<template name="yq-avatar">
  <view>
    <image
      :src="imgSrc.imgSrc"
      @click="fSelect"
      :style="[imgStyle]"
      class="my-avatar"
    ></image>
    <canvas
      canvas-id="avatar-canvas"
      id="avatar-canvas"
      class="my-canvas"
      :style="{ top: styleTop, height: cvsStyleHeight }"
      disable-scroll="false"
    ></canvas>
    <canvas
      canvas-id="oper-canvas"
      id="oper-canvas"
      class="oper-canvas"
      :style="{ top: styleTop, height: cvsStyleHeight }"
      disable-scroll="false"
      @touchstart="fStart"
      @touchmove="fMove"
      @touchend="fEnd"
    ></canvas>
    <canvas
      canvas-id="prv-canvas"
      id="prv-canvas"
      class="prv-canvas"
      disable-scroll="false"
      @touchstart="fHideImg"
      :style="{ height: cvsStyleHeight, top: prvTop }"
    ></canvas>
    <view class="oper-wrapper" :style="{ display: styleDisplay }">
      <view class="oper">
        <view class="btn-wrapper" v-if="showOper">
          <view
            @click="fSelect"
            hover-class="hover"
            :style="{ width: btnWidth }"
            ><text>重选</text></view
          >
          <view @click="fClose" hover-class="hover" :style="{ width: btnWidth }"
            ><text>关闭</text></view
          >
          <view
            @click="fRotate"
            hover-class="hover"
            :style="{ width: btnWidth, display: btnDsp }"
            ><text>旋转</text></view
          >
          <view
            @click="fPreview"
            hover-class="hover"
            :style="{ width: btnWidth }"
            ><text>预览</text></view
          >
          <view
            @click="fUpload"
            hover-class="hover"
            :style="{ width: btnWidth }"
            ><text>上传</text></view
          >
        </view>
        <view class="clr-wrapper" v-else>
          <slider
            class="my-slider"
            @change="fColorChange"
            block-size="25"
            value="0"
            min="-100"
            max="100"
            activeColor="red"
            backgroundColor="green"
            block-color="grey"
            show-value
          ></slider>
          <view
            @click="fPrvUpload"
            hover-class="hover"
            :style="{ width: btnWidth }"
            ><text>上传</text></view
          >
        </view>
      </view>
    </view>
  </view>
</template>

<script>
const tabHeight = 50;
export default {
  name: "yq-avatar",
  data() {
    return {
      cvsStyleHeight: "0px",
      styleDisplay: "none",
      styleTop: "-10000px",
      prvTop: "-10000px",
      imgStyle: {},
      selStyle: {},
      showOper: true,
      imgSrc: {
        imgSrc: "",
      },
      btnWidth: "19%",
      btnDsp: "flex",
    };
  },
  watch: {
    avatarSrc() {
      this.imgSrc.imgSrc = this.avatarSrc;
    },
  },
  props: {
    avatarSrc: "",
    avatarStyle: "",
    selWidth: "",
    selHeight: "",
    expWidth: "",
    expHeight: "",
    minScale: "",
    maxScale: "",
    canScale: "",
    canRotate: "",
    lockWidth: "",
    lockHeight: "",
    stretch: "",
    lock: "",
    noTab: "",
    inner: "",
    quality: "",
    index: "",
  },
  created() {
    this.ctxCanvas = uni.createCanvasContext("avatar-canvas", this);
    this.ctxCanvasOper = uni.createCanvasContext("oper-canvas", this);
    this.ctxCanvasPrv = uni.createCanvasContext("prv-canvas", this);
    this.qlty = parseInt(this.quality) || 0.9;
    this.imgSrc.imgSrc = this.avatarSrc;
    this.letRotate =
      this.canRotate === "false" || this.inner === "true" ? 0 : 1;
    this.letScale = this.canScale === "false" ? 0 : 1;
    this.isin = this.inner === "true" ? 1 : 0;
    this.indx = this.index || undefined;
    this.mnScale = this.minScale || 0.3;
    this.mxScale = this.maxScale || 4;
    this.noBar = this.noTab === "true" ? 1 : 0;
    this.stc = this.stretch;
    this.lck = this.lock;
    if (this.isin) {
      this.btnWidth = "24%";
      this.btnDsp = "none";
    } else {
      this.btnWidth = "19%";
      this.btnDsp = "flex";
    }

