vexflow/tests/stavemodifier_tests.js

A JavaScript library for rendering music notation and guitar tablature

/**
 * VexFlow - StaveModifier Tests
 * Copyright Mohit Muthanna 2010 <mohit@muthanna.com>
 */

VF.Test.StaveModifier = (function() {
  var StaveModifier = {
    Start: function() {
      QUnit.module('StaveModifier');
      VF.Test.runTests('Stave Draw Test', VF.Test.Stave.draw);
      VF.Test.runTests('Vertical Bar Test',
        VF.Test.Stave.drawVerticalBar);
      VF.Test.runTests('Begin & End StaveModifier Test',
        StaveModifier.drawBeginAndEnd);
    },

    draw: function(options, contextBuilder) {
      var ctx = new contextBuilder(options.elementId, 400, 120);
      var stave = new VF.Stave(10, 10, 300);
      stave.setContext(ctx);
      stave.draw();

      equal(stave.getYForNote(0), 100, 'getYForNote(0)');
      equal(stave.getYForLine(5), 100, 'getYForLine(5)');
      equal(stave.getYForLine(0), 50, 'getYForLine(0) - Top Line');
      equal(stave.getYForLine(4), 90, 'getYForLine(4) - Bottom Line');

      ok(true, 'all pass');
    },

    drawVerticalBar: function(options, contextBuilder) {
      var ctx = contextBuilder(options.elementId, 400, 120);
      var stave = new VF.Stave(10, 10, 300);
      stave.setContext(ctx);
      stave.draw();
      stave.drawVerticalBar(100);
      stave.drawVerticalBar(150);
      stave.drawVerticalBar(300);

      ok(true, 'all pass');
    },

    drawBeginAndEnd: function(options, contextBuilder) {
      var ctx = contextBuilder(options.elementId, 500, 240);
      var stave = new VF.Stave(10, 10, 400);
      stave.setContext(ctx);
      stave.setTimeSignature('C|');
      stave.setKeySignature('Db');
      stave.setClef('treble');
      stave.setBegBarType(VF.Barline.type.REPEAT_BEGIN);
      stave.setEndClef('alto');
      stave.setEndTimeSignature('9/8');
      stave.setEndKeySignature('G', 'C#');
      stave.setEndBarType(VF.Barline.type.DOUBLE);
      stave.draw();

      // change
      var END = VF.StaveModifier.Position.END;
      stave.setY(100);
      stave.setTimeSignature('3/4');
      stave.setKeySignature('G', 'C#');
      stave.setClef('bass');
      stave.setBegBarType(VF.Barline.type.SINGLE);
      stave.setClef('treble', undefined, undefined, END);
      stave.setTimeSignature('C', undefined, END);
      stave.setKeySignature('F', undefined, END);
      stave.setEndBarType(VF.Barline.type.SINGLE);
      stave.draw();

      ok(true, 'all pass');
    },
  };

  return StaveModifier;
})();