-
Notifications
You must be signed in to change notification settings - Fork 274
/
EditorLayout.re
93 lines (84 loc) · 2.41 KB
/
EditorLayout.re
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
/*
* EditorLayout.re
*
* Helper utilities for laying out the editor, based on measurements
*/
open Oni_Core;
type t = {
lineNumberWidthInPixels: float,
minimapWidthInPixels: int,
bufferWidthInPixels: float,
widthInCharacters: int,
bufferHeightInCharacters: int,
minimapHeightInCharacters: int,
};
let getLayout =
(
~pixelWidth: float,
~pixelHeight: float,
~isMinimapShown: bool,
~characterWidth: float,
~characterHeight: float,
~bufferLineCount: int,
(),
) => {
let lineNumberWidthInPixels =
LineNumber.getLineNumberPixelWidth(
~lines=bufferLineCount,
~fontPixelWidth=characterWidth,
(),
);
let availableWidthInPixels =
pixelWidth
-. lineNumberWidthInPixels
-. float_of_int(Constants.default.scrollBarThickness)
-. float_of_int(Constants.default.minimapPadding)
*. 2.;
let widthInCharacters =
if (isMinimapShown) {
/*
* We need to solve this equation to figure out how many characters we can show
* in both the main buffer and minimap:
*
* (c * characterWidth) + (c * minimapCharacterWidth) = availableWidthInPixels
* c * (characterWidth + minimapCharacterWidth) = availableWidthInPixels
*/
int_of_float(
availableWidthInPixels
/. (
characterWidth
+. float_of_int(Constants.default.minimapCharacterWidth)
),
);
} else {
int_of_float(availableWidthInPixels /. characterWidth);
};
let bufferWidthInPixels = characterWidth *. float_of_int(widthInCharacters);
let minimapWidthInPixels =
Constants.default.minimapCharacterWidth * widthInCharacters;
let bufferHeightInCharacters = int_of_float(pixelHeight /. characterHeight);
let minimapHeightInCharacters =
int_of_float(
pixelHeight
/. float_of_int(
Constants.default.minimapCharacterHeight
+ Constants.default.minimapLineSpacing,
),
);
let leftOverWidth =
pixelWidth
-. bufferWidthInPixels
-. float_of_int(minimapWidthInPixels)
-. lineNumberWidthInPixels
-. float_of_int(Constants.default.scrollBarThickness)
-. float_of_int(Constants.default.minimapPadding)
*. 2.;
{
lineNumberWidthInPixels,
minimapWidthInPixels,
bufferWidthInPixels: bufferWidthInPixels +. leftOverWidth,
widthInCharacters,
bufferHeightInCharacters,
minimapHeightInCharacters,
};
};