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Commit fbbeaea4
authored
Sep 18, 2023
by
Tianqing Liu
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feat: 使用水印组件
1 parent
6512da16
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25 additions
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61 deletions
h5/src/components/jPlayer/index.vue
h5/src/components/jPlayer/index.vue
View file @
fbbeaea
<
template
>
<div
ref=
"jPlayer"
class=
"j-player"
></div>
<div
ref=
"jPlayer"
class=
"j-player"
>
<watermark-layer
v-if=
"watermark.text"
ref=
"watermarkLayer"
:width=
"watermark.width"
:height=
"watermark.height"
:text=
"watermark.text"
/>
</div>
</
template
>
<
script
>
import
WatermarkLayer
from
'./watermark.vue'
export
default
{
name
:
'JPlayer'
,
components
:
{
WatermarkLayer
,
},
props
:
{
type
:
{
type
:
String
,
...
...
@@ -19,7 +31,7 @@ export default {
type
:
Array
,
default
:
null
,
},
watermark
:
{
watermark
Text
:
{
type
:
String
,
default
:
''
,
},
...
...
@@ -36,6 +48,11 @@ export default {
},
data
()
{
return
{
watermark
:
{
width
:
0
,
height
:
0
,
text
:
''
,
},
// eslint-disable-next-line
_iframeEl
:
null
,
}
...
...
@@ -110,7 +127,7 @@ export default {
},
iframeReady
(
event
)
{
console
.
log
(
'iframeReady'
,
event
.
target
);
if
(
this
.
watermark
&&
event
.
target
)
{
if
(
this
.
watermark
Text
&&
event
.
target
)
{
const
width
=
event
.
target
.
offsetWidth
;
const
height
=
event
.
target
.
offsetHeight
;
this
.
createWatermark
(
width
,
height
);
...
...
@@ -118,62 +135,9 @@ export default {
},
createWatermark
(
width
,
height
)
{
console
.
log
(
'createWatermark'
,
width
,
height
);
const
canvas
=
this
.
createCanvas
(
width
,
height
,
this
.
watermark
);
const
commonIframeEl
=
this
.
$refs
.
jPlayer
;
if
(
commonIframeEl
)
{
commonIframeEl
.
appendChild
(
canvas
);
}
},
createCanvas
(
cwidth
,
cheight
,
watermark
,
image
)
{
const
canvas
=
document
.
createElement
(
'canvas'
);
canvas
.
width
=
cwidth
;
canvas
.
height
=
cheight
-
40
;
// 40为底部工具条
canvas
.
className
=
'watermark'
;
console
.
log
(
'createCanvas'
,
canvas
);
// 获取 Canvas 上下文
const
ctx
=
canvas
.
getContext
(
'2d'
);
// 在 Canvas 上绘制原始图片
if
(
image
)
{
ctx
.
drawImage
(
image
,
0
,
0
);
}
// 绘制水印文本
ctx
.
font
=
'24px Arial'
;
ctx
.
fillStyle
=
'rgba(255, 255, 255, 0.5)'
;
// 定义水印内容
// TODO: 此部分应动态获取
const
watermarkText
=
watermark
;
// 定义水印间隔和边距
const
watermarkIntervalX
=
300
;
// 水印之间的水平间隔
const
watermarkIntervalY
=
300
;
// 水印之间的垂直间隔
const
watermarkMarginX
=
50
;
// 水印距离左边的边距
const
watermarkMarginY
=
180
;
// 水印距离顶部的边距
// 循环绘制水印
for
(
let
x
=
watermarkMarginX
;
x
<
canvas
.
width
;
x
+=
watermarkIntervalX
)
{
for
(
let
y
=
watermarkMarginY
;
y
<
canvas
.
height
;
y
+=
watermarkIntervalY
)
{
// 保存当前绘图状态以便恢复
ctx
.
save
();
// 将坐标原点移动到水印位置
ctx
.
translate
(
x
,
y
);
// 旋转文本
ctx
.
rotate
(
-
Math
.
PI
/
4
);
// 旋转-45度(以弧度表示)
// 绘制水印文本
ctx
.
fillText
(
watermarkText
,
0
,
0
);
// 恢复绘图状态
ctx
.
restore
();
}
}
return
canvas
;
this
.
watermark
.
width
=
width
;
this
.
watermark
.
height
=
height
;
this
.
watermark
.
text
=
this
.
watermarkText
;
},
formatDatetime
(
timestamp
)
{
return
parseInt
(
timestamp
/
1000
);
...
...
@@ -195,7 +159,7 @@ export default {
// 当图像加载完成后执行
image
.
onload
=
()
=>
{
// 创建一个 Canvas 元素
const
canvas
=
this
.
createCanvas
(
image
.
width
,
image
.
height
,
this
.
watermark
,
image
);
const
canvas
=
this
.
$refs
.
watermarkLayer
.
createCanvas
(
image
);
// 将带有水印的 Canvas 转换回 base64
const
watermarkedBase64
=
canvas
.
toDataURL
(
'image/png'
);
...
...
@@ -237,7 +201,7 @@ export default {
height
:
100%
;
width
:
100%
;
position
:
relative
;
/deep/canvas.watermark
{
::v-deep(.watermark-layer)
{
position
:
absolute
;
top
:
0px
;
left
:
0px
;
...
...
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