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/****************************************************************************
**
** Copyright (C) 2015 QUIt Coding Ltd.
** Contact: info@quitcoding.com
**
** This file is part of Cinematic 3D, a Qt3D demo application.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQuick 2.4
Item {
id: root
property real itemHeight: itemWidth * 1.65
property real itemWidth: width * 0.25
property string selectedCoverImage
property alias carouselMoving: pathView.moving
property alias carouselInteractive: pathView.interactive
width: parent.width
height: parent.height
CarouselPathView {
id: pathView
property real prevOffset: 0
onOffsetChanged: {
var delta = offset - prevOffset;
if (delta > 1)
delta -= pathView.count;
else if (delta < -1)
delta += pathView.count;
window.carouselOffset += delta;
prevOffset = offset;
}
}
ShaderEffectSource {
id: pathViewSource
sourceItem: pathView
hideSource: true
visible: false
}
ShaderEffect {
property variant src: pathViewSource
property real highlightAnimation: highlightAnimation2 * highlightAnimation3
property real highlightAnimation2: 1.0
property real highlightAnimation3: 1.0
property real showCarouselOpacity : settings.showCarouselOpacity
Behavior on showCarouselOpacity {
NumberAnimation {
duration: 400
easing.type: Easing.InOutQuad
}
}
SequentialAnimation on highlightAnimation2 {
loops: Animation.Infinite
NumberAnimation {
to: 1.1
duration: 1800
easing.type: Easing.InOutQuad
}
NumberAnimation {
to: 1.0
duration: 1100
easing.type: Easing.InOutQuad
}
}
SequentialAnimation on highlightAnimation3 {
loops: Animation.Infinite
NumberAnimation {
to: 1.04
duration: 1100
easing.type: Easing.InElastic
}
NumberAnimation {
to: 1.0
duration: 2400
easing.type: Easing.OutElastic
}
}
anchors.fill: pathView
mesh: GridMesh {
resolution: Qt.size(32, 16)
}
vertexShader: "
uniform highp mat4 qt_Matrix;
attribute highp vec4 qt_Vertex;
attribute highp vec2 qt_MultiTexCoord0;
varying highp vec2 coord;
uniform highp float highlightAnimation;
void main() {
lowp float PI = 3.14159265;
highp float posy = 0.8 * qt_MultiTexCoord0.y + (0.2*qt_MultiTexCoord0.y) * sin(qt_MultiTexCoord0.x*PI);
coord = vec2(qt_MultiTexCoord0.x, posy);
gl_Position = qt_Matrix * qt_Vertex;
}"
fragmentShader: "
varying highp vec2 coord;
uniform sampler2D src;
uniform lowp float qt_Opacity;
uniform lowp float highlightAnimation;
uniform lowp float showCarouselOpacity;
void main() {
lowp vec4 tex = texture2D(src, coord);
lowp float dist = abs(coord.x-0.5)*2.0;
// Opacity
lowp vec4 gray = vec4((tex.r + tex.g + tex.b) / 3.0);
tex = mix(tex, gray, dist*1.5*showCarouselOpacity);
// Shadow
tex.rgb *= (1.2*highlightAnimation - dist*1.2);
gl_FragColor = tex * qt_Opacity;
}"
}
}
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