26 lines
664 B
Standard ML
26 lines
664 B
Standard ML
structure AppUpdate =
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struct
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open AppType
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open MailboxType
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open DrawMsg
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open InputMsg
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fun resizeText (app: app_type, newWidth, newHeight) =
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let
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val {buffer, windowWidth, windowHeight, startLine, cursorIdx} = app
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val newBuffer = LineGap.goToLine (startLine, buffer)
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val textVec = TextBuilder.build
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(startLine, cursorIdx, newBuffer, newWidth, newHeight)
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val newApp = AppWith.bufferAndSize (app, newBuffer, newWidth, newHeight)
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val msg = REDRAW_TEXT textVec
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in
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(newApp, [DRAW msg])
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end
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fun update (app, msg) =
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case msg of RESIZE_EVENT (width, height) => resizeText (app, width, height)
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end
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