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24 lines
675 B
JavaScript
24 lines
675 B
JavaScript
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function setCanvasOffset (offsetLeft, offsetTop) {
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//horizontal offset
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var minXOffset = -canvasSize[0]*zoom+ 164;
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var maxXOffset = window.innerWidth - 148
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if (offsetLeft < minXOffset)
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canvas.style.left = minXOffset +'px';
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else if (offsetLeft > maxXOffset)
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canvas.style.left = maxXOffset +'px';
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else
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canvas.style.left = offsetLeft +'px';
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//vertical offset
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var minYOffset = -canvasSize[1]*zoom + 164;
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var maxYOffset = window.innerHeight-100;
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if (offsetTop < minYOffset)
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canvas.style.top = minYOffset +'px';
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else if (offsetTop > maxYOffset)
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canvas.style.top = maxYOffset +'px';
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else
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canvas.style.top = offsetTop +'px';
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}
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