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A JavaScript library for rendering music notation and guitar tablature
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<title>boundingbox.js</title>
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<h1>boundingbox.js</h1>
<div class="toc">
<h3>Table of Contents</h3>
<ol>
<li>
<a class="source" href="accidental.html">
accidental.js
</a>
</li>
<li>
<a class="source" href="annotation.html">
annotation.js
</a>
</li>
<li>
<a class="source" href="articulation.html">
articulation.js
</a>
</li>
<li>
<a class="source" href="barnote.html">
barnote.js
</a>
</li>
<li>
<a class="source" href="beam.html">
beam.js
</a>
</li>
<li>
<a class="source" href="bend.html">
bend.js
</a>
</li>
<li>
<a class="source" href="boundingbox.html">
boundingbox.js
</a>
</li>
<li>
<a class="source" href="boundingboxcomputation.html">
boundingboxcomputation.js
</a>
</li>
<li>
<a class="source" href="canvascontext.html">
canvascontext.js
</a>
</li>
<li>
<a class="source" href="clef.html">
clef.js
</a>
</li>
<li>
<a class="source" href="clefnote.html">
clefnote.js
</a>
</li>
<li>
<a class="source" href="crescendo.html">
crescendo.js
</a>
</li>
<li>
<a class="source" href="curve.html">
curve.js
</a>
</li>
<li>
<a class="source" href="dot.html">
dot.js
</a>
</li>
<li>
<a class="source" href="easyscore.html">
easyscore.js
</a>
</li>
<li>
<a class="source" href="element.html">
element.js
</a>
</li>
<li>
<a class="source" href="factory.html">
factory.js
</a>
</li>
<li>
<a class="source" href="formatter.html">
formatter.js
</a>
</li>
<li>
<a class="source" href="fraction.html">
fraction.js
</a>
</li>
<li>
<a class="source" href="frethandfinger.html">
frethandfinger.js
</a>
</li>
<li>
<a class="source" href="ghostnote.html">
ghostnote.js
</a>
</li>
<li>
<a class="source" href="glyph.html">
glyph.js
</a>
</li>
<li>
<a class="source" href="glyphnote.html">
glyphnote.js
</a>
</li>
<li>
<a class="source" href="gracenote.html">
gracenote.js
</a>
</li>
<li>
<a class="source" href="gracenotegroup.html">
gracenotegroup.js
</a>
</li>
<li>
<a class="source" href="gracetabnote.html">
gracetabnote.js
</a>
</li>
<li>
<a class="source" href="index.html">
index.js
</a>
</li>
<li>
<a class="source" href="keymanager.html">
keymanager.js
</a>
</li>
<li>
<a class="source" href="keysignature.html">
keysignature.js
</a>
</li>
<li>
<a class="source" href="keysignote.html">
keysignote.js
</a>
</li>
<li>
<a class="source" href="modifier.html">
modifier.js
</a>
</li>
<li>
<a class="source" href="modifiercontext.html">
modifiercontext.js
</a>
</li>
<li>
<a class="source" href="multimeasurerest.html">
multimeasurerest.js
</a>
</li>
<li>
<a class="source" href="music.html">
music.js
</a>
</li>
<li>
<a class="source" href="note.html">
note.js
</a>
</li>
<li>
<a class="source" href="notehead.html">
notehead.js
</a>
</li>
<li>
<a class="source" href="notesubgroup.html">
notesubgroup.js
</a>
</li>
<li>
<a class="source" href="ornament.html">
ornament.js
</a>
</li>
<li>
<a class="source" href="parser.html">
parser.js
</a>
</li>
<li>
<a class="source" href="pedalmarking.html">
pedalmarking.js
</a>
</li>
<li>
<a class="source" href="raphaelcontext.html">
raphaelcontext.js
</a>
</li>
<li>
<a class="source" href="registry.html">
registry.js
</a>
</li>
<li>
<a class="source" href="renderer.html">
