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  • resize image in asp.net

    - by alina
    I have this code to resize an image but the image doesn't look so good: public Bitmap ProportionallyResizeBitmap(Bitmap src, int maxWidth, int maxHeight) { // original dimensions int w = src.Width; int h = src.Height; // Longest and shortest dimension int longestDimension = (w > h) ? w : h; int shortestDimension = (w < h) ? w : h; // propotionality float factor = ((float)longestDimension) / shortestDimension; // default width is greater than height double newWidth = maxWidth; double newHeight = maxWidth / factor; // if height greater than width recalculate if (w < h) { newWidth = maxHeight / factor; newHeight = maxHeight; } // Create new Bitmap at new dimensions Bitmap result = new Bitmap((int)newWidth, (int)newHeight); using (Graphics g = Graphics.FromImage((System.Drawing.Image)result)) g.DrawImage(src, 0, 0, (int)newWidth, (int)newHeight); return result; }

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  • Floodfill with "layers"

    - by user146780
    What I want is to create a vector drawing program with layers, but to avoid using transparency / opacity, I want to draw each shape from lowest layer to highest layer onto a single bitmap. For the filling, I want to floodfill the shape. My issue is that, if I have a shape that is drawn then floodfilled, then the next shape overlaps it a bit and that new shape's border is the same as the other one's then floodfill will only partially fill it. Is there a way given a shape's coordinates that I can find the actual bounds for floodfill rather than use a target color? Thanks

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  • using jquery as an alternative to css nth child

    - by JCHASE11
    Hi. I am using the following css to create list items with a chckerboard background ( every other list item has a grey background, which shift every row to create a checkerboard pattern: li:nth-child(8n+2), li:nth-child(8n+4), li:nth-child(8n+5), li:nth-child(8n+7) { background-color:grey; } Is there way I can do this using jquery that is more supportive than css3? Thanks

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  • WPF - Only want one expander open at a time

    - by Portsmouth
    I have a UserControl with a templated grouped listbox with expanders and only want one expander open at any time. I have browsed through the site but haven't found anything except binding the IsExpanded to IsSelected which isn't quite what I want. I am trying to put some code in the Expanded event that would loop through Expanders and close all the ones that aren't the expander passed in the Expanded event. I can't seem to figure out how to get at them. I've tried ListBox.Items.Groups but didn't see how to get at them and tried ListBox.ItemContainerGenerator.ContainerFromItem (or Index) but nothing came back. Thanks <ListBox Name="ListBox"> <ListBox.GroupStyle > <GroupStyle> <GroupStyle.ContainerStyle> <Style TargetType="{x:Type GroupItem}"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type GroupItem}"> <Border BorderBrush="CadetBlue" BorderThickness="1"> <Expander BorderThickness="0,0,0,1" Expanded="Expander_Expanded" Focusable="False" IsExpanded="{Binding IsSelected, RelativeSource={RelativeSource FindAncestor, AncestorType= {x:Type ListBoxItem}}}" > <Expander.Header> <Grid> <StackPanel Height="30" Orientation="Horizontal"> <TextBlock Foreground="Navy" FontWeight="Bold" Text="{Binding Path=Name}" Margin="5,0,0,0" MinWidth="200" Padding="3" VerticalAlignment="Center" /> <TextBlock Foreground="Navy" FontWeight="Bold" Text=" Setups: " VerticalAlignment="Center" HorizontalAlignment="Right"/> <TextBlock Foreground="Navy" FontWeight="Bold" Text="{Binding Path=ItemCount}" VerticalAlignment="Center" HorizontalAlignment="Right" /> </StackPanel> </Grid> </Expander.Header> <Expander.Content> <Grid Background="white" > <ItemsPresenter /> </Grid> </Expander.Content> <Expander.Style > <Style TargetType="{x:Type Expander}"> <Style.Triggers> <Trigger Property="IsMouseOver" Value="true"> <Setter Property="Background"> <Setter.Value> <LinearGradientBrush StartPoint="0,0" EndPoint="0,1"> <GradientStop Color="WhiteSmoke" Offset="0.0" /> <GradientStop Color="Orange" Offset="1.0" /> </LinearGradientBrush> </Setter.Value> </Setter> </Trigger> <Trigger Property="IsMouseOver" Value="false" <Setter Property="Background"> <Setter.Value> </code>

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  • fullcalendar colored same td?

