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• Updating Samba From RPMs

  - by KnickerKicker

  My Red Hat Enterprise Edition 4 comes with Samba Version 3.0.10, which does not have support for the "inherit owner" attribute that is essential in implementing a Deny-Delete Write Once Read Many share (for examples, search google for a-shared-drop-box-using-samba). (BTW, if any body knows an alternative way to do it without updating samba, I'm all ears!) I am not all that comfortable building from source, and after hours of googling (no, I do not have a red hat subscription, so I cannot just run the up2date command), I found a whole bunch of rpms on http://ftp.sernet.de/pub/samba/tested/rhel/4/i386/ (Samba 3.2.15 for RHEL 4)... Next, I tried updating them with the rpm -U --nodeps command, but I got file conflict errors. So I went ahead and overwrote everything (or so I thought) by using the rpm's --force option. But no good has come of all that. /usr/sbin/smbd -V still returns the old version. As of now, rpm -qa | grep samba returns, samba3-client-3.2.15-40.el4 samba-3.0.10-1.4E.2 samba-client-3.0.10-1.4E.2 system-config-samba-1.2.21-1 samba3-3.2.15-40.el4 samba-common-3.0.10-1.4E.2 samba3-winbind-3.2.15-40.el4 I cannot remove the older ones because samba-common >= 3.0.8-0.pre1.3 is needed by (installed) gnome-vfs2-smb-2.8.2-8.2.x86_64 libsmbclient.so.0()(64bit) is needed by (installed) kdebase-3.3.1-5.8.x86_64 libsmbclient.so.0()(64bit) is needed by (installed) gnome-vfs2-smb-2.8.2-8.2.x86_64 Now thats a whole bunch of dependencies that I dare not touch :) Any and all pointer are welcome at this stage. Thanks in advance!

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• Assign highest priority to my local repository

  - by Anwar Shah

  Original question was : "How to assign highest priority to local repository without using sources.list file" I have setup a local repository with packages I downloaded. I use it to avoid downloading the same packages over the Internet, when I need to reinstall my Ubuntu. It is a basic repository, created with apt-ftparchive packages . > Packages. I made this a trusted repository to avoid "unauthenticated repository" warning. (When you have a untrusted repository, apt or synaptic try to download the same packages over the Internet, 'cause it is trusted). I have been using this local repository for at least 1 years. But I have to always put my local repository line at the top of the sources.list file to use this. But this is annoying, since I must open a terminal and do some typing on it every time I reinstall Ubuntu, though there is a better tool software-properties-gtk. I cannot use this tool since it place the source line at the end of `sources.list. And the real problem is that, the apt or synaptic always download a package from the source which is mentioned earlier, without inspecting whether the packages are already available in the local repository. So, I have no choice but to place the local source at the top of sources.list doing terminal (I actually don't hate terminal, but I need a solution) . I have tried this method. But this does not help me. My preference file is this in /etc/apt/preferences.d/local-pin-900 Package: * Pin: release o=Local,n=ubuntu-local Pin-Priority: 900 My release file is this Origin: Local Label: Local-Ubuntu Description: Local Ubuntu Repository Codename: ubuntu-local MD5Sum: ed43222856d18f389c637ac3d7dd6f85 1043412 Packages d41d8cd98f00b204e9800998ecf8427e 0 Sources When I enable the apt-preference, the apt-cache policy correctly shows the preference, e.g. It shows the local repository has the highest priority. But when I do this sudo apt-get install <package-name>, apt tries to download it from Internet. But when I place my local-repo at the top, it installs from local repository. So, My question is - 'Is it possible to force apt to use local repository when the package is available in local repository, without explicitly placing "the local source" at the top of my repository list (e.g sources.list file) ?' Edit: output of apt-cache policy $package_name is as follows nautilus-wipe: Installed: (none) Candidate: 0.1.1-2 Version table: 0.1.1-2 0 500 http://archive.ubuntu.com/ubuntu/ precise/universe i386 Packages 900 file:/media/Main/Linux-Software/Ubuntu/Precise/ Packages It is showing that my local repository has higher preference, though it is not the one which comes first in sources.list file. Here is the output of apt-get install nautilus-wipe Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: nautilus-wipe 0 upgraded, 1 newly installed, 0 to remove and 131 not upgraded. Need to get 30.7 kB of archives. After this operation, 150 kB of additional disk space will be used. 'http://archive.ubuntu.com/ubuntu/pool/universe/n/nautilus-wipe/nautilus-wipe_0.1.1-2_i386.deb' nautilus-wipe_0.1.1-2_i386.deb 30730 MD5Sum:7d497b8dfcefe1c0b51a45f3b0466994 It is still trying to get the file from Internet, though I think it should be happy with the local one.

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• Building ATLAS (and later Octave w/ ATLAS)

