[2] | 1 | /*********************************************************************** |
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| 2 | ** Title.........: Javascript Graphics |
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| 3 | ** Version.......: 1.0 |
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| 4 | ** Author........: Xiang Wei ZHUO <wei@zhuo.org> |
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| 5 | ** Filename......: wz_jsgraphics.js |
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| 6 | ** Last changed..: 31 Aug 2003 |
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| 7 | ** Notes.........: Modified for Image Editor, added extra commands |
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| 8 | **/ |
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| 9 | |
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| 10 | /* This notice must be untouched at all times. |
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| 11 | |
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| 12 | wz_jsgraphics.js v. 2.03 |
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| 13 | The latest version is available at |
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| 14 | http://www.walterzorn.com |
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| 15 | or http://www.devira.com |
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| 16 | or http://www.walterzorn.de |
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| 17 | |
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| 18 | Copyright (c) 2002-2003 Walter Zorn. All rights reserved. |
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| 19 | Created 3. 11. 2002 by Walter Zorn <walter@kreuzotter.de> |
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| 20 | Last modified: 11. 6. 2003 |
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| 21 | |
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| 22 | High Performance JavaScript Graphics Library. |
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| 23 | Provides methods |
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| 24 | - to draw lines, rectangles, ellipses, polygons |
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| 25 | with specifiable line thickness, |
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| 26 | - to fill rectangles and ellipses |
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| 27 | - to draw text. |
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| 28 | NOTE: Operations, functions and branching have rather been optimized |
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| 29 | to efficiency and speed than to shortness of source code. |
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| 30 | |
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| 31 | This program is free software; |
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| 32 | you can redistribute it and/or modify it under the terms of the |
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| 33 | GNU General Public License as published by the Free Software Foundation; |
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| 34 | either version 2 of the License, or (at your option) any later version. |
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| 35 | This program is distributed in the hope that it will be useful, |
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| 36 | but WITHOUT ANY WARRANTY; |
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| 37 | without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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| 38 | See the GNU General Public License |
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| 39 | at http://www.gnu.org/copyleft/gpl.html for more details. |
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| 40 | */ |
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| 41 | |
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| 42 | |
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| 43 | |
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| 44 | |
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| 45 | |
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| 46 | var jg_ihtm, jg_ie, jg_dom, |
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| 47 | jg_n4 = (document.layers && typeof document.classes != "undefined"); |
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| 48 | |
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| 49 | |
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| 50 | |
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| 51 | |
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| 52 | |
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| 53 | function chkDHTM(x, i) |
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| 54 | { |
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| 55 | x = document.body || null; |
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| 56 | jg_ie = (x && typeof x.insertAdjacentHTML != "undefined"); |
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| 57 | jg_dom = (x && !jg_ie && |
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| 58 | typeof x.appendChild != "undefined" && |
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| 59 | typeof document.createRange != "undefined" && |
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| 60 | typeof (i = document.createRange()).setStartBefore != "undefined" && |
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| 61 | typeof i.createContextualFragment != "undefined"); |
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| 62 | jg_ihtm = (!jg_ie && !jg_dom && x && typeof x.innerHTML != "undefined"); |
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| 63 | } |
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| 64 | |
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| 65 | |
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| 66 | |
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| 67 | |
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| 68 | |
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| 69 | function pntDoc() |
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| 70 | { |
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| 71 | this.wnd.document.write(this.htm); |
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| 72 | this.htm = ''; |
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| 73 | } |
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| 74 | |
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| 75 | |
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| 76 | |