    if (this.noBar) {
      this.moreHeight = 0;
      this.fWindowResize();
    } else {
      uni.showTabBar({
        complete: (res) => {
          this.moreHeight = res.errMsg === "showTabBar:ok" ? 50 : 0;
          this.fWindowResize();
        },
      });
    }
  },
  methods: {
    fWindowResize() {
      let sysInfo = uni.getSystemInfoSync();
      this.platform = sysInfo.platform;
      this.pixelRatio = sysInfo.pixelRatio;
      this.windowWidth = sysInfo.windowWidth;
      // #ifdef H5
      this.drawTop = sysInfo.windowTop;
      this.windowHeight = sysInfo.windowHeight + sysInfo.windowBottom;
      this.cvsStyleHeight = this.windowHeight - tabHeight + "px";
      // #endif
      // #ifdef APP-PLUS
      if (this.platform === "android") {
        this.windowHeight = sysInfo.screenHeight + sysInfo.statusBarHeight;
        this.cvsStyleHeight = this.windowHeight - tabHeight + "px";
      } else {
        this.windowHeight = sysInfo.windowHeight + this.moreHeight;
        this.cvsStyleHeight = this.windowHeight - tabHeight + 6 + "px";
      }
      // #endif
      // #ifdef MP
      this.windowHeight = sysInfo.windowHeight + this.moreHeight;
      this.cvsStyleHeight = this.windowHeight - tabHeight - 2 + "px";
      // #endif
      this.pxRatio = this.windowWidth / 750;

      let style = this.avatarStyle;
      if (style && style !== true && (style = style.trim())) {
        style = style.split(";");
        let obj = {};
        for (let v of style) {
          if (!v) continue;
          v = v.trim().split(":");
          if (v[1].indexOf("upx") >= 0) {
            let arr = v[1].trim().split(" ");
            for (let k in arr) {
              if (!arr[k]) continue;
              if (arr[k].indexOf("upx") >= 0) {
                arr[k] = parseFloat(arr[k]) * this.pxRatio + "px";
              }
            }
            v[1] = arr.join(" ");
          }
          obj[v[0].trim()] = v[1].trim();
        }
        this.imgStyle = obj;
      }

      this.expWidth &&
        (this.exportWidth =
          this.expWidth.indexOf("upx") >= 0
            ? parseInt(this.expWidth) * this.pxRatio
            : parseInt(this.expWidth));
      this.expHeight &&
        (this.exportHeight =
          this.expHeight.indexOf("upx") >= 0
            ? parseInt(this.expHeight) * this.pxRatio
            : parseInt(this.expHeight));

      if (this.styleDisplay === "flex") {
        this.fDrawInit(true);
      }
      this.fHideImg();
    },
    async fSelect() {
      if (this.fSelecting) return;
      this.fSelecting = true;
      setTimeout(() => {
        this.fSelecting = false;
      }, 500);

      uni.chooseImage({
        count: 1,
        sizeType: ["original", "compressed"],
        sourceType: ["album", "camera"],
        success: (r) => {
          uni.showLoading({ mask: true });
          let path = (this.imgPath = r.tempFilePaths[0]);
          uni.getImageInfo({
            src: path,
            success: (r) => {
              this.imgWidth = r.width;
              this.imgHeight = r.height;
              this.path = path;
              if (!this.hasSel) {
                let style = this.selStyle || {};
                if (this.selWidth && this.selHeight) {
                  let selWidth =
                      this.selWidth.indexOf("upx") >= 0
                        ? parseInt(this.selWidth) * this.pxRatio
                        : parseInt(this.selWidth),
                    selHeight =
                      this.selHeight.indexOf("upx") >= 0
                        ? parseInt(this.selHeight) * this.pxRatio
                        : parseInt(this.selHeight);
                  style.width = selWidth + "px";
                  style.height = selHeight + "px";
                  style.top =
                    (this.windowHeight - selHeight - tabHeight) / 2 + "px";
                  style.left = (this.windowWidth - selWidth) / 2 + "px";
                } else {
                  uni.showModal({
                    title: "裁剪框的宽或高没有设置",
                    showCancel: false,
                  });
                  return;
                }
                this.selStyle = style;
              }

              if (this.noBar) {
                this.fDrawInit(true);
              } else {
                uni.hideTabBar({
                  complete: () => {
                    this.fDrawInit(true);
                  },
                });
              }
            },
            fail: () => {
              uni.showToast({
                title: "error3",
                duration: 2000,
              });
            },
            complete() {
              uni.hideLoading();
            },
          });
        },
      });
    },
    fUpload() {
      if (this.fUploading) return;
      this.fUploading = true;
      setTimeout(() => {
        this.fUploading = false;
      }, 1000);

      let style = this.selStyle,
        x = parseInt(style.left),
        y = parseInt(style.top),
        width = parseInt(style.width),
        height = parseInt(style.height),
        expWidth = this.exportWidth || width,
        expHeight = this.exportHeight || height;

