From 95515ee4a8866a9294e169e6213b5e58ed78009b Mon Sep 17 00:00:00 2001
From: "5684185+vsariola@users.noreply.github.com"
 <5684185+vsariola@users.noreply.github.com>
Date: Mon, 7 Jul 2025 16:53:21 +0300
Subject: [PATCH] drafting

---
 tracker/gioui/theme.go       | 17 +++++++++--------
 tracker/gioui/theme.yml      |  1 +
 tracker/gioui/unit_editor.go | 21 ++++++++++++++++++---
 tracker/params.go            | 31 +++++++++++++++++++++++++++++--
 4 files changed, 57 insertions(+), 13 deletions(-)

diff --git a/tracker/gioui/theme.go b/tracker/gioui/theme.go
index 3d97691..cdaabda 100644
--- a/tracker/gioui/theme.go
+++ b/tracker/gioui/theme.go
@@ -85,14 +85,15 @@ type Theme struct {
 		}
 	}
 	UnitEditor struct {
-		Name      LabelStyle
-		Chooser   LabelStyle
-		Hint      LabelStyle
-		WireColor color.NRGBA
-		WireHint  LabelStyle
-		Width     unit.Dp
-		Height    unit.Dp
-		UnitList  struct {
+		Name        LabelStyle
+		Chooser     LabelStyle
+		Hint        LabelStyle
+		WireColor   color.NRGBA
+		WireHint    LabelStyle
+		Width       unit.Dp
+		Height      unit.Dp
+		RackComment LabelStyle
+		UnitList    struct {
 			LabelWidth unit.Dp
 			Name       LabelStyle
 			Disabled   LabelStyle
diff --git a/tracker/gioui/theme.yml b/tracker/gioui/theme.yml
index 034dec3..f9c4bf3 100644
--- a/tracker/gioui/theme.yml
+++ b/tracker/gioui/theme.yml
@@ -221,6 +221,7 @@ uniteditor:
       { textsize: 12, color: *disabled, font: { style: 1 }, alignment: 2 }
     error: *errorcolor
   divider: { r: 255, g: 255, b: 255, a: 5 }
+  rackcomment: { textsize: 16, color: *mediumemphasis, shadowcolor: *black }
 knob:
   diameter: 36
   value: { textsize: 12, color: *highemphasis }
diff --git a/tracker/gioui/unit_editor.go b/tracker/gioui/unit_editor.go
index 847e76e..7609318 100644
--- a/tracker/gioui/unit_editor.go
+++ b/tracker/gioui/unit_editor.go
@@ -5,6 +5,7 @@ import (
 	"image"
 	"io"
 	"math"
+	"time"
 
 	"gioui.org/f32"
 	"gioui.org/io/clipboard"
@@ -137,6 +138,12 @@ func (pe *UnitEditor) update(gtx C, t *Tracker) {
 			case key.NameDeleteBackward, key.NameDeleteForward:
 				t.Model.Params().Table().Clear()
 			}
+			c := t.Model.Params().Cursor()
+			if c.X >= 0 && c.Y >= 0 && c.Y < len(pe.Parameters) && c.X < len(pe.Parameters[c.Y]) {
+				ta := &pe.Parameters[c.Y][c.X].knobState.tipArea
+				ta.Appear(gtx.Now)
+				ta.Exit.SetTarget(gtx.Now.Add(ta.ExitDuration))
+			}
 		}
 	}
 	for {
@@ -191,7 +198,7 @@ func (pe *UnitEditor) layoutRack(gtx C) D {
 	columnTitleHeight := gtx.Dp(0)
 	for i := range pe.Parameters {
 		for len(pe.Parameters[i]) < width {
-			pe.Parameters[i] = append(pe.Parameters[i], &ParameterState{})
+			pe.Parameters[i] = append(pe.Parameters[i], &ParameterState{knobState: KnobState{tipArea: TipArea{ExitDuration: time.Second * 2}}})
 		}
 	}
 	coltitle := func(gtx C, x int) D {
@@ -242,6 +249,15 @@ func (pe *UnitEditor) layoutRack(gtx C) D {
 		param := t.Model.Params().Item(point)
 		paramStyle := t.ParamStyle(param, t.Theme, pe.Parameters[y][x], pe.paramTable.Table.Cursor() == point)
 		paramStyle.Layout(gtx)
+		comment := t.Units().Item(y).Comment
+		if comment != "" && x == t.Model.Params().RowWidth(y) {
+			label := Label(t.Theme, &t.Theme.UnitEditor.RackComment, comment)
+			return layout.W.Layout(gtx, func(gtx C) D {
+				gtx.Constraints.Max.X = 1e6
+				gtx.Constraints.Min.Y = 0
+				return label.Layout(gtx)
+			})
+		}
 		return D{Size: image.Pt(gtx.Constraints.Max.X, gtx.Constraints.Max.Y)}
 	}
 	table := FilledScrollTable(t.Theme, pe.paramTable)
@@ -368,10 +384,9 @@ func mulVec(a, b f32.Point) f32.Point {
 
