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  • Gridview get image from JSON using AsyncTask

    - by kongkea
    This project I've done with image in my drawable but now I want to get image url from JSON by using Asynctask and display it. and I make php that provide a json string like below. I want to get path of image(url) by using AsyncTask from JSON. I want to use data from json instead of public mThumbId = {...}; {"count":"28","data": [{"id":"1", "first_name":"man", "last_name":"woman", "username":"man", "password":"4f70432e636970de9929bcc6f1b72412", "email":"[email protected]", "url":"http://vulcan.wr.usgs.gov/Imgs/Jpg/MSH/Images/MSH64_aerial_view_st_helens_from_NE_09-64_med.jpg"}, {"id":"2", "first_name":"first", "last_name":"Last Name", "username":"user", "password":"1a1dc91c907325c69271ddf0c944bc72", "email":"[email protected]", "url":"http://www.danheller.com/images/California/Marin/Scenics/bird-view-big.jpg"}, {"id":"3", "first_name":"first", "last_name":"Last Name", "username":"user", "password":"1a1dc91c907325c69271ddf0c944bc72", "email":"0", "url":"http://www.hermes.net.au/bodhi/images/view/large/view_03.jpg"}]} AndroidGridLayoutActivity GridView gridView = (GridView) findViewById(R.id.grid_view); gridView.setAdapter(new ImageAdapter(this)); gridView.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView<?> parent, View v, int position, long id) { Intent i = new Intent(getApplicationContext(), FullImageActivity.class); i.putExtra("id", position); startActivity(i); } }); ImageAdapter public class ImageAdapter extends BaseAdapter { private Context mContext; // Keep all Images in array public Integer[] mThumbIds = { R.drawable.pic_1, R.drawable.pic_2, R.drawable.pic_3, R.drawable.pic_4, R.drawable.pic_5, R.drawable.pic_6, R.drawable.pic_7, R.drawable.pic_8, R.drawable.pic_9, R.drawable.pic_10, R.drawable.pic_11, R.drawable.pic_12, R.drawable.pic_13, R.drawable.pic_14, R.drawable.pic_15 }; // Constructor public ImageAdapter(Context c){ mContext = c; } public int getCount() { return mThumbIds.length; } public Object getItem(int position) { return mThumbIds[position]; } public long getItemId(int position) { return 0; } public View getView(int position, View convertView, ViewGroup parent) { ImageView imageView = new ImageView(mContext); imageView.setImageResource(mThumbIds[position]); imageView.setScaleType(ImageView.ScaleType.CENTER_CROP); imageView.setLayoutParams(new GridView.LayoutParams(70, 70)); return imageView; } } FullImageActivity Intent i = getIntent(); int position = i.getExtras().getInt("id"); ImageAdapter imageAdapter = new ImageAdapter(this); ImageView imageView = (ImageView) findViewById(R.id.full_image_view); imageView.setImageResource(imageAdapter.mThumbIds[position]);

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  • Using Bitmap.LockBits and Marshal.Copy in IronPython not changing image as expected

    - by Leonard H Martin
    Hi all, I have written the following IronPython code: import clr clr.AddReference("System.Drawing") from System import * from System.Drawing import * from System.Drawing.Imaging import * originalImage = Bitmap("Test.bmp") def RedTint(bitmap): bmData = bitmap.LockBits(Rectangle(0, 0, bitmap.Width, bitmap.Height), ImageLockMode.ReadWrite, PixelFormat.Format24bppRgb) ptr = bmData.Scan0 bytes = bmData.Stride * bitmap.Height rgbValues = Array.CreateInstance(Byte, bytes) Runtime.InteropServices.Marshal.Copy(ptr, rgbValues, 0, bytes) for i in rgbValues[::3]: i = 255 Runtime.InteropServices.Marshal.Copy(rgbValues, 0, ptr, bytes) bitmap.UnlockBits(bmData) return bitmap newPic = RedTint(originalImage) newPic.Save("New.bmp") Which is my interpretation of this MSDN code sample: http://msdn.microsoft.com/en-us/library/5ey6h79d.aspx except that I am saving the altered bitmap instead of displaying it in a Form. The code runs, however the newly saved bitmap is an exact copy of the original image with no sign of any changes having occurred (it's supposed to create a red tint). Could anyone advise what's wrong with my code? The image I'm using is simply a 24bpp bitmap I created in Paint (it's just a big white rectangle!), using IronPython 2.6 and on Windows 7 (x64) with .Net Framework 3.5 SP1 installed.

