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  • Is there a way to avoid spaghetti code over the years?

    - by Yoni Roit
    I've had several programming jobs. Each one with 20-50 developers, project going on for 3-5 years. Every time it's the same. Some programmers are bright, some are average. Everyone has their CS degree, everyone read design patterns. Intentions are good, people are trying hard to write good code but still after a couple of years the code turns into spaghetti. Changes in module A suddenly break module B. There are always these parts of code that no one can understand except for the person who wrote it. Changing infrastructure is impossible and backwards compatibility issues prevent good features to get in. Half of the time you just want to rewrite everything from scratch. And people more experienced than me treat this as normal. Is it? Does it have to be? What can I do to avoid this or should I accept it as a fact of life? Edit: Guys, I am impressed with the amount and quality of responses here. This site and its community rock!

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  • Ruby erb template- try to change layout- get error

    - by nigel curruthers
    Hi there! I'm working my way through adapting a template I have been given that is basically a list of products for sale. I want to change it from a top-down list into a table layout. I want to end up with something as follows- <div id= 'ladiesproducts'> <% ladies_products = hosting_products.find_all do |product| product.name.match("ladies") end %> <table><tbody> <% [ladies_products].each do | slice | %> <tr> <% slice.each do | product | %> <td> <h4><%= product.name.html %></h4> <p><%= product.description %></p> <% other parts go here %> </td> <% end %> </tr> <% end %> </tbody></table> </div> This works fine for the layout that I am trying to achieve. The problem I have is when I paste back the <% other parts go here % part of the code. I get an internal error message on the page. I am completely new to Ruby so am just bumbling my way through this really. I have a hunch that I'm neglecting something that is probably very simple. The <% other parts go here %> code is as follows: <input type='hidden' name='base_renewal_period-<%= i %>' value="<%= product.base_renewal_period %>" /> <input type='hidden' name='quoted_unit_price-<%= i %>' value="<%= billing.price(product.unit_price) %>" /> <p><input type='radio' name='add-product' value='<%= product.specific_type.html %>:<%= i %>:base_renewal_period,quoted_unit_price,domain' /><%= billing.currency_symbol.html %><%= billing.price(product.unit_price, :use_tax_prefs) %> <% if product.base_renewal_period != 'never' %> every <%= product.unit_period.to_s_short.html %> <% end %> <% if product.setup_fee != 0 %> plus a one off fee of <%= billing.currency_symbol.html %><%= sprintf("%.2f", if billing.include_tax? then billing.price(product.setup_fee) else product.setup_fee end) %> <% end %> <% if product.has_free_products? %> <br /> includes free domains <% product.free_products_list.each do | free_product | %> <%= free_product["free_name"] %> <% end %> <% end %> * </p> <% i = i + 1 %> <% end %> <p><input type='submit' value='Add to Basket'/></p> </form> <% unless basket.nil? or basket.empty? or no_upsell? %> <p><a href='basket?add-no-product=package'>No thank you, please continue with my order ...</a></p> <% end %> <% if not billing.tax_applies? %> <% elsif billing.include_tax? %> <p>* Includes <%= billing.tax_name %></p> <% else %> <p>* Excluding <%= billing.tax_name %></p> <% end %> If anyone can point out what I'm doing wrong or what I'm missing or failing to change I would GREATLY appreciate it! Many thanks in advance. Nigel

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  • Whats wrong with this simple Layout?

    - by Sebi
    Im trying to define a LinearLayout which contains another LinearLayout which should always be desplayed in the horizontal and vertical center. An ImageView should be placed always vertically centered on the right side of the parent Layout: A B I defined it the following: <LinearLayout android:id="@+id/footer" android:orientation="horizontal" android:layout_height="50px" android:paddingTop="5px" android:layout_width="wrap_content" android:background="@drawable/footer_border" android:paddingRight="5px" android:paddingLeft="5px" android:layout_gravity="center_horizontal" <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="right" android:id="@+id/loading"> </ImageView> </LinearLayout> But unfornatuley its not working... The LinearLayout (A) and the ImageView (B) is on the left side.... But i set gravity to center and right?? Why?

