From d7dc100dee17d09aa6be11b2ba96b4cfcb6b95f5 Mon Sep 17 00:00:00 2001
From: tengge1 <930372551@qq.com>
Date: Tue, 4 Jun 2019 21:20:13 +0800
Subject: [PATCH] Timeline

---
 ShadowEditor.UI/src/editor/EWorkspace.jsx |  5 +-
 ShadowEditor.UI/src/timeline/Timeline.jsx | 69 ++++++++++++++++++++++-
 2 files changed, 72 insertions(+), 2 deletions(-)

diff --git a/ShadowEditor.UI/src/editor/EWorkspace.jsx b/ShadowEditor.UI/src/editor/EWorkspace.jsx
index fc7cae7d..9fdba07a 100644
--- a/ShadowEditor.UI/src/editor/EWorkspace.jsx
+++ b/ShadowEditor.UI/src/editor/EWorkspace.jsx
@@ -14,6 +14,7 @@ import Toolbar from '../toolbar/Toolbar.jsx';
 import Button from '../form/Button.jsx';
 import Icon from '../form/IconButton.jsx';
 import ToolbarSeparator from '../toolbar/ToolbarSeparator.jsx';
+import Timeline from '../timeline/Timeline.jsx';
 
 /**
  * 工作区
@@ -77,7 +78,9 @@ class EWorkspace extends React.Component {
                     <Button color={'danger'}>Button 5</Button>
                 </Toolbar>
             </Panel>
-            <Panel title={'South'} region={'south'} split={true} style={{ height: '120px', border: 'none' }}></Panel>
+            <Panel title={'South'} region={'south'} split={true} style={{ height: '120px', border: 'none' }}>
+                <Timeline></Timeline>
+            </Panel>
             <Panel title={'West'} region={'west'} split={true} style={{ width: '200px', border: 'none' }}>
                 <Toolbar direction={'vertical'}>
                     <Icon icon={'select'}></Icon>
diff --git a/ShadowEditor.UI/src/timeline/Timeline.jsx b/ShadowEditor.UI/src/timeline/Timeline.jsx
index b412d323..b21bea5f 100644
--- a/ShadowEditor.UI/src/timeline/Timeline.jsx
+++ b/ShadowEditor.UI/src/timeline/Timeline.jsx
@@ -7,10 +7,77 @@ import PropTypes from 'prop-types';
  * @author tengge / https://github.com/tengge1
  */
 class Timeline extends React.Component {
+    constructor(props) {
+        super(props);
+    }
+
     render() {
         const { className, style } = this.props;
 
-        return <div className={classNames('Timeline', className)} style={style}></div>;
+        return <div className={classNames('Timeline', className)} style={style}>
+            <canvas></canvas>
+        </div>;
+    }
+
+    componentDidMount() {
+        return;
+        var duration = this.duration; // 持续秒数
+        var scale = this.scale; // 1秒像素数
+        var width = duration * scale; // 画布宽度
+        var scale5 = scale / 5; // 0.2秒像素数
+        var margin = 0; // 时间轴前后间距
+
+        this.dom.style.width = (width + margin * 2) + 'px';
+        this.dom.width = this.dom.clientWidth;
+
+        var context = this.dom.getContext('2d');
+
+        // 时间轴背景
+        context.fillStyle = '#eee';
+        context.fillRect(0, 0, this.dom.width, this.dom.height);
+
+        // 时间轴刻度
+        context.strokeStyle = '#555';
+        context.beginPath();
+
+        for (var i = margin; i <= width + margin; i += scale) { // 绘制每一秒
+            for (var j = 0; j < 5; j++) { // 绘制每个小格
+                if (j === 0) { // 长刻度
+                    context.moveTo(i + scale5 * j, 22);
+                    context.lineTo(i + scale5 * j, 30);
+                } else { // 短刻度
+                    context.moveTo(i + scale5 * j, 26);
+                    context.lineTo(i + scale5 * j, 30);
+                }
+            }
+        }
+
+        context.stroke();
+
+        // 时间轴文字
+        context.font = '12px Arial';
+        context.fillStyle = '#888'
+
+        for (var i = 0; i <= duration; i += 2) { // 对于每两秒
+            var minute = Math.floor(i / 60);
+            var second = Math.floor(i % 60);
+
+            var text = (minute > 0 ? minute + ':' : '') + ('0' + second).slice(-2);
+
+            if (i === 0) {
+                context.textAlign = 'left';
+            } else if (i === duration) {
+                context.textAlign = 'right';
+            } else {
+                context.textAlign = 'center';
+            }
+
+            context.fillText(text, margin + i * scale, 16);
+        }
+    }
+
+    componentWillUnmount() {
+
     }
 }