/
gallery.js
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/
gallery.js
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import React from "react";
import { imageTypes } from "./imageTypes";
import GazeButton from "../button/gazeButton";
import {
asset,
Image,
View,
VrButton,
Animated,
Button,
StyleSheet,
Text,
CylindricalPanel
} from 'react-vr';
import GalleryImage from "./galleryImage";
import image_gallery from "../../index.vr";
class Gallery extends React.Component{
constructor(props){
super(props);
this.imageDimensions = {
SQUARE: {
style: {
height:500,
width:500
},
vrWidth: 38.5
}
};
this.imageStyles = StyleSheet.create(this.imageDimensions[props.type].style);
this.calculateWidth = this.calculateWidth.bind(this);
this.goToNext = this.goToNext.bind(this);
this.rotateGallery = this.rotateGallery.bind(this);
this.goToPrev = this.goToPrev.bind(this);
this.getPosition = this.getPosition.bind(this);
this.state = {
imageNumber: this.props.initialImage,
containerWidth: this.calculateWidth(props.images),
galleryRotation: new Animated.Value(this.getPosition(props.images, props.initialImage))
};
}
calculateWidth(images){
return this.imageDimensions[this.props.type].style.width * this.props.images.length;
}
goToNext(){
const nextImageNum = this.state.imageNumber + 1;
const nextRotation = this.getPosition(this.props.images, nextImageNum);
this.setState({
imageNumber: nextImageNum
});
this.rotateGallery(nextRotation);
}
goToPrev(){
const prevImageNum = this.state.imageNumber - 1;
const nextRotation = this.getPosition(this.props.images, prevImageNum);
this.setState({
imageNumber: prevImageNum
});
this.rotateGallery(nextRotation);
}
rotateGallery(rotation){
const animation = Animated.timing(this.state.galleryRotation, {
toValue: rotation,
duration: 150
});
animation.start();
}
getPosition(images, imageNumber){
const { type, initialImage } = this.props;
const boxWidth = this.imageDimensions[type].vrWidth;
const boxPosition = imageNumber * boxWidth;
const basePosition = -(boxWidth / 2);
return -(basePosition + ((images.length / 2) + -(imageNumber - 1)) * boxWidth);
}
render(){
const { images } = this.props;
const { imageNumber } = this.state;
const { containerWidth, galleryRotation } = this.state;
const imageStyle = this.imageDimensions[this.props.type].style;
const canNext = imageNumber < images.length;
const canPrev = imageNumber > 1;
return (
<View>
<Animated.View
style={{
transform: [
{ rotateY: galleryRotation }
]
}}>
<CylindricalPanel layer={{
width: containerWidth,
height: 500,
}} >
<View style={{
opacity: 1,
flex:1,
flexDirection:"row",
width: containerWidth,
height: 500,
justifyContent: 'flex-start',
}} >
{this.props.images.map((image, idx) => {
isSelected = (idx + 1) == imageNumber;
return (
<GalleryImage
imageStyle={imageStyle}
src={image}
isSelected={isSelected}
/>
)
})}
</View>
</CylindricalPanel>
</Animated.View>
<View>
<GazeButton disabled={!canPrev} onClick={this.goToPrev}
buttonStyle={{
borderRadius:1,
opacity:.85,
paddingLeft:.06,
borderWidth:.01,
width:.2,
height:.2,
backgroundColor:"#333",
borderColor:"#222"
}}
containerStyle={{
position:"absolute",
transform: [{
translate: [-1.5,.1,-2]
}]
}}>
<Text style={{
color:"white",
bottom:.01,
fontSize: .15,
fontWeight: "bold",
}}>
{"<"}
</Text>
</GazeButton>
<GazeButton disabled={!canNext} onClick={this.goToNext}
buttonStyle={{
borderRadius:1,
opacity:.85,
paddingLeft:.06,
borderWidth:.01,
height:.2,
width:.2,
backgroundColor:"#333",
borderColor:"#222"
}}
containerStyle={{
position:"absolute",
transform: [{
translate: [1.25,.1,-2]
}]
}}>
<Text style={{
color:"white",
bottom:.01,
fontSize: .15,
fontWeight: "bold"
}}>
{">"}
</Text>
</GazeButton>
</View>
</View>
)
}
}
export default Gallery;