When viewing the field.OuterXml in the XML Visualizer the initial zoom level is set very high. When testing the application from VS other instances of increased zoom levels in other locations where XML is rendered. Interestingly, only this particular piece seems to be affected, the zoom for everything else is normal.
I've been looking for a setting that might affect this, but haven't managed to find anything that would let me set it. CTRL+Scroll works to adjust it as expected.
Any suggestions? I haven't been able to locate anything that seemed relevent or any other people with this problem. I even tried Bing thinking it might give me more useful results when asking about VS.
I have tried the following
Zoom out from IE - This didn't have an effect, IE defaults to 100% zoom when opened.
Related
I have for a very long time experienced a hugely annoying problem with the TStatusBar VCL control, a thin wrapper around the Win32 status bar control.
Since this appears to me as a very common and frustrating issue, I am very surprised Google (and StackOverflow) doesn't seem to know much about it.
The problem is that the status bar text becomes very blurred when it hasn't changed for a while; the precise conditions are still unknown to me. But I see this every day:
If one of the panels has its text updated, the new text is rendered correctly (see last panel):
Is this something that only happens when I am in the vicinity of running Delphi processes, or is it indeed a known issue? More importantly, is there a known cure? (And, academically, why does this happen? It wouldn't surprise me if it is related to transparent drawing of anti-aliased text by code originally designed for unthemed Win9x.)
I have tried to enable double-buffering, but I am not sure if that completely resolves the issue. (I have seen even worse behaviour in non-double-buffered list view controls, which is resolved by making them double-buffered.)
I made all status bars in my applications double-buffered a week ago, and I haven't seen any blurred text in any of them since then. Previously, I saw severely blurred text daily. Hence, it seems like this issue - whatever is causing it - can be fixed by making the status bars double buffered.
We are using a png/8 sprite on a client's website. He is reporting the image is appearing distorted for him and on other computers on the company.
Here's how it should look:
http://i.imgur.com/wfV7ReR.jpg
And here is the print screen the client sent us:
http://i.imgur.com/sWKDYKU.jpg
I have tried donloading and exporting it again, uploading again. The problem is: On our computers it looks fine, so it's hard to test it. Our client is viewing it in IE: 11 and Google chrome: 41.0.272.118.
Has anyone seen this type of error before?
It may be the device-pixel-ratio is better than 160dpi; that'd throw off some CSS used for spriting.
If this shows "1" for you and a different value for them, I'd dig farther on that one. You could probably test this by hitting the site with an iPhone or newer Android device; they have >1.0 pixel ratios.
http://www.devicepixelratio.com/
Edit: this would also show up across-browsers on their end, as it's tied to the hardware, and not IE11.
My bet in that case is the PNG is somehow broken.
graphicdesign.stackexchange.com might be more useful; I don't know if this is fixable in CSS. (Might be; look for hacks around image backgrounds as well.)
Looking around, if you have Photoshop, you might try saving the original image, then creating a copy and changing this setting:
Image -> Mode -> Check "RGB Color"
Alternatively, try opening the image in pixlr.com, change anything however slightly, then save and use that one.
My strong suspicion is something in the way the PNG/8 is saved (maybe the alpha channel) is the issue, not any CSS you've written. Good luck!
I've been working on a Skrollr site but it appears to be getting excessively jerky. I've had dev tools open and have found a few really really slow frames, but I don't have the knowledge to track down exactly what is going wrong.
My observations are:
it is slower scrolling down than up
intermittently it is absolutely fine
So far I have tried a few things
Given the first segment a translateZ value to try and separate out the paint (I have no idea if this is correct – I'm really at the limit of my knowledge!)
Had a go getting rid of the relative animations (data-top-bottom etc) which could well be slowing things down, but after changing everything back to static numbers (data-1000 etc) its still almost identical
Can anyone shed any light on this? The URL is http://fieldviewfestival.co.uk/500 ... power up!
I think I've fixed it!
The webfonts weren't fully loaded when skrollr kicked in. After initializing it I added a
$(window).load(function(){
Where I refreshed skrollr I then added the following:
s.refresh();
I think the main problem was that the height of the page wasn't calculated by the time skrollr kicked in.
