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体验新版 GitCode,发现更多精彩内容 >>
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a3ea17e7
编写于
6月 13, 2017
作者:
A
Alex Dima
浏览文件
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浏览文件
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电子邮件补丁
差异文件
Do not paint minimap unless a line inside it has changed
上级
f601ee83
变更
1
隐藏空白更改
内联
并排
Showing
1 changed file
with
36 addition
and
5 deletion
+36
-5
src/vs/editor/browser/viewParts/minimap/minimap.ts
src/vs/editor/browser/viewParts/minimap/minimap.ts
+36
-5
未找到文件。
src/vs/editor/browser/viewParts/minimap/minimap.ts
浏览文件 @
a3ea17e7
...
@@ -614,10 +614,41 @@ export class Minimap extends ViewPart {
...
@@ -614,10 +614,41 @@ export class Minimap extends ViewPart {
this
.
_slider
.
setTop
(
layout
.
sliderTop
);
this
.
_slider
.
setTop
(
layout
.
sliderTop
);
this
.
_slider
.
setHeight
(
layout
.
sliderHeight
);
this
.
_slider
.
setHeight
(
layout
.
sliderHeight
);
this
.
_lastRenderData
=
this
.
renderLines
(
layout
);
}
private
renderLines
(
layout
:
MinimapLayout
):
RenderData
{
const
renderMinimap
=
this
.
_options
.
renderMinimap
;
const
startLineNumber
=
layout
.
startLineNumber
;
const
startLineNumber
=
layout
.
startLineNumber
;
const
endLineNumber
=
layout
.
endLineNumber
;
const
endLineNumber
=
layout
.
endLineNumber
;
const
minimapLineHeight
=
getMinimapLineHeight
(
renderMinimap
);
const
minimapLineHeight
=
getMinimapLineHeight
(
renderMinimap
);
// Check if nothing changed w.r.t. lines from last frame
if
(
this
.
_lastRenderData
)
{
const
_lastData
=
this
.
_lastRenderData
.
_get
();
const
lastStartLineNumber
=
_lastData
.
rendLineNumberStart
;
const
lastLines
=
_lastData
.
lines
;
const
lastLinesLength
=
lastLines
.
length
;
let
linesNeedPainting
=
false
;
for
(
let
lineNumber
=
startLineNumber
;
lineNumber
<=
endLineNumber
;
lineNumber
++
)
{
const
lastLineIndex
=
lineNumber
-
lastStartLineNumber
;
const
source_dy
=
(
lastLineIndex
>=
0
&&
lastLineIndex
<
lastLinesLength
?
lastLines
[
lastLineIndex
].
dy
:
-
1
);
if
(
source_dy
===
-
1
)
{
linesNeedPainting
=
true
;
break
;
}
}
if
(
!
linesNeedPainting
)
{
// Nice!! Nothing changed from last frame
return
new
RenderData
(
layout
,
_lastData
.
imageData
,
_lastData
.
lines
);
}
}
// Oh well!! We need to repaint some lines...
const
imageData
=
this
.
_getBuffer
();
const
imageData
=
this
.
_getBuffer
();
// Render untouched lines by using last rendered data.
// Render untouched lines by using last rendered data.
...
@@ -656,16 +687,16 @@ export class Minimap extends ViewPart {
...
@@ -656,16 +687,16 @@ export class Minimap extends ViewPart {
dy
+=
minimapLineHeight
;
dy
+=
minimapLineHeight
;
}
}
// Finally, paint to the canvas
const
ctx
=
this
.
_canvas
.
domNode
.
getContext
(
'
2d
'
);
ctx
.
putImageData
(
imageData
,
0
,
0
);
// Save rendered data for reuse on next frame if possible
// Save rendered data for reuse on next frame if possible
this
.
_lastRenderData
=
new
RenderData
(
return
new
RenderData
(
layout
,
layout
,
imageData
,
imageData
,
renderedLines
renderedLines
);
);
// Finally, paint to the canvas
const
ctx
=
this
.
_canvas
.
domNode
.
getContext
(
'
2d
'
);
ctx
.
putImageData
(
imageData
,
0
,
0
);
}
}
private
static
_renderUntouchedLines
(
private
static
_renderUntouchedLines
(
...
...
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