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  • Interpreting WPF Dependency properties as a set.

    - by moogs
    So, I have a control. It displays an image based some xml document and an optional parameter "Document" - XML document "RenderingOption" - optional image-rendering ( sharpen, soften ) So: <XMLRenderingWidget Document="xxxxxx"/> The above will render the document once <XMLRenderingWidget Document="xxxxxx" RenderingOption="Sharpen"/> The above will, sometimes render the document once, more oftentimes: Perform the rendering of the document as if no Rendering was set then, re-render the document with the Sharpen option I do the rendering on the PropertyChangedCallback assigned to the property. How do I tell the control to "hey, before doing the rendering, apply the changes on the other properties being set, too" Is this not possible? Should I bundle them up as one property instead?

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  • Core Animation performance on iphone

    - by nico
    I'm trying to do some animations using Core Animation on the iphone. I'm using CABasicAnimation on CALayer. It's a straight forward animation from a random place at the top of the screen to the bottom of the screen at random speed, I have 30 elements that doing the same animation continuously until another action happens. But the performance on the iPhone 3G is very sluggish when the animations start. The image is only 8k. Is this the right approach? How should I change so it performs better. // image cached somewhere else. CGImageRef imageRef = [[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:name ofType:@"png"]] CGImage]; - (void)animate:(NSTimer *)timer { int startX = round(radom() % 320); float speed = 1 / round(random() % 100 + 2); CALayer *layer = [CALayer layer]; layer.name = @"layer"; layer.contents = imageRef; // cached image layer.frame = CGRectMake(0, 0, CGImageGetWidth(imageRef), CGImageGetHeight(imageRef)); int width = layer.frame.size.width; int height = layer.frame.size.height; layer.frame = CGRectMake(startX, self.view.frame.origin.y, width, height); [effectLayer addSublayer:layer]; CGPoint start = CGPointMake(startX, 0); CGPoint end = CGPointMake(startX, self.view.frame.size.height); float repeatCount = 1e100; CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"position"]; animation.delegate = self; animation.fromValue = [NSValue valueWithCGPoint:start]; animation.toValue = [NSValue valueWithCGPoint:end]; animation.duration = speed; animation.repeatCount = repeatCount; animation.autoreverses = NO; animation.removedOnCompletion = YES; animation.fillMode = kCAFillModeForwards; [layer addAnimation:animation forKey:@"position"]; } The animations are fired off using a NSTimer. animationTimer = [NSTimer timerWithTimeInterval:0.2 target:self selector:@selector(animate:) userInfo:nil repeats:YES]; [[NSRunLoop currentRunLoop] addTimer:animationTimer forMode:NSDefaultRunLoopMode];

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  • Choosing between YUI Charts or Google Visualization API

    - by r2b2
    Hello , I'm a bit stuck with which charting library I will use in my project. Im stuck with this two (but also open for other suggestions) For YUI Charts : Pro : - Very robust and configurable Cons : - Uses flash 9 , which might potentially be inaccessible for users without up to date flash version - Does not support export to image (for flash versions < 10 only) For Google Visualization API pros: - small file size for the libraries, - can be exported to static image charts (via separate API call) Cons - limited configuration options So there, please help me decide. YUI charts has the edge over configuration options but Google Visualization API has the edge in terms of accessibility as it uses SVG to render the grapsh instead of Flash. For users that are hand-cuffed by corporate IT prohibitions , they cant just upgrade their Flash version and the page will not work. Thanks!

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  • jQuery show/hide does not work on IE

    - by user1720534
    I have made simple jQuery script that should show div element when hovering mouse over another div (image). Here is my code: jQuery(document).ready(function(){ jQuery("#slider").hover(function(){ jQuery("#slider .hovercontent").fadeTo('fast', 1); },function(){ jQuery('#slider .hovercontent').fadeTo('slow', 0); }); }); Here is url for page: http://asiakas.henripylvas.com/henripylvas/ This works flawless on FF, Chrome, Safari and Opera but when using IE8 or 9 image in #slider div disappear. What is wrong? Tried to search answer for this but no luck. Thanks.

