mirror of https://github.com/mum4k/termdash.git
58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
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package container
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// draw.go contains logic to draw containers and the contained widgets.
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import (
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"errors"
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"github.com/mum4k/termdash/area"
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"github.com/mum4k/termdash/canvas"
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"github.com/mum4k/termdash/cell"
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"github.com/mum4k/termdash/draw"
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)
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// drawTree draws this container and all of its sub containers.
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func drawTree(c *Container) error {
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var errStr string
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preOrder(c, &errStr, visitFunc(func(c *Container) error {
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return drawCont(c)
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}))
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if errStr != "" {
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return errors.New(errStr)
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}
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return nil
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}
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// drawCont draws the container and its widget.
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// TODO(mum4k): Draw the widget.
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func drawCont(c *Container) error {
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// TODO(mum4k): Should be verified against the min size reported by the
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// widget.
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if us := c.usable(); us.Dx() < 1 || us.Dy() < 1 {
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return nil
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}
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cvs, err := canvas.New(c.area)
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if err != nil {
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return err
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}
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if c.hasBorder() {
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ar, err := area.FromSize(cvs.Size())
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if err != nil {
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return err
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}
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var opts []cell.Option
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if c.focusTracker.isActive(c) {
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opts = append(opts, cell.FgColor(c.opts.inherited.focusedColor))
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} else {
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opts = append(opts, cell.FgColor(c.opts.inherited.borderColor))
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}
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if err := draw.Box(cvs, ar, c.opts.border, opts...); err != nil {
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return err
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}
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}
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return cvs.Apply(c.term)
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}
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