/
gradientcomposite.go
80 lines (77 loc) · 2.45 KB
/
gradientcomposite.go
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
// Copyright 2017 The Walk Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"github.com/lxn/walk"
. "github.com/lxn/walk/declarative"
)
func main() {
MainWindow{
Title: "Walk GradientComposite Example",
MinSize: Size{400, 0},
Background: GradientBrush{
Vertexes: []walk.GradientVertex{
{X: 0, Y: 0, Color: walk.RGB(255, 255, 127)},
{X: 1, Y: 0, Color: walk.RGB(127, 191, 255)},
{X: 0.5, Y: 0.5, Color: walk.RGB(255, 255, 255)},
{X: 1, Y: 1, Color: walk.RGB(127, 255, 127)},
{X: 0, Y: 1, Color: walk.RGB(255, 127, 127)},
},
Triangles: []walk.GradientTriangle{
{0, 1, 2},
{1, 3, 2},
{3, 4, 2},
{4, 0, 2},
},
},
Layout: HBox{Margins: Margins{100, 100, 100, 100}},
Children: []Widget{
GradientComposite{
Border: true,
Vertical: Bind("verticalCB.Checked"),
Color1: Bind("rgb(c1RedSld.Value, c1GreenSld.Value, c1BlueSld.Value)"),
Color2: Bind("rgb(c2RedSld.Value, c2GreenSld.Value, c2BlueSld.Value)"),
Layout: HBox{},
Children: []Widget{
GroupBox{
Title: "Gradient Parameters",
Layout: VBox{},
Children: []Widget{
CheckBox{Name: "verticalCB", Text: "Vertical", Checked: true},
GroupBox{
Title: "Color1",
Layout: Grid{Columns: 2},
Children: []Widget{
Label{Text: "Red:"},
Slider{Name: "c1RedSld", Tracking: true, MaxValue: 255, Value: 95},
Label{Text: "Green:"},
Slider{Name: "c1GreenSld", Tracking: true, MaxValue: 255, Value: 191},
Label{Text: "Blue:"},
Slider{Name: "c1BlueSld", Tracking: true, MaxValue: 255, Value: 255},
},
},
GroupBox{
Title: "Color2",
Layout: Grid{Columns: 2},
Children: []Widget{
Label{Text: "Red:"},
Slider{Name: "c2RedSld", Tracking: true, MaxValue: 255, Value: 239},
Label{Text: "Green:"},
Slider{Name: "c2GreenSld", Tracking: true, MaxValue: 255, Value: 63},
Label{Text: "Blue:"},
Slider{Name: "c2BlueSld", Tracking: true, MaxValue: 255, Value: 0},
},
},
},
},
},
},
},
Functions: map[string]func(args ...interface{}) (interface{}, error){
"rgb": func(args ...interface{}) (interface{}, error) {
return walk.RGB(byte(args[0].(float64)), byte(args[1].(float64)), byte(args[2].(float64))), nil
},
},
}.Run()
}