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  • Display MySQL BLOB'd image on webpage without separate script (PHP)

    - by robhardgood
    So I've got some images stored in a MySQL database as BLOB's (I know it's better to just store the directory and do it that way, but this is what I need to do for now) and I need to display them on a webpage. Now, I know how to make a script and give it an image header and pull the img src from there, but I have a lot of images from different places for different uses, so I'd have to make a ton of these scripts and I'd rather not clutter up my files like that. Anyway, does anyone know of a function or something I can use to display the image that will run on the same page?

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  • FLEX, Actionscript: 2 questions about mouseOver event and image scaling

    - by Patrick
    hi, 1) if I create items in a for loop, is correct to add a new eventListener for each item ? Or should I add only 1 eventListener to the parent ? and call the event through ID ? 2) if I want to scale my item, (a LinkButton with icon image), I noticed that the icon is sometimes resized with delay, so I have a bit of flickering when I trigger the event. Should I not use icons, and set the image in another way ? How can I fix this ? thanks

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  • How to add a URL and Buttons on top of an Existing Header Image

    - by tonsils
    Hi, 1) I have a header jpeg image that spans a width of 996px that has a square logo to the left of this header. My question is that I would like to use this square logo section only and place a ahref tag so that when the user hover's over this section only, the cursor changes to a hand pointer and the user will be redirected back to the landing page. Any assistance on this would be great. 2) On this same image, I would also like to place two buttons with rollover effects, so when the user hovers over the buttons, the rollover effect takes control and then would like these buttons to also point to a href url. Again, any help on this would be appreciated. Thanks.

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  • Is a VCS appropriate for usage by a designer?

    - by iconiK
    I know that a VCS is absolutely critical for a developer to increase productivity and protect the code, no doubts about it. But what about a designer, using say, Photoshop (though it's not specific to any tools, just to make my point clearer). VCSs uses delta compression to store different versions of files. This works very well for code, but for images, that's a problem. Raster image files are binary formats, though vector image files are text (SVG comes to my mind) and pose to problem. The problem comes with .psd files (and any other image "source" file) - those can get pretty big and since I'm not familiar with the format, I'll consider them as binary files. How would a VCS work in this condition? The repository could be pretty darned big if the VCS server isn't able to diff the files efficiently (or worse, not at all) and over time this can become a really big pain when someone needs to check out the repository (or clone it if using a DVCS). Have any of you used a VCS for this purpose? How well does it work? I'm mostly interested in Mercurial, though this is a general situation that applies to any VCS.

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  • Touch area changing on custom UIButton with image and title on landscape mode

    - by gkedmi
    hello all I'm trying to build a button that looks like the icons on the iphone , with an image and a title bellow.I'm working in landscape mode. I have a custom button on the IB with image and title and inside the code I use the methods : [aButton setTitleEdgeInsets:UIEdgeInsetsMake(60.0, -50.0, 0.0, 0.0)]; [aButton setImageEdgeInsets:UIEdgeInsetsMake(-10.0, 29.0, 0.0, 0.0)]; my problem is that the area that react to the touch events is very small and is on the top left of the button , another problem is that if I change my button size I have to calculate again manually the values for these 2 functions. Is there any easy way to do it?and if not how can I fix the touch area? thanks Gilad

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  • StackOverFlowException - but oviously NO recursion/endless loop

    - by user567706
    Hi there, I'm now blocked by this problem the entire day, read thousands of google results, but nothing seems to reflect my problem or even come near to it... i hope any of you has a push into the right direction for me. I wrote a client-server-application (so more like 2 applications) - the client collects data about his system, as well as a screenshot, serializes all this into a XML stream (the picture as a byte[]-array]) and sends this to the server in regular intervals. The server receives the stream (via tcp), deserializes the xml to an information-object and shows the information on a windows form. This process is running stable for about 20-25 minutes at a submission interval of 3 seconds. When observing the memory usage there's nothing significant to see, also kinda stable. But after these 20-25 mins the server throws a StackOverflowException at the point where it deserializes the tcp-stream, especially when setting the Image property from the byte[]-array. I thoroughly searched for recursive or endless loops, and regarding the fact that it occurs after thousands of sucessfull intervals, i could hardly imagine that. public byte[] ImageBase { get { MemoryStream ms = new MemoryStream(); _screen.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg); return ms.GetBuffer(); } set { if (_screen != null) _screen.Dispose(); //preventing well-known image memory leak MemoryStream ms = new MemoryStream(value); try { _screen = Image.FromStream(ms); //<< EXCEPTION THROWING HERE } catch (StackOverflowException ex) //thx to new CLR management this wont work anymore -.- { Console.WriteLine(ex.Message + Environment.NewLine + ex.StackTrace); } ms.Dispose(); ms = null; } } I hope that more code would be unnecessary, or it could get very complex... Please help, i have no clue at all anymore thx Chris

