1 files changed, 0 insertions, 188 deletions
diff --git a/examples/go-dashboard/src/github.com/mum4k/termdash/private/canvas/buffer/buffer.go b/examples/go-dashboard/src/github.com/mum4k/termdash/private/canvas/buffer/buffer.go
deleted file mode 100644
index 5c21dd0ba..000000000
--- a/examples/go-dashboard/src/github.com/mum4k/termdash/private/canvas/buffer/buffer.go
+++ /dev/null
@@ -1,188 +0,0 @@
-// Copyright 2018 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Package buffer implements a 2-D buffer of cells.
-package buffer
-
-import (
-	"fmt"
-	"image"
-
-	"github.com/mum4k/termdash/cell"
-	"github.com/mum4k/termdash/private/area"
-	"github.com/mum4k/termdash/private/runewidth"
-)
-
-// NewCells breaks the provided text into cells and applies the options.
-func NewCells(text string, opts ...cell.Option) []*Cell {
-	var res []*Cell
-	for _, r := range text {
-		res = append(res, NewCell(r, opts...))
-	}
-	return res
-}
-
-// Cell represents a single cell on the terminal.
-type Cell struct {
-	// Rune is the rune stored in the cell.
-	Rune rune
-
-	// Opts are the cell options.
-	Opts *cell.Options
-}
-
-// String implements fmt.Stringer.
-func (c *Cell) String() string {
-	return fmt.Sprintf("{%q}", c.Rune)
-}
-
-// NewCell returns a new cell.
-func NewCell(r rune, opts ...cell.Option) *Cell {
-	return &Cell{
-		Rune: r,
-		Opts: cell.NewOptions(opts...),
-	}
-}
-
-// Copy returns a copy the cell.
-func (c *Cell) Copy() *Cell {
-	return &Cell{
-		Rune: c.Rune,
-		Opts: cell.NewOptions(c.Opts),
-	}
-}
-
-// Apply applies the provided options to the cell.
-func (c *Cell) Apply(opts ...cell.Option) {
-	for _, opt := range opts {
-		opt.Set(c.Opts)
-	}
-}
-
-// Buffer is a 2-D buffer of cells.
-// The axes increase right and down.
-// Uninitialized buffer is invalid, use New to create an instance.
-// Don't set cells directly, use the SetCell method instead which safely
-// handles limits and wide unicode characters.
-type Buffer [][]*Cell
-
-// New returns a new Buffer of the provided size.
-func New(size image.Point) (Buffer, error) {
-	if size.X <= 0 {
-		return nil, fmt.Errorf("invalid buffer width (size.X): %d, must be a positive number", size.X)
-	}
-	if size.Y <= 0 {
-		return nil, fmt.Errorf("invalid buffer height (size.Y): %d, must be a positive number", size.Y)
-	}
-
-	b := make([][]*Cell, size.X)
-	for col := range b {
-		b[col] = make([]*Cell, size.Y)
-		for row := range b[col] {
-			b[col][row] = NewCell(0)
-		}
-	}
-	return b, nil
-}
-
-// SetCell sets the rune of the specified cell in the buffer. Returns the
-// number of cells the rune occupies, wide runes can occupy multiple cells when
-// printed on the terminal. See http://www.unicode.org/reports/tr11/.
-// Use the options to specify which attributes to modify, if an attribute
-// option isn't specified, the attribute retains its previous value.
-func (b Buffer) SetCell(p image.Point, r rune, opts ...cell.Option) (int, error) {
-	partial, err := b.IsPartial(p)
-	if err != nil {
-		return -1, err
-	}
-	if partial {
-		return -1, fmt.Errorf("cannot set rune %q at point %v, it is a partial cell occupied by a wide rune in the previous cell", r, p)
-	}
-
-	remW, err := b.RemWidth(p)
-	if err != nil {
-		return -1, err
-	}
-	rw := runewidth.RuneWidth(r)
-	if rw == 0 {
-		// Even if the rune is invisible, like the zero-value rune, it still
-		// occupies at least the target cell.
-		rw = 1
-	}
-	if rw > remW {
-		return -1, fmt.Errorf("cannot set rune %q of width %d at point %v, only have %d remaining cells at this line", r, rw, p, remW)
-	}
-
-	c := b[p.X][p.Y]
-	c.Rune = r
-	c.Apply(opts...)
-	return rw, nil
-}
-
-// IsPartial returns true if the cell at the specified point holds a part of a
-// full width rune from a previous cell. See
-// http://www.unicode.org/reports/tr11/.
-func (b Buffer) IsPartial(p image.Point) (bool, error) {
-	size := b.Size()
-	ar, err := area.FromSize(size)
-	if err != nil {
-		return false, err
-	}
-
-	if !p.In(ar) {
-		return false, fmt.Errorf("point %v falls outside of the area %v occupied by the buffer", p, ar)
-	}
-
-	if p.X == 0 && p.Y == 0 {
-		return false, nil
-	}
-
-	prevP := image.Point{p.X - 1, p.Y}
-	if prevP.X < 0 {
-		prevP = image.Point{size.X - 1, p.Y - 1}
-	}
-
-	prevR := b[prevP.X][prevP.Y].Rune
-	switch rw := runewidth.RuneWidth(prevR); rw {
-	case 0, 1:
-		return false, nil
-	case 2:
-		return true, nil
-	default:
-		return false, fmt.Errorf("buffer cell %v contains rune %q which has an unsupported rune with %d", prevP, prevR, rw)
-	}
-}
-
-// RemWidth returns the remaining width (horizontal row of cells) available
-// from and inclusive of the specified point.
-func (b Buffer) RemWidth(p image.Point) (int, error) {
-	size := b.Size()
-	ar, err := area.FromSize(size)
-	if err != nil {
-		return -1, err
-	}
-
-	if !p.In(ar) {
-		return -1, fmt.Errorf("point %v falls outside of the area %v occupied by the buffer", p, ar)
-	}
-	return size.X - p.X, nil
-}
-
-// Size returns the size of the buffer.
-func (b Buffer) Size() image.Point {
-	return image.Point{
-		len(b),
-		len(b[0]),
-	}
-}