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Centering floating divs within another div
...ter; /* align horizontal */
and the floated children get aligned center (DEMO)
Just for fun, to get vertical alignment as well just add:
align-items: center; /* align vertical */
DEMO
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overlay two images in android to set an imageview
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You can use the code below to solve the problem or download demo here
Create two functions to handle each.
First, the canvas is drawn and the images are drawn on top of each other from point (0,0)
On button click
public void buttonMerge(View view) {
Bitmap bigImage = Bi...
Which keycode for escape key with jQuery
...ress doesn't seem to be handled consistently between browsers (try out the demo at api.jquery.com/keypress in IE vs Chrome vs Firefox -- sometimes it doesn't register, and both 'which' and 'keyCode' vary) whereas keyup is consistent. e.which is the jquery-normalized value, so 'which' or 'keyCode' s...
Invoke a callback at the end of a transition
...#myid").transition().style("opacity","0").each("end", myCallback);
This demo uses the "end" event to chain many transitions in order.
The donut example that ships with D3 also uses this to chain together multiple transitions.
Here's my own demo that changes the style of elements at the start and ...
SecItemAdd and SecItemCopyMatching returns error code -34018 (errSecMissingEntitlement)
...her issue. I’m developing static library, that is used by (among others) Demo application. The above solution works for Demo application project, but when I try to unit test my static library project, I have exactly the same error. And the problem is that my static library project doesn’t have t...
How to get all possible combinations of a list’s elements?
... tuple(sorted(Counter(...).elements())) if you need it to be hashable)
Demo
>>> list(combinations(range(4)))
[set(), {3}, {2}, {2, 3}, {1}, {1, 3}, {1, 2}, {1, 2, 3}, {0}, {0, 3}, {0, 2}, {0, 2, 3}, {0, 1}, {0, 1, 3}, {0, 1, 2}, {0, 1, 2, 3}]
>>> list(combinations('abcd'))
[s...
Get and set position with jQuery .offset()
...o position elements relative to each other. For complete documentation and demo see: http://jqueryui.com/demos/position/#option-offset.
Here's one way to position your elements using the position feature:
var options = {
"my": "top left",
"at": "top left",
"of": ".layer1"
};
$(".layer2...
twitter bootstrap autocomplete dropdown / combobox with Knockoutjs
... where it gives you a list of users or topics based on @ or # tags,
view demo here: http://www.jqueryscript.net/demo/Twitter-Like-Mentions-Auto-Suggesting-Plugin-with-jQuery-Bootstrap-Suggest/
in this one you can easily change the @ and # to anything you want
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How to center an element horizontally and vertically
...djust the horizontal text-alignment, unless you want text to be centered
Demo :
body {
margin : 0;
}
.outer-container {
display: table;
width: 80%;
height: 120px;
background: #ccc;
}
.inner-container {
display: table-cell;
vertical-align: middle;
...
OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
...decided to accept the challenge.
I made some modifications to the squares demo present in OpenCV and the resulting C++ code below is able to detect a sheet of paper in the image:
void find_squares(Mat& image, vector<vector<Point> >& squares)
{
// blur will enhance edge dete...