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  • changing image on listview at runtime in android

    - by Raj
    Hi, I am using a LinearLayout to display some Text and image. I have the images at drawable/ and i am implimenting this with ListActivity with some onListItemClick functionality. now i wants to change the image for the rows which are processed by onclick functionality to show the status as processed. can some one help me in this issue to change the image at runtime. the following is my implimentation. public class ListWithImage extends ListActivity { /** Called when the activity is first created. */ private SimpleCursorAdapter myAdapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // raj setContentView(R.layout.main); Cursor cursor = getContentResolver().query(People.CONTENT_URI, null, null, null, null); startManagingCursor(cursor); String[] columns = new String[] {People.NAME, People.NUMBER}; int[] names = new int[] {R.id.contact_name, R.id.contact_number}; myAdapter = new SimpleCursorAdapter(this, R.layout.main, cursor, columns, names); setListAdapter(myAdapter); } @Override protected void onListItemClick(ListView listView, View view, int position, long id) { super.onListItemClick(listView, view, position, id); Intent intent = new Intent(Intent.ACTION_CALL); Cursor cursor = (Cursor) myAdapter.getItem(position); long phoneId = cursor.getLong(cursor.getColumnIndex(People.PRIMARY_PHONE_ID)); intent.setData(ContentUris.withAppendedId(Phones.CONTENT_URI, phoneId)); startActivity(intent); } } and main.xml is : <LinearLayout android:layout_height="wrap_content" android:orientation="vertical" android:layout_width="250px"> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Name: " /> <TextView android:id="@+id/contact_name" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Phone: " /> <TextView android:id="@+id/contact_number" android:layout_width="wrap_content" android:layout_height="wrap_content" /> </LinearLayout>

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  • Django App for Image heavy Magazine Publishing?

    - by stapler
    I'm about to begin work on a Django project for an image heavy non-profit "community arts" magazine. The magazine is published monthly with about 6-8 articles that include with 4-10 images. I've been looking around for other projects that people have started specifically for publishing in Django... Are there any publishing specific Django apps you'd recommend? At the moment the only thing I can find is django-newsroom which looks interesting. Currently I'm just Image Kit / Photologue to attach galleries to an Article Model... but I'd love to figure out a way to more fully integrate images into the article content. Thanks in advance

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  • Move Image or Div Up As Window Resizes?

    - by Wade D Ouellet
    Hi, I have an image in my html with a class of "stretch". Currently, with css, this image re-sizes as the window re-sizes to be 100% of the screen width. I would also like it to move upwards as the window is being re-sized. I'm assuming this can be done with jQuery but I am not quite sure. Basically the "top" css value just needs to change as the screen width does. Here is the css that is currently re-sizing it: .stretch { width: 100%; height: auto; min-height: 420px; position: absolute; top: -200px; } Thanks, Wade

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  • Image animation over CGContextDrawPDFPage

    - by BittenApple
    I have a pdf page displayed with CGContextDrawPDFPage in QuartzDemo sample application. I want to keep this page shown and have an image slide in from top over this page, just as it can be seen in the iBooks application. It's a book, the sliding image is a bookmark that slides in when you are about to close the book. I added this code by DyingCactus (hint: im a newbie to obj c and iphone dev) as follows: In QuartzViewController.m, the animation starts to show but the view slides away before the animation is finished, in fact I think the animation goes on while the view is sliding away. -(void)viewWillDisappear:(BOOL)animated { [self.quartzView setFrame:CGRectMake(150, -200, 100, 200)]; [UIView beginAnimations:nil context:nil]; [UIView setAnimationDuration:1.0]; [self.quartzView setFrame:CGRectMake(150, 0, 100, 200)]; [UIView commitAnimations]; } How can I keep the view visible and finish the animation before view disappears?

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  • Can pdflatex (or any tex package) automatically rescale included images which have been reduced in s

    - by drfrogsplat
    I'm writing my thesis in LaTeX, generating it with pdflatex. I have a large number of figures, many of which are bitmaps (as opposed to SVG) in PNG/JPEG format. I've generally created them to be fairly high resolution (say 1600x1200-ish) to ensure that whatever size they end up in the document, they'll be at least 300dpi when printed. As I'm writing/laying out the document, I'm including graphics (using \includegraphics from the graphicx package) and setting widths/heights as appropriate (e.g. subfigures are quite small). I don't need the images to be any more than about 300 dpi at best, so where I have shrunk a 1600x1200 image down to say 5cm, the image is now at 800 dpi. So despite including some very small (on the page) images, the PDF is becoming quite large. Is there a way to tell pdflatex or graphicx (or something else involved?) to convert all images to a maximum of 300 dpi, based on the dimensions I'm setting with say \includegraphics[width=2in]{filename}? i.e. so it scales the image to a max of 600x600 pixels as it includes it in the PDF (leaving the original file untouched). I know I can resize the original images with various command line applications, and include the pre-resized versions, but given the images vary in size considerably, it wouldn't be as simple as making sure they're all 300dpi for a constant printed size. It'd also be nice to be able to easily create different versions of PDFs (web vs final print) without resizing images manually, so that the 'web' PDF capped images at say 72-100 dpi while the final print one could cap at 600 (if at all).