  - by David Parks

  I'm trying to set up ATLAS (so I can later compile octave with ATLAS support). If I'm correct, I still need to build this manually due to the environment specific optimizations. I do see a package for ATLAS, but it looks like it's using the cross platform generic build options (e.g. "it'll be slow"). So, running the configure script as described in the docs seems to go poorly. As a java developer I never do well at making heads or tails of errors in these build processes. Am I missing dependencies (if so is there any documentation on what I need)? allusers@vbubuntu:~/Downloads/atlas3.10.1/build_vbubuntu$ ../configure -b 64 -D c -DPentiumCPS=3000 --with-netlib-lapack-tarfile=/home/allusers/Downloads/lapack-3.5.0.tgz make: `xconfig' is up to date. ./xconfig -d s /home/allusers/Downloads/atlas3.10.1/build_vbubuntu/../ -d b /home/allusers/Downloads/atlas3.10.1/build_vbubuntu -b 64 -D c -DPentiumCPS=3000 -Si lapackref 1 OS configured as Linux (1) Assembly configured as GAS_x8664 (2) Vector ISA Extension configured as SSE3 (6,448) ERROR: enum fam=3, chip=2, mach=0 make[3]: *** [atlas_run] Error 44 make[2]: *** [IRunArchInfo_x86] Error 2 Architecture configured as Corei1 (25) ERROR: enum fam=3, chip=2, mach=0 make[3]: *** [atlas_run] Error 44 make[2]: *** [IRunArchInfo_x86] Error 2 Clock rate configured as 2350Mhz ERROR: enum fam=3, chip=2, mach=0 make[3]: *** [atlas_run] Error 44 make[2]: *** [IRunArchInfo_x86] Error 2 Maximum number of threads configured as 4 Parallel make command configured as '$(MAKE) -j 4' ERROR: enum fam=3, chip=2, mach=0 make[3]: *** [atlas_run] Error 44 make[2]: *** [IRunArchInfo_x86] Error 2 Cannot detect CPU throttling. rm -f config1.out make atlas_run atldir=/home/allusers/Downloads/atlas3.10.1/build_vbubuntu exe=xprobe_comp redir=config1.out \ args="-v 0 -o atlconf.txt -O 1 -A 25 -Si nof77 0 -V 448 -b 64 -d b /home/allusers/Downloads/atlas3.10.1/build_vbubuntu" make[1]: Entering directory `/home/allusers/Downloads/atlas3.10.1/build_vbubuntu' cd /home/allusers/Downloads/atlas3.10.1/build_vbubuntu ; ./xprobe_comp -v 0 -o atlconf.txt -O 1 -A 25 -Si nof77 0 -V 448 -b 64 -d b /home/allusers/Downloads/atlas3.10.1/build_vbubuntu > config1.out make[2]: gfortran: Command not found make[2]: *** [IRunF77Comp] Error 127 make[2]: g77: Command not found make[2]: *** [IRunF77Comp] Error 127 make[2]: f77: Command not found make[2]: *** [IRunF77Comp] Error 127 Unable to find usable compiler for F77; abortingMake sure compilers are in your path, and specify good compilers to configure (see INSTALL.txt or 'configure --help' for details)make[1]: *** [atlas_run] Error 8 make[1]: Leaving directory `/home/allusers/Downloads/atlas3.10.1/build_vbubuntu' make: *** [IRun_comp] Error 2 ERROR 512 IN SYSCMND: 'make IRun_comp args="-v 0 -o atlconf.txt -O 1 -A 25 -Si nof77 0 -V 448 -b 64"' mkdir src bin tune interfaces mkdir: cannot create directory ‘src’: File exists mkdir: cannot create directory ‘bin’: File exists mkdir: cannot create directory ‘tune’: File exists mkdir: cannot create directory ‘interfaces’: File exists make: *** [make_subdirs] Error 1 make -f Make.top startup make[1]: Entering directory `/home/allusers/Downloads/atlas3.10.1/build_vbubuntu' Make.top:1: Make.inc: No such file or directory Make.top:325: warning: overriding commands for target `/AtlasTest' Make.top:76: warning: ignoring old commands for target `/AtlasTest' make[1]: *** No rule to make target `Make.inc'. Stop. make[1]: Leaving directory `/home/allusers/Downloads/atlas3.10.1/build_vbubuntu' make: *** [startup] Error 2 mv: cannot move ‘lapack-3.5.0’ to ‘../reference/lapack-3.5.0’: Directory not empty mv: cannot stat ‘lib/Makefile’: No such file or directory ../configure: 450: ../configure: cannot create lib/Makefile: Directory nonexistent ../configure: 451: ../configure: cannot create lib/Makefile: Directory nonexistent ../configure: 452: ../configure: cannot create lib/Makefile: Directory nonexistent ../configure: 453: ../configure: cannot create lib/Makefile: Directory nonexistent ../configure: 509: ../configure: cannot create lib/Makefile: Directory nonexistent DONE configure

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• Help understand GLSL directional light on iOS (left handed coord system)

