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authorDrew DeVault <sir@cmpwn.com>2018-02-26 22:54:39 -0500
committerDrew DeVault <sir@cmpwn.com>2018-02-26 22:54:39 -0500
commit1418e1b9dc41d8f69bccb8de0fe0f1fb6835ce11 (patch)
tree4ae8b3373fdadb6dd3e7b8c8789cf938522b8f8a /ui/context.go
parent661e3ec2a4dd97d4a8a8eab4f281b088770a6af2 (diff)
Split UI library and widgets
Diffstat (limited to 'ui/context.go')
-rw-r--r--ui/context.go109
1 files changed, 0 insertions, 109 deletions
diff --git a/ui/context.go b/ui/context.go
deleted file mode 100644
index ca3f452..0000000
--- a/ui/context.go
+++ /dev/null
@@ -1,109 +0,0 @@
-package ui
-
-import (
- "fmt"
-
- "github.com/mattn/go-runewidth"
- tb "github.com/nsf/termbox-go"
-)
-
-// A context allows you to draw in a sub-region of the terminal
-type Context struct {
- x int
- y int
- width int
- height int
-}
-
-func (ctx *Context) X() int {
- return ctx.x
-}
-
-func (ctx *Context) Y() int {
- return ctx.y
-}
-
-func (ctx *Context) Width() int {
- return ctx.width
-}
-
-func (ctx *Context) Height() int {
- return ctx.height
-}
-
-func NewContext(width, height int) *Context {
- return &Context{0, 0, width, height}
-}
-
-func (ctx *Context) Subcontext(x, y, width, height int) *Context {
- if x+width > ctx.width || y+height > ctx.height {
- panic(fmt.Errorf("Attempted to create context larger than parent"))
- }
- return &Context{
- x: ctx.x + x,
- y: ctx.y + y,
- width: width,
- height: height,
- }
-}
-
-func (ctx *Context) SetCell(x, y int, ch rune, fg, bg tb.Attribute) {
- if x >= ctx.width || y >= ctx.height {
- panic(fmt.Errorf("Attempted to draw outside of context"))
- }
- tb.SetCell(ctx.x+x, ctx.y+y, ch, fg, bg)
-}
-
-func (ctx *Context) Printf(x, y int, ref tb.Cell,
- format string, a ...interface{}) int {
-
- if x >= ctx.width || y >= ctx.height {
- panic(fmt.Errorf("Attempted to draw outside of context"))
- }
-
- str := fmt.Sprintf(format, a...)
-
- x += ctx.x
- y += ctx.y
- old_x := x
-
- newline := func() bool {
- x = old_x
- y++
- return y < ctx.height
- }
- for _, ch := range str {
- if str == " こんにちは " {
- fmt.Printf("%c\n", ch)
- }
- switch ch {
- case '\n':
- if !newline() {
- return runewidth.StringWidth(str)
- }
- case '\r':
- x = old_x
- default:
- tb.SetCell(x, y, ch, ref.Fg, ref.Bg)
- x += runewidth.RuneWidth(ch)
- if x == old_x+ctx.width {
- if !newline() {
- return runewidth.StringWidth(str)
- }
- }
- }
- }
-
- return runewidth.StringWidth(str)
-}
-
-func (ctx *Context) Fill(x, y, width, height int, ref tb.Cell) {
- _x := x
- _y := y
- for ; y < _y+height && y < ctx.height; y++ {
- for ; x < _x+width && x < ctx.width; x++ {
- ctx.SetCell(x, y, ref.Ch, ref.Fg, ref.Bg)
- }
- x = _x
- }
-}