      // #ifdef H5
      x *= this.pixelRatio;
      y *= this.pixelRatio;
      expWidth = width;
      expHeight = height;
      // #endif

      uni.showLoading({ mask: true });
      this.styleDisplay = "none";
      this.styleTop = "-10000px";
      this.hasSel = false;
      this.fHideImg();
      uni.canvasToTempFilePath(
        {
          x: x,
          y: y,
          width: width,
          height: height,
          destWidth: expWidth,
          destHeight: expHeight,
          canvasId: "avatar-canvas",
          fileType: "png",
          quality: this.qlty,
          success: (r) => {
            r = r.tempFilePath;
            // #ifdef H5
            this.btop(r).then((r) => {
              if (this.exportWidth && this.exportHeight) {
                let ctxCanvas = this.ctxCanvas;
                (expWidth = this.exportWidth), (expHeight = this.exportHeight);

                ctxCanvas.drawImage(r, 0, 0, expWidth, expHeight);
                ctxCanvas.draw(false, () => {
                  uni.canvasToTempFilePath({
                    x: 0,
                    y: 0,
                    width: expWidth,
                    height: expHeight,
                    destWidth: expWidth,
                    destHeight: expHeight,
                    canvasId: "avatar-canvas",
                    fileType: "png",
                    quality: this.qlty,
                    success: (r) => {
                      r = r.tempFilePath;
                      this.btop(r).then((r) => {
                        this.$emit("upload", {
                          avatar: this.imgSrc,
                          path: r,
                          index: this.indx,
                          data: this.rtn,
                        });
                      });
                    },
                    fail: () => {
                      uni.showToast({
                        title: "error0",
                        duration: 2000,
                      });
                    },
                  });
                });
              } else {
                this.$emit("upload", {
                  avatar: this.imgSrc,
                  path: r,
                  index: this.indx,
                  data: this.rtn,
                });
              }
            });
            // #endif
            // #ifndef H5
            this.$emit("upload", {
              avatar: this.imgSrc,
              path: r,
              index: this.indx,
              data: this.rtn,
            });
            // #endif
          },
          fail: (res) => {
            uni.showToast({
              title: "error1",
              duration: 2000,
            });
          },
          complete: () => {
            uni.hideLoading();
            this.noBar || uni.showTabBar();
          },
        },
        this
      );
    },
    fPrvUpload() {
      if (this.fPrvUploading) return;
      this.fPrvUploading = true;
      setTimeout(() => {
        this.fPrvUploading = false;
      }, 1000);

      let style = this.selStyle,
        destWidth = parseInt(style.width),
        destHeight = parseInt(style.height),
        prvX = this.prvX,
        prvY = this.prvY,
        prvWidth = this.prvWidth,
        prvHeight = this.prvHeight,
        expWidth = this.exportWidth || prvWidth,
        expHeight = this.exportHeight || prvHeight;

      // #ifdef H5
      prvX *= this.pixelRatio;
      prvY *= this.pixelRatio;
      expWidth = prvWidth;
      expHeight = prvHeight;
      // #endif

      uni.showLoading({ mask: true });

      this.styleDisplay = "none";
      this.styleTop = "-10000px";
      this.hasSel = false;
      this.fHideImg();
      uni.canvasToTempFilePath(
        {
          x: prvX,
          y: prvY,
          width: prvWidth,
          height: prvHeight,
          destWidth: expWidth,
          destHeight: expHeight,
          canvasId: "prv-canvas",
          fileType: "png",
          quality: this.qlty,
          success: (r) => {
            r = r.tempFilePath;
            // #ifdef H5
            this.btop(r).then((r) => {
              if (this.exportWidth && this.exportHeight) {
                let ctxCanvas = this.ctxCanvas;
                (expWidth = this.exportWidth), (expHeight = this.exportHeight);

                ctxCanvas.drawImage(r, 0, 0, expWidth, expHeight);
                ctxCanvas.draw(false, () => {
                  uni.canvasToTempFilePath({
                    x: 0,
                    y: 0,
                    width: expWidth,
                    height: expHeight,
                    destWidth: expWidth,
                    destHeight: expHeight,
                    canvasId: "avatar-canvas",
                    fileType: "png",
                    quality: this.qlty,
                    success: (r) => {
                      r = r.tempFilePath;
                      this.btop(r).then((r) => {
                        this.$emit("upload", {
                          avatar: this.imgSrc,
                          path: r,
                          index: this.indx,
                          data: this.rtn,
                        });
                      });
                    },
                    fail: () => {
                      uni.showToast({
                        title: "error0",
                        duration: 2000,
                      });
                    },
                  });
                });
              } else {
                this.$emit("upload", {
                  avatar: this.imgSrc,
                  path: r,
                  index: this.indx,
                  data: this.rtn,
                });
              }
            });
            // #endif
            // #ifndef H5
            this.$emit("upload", {
              avatar: this.imgSrc,
              path: r,
              index: this.indx,
              data: this.rtn,
            });
            // #endif
          },
          fail: () => {
            uni.showToast({
              title: "error_prv",
              duration: 2000,
            });
          },
          complete: () => {
            uni.hideLoading();
            this.noBar || uni.showTabBar();
          },
        },
        this
      );
    },
    fDrawInit(ini = false) {
      let allWidth = this.windowWidth,
        allHeight = this.windowHeight,
        imgWidth = this.imgWidth,
        imgHeight = this.imgHeight,
        imgRadio = imgWidth / imgHeight,
        useWidth = allWidth - 40,
        useHeight = allHeight - tabHeight - 80,
        pixelRatio = this.pixelRatio,
        selWidth = parseInt(this.selStyle.width),
        selHeight = parseInt(this.selStyle.height);

