Author: LakeFox
Email: [email protected]
Date: Mon, 8 Apr 2024 14:51:56 -0500
cstyle/plugins/position/main.go
Added state
Commits
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Diff 
diff --git a/cstyle/plugins/position/main.go b/cstyle/plugins/position/main.go
index 3770baf..744759f 100644
--- a/cstyle/plugins/position/main.go
+++ b/cstyle/plugins/position/main.go
@@ -15,7 +15,4 @@ func Init() cstyle.Plugin {
-		Handler: func(n *element.Node, state *map[string]element.State) {
-			s := *state
-			self := s[n.Properties.Id]
-			parent := s[n.Parent.Properties.Id]
-
-			width, height := self.Width, self.Height
-			x, y := self.X, self.Y
+		Handler: func(n *element.Node) {
+			styleMap := n.Style
+			width, height := n.Properties.Computed["width"], n.Properties.Computed["height"]
+			x, y := n.Properties.X, n.Properties.Y
@@ -27,6 +24,5 @@ func Init() cstyle.Plugin {
-			if n.Style["position"] == "absolute" {
-				bas := utils.GetPositionOffsetNode(n)
-				base := s[bas.Properties.Id]
-				if n.Style["top"] != "" {
-					v, _ := utils.ConvertToPixels(n.Style["top"], self.EM, parent.Width)
-					y = v + base.Y
+			if styleMap["position"] == "absolute" {
+				base := utils.GetPositionOffsetNode(n)
+				if styleMap["top"] != "" {
+					v, _ := utils.ConvertToPixels(styleMap["top"], float32(n.Properties.EM), n.Parent.Properties.Computed["width"])
+					y = v + base.Properties.Y
@@ -35,3 +31,3 @@ func Init() cstyle.Plugin {
-				if n.Style["left"] != "" {
-					v, _ := utils.ConvertToPixels(n.Style["left"], self.EM, parent.Width)
-					x = v + base.X
+				if styleMap["left"] != "" {
+					v, _ := utils.ConvertToPixels(styleMap["left"], float32(n.Properties.EM), n.Parent.Properties.Computed["width"])
+					x = v + base.Properties.X
@@ -40,3 +36,3 @@ func Init() cstyle.Plugin {
-				if n.Style["right"] != "" {
-					v, _ := utils.ConvertToPixels(n.Style["right"], self.EM, parent.Width)
-					x = (base.Width - width) - v
+				if styleMap["right"] != "" {
+					v, _ := utils.ConvertToPixels(styleMap["right"], float32(n.Properties.EM), n.Parent.Properties.Computed["width"])
+					x = (base.Properties.Computed["width"] - width) - v
@@ -45,3 +41,3 @@ func Init() cstyle.Plugin {
-				if n.Style["bottom"] != "" {
-					v, _ := utils.ConvertToPixels(n.Style["bottom"], self.EM, parent.Width)
-					y = (base.Height - height) - v
+				if styleMap["bottom"] != "" {
+					v, _ := utils.ConvertToPixels(styleMap["bottom"], float32(n.Properties.EM), n.Parent.Properties.Computed["width"])
+					y = (base.Properties.Computed["height"] - height) - v
@@ -54,5 +50,4 @@ func Init() cstyle.Plugin {
-							sib := n.Parent.Children[i-1]
-							sibling := s[sib.Properties.Id]
-							if n.Style["display"] == "inline" {
-								if sib.Style["display"] == "inline" {
-									y = sibling.Y
+							sibling := n.Parent.Children[i-1]
+							if styleMap["display"] == "inline" {
+								if sibling.Style["display"] == "inline" {
+									y = sibling.Properties.Y
@@ -60 +55 @@ func Init() cstyle.Plugin {
-									y = sibling.Y + sibling.Height
+									y = sibling.Properties.Y + sibling.Properties.Computed["height"]
@@ -63 +58 @@ func Init() cstyle.Plugin {
-								y = sibling.Y + sibling.Height
+								y = sibling.Properties.Y + sibling.Properties.Computed["height"]
@@ -67,5 +62,4 @@ func Init() cstyle.Plugin {
-					} else if n.Style["display"] != "inline" {
-						mc := utils.GetMP(v, "margin")
-						pc := utils.GetMP(v, "padding")
-						vState := s[v.Properties.Id]
-						y += mc.Top + mc.Bottom + pc.Top + pc.Bottom + vState.Height
+					} else if styleMap["display"] != "inline" {
+						mc := utils.GetMP(*n, "margin")
+						p := utils.GetMP(*n, "padding")
+						y += mc.Top + mc.Bottom + p.Top + p.Bottom + v.Properties.Computed["height"]
@@ -93,4 +87,4 @@ func Init() cstyle.Plugin {
-			self.X = x
-			self.Y = y
-			self.Width = width
-			self.Height = height
+			n.Properties.X = x
+			n.Properties.Y = y
+			n.Properties.Computed["width"] = width
+			n.Properties.Computed["height"] = height

package position

import (
	"gui/cstyle"
	"gui/element"
	"gui/utils"
)

func Init() cstyle.Plugin {
	return cstyle.Plugin{
		Styles: map[string]string{
			"position": "*",
		},
		Level: 0,
		Handler: func(n *element.Node, state *map[string]element.State) {
			s := *state
			self := s[n.Properties.Id]
			parent := s[n.Parent.Properties.Id]

			width, height := self.Width, self.Height
			x, y := self.X, self.Y

			var top, left, right, bottom bool = false, false, false, false

			m := utils.GetMP(*n, "margin")

			if n.Style["position"] == "absolute" {
				bas := utils.GetPositionOffsetNode(n)
				base := s[bas.Properties.Id]
				if n.Style["top"] != "" {
					v, _ := utils.ConvertToPixels(n.Style["top"], self.EM, parent.Width)
					y = v + base.Y
					top = true
				}
				if n.Style["left"] != "" {
					v, _ := utils.ConvertToPixels(n.Style["left"], self.EM, parent.Width)
					x = v + base.X
					left = true
				}
				if n.Style["right"] != "" {
					v, _ := utils.ConvertToPixels(n.Style["right"], self.EM, parent.Width)
					x = (base.Width - width) - v
					right = true
				}
				if n.Style["bottom"] != "" {
					v, _ := utils.ConvertToPixels(n.Style["bottom"], self.EM, parent.Width)
					y = (base.Height - height) - v
					bottom = true
				}
			} else {
				for i, v := range n.Parent.Children {
					if v.Properties.Id == n.Properties.Id {
						if i-1 > 0 {
							sib := n.Parent.Children[i-1]
							sibling := s[sib.Properties.Id]
							if n.Style["display"] == "inline" {
								if sib.Style["display"] == "inline" {
									y = sibling.Y
								} else {
									y = sibling.Y + sibling.Height
								}
							} else {
								y = sibling.Y + sibling.Height
							}
						}
						break
					} else if n.Style["display"] != "inline" {
						mc := utils.GetMP(v, "margin")
						pc := utils.GetMP(v, "padding")
						vState := s[v.Properties.Id]
						y += mc.Top + mc.Bottom + pc.Top + pc.Bottom + vState.Height
					}
				}
			}

			// Display modes need to be calculated here

			relPos := !top && !left && !right && !bottom

			if left || relPos {
				x += m.Left
			}
			if top || relPos {
				y += m.Top
			}
			if right {
				x -= m.Right
			}
			if bottom {
				y -= m.Bottom
			}

			self.X = x
			self.Y = y
			self.Width = width
			self.Height = height
		},
	}
}