From 40ae9e2b4e4c2bf289b70fedaab32685a8d42e78 Mon Sep 17 00:00:00 2001
From: 闫增涛 <1829501689@qq.com>
Date: 星期四, 27 六月 2024 11:29:21 +0800
Subject: [PATCH] 涂色连线题控件优化
---
src/components/graffiti/index.vue | 75 ++++++++++++++++++++++++++++++++-----
1 files changed, 64 insertions(+), 11 deletions(-)
diff --git a/src/components/graffiti/index.vue b/src/components/graffiti/index.vue
index 6036583..11c1519 100644
--- a/src/components/graffiti/index.vue
+++ b/src/components/graffiti/index.vue
@@ -1,3 +1,4 @@
+<!-- 娑傝壊杩炵嚎棰樻帶浠� -->
<template>
<div class="page">
<div class="main">
@@ -5,7 +6,6 @@
<canvas
id="canvas"
:style="{
- backgroundImage: `url(${backgroundImage})`,
backgroundSize: 'cover',
backgroundPosition: 'center',
}"
@@ -38,7 +38,7 @@
return {
canvas: null,
context: null,
- painting: false,
+ painting: false, // 璁板綍鐘舵�侊紝榧犳爣鏄惁鍦ㄦ寜涓嬬姸鎬�
historyData: [], // 瀛樺偍鍘嗗彶鏁版嵁锛岀敤浜庢挙閿�
brushSize: 5, // 绗斿埛澶у皬
brushColor: "#000000", // 绗斿埛棰滆壊
@@ -73,13 +73,34 @@
this.backgroundImage = oldData
}
},
+ // watch:{
+ // backgroundImage:{
+ // handler(newValue) {
+ // if(newValue && this.context) {
+ // const imgData = new Image();
+ // // 鍒嗕袱绉嶆儏鍐碉紝鍒濇鐨勫浘鐗� 鐩存帴鐢ㄥ閮ㄩ摼鎺ワ紝闇�瑕佸姞璺ㄥ煙鍜屾椂闂存埑锛屼簩娆′繚瀛樼殑浣滀负鑳屾櫙鍒欎笉闇�瑕�
+ // const oldData = localStorage.getItem(this.config.activeBook.name + '-graffiti-' + this.page)
+ // if(oldData) {
+ // imgData.src = newValue
+ // } else {
+ // imgData.src = newValue + '?' + new Date().getTime();
+ // imgData.setAttribute('crossOrigin', '');
+ // }
+ // imgData.onload = () => {
+ // this.context.drawImage(imgData,0,0)
+ // }
+ // }
+ // }
+ // }
+ // },
methods: {
changeBackground(imgUrl) {
this.backgroundImage = imgUrl;
},
+ // 鍒濆鍖� 鐢诲竷锛岃缃ぇ灏忚儗鏅壊
initCanvas() {
const that = this
- function resetCanvas() {
+ const resetCanvas = () => {
const elPanel = document.getElementById("canvas_panel");
that.canvas.width = elPanel.clientWidth;
that.canvas.height = elPanel.clientHeight;
@@ -90,9 +111,22 @@
that.context.fillRect(0, 0, that.canvas.width, that.canvas.height);
that.context.fillStyle = "black";
that.getCanvasOffset(); // 鏇存柊鐢诲竷浣嶇疆
+ // 璁剧疆鐢诲竷鑳屾櫙鍥�
+ const imgData = new Image();
+ // 鍒嗕袱绉嶆儏鍐碉紝鍒濇鐨勫浘鐗� 鐩存帴鐢ㄥ閮ㄩ摼鎺ワ紝闇�瑕佸姞璺ㄥ煙鍜屾椂闂存埑锛屼簩娆′繚瀛樼殑浣滀负鑳屾櫙鍒欎笉闇�瑕�
+ const oldData = localStorage.getItem(this.config.activeBook.name + '-graffiti-' + this.page)
+ if(oldData) {
+ imgData.src = oldData
+ } else {
+ imgData.src = this.backgroundImage + '?' + new Date().getTime();
+ imgData.setAttribute('crossOrigin', '');