      this.fixWidth = 0;
      this.fixHeight = 0;
      this.lckWidth = 0;
      this.lckHeight = 0;
      switch (this.stc) {
        case "x":
          this.fixWidth = 1;
          break;
        case "y":
          this.fixHeight = 1;
          break;
        case "long":
          if (imgRadio > 1) this.fixWidth = 1;
          else this.fixHeight = 1;
          break;
        case "short":
          if (imgRadio > 1) this.fixHeight = 1;
          else this.fixWidth = 1;
          break;
        case "longSel":
          if (selWidth > selHeight) this.fixWidth = 1;
          else this.fixHeight = 1;
          break;
        case "shortSel":
          if (selWidth > selHeight) this.fixHeight = 1;
          else this.fixWidth = 1;
          break;
      }
      switch (this.lck) {
        case "x":
          this.lckWidth = 1;
          break;
        case "y":
          this.lckHeight = 1;
          break;
        case "long":
          if (imgRadio > 1) this.lckWidth = 1;
          else this.lckHeight = 1;
          break;
        case "short":
          if (imgRadio > 1) this.lckHeight = 1;
          else this.lckWidth = 1;
          break;
        case "longSel":
          if (selWidth > selHeight) this.lckWidth = 1;
          else this.lckHeight = 1;
          break;
        case "shortSel":
          if (selWidth > selHeight) this.lckHeight = 1;
          else this.lckWidth = 1;
          break;
      }
      if (this.fixWidth) {
        useWidth = selWidth;
        useHeight = useWidth / imgRadio;
      } else if (this.fixHeight) {
        useHeight = selHeight;
        useWidth = useHeight * imgRadio;
      } else if (imgRadio < 1) {
        if (imgHeight < useHeight) {
          useWidth = imgWidth;
          useHeight = imgHeight;
        } else {
          useHeight = useHeight;
          useWidth = useHeight * imgRadio;
        }
      } else {
        if (imgWidth < useWidth) {
          useWidth = imgWidth;
          useHeight = imgHeight;
        } else {
          useWidth = useWidth;
          useHeight = useWidth / imgRadio;
        }
      }
      if (this.isin) {
        this.scaleWidth = 0;
        this.scaleHeight = 0;
        if (useWidth < selWidth) {
          useWidth = selWidth;
          useHeight = useWidth / imgRadio;
          this.lckHeight = 0;
        }
        if (useHeight < selHeight) {
          useHeight = selHeight;
          useWidth = useHeight * imgRadio;
          this.lckWidth = 0;
        }
      }

      this.scaleSize = 1;
      this.rotateDeg = 0;
      this.posWidth = (allWidth - useWidth) / 2;
      this.posHeight = (allHeight - useHeight - tabHeight) / 2;
      this.useWidth = useWidth;
      this.useHeight = useHeight;

      let style = this.selStyle,
        left = parseInt(style.left),
        top = parseInt(style.top),
        width = parseInt(style.width),
        height = parseInt(style.height),
        canvas = this.canvas,
        canvasOper = this.canvasOper,
        ctxCanvas = this.ctxCanvas,
        ctxCanvasOper = this.ctxCanvasOper;