  - by Robse

  I now have changed from GLKBaseEffect to a own shader implementation. I have a shader management, which compiles and applies a shader to the right time and does some shader setup like lights. Please have a look at my vertex shader code. Now, light direction should be provided in eye space, but I think there is something I don't get right. After I setup my view with camera I save a lightMatrix to transform the light from global space to eye space. My modelview and projection setup: - (void)setupViewWithWidth:(int)width height:(int)height camera:(N3DCamera *)aCamera { aCamera.aspect = (float)width / (float)height; float aspect = aCamera.aspect; float far = aCamera.far; float near = aCamera.near; float vFOV = aCamera.fieldOfView; float top = near * tanf(M_PI * vFOV / 360.0f); float bottom = -top; float right = aspect * top; float left = -right; // projection GLKMatrixStackLoadMatrix4(projectionStack, GLKMatrix4MakeFrustum(left, right, bottom, top, near, far)); // identity modelview GLKMatrixStackLoadMatrix4(modelviewStack, GLKMatrix4Identity); // switch to left handed coord system (forward = z+) GLKMatrixStackMultiplyMatrix4(modelviewStack, GLKMatrix4MakeScale(1, 1, -1)); // transform camera GLKMatrixStackMultiplyMatrix4(modelviewStack, GLKMatrix4MakeWithMatrix3(GLKMatrix3Transpose(aCamera.orientation))); GLKMatrixStackTranslate(modelviewStack, -aCamera.position.x, -aCamera.position.y, -aCamera.position.z); } - (GLKMatrix4)modelviewMatrix { return GLKMatrixStackGetMatrix4(modelviewStack); } - (GLKMatrix4)projectionMatrix { return GLKMatrixStackGetMatrix4(projectionStack); } - (GLKMatrix4)modelviewProjectionMatrix { return GLKMatrix4Multiply([self projectionMatrix], [self modelviewMatrix]); } - (GLKMatrix3)normalMatrix { return GLKMatrix3InvertAndTranspose(GLKMatrix4GetMatrix3([self modelviewProjectionMatrix]), NULL); } After that, I save the lightMatrix like this: [self.renderer setupViewWithWidth:view.drawableWidth height:view.drawableHeight camera:self.camera]; self.lightMatrix = [self.renderer modelviewProjectionMatrix]; And just before I render a 3d entity of the scene graph, I setup the light config for its shader with the lightMatrix like this: - (N3DLight)transformedLight:(N3DLight)light transformation:(GLKMatrix4)matrix { N3DLight transformedLight = N3DLightMakeDisabled(); if (N3DLightIsDirectional(light)) { GLKVector3 direction = GLKVector3MakeWithArray(GLKMatrix4MultiplyVector4(matrix, light.position).v); direction = GLKVector3Negate(direction); // HACK -> TODO: get lightMatrix right! transformedLight = N3DLightMakeDirectional(direction, light.diffuse, light.specular); } else { ... } return transformedLight; } You see the line, where I negate the direction!? I can't explain why I need to do that, but if I do, the lights are correct as far as I can tell. Please help me, to get rid of the hack. I'am scared that this has something to do, with my switch to left handed coord system. My vertex shader looks like this: attribute highp vec4 inPosition; attribute lowp vec4 inNormal; ... uniform highp mat4 MVP; uniform highp mat4 MV; uniform lowp mat3 N; uniform lowp vec4 constantColor; uniform lowp vec4 ambient; uniform lowp vec4 light0Position; uniform lowp vec4 light0Diffuse; uniform lowp vec4 light0Specular; varying lowp vec4 vColor; varying lowp vec3 vTexCoord0; vec4 calcDirectional(vec3 dir, vec4 diffuse, vec4 specular, vec3 normal) { float NdotL = max(dot(normal, dir), 0.0); return NdotL * diffuse; } ... vec4 calcLight(vec4 pos, vec4 diffuse, vec4 specular, vec3 normal) { if (pos.w == 0.0) { // Directional Light return calcDirectional(normalize(pos.xyz), diffuse, specular, normal); } else { ... } } void main(void) { // position highp vec4 position = MVP * inPosition; gl_Position = position; // normal lowp vec3 normal = inNormal.xyz / inNormal.w; normal = N * normal; normal = normalize(normal); // colors vColor = constantColor * ambient; // add lights vColor += calcLight(light0Position, light0Diffuse, light0Specular, normal); ... }

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• 2D Tile based Game Collision problem

  - by iNbdy

  I've been trying to program a tile based game, and I'm stuck at the collision detection. Here is my code (not the best ^^): void checkTile(Character *c, int **map) { int x1,x2,y1,y2; /* Character position in the map */ c->upY = (c->y) / TILE_SIZE; // Top left corner c->downY = (c->y + c->h) / TILE_SIZE; // Bottom left corner c->leftX = (c->x) / TILE_SIZE; // Top right corner c->rightX = (c->x + c->w) / TILE_SIZE; // Bottom right corner x1 = (c->x + 10) / TILE_SIZE; // 10px from left side point x2 = (c->x + c->w - 10) / TILE_SIZE; // 10px from right side point y1 = (c->y + 10) / TILE_SIZE; // 10px from top side point y2 = (c->y + c->h - 10) / TILE_SIZE; // 10px from bottom side point /* Top */ if (map[c->upY][x1] > 2 || map[c->upY][x2] > 2) c->topCollision = 1; else c->topCollision = 0; /* Bottom */ if ((map[c->downY][x1] > 2 || map[c->downY][x2] > 2)) c->downCollision = 1; else c->downCollision = 0; /* Left */ if (map[y1][c->leftX] > 2 || map[y2][c->leftX] > 2) c->leftCollision = 1; else c->leftCollision = 0; /* Right */ if (map[y1][c->rightX] > 2 || map[y2][c->rightX] > 2) c->rightCollision = 1; else c->rightCollision = 0; } That calculates 8 collision points My moving function is like that: void movePlayer(Character *c, int **map) { if ((c->dirX == LEFT && !c->leftCollision) || (c->dirX == RIGHT && !c->rightCollision)) c->x += c->vx; if ((c->dirY == UP && !c->topCollision) || (c->dirY == DOWN && !c->downCollision)) c->y += c->vy; checkPosition(c, map); } and the checkPosition: void checkPosition(Character *c, int **map) { checkTile(c, map); if (c->downCollision) { if (c->state != JUMPING) { c->vy = 0; c->y = (c->downY * TILE_SIZE - c->h); } } if (c->leftCollision) { c->vx = 0; c->x = (c->leftX) * TILE_SIZE + TILE_SIZE; } if (c->rightCollision) { c->vx = 0; c->x = c->rightX * TILE_SIZE - c->w; } } This works, but sometimes, when the player is landing on ground, right and left collision points become equal to 1. So it's as if there were collision coming from left or right. Does anyone know why this is doing this?

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• Introducing the Metro User Interface on Windows 2012