renderer.js
</a>
</li>
<li>
<a class="source" href="repeatnote.html">
repeatnote.js
</a>
</li>
<li>
<a class="source" href="smufl.html">
smufl.js
</a>
</li>
<li>
<a class="source" href="stave.html">
stave.js
</a>
</li>
<li>
<a class="source" href="stavebarline.html">
stavebarline.js
</a>
</li>
<li>
<a class="source" href="staveconnector.html">
staveconnector.js
</a>
</li>
<li>
<a class="source" href="stavehairpin.html">
stavehairpin.js
</a>
</li>
<li>
<a class="source" href="staveline.html">
staveline.js
</a>
</li>
<li>
<a class="source" href="stavemodifier.html">
stavemodifier.js
</a>
</li>
<li>
<a class="source" href="stavenote.html">
stavenote.js
</a>
</li>
<li>
<a class="source" href="staverepetition.html">
staverepetition.js
</a>
</li>
<li>
<a class="source" href="stavesection.html">
stavesection.js
</a>
</li>
<li>
<a class="source" href="stavetempo.html">
stavetempo.js
</a>
</li>
<li>
<a class="source" href="stavetext.html">
stavetext.js
</a>
</li>
<li>
<a class="source" href="stavetie.html">
stavetie.js
</a>
</li>
<li>
<a class="source" href="stavevolta.html">
stavevolta.js
</a>
</li>
<li>
<a class="source" href="stem.html">
stem.js
</a>
</li>
<li>
<a class="source" href="stemmablenote.html">
stemmablenote.js
</a>
</li>
<li>
<a class="source" href="stringnumber.html">
stringnumber.js
</a>
</li>
<li>
<a class="source" href="strokes.html">
strokes.js
</a>
</li>
<li>
<a class="source" href="svgcontext.html">
svgcontext.js
</a>
</li>
<li>
<a class="source" href="system.html">
system.js
</a>
</li>
<li>
<a class="source" href="tables.html">
tables.js
</a>
</li>
<li>
<a class="source" href="tabnote.html">
tabnote.js
</a>
</li>
<li>
<a class="source" href="tabslide.html">
tabslide.js
</a>
</li>
<li>
<a class="source" href="tabstave.html">
tabstave.js
</a>
</li>
<li>
<a class="source" href="tabtie.html">
tabtie.js
</a>
</li>
<li>
<a class="source" href="textbracket.html">
textbracket.js
</a>
</li>
<li>
<a class="source" href="textdynamics.html">
textdynamics.js
</a>
</li>
<li>
<a class="source" href="textnote.html">
textnote.js
</a>
</li>
<li>
<a class="source" href="tickable.html">
tickable.js
</a>
</li>
<li>
<a class="source" href="tickcontext.html">
tickcontext.js
</a>
</li>
<li>
<a class="source" href="timesignature.html">
timesignature.js
</a>
</li>
<li>
<a class="source" href="timesignote.html">
timesignote.js
</a>
</li>
<li>
<a class="source" href="tremolo.html">
tremolo.js
</a>
</li>
<li>
<a class="source" href="tuning.html">
tuning.js
</a>
</li>
<li>
<a class="source" href="tuplet.html">
tuplet.js
</a>
</li>
<li>
<a class="source" href="vex.html">
vex.js
</a>
</li>
<li>
<a class="source" href="vibrato.html">
vibrato.js
</a>
</li>
<li>
<a class="source" href="vibratobracket.html">
vibratobracket.js
</a>
</li>
<li>
<a class="source" href="voice.html">
voice.js
</a>
</li>
<li>
<a class="source" href="voicegroup.html">
voicegroup.js
</a>
</li>
</ol>
</div>
</div>
<p>Vex Music Notation
Mohit Muthanna <a href="mailto:mohit@muthanna.com">mohit@muthanna.com</a></p>
<p>Copyright Mohit Muthanna 2010</p>
<p>Bounding boxes for interactive notation</p>
<div class='highlight'><pre>
<span class="hljs-keyword">export</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">BoundingBox</span> </span>{
<span class="hljs-keyword">static</span> copy(that) {
