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How to draw a rounded Rectangle on HTML Canvas?
...r radius
* @param {CanvasRenderingContext2D} ctx
* @param {Number} x The top left x coordinate
* @param {Number} y The top left y coordinate
* @param {Number} width The width of the rectangle
* @param {Number} height The height of the rectangle
* @param {Number} [radius = 5] The corner radius;...
How to request a random row in SQL?
... RANDOM()
LIMIT 1
Select a random row with Microsoft SQL Server:
SELECT TOP 1 column FROM table
ORDER BY NEWID()
Select a random row with IBM DB2
SELECT column, RAND() as IDX
FROM table
ORDER BY IDX FETCH FIRST 1 ROWS ONLY
Select a random record with Oracle:
SELECT column FROM
( SELECT co...
ReactJS: Modeling Bi-Directional Infinite Scrolling
...this.oldRowStart = this.rowStart;
var newRowStart;
var distanceFromTopOfVisibleRows = infiniteContainer.getBoundingClientRect().top - visibleRowsContainer.getBoundingClientRect().top;
var distanceFromBottomOfVisibleRows = visibleRowsContainer.getBoundingClientRect().bottom - infiniteCont...
Prevent BODY from scrolling when a modal is opened
I want my body to stop scrolling when using the mousewheel while the Modal (from http://twitter.github.com/bootstrap ) on my website is opened.
...
Base64Util 拓展：支持图像框、画布、文件、文本字符串、图像精灵base64编...
...e.clientX - element.offsetLeft; offsetY = e.clientY - element.offsetTop; return false; // 防止文本选中 }; // 鼠标移动时拖动元素 document.onmousemove = function(e) { if (!isDragging) return; element.style.left = (e.clientX - offsetX) + '...
Change the Right Margin of a View Programmatically?
...arams();
params.setMargins(0, 0, 10, 0); //substitute parameters for left, top, right, bottom
tv.setLayoutParams(params);
I can't test it right now, so my casting may be off by a bit, but the LayoutParams are what need to be modified to change the margin.
NOTE
Don't forget that if your TextView is...
Rounded UIView using CALayers - only some corners - How?
... but I'm sure you can tidy it up a little bit.
static void addRoundedRectToPath(CGContextRef context, CGRect rect, float radius, int roundedCornerPosition)
{
// all corners rounded
// CGContextMoveToPoint(context, rect.origin.x, rect.origin.y + radius);
// CGContextAddLineToPoint(co...
What exactly does git's “rebase --preserve-merges” do (and why?)
...ts made in one part of the commit graph, and then replays those commits on top of another part. The differences with --preserve-merges concern which commits are selected for replay and how that replaying works for merge commits.
To be more explicit about the main differences between normal and merg...
Ruby optional parameters
...ber of arguments #{param_len} for 2 || 3." end
bottom = params[0]
top = params[1]
keep = params[2]
if keep.nil? == false
if keep == 1
self.map{|x| if x >= bottom and x <= top then x = x.chr else x = x.to_s end}
else
raise "Invalid option #{ke...
How to change the height of a ?
... In Firefox, it creates the margin double-size. You need to specify margin-top: 10px;
– awe
Sep 11 '09 at 9:05
8
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