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<!DOCTYPE HTML> |
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<title>Canvas</title> |
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<meta name=viewport content="width=320px"> |
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<style> |
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body { |
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margin: 0; |
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} |
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#canvas-bg { |
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position: absolute; |
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} |
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|
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#panel { |
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margin: 0; |
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border-color: #dedede; |
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border-style: solid; |
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border-width: 1px 0 0 0; |
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border-top: 0; |
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padding: 0; |
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background: #efefef; |
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text-align: left; |
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} |
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|
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#panel p { |
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margin: 0; |
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padding: 2px 7px; |
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font-size: 16px; |
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line-height: 1.0; |
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} |
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|
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#panel p a{ |
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text-decoration: none; |
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} |
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|
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.eraser { |
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border: 1px #dedede solid;#dedede |
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padding: 0; |
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font-size: 12px; |
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} |
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|
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.eraser img { |
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vertical-align: bottom; |
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} |
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|
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.linewidth { |
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display: inline-block; |
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text-align: center; |
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color: #efefef; |
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border: 1px #dedede solid;#dedede |
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min-width: 12px; |
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max-width: 12px; |
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min-height: 12px; |
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max-height: 12px; |
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padding: 1px; |
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overflow: hidden; |
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} |
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.linewidth span { |
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display: inline-block; |
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margin: 0; |
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padding: 0; |
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line-height: 1.0; |
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overflow: hidden; |
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vertical-align: top; |
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font-size: 12px; |
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} |
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.linewidth-1 span { margin: 5px; border-left: 1px solid black; height: 1px; width: 1px } |
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.linewidth-2 span { margin: 5px; border-left: 2px solid black; height: 2px; width: 2px } |
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.linewidth-3 span { margin: 4px; border-left: 3px solid black; height: 3px; width: 3px } |
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.linewidth-4 span { margin: 4px; border-left: 4px solid black; height: 4px; width: 4px } |
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.linewidth-8 span { margin: 3px; border-left: 8px solid black; height: 8px; width: 8px } |
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</style> |
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|
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<canvas width=320 height=200 id=canvas-bg></canvas> |
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<canvas width=320 height=200 id=canvas></canvas> |
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|
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<div id="panel"> |
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<p class="color"> |
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<a href="javascript:setProp('fillStyle', '#FFFFFF')" style="color: #FFFFFF">■</a> |
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<a href="javascript:setProp('fillStyle', '#DCDDDD')" style="color: #DCDDDD">■</a> |
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<a href="javascript:setProp('fillStyle', '#9ea1a3')" style="color: #9ea1a3">■</a> |
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<a href="javascript:setProp('fillStyle', '#2B2B2B')" style="color: #2B2B2B">■</a> |
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<a href="javascript:setProp('fillStyle', '#D9333F')" style="color: #D9333F">■</a> |
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<a href="javascript:setProp('fillStyle', '#762f07')" style="color: #762f07">■</a> |
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<a href="javascript:setProp('fillStyle', '#F5B199')" style="color: #F5B199">■</a> |
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<a href="javascript:setProp('fillStyle', '#FFDB4F')" style="color: #FFDB4F">■</a> |
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<a href="javascript:setProp('fillStyle', '#7EBEAB')" style="color: #7EBEAB">■</a> |
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<a href="javascript:setProp('fillStyle', '#2F5D50')" style="color: #2F5D50">■</a> |
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<a href="javascript:setProp('fillStyle', '#89C3EB')" style="color: #89C3EB">■</a> |
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<a href="javascript:setProp('fillStyle', '#706CAA')" style="color: #706CAA">■</a> |
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|
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<a href="javascript:void(0)" onclick="inputCustomColor(this)" style="color: black">■</a> |
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<a href="javascript:eraser()" class=eraser><img src="http://f.hatena.ne.jp/images/fotolife/h/hatenahaiku/20080710/20080710114446.gif" width=16 height=16 alt=Eraser></a> |
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</p> |
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|
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<p class="width"> |
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<a href="javascript:setPixelSize(1)" class="linewidth linewidth-1"><span>1</span></a> |
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<a href="javascript:setPixelSize(2)" class="linewidth linewidth-2"><span>2</span></a> |
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<a href="javascript:setPixelSize(3)" class="linewidth linewidth-3"><span>3</span></a> |
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<a href="javascript:setPixelSize(4)" class="linewidth linewidth-4"><span>4</span></a> |
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<a href="javascript:setPixelSize(8)" class="linewidth linewidth-8"><span>8</span></a> |
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</p> |
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</div> |
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|
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<script> |
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var canvas = document.getElementById ('canvas'); |
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var canvasGrid = document.getElementById ('canvas-bg'); |
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var ctx = canvas.getContext ('2d'); |
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var ctxGrid = canvasGrid.getContext ('2d'); |
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|
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var width = canvas.width; |
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var height = canvas.height; |
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var pixel = 8; |
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|
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ctxGrid.fillStyle = '#eee'; |
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for (var i = 0; i < width / pixel; i++) { |
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ctxGrid.fillRect (i * pixel, 0, 1, height); |
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} |
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for (var i = 0; i < height / pixel; i++) { |
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ctxGrid.fillRect (0, i * pixel, width, 1); |
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} |
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|
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ctx.fillStyle = 'black'; |
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var eraserMode = false; |
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canvasGrid.addEventListener ('mousemove', function (ev) { |
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// Firefox does not have |offsetX| but WebKit does. |
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var x = ev.offsetX - (ev.offsetX % pixel); |
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var y = ev.offsetY - (ev.offsetY % pixel); |
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ctx[eraserMode ? 'clearRect' : 'fillRect'] (x, y, pixel, pixel); |
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}, false); |
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|
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function eraser () { |
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eraserMode = true; |
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} |
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|
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function setProp (n, v) { |
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ctx[n] = v; |
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eraserMode = false; |
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} |
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|
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function inputCustomColor(button) { |
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var color = prompt('Specify color', button.style.color); |
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if (color) { |
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setProp('fillStyle', color); |
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button.style.color = color; |
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} |
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} |
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|
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function setPixelSize (size) { |
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pixel = size; |
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} |
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</script> |
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<!-- |
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|
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Copyright 2011 Wakaba <w@suika.fam.cx>. |
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|
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Permission is hereby granted, free of charge, to any person obtaining |
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a copy of this software and associated documentation files (the |
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"Software"), to deal in the Software without restriction, including |
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without limitation the rights to use, copy, modify, merge, publish, |
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distribute, sublicense, and/or sell copies of the Software, and to |
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permit persons to whom the Software is furnished to do so, subject to |
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the following conditions: |
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|
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The above copyright notice and this permission notice shall be |
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included in all copies or substantial portions of the Software. |
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|
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
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|
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--> |
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