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  • Full size image in ImageView

    - by Kilnr
    Hi, I'm trying to draw an image in an ImageView, but i want it to be unscaled, with scrollbars as necessary. How can I accomplish this? Right now I just have a drawable set as the android:src of the ImageView in the XML. This autoscales the image to fit the screen width. I read that this might be because of the compatibility mode (developing for 1.5, testing on 2.1), but then I added <uses-sdk android:minSdkVersion="3" android:targetSdkVersion="4" /> to my manifest, and nothing changed. Any clues?

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  • Django Template tag, generating template block tag

    - by Issy
    Hi Guys, Currently a bit stuck, wondering if anyone can assist. I am using django-adminfiles. Which is a near little application. I want to use it to insert images into posts/articles/pages for a site i am building. How django-adminfiles works is it inserts a placeholder i.e <<< ImageFile and this gets rendered using a django template. It also has the feature of inserting custom options i.e (Insert Medium Image) , i figured i would used this to automatically resize images and include it in the post (similar to how WP does it). Django-adminfiles makes use of sorl.thumbnail app to generate thumbnails. So i have tried testing generating thumbnails: The current template that is used to render the inserted image is: {% spaceless %} <img src="{{ upload.upload.url }}" width="{{ upload.width }}" height="{{ upload.height }}" class="{{ options.class }}" class="{{ options.size }}" alt="{% if options.alt %}{{ options.alt }}{% else %}{{ upload.title }}{% endif %}" /> {% endspaceless %} I tried modifying this to: {% load thumbnail %} {% spaceless %} <img src="{% thumbnail upload.upload.url 200x50 %}" width="{{ upload.width }}" height="{{ upload.height }}" class="{{ options.class }}" class="{{ options.size }}" alt="{% if options.alt %}{{ options.alt }}{% else %}{{ upload.title }}{% endif %}" /> {% endspaceless %} I get the error: Exception Value: Caught an exception while rendering: Source file: '/media/uploads/DSC_0014.jpg' does not exist. I figured the thumbnail needs the absolute path so tried putting that in the template, and that works. i.e this works: {% thumbnail '/Users/me/media/uploads/DSC_0014.jpg' 200x50 %} So basically i need to generate the absolute path to the file give the relative path (to web root). You could do this by passing the MEDIA_ROOT setting to the template, but the reason i want to do a template tag is to programmatically set the image size.

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  • JPEG image with alpha channel on website

    - by mikez302
    I would like to make a JPEG image file with some pixels that are partially transparent or fully transparent, similar to a PNG file with an alpha channel. Is this possible? If so, how would I go about doing this? I would like to use the image on a website. If I try to do this, would it work in any or all of the popular browsers (IE 7+, Firefox, Safari)? Assuming it is possible, will it just work, or are there any tricks or hacks required to make it work?

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  • Get used color names from image

    - by atmorell
    Hello, I would like to check what colors is present in a image. This will be stored in the database and used for a search form. (red=1, green=1, blue=0, yellow=1, black=1, white=1 etc.) img = Magick::Image.read('phosto-file.jpg').first img = img.quantize(10 h = img.color_histogram pp h {red=12815, green=18494, blue=15439, opacity=0=>13007, red=44662, green=47670, blue=51967, opacity=0=>18254, red=17608, green=43331, blue=48321, opacity=0=>11597, red=21105, green=25865, blue=39467, opacity=0=>10604, red=15125, green=36629, blue=22824, opacity=0=>10223, red=52102, green=42405, blue=10063, opacity=0=>12928, red=39043, green=28726, blue=40855, opacity=0=>7728, red=10410, green=8880, blue=7826, opacity=0=>13795, red=25484, green=25337, blue=24235, opacity=0=>7351, red=44485, green=12617, blue=11169, opacity=0=>14513} How do I convert the 10 values to color names? red, green, NOMATCH, yellow, black, white etc. Only need the rough color name - not LimeGreen but Green etc. Best regards. Asbjørn Morell

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