 func (pe *UnitEditor) layoutFooter(gtx C) D {
 	t := TrackerFromContext(gtx)
-	st := t.Units().SelectedType()
 	text := "Choose unit type"
 	if !t.UnitSearching().Value() {
-		text = pe.caser.String(st)
+		text = pe.caser.String(t.Units().SelectedType())
 	}
 	hintText := Label(t.Theme, &t.Theme.UnitEditor.Hint, text)
 	deleteUnitBtn := ActionIconBtn(t.DeleteUnit(), t.Theme, pe.DeleteUnitBtn, icons.ActionDelete, "Delete unit (Ctrl+Backspace)")
diff --git a/tracker/params.go b/tracker/params.go
index e473085..cb5d337 100644
--- a/tracker/params.go
+++ b/tracker/params.go
@@ -175,6 +175,12 @@ func (pt *Params) Width() int {
 	}
 	return pt.derived.patch[pt.d.InstrIndex].paramsWidth
 }
+func (pt *Params) RowWidth(y int) int {
+	if pt.d.InstrIndex < 0 || pt.d.InstrIndex >= len(pt.derived.patch) || y < 0 || y >= len(pt.derived.patch[pt.d.InstrIndex].params) {
+		return 0
+	}
+	return len(pt.derived.patch[pt.d.InstrIndex].params[y])
+}
 func (pt *Params) Height() int { return (*Model)(pt).Units().Count() }
 func (pt *Params) MoveCursor(dx, dy int) (ok bool) {
 	p := pt.Cursor()
@@ -260,8 +266,29 @@ func (pt *Params) unmarshalAtCursor(data []byte) (ret bool) {
 	}
 	return ret
 }
-func (pt *Params) unmarshalRange(rect Rect, data []byte) (ok bool) {
-	panic("NOT IMPLEMENTED")
+func (pt *Params) unmarshalRange(rect Rect, data []byte) (ret bool) {
+	table, ok := pt.unmarshal(data)
+	if !ok {
+		return false
+	}
+	if len(table.Params) == 0 || len(table.Params[0]) == 0 {
+		return false
+	}
+	width := rect.BottomRight.X - rect.TopLeft.X + 1
+	height := rect.BottomRight.Y - rect.TopLeft.Y + 1
+	if len(table.Params) < width {
+		return false
+	}
+	for x := 0; x < width; x++ {
+		for y := 0; y < height; y++ {
+			if len(table.Params[0]) < height {
+				return false
+			}
+			p := pt.Item(Point{x + rect.TopLeft.X, y + rect.TopLeft.Y})
+			ret = p.SetValue(table.Params[x][y]) || ret
+		}
+	}
+	return ret
 }
 func (pt *Params) change(kind string, severity ChangeSeverity) func() {
 	return (*Model)(pt).change(kind, PatchChange, severity)