Inline Plugin

# Init?(go)

 1package inline
 2
 3import (
 4	"gui/cstyle"
 5	"gui/element"
 6)
 7
 8func Init() cstyle.Plugin {
 9	return cstyle.Plugin{
10		Styles: map[string]string{
11			"display": "inline",
12		},
13		Level: 1,
14		Handler: func(n *element.Node, state *map[string]element.State) {
15			s := *state
16			self := s[n.Properties.Id]
17			parent := s[n.Parent.Properties.Id]
18			copyOfX := self.X
19			copyOfY := self.Y
20			xCollect := float32(0)
21			for i, v := range n.Parent.Children {
22				vState := s[v.Properties.Id]
23				if vState.Style["position"] != "absolute" {
24					if vState.Style["display"] != "inline" {
25						xCollect = 0
26					} else {
27						if v.Properties.Id == n.Properties.Id {
28							if self.X+xCollect+self.Width > ((parent.Width)-parent.Padding.Right)+parent.X && i > 0 {
29								// Break Node
30								sibling := s[n.Parent.Children[i-1].Properties.Id]
31								self.Y += sibling.Height
32								self.X = copyOfX
33							} else if i > 0 {
34								// Node did not break
35								self.X += xCollect
36							}
37							break
38						} else {
39							if vState.Style["display"] == "inline" {
40								if colliderDetection(vState, self) {
41									xCollect += vState.Width
42								} else {
43									xCollect = 0
44								}
45							}
46						}
47					}
48				}
49			}
50			propagateOffsets(n, copyOfX, copyOfY, self, state)
51			(*state)[n.Properties.Id] = self
52		},
53	}
54}
55
56func propagateOffsets(n *element.Node, copyOfX, copyOfY float32, self element.State, state *map[string]element.State) {
57	s := *state
58	for _, v := range n.Children {
59		vState := s[v.Properties.Id]
60		vState.X += self.X - copyOfX
61		vState.Y += self.Y - copyOfY
62		if len(v.Children) > 0 {
63			propagateOffsets(&v, copyOfX, copyOfY, self, state)
64		}
65		(*state)[v.Properties.Id] = vState
66	}
67}
68
69func colliderDetection(s1, s2 element.State) bool {
70	s1Min := s1.Y
71	s1Max := s1.Y + s1.Height
72	s2Min := s2.Y
73	s2Max := s2.Y + s2.Height
74	return s1Min > s2Min && s1Min < s2Max || s1Max > s2Min && s1Min < s2Max || s2Min > s1Min && s2Min < s1Max || s2Max > s1Min && s2Min < s1Max
75}