  - by andywe

  Although I am a big fan of using PowerShell to do many of my server operations, that aspect is well covered by those far more knowledgeable than I, and there is vast information around the web already on that. The new Metro interface, and getting around both Windows 8 and Windows Server 2012 though is relatively new, even for those whop ran the previews. What is this? A blank Desktop!   Where did the start button go? Well, it is still there...sort of. It is hidden, and acts like an auto hidden component that appear only when the mouse is hovered over the lower left corner of the screen. Those familiar with Gnome or OSX can relate this to the "Hot Corners" functions. To get to the start button, hover your mouse in the very left corner of the task bar. Let it sit there a moment, and a small blue square with colored tiles in it called start will appear. Click it. I clicked it and now I have all the tiles..What is this?   Welcome to the Metro interface. This is a much more modern look, and although at first seems weird and cumbersome, I have actually found that it is a bit more extensible, allowing greater organization and customization than the older explorer desktop. If you look closely, you'll see each box represents either a program, or program group. First, a few basics about using the start view. First and foremost, a right mouse click will bring up a bar on the bottom, with an icon towards the right. Notice it is titled “All Apps”. An even easier way in many places is to hover your mouse in the exact opposite corner, in the upper right. A sidebar will open and expose what used to be a widget bar (remember Vista?), and there are options for Search, Start, and Settings.   Ok Great, but where is everything? It’s all there…Click the All Apps icon.   Look better? Notice the scroll bar at the bottom. Move it right..your desktop is sized to your content..so you can have a smaller, or larger amount of programs exposed. Each icon can be secondary clicked (right mouse click for most of us, and an options bar at the bottom, rather than the old small context menu, is opened with some very familiar options.   Notice the top of the Windows Explorer window has some new features. You still have your right mouse click functions, but since the shortcuts for these items already exist..just copy them. There are many ways, but here is a long way to show you more of the interface. 1. Right mouse click a program icon, and select the Open File Location option. 2. Trusty file manager opens…but if you look closely up at top edge of the window, you’ll see a nifty enhancement. An orange colored box that is titled Shortcut Tools and another lavender box Title Application tools. Each of these adds options at the top of the file manager window to make selection easy. Of course, you can still secondary click an item in the listing window too. 3. Click shortcut tools, right click your app shortcut and copy it. Then simply paste it into the desktop outside the File Explorer window Also note some of the newer features. The large icons up top below the menu that has many common operations. The options change as you select each menu item. Well, that’s it for this installment. I hope this helps you out.

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• Rails3 server and bundler error: uninitialized constant Bundler (NameError)

  - by .yandex.rurap-kasta

  I just install rails 3 and all gems that it need, but when I try to start server, it says about problem in boot script. [rap-kasta@acerAspire testR3]$ script/rails server /home/rap-kasta/tmp/testR3/config/boot.rb:7:in `rescue in <top (required)>': uninitialized constant Bundler (NameError) from /home/rap-kasta/tmp/testR3/config/boot.rb:2:in `<top (required)>' from script/rails:9:in `require' from script/rails:9:in `<main> So, I tried to reinstall Bundler, install "pre"-version (but really it has version number lower then i install by gem install bundler Now there are next gems in system: abstract (1.0.0) actionmailer (3.0.0.beta, 2.3.5, 2.3.4) actionpack (3.0.0.beta, 2.3.5, 2.3.4) activemodel (3.0.0.beta) activerecord (3.0.0.beta, 2.3.5, 2.3.4) activeresource (3.0.0.beta, 2.3.5, 2.3.4) activesupport (3.0.0.beta, 2.3.5, 2.3.4) arel (0.2.1, 0.2.pre) builder (2.1.2) bundler (0.9.5) erubis (2.6.5) fxri (0.3.7) fxruby (1.6.20) i18n (0.3.3) jemini (2010.1.24, 2010.1.5) mail (2.1.2) memcache-client (1.7.8) mime-types (1.16) mysql (2.8.1) nifty-generators (0.3.2, 0.3.0) rack (1.1.0, 1.0.1, 1.0.0) rack-mount (0.5.1, 0.4.0) rack-openid (0.2.3, 0.2.2) rack-test (0.5.3) rails (3.0.0.beta, 2.3.5, 2.3.4) railties (3.0.0.beta) rake (0.8.7) rawr (1.3.8) RedCloth (4.2.2) ruby-mysql (3.0.2) ruby-openid (2.1.7) rubygems-update (1.3.5) rubyzip (0.9.4, 0.9.1) rubyzip2 (2.0.1) sqlite3-ruby (1.2.5) text-format (1.0.0) text-hyphen (1.0.0) thor (0.13.2, 0.13.1) tzinfo (0.3.16) Also, there is same error with rails console and similar with bundle check: [rap-kasta@acerAspire testR3]$ bundle check /usr/lib/ruby/gems/1.9.1/gems/bundler-0.9.5/bin/bundle:12:in `rescue in <top (required)>': uninitialized constant Bundler::BundlerError (NameError) from /usr/lib/ruby/gems/1.9.1/gems/bundler-0.9.5/bin/bundle:10:in `<top (required)>' from /usr/bin/bundle:19:in `load' from /usr/bin/bundle:19:in `<main>'

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• Single player 'pong' game

  - by Jam

  I am just starting out learning pygame and livewires, and I'm trying to make a single-player pong game, where you just hit the ball, and it bounces around until it passes your paddle (located on the left side of the screen and controlled by the mouse), which makes you lose. I have the basic code, but the ball doesn't stay on the screen, it just flickers and doesn't remain constant. Also, the paddle does not move with the mouse. I'm sure I'm missing something simple, but I just can't figure it out. Help please! Here's what I have: from livewires import games import random games.init(screen_width=640, screen_height=480, fps=50) class Paddle(games.Sprite): image=games.load_image("paddle.bmp") def __init__(self, x=10): super(Paddle, self).__init__(image=Paddle.image, y=games.mouse.y, left=10) self.score=games.Text(value=0, size=25, top=5, right=games.screen.width - 10) games.screen.add(self.score) def update(self): self.y=games.mouse.y if self.top<0: self.top=0 if self.bottom>games.screen.height: self.bottom=games.screen.height self.check_collide() def check_collide(self): for ball in self.overlapping_sprites: self.score.value+=1 ball.handle_collide() class Ball(games.Sprite): image=games.load_image("ball.bmp") speed=5 def __init__(self, x=90, y=90): super(Ball, self).__init__(image=Ball.image, x=x, y=y, dx=Ball.speed, dy=Ball.speed) def update(self): if self.right>games.screen.width: self.dx=-self.dx if self.bottom>games.screen.height or self.top<0: self.dy=-self.dy if self.left<0: self.end_game() self.destroy() def handle_collide(self): self.dx=-self.dx def end_game(self): end_message=games.Message(value="Game Over", size=90, x=games.screen.width/2, y=games.screen.height/2, lifetime=250, after_death=games.screen.quit) games.screen.add(end_message) def main(): background_image=games.load_image("background.bmp", transparent=False) games.screen.background=background_image paddle_image=games.load_image("paddle.bmp") the_paddle=games.Sprite(image=paddle_image, x=10, y=games.mouse.y) games.screen.add(the_paddle) ball_image=games.load_image("ball.bmp") the_ball=games.Sprite(image=ball_image, x=630, y=200, dx=2, dy=2) games.screen.add(the_ball) games.mouse.is_visible=False games.screen.event_grab=True games.screen.mainloop() main()