+ }
+ imgData.onload = () => {
+ this.context.drawImage(imgData,0,0)
+ }
}
-
resetCanvas();
+ // 鐩戝惉绐楀彛澶у皬 锛岀獥鍙ｆ敼鍙橀噸鏂版覆鏌撶敾甯�
window.addEventListener("resize", resetCanvas);
},
@@ -110,7 +144,7 @@
y: y - this.canvasOffset.top,
};
},
-
+ // 榧犳爣鎶捣鏂规硶
downCallback(event) {
// 鍏堜繚瀛樹箣鍓嶇殑鏁版嵁锛岀敤浜庢挙閿�鏃舵仮澶嶏紙缁樺埗鍓嶄繚瀛橈紝涓嶆槸缁樺埗鍚庡啀淇濆瓨锛�
const data = this.context.getImageData(
@@ -129,7 +163,7 @@
this.brushTool === "eraser" ? "#FFFFFF" : this.brushColor;
this.painting = true;
},
-
+ // 榧犳爣绉诲姩鏂规硶(璁＄畻鍧愭爣骞舵覆鏌撹建杩�)
moveCallback(event) {
if (!this.painting) {
return;
@@ -142,19 +176,21 @@
closePaint() {
this.painting = false;
},
+ // 閲嶆柊璁＄畻鐢诲竷鐨勫亸绉诲��
updateCanvasOffset() {
- this.getCanvasOffset(); // 閲嶆柊璁＄畻鐢诲竷鐨勫亸绉诲��
+ this.getCanvasOffset();
},
-
+ // 鏀瑰彉绗斿埛澶у皬
onChangeSize(size) {
this.brushSize = size;
},
+ // 鏀瑰彉绗斿埛棰滆壊
onChangeColor(color) {
this.brushColor = color;
},
+ // 淇濆瓨锛屾竻绌虹瓑鎸夐挳
onChangeTool(tool) {
this.brushTool = tool;
- console.log(tool);
switch (tool) {
case "clear":
this.toolClear();
@@ -167,16 +203,30 @@
break;
}
},
+ // 娓呯┖canvas鎵�鏈夊唴瀹�(鑳屾櫙鍥鹃櫎澶�)
toolClear() {
this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);
this.resetToolActive();
+ // 鏂板姞鍐呭锛屾竻绌哄悗灏嗚儗鏅浘鍐嶈缃笂鍘�
+ const imgData = new Image();
+ // 鍒嗕袱绉嶆儏鍐碉紝鍒濇鐨勫浘鐗� 鐩存帴鐢ㄥ閮ㄩ摼鎺ワ紝闇�瑕佸姞璺ㄥ煙鍜屾椂闂存埑锛屼簩娆′繚瀛樼殑浣滀负鑳屾櫙鍒欎笉闇�瑕�
+ const oldData = localStorage.getItem(this.config.activeBook.name + '-graffiti-' + this.page)
+ if(oldData) {
+ imgData.src = oldData
+ } else {
+ imgData.src = this.backgroundImage + '?' + new Date().getTime();
+ imgData.setAttribute('crossOrigin', '');
+ }
+ imgData.onload = () => {
+ this.context.drawImage(imgData,0,0)
+ }
},
- // 鍘熶繚瀛樻柟娉�
+ // 淇濆瓨鐢诲竷鑳屾櫙鍜屽垝绾垮埌鏈湴鏂规硶
toolSave() {
var imgData = this.canvas.toDataURL({format: 'png', quality:1, width:800,});
localStorage.setItem(this.config.activeBook.name + '-graffiti-' + this.page,imgData)
},
- // 淇濆瓨鏂规硶锛屼繚瀛樹负涓�寮犲浘鐗囧苟涓嬭浇
+ // 淇濆瓨涓轰竴寮犲浘鐗囧苟涓嬭浇鐨勬柟娉�
saveImgData() {
var link = document.createElement("a");
var imgData = this.canvas.toDataURL({format: 'png', quality:1, width:20000, height:4000});
@@ -196,11 +246,14 @@
return new Blob([u8arr], {type:mime});
}
},
+ // 杩斿洖涓婁竴姝ユ柟娉�(鎾ら攢)
toolUndo() {
+ //
if (this.historyData.length <= 0) {
this.resetToolActive();
return;
}
+ // 灏嗙敾鐨勪笂涓�姝ユ暟鎹啓鍏anvas 閲嶆柊娓叉煋
const lastIndex = this.historyData.length - 1;
this.context.putImageData(this.historyData[lastIndex], 0, 0);
this.historyData.pop();
--
Gitblit v1.9.1