69 lines
1.6 KiB
Go
69 lines
1.6 KiB
Go
package tui
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import (
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"github.com/lixenwraith/terminal"
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)
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// PaneOpts configures pane rendering
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type PaneOpts struct {
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Title string
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Border LineType
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BorderFg terminal.RGB
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Bg terminal.RGB
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TitleFg terminal.RGB
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}
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// Pane draws bordered pane with optional title, returns content region
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// Content region is inside border, below title row if present
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func (r Region) Pane(opts PaneOpts) Region {
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if r.W < 3 || r.H < 3 {
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return r.Sub(1, 1, 0, 0)
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}
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// Fill background
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r.Fill(opts.Bg)
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// Draw border
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r.Box(opts.Border, opts.BorderFg)
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// Title on top edge
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headerH := 0
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if opts.Title != "" {
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headerH = 1
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title := " " + opts.Title + " "
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if RuneLen(title) > r.W-4 {
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title = Truncate(title, r.W-4)
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}
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x := 2
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for i, ch := range title {
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if x+i >= r.W-1 {
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break
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}
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r.Cell(x+i, 0, ch, opts.TitleFg, opts.Bg, terminal.AttrBold)
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}
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}
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// Return content region (inside border, below title)
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return r.Sub(1, 1+headerH, r.W-2, r.H-2-headerH)
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}
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// TitledPane fills region with background, draws centered title at top, returns content region
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// Content region starts at row 1 with full width
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func (r Region) TitledPane(title string, titleFg, bg terminal.RGB) Region {
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r.Fill(bg)
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if title != "" && r.H > 0 {
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r.TextCenter(0, title, titleFg, bg, terminal.AttrBold)
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}
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if r.H <= 1 {
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return r.Sub(0, 0, r.W, 0)
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}
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return r.Sub(0, 1, r.W, r.H-1)
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}
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// TitledPaneFocused is TitledPane with focus-dependent background
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func (r Region) TitledPaneFocused(title string, titleFg, bg, focusBg terminal.RGB, focused bool) Region {
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if focused {
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bg = focusBg
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}
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return r.TitledPane(title, titleFg, bg)
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} |