Doric/doric-demo/src/ImageDemo.ts

import { Group, Panel, coordinator, text, gravity, Color, LayoutSpec, log, vlayout, scroller, layoutConfig, image, ScaleType, Image } from "doric";
import { colors, label } from "./utils";
import { img_base64 } from "./image_base64";

const imageUrl = 'https://img.zcool.cn/community/01e75b5da933daa801209e1ffa4649.jpg@1280w_1l_2o_100sh.jpg'

import logo from "./images/logo_w.png"
import button from "./images/button.png"

@Entry
class ImageDemo extends Panel {
    build(rootView: Group): void {
        let imageView: Image
        scroller(
            vlayout(
                [
                    text({
                        text: "Image Demo",
                        layoutConfig: layoutConfig().configWidth(LayoutSpec.MOST),
                        textSize: 30,
                        textColor: Color.WHITE,
                        backgroundColor: colors[5],
                        textAlignment: gravity().center(),
                        height: 50,
                    }),

                    label('Button'),
                    image({
                        imageBase64: button,
                        scaleType: ScaleType.ScaleToFill,
                        layoutConfig: {
                            widthSpec: LayoutSpec.FIT,
                            heightSpec: LayoutSpec.FIT,
                        },
                        imageScale: 2,
                    }),
                    image({
                        imageBase64: button,
                        scaleType: ScaleType.ScaleToFill,
                        layoutConfig: {
                            widthSpec: LayoutSpec.FIT,
                            heightSpec: LayoutSpec.FIT,
                        },
                    }),
                    image({
                        imageBase64: button,
                        scaleType: ScaleType.ScaleToFill,
                        layoutConfig: {
                            widthSpec: LayoutSpec.JUST,
                            heightSpec: LayoutSpec.JUST,
                        },
                        width: 200,
                        height: 150 / 2.75,
                        stretchInset: {
                            left: 100,
                            top: 0,
                            right: 100,
                            bottom: 0
                        },
                        imageScale: 2.75,
                    }),
                    image({
                        imageBase64: button,
                        scaleType: ScaleType.ScaleToFill,
                        layoutConfig: {
                            widthSpec: LayoutSpec.JUST,
                            heightSpec: LayoutSpec.JUST,
                        },
                        width: 200,
                        height: 75,
                        stretchInset: {
                            left: 100,
                            top: 0,
                            right: 100,
                            bottom: 0
                        },
                        imageScale: 2,
                    }),
                    label('Gif'),
                    image({
                        imageUrl: "https://misc.aotu.io/ONE-SUNDAY/world-cup_2014_42.gif",
                        scaleType: ScaleType.ScaleToFill,
                        loadCallback: function (ret) {
                            log('this')
                            log('loadCallback', ret)
                        },
                        imageScale: 2,
                    }),
                    label('APNG'),
                    image({
                        imageUrl: "https://misc.aotu.io/ONE-SUNDAY/world_cup_2014_42.png",
                        loadCallback: (ret) => {
                        }
                    }),
                    label('Animated WebP'),
                    image({
                        imageUrl: "https://p.upyun.com/demo/webp/webp/animated-gif-0.webp",
                        loadCallback: (ret) => {
                        }
                    }),
                    label('WebP'),
                    imageView = image({
                        imageUrl: "https://p.upyun.com/demo/webp/webp/jpg-0.webp",
                        layoutConfig: layoutConfig().just(),
                        width: 200,
                        height: 200,
                        // loadCallback: (ret) => {
                        //     if (ret) {
                        //         imageView.width = ret.width
                        //         imageView.height = ret.height
                        //     }
                        // }
                    }),
                    label('ScaleToFill'),
                    image({
                        imageUrl,
                        width: 300,
                        height: 300,
                        isBlur: true,
                        border: {
                            width: 2,
                            color: Color.GRAY,
                        },
                        scaleType: ScaleType.ScaleToFill,
                        layoutConfig: layoutConfig().just(),
                        loadCallback: (ret) => {
                        }
                    }),
                    label('ScaleAspectFit'),
                    image({
                        imageUrl,
                        width: 300,
                        height: 300,
                        border: {
                            width: 2,
                            color: Color.GRAY,
                        },
                        scaleType: ScaleType.ScaleAspectFit,
                        layoutConfig: layoutConfig().just(),
                    }),
                    label('ScaleAspectFill'),
                    image({
                        imageUrl,
                        width: 300,
                        height: 300,
                        border: {
                            width: 2,
                            color: Color.GRAY,
                        },
                        scaleType: ScaleType.ScaleAspectFill,
                        layoutConfig: layoutConfig().just(),
                    }),
                    label('ImageBase64'),
                    image({
                        imageBase64: img_base64[0],
                        width: 300,
                        height: 300,
                        border: {
                            width: 2,
                            color: Color.GRAY,
                        },
                        scaleType: ScaleType.ScaleAspectFill,
                        layoutConfig: layoutConfig().just(),
                    }),
                    label('StretchInset'),
                    image({
                        imageBase64: img_base64[1],
                        height: 60,
                        width: 134,
                        scaleType: ScaleType.ScaleAspectFill,
                        layoutConfig: layoutConfig().just(),
                    }),
                    image({
                        imageBase64: img_base64[1],
                        height: 60,
                        width: 294,
                        scaleType: ScaleType.ScaleToFill,
                        layoutConfig: layoutConfig().just(),
                        stretchInset: {
                            left: 0.85,
                            top: 0,
                            right: 0.149,
                            bottom: 0
                        }
                    }),
                ],
                {
                    layoutConfig: layoutConfig().most().configHeight(LayoutSpec.FIT),
                    gravity: gravity().center(),
                    space: 10,
                }),
            {
                layoutConfig: layoutConfig().most(),
            }
        ).also(it => {
            coordinator(context).verticalScrolling({
                scrollable: it,
                scrollRange: {
                    start: 0,
                    end: 100,
                },
                target: "NavBar",
                changing: {
                    name: "backgroundColor",
                    start: Color.WHITE,
                    end: Color.RED,
                }
            })
            coordinator(context).verticalScrolling({
                scrollable: it,
                scrollRange: {
                    start: 0,
                    end: 100,
                },
                target: imageView,
                changing: {
                    name: "width",
                    start: 10,
                    end: 200,
                }
            })
        }).in(rootView)
    }
}