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• CSS positioning inside div

  - by christian

  I am using a div with 2 elements inside and I want to position my 1st element to be vertically aligned top and 2nd element to the bottom of the div. The div is the right portion of my page and equal to the height of my main content. #right { float:right; width: 19%; background:#FF3300; margin-left:2px; padding-bottom: 100%; margin-bottom: -100%; } #right .top { display:block; background-color:#CCCCCC; } #right .bottom { bottom:0px; display:block; background-color:#FFCCFF; height:60px; } HTML: <div id="right"> <span class="top">Top element</span> <span class="bottom"><img src="images/logo_footer1.gif" width="57" height="57" align="left" class="img">&nbsp;<img src="images/logo_footer2.gif" width="57" height="57" align="right" class="img"></span> </div> I want the right div to be like this:

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• Scrolling issues with GridView in Android

  - by Jared Thigpen

  I am having weird scrolling issues in my pretty simple GridView. Each item in the Grid is simply and ImageView and a TextView. The activity itself is simply an application selector. It looks like a rough version of the basic App Tray in Android. The issue is that after spending some times scrolling through my view, it will inevitably allow me to continue scrolling past the top row of icons, to a blank screen, and the scroll bar will disappear, leaving me stuck. It doesn't happen every time I go to the top of the view, only sometimes, and usually only after some excessive scrolling. If I happen to notice the problem and catch it before the top row disappears off the bottom of the screen, I can usually scroll back through the view and spot some icons missing. There are empty spaces in the grid, and I can only assume that those icons have been moved to some bizarre position, which is allowing the view to scroll past the top. This is my first Android app beyond a basic Hello World, so it's likely that I've just screwed up something in my layout files. I also realize that this is probably a pretty confusing description, so I'm hoping someone has experienced this and my search abilities simply were unable to find it. I can post my layout files or other code if someone thinks that's useful. Oh, and the program is built against 1.5, but is running on 2.2 (whatever state of 2.2 that was that snuck out last week) on my phone. I don't have enough apps to test this on an emulator, but could probably set something up if someone felt it necessary. Thanks in advance for any help on the issue.

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• Arrrg! MovieClip object refuses to moved in any rational way in as3?

  - by Aaron H.

  I have a MovieClip object, which is exported for actionscript (AS3) in an .swc file. When I place an instance of the clip on the stage without any modifications, it appears in the upper left corner, about half off stage (i.e. only the lower right quadrant of the object is visible). I understand that this is because the clip has a registration point which is not the upper left corner. If you call getBounds() on the movieclip you can get the bounds of the clip (presumably from the "point" that it's aligned on) which looks something like (left: -303, top: -100, right: 303, bottom: 100), you can subtract the left and top values from the clip x and y: clip.x -= bounds.left; clip.y -= bounds.top; This seems to properly align the clip fully on stage with the top left of the clip squarely in the corner of the stage. But! Following that logic doesn't seem to work when aligning it on the center of the stage! clip.x = (stage.stageWidth / 2); etc... This creates the crazy parallel universe where the clip is now down in the lower right corner of the stage. The only clue I have is that looking at: clip.transform.matrix and clip.transform.concatenatedMatrix matrix has a tx value of 748 (half of stage height) ty value of 426 (Half of stage height) concatenatedMatrix has a tx value of 1699.5 and ty value of 967.75 That's also obviously where the movieclip is getting positioned, but why? Where is this additional translation coming from?

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• jQuery Bounce ignores positioning

  - by ashansky

  I'm having a problem trying to use the jQuery effect "bounce" on an absolutely position div inside of a relatively positioned div. The #Bounce div is positioned to be slightly above the container div and when a certain message is received it is supposed to bounce on top of it. But what ends up happening is that the #bounce div drops down into the container div and bounces inside of it till it stops and then correctly repositions itself on top of the container div. This same code is working in Firefox but doesn't seem to be working in Webkit or IE. Can anyone help me understand why this is happening? if (jQuery("#Bounce").data("bouncing") == false || jQuery("#Bounce").data("bouncing") == undefined) { jQuery("#Bounce").show().effect("bounce",{times:10,distance:50},300,function(){jQuery("#Bounce").data("bouncing", false);}); jQuery("#Bounce").data("bouncing", true); } <div id="Container" style="height: 28px; float: right; position: relative; top: 2px; cursor: pointer; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 3px; "> ... <div id="Bounce" style="bottom: 28px; right: 0px; height: 26px; width: 26px; z-index: 989; display: none; position: absolute; ">...</div> </div>

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• OpenGL-ES Texture Atlas. t axis is inverted.

