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author | Dimitri van Heesch <dimitri@stack.nl> | 2011-06-06 19:49:53 (GMT) |
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committer | Dimitri van Heesch <dimitri@stack.nl> | 2011-06-06 19:49:53 (GMT) |
commit | de297f6d77f3861b649f3fcba443483d6be6afe9 (patch) | |
tree | b158d4e26359c261b119f485d1d4c69a6034663c /src/svgpan_js.h | |
parent | c604d141eb8b0708022a3e4b48b0b1871b692aa6 (diff) | |
download | Doxygen-de297f6d77f3861b649f3fcba443483d6be6afe9.zip Doxygen-de297f6d77f3861b649f3fcba443483d6be6afe9.tar.gz Doxygen-de297f6d77f3861b649f3fcba443483d6be6afe9.tar.bz2 |
Release-1.7.4-20110606
Diffstat (limited to 'src/svgpan_js.h')
-rw-r--r-- | src/svgpan_js.h | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/src/svgpan_js.h b/src/svgpan_js.h new file mode 100644 index 0000000..0714d6d --- /dev/null +++ b/src/svgpan_js.h @@ -0,0 +1,271 @@ +"/**\n" +" * The code below is based on SVGPan Library 1.2 and was modified for doxygen\n" +" *\n" +" * This code is licensed under the following BSD license:\n" +" *\n" +" * Copyright 2009-2010 Andrea Leofreddi <a.leofreddi@itcharm.com>. All rights reserved.\n" +" * \n" +" * Redistribution and use in source and binary forms, with or without modification, are\n" +" * permitted provided that the following conditions are met:\n" +" * \n" +" * 1. Redistributions of source code must retain the above copyright notice, this list of\n" +" * conditions and the following disclaimer.\n" +" * \n" +" * 2. Redistributions in binary form must reproduce the above copyright notice, this list\n" +" * of conditions and the following disclaimer in the documentation and/or other materials\n" +" * provided with the distribution.\n" +" * \n" +" * THIS SOFTWARE IS PROVIDED BY Andrea Leofreddi ``AS IS'' AND ANY EXPRESS OR IMPLIED\n" +" * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND\n" +" * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Andrea Leofreddi OR\n" +" * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n" +" * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR\n" +" * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON\n" +" * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING\n" +" * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF\n" +" * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n" +" * \n" +" * The views and conclusions contained in the software and documentation are those of the\n" +" * authors and should not be interpreted as representing official policies, either expressed\n" +" * or implied, of Andrea Leofreddi.\n" +" */\n" +"\n" +"var root = document.documentElement;\n" +"var state = 'none';\n" +"var stateOrigin;\n" +"var stateTf = root.createSVGMatrix();\n" +"var cursorGrab = ' url(\"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAOCAMAAAAolt3jAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAAlQTFRFAAAA////////c3ilYwAAAAN0Uk5T//8A18oNQQAAAD1JREFUeNp0zlEKACAIA9Bt9z90bZBZkQj29qFBEuBOzQHSnWTTyckEfqUuZgFvslH4ch3qLCO/Kr8cAgwATw4Ax6XRCcoAAAAASUVORK5CYII=\"), move';\n" +"var zoomSteps = 10;\n" +"var zoomInFactor;\n" +"var zoomOutFactor;\n" +"var windowWidth;\n" +"var