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  • Storyboard editor layout confusion

    - by drew
    I am having layout problems with the storyboard editor with a fairly simple screen. I have a UIViewController to which I have added a 320x440 UIScrollView at 0,0 followed by a 320x20 UIProgressBar at 0,440. It looks fine in Storyboard editor. I'm not entirely sure how the 20 pixel status bar at the top of the screen is accommodated given the CGRect frame coordinates that Storyboard calculates. On loading ( in -(void)viewDidLoad ), the UIScrollView frame seems to be set to 320x460 pixels at 0,0 but the UIProgressBar is still 320x20 at 0,440. When I add subviews to the UIScrollView, (UIImageViews in particular), they get stretched and get clipped on the screen because although the UIScrollView thinks it is 460 pixels high, it only has 440 pixels of screen to display in. Can anyone point me to a solution? Thanks

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  • Are licenses relevant for small code snippets?

    - by Martin
    When I'm about to write a short algorithm, I first check in the base class library I'm using whether the algorithm is implemented in it. If not, I often do a quick google search to see if someone has done it before (which is the case, 19 times out of 20). Most of the time, I find the exact code I need. Sometimes it's clear what license applies to the source code, sometimes not. It may be GPL, LGPL, BSD or whatever. Sometimes people have posted a code snippet on some random forum which solves my problem. It's clear to me that I can't reuse the code (copy/paste it into my code) without caring about the license if the code is in some way substantial. What is not clear to me is whether I can copy a code snippet containing 5 lines or so without doing a license violation. Can I copy/paste a 5-line code snippet without caring about the license? What about one-liner? What about 10 lines? Where do I draw the line (no pun intended)? My second problem is that if I have found a 10-line code snippet which does exactly what I need, but feel that I cannot copy it because it's GPL-licensed and my software isn't, I have already memorized how to implement it so when I go around implementing the same functionality, my code is almost identical to the GPL licensed code I saw a few minutes ago. (In other words, the code was copied to my brain and my brain after that copied it into my source code).

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  • Test flash notice in layout view spec (rspec2, rails3)

    - by jbpros
    Hi! I'd like to spec the fact that my application layout view prints out flash notices. However the following code does not run, the flash method does not exist in view specs (as opposed to controller specs where it works perfectly): describe 'layouts/application' do it "renders flash notices" do flash[:notice] = "This is a notice!" render response.should contain "This is a notice!" end end Is my code wrong or is it a "not-yet-implemented feature" in Rspec 2? I'm on Rails3 and Rspec2 from its master branch on Git. Thanks!

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  • Using resource values as layout attributes (config.xml)

    - by synic
    Looking in the android sdk folders, I've found a file called values/config.xml. This seems to be somewhere that you can define values for later use in layouts and animations. Given the config.xml: <resources> <string name="config_somePadding">50dip</string> </resources> How would I reference this to use as the layout_height in a layout xml file? @string/config_somePadding is actually the only one I've found that doesn't throw an error in Eclipse (even though there isn't a config_somePadding in values/strings.xml), but it appears to just put an empty string. In the sdk, they use an integer for animation duration. They reference it like this: android:duration="@android:integer/config_longAnimTime". Is there a way to use values that aren't integers in the layout_height attribute?