Also I had a strange scrollbar left over (so a scrollbar on the body AND html), which skrollr hadn't removed so I also added above that function
$(window).trigger('resize');
The final initialize looks like this:
var s = skrollr.init();
$(window).load(function(){
// console.log("Loaded");
$(window).trigger('resize');
s.refresh();
});
NB Silly miskate I made as well, don't use the function $(document).load(
I'm working on a site with lots of CSS3 transitions (which are hardware accelerated) and high memory objects (for example, an array of 39 objects, each containing the full html source for a typical online news article) and I'm noticing some very choppy/jittery scrolling, which I've been unable to debug.
I've kept these high memory objects out of the DOM, which should prevent them from affecting DOM performance, however, I can't help but think that they are still having a negative effect. I don't have code samples to post because I'm unsure of whether this is even an issue.
Please go to this site (Orange) and click on an article tile. In the reader div that pops up over the page, try scrolling as you normally would. Does it feel choppy/jittery? Do you have any suggestions on how to improve this?
CSS3 transitions, opacity, text and box-shadows and the like are certainly known to impact rendering speeds. In fact, even sites with heavy use of text-shadow alone can cause choppy scrolling on the average computer. Combining this with heavy use of javascript seems like a recipe for choppy web browsing.
edit: The loading animation on the o in orange is pretty awesome!
Yes, that's jittery. A page with a lot of Javascript will do that and frameworks like jQuery won't help at all. I'd recommend recoding as much as you can without using jQuery and passing it through JSLint (http://www.jslint.com/).
Try using Chrome's developer tools too to get an idea of what the bottleneck is.
Try disabling Javascript too and seeing if it's any better. If it isn't, then you know where your problem lies.
I’m building a mobile web application, and even though I’m still in a prototyping kind of the process, I’m having a hard time fixing certain performance problems.
The application itself (works all smooth in desktop browsers, but significantly sluggish in Mobile Safari): Hancards webapp prototype. You may login as mifeng:wangwang or create a new user.
The overall clumsy performance could be tolerable though, except for one thing: the browser simply crashes (!) when you open a set page, tap ‘view’ (enlarge all cards) and then try to go back to the previous page.
The code that gets executed when ‘view’ is tapped is this (very sluggish by itself as well; any way to improve it?):
if ($(this).hasClass('big')) {
$('.card').unwrap().removeClass('big flippable').addClass('small');
$(this).removeClass('big');
}
else {
$('.card').wrap('<div class="bigCardWrap" />').removeClass('small').addClass('big flippable');
$(this).addClass('big');
}
And another thing, a pretty weird bug. Very often the ‘word of the day‘ block won’t display the text node for the last element (<div class="meaning">), even though it’s in the code. The text will not show unless you ‘shake’ the DOM anyhow (unticking and ticking back one of the associated CSS properties can also achieve that). This happens in both desktop and mobile Safari browsers.
The code that writes it in there is this:
// While we are here, also display the Word of the day
$.post('ajax.php', {action: 'stuff:showWotd'}, function(data) {
// Decode the received data
var msg = decodeResponse(data);
// Insert the values
$('.wotd .hanzi').text(msg.content[0]['hanzi']);
$('.wotd .pinyin').text(msg.content[0]['pinyin']);
$('.wotd .meaning').text(msg.content[0]['meaning']);
});
I don’t expect you to advice me on how to fix the performance of the whole application (I will probably have to revise the overall scope of the project instead of trying to find workarounds), but I at least would like to see how to solve these two problems. Thank you!
The only performance issue I see in the script is the wrap/unwrap calls - adding and removing elements from the DOM tends to be fairly slow, and you can probably get the same effect by always having a wrapper element and changing its class rather than adding or removing it.
However, the performance issues you are seeing are most likely in your css:
3D transforms can be much faster than 2D due to hardware acceleration. It looks like you already have this, though you do need to be careful about which elements it is applied to
Shadows have real performance issues, especially when animated. Removing them will probably fix most of the slowness.
Rearranging background images can help - A single background image under transparent pages is faster than having a background image for each page.