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| 77 | |
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| 78 | |
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| 79 | function pntCnvDom() |
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| 80 | { |
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| 81 | var x = document.createRange(); |
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| 82 | x.setStartBefore(this.cnv); |
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| 83 | x = x.createContextualFragment(this.htm); |
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| 84 | this.cnv.appendChild(x); |
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| 85 | this.htm = ''; |
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| 86 | } |
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| 87 | |
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| 88 | |
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| 89 | |
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| 90 | |
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| 91 | |
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| 92 | function pntCnvIe() |
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| 93 | { |
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| 94 | this.cnv.insertAdjacentHTML("BeforeEnd", this.htm); |
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| 95 | this.htm = ''; |
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| 96 | } |
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| 97 | |
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| 98 | |
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| 99 | |
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| 100 | |
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| 101 | |
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| 102 | function pntCnvIhtm() |
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| 103 | { |
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| 104 | this.cnv.innerHTML += this.htm; |
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| 105 | this.htm = ''; |
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| 106 | } |
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| 107 | |
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| 108 | |
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| 109 | |
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| 110 | |
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| 111 | |
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| 112 | function pntCnv() |
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| 113 | { |
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| 114 | this.htm = ''; |
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| 115 | } |
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| 116 | |
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| 117 | |
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| 118 | |
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| 119 | |
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| 120 | |
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| 121 | function mkDiv(x, y, w, h) |
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| 122 | { |
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| 123 | this.htm += '<div style="position:absolute;'+ |
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| 124 | 'left:' + x + 'px;'+ |
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| 125 | 'top:' + y + 'px;'+ |
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| 126 | 'width:' + w + 'px;'+ |
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| 127 | 'height:' + h + 'px;'+ |
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| 128 | 'clip:rect(0,'+w+'px,'+h+'px,0);'+ |
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| 129 | 'overflow:hidden;background-color:' + this.color + ';'+ |
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| 130 | '"><\/div>'; |
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| 131 | |
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| 132 | //alert(this.htm); |
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| 133 | } |
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| 134 | |
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| 135 | |
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| 136 | |
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| 137 | |
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| 138 | function mkDivPrint(x, y, w, h) |
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| 139 | { |
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| 140 | this.htm += '<div style="position:absolute;'+ |
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| 141 | 'border-left:' + w + 'px solid ' + this.color + ';'+ |
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| 142 | 'left:' + x + 'px;'+ |
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| 143 | 'top:' + y + 'px;'+ |
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| 144 | 'width:' + w + 'px;'+ |
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| 145 | 'height:' + h + 'px;'+ |
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| 146 | 'clip:rect(0,'+w+'px,'+h+'px,0);'+ |
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| 147 | 'overflow:hidden;background-color:' + this.color + ';'+ |
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| 148 | '"><\/div>'; |
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| 149 | } |
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| 150 | |
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| 151 | |
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| 152 | |
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| 153 | |
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| 154 | |
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| 155 | function mkLyr(x, y, w, h) |
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| 156 | { |
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| 157 | this.htm += '<layer '+ |
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| 158 | 'left="' + x + '" '+ |
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| 159 | 'top="' + y + '" '+ |
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| 160 | 'width="' + w + '" '+ |
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| 161 | 'height="' + h + '" '+ |
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| 162 | 'bgcolor="' + this.color + '"><\/layer>\n'; |
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| 163 | } |
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| 164 | |