  - by Feet

  I'm mapping a texture from my texture atlas to a square on a cube. For some reason, the t axis is inverted with 0 being at the top and 1 being at the bottom. Also, I have to specify the texture coordinates in clockwise order rather than counter-clockwise. I am using counter-clockwise windings. The vertices, indices and texture coordinates I'm using are below. float vertices[] = { // Front face -width, -height, depth, // 0 width, -height, depth, // 1 width, height, depth, // 2 -width, height, depth, // 3 // Back Face width, -height, -depth, // 4 -width, -height, -depth, // 5 -width, height, -depth, // 6 width, height, -depth, // 7 // Left face -width, -height, -depth, // 8 -width, -height, depth, // 9 -width, height, depth, // 10 -width, height, -depth, // 11 // Right face width, -height, depth, // 12 width, -height, -depth, // 13 width, height, -depth, // 14 width, height, depth, // 15 // Top face -width, height, depth, // 16 width, height, depth, // 17 width, height, -depth, // 18 -width, height, -depth, // 19 // Bottom face -width, -height, -depth, // 20 width, -height, -depth, // 21 width, -height, depth, // 22 -width, -height, depth, // 23 }; short indices[] = { // Front // Back 0,1,2, 0,2,3, 4,5,6, 4,6,7, // Left // Right 8,9,10, 8,10,11, 12,13,14, 12,14,15, // Top // Bottom 16,17,18, 16,18,19, 20,21,22, 20,22,23, }; float textures[] = { // Front 0.0f, 0.0f, 0.25f, 0.0f, 0.25f, 0.25f, 0.0f, 0.25f, // Back 0.25f, 0.0f, 0.50f, 0.0f, 0.50f, 0.25f, 0.25f, 0.25f, // Left 0.50f, 0.0f, 0.75f, 0.0f, 0.75f, 0.25f, 0.50f, 0.25f, // Right 0.75f, 0.0f, 1f, 0.0f, 1f, 0.25f, 0.75f, 0.25f, // Top 0.0f, 0.25f, 0.25f, 0.25f, 0.25f, 0.50f, 0.0f, 0.50f, // Bottom 0.25f, 0.25f, 0.50f, 0.25f, 0.50f, 0.50f, 0.25f, 0.50f, };

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• How can I make an AJAX link work once it is moved out of the iFrame?

  - by KcYxA

  Hi, I am using an iFrame with a form that return some content with an AJAX link. I am then moving the returned content out of the iFrame into the main page. However, then the ajax link does not work and the error "Element is null" is created once the link is clicked. How can I move content from the iFrame and still have the AJAX link working? Here's the code returned by the iFrame: <span id="top"> <a id="link8" onclick=" event.returnValue = false; return false;" href="/item_pictures/delete/7"> <img src="/img/delete.bmp"/> </a> <script type="text/javascript"> parent.Event.observe('link8', 'click', function(event) { new Ajax.Updater('top','/item_pictures/delete/3', { asynchronous:true, evalScripts:true, onCreate:function(request, xhr) { document.getElementById("top").innerHTML = "<img src=\"/img/spinner_small.gif\">"; }, requestHeaders:['X-Update', 'top'] }) }, false); </script> </span>

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• Implementing arrays using a stack

  - by Zack

  My programming language has no arrays, no lists, no pointers, no eval and no variable variables. All it has: Ordinary variables like you know them from most programming languages: They all have an exact name and a value. One stack. Functions provided are: push (add element to top), pop (remove element from top, get value) and empty (check if stack is empty) My language is turing-complete. (Basic arithmetics, conditional jumps, etc implemented) That means, it must be possible to implement some sort of list or array, right? But I have no idea how... What I want to achieve: Create a function which can retrieve and/or change an element x of the stack. I could easily add this function in the implementation of my language, in the interpreter, but I want to do it in my programming language. "Solution" one (Accessing an element x, counting from the stack top) Create a loop. Pop off the element from the stack top x times. The last element popped of is element number x. I end up with a destroyed stack. Solution two: Do the same as above, but store all popped off values in a second stack. Then you could move all elements back after you are done. But you know what? I don't have a second stack!

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• How can I select values from different rows depending on the most recent entry date, all for the sam

  - by user321185

  Basically I have a table which is used to hold employee work wear details. It is formed of the columns: EmployeeID, CostCentre, AssociateLevel, IssueDate, TrouserSize, TrouserLength, TopSize & ShoeSize. An employee can be assigned a pair of trousers, a top and shoes at the same time or only one or two pieces of clothing. As we all know peoples sizes and employee levels can change which is why I need help really. Different types of employees (associatelevels) require different colours of clothing but you can ignore this part. Everytime an employee receives an item of clothing a new row will be inserted into the table with an input date. I need to be able to select the most recent clothes size for each item of clothing for each employee. It is not necessary for all the columns to hold values because an employee could receive trousers or poloshirts at different times in the year. So for example if employee '54664LSS' was given a pair of 'XL' trousers and a 'L' top on 24/03/11 but then received a 'M' top on 26/05/10. The input of these items would be help on two different rows obviously. So if I wanted to select the most recent clothing for each clothes category. Then the values of the 'M' sized top and the 'L' sized trousers would need to be returned. Any help would be greatly appreciated as I'm pretty stuck :(. Thanks.

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• Can I add round cornres to HtmlPanelGrid in code or in page? If yes - how?

  - by Elena

  Hi all! I have a task - add round corners to HtmlPanelGrid. Now I am trying to do it with css (using 4 images for each corner - that css create our designer). I load css and try to do this in my code: this.grid = new HtmlPanelGrid(); this.grid.setStyleClass("toplist,toplist-top"); But no changes I could see in my page. I tried to load css and use it with tags, but it also didnt work and created one more problem - my jsf didn't reload and redisplay: <div class="toplist"> <div class="toplist-top"><h2>Top 10 List</h2></div> <div class="toplist-bg"> <div class="toplist-cont"> <rich:tab label="Top-List" id="screenTop"> <h:panelGrid id="topListTable" binding="#{chartBean.topListTable}" /> </rich:tab> <a4j:support event="onclick" reRender="menuSection" actionListener="#{chartBean.doChangeTab}" /> </div> </div> <div class="toplist-bottom"></div> </div> I am interesting of adding round corners to topListTable in the code. How can I do it? I load my css as: <link href="#{facesContext.externalContext.requestContextPath}/css/stylesheet.css" rel="styleSheet" type="text/css"/> If anybody knows, how can I add corners to the panelGrid. Sorry for stupid question, but I am newborn in jsf and richfaces, and I want to solve this task right Thanks!