    - by Torenaga
    Hello Is possible change background-color on same td in fullcalendar? for example: I like have blue beckground at Mo 10:00-14:00 and green beckground at Tu 9:30-11:30. I visit: http://code.google.com/p/fullcalendar/issues/detail?id=144&colspec=ID%20Type%20Status%20Milestone%20Summary%20Stars But it is possible now and how? P.S: Sorry, I have bad English :(

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  • UserControl Behaviour on a Windows Form

    - by AK
    Hi, I have a usercontrol UC1 with a combobox and a button. From the constructor, after initializing all the controls, I am populating the combobox with an array of information brought from other class library. I have kept the UC1 on windows form. When I tried to open the form's designer I see some errors and a suggestion to rebuild to fix the errors. After searching over net I found that the logic of populating the combobox is the culprit. I changed the code with an additional check of null and the issue is fixed now. My question is, how am i able to see the same usercontrol seperatly in designer view, but not when i placed the UC1 on a form and trying to see the designer view for the form? The same combobox populating logic should affect the drawing of UC1 when I try to see it in designer view right? Thanks, AK.

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  • Changing a formwindows backcolor from a panel

    - by JPJedi
    I have a panel that is docked to the right side of a windows form. I set a color with a setting on the panel but I want to then update the main form (not the panel) backcolor to the new setting. But when I use me.backcolor = setting it changes the panels backcolor. This is also with VB.net windows forms with Visual Studios 2008 Thanks

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  • Cleanup for control inside a FlowDocument

    - by Thorarin
    I have a custom control that I use inside a FlowDocument. The control uses a System.Drawing.ImageAnimator to display transparent, animated GIF images. Why is this such a pain in the butt in WPF anyway? :P In my original implementation, this was causing memory leaks when a paragraph containing the control was being deleted from the document, because the ImageAnimator kept a reference to the control for event handling. I've now implemented a WeakEventManager pattern which seems to indeed fix the leak itself, but I would like to stop "OnFrameChanged" events from being fired if a particular animated GIF is not currently in the document, instead of relying on the garbage collector to eventually collect the control objects and my event manager to notice that there no longer are valid listeners to the event. Basically, I would like to take a more active role in this and have the control react to being removed from the FlowDocument. Is there some way to do this? I've been unable to find it. OnVisualParentChanged doesn't get fired, because the direct parent (a Paragraph) is unchanged.

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  • Resources for Programmatic Rendering of Topology Maps

    - by bn
    Servus, Do you know of any frameworks, APIS, languages, or other resources that are well suited for drawing topology maps that allow a user to interact with objects on the map? I am not constrained by language choice and the program can be web-based, or stand-alone. I thought I would check before rolling my own. My goal is not to draw cartographic maps, but more like this picture: http://www.fineconnection.com/files/images/GraphicalNM.PNG, or if you are familiar with Edward Tufte's books, the data-visualization mechanisms he describes such as a map of a metro or subway. Also, if you have had any experience rendering these types of user interfaces or usage of underlying datastructures, I would be grateful to hear any thoughts you have on the subject, advice, any "gotchas." Thank you very for your time, -bn

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  • MGTwitterEngine - Using getImageAtURL on iPhone

    - by Andrew Malchow
    Essentially, I'm working on asynchronously downloading images and adding them to specific UITableView cells (twitter profile images using MGTwitterEngine from Matt Gemmell). I've looked at general asynchronous download code and must admit, I'm still too much of a noob to understand it well enough to adapt it to my purposes. Instead, I'm attempting to use Gemmell's included getImageAtUrl method to add the images. I have it working to the point that -imageReceived: receives the images for visible cells, however, I'm stuck as to how to include them into the appropriate cells at that point. - (void)imageReceived:(UIImage *)image forRequest:(NSString *)identifier { NSLog(@"Got an image:%@",image); // What goes here? Or elsewhere? } This method is within my main view controller, I also have a custom cell controller where I'm drawing the cell content using Loren Brichter's fast scrolling code. Any help with this MGTwitterEngine method in particular, or with dynamically adding these images to my table cells would be greatly appreciated.