windowHeight;\n" +"var svgDoc;\n" +"var minZoom;\n" +"var maxZoom;\n" +"if (!window) window=this;\n" +"\n" +"/**\n" +" * Register handlers\n" +" */\n" +"function init(evt) \n" +"{\n" +" svgDoc = evt.target.ownerDocument;\n" +" if (window.innerHeight) // Firefox\n" +" {\n" +" windowWidth = window.innerWidth;\n" +" windowHeight = window.innerHeight;\n" +" }\n" +" else if (document.documentElement.clientWidth) // Chrome/Safari\n" +" {\n" +" windowWidth = document.documentElement.clientWidth\n" +" windowHeight = document.documentElement.clientHeight\n" +" }\n" +" else\n" +" {\n" +" windowWidth = 800;\n" +" windowHeight = 600;\n" +" }\n" +" minZoom = windowHeight/viewHeight;\n" +" maxZoom = 1.5;\n" +" zoomInFactor = Math.pow(maxZoom/minZoom,1.0/zoomSteps);\n" +" zoomOutFactor = 1.0/zoomInFactor;\n" +"\n" +" var g = svgDoc.getElementById('viewport');\n" +" var bb = g.getBBox();\n" +" var a = 'scale('+minZoom+') rotate(0) translate('+((innerWidth-viewWidth*minZoom)/(2*minZoom))+' '+viewHeight+')';\n" +"\n" +" g.setAttribute('transform',a);\n" +"\n" +" setAttributes(root, {\n" +" \"onmousedown\" : \"handleMouseDown(evt)\",\n" +" \"onmousemove\" : \"handleMouseMove(evt)\",\n" +" \"onmouseup\" : \"handleMouseUp(evt)\"\n" +" });\n" +"\n" +" if (window.addEventListener)\n" +" {\n" +" if (navigator.userAgent.toLowerCase().indexOf('webkit') >= 0 || navigator.userAgent.toLowerCase().indexOf(\"opera\") >= 0)\n" +" window.addEventListener('mousewheel', handleMouseWheel, false); // Chrome/Safari\n" +" else\n" +" window.addEventListener('DOMMouseScroll', handleMouseWheel, false); // Others\n" +" }\n" +"}\n" +"\n" +"window.onresize=function()\n" +"{\n" +" if (svgDoc)\n" +" {\n" +" var newWindowWidth;\n" +" if (window.innerWidth) // Firefox\n" +" {\n" +" newWindowWidth = window.innerWidth;\n" +" }\n" +" else if (document.documentElement.clientWidth) // Chrome/Safari\n" +" {\n" +" newWindowWidth = document.documentElement.clientWidth\n" +" }\n" +" if (newWindowWidth)\n" +" {\n" +" var g = svgDoc.getElementById(\"viewport\");\n" +" var n = g.getCTM();\n" +" n = n.translate((newWindowWidth-windowWidth)/(2*minZoom),0);\n" +" setCTM(g, n);\n" +" stateTf = stateTf.multiply(n.inverse());\n" +" windowWidth = newWindowWidth;\n" +" }\n" +" }\n" +"}\n" +"\n" +"/**\n" +" * Instance an SVGPoint object with given event coordinates.\n" +" */\n" +"function getEventPoint(evt) \n" +"{\n" +" var p = root.createSVGPoint();\n" +" p.x = evt.clientX;\n" +" p.y = evt.clientY;\n" +" return p;\n" +"}\n" +"\n" +"/**\n" +" * Sets the current transform matrix of an element.\n" +" */\n" +"function setCTM(element, matrix) \n" +"{\n" +" var s = \"matrix(\" + matrix.a + \",\" + matrix.b + \",\" + matrix.c + \",\" + matrix.d + \",\" + matrix.e + \",\" + matrix.f + \")\";\n" +" element.setAttribute(\"transform\", s);\n" +"}\n" +"\n" +"/**\n" +" * Sets attributes of an element.