1 files changed, 157 insertions, 0 deletions
diff --git a/vendor/maunium.net/go/tview/frame.go b/vendor/maunium.net/go/tview/frame.go
new file mode 100644
index 0000000..47455a2
--- /dev/null
+++ b/vendor/maunium.net/go/tview/frame.go
@@ -0,0 +1,157 @@
+package tview
+
+import (
+	"maunium.net/go/tcell"
+)
+
+// frameText holds information about a line of text shown in the frame.
+type frameText struct {
+	Text   string      // The text to be displayed.
+	Header bool        // true = place in header, false = place in footer.
+	Align  int         // One of the Align constants.
+	Color  tcell.Color // The text color.
+}
+
+// Frame is a wrapper which adds a border around another primitive. The top area
+// (header) and the bottom area (footer) may also contain text.
+//
+// See https://github.com/rivo/tview/wiki/Frame for an example.
+type Frame struct {
+	*Box
+
+	// The contained primitive.
+	primitive Primitive
+
+	// The lines of text to be displayed.
+	text []*frameText
+
+	// Border spacing.
+	top, bottom, header, footer, left, right int
+}
+
+// NewFrame returns a new frame around the given primitive. The primitive's
+// size will be changed to fit within this frame.
+func NewFrame(primitive Primitive) *Frame {
+	box := NewBox()
+
+	f := &Frame{
+		Box:       box,
+		primitive: primitive,
+		top:       1,
+		bottom:    1,
+		header:    1,
+		footer:    1,
+		left:      1,
+		right:     1,
+	}
+
+	f.focus = f
+
+	return f
+}
+
+// AddText adds text to the frame. Set "header" to true if the text is to appear
+// in the header, above the contained primitive. Set it to false for it to
+// appear in the footer, below the contained primitive. "align" must be one of
+// the Align constants. Rows in the header are printed top to bottom, rows in
+// the footer are printed bottom to top. Note that long text can overlap as
+// different alignments will be placed on the same row.
+func (f *Frame) AddText(text string, header bool, align int, color tcell.Color) *Frame {
+	f.text = append(f.text, &frameText{
+		Text:   text,
+		Header: header,
+		Align:  align,
+		Color:  color,
+	})
+	return f
+}
+
+// Clear removes all text from the frame.
+func (f *Frame) Clear() *Frame {
+	f.text = nil
+	return f
+}
+
+// SetBorders sets the width of the frame borders as well as "header" and
+// "footer", the vertical space between the header and footer text and the
+// contained primitive (does not apply if there is no text).
+func (f *Frame) SetBorders(top, bottom, header, footer, left, right int) *Frame {
+	f.top, f.bottom, f.header, f.footer, f.left, f.right = top, bottom, header, footer, left, right
+	return f
+}
+
+// Draw draws this primitive onto the screen.
+func (f *Frame) Draw(screen tcell.Screen) {
+	f.Box.Draw(screen)
+
+	// Calculate start positions.
+	x, top, width, height := f.GetInnerRect()
+	bottom := top + height - 1
+	x += f.left
+	top += f.top
+	bottom -= f.bottom
+	width -= f.left + f.right
+	if width <= 0 || top >= bottom {
+		return // No space left.
+	}
+
+	// Draw text.
+	var rows [6]int // top-left, top-center, top-right, bottom-left, bottom-center, bottom-right.
+	topMax := top
+	bottomMin := bottom
+	for _, text := range f.text {
+		// Where do we place this text?
+		var y int
+		if text.Header {
+			y = top + rows[text.Align]
+			rows[text.Align]++
+			if y >= bottomMin {
+				continue
+			}
+			if y+1 > topMax {
+				topMax = y + 1
+			}
+		} else {
+			y = bottom - rows[3+text.Align]
+			rows[3+text.Align]++
+			if y <= topMax {
+				continue
+			}
+			if y-1 < bottomMin {
+				bottomMin = y - 1
+			}
+		}
+
+		// Draw text.
+		Print(screen, text.Text, x, y, width, text.Align, text.Color)
+	}
+
+	// Set the size of the contained primitive.
+	if topMax > top {
+		top = topMax + f.header
+	}
+	if bottomMin < bottom {
+		bottom = bottomMin - f.footer
+	}
+	if top > bottom {
+		return // No space for the primitive.
+	}
+	f.primitive.SetRect(x, top, width, bottom+1-top)
+
+	// Finally, draw the contained primitive.
+	f.primitive.Draw(screen)
+}
+
+// Focus is called when this primitive receives focus.
+func (f *Frame) Focus(delegate func(p Primitive)) {
+	delegate(f.primitive)
+}
+
+// HasFocus returns whether or not this primitive has focus.
+func (f *Frame) HasFocus() bool {
+	focusable, ok := f.primitive.(Focusable)
+	if ok {
+		return focusable.HasFocus()
+	}
+	return false
+}