      ctxCanvasOper.setLineWidth(3);
      ctxCanvasOper.setStrokeStyle("grey");
      ctxCanvasOper.setGlobalAlpha(0.4);
      ctxCanvasOper.setFillStyle("black");
      ctxCanvasOper.strokeRect(left, top, width, height);
      ctxCanvasOper.fillRect(0, 0, this.windowWidth, top);
      ctxCanvasOper.fillRect(0, top, left, height);
      ctxCanvasOper.fillRect(
        0,
        top + height,
        this.windowWidth,
        this.windowHeight - height - top - tabHeight
      );
      ctxCanvasOper.fillRect(
        left + width,
        top,
        this.windowWidth - width - left,
        height
      );
      ctxCanvasOper.setStrokeStyle("red");
      ctxCanvasOper.moveTo(left + 20, top);
      ctxCanvasOper.lineTo(left, top);
      ctxCanvasOper.lineTo(left, top + 20);
      ctxCanvasOper.moveTo(left + width - 20, top);
      ctxCanvasOper.lineTo(left + width, top);
      ctxCanvasOper.lineTo(left + width, top + 20);
      ctxCanvasOper.moveTo(left + 20, top + height);
      ctxCanvasOper.lineTo(left, top + height);
      ctxCanvasOper.lineTo(left, top + height - 20);
      ctxCanvasOper.moveTo(left + width - 20, top + height);
      ctxCanvasOper.lineTo(left + width, top + height);
      ctxCanvasOper.lineTo(left + width, top + height - 20);
      ctxCanvasOper.stroke();

      ctxCanvasOper.draw(false, () => {
        if (ini) {
          this.styleDisplay = "flex";
          // #ifdef H5
          this.styleTop = this.drawTop + "px";
          // #endif
          // #ifndef H5
          this.styleTop = "0";
          // #endif
          ctxCanvas.setFillStyle("black");
          this.fDrawImage();
        }
      });

      this.$emit("avtinit");
    },
    fDrawImage() {
      let tm_now = Date.now();
      if (tm_now - this.drawTm < 20) return;
      this.drawTm = tm_now;
      let ctxCanvas = this.ctxCanvas;
      ctxCanvas.fillRect(0, 0, this.windowWidth, this.windowHeight - tabHeight);
      ctxCanvas.translate(
        this.posWidth + this.useWidth / 2,
        this.posHeight + this.useHeight / 2
      );
      ctxCanvas.scale(this.scaleSize, this.scaleSize);
      ctxCanvas.rotate((this.rotateDeg * Math.PI) / 180);
      ctxCanvas.drawImage(
        this.imgPath,
        -this.useWidth / 2,
        -this.useHeight / 2,
        this.useWidth,
        this.useHeight
      );
      ctxCanvas.draw(false);
    },
    fHideImg() {
      this.prvImg = "";
      this.prvTop = "-10000px";
      this.showOper = true;
      this.prvImgData = null;
      this.target = null;
    },
    fClose() {
      this.styleDisplay = "none";
      this.styleTop = "-10000px";
      this.hasSel = false;
      this.fHideImg();
      this.noBar || uni.showTabBar();
    },
    fPreview() {
      if (this.fPreviewing) return;
      this.fPreviewing = true;
      setTimeout(() => {
        this.fPreviewing = false;
      }, 1000);

      let style = this.selStyle,
        x = parseInt(style.left),
        y = parseInt(style.top),
        width = parseInt(style.width),
        height = parseInt(style.height);

      // #ifdef H5
      x *= this.pixelRatio;
      y *= this.pixelRatio;
      // #endif

      uni.showLoading({ mask: true });

      uni.canvasToTempFilePath(
        {
          x: x,
          y: y,
          width: width,
          height: height,
          canvasId: "avatar-canvas",
          fileType: "png",
          quality: this.qlty,
          success: (r) => {
            this.prvImgTmp = r = r.tempFilePath;

            let ctxCanvasPrv = this.ctxCanvasPrv,
              prvX = this.windowWidth,
              prvY = parseInt(this.cvsStyleHeight),
              prvWidth = parseInt(this.selStyle.width),
              prvHeight = parseInt(this.selStyle.height),
              useWidth = prvX - 40,
              useHeight = prvY - 80,
              radio = useWidth / prvWidth,
              rHeight = prvHeight * radio;
            if (rHeight < useHeight) {
              prvWidth = useWidth;
              prvHeight = rHeight;
            } else {
              radio = useHeight / prvHeight;
              prvWidth *= radio;
              prvHeight = useHeight;
            }
            ctxCanvasPrv.setFillStyle("black");
            ctxCanvasPrv.fillRect(0, 0, prvX, prvY);
            this.prvX = prvX = (prvX - prvWidth) / 2;
            this.prvY = prvY = (prvY - prvHeight) / 2;
            this.prvWidth = prvWidth;
            this.prvHeight = prvHeight;
            ctxCanvasPrv.drawImage(r, prvX, prvY, prvWidth, prvHeight);
            ctxCanvasPrv.draw(false);