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  • How to layout view right aligned and bottom of an LinearLayout

    - by michael
    Hi I am trying to layout 1 textview (upText) left aligned and 1 textview (downText) and an image view (image) both on the same line and right aligned. how can I do that? I tried that, but both 'textview' and image view at left aligned. <TextView android:id="@+id/uptext" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="left"/> <TextView android:id="@+id/downtext" android:layout_width="fill_parent" android:layout_height="wrap_content" android:singleLine="true" android:gravity="right|bottom"/> <ImageView android:id="@+id/image" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="right|bottom"/> </LinearLayout>

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  • Layout Question - OnItemClickListener not working now

    - by user244190
    Ok, after figuring out the earlier question 'Layout Question', now my OnItemClickListener, and ItemLongClickListener(ContextMenu) have stopped working. With just the TextView it works fine xml: <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content"> <TextView android:id="@+id/txtVehName" android:hint="@string/VEH_NAME" android:textSize="18dp" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_marginTop="10dip" android:layout_alignParentBottom="true" > </TextView> <RadioButton android:id="@+id/rbDefault" android:text="" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentRight="true" android:layout_alignParentBottom="true" > </RadioButton> </RelativeLayout> Anyone have any ideas as to why this would stop working? thanks

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  • Sqlalchemy layout with WSGI application

    - by TheDude
    I'm working on writing a small WSGI application using Bottle and SqlAlchemy and am confused on how the "layout" of my application should be in terms of SqlAlchemy. My confusion is with creating engines and sessions. My understanding is that I should only create one engine with the 'create_engine' method. Should I be creating an engine instance in the global namespace in some sort of singleton pattern and creating sessions based off of it? How have you done this in your projects? Any insight would be appreciated. The examples in the documentation dont seem to make this entirely clear (unless I'm missing something obvious). Any thoughts?

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  • Third-party dll's in a website layout

    - by eych
    I have a solution with several projects and one website. The website uses some third-party dll's. I have to place the dll's in the bin folder under the website. This is the same bin where the dll's from the other projects get auto-loaded. Is there a way I can place the third-party dll's in a separate folder? If I 'Add Reference' to the dll when it is in a separate folder, VS always adds it to the GAC. If the separate folder is outside of the website layout, 'Add Reference' never works. My goal is have the bin folder only for auto-updated dll's, and a separate folder for third-party dll's. [This method works fine for the projects; just the website has issues]

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  • Transform PDF to HTML, keep layout

    - by Tgr
    What methods are there to transform a PDF to HTML? It could be anything - online service, software, library. (Opensource preferred. In the last case, php or python would be preferred.) It has to keep the original layout (including page numbers, footnotes and such), keep the images (combining them to one single background image per page is acceptable) and keep the links. It should preferably output valid XHTML and clean up PDF features such as ligatures, but if there is some post-processing required, I can live with that. Something with a clean, relatively semantic HTML output would be great. The closest one I found was zamzar.org, but it choked on links. (Also, the HTML output is an ugly heap of absolutely positioned divs and needs post-processing because of encoding problems.)

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  • html clickable layout area. best practice

    - by Andrew Florko
    I am bad in html layout but I have to produce it :) I want to make big button on a page that is implemented as div with children tags (maybe - a bad idea). I can handle click event on boundary-div with javascript but it requires javascript enabled. I can wrap boundary-div with "anchor" tag but is doesn't work in IE Please, suggest me the best way to implement this. <a href="..."> <table> <td> ... </td> <td> ... <table> ... </table> </td> </table> </a>

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  • Java Program Design Layout Recommendations?

    - by Leebuntu
    I've learned enough to begin writing programs from scratch, but I'm running into the problem of not knowing how to design the layout and implementation of a program. To be more precise, I'm having difficulty finding a good way to come up with an action plan before I dive in to the programming part. I really want to know what classes, methods, and objects I would need beforehand instead of just adding them along the way. My intuition is leading me to using some kind of charting software that gives a hierarchal view of all the classes and methods. I've been using OmniGraffle Pro and while it does seem to work somewhat, I'm still having trouble planning out the program in its entirety. How should I approach this problem? What softwares out there are available to help with this problem? Any good reads out there on this issue? Thanks so much! Edit: Oh yeah, I'm using Eclipse and I code mainly in Java right now.