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| 165 | |
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| 166 | |
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| 167 | |
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| 168 | |
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| 169 | function mkLbl(txt, x, y) |
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| 170 | { |
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| 171 | this.htm += '<div style="position:absolute;white-space:nowrap;'+ |
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| 172 | 'left:' + x + 'px;'+ |
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| 173 | 'top:' + y + 'px;'+ |
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| 174 | 'font-family:' + this.ftFam + ';'+ |
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| 175 | 'font-size:' + this.ftSz + ';'+ |
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| 176 | 'color:' + this.color + ';' + this.ftSty + '">'+ |
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| 177 | txt + |
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| 178 | '<\/div>'; |
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| 179 | } |
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| 180 | |
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| 181 | |
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| 182 | |
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| 183 | |
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| 184 | |
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| 185 | function mkLin(x1, y1, x2, y2) |
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| 186 | { |
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| 187 | if (x1 > x2) |
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| 188 | { |
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| 189 | var _x2 = x2; |
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| 190 | var _y2 = y2; |
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| 191 | x2 = x1; |
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| 192 | y2 = y1; |
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| 193 | x1 = _x2; |
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| 194 | y1 = _y2; |
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| 195 | } |
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| 196 | var dx = x2-x1, dy = Math.abs(y2-y1), |
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| 197 | x = x1, y = y1, |
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| 198 | yIncr = (y1 > y2)? -1 : 1; |
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| 199 | |
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| 200 | if (dx >= dy) |
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| 201 | { |
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| 202 | var pr = dy<<1, |
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| 203 | pru = pr - (dx<<1), |
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| 204 | p = pr-dx, |
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| 205 | ox = x; |
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| 206 | while ((dx--) > 0) |
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| 207 | { |
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| 208 | ++x; |
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| 209 | if (p > 0) |
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| 210 | { |
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| 211 | this.mkDiv(ox, y, x-ox, 1); |
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| 212 | y += yIncr; |
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| 213 | p += pru; |
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| 214 | ox = x; |
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| 215 | } |
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| 216 | else p += pr; |
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| 217 | } |
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| 218 | this.mkDiv(ox, y, x2-ox+1, 1); |
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| 219 | } |
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| 220 | |
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| 221 | else |
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| 222 | { |
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| 223 | var pr = dx<<1, |
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| 224 | pru = pr - (dy<<1), |
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| 225 | p = pr-dy, |
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| 226 | oy = y; |
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| 227 | if (y2 <= y1) |
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| 228 | { |
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| 229 | while ((dy--) > 0) |
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| 230 | { |
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| 231 | if (p > 0) |
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| 232 | { |
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| 233 | this.mkDiv(x++, y, 1, oy-y+1); |
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| 234 | y += yIncr; |
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| 235 | p += pru; |
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| 236 | oy = y; |
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| 237 | } |
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| 238 | else |
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| 239 | { |
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| 240 | y += yIncr; |
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| 241 | p += pr; |
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| 242 | } |
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| 243 | } |
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| 244 | this.mkDiv(x2, y2, 1, oy-y2+1); |
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| 245 | } |
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| 246 | else |
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| 247 | { |
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| 248 | while ((dy--) > 0) |
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| 249 | { |
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| 250 | y += yIncr; |
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| 251 | if (p > 0) |
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| 252 | { |
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| 253 | this.mkDiv(x++, oy, 1, y-oy); |
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| 254 | p += pru; |