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• UIView coordinate transforms on rotation during keyboard appearance

  - by SG

  iPad app; I'm trying to resize my view when the keyboard appears. It amounts to calling this code at appropriate times: CGRect adjustedFrame = self.frame; adjustedFrame.size.height -= keyboardFrame.size.height; [self setFrame:adjustedFrame]; Using this technique for a view contained in a uisplitview-based app works in all 4 orientations, but I've since discovered that a vanilla uiview-based app does not work. What happens is that apparently the uisplitview is smart enough to convert the coordinates of its subviews (their frame) such that the origin is in the "viewer's top left" regardless of the orientation. However, a uiview is not able to correctly report these coordinates. Though the origin is reported as (0,0) in all orientations, the view's effective origin is always as if the ipad were upright. What is weird about this is that the view correctly rotates and draws, but it always originates in the literal device top left. How can I get the view to correctly make its origin the "top left" to the viewer, not the device's fixed top left? What am I missing? Please, for something so trivial I've spent about 6 hours on this already with every brute force technique and research angle I could think of. This is the original source which doesn't work in this case: http://stackoverflow.com/questions/1951826/move-up-uitoolbar

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• jQuery .animate() not animating backgroundPosition in IE

  - by mikemike

  I'm trying to animate a background image to move down a set amount of pixels but remain in the center of the page. Upon another click of an element I need it to move back to the top, but still remain in the center. Below is the current code: $(document).ready(function() { $('#email_campaigns').click(function(){ var width = $(window).width(); width = (width / 2) - 700; if($('#email_campaigns_box').css('display') == 'none'){ //$('body').css('background-position','center 119px'); $('body').animate({ backgroundPosition: (width + "px 119px") }, {duration:500}); } else { //$('body').css('background-position','center top'); $('body').animate({ backgroundPosition: (width + "px 0px") }, {duration:500}); } $('#email_campaigns_box').slideToggle("slow"); $('#client_login_box').slideUp("slow"); }); $('#client_login').click(function(){ var width = $(window).width(); width = (width / 2) - 700; alert(width); if($('#client_login_box').css('display') == 'none'){ //$('body').css('background-position','center 119px'); $('body').animate({ backgroundPosition: (width + "px 119px") }, {duration:500}); } else { //$('body').css('background-position','center top'); $('body').animate({ backgroundPosition: (width + "px 0px") }, {duration:500}); } $('#client_login_box').slideToggle("slow"); $('#email_campaigns_box').slideUp("slow"); }); }); I cannot pass 'center', as it will onyl accept numeric values. My goal is to calulate the center of the page in pixels (width = (width / 2) - 700;), and then animate to this rough position (it's normally out by a few pixels due to scrollbars, and then force to the center using a .css() call. The problem is that IE does not want to play ball. IE will not animate at all. Firefox/Safari/Chrome all work as expected. Below is a live example: http://recklessnewmedia.com/new/# (click 'email campaigns' at the top). Thanks

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• C# Taking a element off each time (stack)

  - by Sef

  Greetings, Have a question considering a program that stimulates a stack.(not using any build in stack features or any such) stack2= 1 2 3 4 5 //single dimension array of 5 elements By calling up a method "pop" the stack should look like the following: Basically taking a element off each time the stack is being "called" up again. stack2= 1 2 3 4 0 stack2= 1 2 3 0 0 stack2= 1 2 0 0 0 stack2= 1 0 0 0 0 stack2= 0 0 0 0 0 - for (int i = 1; i <= 6; i++) { number= TryPop(s2); //use number ShowStack(s2, "s2"); } Basically I already have code that fills my array with values (trough a push method). The pop method should basically take the last value and place it on 0. Then calls up the next stack and place the following on 0 (like shown above in stack2). The current pop method that keeps track of the top index (0 elements = 0 top, 1 element = 1 top etc..). Already includes a underflow warning if this goes on 0 or below (which is correct). public int Pop() { if(top <= 0) { throw new Exception("Stack underflow..."); } else { for (int j = tabel.Length - 1; j >= 0; j--) { //...Really not sure what to do here. } } return number; }/*Pop*/ Since in the other class I already have a loop (for loop shown above) that simulates 6 times the s2 stack. (first stack: 1 2 3 4 0, second stack 1 2 3 0 0 and so on.) How exactly do I take a element off each time? Either I have the entire display on 0 or the 0 in the wrong places / out of index errors. Thanks in advance!

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• Determine whether a canvas has been inserted into each page

  - by Hadi Teo

  Hi, Currently i have a code which will print OMR Mark on each pages. Basically i insert a canvas into each page and subsequently an OMR Mark Line Series are inserted into the canvas. Recently i found an issue that somehow one of the canvas is placed out of a page and it appears at the previous page instead of the current page. Below is the code snippet in how i inserted canvas as well as OMR Marks into each page: ' Start Code Snippet Sub GenerateOMR() Dim ShpCanvas As Shape Dim MaxPages As Integer Dim PNo As Integer ClearOMR MaxPages = Selection.Information(wdNumberOfPagesInDocument) For PNo = 1 To MaxPages Selection.GoTo What:=wdGoToPage, Which:=wdGoToFirst, Count:=PNo, Name:="" Select Case PNo Case 1 Set ShpCanvas = ActiveDocument.Shapes.AddCanvas(0, 0.5, 600, 300) Case Else Set ShpCanvas = ActiveDocument.Shapes.AddCanvas(0, 0, 600, 300) End Select ' Add a canvas on each page With ShpCanvas .Name = "OMR_Canvas_" & CStr(PNo) .RelativeHorizontalPosition = wdRelativeHorizontalPositionPage .RelativeVerticalPosition = wdRelativeVerticalPositionPage End With ' Insert a white background rectange and remove the rectangle border line With ShpCanvas.CanvasItems.AddShape(msoShapeRectangle, 536, 0, 64, 300) .Name = "OMR_WhiteBackground_" & CStr(PNo) .Fill.ForeColor.RGB = RGB(255, 255, 255) .Line.ForeColor.RGB = RGB(255, 255, 255) End With PrintOMRPage ShpCanvas, PNo Next PNo End Sub ' End Code Snippet There is a custom method called PrintOMRPage method which is not relevant here. My question now, how do i know whether a canvas has been inserted into a page ? Basically i will loop in all the pages and check whether a canvas has been inserted into that page. Apparently i cannot find the correct way. I have tried to check using ActiveDocument.Shapes(1).Top and validate whether the Top position is a negative value. But apparently the Top position is always measured from the top of each page. Thanks for the help. hadi teo

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• Table is centering by itself?

