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  • Using/Calling a cursor in another cursor - PL/Sql

    - by Cindy
    I have a function with a cursor which returns an ID. I need to get some fields in another cursor using this ID result from the first cursor. So my first cursor is: CREATE OR REPLACE function get_id(id number) CURSOR child_id IS SELECT table1_id FROM table1,child WHERE child_id = id AND table1_id = child_chld_id; Ideally my second cursor should be: cursor grandchild_id is select table1_id from table1,child where child_id = (return value of id from cursor child_id) and table1_id = child_chld_id; How do I do this?

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  • Shuffle tiles position in the beginning of the game XNA Csharp

    - by GalneGunnar
    Im trying to create a puzzlegame where you move tiles to certain positions to make a whole image. I need help with randomizing the tiles startposition so that they don't create the whole image at the beginning. There is also something wrong with my offset, that's why it's set to (0,0). I know my code is not good, but Im just starting to learn :] Thanks in advance My Game1 class: { public class Game1 : Microsoft.Xna.Framework.Game { GraphicsDeviceManager graphics; SpriteBatch spriteBatch; Texture2D PictureTexture; Texture2D FrameTexture; // Offset för bildgraff Vector2 Offset = new Vector2(0,0); //skapar en array som ska hålla delar av den stora bilden Square[,] squareArray = new Square[4, 4]; // Random randomeraBilder = new Random(); //Width och Height för bilden int pictureHeight = 95; int pictureWidth = 144; Random randomera = new Random(); int index = 0; MouseState oldMouseState; int WindowHeight; int WindowWidth; public Game1() { graphics = new GraphicsDeviceManager(this); Content.RootDirectory = "Content"; //scalar Window till 800x 600y graphics.PreferredBackBufferWidth = 800; graphics.PreferredBackBufferHeight = 600; graphics.ApplyChanges(); } protected override void Initialize() { IsMouseVisible = true; base.Initialize(); } protected override void LoadContent() { spriteBatch = new SpriteBatch(GraphicsDevice); PictureTexture = Content.Load<Texture2D>(@"Images/bildgraff"); FrameTexture = Content.Load<Texture2D>(@"Images/framer"); //Laddar in varje liten bild av den stora bilden i en array for (int x = 0; x < 4; x++) { for (int y = 0; y < 4; y++) { Vector2 position = new Vector2(x * pictureWidth, y * pictureHeight); position = position + Offset; Rectangle square = new Rectangle(x * pictureWidth, y * pictureHeight, pictureWidth, pictureHeight); Square frame = new Square(position, PictureTexture, square, Offset, index); squareArray[x, y] = frame; index++; } } } protected override void UnloadContent() { } protected override void Update(GameTime gameTime) { if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed) this.Exit(); MouseState ms = Mouse.GetState(); if (oldMouseState.LeftButton == ButtonState.Pressed && ms.LeftButton == ButtonState.Released) { // ta reda på vilken position vi har tryckt på int col = ms.X / pictureWidth; int row = ms.Y / pictureHeight; for (int x = 0; x < squareArray.GetLength(0); x++) { for (int y = 0; y < squareArray.GetLength(1); y++) { // kollar om rutan är tom och så att indexet inte går utanför för "col" och "row" if (squareArray[x, y].index == 0 && col >= 0 && row >= 0 && col <= 3 && row <= 3) { if (squareArray[x, y].index == 0 * col) { //kollar om rutan brevid mouseclick är tom if (col > 0 && squareArray[col - 1, row].index == 0 || row > 0 && squareArray[col, row - 1].index == 0 || col < 3 && squareArray[col + 1, row].index == 0 || row < 3 && squareArray[col, row + 1].index == 0) { Square sqaure = squareArray[col, row]; Square hal = squareArray[x, y]; squareArray[x, y] = sqaure; squareArray[col, row] = hal; for (int i = 0; i < 4; i++) { for (int j = 0; j < 4; j++) { Vector2 goalPosition = new Vector2(x * pictureWidth, y * pictureHeight); squareArray[x, y].Swap(goalPosition); } } } } } } } } //if (oldMouseState.RightButton == ButtonState.Pressed && ms.RightButton == ButtonState.Released) //{ // for (int x = 0; x < 4; x++) // { // for (int y = 0; y < 4; y++) // { // } // } //} oldMouseState = ms; base.Update(gameTime); } protected override void Draw(GameTime gameTime) { GraphicsDevice.Clear(Color.CornflowerBlue); WindowHeight = Window.ClientBounds.Height; WindowWidth = Window.ClientBounds.Width; Rectangle screenPosition = new Rectangle(0,0, WindowWidth, WindowHeight); spriteBatch.Begin(); spriteBatch.Draw(FrameTexture, screenPosition, Color.White); //Ritar ut alla brickorna förutom den som har index 0 for (int x = 0; x < 4; x++) { for (int y = 0; y < 4; y++) { if (squareArray[x, y].index != 0) { squareArray[x, y].Draw(spriteBatch); } } } spriteBatch.End(); base.Draw(gameTime); } } } My square class: class Square { public Vector2 position; public Texture2D grafTexture; public Rectangle square; public Vector2 offset; public int index; public Square(Vector2 position, Texture2D grafTexture, Rectangle square, Vector2 offset, int index) { this.position = position; this.grafTexture = grafTexture; this.square = square; this.offset = offset; this.index = index; } public void Draw(SpriteBatch spritebatch) { spritebatch.Draw(grafTexture, position, square, Color.White); } public void RandomPosition() { } public void Swap(Vector2 Goal ) { if (Goal.X > position.X) { position.X = position.X + 144; } else if (Goal.X < position.X) { position.X = position.X - 144; } else if (Goal.Y < position.Y) { position.Y = position.Y - 95; } else if (Goal.Y > position.Y) { position.Y = position.Y + 95; } } } }

