Detail panes: poster top right, title and facts left, plot below; sextant rendering

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

internal/ui/detail.go

@@ -8,39 +8,49 @@ import (
 )
 
 const (
-	coverRows    = 20 // poster height in terminal rows
 	minCoverRows = 6  // a smaller poster is not worth showing
+	minCoverCols = 8  //
 	minTextRows  = 10 // the poster never takes these rows from the text
 )
 
-// detailPane shows a poster above a text. The poster shrinks on short panes
-// and is dropped when the text would get too little room.
+// detailPane shows the details of one title: the head (title and facts) with
+// the poster to its right on top, and the plot below both. On panes too small
+// for the poster everything is one text.
 type detailPane struct {
-	*tview.Flex
-	app   *App
-	cover *coverView
-	text  *tview.TextView
+	*tview.Flex // column: top row, plot
+	app         *App
+	top         *tview.Flex // row: head, cover
+	head        *tview.TextView
+	cover       *coverView
+	plot        *tview.TextView
 
-	want      string // key of the poster that should be shown
-	hasCover  bool   // a poster (or its loading note) is part of the content
-	coverSize int    // rows currently given to the poster
+	text     detailText
+	want     string // key of the poster that should be shown
+	hasCover bool   // a poster (or its loading note) is part of the content
+	combined bool   // head and plot are shown together in the plot view
 }
 
 func newDetailPane(app *App) *detailPane {
 	d := &detailPane{
 		Flex:  tview.NewFlex().SetDirection(tview.FlexRow),
 		app:   app,
-		cover: newCoverView(),
-		text:  tview.NewTextView().SetDynamicColors(true).SetWordWrap(true),
+		top:   tview.NewFlex(),
+		head:  tview.NewTextView().SetDynamicColors(true).SetWordWrap(true),
+		cover: newCoverView(app.coverStyle),
+		plot:  tview.NewTextView().SetDynamicColors(true).SetWordWrap(true),
 	}
-	d.AddItem(d.cover, 0, 0, false).AddItem(d.text, 0, 1, false)
+	d.cover.SetBorderPadding(0, 0, 1, 0)
+	d.top.AddItem(d.head, 0, 1, false).AddItem(d.cover, 0, 0, false)
+	d.AddItem(d.top, 0, 0, false).AddItem(d.plot, 0, 1, false)
 	d.SetBorder(true).SetTitle(" Details ")
+	d.combined = true
 	return d
 }
 
 // Show displays the text and, if there is one, the poster.
-func (d *detailPane) Show(text string, ref coverRef) {
-	d.text.SetText(text).ScrollToBeginning()
+func (d *detailPane) Show(text detailText, ref coverRef) {
+	d.text = text
+	d.applyText()
 	if !d.app.covers || ref.fetch == nil {
 		d.want, d.hasCover = "", false
 		d.cover.setImage(nil)
@@ -63,20 +73,35 @@ func (d *detailPane) Show(text string, ref coverRef) {
 }
 
 // Clear empties the pane.
-func (d *detailPane) Clear() { d.Show("", coverRef{}) }
+func (d *detailPane) Clear() { d.Show(detailText{}, coverRef{}) }
+
+// applyText puts the texts into their views for the current layout.
+func (d *detailPane) applyText() {
+	if d.combined {
+		d.head.SetText("")
+		d.plot.SetText(d.text.String()).ScrollToBeginning()
+		return
+	}
+	d.head.SetText(d.text.head).ScrollToBeginning()
+	d.plot.SetText(d.text.plot).ScrollToBeginning()
+}
 
 func (d *detailPane) Draw(screen tcell.Screen) {
-	_, _, _, h := d.GetInnerRect()
-	rows := 0
+	_, _, w, h := d.GetInnerRect()
+	coverW, coverH := 0, 0
 	if d.hasCover {
-		rows = min(coverRows, h-minTextRows)
-		if rows < minCoverRows {
-			rows = 0
+		aw, ah := d.cover.aspect()
+		// At most 40% of the width, and the plot keeps its rows.
+		coverW, coverH = coverCells(aw, ah, w*2/5, h-minTextRows)
+		if coverH < minCoverRows || coverW < minCoverCols {
+			coverW, coverH = 0, 0
 		}
 	}
-	if rows != d.coverSize {
-		d.coverSize = rows
-		d.ResizeItem(d.cover, rows, 0)
+	if combined := coverW == 0; combined != d.combined {
+		d.combined = combined
+		d.applyText()
 	}
+	d.ResizeItem(d.top, coverH, 0)
+	d.top.ResizeItem(d.cover, coverW+1, 0) // +1: the padding left of the poster
 	d.Flex.Draw(screen)
 }