<span class="hljs-keyword">return</span> <span class="hljs-keyword">new</span> BoundingBox(that.x, that.y, that.w, that.h);
}
<span class="hljs-keyword">constructor</span>(x, y, w, h) {
<span class="hljs-keyword">this</span>.x = x;
<span class="hljs-keyword">this</span>.y = y;
<span class="hljs-keyword">this</span>.w = w;
<span class="hljs-keyword">this</span>.h = h;
}
getX() { <span class="hljs-keyword">return</span> <span class="hljs-keyword">this</span>.x; }
getY() { <span class="hljs-keyword">return</span> <span class="hljs-keyword">this</span>.y; }
getW() { <span class="hljs-keyword">return</span> <span class="hljs-keyword">this</span>.w; }
getH() { <span class="hljs-keyword">return</span> <span class="hljs-keyword">this</span>.h; }
setX(x) { <span class="hljs-keyword">this</span>.x = x; <span class="hljs-keyword">return</span> <span class="hljs-keyword">this</span>; }
setY(y) { <span class="hljs-keyword">this</span>.y = y; <span class="hljs-keyword">return</span> <span class="hljs-keyword">this</span>; }
setW(w) { <span class="hljs-keyword">this</span>.w = w; <span class="hljs-keyword">return</span> <span class="hljs-keyword">this</span>; }
setH(h) { <span class="hljs-keyword">this</span>.h = h; <span class="hljs-keyword">return</span> <span class="hljs-keyword">this</span>; }
move(x, y) { <span class="hljs-keyword">this</span>.x += x; <span class="hljs-keyword">this</span>.y += y; }
clone() { <span class="hljs-keyword">return</span> BoundingBox.copy(<span class="hljs-keyword">this</span>); }</pre></div>
<p>Merge my box with given box. Creates a bigger bounding box unless
the given box is contained in this one.</p>
<div class='highlight'><pre> mergeWith(boundingBox, ctx) {
<span class="hljs-keyword">const</span> that = boundingBox;
<span class="hljs-keyword">const</span> new_x = <span class="hljs-keyword">this</span>.x < that.x ? <span class="hljs-keyword">this</span>.x : that.x;
<span class="hljs-keyword">const</span> new_y = <span class="hljs-keyword">this</span>.y < that.y ? <span class="hljs-keyword">this</span>.y : that.y;
<span class="hljs-keyword">const</span> new_w = <span class="hljs-built_in">Math</span>.max(<span class="hljs-keyword">this</span>.x + <span class="hljs-keyword">this</span>.w, that.x + that.w) - new_x;
<span class="hljs-keyword">const</span> new_h = <span class="hljs-built_in">Math</span>.max(<span class="hljs-keyword">this</span>.y + <span class="hljs-keyword">this</span>.h, that.y + that.h) - new_y;
<span class="hljs-keyword">this</span>.x = new_x;
<span class="hljs-keyword">this</span>.y = new_y;
<span class="hljs-keyword">this</span>.w = new_w;
<span class="hljs-keyword">this</span>.h = new_h;
<span class="hljs-keyword">if</span> (ctx) <span class="hljs-keyword">this</span>.draw(ctx);
<span class="hljs-keyword">return</span> <span class="hljs-keyword">this</span>;
}
draw(ctx, x, y) {
<span class="hljs-keyword">if</span> (!x) x = <span class="hljs-number">0</span>;
<span class="hljs-keyword">if</span> (!y) y = <span class="hljs-number">0</span>;
ctx.rect(<span class="hljs-keyword">this</span>.x + x, <span class="hljs-keyword">this</span>.y + y, <span class="hljs-keyword">this</span>.w, <span class="hljs-keyword">this</span>.h);
ctx.stroke();
}
}</pre></div>
<div class="fleur">h</div>
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