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Pan & Zoom Image
... of a Canvas. Implement Mouse Up, Down, and Move events to move the Canvas.Top, Canvas.Left properties. When down, you mark a isDraggingFlag to true, when up you set the flag to false. On move, you check if the flag is set, if it is you offset the Canvas.Top and Canvas.Left properties on the image w...
The differences between .build, .create, and .create! and when should they be used?
...ect was saved or not. This has implications for the code above in that the top branch of the if statement will always be executed even if the object fails validations and is not saved.
If you use create with branching logic you are at risk of silent failures which is not the case if you use new + s...
When is JavaScript's eval() not evil?
... that code-injection in the browser is not a problem? XSS has been in the top 3 vulns on OWASP's top 10 list for several years running.
– Mike Samuel
Aug 3 '12 at 22:42
...
Twitter Bootstrap: div in container with 100% height
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you need to add padding-top to "fill" element, plus add box-sizing:border-box - sample here bootply
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How to make a HTML Page in A4 paper size page(s)?
...0;
page-break-before: always;
margin: 0;
border-top: none;
}
}
body, p, a,
span, td {
font-size: 9pt;
font-family: Arial, Helvetica, sans-serif;
}
body {
margin-left: 2em;
margin-right: 2em;
}
.page {
height: 947px;
padding-top: 5px;
p...
When exactly is it leak safe to use (anonymous) inner classes?
... difference between these are:
Static Nested Classes:
Are considered "top-level".
Do not require an instance of the containing class to be constructed.
May not reference the containing class members without an explicit reference.
Have their own lifetime.
Inner Nested Classes:
Always require...
What is “above-the-fold content” in Google Pagespeed?
..., maybe one targeting smartphones, one for tablets, and one for larger desktops.
As for what CSS they are talking about, they are really intending all CSS needed to fully style whatever content is displayed ATF. To determine the load time of your ATF content, they are going to take a screen shot of...
How do you add an in-app purchase to an iOS application?
...ode project, and go to the application manager (blue page-like icon at the top of where your methods and header files are) click on your app under targets (should be the first one) then go to general. At the bottom, you should see linked frameworks and libraries click the little plus symbol and add ...
Java packages com and org
... is always written in all-lowercase ASCII letters and should be one of the top-level domain names, currently com, edu, gov, mil, net, org, or one of the English two-letter codes identifying countries as specified in ISO Standard 3166, 1981.
Subsequent components of the package name vary according to...
How is TeamViewer so fast?
...n compensation algorithm, because most of the actual change in generic desktop usage is linear movement of elements (scrolling text, moving windows, etc. opposed to transformation of elements).
The DirectX 3D performance of 1 FPS seems to confirm my guess to some extent.
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