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  • Android strange behavior with listview and custom cursor adapter

    - by Michael Little
    I have a problem with a list view and a custom cursor adapter and I just can't seem to figure out what is wrong with my code. Basically, in my activity I call initalize() that does a bunch of stuff to handle getting the proper data and initializing the listview. On first run of the activity you can see from the images that one of the items is missing from the list. If I go to another activity and go back to this activity the item that was missing shows up. I believe it has something to do with setContentView(R.layout.parent). If I move that to my initialize() then the item never shows up even when returning from another activity. So, for some reason, returning from another activity bypasses setContentView(R.layout.parent) and everything works fine. I know it's impossible for me to bypass setContentView(R.layout.parent) so I need to figure out what the problem is. Also, I did not include the layout because it is nothing more then two textviews. Also, the images I have attached do not show that the missing item is the last one on the list. Custom Cursor Adapter: public class CustomCursorAdapter extends SimpleCursorAdapter { private Context context; private int layout; public CustomCursorAdapter (Context context, int layout, Cursor c, String[] from, int[] to) { super(context, layout, c, from, to); this.context = context; this.layout = layout; } public View newView(Context context, Cursor cursor, ViewGroup parent) { LayoutInflater inflater = LayoutInflater.from(context); final View view = inflater.inflate(layout, parent, false); return view; } @Override public void bindView(View v, Context context, Cursor c) { if (c.getColumnName(0).matches("section")){ int nameCol = c.getColumnIndex("section"); String section = c.getString(nameCol); TextView section_text = (TextView) v.findViewById(R.id.text1); if ((section.length() > 0)) { section_text.setText(section); } else { //so we don't have an empty spot section_text.setText(""); section_text.setVisibility(2); section_text.setHeight(1); } } else if (c.getColumnName(0).matches("code")) { int nameCol = c.getColumnIndex("code"); String mCode = c.getString(nameCol); TextView code_text = (TextView) v.findViewById(R.id.text1); if (code_text != null) { int i = 167; byte[] data = {(byte) i}; String strSymbol = EncodingUtils.getString(data, "windows-1252"); mCode = strSymbol + " " + mCode; code_text.setText(mCode); code_text.setSingleLine(); } } if (c.getColumnName(1).matches("title")){ int nameCol = c.getColumnIndex("title"); String mTitle = c.getString(nameCol); TextView title_text = (TextView) v.findViewById(R.id.text2); if (title_text != null) { title_text.setText(mTitle); } } else if (c.getColumnName(1).matches("excerpt")) { int nameCol = c.getColumnIndex("excerpt"); String mExcerpt = c.getString(nameCol); TextView excerpt_text = (TextView) v.findViewById(R.id.text2); if (excerpt_text != null) { excerpt_text.setText(mExcerpt); excerpt_text.setSingleLine(); } } } The Activity: public class parent extends ListActivity { private static String[] TITLE_FROM = { SECTION, TITLE, _ID, }; private static String[] CODE_FROM = { CODE, EXCERPT, _ID, }; private static String ORDER_BY = _ID + " ASC"; private static int[] TO = { R.id.text1, R.id.text2, }; String breadcrumb = null; private MyData data; private SQLiteDatabase db; CharSequence parent_id = ""; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); data = new MyData(this); db = data.getReadableDatabase(); setContentView(R.layout.parent); initialize(); } public void initialize() { breadcrumb = null; Bundle bun = getIntent().getExtras(); TextView tvBreadCrumb; tvBreadCrumb = (TextView)findViewById(R.id.breadcrumb); if (bun == null) { //this is the first run tvBreadCrumb.setText(null); tvBreadCrumb.setHeight(0); parent_id = "0"; try { Cursor cursor = getData(parent_id); showSectionData(cursor); } finally { data.close(); } } else { CharSequence state = bun.getString("state"); breadcrumb = bun.getString("breadcrumb"); tvBreadCrumb.setText(breadcrumb); CharSequence code = bun.getString("code"); parent_id = code; if (state.equals("chapter")) { try { Cursor cursor = getData(parent_id); showSectionData(cursor); } finally { data.close(); } } else if (state.equals("code")) { try { Cursor cursor = getCodeData(parent_id); showCodeData(cursor); } finally { data.close(); } } } } @Override public void onStart() { //initialize(); super.onResume(); } @Override public void onResume() { initialize(); super.onResume(); } private Cursor getData(CharSequence parent_id) { Cursor cTitles = db.query(TITLES_TABLE_NAME, TITLE_FROM, "parent_id = " + parent_id, null, null, null, ORDER_BY); Cursor cCodes = db.query(CODES_TABLE_NAME, CODE_FROM, "parent_id = " + parent_id, null, null, null, ORDER_BY); Cursor[] c = {cTitles, cCodes}; Cursor cursor = new MergeCursor(c); startManagingCursor(cursor); return cursor; } private Cursor getCodeData(CharSequence parent_id2) { Bundle bun = getIntent().getExtras(); CharSequence intent = bun.getString("intent"); CharSequence searchtype = bun.getString("searchtype"); //SQLiteDatabase db = data.getReadableDatabase(); if (intent != null) { String sWhere = null; if(searchtype.equals("code")) { sWhere = "code LIKE '%"+parent_id2+"%'"; } else if(searchtype.equals("within")){ sWhere = "definition LIKE '%"+parent_id2+"%'"; } //This is a search request Cursor cursor = db.query(CODES_TABLE_NAME, CODE_FROM, sWhere, null, null, null, ORDER_BY); startManagingCursor(cursor); return cursor; } else { Cursor cursor = db.query(CODES_TABLE_NAME, CODE_FROM, "parent_id = "+ parent_id2, null, null, null, ORDER_BY); startManagingCursor(cursor); return cursor; } } private void showSectionData(Cursor cursor) { CustomCursorAdapter adapter= new CustomCursorAdapter(this, R.layout.item, cursor, TITLE_FROM, TO); setListAdapter(adapter); } private void showCodeData(Cursor cursor) { CustomCursorAdapter adapter = new CustomCursorAdapter(this, R.layout.item, cursor, CODE_FROM, TO); setListAdapter(adapter); Bundle bun = getIntent().getExtras(); CharSequence intent = bun.getString("intent"); if (intent != null) { Cursor cursor1 = ((CursorAdapter)getListAdapter()).getCursor(); startManagingCursor(cursor1); TextView tvBreadCrumb; tvBreadCrumb = (TextView)findViewById(R.id.breadcrumb); tvBreadCrumb.setText(cursor1.getCount() + " Records Found"); //cursor1.close(); //mdl } }