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  • Can't get precise layout on Nexus One

    - by Johnny
    I want to use precise layout on Nexus One, my code is like this: <LinearLayout android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="90px"> <ImageView android:layout_width="5px" android:layout_height="fill_parent" android:src="@drawable/d10" /> <ImageView android:layout_width="94px" android:layout_height="fill_parent" android:src="@drawable/d5" /> <ImageView android:layout_width="94px" android:layout_height="fill_parent" android:src="@drawable/d6" /> <ImageView android:layout_width="94px" android:layout_height="fill_parent" android:src="@drawable/d7" /> <ImageView android:layout_width="94px" android:layout_height="fill_parent" android:src="@drawable/d8" /> <ImageView android:layout_width="94px" android:layout_height="fill_parent" android:src="@drawable/d9" /> <ImageView android:layout_width="5px" android:layout_height="fill_parent" android:src="@drawable/d10" /> But it turns out on Nexus One, the screen width is not 480 px. So this LinearLayout will exceed the screen width. How should I fix this?

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  • Optimizing a fluid grid layout

    - by user1815176
    I recently just added a grid layout, but I can't figure out how to make my links work. The grid that I used is the 1140 one at http://cssgrid.net/. I studied the source code of that website, and tried to make my page like theirs, but when I put everything in it made mine worse, and the grid didn't even work. This is how my website is supposed to look http://spencedesign.netau.net/singaporehome.html and this is how it does http://spencedesign.netau.net/home.html And when you reduce the size, it doesn't look like it's supposed to. When you minimize it I want the pictures(links) to be two per row, then one per row depending on how small the page is. I also want the quote to turn into different rows when it is too small for it. But I can't figure out how to make the page look normal regularly let alone make it look good with a smaller browser. Thanks!

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  • Multiple layout UserControl

    - by johnm01
    Hi all, I have a UserControl that manages a lot of editable information (like text-boxes). Now I need to make a version of this control that has a different layout (from horizontal to vertical). I can expose the control, like this: public TextBox MyText { get { return myText; } set { myText = value; } } i can now manually change the location and size, but this does not give me a visual reposition of them at design time. Is there a better way of doing this ? Thanks John

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  • Problem with layout of control when dynamically creating winform and controls for the Form

    - by Ashwani Roy
    I get this response from a web service call. Something like this <Response> <Control1 type = "DropdownList" value= "USA,UK,Sweden,UAE"/> <Control2 type = "Textbox" value= "Contries"/> <Control3 type = "Button" value= "None"> </Response> Based on this I de-serialize it into List<Controls>. Now I need to be able to dynamically create a winform based on these controls. My problem is the layout. I want to be able to create them nicely separated (If possible vertically aligned) in batches of lets say 5.So If I need 15 controls I have 3 columns and 5 rows. What would be best way to achieve this? I know that I can use the inbuilt positioning properties like top, width etc., but maybe someone out there has done something similar in a better way.

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  • What are some commonly used source code check-in policies?

    - by rwmnau
    I'm curious what code review policies other development shops apply to their source code when it's checked into the source control repository. I'm setting up a TFS (Team Foundation) server, and I'd like to apply some check-in policies to start to stamp out bad practices. For example, I was thinking of starting with the following couple, so this is the kind of stuff I'm looking for: Prohibit empty "Catch" blocks. This would prevent applications from swallowing any exceptions without at least requiring a comment explaining why it's not necessary to do anything with the exception. Prohibit "Catch ex as Exception" generic exception handling. Instead, require code to catch specific types of exceptions and deal with them appropriately, instead of just building catch-all handling. Require a check-in comment. This one should be self-explanatory, though it seems that TFS (and most other source-control systems) don't require a comment by default. While these are just examples, they're where I'm thinking of starting, and while I'd like some additional examples of what's popular, I'm open to feedback on these. Also, though we're a mostly .NET shop, I imagine the popular policies are universal across languages and IDEs (we have some Java development and a few people who will use the repository develop with Eclipse).

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  • Problem with TabHost UI layout.