            // #ifdef H5
            this.btop(r).then((r) => {
              this.showOper = false;
              this.prvTop = this.drawTop + "px";
            });
            // #endif
            // #ifndef H5
            if (this.platform != "android") {
              this.showOper = false;
            }
            this.prvTop = "0";
            // #endif
          },
          fail: () => {
            uni.showToast({
              title: "error2",
              duration: 2000,
            });
          },
          complete: () => {
            uni.hideLoading();
          },
        },
        this
      );
    },
    fChooseImg(index = undefined, params = undefined, data = undefined) {
      if (params) {
        let selWidth = params.selWidth,
          selHeight = params.selHeight,
          expWidth = params.expWidth,
          expHeight = params.expHeight,
          quality = params.quality,
          canRotate = params.canRotate,
          canScale = params.canScale,
          minScale = params.minScale,
          maxScale = params.maxScale,
          stretch = params.stretch,
          inner = params.inner,
          lock = params.lock;

        expWidth &&
          (this.exportWidth =
            expWidth.indexOf("upx") >= 0
              ? parseInt(expWidth) * this.pxRatio
              : parseInt(expWidth));
        expHeight &&
          (this.exportHeight =
            expHeight.indexOf("upx") >= 0
              ? parseInt(expHeight) * this.pxRatio
              : parseInt(expHeight));
        this.letRotate = canRotate === "false" ? 0 : 1;
        this.letScale = canScale === "false" ? 0 : 1;
        this.qlty = parseInt(quality) || 0.9;
        this.mnScale = minScale || 0.3;
        this.mxScale = maxScale || 4;
        this.stc = stretch;
        this.isin = inner === "true" ? 1 : 0;
        this.lck = lock;
        if (this.isin) {
          this.btnWidth = "24%";
          this.btnDsp = "none";
        } else {
          this.btnWidth = "19%";
          this.btnDsp = "flex";
        }

        if (selWidth && selHeight) {
          selWidth =
            selWidth.indexOf("upx") >= 0
              ? parseInt(selWidth) * this.pxRatio
              : parseInt(selWidth);
          selHeight =
            selHeight.indexOf("upx") >= 0
              ? parseInt(selHeight) * this.pxRatio
              : parseInt(selHeight);
          this.selStyle.width = selWidth + "px";
          this.selStyle.height = selHeight + "px";
          this.selStyle.top =
            (this.windowHeight - selHeight - tabHeight) / 2 + "px";
          this.selStyle.left = (this.windowWidth - selWidth) / 2 + "px";
          this.hasSel = true;
        }
      }
      this.rtn = data;
      this.indx = index;
      this.fSelect();
    },
    fRotate() {
      // #ifdef APP-PLUS
      if (this.platform === "android") {
        if (this.fRotateing) return;
        this.fRotateing = true;
        setTimeout(() => {
          this.fRotateing = false;
        }, 500);
      }
      // #endif

      // if(this.letRotate) {
      this.rotateDeg += 90 - (this.rotateDeg % 90);
      this.fDrawImage();
      // }
    },
    fStart(e) {
      let touches = e.touches,
        touch0 = touches[0],
        touch1 = touches[1];

      this.touch0 = touch0;
      this.touch1 = touch1;

      if (touch1) {
        let x = touch1.x - touch0.x,
          y = touch1.y - touch0.y;
        this.fgDistance = Math.sqrt(x * x + y * y);
      }
    },
    fMove(e) {
      let touches = e.touches,
        touch0 = touches[0],
        touch1 = touches[1];

      if (touch1) {
        let x = touch1.x - touch0.x,
          y = touch1.y - touch0.y,
          fgDistance = Math.sqrt(x * x + y * y),
          scaleSize = 0.005 * (fgDistance - this.fgDistance),
          beScaleSize = this.scaleSize + scaleSize;

        do {
          if (!this.letScale) break;
          if (beScaleSize < this.mnScale) break;
          if (beScaleSize > this.mxScale) break;
          if (this.isin) {
            let imgWidth = this.useWidth * beScaleSize,
              imgHeight = this.useHeight * beScaleSize,
              rx0 = this.posWidth + this.useWidth / 2,
              ry0 = this.posHeight + this.useHeight / 2,
              l = rx0 - imgWidth / 2,
              t = ry0 - imgHeight / 2,
              r = l + imgWidth,
              b = t + imgHeight,
              left = parseInt(this.selStyle.left),
              top = parseInt(this.selStyle.top),
              width = parseInt(this.selStyle.width),
              height = parseInt(this.selStyle.height);
            if (left < l || left + width > r || top < t || top + height > b)
              break;
            this.scaleWidth = (this.useWidth - imgWidth) / 2;
            this.scaleHeight = (this.useHeight - imgHeight) / 2;
          }

          this.scaleSize = beScaleSize;
        } while (0);
        this.fgDistance = fgDistance;

