+
+#include "moc_QskSwipeView.cpp"

src/controls/QskSwipeView.h

@@ -0,0 +1,38 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) 2016 Uwe Rathmann
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#ifndef QSK_SWIPE_VIEW_H
+#define QSK_SWIPE_VIEW_H
+
+#include "QskStackBox.h"
+
+class QskTabBar;
+class QskTabButton;
+
+class QSK_EXPORT QskSwipeView : public QskStackBox
+{
+    Q_OBJECT
+
+    typedef QskStackBox Inherited;
+
+  public:
+    QSK_SUBCONTROLS( Panel )
+
+    QskSwipeView( QQuickItem* parent = nullptr );
+    ~QskSwipeView() override;
+
+    int duration() const;
+    void setDuration( int );
+
+  protected:
+    bool gestureFilter( QQuickItem*, QEvent* ) override final;
+    void gestureEvent( QskGestureEvent* ) override final;
+
+  private:
+    class PrivateData;
+    std::unique_ptr< PrivateData > m_data;
+};
+
+#endif