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  • Telerik RadAjaxManager and Mouse Events in Chrome

    - by kuzco
    Whenever I'm using Telerik's RadAjaxManager in Chrome, the events sent to any mouse events I'm using are passed as null. For instance, the following: <img id="Image1" src="image.gif" onclick="alert(event)" /> <rad:RadAjaxManager ID="RadAjaxManager1" runat="server"> <AjaxSettings> </AjaxSettings> </rad:RadAjaxManager> Alerts null when clicking the image. This does not happen in IE or FF. The version of the RadAjaxManager is 1.8.5.0. I'm guessing the problem does not occur in later versions, but an upgrade is not an option at the moment. I tried Telerik's support forum, but they didn't really provide any answer. What could cause such a problem? And how can it be dealt with?

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  • I am trying to move a rectangle in Pygame using coordinates but won't work

    - by user1821449
    this is my code import pygame from pygame.locals import * import sys pygame.init() pygame.display.set_caption("*no current mission*") size = (1280, 750) screen = pygame.display.set_mode(size) clock = pygame.time.Clock() bg = pygame.image.load("bg1.png") guy = pygame.image.load("hero_stand.png") rect = guy.get_rect() x = 10 y = 10 while True: for event in pygame.event.get(): if event.type == pygame.QUIT: sys.exit() if event.type == KEYDOWN: _if event.key == K_RIGHT: x += 5 rect.move(x,y)_ rect.move(x,y) screen.blit(bg,(0,0)) screen.blit(guy, rect) pygame.display.flip() it is just a simple test to see if i can get a rectangle to move. Everything seems to work except the code I put in italic.

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  • PHP convert latin1 to utf8 Persian txt

    - by root
    I now work on a web-base PHP app to work with a MySQL Server database . database is with Latin1 Character set and all Persian texts don't show properly . database is used with a windows software Show and Save Persian texts good . I don't want to change the charset because windows software work with that charset . Question: how can convert latin1 to utf8 to show and utf8 to latin1 for saving from my web-base PHP app , or using Persian/Arabic language on a latin1 charset database without problem ? note: one of my texts is ???? ?????? when save from my windows-based software save as ÇÍãÏ ÑÍãÇäí and still show with ???? ?????? in my old windows-based software image : image of database , charsets,collation and windows-based software

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  • Enable PyGTK Eventbox motion-notify-event while is a Layout child

    - by mkotechno
    I noticed when a Eventbox is added into a Layout some events are missed, this does not happend for example adding it to a Fixed (very similar widget), I tried to restore the event mask in this way with no sucess: import pygtk import gtk def foo(widget, event): print event pygtk.require('2.0') window = gtk.Window(gtk.WINDOW_TOPLEVEL) window.connect('destroy', lambda x: gtk.main_quit()) eventbox = gtk.EventBox() eventbox.connect('button-press-event', foo) # works eventbox.connect('motion-notify-event', foo) # fail eventbox.set_events( gtk.gdk.BUTTON_MOTION_MASK| # restoring missed masks gtk.gdk.BUTTON1_MOTION_MASK| gtk.gdk.BUTTON2_MOTION_MASK| gtk.gdk.BUTTON3_MOTION_MASK) layout = gtk.Layout() image = gtk.image_new_from_file('/home/me/picture.jpg') layout.add(image) eventbox.add(layout) window.add(eventbox) window.show_all() gtk.main() How should I restore the missed event/mask?

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  • UIView Obscuring Other Views

    - by Matt Long
    I cannot figure out what is obscuring my buttons. The first image shows the buttons that I want to click. They are clickable while the view is contracted like this, but when the view is expanded like in the second image, the buttons are no longer clickable. There seems to be another view obscuring the buttons. Any thoughts on what might be causing that? If not, any idea how I can figure out what view is getting the tap events when I tap in that area? Thanks. -Matt

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  • Dynamically loading hi-res images into UIScrollView

    - by Jeff
    I've been looking into creating a gallery mode in my application. The functionality will be identical to the built in Photos App. Here's the flow: 1. You touch on a thumbnail and ... 2. a modal view displays a large detail version of the image 3. You have the ability to scroll horizontally through all the images in the gallery while in this modal view I'm stuck on step 3. How do I dynamically load hi res images into a scroll view? I understand I need to set the contentSize for the the scrollView but how do I do that when I've only selected and loaded one image? What delegate methods do I need to implement and what does the heavy lifting look like? Thanks in advance!