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| 255 | oy = y; |
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| 256 | } |
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| 257 | else p += pr; |
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| 258 | } |
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| 259 | this.mkDiv(x2, oy, 1, y2-oy+1); |
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| 260 | } |
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| 261 | } |
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| 262 | } |
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| 263 | |
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| 264 | |
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| 265 | |
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| 266 | |
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| 267 | |
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| 268 | function mkLin2D(x1, y1, x2, y2) |
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| 269 | { |
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| 270 | if (x1 > x2) |
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| 271 | { |
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| 272 | var _x2 = x2; |
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| 273 | var _y2 = y2; |
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| 274 | x2 = x1; |
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| 275 | y2 = y1; |
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| 276 | x1 = _x2; |
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| 277 | y1 = _y2; |
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| 278 | } |
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| 279 | var dx = x2-x1, dy = Math.abs(y2-y1), |
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| 280 | x = x1, y = y1, |
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| 281 | yIncr = (y1 > y2)? -1 : 1; |
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| 282 | |
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| 283 | |
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| 284 | var s = this.stroke; |
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| 285 | if (dx >= dy) |
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| 286 | { |
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| 287 | if (s-0x3 > 0) |
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| 288 | { |
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| 289 | var _s = (s*dx*Math.sqrt(1+dy*dy/(dx*dx))-dx-(s>>1)*dy) / dx; |
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| 290 | _s = (!(s-0x4)? Math.ceil(_s) : Math.round(_s)) + 1; |
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| 291 | } |
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| 292 | else var _s = s; |
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| 293 | var ad = Math.ceil(s/2); |
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| 294 | |
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| 295 | var pr = dy<<1, |
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| 296 | pru = pr - (dx<<1), |
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| 297 | p = pr-dx, |
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| 298 | ox = x; |
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| 299 | while ((dx--) > 0) |
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| 300 | { |
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| 301 | ++x; |
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| 302 | if (p > 0) |
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| 303 | { |
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| 304 | this.mkDiv(ox, y, x-ox+ad, _s); |
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| 305 | y += yIncr; |
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| 306 | p += pru; |
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| 307 | ox = x; |
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| 308 | } |
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| 309 | else p += pr; |
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| 310 | } |
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| 311 | this.mkDiv(ox, y, x2-ox+ad+1, _s); |
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| 312 | } |
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| 313 | |
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| 314 | else |
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| 315 | { |
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| 316 | if (s-0x3 > 0) |
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| 317 | { |
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| 318 | var _s = (s*dy*Math.sqrt(1+dx*dx/(dy*dy))-(s>>1)*dx-dy) / dy; |
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| 319 | _s = (!(s-0x4)? Math.ceil(_s) : Math.round(_s)) + 1; |
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| 320 | } |
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| 321 | else var _s = s; |
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| 322 | var ad = Math.round(s/2); |
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| 323 | |
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| 324 | var pr = dx<<1, |
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| 325 | pru = pr - (dy<<1), |
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| 326 | p = pr-dy, |
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| 327 | oy = y; |
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| 328 | if (y2 <= y1) |
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| 329 | { |
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| 330 | ++ad; |
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| 331 | while ((dy--) > 0) |
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| 332 | { |
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| 333 | if (p > 0) |
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| 334 | { |
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| 335 | this.mkDiv(x++, y, _s, oy-y+ad); |
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| 336 | y += yIncr; |
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| 337 | p += pru; |
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| 338 | oy = y; |
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| 339 | } |
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| 340 | else |
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| 341 | { |
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| 342 | y += yIncr; |
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| 343 | p += pr; |