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  • Jquery Living Elements

    - by Kurt
    Hi there! Does anybody know how to deal with the effect at http://2crossmedia.com/liv-multicolor/ If you click into the text field, its surrounded by a color-changing line. The code says it's jquery. But how :) ? A lot of thanks!

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  • dropdown under a nav button css/html

    - by MannfromReno
    I have a navcontainer with buttons in the container. I need to make a dropdown list for only one of the buttons. How would this be accomplished with CSS/HTML. Here is my code: HTML: <div id="navcontainer"> <a href="/home.html" class="button" style="width: 115px">About Us</a> <a href="/quote.html" class="button" style="width: 170px">Request a Quote</a> <a href="/affiliates.html" class="button" style="width: 115px">Affiliates</a> <a href="/pricing.html" class="button" style="width: 170px">Pricing & Plans</a> <a href="/addservices.html" class="button" style="width: 190px">Additional Services</a> <a href="/service.html" class="button" style="width: 165px">Service Details</a> <a href="/watering.html" class="button" style="width: 108px">Watering</a> </div> CSS: #navcontainer { float: right; width: 1040px; height: 45px; text-align: center; line-height: 45px; color: #fff; margin-bottom: 6px; } .button { text-align: center; background: #226426; color: #fff; width: 100px; height: 45px; float: left; text-decoration: none; font-family: Arial, sans-serif; font-size: 15px; font-weight: bold; border-right: solid 1px #91b293; border-top: solid 1px #91b293; border-bottom: solid 1px #91b293; } Do I need to make this into a ul or can I keep it as is, and just add a dropdown to the Services button? Thanks for your help.

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  • Overlay of multiple colors in ImageJ

    - by nico
    Hi everyone, I'm writing a little plugin for imageJ and I am drawing several regions as an overlay on the image. I'm using this code: ImagePlus imp = getImage(); Overlay ov = new Overlay(); for (int r=0; r<regions.length; r++) { ov.add(regions[r]); } imp.setOverlay(ov); Where regions is an array of Roi. This works as intended and draws the regions in the (hurting to my eyes) standard ImageJ cyan used for overlays. I would like to draw one particular region in another colour, but I cannot seem to find a way to do it. I found that you can change the colour of the whole overlay, but I need two colours in the same overlay. Any ideas? Thanks in advance nico

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  • Flash10 Triangle Rendering

    - by anon
    I know about Papervision 3D. However, alot of the realism there comes from textures. Does anyone know of a benchmark that shows how many single-color, flash-shaded 3D triagnels flash10 can reasonably render? I can't find this benchmark online or an engine for this (most seems to really value bitmaps / texture). Thanks!

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  • ImageMagick vs. Cairo on Vector Graphics rasterization

    - by Sherwood Hu
    I am working on a project that needs rasterizing of drawings into image files. I have already got it work using GDI+. Wanting to create a portable solution, I am also looking into other solutions and found two - cairo and imagemagick. I am new to both, but it seems that ImageMagick can do almost all the stuff - drawing lines, arcs, circles, text etc.. plus many bitmap manipulation. However, Cairo is mentioned as competitor to GDI+ in web sites. ImageMagick is never mentioned for this purpose. I do not have time to invest on both libraries. I need to decide which one is worthy. I prefer to ImageMagick, as it seems much more powerful. What's your opinion on the two graphic libs?

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  • Windows Forms: Enable/Disable WS_CLIPCHILDREN

    - by Agnel Kurian
    How do I turn on/off the WS_CLIPCHILDREN window style in a Windows Forms parent control? I would like to display some text on top of the child control after it has painted. In my parent control, this is what I have: class Parent : public Control { void Parent::OnPaint(PaintEventArgs ^e){ Control::OnPaint(e); // parent draws here // some drawing should happen over the child windows // in other words, do not clip child window regions } }; On checking with Spy++ I find that the parent has the WS_CLIPCHILDREN window style enabled by default. What is the Windows Forms way to turn this off? Note: Sample code is in C++/CLI but I have tagged this C# for visibility... language is immaterial here. Feel free to translate the code to C#.

