Initial checkin from CRI-O repo

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>

1 files changed, 122 insertions, 0 deletions

diff --git a/vendor/github.com/buger/goterm/box.go b/vendor/github.com/buger/goterm/box.go
new file mode 100644
index 000000000..7df929d7d
--- /dev/null
+++ b/vendor/github.com/buger/goterm/box.go
@@ -0,0 +1,122 @@
+package goterm
+
+import (
+	"bytes"
+	"strings"
+)
+
+const DEFAULT_BORDER = "- │ ┌ ┐ └ ┘"
+
+// Box allows you to create independent parts of screen, with its own buffer and borders.
+// Can be used for creating modal windows
+//
+// Generates boxes likes this:
+// ┌--------┐
+// │hello   │
+// │world   │
+// │        │
+// └--------┘
+//
+type Box struct {
+	Buf *bytes.Buffer
+
+	Width  int
+	Height int
+
+	// To get even padding: PaddingX ~= PaddingY*4
+	PaddingX int
+	PaddingY int
+
+	// Should contain 6 border pieces separated by spaces
+	//
+	// Example border:
+	//   "- │ ┌ ┐ └ ┘"
+	Border string
+
+	Flags int // Not used now
+}
+
+// Create new Box.
+// Width and height can be relative:
+//
+//    // Create box with 50% with of current screen and 10 lines height
+//    box := tm.NewBox(50|tm.PCT, 10, 0)
+//
+func NewBox(width, height int, flags int) *Box {
+	width, height = GetXY(width, height)
+
+	box := new(Box)
+	box.Buf = new(bytes.Buffer)
+	box.Width = width
+	box.Height = height
+	box.Border = DEFAULT_BORDER
+	box.PaddingX = 1
+	box.PaddingY = 0
+	box.Flags = flags
+
+	return box
+}
+
+func (b *Box) Write(p []byte) (int, error) {
+	return b.Buf.Write(p)
+}
+
+// Render Box
+func (b *Box) String() (out string) {
+	borders := strings.Split(b.Border, " ")
+	lines := strings.Split(b.Buf.String(), "\n")
+
+	// Border + padding
+	prefix := borders[1] + strings.Repeat(" ", b.PaddingX)
+	suffix := strings.Repeat(" ", b.PaddingX) + borders[1]
+
+	offset := b.PaddingY + 1 // 1 is border width
+
+	// Content width without borders and padding
+	contentWidth := b.Width - (b.PaddingX+1)*2
+
+	for y := 0; y < b.Height; y++ {
+		var line string
+
+		switch {
+		// Draw borders for first line
+		case y == 0:
+			line = borders[2] + strings.Repeat(borders[0], b.Width-2) + borders[3]
+
+		// Draw borders for last line
+		case y == (b.Height - 1):
+			line = borders[4] + strings.Repeat(borders[0], b.Width-2) + borders[5]
+
+		// Draw top and bottom padding
+		case y <= b.PaddingY || y >= (b.Height-b.PaddingY):
+			line = borders[1] + strings.Repeat(" ", b.Width-2) + borders[1]
+
+		// Render content
+		default:
+			if len(lines) > y-offset {
+				line = lines[y-offset]
+			} else {
+				line = ""
+			}
+
+			if len(line) > contentWidth-1 {
+				// If line is too large limit it
+				line = line[0:contentWidth]
+			} else {
+				// If line is too small enlarge it by adding spaces
+				line = line + strings.Repeat(" ", contentWidth-len(line))
+			}
+
+			line = prefix + line + suffix
+		}
+
+		// Don't add newline for last element
+		if y != b.Height-1 {
+			line = line + "\n"
+		}
+
+		out += line
+	}
+
+	return out
+}