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  • Silverlight Issue : Save in Jpeg format

    - by Amit
    Hi All, I am new to Silverlight. We are working on silverlight 3.0. I want to implement a functionality that specific part of the file like stack panel or grid needs to be export or print to the image format. I mean when i click on specific button then that part of the application needs to export in image format. My first question is, Is it possible to implement it in Silverlight3.0? Or funcitonality is in Silverlight4.0. Can anyone please replay ASAP? Thanks, Amit

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  • Avoid flickering on mouse over

    - by GigaPr
    Hi I have a simple link in a menu <a id="Home" href="Amico-Bio-Home-Page"></a> to which i apply the following style #Home{ background-image:url(../Images/Menu/home.png); background-repeat:no-repeat; border:none; display:block; height:70px; text-decoration:none; width:78px; float:left; padding:0 7px; } #Home:hover { background-image: url(../Images/Menu/homeOn.png); } when i go over the link the images are swapped. while swapping the images the link disappear for an instant. Do you know any way to avoid it? thanks

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  • How can I receive CameraActivities result in a DIFFERENT Activity (i.e. not in the launching one)?

    - by steff
    Hi, I hope the title says it all: I've got Activity A which fires up the Camera intent via: Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, REQUEST_CAMERA); After the picture is taken I can easily grab the picture in: @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) But I'd like to receive the result in Activity B in which the image can be edited. Right now I'm receiving the result in Activity A and pass it over to Activity B which results in showing the GUI of Activity A for a short while: Intent i = new Intent().setAction("DisplayJPEG"); i.setClass(this, EditImageActivity.class); i.putExtra("IMAGE_URI", uri); startActivityForResult(i, REQUEST_EDIT_IMAGE); Of course, I will need the result from Activity B in Activity A after the image has been edited. But that should work with: setResult(resultCode, data); So there has to be a way to do what I need. Please point me into the right direction. Thanks in advance, steff

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  • How does c# type safety affect the garbage collection?

    - by Indeera
    I'm dealing with code that handles large buffers ( 100MB) and manipulation of these is done in unsafe blocks. I'd like to refactor these to avoid unsafe code. I'm wondering about the likely memory performance gains (positive/negative/neutral) before I embark on that. I assert that if the compiler can verify types, it could possibly generate better code and that could also mean good GC performance. Is this a valid assertion? What is your experience? Thanks.

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  • iPhone: fast hash function for storing web images (url) as files (hashed filenames)

    - by Stefan Klumpp
    What is a fast hash function available for the iPhone to hash web urls (images)? I'd like to store the cached web image as a file with a hash as the filename, because I suppose the raw web url could contain strange characters that could cause problems on the file system. The hash function doesn't need to be cryptographic, but it definitely needs to be fast. Example: Input: http://www.calumetphoto.com/files/iccprofiles/icc-test-image.jpg Output: 3573ed9c4d3a5b093355b2d8a1468509 This was done by using MD5(), but since I don't know much about that topic I don't know if it is overkill (- slow).

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  • Java output file doesnt recognise \n as linebreak

    - by oderebek
    for a Java project for a University Class I have a method that saves ASCII images as a uniline string and another method called toString rebuilds this ASCII image and returns as a string. When I run my program on the Eclipse my output looks on console alright and multiline, and there are line breaks where they should be. But when I run it with the command line with a redirected outputfile java myprogram < input output the text in the output is uniline without line breaks Here is the code of the method public String toString(){ String output = ""; for(int i=0; i<height; i++){ output=output+image.substring(i*width, i*width+width)+"\n"; } return output; } What should I do so I can get a multiline output text file

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  • MOSS Collect Data from user custom email

    - by nav
    Hi, I am trying to send out a custom email, after the Collect Data from user step in my primary workflow which starts when an item in list X is created. I have created a secondary workflow to start when a new Task item is created (this is created by the Collect Data from user action in the primary workflow). But I am having problem how I retrieve the information on the list X. I know the ID of the referenced item in List X is stored in a URL within the "Link" column in the Tasks lists. But can't see any string manipulation function that will grab this ID so I can use it to link back to relevant item in List X. Is there an easier way to do this? Many Thanks, Nav

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  • Release a retain UIImage property loaded via imageNamed?