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| 344 | } |
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| 345 | } |
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| 346 | this.mkDiv(x2, y2, _s, oy-y2+ad); |
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| 347 | } |
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| 348 | else |
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| 349 | { |
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| 350 | while ((dy--) > 0) |
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| 351 | { |
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| 352 | y += yIncr; |
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| 353 | if (p > 0) |
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| 354 | { |
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| 355 | this.mkDiv(x++, oy, _s, y-oy+ad); |
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| 356 | p += pru; |
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| 357 | oy = y; |
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| 358 | } |
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| 359 | else p += pr; |
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| 360 | } |
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| 361 | this.mkDiv(x2, oy, _s, y2-oy+ad+1); |
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| 362 | } |
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| 363 | } |
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| 364 | } |
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| 365 | |
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| 366 | |
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| 367 | |
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| 368 | |
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| 369 | |
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| 370 | function mkLinDott(x1, y1, x2, y2) |
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| 371 | { |
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| 372 | if (x1 > x2) |
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| 373 | { |
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| 374 | var _x2 = x2; |
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| 375 | var _y2 = y2; |
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| 376 | x2 = x1; |
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| 377 | y2 = y1; |
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| 378 | x1 = _x2; |
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| 379 | y1 = _y2; |
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| 380 | } |
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| 381 | var dx = x2-x1, dy = Math.abs(y2-y1), |
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| 382 | x = x1, y = y1, |
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| 383 | yIncr = (y1 > y2)? -1 : 1, |
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| 384 | drw = true; |
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| 385 | if (dx >= dy) |
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| 386 | { |
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| 387 | var pr = dy<<1, |
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| 388 | pru = pr - (dx<<1), |
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| 389 | p = pr-dx; |
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| 390 | while ((dx--) > 0) |
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| 391 | { |
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| 392 | if (drw) this.mkDiv(x, y, 1, 1); |
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| 393 | drw = !drw; |
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| 394 | if (p > 0) |
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| 395 | { |
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| 396 | y += yIncr; |
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| 397 | p += pru; |
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| 398 | } |
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| 399 | else p += pr; |
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| 400 | ++x; |
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| 401 | } |
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| 402 | if (drw) this.mkDiv(x, y, 1, 1); |
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| 403 | } |
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| 404 | |
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| 405 | else |
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| 406 | { |
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| 407 | var pr = dx<<1, |
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| 408 | pru = pr - (dy<<1), |
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| 409 | p = pr-dy; |
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| 410 | while ((dy--) > 0) |
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| 411 | { |
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| 412 | if (drw) this.mkDiv(x, y, 1, 1); |
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| 413 | drw = !drw; |
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| 414 | y += yIncr; |
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| 415 | if (p > 0) |
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| 416 | { |
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| 417 | ++x; |
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| 418 | p += pru; |
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| 419 | } |
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| 420 | else p += pr; |
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| 421 | } |
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| 422 | if (drw) this.mkDiv(x, y, 1, 1); |
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| 423 | } |
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| 424 | } |
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| 425 | |
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| 426 | |
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| 427 | |
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| 428 | |
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| 429 | |
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| 430 | function mkOv(left, top, width, height) |
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| 431 | { |
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| 432 | var a = width>>1, b = height>>1, |
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| 433 | wod = width&1, hod = (height&1)+1, |
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| 434 | cx = left+a, cy = top+b, |