\n" +" */\n" +"function setAttributes(element, attributes)\n" +"{\n" +" for (i in attributes)\n" +" element.setAttributeNS(null, i, attributes[i]);\n" +"}\n" +"\n" +"function doZoom(g,point,zoomFactor)\n" +"{\n" +" var p = point.matrixTransform(g.getCTM().inverse());\n" +" var k = root.createSVGMatrix().translate(p.x, p.y).scale(zoomFactor).translate(-p.x, -p.y);\n" +" var n = g.getCTM().multiply(k);\n" +" var s = Math.max(n.a,n.d);\n" +" if (s>maxZoom) n=n.translate(p.x,p.y).scale(maxZoom/s).translate(-p.x,-p.y);\n" +" else if (s<minZoom) n=n.translate(p.x,p.y).scale(minZoom/s).translate(-p.x,-p.y);\n" +" setCTM(g, n);\n" +" stateTf = stateTf.multiply(n.inverse());\n" +"}\n" +"\n" +"/**\n" +" * Handle mouse move event.\n" +" */\n" +"function handleMouseWheel(evt) \n" +"{\n" +" if (!evt) evt = window.evt;\n" +" if (evt.preventDefault) evt.preventDefault();\n" +" evt.returnValue = false;\n" +"\n" +" if (state!='pan')\n" +" {\n" +"\n" +" var delta;\n" +"\n" +" if(evt.wheelDelta)\n" +" {\n" +" if (window.opera)\n" +" {\n" +" delta = evt.wheelDelta / 720; // Opera\n" +" }\n" +" else\n" +" {\n" +" delta = evt.wheelDelta / 7200; // Chrome/Safari/Opera\n" +" }\n" +" }\n" +" else\n" +" {\n" +" delta = evt.detail / -180; // Mozilla\n" +" }\n" +"\n" +" var svgDoc = evt.target.ownerDocument;\n" +" var g = svgDoc.getElementById(\"viewport\");\n" +" var p = getEventPoint(evt);\n" +" doZoom(g,p,1+delta);\n" +" }\n" +"}\n" +"\n" +"/**\n" +" * Handle mouse move event.\n" +" */\n" +"function handleMouseMove(evt) \n" +"{\n" +" if(evt.preventDefault)\n" +" evt.preventDefault();\n" +"\n" +" evt.returnValue = false;\n" +"\n" +" var g = svgDoc.getElementById(\"viewport\");\n" +"\n" +" if (state == 'pan') \n" +" {\n" +" // Pan mode\n" +" var p = getEventPoint(evt).matrixTransform(stateTf);\n" +" setCTM(g,stateTf.inverse().translate(p.x - stateOrigin.x, p.y - stateOrigin.y));\n" +" } \n" +"}\n" +"\n" +"/**\n" +" * Handle click event.\n" +" */\n" +"function handleMouseDown(evt) \n" +"{\n" +" if(evt.preventDefault)\n" +" evt.preventDefault();\n" +" evt.returnValue = false;\n" +" var g = svgDoc.getElementById(\"viewport\");\n" +" state = 'pan';\n" +" stateTf = g.getCTM().inverse();\n" +" stateOrigin = getEventPoint(evt).matrixTransform(stateTf);\n" +" g.style.cursor = cursorGrab;\n" +"}\n" +"\n" +"/**\n" +" * Handle mouse button release event.\n" +" */\n" +"function handleMouseUp(evt) \n" +"{\n" +" if (evt.preventDefault) evt.preventDefault();\n" +" evt.returnValue = false;\n" +" var g = svgDoc.getElementById(\"viewport\");\n" +" g.style.cursor = \"default\";\n" +" // Quit pan mode\n" +" state = '';\n" +"}\n" +"\n" +"function handlePan(x,y)\n" +"{\n" +" var g = svgDoc.getElementById(\"viewport\");\n" +" setCTM(g,g.getCTM().translate(x*20/minZoom,y*20/minZoom));\n" +"}\n" +"\n" +"/**\n" +" * Dumps a matrix to a string (useful for debug).\n" +" */\n" +"function dumpMatrix(matrix) \n" +"{\n" +" var s = \"[ \" + matrix.a + \", \" + matrix.c + \", \" + matrix.e + \"\\n \" + matrix.b + \", \" + matrix.d + \", \" + matrix.f + \"\\n 0, 0, 1 ]\";\n" +" return s;\n" +"}\n" +"\n" +"function handleZoom(evt,direction)\n" +"{\n" +" var g = svgDoc.getElementById(\"viewport\");\n" +" var factor = direction=='in' ? zoomInFactor : zoomOutFactor;\n" +" var m = g.getCTM();\n" +" var p = root.createSVGPoint();\n" +" p.x = windowWidth/2; \n" +" p.y = windowHeight/2;\n" +" doZoom(g,p,factor);\n" +"}\n" +"\n" |