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41 lines
2.0 KiB
JavaScript
41 lines
2.0 KiB
JavaScript
if (this.stages !== undefined) throw new Error('Redifining stages global!');
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this.stages = {};
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stages.AbstractStage = class AbstractStage {
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// This method should fill in this stage's field in glyph.stages. The glyph
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// may already have a value for this stage set. If so, this stage's internal
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// state should be initialized in such a way to achieve that output, if that
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// is possible; doing so allows users to make some edits, switch to another
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// glyph, and then switch back and continue where they left off.
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constructor(glyph) {
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// Session variables the interface by which the stage interacts with UI:
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// - type - String type of this stage.
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// - paths - list of dicts with keys in [cls, d, fill, stroke].
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// - lines - list of dicts with keys in [cls, stroke, x1, y1, x2, y2].
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// - points - list of dicts with keys in [cls, cx, cy, fill, stroke].
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// - instructions - String instructions for the user
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// - status - list of dicts with keys in [cls, message] to log.
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//
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// The class name 'selectable' is special for paths, lines, and points.
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// Including this class in cls for those objects will make them interactive
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// and will trigger the onClick callback when they are clicked.
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Session.set('stage.type', undefined);
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Session.set('stage.paths', undefined);
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Session.set('stage.lines', undefined);
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Session.set('stage.points', undefined);
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Session.set('stage.instructions', undefined);
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Session.set('stage.status', undefined);
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this.colors = ['#0074D9', '#2ECC40', '#FFDC00', '#FF4136', '#7FDBFF',
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'#001F3F', '#39CCCC', '#3D9970', '#01FF70', '#FF851B'];
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}
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// Update the stage's internal state and possibly update this stage's field
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// in glyph.stages based on the event.
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handleEvent(glyph, event, template) {
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assert(false, 'handleEvent was not implemented!');
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}
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// Refresh the stage UI based on the current state of this stage.
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refresh(glyph) {
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assert(false, 'refresh was not implemented!');
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}
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}
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