        if (touch1.x !== touch0.x && this.letRotate) {
          x = (this.touch1.y - this.touch0.y) / (this.touch1.x - this.touch0.x);
          y = (touch1.y - touch0.y) / (touch1.x - touch0.x);
          this.rotateDeg += (Math.atan((y - x) / (1 + x * y)) * 180) / Math.PI;
          this.touch0 = touch0;
          this.touch1 = touch1;
        }

        this.fDrawImage();
      } else if (this.touch0) {
        let x = touch0.x - this.touch0.x,
          y = touch0.y - this.touch0.y,
          beX = this.posWidth + x,
          beY = this.posHeight + y;
        if (this.isin) {
          let imgWidth = this.useWidth * this.scaleSize,
            imgHeight = this.useHeight * this.scaleSize,
            rx0 = beX + this.useWidth / 2,
            ry0 = beY + this.useHeight / 2,
            l = rx0 - imgWidth / 2,
            t = ry0 - imgHeight / 2,
            r = l + imgWidth,
            b = t + imgHeight,
            left = parseInt(this.selStyle.left),
            top = parseInt(this.selStyle.top),
            width = parseInt(this.selStyle.width),
            height = parseInt(this.selStyle.height);
          if (!this.lckWidth && Math.abs(x) < 100) {
            if (left >= l && left + width <= r) {
              this.posWidth = beX;
            } else if (left < l) {
              this.posWidth = left - this.scaleWidth;
            } else if (left + width > r) {
              this.posWidth = left - (imgWidth - width) - this.scaleWidth;
            }
          }
          if (!this.lckHeight && Math.abs(y) < 100) {
            if (top >= t && top + height <= b) {
              this.posHeight = beY;
            } else if (top < t) {
              this.posHeight = top - this.scaleHeight;
            } else if (top + height > b) {
              this.posHeight = top - (imgHeight - height) - this.scaleHeight;
            }
          }
        } else {
          if (Math.abs(x) < 100 && !this.lckWidth) this.posWidth = beX;
          if (Math.abs(y) < 100 && !this.lckHeight) this.posHeight = beY;
        }

        this.touch0 = touch0;
        this.fDrawImage();
      }
    },
    fEnd(e) {
      let touches = e.touches,
        touch0 = touches && touches[0],
        touch1 = touches && touches[1];
      if (touch0) {
        this.touch0 = touch0;
      } else {
        this.touch0 = null;
        this.touch1 = null;
      }
    },
    fGetImgData() {
      return new Promise((resolve, reject) => {
        let prvX = this.prvX,
          prvY = this.prvY,
          prvWidth = this.prvWidth,
          prvHeight = this.prvHeight;
        // #ifdef APP-PLUS||H5
        prvX *= this.pixelRatio;
        prvY *= this.pixelRatio;
        prvWidth *= this.pixelRatio;
        prvHeight *= this.pixelRatio;
        // #endif
        uni.canvasGetImageData(
          {
            canvasId: "prv-canvas",
            x: prvX,
            y: prvY,
            width: prvWidth,
            height: prvHeight,
            success(res) {
              resolve(res.data);
            },
            fail(err) {
              reject(err);
            },
          },
          this
        );
      });
    },
    async fColorChange(e) {
      let tm_now = Date.now();
      if (tm_now - this.prvTm < 100) return;
      this.prvTm = tm_now;

      uni.showLoading({ mask: true });

      if (!this.prvImgData) {
        if (
          !(this.prvImgData = await this.fGetImgData().catch((res) => {
            uni.showToast({
              title: "error_read",
              duration: 2000,
            });
          }))
        )
          return;
        this.target = new Uint8ClampedArray(this.prvImgData.length);
      }

      let data = this.prvImgData,
        target = this.target,
        i = e.detail.value,
        r,
        g,
        b,
        a,
        h,
        s,
        l,
        d,
        p,
        q,
        t,
        min,
        max,
        hK,
        tR,
        tG,
        tB;

      if (i === 0) {
        target = data;
      } else {
        i = (i + 100) / 200;
        if (i < 0.005) i = 0;
        if (i > 0.995) i = 1;
        for (let n = data.length - 1; n >= 0; n -= 4) {
          r = data[n - 3] / 255;
          g = data[n - 2] / 255;
          b = data[n - 1] / 255;
          max = Math.max(r, g, b);
          min = Math.min(r, g, b);
          d = max - min;
          if (max === min) {
            h = 0;
          } else if (max === r && g >= b) {
            h = 60 * ((g - b) / d);
          } else if (max === r && g < b) {
            h = 60 * ((g - b) / d) + 360;
          } else if (max === g) {
            h = 60 * ((b - r) / d) + 120;
          } else if (max === b) {
            h = 60 * ((r - g) / d) + 240;
          }
          l = (max + min) / 2;
          if (l === 0 || max === min) {
            s = 0;
          } else if (0 < l && l <= 0.5) {
            s = d / (2 * l);
          } else if (l > 0.5) {
            s = d / (2 - 2 * l);
          }
          data[n] && (a = data[n]);

