mirror of
https://github.com/br0xen/termbox-util.git
synced 2024-11-25 23:03:13 +00:00
136 lines
3.3 KiB
Go
136 lines
3.3 KiB
Go
package termboxUtil
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import (
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"fmt"
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"strings"
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"github.com/nsf/termbox-go"
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)
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type termboxControl interface {
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GetX() int
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SetX(int)
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GetY() int
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SetY(int)
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GetWidth() int
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SetWidth(int)
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GetHeight() int
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SetHeight(int)
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HandleKeyPress(termbox.Event) bool
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Draw()
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}
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// TextAlignment is an int value for how we're aligning text
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type TextAlignment int
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const (
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// AlignLeft Aligns text to the left
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AlignLeft = iota
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// AlignCenter Aligns text to the center
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AlignCenter
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// AlignRight Aligns text to the right
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AlignRight
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)
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/* Basic Input Helpers */
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// KeyIsAlphaNumeric Returns whether the termbox event is an
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// Alpha-Numeric Key Press
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func KeyIsAlphaNumeric(event termbox.Event) bool {
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return KeyIsAlpha(event) || KeyIsNumeric(event)
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}
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// KeyIsAlpha Returns whether the termbox event is a
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// alphabetic Key press
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func KeyIsAlpha(event termbox.Event) bool {
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k := event.Ch
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if (k >= 'a' && k <= 'z') || (k >= 'A' && k <= 'Z') {
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return true
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}
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return false
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}
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// KeyIsNumeric Returns whether the termbox event is a
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// numeric Key press
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func KeyIsNumeric(event termbox.Event) bool {
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k := event.Ch
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if k >= '0' && k <= '9' {
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return true
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}
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return false
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}
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// KeyIsSymbol Returns whether the termbox event is a
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// symbol Key press
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func KeyIsSymbol(event termbox.Event) bool {
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symbols := []rune{'!', '@', '#', '$', '%', '^', '&', '*',
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'(', ')', '-', '_', '=', '+', '[', ']', '{', '}', '|',
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';', ':', '"', '\'', ',', '<', '.', '>', '/', '?', '`', '~'}
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k := event.Ch
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for i := range symbols {
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if k == symbols[i] {
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return true
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}
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}
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return false
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}
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/* Basic Output Helpers */
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// DrawStringAtPoint Draw a string of text at x, y with foreground color fg, background color bg
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func DrawStringAtPoint(str string, x int, y int, fg termbox.Attribute, bg termbox.Attribute) (int, int) {
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xPos := x
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for _, runeValue := range str {
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termbox.SetCell(xPos, y, runeValue, fg, bg)
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xPos++
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}
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return xPos, y
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}
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// FillWithChar Fills from x1,y1 through x2,y2 with the rune r, foreground color fg, background bg
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func FillWithChar(r rune, x1, y1, x2, y2 int, fg termbox.Attribute, bg termbox.Attribute) {
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for xx := x1; xx <= x2; xx++ {
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for yx := y1; yx <= y2; yx++ {
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termbox.SetCell(xx, yx, r, fg, bg)
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}
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}
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}
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// DrawBorder Draw a border around the area inside x1,y1 -> x2, y2
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func DrawBorder(x1, y1, x2, y2 int, fg termbox.Attribute, bg termbox.Attribute) {
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termbox.SetCell(x1, y1, '+', fg, bg)
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FillWithChar('-', x1+1, y1, x2-1, y1, fg, bg)
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termbox.SetCell(x2, y1, '+', fg, bg)
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FillWithChar('|', x1, y1+1, x1, y2-1, fg, bg)
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FillWithChar('|', x2, y1+1, x2, y2-1, fg, bg)
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termbox.SetCell(x1, y2, '+', fg, bg)
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FillWithChar('-', x1+1, y2, x2-1, y2, fg, bg)
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termbox.SetCell(x2, y2, '+', fg, bg)
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}
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// AlignText Aligns the text txt within width characters using the specified alignment
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func AlignText(txt string, width int, align TextAlignment) string {
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numSpaces := width - len(txt)
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switch align {
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case AlignCenter:
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if numSpaces/2 > 0 {
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return fmt.Sprintf("%s%s%s",
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strings.Repeat(" ", numSpaces/2),
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txt, strings.Repeat(" ", numSpaces/2),
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)
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}
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return txt
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case AlignRight:
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return fmt.Sprintf("%s%s", strings.Repeat(" ", numSpaces), txt)
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default:
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if numSpaces >= 0 {
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return fmt.Sprintf("%s%s", txt, strings.Repeat(" ", numSpaces))
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}
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return txt
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}
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}
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/* More advanced things are in their respective files */
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