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| 435 | x = 0, y = b, |
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| 436 | ox = 0, oy = b, |
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| 437 | aa = (a*a)<<1, bb = (b*b)<<1, |
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| 438 | st = (aa>>1)*(1-(b<<1)) + bb, |
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| 439 | tt = (bb>>1) - aa*((b<<1)-1), |
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| 440 | w, h; |
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| 441 | while (y > 0) |
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| 442 | { |
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| 443 | if (st < 0) |
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| 444 | { |
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| 445 | st += bb*((x<<1)+0x3); |
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| 446 | tt += (bb<<1)*(++x); |
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| 447 | } |
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| 448 | else if (tt < 0) |
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| 449 | { |
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| 450 | st += bb*((x<<1)+0x3) - (aa<<1)*(y-1); |
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| 451 | tt += (bb<<1)*(++x) - aa*(((y--)<<1)-0x3); |
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| 452 | w = x-ox; |
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| 453 | h = oy-y; |
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| 454 | if (w&0x2 && h&0x2) |
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| 455 | { |
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| 456 | this.mkOvQds(cx, cy, -x+0x2, ox+wod, -oy, oy-1+hod, 1, 1); |
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| 457 | this.mkOvQds(cx, cy, -x+1, x-1+wod, -y-1, y+hod, 1, 1); |
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| 458 | } |
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| 459 | else this.mkOvQds(cx, cy, -x+1, ox+wod, -oy, oy-h+hod, w, h); |
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| 460 | ox = x; |
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| 461 | oy = y; |
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| 462 | } |
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| 463 | else |
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| 464 | { |
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| 465 | tt -= aa*((y<<1)-0x3); |
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| 466 | st -= (aa<<1)*(--y); |
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| 467 | } |
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| 468 | } |
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| 469 | this.mkDiv(cx-a, cy-oy, a-ox+1, (oy<<1)+hod); |
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| 470 | this.mkDiv(cx+ox+wod, cy-oy, a-ox+1, (oy<<1)+hod); |
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| 471 | } |
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| 472 | |
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| 473 | |
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| 474 | |
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| 475 | |
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| 476 | |
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| 477 | function mkOv2D(left, top, width, height) |
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| 478 | { |
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| 479 | var s = this.stroke; |
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| 480 | width += s-1; |
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| 481 | height += s-1; |
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| 482 | var a = width>>1, b = height>>1, |
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| 483 | wod = width&1, hod = (height&1)+1, |
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| 484 | cx = left+a, cy = top+b, |
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| 485 | x = 0, y = b, |
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| 486 | aa = (a*a)<<1, bb = (b*b)<<1, |
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| 487 | st = (aa>>1)*(1-(b<<1)) + bb, |
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| 488 | tt = (bb>>1) - aa*((b<<1)-1); |
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| 489 | |
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| 490 | |
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| 491 | if (s-0x4 < 0 && (!(s-0x2) || width-0x33 > 0 && height-0x33 > 0)) |
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| 492 | { |
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| 493 | var ox = 0, oy = b, |
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| 494 | w, h, |
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| 495 | pxl, pxr, pxt, pxb, pxw; |
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| 496 | while (y > 0) |
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| 497 | { |
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| 498 | if (st < 0) |
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| 499 | { |
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| 500 | st += bb*((x<<1)+0x3); |
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| 501 | tt += (bb<<1)*(++x); |
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| 502 | } |
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| 503 | else if (tt < 0) |
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| 504 | { |
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| 505 | st += bb*((x<<1)+0x3) - (aa<<1)*(y-1); |
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| 506 | tt += (bb<<1)*(++x) - aa*(((y--)<<1)-0x3); |
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| 507 | w = x-ox; |
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| 508 | h = oy-y; |
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| 509 | |
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| 510 | if (w-1) |
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| 511 | { |
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| 512 | pxw = w+1+(s&1); |
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| 513 | h = s; |
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| 514 | } |
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| 515 | else if (h-1) |
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| 516 | { |
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| 517 | pxw = s; |
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| 518 | h += 1+(s&1); |