    - by Alan B
    What I'm trying to do is create a layout like this: +--------+ Search |EditText| [Button] +--------+ +---------+ |Tab 1 |---------+ | |Tab 2 | |---------+---------+-----------------+ | ListView Item 1 | | ListView Item 2 | | ListView Item 3 | | ListView Item 4 | | ListView Item 5 | | ListView Item 6 | | ListView Item 7 | | ListView Item 8 | | ListView Item 9 | | ListView Item 10 | +-------------------------------------+ So that's a TextView saying 'Search', an EditText and a button. Then below it the tabs - Tab 1 has a ListView, Tab 2 some other stuff. I can get a simple TabHost setup with two tabs working fine but can't get the above to lay out properly. Any hints ? I'd create the UI in the Eclipse designer and check the XML from that, except the designer doesn't work with TabHost. And DroidDraw doesn't seem to know about TabHost.

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  • ModalPopupExtender doesn't work on IE6 frame layout

    - by Joe
    I'm using a "frame" layout similar to the one in this excellent answer: a div #top at the top of the page, a div#left on the left, and a div #main with the main content. The #top and #left divs contain navigation menus. Now I want to use a popup div using the AjaxControlToolkit ModalPopupExtender inside the content (#main) div. This works fine on IE8 (where #top, #left, #main all have position:fixed), but when I run it on IE6, the modal background only covers the #main div - I need it to cover the whole of the page including the #top and #left navigation divs. Looking at the script for ModalPopupExtender, it appears to be searching up the parent hierarchy until it finds a parent with position relative or absolute. And in the IE6 rendering, the #main div has position:absolute because position:fixed is not supported, which I guess explains what is happening. Any suggestions for the best/easiest way to get this working properly on IE6? Ideally without modifying the ModalPopupExtender code, but I'll do this if I have to and it's the best solution.

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  • Layout Drawer doesn't add new view in a new line

    - by user547995
    Hy!! If i want to add a textview and a textedit, both are in the same line I have a Linear Layout <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="wrap_content" android:layout_height="wrap_content"> <TextView android:text="@+id/TextView01" android:id="@+id/TextView01" android:layout_width="wrap_content" android:layout_height="wrap_content"></TextView> <EditText android:text="@+id/EditText01" android:id="@+id/EditText01" android:layout_width="wrap_content" android:layout_height="wrap_content"></EditText> </LinearLayout> What i have made wrong?

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  • change background color of the layout in Android

    - by qwerty
    Hello, I have a simple Android application, with 3 buttons. When i click on the 1st button, i wanna change the background color of the layout (which is now white... i wanna change in other color, when i press the button). How can i do this? On that button, i have a myClickHndler event public void myClickHandler(View view) { switch (view.getId()) { case R.id.Button01: text.setText("Button 1 was clicked"); break; case R.id.Button03: //text.setText("Button 3 was clicked"); .................... // ? break; } } Thanks!

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  • Directory layout for a Python project with C extension modules

    - by Kamil Kisiel
    We have numerous projects in our organization that are mixed Python/C. Currently we're trying to standardize on a directory layout for our projects and are trying to come up with a convenient scheme. One point of contention is where to put C extension modules in the tree. We're tossing around a couple of options (relative to project root): ./src/package/subpackage/module.c or alongside the python modules in the package tree: ./package/subpackage/module.c or in a src directory in the subpackage: ./package/subpackage/src/module.c One reason for keeping them out of the package directories could be because it will lead to clutter, especially if there are other .c and .h files which aren't themselves modules but still need to be compiled. Also in the "integrated" scheme, what do you do with headers and files that are used by more than one module? Put them in a common top-level directory? I'd be interested to know what other people are using, or if there are any established best practices for this.

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  • cropped layout on the Android avd emulator

    - by SpellBound
    My application layout looks good on two slightly different avds I created in the development environment using Eclipse. However when I try to run these devices in the Emulator as standalone I see some missing buttons and cropped edges on the screen. I used the apk generated by Eclipse and installed it in the devices using adb - install. I want to know what the problem is. Also, any general guidelines to write an app that can run on any Android device for a given version. Thanks in advance.

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