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  • when I click submit it should change the text and update the row something is wrong there

    - by Yousef Altaf
    good morning programers, I have this small code which content a news control panel and I made a submit button there to active or inactive the news row so if I click on this button it should change if it's active it will be inactive it worked but there's something wrong there when I click on item one it updates the last on the table not the first on as it should do. here is the code that I use <?php $getNewsData="select * from news"; $QgetNewsData=$db->query($getNewsData)or die($db->error); $count=mysqli_num_rows($QgetNewsData); while($newsRow = mysqli_fetch_array($QgetNewsData)) { $getActivityStatus=$newsRow['news_activity']; switch($getActivityStatus){ case 1: echo"<input style='color:red; font-weight:bold; background:none; border:0;' name='inactive' type='submit' value='?????' /><input name='inActive' type='hidden' value='".$newsRow['news_id']."'/>"; break; case 0: echo"<input style='color:green; font-weight:bold; background:none; border:0;' name='active' type='submit' value='?????' /><input name='Active' type='hidden' value='".$newsRow['news_id']."'/>"; break;} } if(isset($_POST['inactive'])){ $inActive=$_POST['inActive']; echo $inActive; $updateStatus="UPDATE news SET news_activity=0 WHERE news_id='".$inActive."' "; $QupdateStatus=$db->query($updateStatus)or die($db->error); if($QupdateStatus){ } } if(isset($_POST['active'])){ $Active=$_POST['Active']; echo $Active; $updateStatus="UPDATE news SET news_activity=1 WHERE news_id='".$Active."' "; $QupdateStatus=$db->query($updateStatus)or die($db->error); if($QupdateStatus){ header("Location:CpanelHome.php?id=7"); } } ?> please any idea to solve this problem. Thanks, regards

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  • Rails - Add style/image to button_to

    - by ChrisWesAllen
    I'm developing in rails right now and I was wondering if there are any easy ways to add some style to the button_to control. Can you add styling to the <%= submit_tag 'Log in' %> or <%= button_to "Show Me", {:controller => 'personal', :action => "add" } %> It would be great to change the color....But brownie point if someone can tell me how to make it an image

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  • Adding Icons next to items in Navigation Drawer

    - by DunriteJW
    I have been trying to figure this out for quite some time right now. I've looked all over this site and many others, and can't find anything that works. I simply want icons next to each item in my navigation drawer. I am currently using the method that Google's navigation drawer sample app uses. in the MainActivity.java I have the following: mColorTitles = getResources().getStringArray(R.array.colors_array); mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); mDrawerList = (ListView) findViewById(R.id.left_drawer); mColorIcons = getResources().getStringArray(R.array.color_icons); adapter = new ArrayAdapter<String>(this, R.layout.drawer_list_item, mColorTitles); // set a custom shadow that overlays the main content when the drawer opens mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); // set up the drawer's list view with items and click listener mDrawerList.setAdapter(adapter); mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); my drawer_list_item.xml: <TextView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@android:id/text1" android:layout_width="match_parent" android:layout_height="match_parent" android:textAppearance="?android:attr/textAppearanceListItemSmall" android:gravity="center_vertical" android:paddingLeft="5dp" android:paddingRight="16dp" android:textColor="#000" android:background="?android:attr/activatedBackgroundIndicator" android:minHeight="?android:attr/listPreferredItemHeightSmall"/> it currently just makes the navigation drawer display the color titles from the array. I have the icons that I want in another array, and they follow the exact same order as I want them associated with the colors. I just have no idea how to even begin inserting the icons from that array into the navigation items if it helps, here's what my arrays look like in my strings.xml (not full code) <string-array name="colors_array"> <item>Home</item> <item>Cherry</item> <item>Crimson</item> ... <array name="color_icons"> <item>@drawable/homeicon</item> <item>@drawable/cherryicon</item> <item>@drawable/crimsonicon</item> ... I've tried putting a drawable in the drawer_list_item, which works, but (of course) it always puts the same one in there. I could not think of a way to change it according to the color. I am relatively new to android programming, so if I am missing something simple, I'm sorry. If you could help me out, I would greatly appreciate it, as this is basically the last thing I need to do before I publish my application to the Play Store. Thanks in advance!

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