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| 519 | } |
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| 520 | else pxw = h = s; |
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| 521 | this.mkOvQds(cx, cy, -x+1, ox-pxw+w+wod, -oy, -h+oy+hod, pxw, h); |
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| 522 | ox = x; |
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| 523 | oy = y; |
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| 524 | } |
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| 525 | else |
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| 526 | { |
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| 527 | tt -= aa*((y<<1)-0x3); |
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| 528 | st -= (aa<<1)*(--y); |
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| 529 | } |
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| 530 | } |
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| 531 | this.mkDiv(cx-a, cy-oy, s, (oy<<1)+hod); |
---|
| 532 | this.mkDiv(cx+a+wod-s+1, cy-oy, s, (oy<<1)+hod); |
---|
| 533 | } |
---|
| 534 | |
---|
| 535 | |
---|
| 536 | else |
---|
| 537 | { |
---|
| 538 | var _a = (width-((s-1)<<1))>>1, |
---|
| 539 | _b = (height-((s-1)<<1))>>1, |
---|
| 540 | _x = 0, _y = _b, |
---|
| 541 | _aa = (_a*_a)<<1, _bb = (_b*_b)<<1, |
---|
| 542 | _st = (_aa>>1)*(1-(_b<<1)) + _bb, |
---|
| 543 | _tt = (_bb>>1) - _aa*((_b<<1)-1), |
---|
| 544 | |
---|
| 545 | pxl = new Array(), |
---|
| 546 | pxt = new Array(), |
---|
| 547 | _pxb = new Array(); |
---|
| 548 | pxl[0] = 0; |
---|
| 549 | pxt[0] = b; |
---|
| 550 | _pxb[0] = _b-1; |
---|
| 551 | while (y > 0) |
---|
| 552 | { |
---|
| 553 | if (st < 0) |
---|
| 554 | { |
---|
| 555 | st += bb*((x<<1)+0x3); |
---|
| 556 | tt += (bb<<1)*(++x); |
---|
| 557 | pxl[pxl.length] = x; |
---|
| 558 | pxt[pxt.length] = y; |
---|
| 559 | } |
---|
| 560 | else if (tt < 0) |
---|
| 561 | { |
---|
| 562 | st += bb*((x<<1)+0x3) - (aa<<1)*(y-1); |
---|
| 563 | tt += (bb<<1)*(++x) - aa*(((y--)<<1)-0x3); |
---|
| 564 | pxl[pxl.length] = x; |
---|
| 565 | pxt[pxt.length] = y; |
---|
| 566 | } |
---|
| 567 | else |
---|
| 568 | { |
---|
| 569 | tt -= aa*((y<<1)-0x3); |
---|
| 570 | st -= (aa<<1)*(--y); |
---|
| 571 | } |
---|
| 572 | |
---|
| 573 | if (_y > 0) |
---|
| 574 | { |
---|
| 575 | if (_st < 0) |
---|
| 576 | { |
---|
| 577 | _st += _bb*((_x<<1)+0x3); |
---|
| 578 | _tt += (_bb<<1)*(++_x); |
---|
| 579 | _pxb[_pxb.length] = _y-1; |
---|
| 580 | } |
---|
| 581 | else if (_tt < 0) |
---|
| 582 | { |
---|
| 583 | _st += _bb*((_x<<1)+0x3) - (_aa<<1)*(_y-1); |
---|
| 584 | _tt += (_bb<<1)*(++_x) - _aa*(((_y--)<<1)-0x3); |
---|
| 585 | _pxb[_pxb.length] = _y-1; |
---|
| 586 | } |
---|
| 587 | else |
---|
| 588 | { |
---|
| 589 | _tt -= _aa*((_y<<1)-0x3); |
---|
| 590 | _st -= (_aa<<1)*(--_y); |
---|
| 591 | _pxb[_pxb.length-1]--; |
---|
| 592 | } |
---|
| 593 | } |
---|
| 594 | } |
---|
| 595 | |
---|
| 596 | var ox = 0, oy = b, |
---|
| 597 | _oy = _pxb[0], |
---|
| 598 | l = pxl.length, |
---|
| 599 | w, h; |
---|
| 600 | for (var i = 0; i < l; i++) |
---|
| 601 | { |
---|
| 602 | if (typeof _pxb[i] != "undefined") |
---|
| 603 | { |
---|
| 604 | if (_pxb[i] < _oy || pxt[i] < oy) |
---|
| 605 | { |
---|
| 606 | x = pxl[i]; |
---|
| 607 | this.mkOvQds(cx, cy, -x+1, ox+wod, -oy, _oy+hod, x-ox, oy-_oy); |
---|
| 608 | ox = x; |
---|
| 609 | oy = pxt[i]; |
---|
| 610 | _oy = _pxb[i]; |
---|
| 611 | } |
---|
| 612 | } |
---|
| 613 | else |
---|
| 614 | { |
---|
| 615 | x = pxl[i]; |
---|
| 616 | this.mkDiv(cx-x+1, cy-oy, 1, (oy<<1)+hod); |
---|
| 617 | this.mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod); |
---|
| 618 | ox = x; |
---|
| 619 | oy = pxt[i]; |
---|
| 620 | } |
---|
| 621 | } |
---|
| 622 | this.mkDiv(cx-a, cy-oy, 1, (oy<<1)+hod); |
---|
| 623 | this.mkDiv(cx+ox+wod, cy-oy, 1, (oy<<1)+hod); |
---|
| 624 | } |
---|
| 625 | } |
---|
| 626 | |
---|
| 627 | |
---|
| 628 | |
---|
| 629 | |
---|
| 630 | |
---|
| 631 | function mkOvDott(left, top, width, height) |
---|
| 632 | { |
---|
| 633 | var a = width>>1, b = height>>1, |
---|
| 634 | wod = width&1, hod = height&1, |
---|
| 635 | cx = left+a, cy = top+b, |
---|
| 636 | x = 0, y = b, |
---|
| 637 | aa2 = (a*a)<<1, aa4 = aa2<<1, bb = (b*b)<<1, |
---|
| 638 | st = (aa2>>1)*(1-(b<<1)) + bb, |
---|
| 639 | tt = (bb>>1) - aa2*((b<<1)-1), |
---|
| 640 | drw = true; |
---|
| 641 | while (y > 0) |
---|
| 642 | { |
---|
| 643 | if (st < 0) |
---|
| 644 | { |
---|
| 645 | st += bb*((x<<1)+0x3); |
---|
| 646 | tt += (bb<<1)*(++x); |
---|
| 647 | } |
---|
| 648 | else if (tt < 0) |
---|
| 649 | { |
---|
| 650 | st += bb*((x<<1)+0x3) - aa4*(y-1); |
---|
| 651 | tt += (bb<<1)*(++x) - aa2*(((y--)<<1)-0x3); |
---|
| 652 | } |
---|
| 653 | else |
---|
| 654 | { |
---|
| 655 | tt -= aa2*((y<<1)-0x3); |
---|
| 656 | st -= aa4*(--y); |
---|
| 657 | } |
---|
| 658 | if (drw) this.mkOvQds(cx, cy, -x, x+wod, -y, y+hod, 1, 1); |
---|
| 659 | drw = !drw; |
---|
| 660 | } |
---|
| 661 | } |
---|
| 662 | |
---|
| 663 | |
---|
| 664 | |
---|
| 665 | |
---|
| 666 | |
---|
| 667 | function mkRect(x, y, w, h) |
---|
| 668 | { |
---|
| 669 | var s = this.stroke; |
---|
| 670 | this.mkDiv(x, y, w, s); |
---|
| 671 | this.mkDiv(x+w, y, s, h); |
---|
| 672 | this.mkDiv(x, y+h, w+s, s); |
---|
| 673 | this.mkDiv(x, y+s, s, h-s); |
---|
| 674 | } |
---|
| 675 | |
---|
| 676 | |
---|
| 677 | |
---|
| 678 | |
---|
| 679 | |
---|
| 680 | function mkRectDott(x, y, w, h) |
---|
| 681 | { |
---|
| 682 | this.drawLine(x, y, x+w, y); |
---|
| 683 | this.drawLine(x+w, y, x+w, y+h); |
---|
| 684 | this.drawLine(x, y+h, x+w, y+h); |
---|
| 685 | this.drawLine(x, y, x, y+h); |
---|
| 686 | } |
---|
| 687 | |
---|
| 688 | |
---|
| 689 | |
---|
| 690 | |
---|
| 691 | |
---|
| 692 | function jsgFont() |
---|
| 693 | { |
---|
| 694 | this.PLAIN = 'font-weight:normal;'; |
---|
| 695 | this.BOLD = 'font-weight:bold;'; |
---|
| 696 | this.ITALIC = 'font-style:italic;'; |
---|
| 697 | this.ITALIC_BOLD = this.ITALIC + this.BOLD; |
---|
| 698 | this.BOLD_ITALIC = this.ITALIC_BOLD; |
---|
| 699 | } |
---|
| 700 | var Font = new jsgFont(); |
---|
| 701 | |
---|
| 702 | |
---|
| 703 | |
---|
| 704 | |
---|
| 705 | |
---|
| 706 | function jsgStroke() |
---|
| 707 | { |
---|
| 708 | this.DOTTED = -1; |
---|
| 709 | } |
---|
| 710 | var Stroke = new jsgStroke(); |
---|
| 711 | |
---|
| 712 | |
---|
| 713 | |
---|
| 714 | |
---|
| 715 | |
---|
| 716 | function jsGraphics(id, wnd) |
---|
| 717 | { |
---|
| 718 | this.setColor = new Function('arg', 'this.color = arg;'); |
---|
| 719 | |
---|
| 720 | |
---|
| 721 | this.getColor = new Function('return this.color'); |
---|
| 722 | |
