foam-framework
Version:
MVC metaprogramming framework
73 lines (61 loc) • 1.78 kB
JavaScript
/**
* @license
* Copyright 2015 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
CLASS({
package: 'foam.graphics.webgl.matrix',
name: 'TransposeMatrix4',
extends: 'foam.graphics.webgl.matrix.Matrix4',
properties: [
{
name: 'source',
preSet: function(old, nu) {
if ( old ) { old.removeDirectListener(this); }
//if ( old ) { old.removeListener(this.reset); }
return nu;
},
postSet: function(old,nu) {
if ( nu ) { nu.addDirectListener(this); }
// if ( nu ) { nu.addListener(this.reset); }
this.reset_();
}
}
],
listeners: [
{
name: 'reset',
code: function() { this.reset_(); }
}
],
methods: [
function recalculate_() {
/* Implement in your submodels to calculate and return the contents
of this matrix. */
if (this.source.identity) return this.source.flat.slice();
this.transpose(this.source);
},
function transpose(matrix) {
var m = matrix.flat;
var els = this.instance_.flat;
// transpose
for (var j=0; j < 4; ++j) {
for (var i=0; i < 4; ++i) {
els[i+j*4] = m[j+i*4];
}
}
return els;
},
]
});