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105 lines
2.3 KiB
CoffeeScript
105 lines
2.3 KiB
CoffeeScript
class AsciiIo.Renderer.Canvas extends AsciiIo.Renderer.Base
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tagName: 'canvas'
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className: 'terminal'
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events:
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'click': 'onClick'
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initialize: (options) ->
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super(options)
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@ctx = @el.getContext('2d')
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@cellWidth = 7
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@cellHeight = 14
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afterInsertedToDom: ->
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width = @cols * @cellWidth
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height = @lines * @cellHeight
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@$el.attr('width', width)
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@$el.attr('height', height)
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@setFont()
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# @$el.css(width: width + 'px', height: height + 'px')
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# @ctx.scale(1, 1)
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setFont: ->
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size = @$el.css('font-size')
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console.log size
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family = @$el.css('font-family')
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console.log family
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@font = "#{size} #{family}"
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@ctx.font = @font
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@prevFont = @font
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renderLine: (n, data, cursorX) ->
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left = 0
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width = @cols * @cellWidth
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top = n * @cellHeight
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# bottom = (n + 1) * @cellHeight
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# @ctx.clearRect(left, top + 1, width, @cellHeight)
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# ctx.fillStyle = "#FFA500";
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# @ctx.font = "12px monospace"
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for i in [0...@cols]
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d = data[i]
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if d
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[char, brush] = d
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char = char.replace('&', '&').replace('<', '<')
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@setBackgroundAttributes(brush)
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@ctx.fillRect left + i * @cellWidth, top + 1, @cellWidth, @cellHeight
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if char != ' '
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@setTextAttributes(brush)
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@ctx.fillText char, i * @cellWidth, top + @cellHeight - 2
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setBackgroundAttributes: (brush) ->
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if brush.bg isnt undefined
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bg = brush.bg
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bg += 8 if bg < 8 and brush.blink
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else
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bg = 0
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@ctx.fillStyle = AsciiIo.colors[bg]
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setTextAttributes: (brush) ->
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if brush.fg isnt undefined
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fg = brush.fg
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fg += 8 if fg < 8 and brush.bright
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else
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fg = 7
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@ctx.fillStyle = AsciiIo.colors[fg]
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font = @font
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if brush.bright or brush.italic
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if brush.bright
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font = "bold #{font}"
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if brush.italic
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font = "italic #{font}"
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if font != @prevFont
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@ctx.font = font
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@prevFont = font
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showCursor: (show) ->
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# if show
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# @$el.addClass "cursor-on"
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# else
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# @$el.removeClass "cursor-on"
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blinkCursor: ->
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# cursor = @$el.find(".cursor")
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# if cursor.hasClass("visible")
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# cursor.removeClass "visible"
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# else
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# cursor.addClass "visible"
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resetCursorState: ->
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# cursor = @$el.find(".cursor")
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# cursor.addClass "visible"
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