---|
| 723 | this.setStroke = function(x) |
---|
| 724 | { |
---|
| 725 | this.stroke = x; |
---|
| 726 | if (!(x+1)) |
---|
| 727 | { |
---|
| 728 | this.drawLine = mkLinDott; |
---|
| 729 | this.mkOv = mkOvDott; |
---|
| 730 | this.drawRect = mkRectDott; |
---|
| 731 | } |
---|
| 732 | else if (x-1 > 0) |
---|
| 733 | { |
---|
| 734 | this.drawLine = mkLin2D; |
---|
| 735 | this.mkOv = mkOv2D; |
---|
| 736 | this.drawRect = mkRect; |
---|
| 737 | } |
---|
| 738 | else |
---|
| 739 | { |
---|
| 740 | this.drawLine = mkLin; |
---|
| 741 | this.mkOv = mkOv; |
---|
| 742 | this.drawRect = mkRect; |
---|
| 743 | } |
---|
| 744 | }; |
---|
| 745 | |
---|
| 746 | |
---|
| 747 | |
---|
| 748 | this.setPrintable = function(arg) |
---|
| 749 | { |
---|
| 750 | this.printable = arg; |
---|
| 751 | this.mkDiv = jg_n4? mkLyr : arg? mkDivPrint : mkDiv; |
---|
| 752 | }; |
---|
| 753 | |
---|
| 754 | |
---|
| 755 | |
---|
| 756 | this.setFont = function(fam, sz, sty) |
---|
| 757 | { |
---|
| 758 | this.ftFam = fam; |
---|
| 759 | this.ftSz = sz; |
---|
| 760 | this.ftSty = sty || Font.PLAIN; |
---|
| 761 | }; |
---|
| 762 | |
---|
| 763 | |
---|
| 764 | |
---|
| 765 | this.drawPolyline = this.drawPolyLine = function(x, y, s) |
---|
| 766 | { |
---|
| 767 | var i = x.length-1; while (i >= 0) |
---|
| 768 | this.drawLine(x[i], y[i], x[--i], y[i]); |
---|
| 769 | }; |
---|
| 770 | |
---|
| 771 | |
---|
| 772 | |
---|
| 773 | this.fillRect = function(x, y, w, h) |
---|
| 774 | { |
---|
| 775 | this.mkDiv(x, y, w, h); |
---|
| 776 | }; |
---|
| 777 | |
---|
| 778 | |
---|
| 779 | this.fillRectPattern = function(x, y, w, h, url) |
---|
| 780 | { |
---|
| 781 | this.htm += '<div style="position:absolute;'+ |
---|
| 782 | 'left:' + x + 'px;'+ |
---|
| 783 | 'top:' + y + 'px;'+ |
---|
| 784 | 'width:' + w + 'px;'+ |
---|
| 785 | 'height:' + h + 'px;'+ |
---|
| 786 | 'clip:rect(0,'+w+'px,'+h+'px,0);'+ |
---|
| 787 | 'overflow:hidden;'+ |
---|
| 788 | //'background-color:' + this.color + ';'+ |
---|
| 789 | "background-image: url('" + url + "');"+ |
---|
| 790 | "layer-background-image: url('" + url + "');"+ |
---|
| 791 | 'z-index:100;"><\/div>'; |
---|
| 792 | //alert(this.htm); |
---|
| 793 | } |
---|
| 794 | |
---|
| 795 | this.drawHandle = function(x, y, w, h, cursor) |
---|
| 796 | { |
---|
| 797 | |
---|
| 798 | this.htm += '<div style="position:absolute;'+ |
---|
| 799 | 'left:' + x + 'px;'+ |
---|
| 800 | 'top:' + y + 'px;'+ |
---|
| 801 | 'width:' + w + 'px;'+ |
---|
| 802 | 'height:' + h + 'px;'+ |
---|
| 803 | 'clip:rect(0,'+w+'px,'+h+'px,0);'+ |
---|
| 804 | 'padding: 2px;overflow:hidden;'+ |
---|
| 805 | "cursor: '" + cursor + "';"+ |
---|
| 806 | '" class="handleBox" id="' + cursor + '" ><\/div>'; |
---|
| 807 | } |
---|
| 808 | |
---|
| 809 | this.drawHandleBox = function(x, y, w, h, cursor) |
---|
| 810 | { |
---|
| 811 | |
---|
| 812 | this.htm += '<div style="position:absolute;'+ |
---|
| 813 | 'left:' + x + 'px;'+ |
---|
| 814 | 'top:' + y + 'px;'+ |
---|
| 815 | 'width:' + w + 'px;'+ |
---|
| 816 | 'height:' + h + 'px;'+ |
---|
| 817 | 'clip:rect(0,'+(w+2)+'px,'+(h+2)+'px,0);'+ |
---|
| 818 | 'overflow:hidden; border: solid 1px '+ this.color+';'+ |
---|
| 819 | "cursor: '" + cursor + "';"+ |
---|
| 820 | '" class="handleBox" id="' + cursor + '" ><\/div>'; |
---|
| 821 | |
---|
| 822 | |
---|
| 823 | } |
---|
| 824 | |
---|
| 825 | this.drawPolygon = function(x, y) |
---|
| 826 | { |
---|
| 827 | this.drawPolyline(x, y); |
---|
| 828 | this.drawLine(x[x.length-1], y[x.length-1], x[0], y[0]); |
---|
| 829 | }; |
---|
| 830 | |
---|
| 831 | |
---|
| 832 | |
---|
| 833 | this.drawEllipse = this.drawOval = function(x, y, w, h) |
---|
| 834 | { |
---|
| 835 | this.mkOv(x, y, w, h); |
---|
| 836 | }; |
---|
| 837 | |
---|
| 838 | |
---|
| 839 | |
---|
| 840 | this.fillEllipse = this.fillOval = function(left, top, w, h) |
---|
| 841 | { |
---|
| 842 | var a = (w -= 1)>>1, b = (h -= 1)>>1, |
---|
| 843 | wod = (w&1)+1, hod = (h&1)+1, |
---|
| 844 | cx = left+a, cy = top+b, |
---|
| 845 | x = 0, y = b, |
---|
| 846 | ox = 0, oy = b, |
---|
| 847 | aa2 = (a*a)<<1, aa4 = aa2<<1, bb = (b*b)<<1, |
---|
| 848 | st = (aa2>>1)*(1-(b<<1)) + bb, |
---|
| 849 | tt = (bb>>1) - aa2*((b<<1)-1), |
---|
| 850 | pxl, dw, dh; |
---|
| 851 | if (w+1) while (y > 0) |
---|
| 852 | { |
---|
| 853 | if (st < 0) |
---|
| 854 | { |
---|
| 855 | st += bb*((x<<1)+0x3); |
---|
| 856 | tt += (bb<<1)*(++x); |
---|
| 857 | } |
---|
| 858 | else if (tt < 0) |
---|
| 859 | { |
---|
| 860 | st += bb*((x<<1)+0x3) - aa4*(y-1); |
---|
| 861 | pxl = cx-x; |
---|
| 862 | dw = (x<<1)+wod; |
---|
| 863 | tt += (bb<<1)*(++x) - aa2*(((y--)<<1)-0x3); |
---|
| 864 | dh = oy-y; |
---|
| 865 | this.mkDiv(pxl, cy-oy, dw, dh); |
---|
| 866 | this.mkDiv(pxl, cy+oy-dh+hod, dw, dh); |
---|
| 867 | ox = x; |
---|
| 868 | oy = y; |
---|
| 869 | } |
---|
| 870 | else |
---|
| 871 | { |
---|
| 872 | tt -= aa2*((y<<1)-0x3); |
---|
| 873 | st -= aa4*(--y); |
---|
| 874 | } |
---|
| 875 | } |
---|
| 876 | this.mkDiv(cx-a, cy-oy, w+1, (oy<<1)+hod); |
---|
| 877 | }; |
---|
| 878 | |
---|
| 879 | |
---|
| 880 | |
---|
| 881 | this.drawString = mkLbl; |
---|
| 882 | |
---|
| 883 | |
---|
| 884 | |
---|
| 885 | this.clear = function() |
---|
| 886 | { |
---|
| 887 | this.htm = ""; |
---|
| 888 | if (this.cnv) this.cnv.innerHTML = this.defhtm; |
---|
| 889 | |
---|
| 890 | }; |
---|
| 891 | |
---|
| 892 | |
---|
| 893 | |
---|
| 894 | this.mkOvQds = function(cx, cy, xl, xr, yt, yb, w, h) |
---|
| 895 | { |
---|
| 896 | this.mkDiv(xr+cx, yt+cy, w, h); |
---|
| 897 | this.mkDiv(xr+cx, yb+cy, w, h); |
---|
| 898 | this.mkDiv(xl+cx, yb+cy, w, h); |
---|
| 899 | this.mkDiv(xl+cx, yt+cy, w, h); |
---|
| 900 | }; |
---|
| 901 | |
---|
| 902 | |
---|
| 903 | this.setStroke(1); |
---|
| 904 | this.setPrintable(false); |
---|
| 905 | this.setFont('verdana,geneva,helvetica,sans-serif', String.fromCharCode(0x31, 0x32, 0x70, 0x78), Font.PLAIN); |
---|
| 906 | this.color = '#000000'; |
---|
| 907 | this.htm = ''; |
---|
| 908 | this.wnd = wnd || window; |
---|
| 909 | |
---|
| 910 | |
---|
| 911 | if (!(jg_ie || jg_dom || jg_ihtm)) chkDHTM(); |
---|
| 912 | if (typeof id != 'string' || !id) this.paint = pntDoc; |
---|
| 913 | else |
---|
| 914 | { |
---|
| 915 | this.cnv = document.all? (this.wnd.document.all[id] || null) |
---|
| 916 | : document.getElementById? (this.wnd.document.getElementById(id) || null) |
---|
| 917 | : null; |
---|
| 918 | this.defhtm = (this.cnv && this.cnv.innerHTML)? this.cnv.innerHTML : ''; |
---|
| 919 | this.paint = jg_dom? pntCnvDom : jg_ie? pntCnvIe : jg_ihtm? pntCnvIhtm : pntCnv; |
---|
| 920 | } |
---|
| 921 | } |
---|