    - by user158103
    In my class object i've defined a (nonatomic, retain) property for UIImage. I assigned this property with an image loaded via [UIImage imageNamed:@"file.png"]; If at some point I want to reassign this property to another image, should I have to release the prior reference? I am confused because by the retain property I know i should release it. But because imageNamed is a convenience method (does not use alloc), im not sure what rule to apply here. Thanks for the insight!

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  • Good way to format decimal in SQL Server

    - by Brad
    We store a decimal(9,8) in our database. It can have any number of places after the decimal point (well, no more than 8). I am frustrated because I want to display it as human-readable text as part of a larger string created on the server. I want as many decimals to the right of the decimal point as are non-zero, for example: 0.05 0.12345 3.14159265 Are all good If I do CAST(d AS varchar(50)) I get formatting like: 0.05000000 0.12345000 3.14159265 I get similar output if I cast/convert to a float or other type before casting to a varchar. I know how to do a fixed number of decimal places, such as: 0.050 0.123 3.142 But that is not what I want. Yes, I know I can do this through complicated string manipulation (REPLACE, etc), there should be a good way to do it.

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  • how to get the camera data

    - by beof
    Hello ,guys, My app needs to get the camera data from Iphone. In my ImagePickerController, there is overlayView drawing realtime indications. I use UIGetScreenImage() to get the screenshot, and I also dump overlayview to image, then I can restore the original Image based on these two images. if the overlayView is still, it works quite well, but if the overlayView keeps changing, UIGetScreenImage() can not keep up with it. For example,if the overlayView changes from a rectangle to a circle, then calling UIGetScreenImage() returns with a rectangle on top of it. Is there a way to get the realtime camera data? I really appreciate if someone could help.

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  • How to access a control placed inside data template of listbox?

    - by Subhen
    Hi I have the following code: <ListBox x:Name="foldersListBox" Grid.Column="0" MouseLeftButtonUp="foldersListBox_MouseLeftButtonUp" BorderThickness="0" Height="AUTO" ScrollViewer.HorizontalScrollBarVisibility="Disabled" ScrollViewer.VerticalScrollBarVisibility="Disabled"> <DataTemplate> <Border BorderBrush="LightGray" BorderThickness="2" CornerRadius="4"> <Image x:Name="folderImage" Width="70" Height="70" Margin="3" /> </Border> </DataTemplate> </ListBox> Now when I am trying to access folderImage from code behind. I can use the loaded event and typecast the sender as Image type , but I dont want that way. Help plz. Thanks, Subhen

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  • Amazon S3 collisions with heroku and paperclip

    - by poseid
    I have an app on my localhost for development and an app for testing on heroku. Image upload with localhost and paperclip always works. However, doing the same experiment with image upload on my heroku app, the app hangs... and the upload seems to be going on forever. I suspect that there is a collision going on. What is needed to get but uploads working? Or do I need to use different buckets for each environment?

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  • wpf keep base style in custom control

    - by Archana R
    Hello, I have created a custom button as i wanted an image and a text inside it as follows: <Style TargetType="{x:Type Local:ImageButton}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Local:ImageButton}"> <StackPanel Height="Auto" Orientation="Horizontal"> <Image Margin="0,0,3,0" Source="{TemplateBinding ImageSource}"/> <TextBlock Text="{TemplateBinding Content}" /> </StackPanel> </ControlTemplate> </Setter.Value> </Setter> </Style> Here, ImageButton is a class which inherits from Button class and has ImageSource as a dependency property. But i want to keep the look and feel of the original button. How can i do it? Thanks.

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  • Slow page unload in IE

    - by ForYourOwnGood
    I am developing a site which creates many table rows dynamically. The total amount of rows right now is 187. Everything works fine when creating the rows, but in IE when I leave the page, there is a large amount of lag. I do not know if this is some how related to the heavy DOM manipulation I am doing in the page? I do not create any function closures when building the dynamic content's event handlers so I do not believe this problem is related to memory leaks. Any insight is much appreciated.

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