  - by user146780

  I have a page here: http://animactions.ca/Animactions/accueil.php and it has a right column. When the right column's content is longer than then the main content, the main content centers rather than start at the top despite I defining it in a style not to do so. From my style sheet: .tbsyles { margin: 0px; text-align: justify; width: 200px; border-left-style: solid; border-left-width: 1px; border-left-color: #A8CFE4; padding-left: 30px; height: 100%; line-height: 100%; vertical-align: top; padding-right: 0px; } .tablestylea { width: 900px; margin: 0px; text-align: justify; height: 100%; line-height: 100%; vertical-align: top; padding-right: 0px; } How can I make it so no matter what the length of my right col content the main content page resizes correctly and starts from the top rather than from the center? Thanks

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• Impact of ordering of correlated subqueries within a projection

  - by Michael Petito

  I'm noticing something a bit unexpected with how SQL Server (SQL Server 2008 in this case) treats correlated subqueries within a select statement. My assumption was that a query plan should not be affected by the mere order in which subqueries (or columns, for that matter) are written within the projection clause of the select statement. However, this does not appear to be the case. Consider the following two queries, which are identical except for the ordering of the subqueries within the CTE: --query 1: subquery for Color is second WITH vw AS ( SELECT p.[ID], (SELECT TOP(1) [FirstName] FROM [Preference] WHERE p.ID = ID AND [FirstName] IS NOT NULL ORDER BY [LastModified] DESC) [FirstName], (SELECT TOP(1) [Color] FROM [Preference] WHERE p.ID = ID AND [Color] IS NOT NULL ORDER BY [LastModified] DESC) [Color] FROM Person p ) SELECT ID, Color, FirstName FROM vw WHERE Color = 'Gray'; --query 2: subquery for Color is first WITH vw AS ( SELECT p.[ID], (SELECT TOP(1) [Color] FROM [Preference] WHERE p.ID = ID AND [Color] IS NOT NULL ORDER BY [LastModified] DESC) [Color], (SELECT TOP(1) [FirstName] FROM [Preference] WHERE p.ID = ID AND [FirstName] IS NOT NULL ORDER BY [LastModified] DESC) [FirstName] FROM Person p ) SELECT ID, Color, FirstName FROM vw WHERE Color = 'Gray'; If you look at the two query plans, you'll see that an outer join is used for each subquery and that the order of the joins is the same as the order the subqueries are written. There is a filter applied to the result of the outer join for color, to filter out rows where the color is not 'Gray'. (It's odd to me that SQL would use an outer join for the color subquery since I have a non-null constraint on the result of the color subquery, but OK.) Most of the rows are removed by the color filter. The result is that query 2 is significantly cheaper than query 1 because fewer rows are involved with the second join. All reasons for constructing such a statement aside, is this an expected behavior? Shouldn't SQL server opt to move the filter as early as possible in the query plan, regardless of the order the subqueries are written?

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• '$.fn' is null or not an object

  - by metal-gear-solid

  Problem 1 Error: Microsoft JScript runtime error: '$.fn' is null or not an object Error area: $.fn.apply=function(item,content,header){ $(".featureBox"+item).css('z-index', "1000"); $("img.featureBox" + item +"top").attr("src",basepath + "box-big-top.jpg"); $("img.featureBox" + item +"imgcut").attr("src",basepath + "box-big-img"+item+".jpg"); featureboxcont[item].attr("src",basepath + "box-big-cont.jpg"); $("img.featureBox" + item +"foot").attr("src",basepath + "box-big-bot2.jpg"); //$("#NoteModalDialog > #x-dlg-bd > #x-dlg-tab > #acc-ct") $("#box"+item+"headtext > .h2div > h2").text(header); $("#box"+item+"bottext").css({"top":"181px","width":"205px","font-size":"12px","color":"#ffffff","left":"10"}); $("#box"+item+"foottext").css({"top":footheight+"px","width":"215px","left":"20"}); $("#box"+item+"hidden").css({"display":"block"}); $("#box"+item+"bottext").text(content); $("#box"+item+"headtext > .h2div > h2").removeClass("sIFR-replaced"); callsIFR(); } Problem 2 Error : Microsoft JScript runtime error: 'null' is null or not an object Error area : $("#innerWrapper").addClass("js-version"); I'm also using protoype.js on page.

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• Catching a nested-in-template exception [C++]

  - by Karol

  Hello, I have a problem with writing a catch clause for an exception that is a class nested in a template. To be more specific, I have a following definition of the template and exception: /** Generic stack implementation. Accepts std::list, std::deque and std::vector as inner container. */ template < typename T, template < typename Element, typename = std::allocator<Element> > class Container = std::deque > class stack { public: class StackEmptyException { }; ... /** Returns value from the top of the stack. Throws StackEmptyException when the stack is empty. */ T top() const; ... } I have a following template method that I want exception to catch: template <typename Stack> void testTopThrowsStackEmptyExceptionOnEmptyStack() { Stack stack; std::cout << "Testing top throws StackEmptyException on empty stack..."; try { stack.top(); } catch (Stack::StackEmptyException) { // as expected. } std::cout << "success." << std::endl; } When I compile it (-Wall, -pedantic) I get the following error: In function ‘void testTopThrowsStackEmptyExceptionOnEmptyStack()’: error: expected type-specifier error: expected unqualified-id before ‘)’ token === Build finished: 2 errors, 0 warnings === Thanks in advance for any help! What is interesting, if the stack implementation was not a template, then the compiler would accept the code as it is.

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