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120 lines
3.0 KiB
Plaintext
120 lines
3.0 KiB
Plaintext
-- x.neo.pub.window @ sys-everest --
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This API is the reference definition
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of how the windowing system works in
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KittenOS NEO.
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Implementing this API, by definition,
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makes your process the controller of
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windowing on the system, which means
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you control Icecap security dialogs.
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...and that's why r.neo.* access is
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heavily restricted unless the user
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uses the Advanced Settings panel.
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The API gives you a function:
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(w, h, title) -> window
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This function creates a window.
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NOTE: The width can never be smaller
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than 8, under any circumstances.
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Trying to will cause the width to be
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forced to 8.
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Window fields:
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id: Window ID.
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setSize(w, h): Changes the size of
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the window, and sends the line
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events (even if the size doesn't
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change)
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NOTE: The width can never be smaller
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than 8, under any circumstances.
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Trying to will cause the width to be
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forced to 8.
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getDepth(): Returns the depth of the
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screen the window is on.
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span(x, y, text, bg, fg): Draws a
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span onto the screen.
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This function will error if the
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Everest instance is dead.
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(Others won't.)
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recommendPalette(pal): If the window
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is focused, sets the first #pal
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palette entries to the given RGB
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values.
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This is meant only as a hint to
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Everest, and may be ignored.
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Returns the amount of entries set.
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NOTE: Up to 4 colours may be used
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by the implementation as "base"
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colours, and thus cannot be set as
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past of a palette to prevent any
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use of the application-controlled
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indexes in the major UI.
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This is because the palette-setting
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interface leads to graphics issues
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with multi-tasking, even in those
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programs not using the interface,
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so a set of reliable colours is
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required to keep a multitasking
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system usable in these edge cases.
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close(): Close the window.
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Events:
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api, id, "key", ka, kc, down
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api, id, "touch"/"drag"/"drop",
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lx, ly, ix, iy, button
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api, id, "scroll",
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lx, ly, ix, iy, amount
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api, id, "clipboard", text
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api, id, "close"
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api, id, "focus", hasFocus
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api, id, "line", lineIndex
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Palette advice for artists:
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*Use 16-colour images*, and ensure
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the viewer software uses the palette
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functions. Always use a 2x4 grid to
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check cell colour limits. If your
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palette contains any reserved
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colour, make it last in the palette,
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so that they are not wasted if not
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used.
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Notes on UI design:
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The UI design is heavily monochrome.
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core (neoux supported):
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"[textheretext]": This means a text
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field. It should preferably right-
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align text if too much is inside,
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ensuring that what is being written
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can be read.
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The enter button should do nothing,
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and the backspace/delete buttons
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should both remove the last Unicode
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character.
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"<texthere>": This means a button.
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Space or enter should activate it.
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additional:
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"◢": Resize widget. Drag-dropping
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should cause a resize. This
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need not occur until the drop
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is completed.
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Standardized by Izaya.
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The non-GUI way to do this is
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for ctrl-arrows to resize
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the window.
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-- This is released into
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the public domain.
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-- No warranty is provided,
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implied or otherwise.
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