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| /*
| This file is part of Ext JS 4.2
|
| Copyright (c) 2011-2013 Sencha Inc
|
| Contact: http://www.sencha.com/contact
|
| GNU General Public License Usage
| This file may be used under the terms of the GNU General Public License version 3.0 as
| published by the Free Software Foundation and appearing in the file LICENSE included in the
| packaging of this file.
|
| Please review the following information to ensure the GNU General Public License version 3.0
| requirements will be met: http://www.gnu.org/copyleft/gpl.html.
|
| If you are unsure which license is appropriate for your use, please contact the sales department
| at http://www.sencha.com/contact.
|
| Build date: 2013-05-16 14:36:50 (f9be68accb407158ba2b1be2c226a6ce1f649314)
| */
| /**
| * @private
| */
| Ext.define('Ext.draw.Matrix', {
|
| /* Begin Definitions */
|
| requires: ['Ext.draw.Draw'],
|
| /* End Definitions */
|
| constructor: function(a, b, c, d, e, f) {
| if (a != null) {
| this.matrix = [[a, c, e], [b, d, f], [0, 0, 1]];
| }
| else {
| this.matrix = [[1, 0, 0], [0, 1, 0], [0, 0, 1]];
| }
| },
|
| add: function(a, b, c, d, e, f) {
| var me = this,
| out = [[], [], []],
| matrix = [[a, c, e], [b, d, f], [0, 0, 1]],
| x,
| y,
| z,
| res;
|
| for (x = 0; x < 3; x++) {
| for (y = 0; y < 3; y++) {
| res = 0;
| for (z = 0; z < 3; z++) {
| res += me.matrix[x][z] * matrix[z][y];
| }
| out[x][y] = res;
| }
| }
| me.matrix = out;
| },
|
| prepend: function(a, b, c, d, e, f) {
| var me = this,
| out = [[], [], []],
| matrix = [[a, c, e], [b, d, f], [0, 0, 1]],
| x,
| y,
| z,
| res;
|
| for (x = 0; x < 3; x++) {
| for (y = 0; y < 3; y++) {
| res = 0;
| for (z = 0; z < 3; z++) {
| res += matrix[x][z] * me.matrix[z][y];
| }
| out[x][y] = res;
| }
| }
| me.matrix = out;
| },
|
| invert: function() {
| var matrix = this.matrix,
| a = matrix[0][0],
| b = matrix[1][0],
| c = matrix[0][1],
| d = matrix[1][1],
| e = matrix[0][2],
| f = matrix[1][2],
| x = a * d - b * c;
| return new Ext.draw.Matrix(d / x, -b / x, -c / x, a / x, (c * f - d * e) / x, (b * e - a * f) / x);
| },
|
| clone: function() {
| var matrix = this.matrix,
| a = matrix[0][0],
| b = matrix[1][0],
| c = matrix[0][1],
| d = matrix[1][1],
| e = matrix[0][2],
| f = matrix[1][2];
| return new Ext.draw.Matrix(a, b, c, d, e, f);
| },
|
| translate: function(x, y) {
| this.prepend(1, 0, 0, 1, x, y);
| },
|
| scale: function(x, y, cx, cy) {
| var me = this;
| if (y == null) {
| y = x;
| }
| me.add(x, 0, 0, y, cx * (1 - x), cy * (1 - y));
| },
|
| rotate: function(a, x, y) {
| a = Ext.draw.Draw.rad(a);
| var me = this,
| cos = +Math.cos(a).toFixed(9),
| sin = +Math.sin(a).toFixed(9);
| me.add(cos, sin, -sin, cos, x - cos * x + sin * y, -(sin * x) + y - cos * y);
| },
|
| x: function(x, y) {
| var matrix = this.matrix;
| return x * matrix[0][0] + y * matrix[0][1] + matrix[0][2];
| },
|
| y: function(x, y) {
| var matrix = this.matrix;
| return x * matrix[1][0] + y * matrix[1][1] + matrix[1][2];
| },
|
| get: function(i, j) {
| return + this.matrix[i][j].toFixed(4);
| },
|
| toString: function() {
| var me = this;
| return [me.get(0, 0), me.get(0, 1), me.get(1, 0), me.get(1, 1), 0, 0].join();
| },
|
| toSvg: function() {
| var me = this;
| return "matrix(" + [me.get(0, 0), me.get(1, 0), me.get(0, 1), me.get(1, 1), me.get(0, 2), me.get(1, 2)].join() + ")";
| },
|
| toFilter: function(dx, dy) {
| var me = this;
| dx = dx || 0;
| dy = dy || 0;
| return "progid:DXImageTransform.Microsoft.Matrix(sizingMethod='auto expand', filterType='bilinear', M11=" + me.get(0, 0) +
| ", M12=" + me.get(0, 1) + ", M21=" + me.get(1, 0) + ", M22=" + me.get(1, 1) +
| ", Dx=" + (me.get(0, 2) + dx) + ", Dy=" + (me.get(1, 2) + dy) + ")";
| },
|
| offset: function() {
| var matrix = this.matrix;
| return [(matrix[0][2] || 0).toFixed(4), (matrix[1][2] || 0).toFixed(4)];
| },
|
| // Split matrix into Translate Scale, Shear, and Rotate
| split: function () {
| function norm(a) {
| return a[0] * a[0] + a[1] * a[1];
| }
| function normalize(a) {
| var mag = Math.sqrt(norm(a));
| a[0] /= mag;
| a[1] /= mag;
| }
| var matrix = this.matrix,
| out = {
| translateX: matrix[0][2],
| translateY: matrix[1][2]
| },
| row;
|
| // scale and shear
| row = [[matrix[0][0], matrix[0][1]], [matrix[1][1], matrix[1][1]]];
| out.scaleX = Math.sqrt(norm(row[0]));
| normalize(row[0]);
|
| out.shear = row[0][0] * row[1][0] + row[0][1] * row[1][1];
| row[1] = [row[1][0] - row[0][0] * out.shear, row[1][1] - row[0][1] * out.shear];
|
| out.scaleY = Math.sqrt(norm(row[1]));
| normalize(row[1]);
| out.shear /= out.scaleY;
|
| // rotation
| out.rotate = Math.asin(-row[0][1]);
|
| out.isSimple = !+out.shear.toFixed(9) && (out.scaleX.toFixed(9) == out.scaleY.toFixed(9) || !out.rotate);
|
| return out;
| }
| });
|
|