          if (i < 0.5) {
            s = (s * i) / 0.5;
          } else if (i > 0.5) {
            s = 2 * s + 2 * i - (s * i) / 0.5 - 1;
          }

          if (s === 0) {
            r = g = b = Math.round(l * 255);
          } else {
            if (l < 0.5) {
              q = l * (1 + s);
            } else if (l >= 0.5) {
              q = l + s - l * s;
            }
            p = 2 * l - q;
            hK = h / 360;
            tR = hK + 1 / 3;
            tG = hK;
            tB = hK - 1 / 3;
            let correctRGB = (t) => {
              if (t < 0) {
                return t + 1.0;
              }
              if (t > 1) {
                return t - 1.0;
              }
              return t;
            };
            let createRGB = (t) => {
              if (t < 1 / 6) {
                return p + (q - p) * 6 * t;
              } else if (t >= 1 / 6 && t < 1 / 2) {
                return q;
              } else if (t >= 1 / 2 && t < 2 / 3) {
                return p + (q - p) * 6 * (2 / 3 - t);
              }
              return p;
            };
            r = tR = Math.round(createRGB(correctRGB(tR)) * 255);
            g = tG = Math.round(createRGB(correctRGB(tG)) * 255);
            b = tB = Math.round(createRGB(correctRGB(tB)) * 255);
          }
          a && (target[n] = a);
          target[n - 3] = r;
          target[n - 2] = g;
          target[n - 1] = b;
        }
      }
      let prvX = this.prvX,
        prvY = this.prvY,
        prvWidth = this.prvWidth,
        prvHeight = this.prvHeight;

      this.ctxCanvasPrv.setFillStyle("black");
      this.ctxCanvasPrv.fillRect(prvX, prvY, prvWidth, prvHeight);
      this.ctxCanvasPrv.draw(true);

      // #ifdef APP-PLUS||H5
      prvX *= this.pixelRatio;
      prvY *= this.pixelRatio;
      prvWidth *= this.pixelRatio;
      prvHeight *= this.pixelRatio;
      // #endif
      uni.canvasPutImageData(
        {
          canvasId: "prv-canvas",
          x: prvX,
          y: prvY,
          width: prvWidth,
          height: prvHeight,
          data: target,
          fail() {
            uni.showToast({
              title: "error_put",
              duration: 2000,
            });
          },
          complete() {
            uni.hideLoading();
          },
        },
        this
      );
    },
    btop(base64) {
      return new Promise(function (resolve, reject) {
        var arr = base64.split(","),
          mime = arr[0].match(/:(.*?);/)[1],
          bstr = atob(arr[1]),
          n = bstr.length,
          u8arr = new Uint8Array(n);
        while (n--) {
          u8arr[n] = bstr.charCodeAt(n);
        }
        return resolve(
          (window.URL || window.webkitURL).createObjectURL(
            new Blob([u8arr], { type: mime })
          )
        );
      });
    },
  },
};
</script>

<style>
.my-canvas {
  display: flex;
  position: fixed !important;
  background: #000000;
  left: 0;
  z-index: 100000;
  width: 100%;
}
.my-avatar {
  width: 80upx;
  height: 80upx;
  border-radius: 100%;
}
.oper-canvas {
  display: flex;
  position: fixed !important;
  left: 0;
  z-index: 100001;
  width: 100%;
}
.prv-canvas {
  display: flex;
  position: fixed !important;
  background: #000000;
  left: 0;
  z-index: 200000;
  width: 100%;
}
.oper-wrapper {
  height: 50px;
  position: fixed !important;
  box-sizing: border-box;
  border: 1px solid #f1f1f1;
  background: #ffffff;
  width: 100%;
  left: 0;
  bottom: 0;
  z-index: 100009;
  flex-direction: row;
}
.oper {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 10upx 20upx;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  align-self: center;
}
.btn-wrapper {
  display: flex;
  flex-direction: row;
  /* #ifndef H5 */
  flex-grow: 1;
  /* #endif */
  /* #ifdef H5 */
  height: 50px;
  /* #endif */
  justify-content: space-between;
}
.btn-wrapper view {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #333;
  border: 1px solid #f1f1f1;
  border-radius: 6%;
}
.hover {
  background: #f1f1f1;
  border-radius: 6%;
}
.clr-wrapper {
  display: flex;
  flex-direction: row;
  flex-grow: 1;
}
.clr-wrapper view {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #333;
  border: 1px solid #f1f1f1;
  border-radius: 6%;
}
.my-slider {
  flex-grow: 1;
}
</style>