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  • Getting javascript mouse position relative to website prefferably without jQuery

    - by Constructor
    I've found this snippet on Ajaxian, but I can't seem to use the cursor.y (or cursor.x) as a variable and when the function is called as such it does not seem to work. Is there a syntax problem or something else? function getPosition(e) { e = e || window.event; var cursor = {x:0, y:0}; if (e.pageX || e.pageY) { cursor.x = e.pageX; cursor.y = e.pageY; } else { cursor.x = e.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft) - document.documentElement.clientLeft; cursor.y = e.clientY + (document.documentElement.scrollTop || document.body.scrollTop) - document.documentElement.clientTop; } return cursor; } I'd preffer not to use jQuery UI if possible, since I've always thaught of jQuery and librarys as a bit of an overkill for most JS programing.

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  • Ubuntu 12.4 cursor changes

    - by mantic0
    I have a weird problem with my Ubuntu 12.4 dual screen setup (Toshiba laptop + one monitor). After a while the cursor on one screen completely changes its shape (not every time). I don't really know how to describe it because it's always something else. Sometimes I get four or five vertical lines instead of a cursor, sometimes I can only see part of the cursor, etc, sometimes weird shade appears. This only happens on one screen simultaneously. If I go to the other screen, the cursor appears to be fine but when I change screens, the cursor changes. I tried to do a screenshot but when I do, the cursor looks just fine. I'm using Unity and Gnome 3 but the problem is on both desktop environments. Nothing is wrong with my screen though because I'm also using Windows and I don't have any problems there.

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  • XNA move from start position to target position exactly in 3D

    - by robasaurus
    If I have a list of positions that map out a path a character should follow. What would be the best way to move at a constant speed to each position making sure the character lands exactly at each position before moving onto the next? For example the character is at position A, we then queue up position B and position C. The character cannot move towards position C until it reaches position B exactly. It would be great if the solution worked at slower frame rates/update speeds as well.

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  • How to hide the mouse cursor

    - by MvG
    I'm building a kiosk using Ubuntu Precise on a touch screen. Now I'm looking for the appropriate way to make the mouse cursor disappear. As people know where they are pointing, displaying an arrow under their finger is useless, and having an error where they last pointed even more so. My best bet would be some kind of cursor theme consisting only of transparent cursors. I'm a bit surprised to find no UI to switch and maybe install cursor themes the default Unity UI, but as I won't be using Unity, that's not much of a problem. It appears that the alternatives listed in update-alternatives --list x-cursor-theme all refer to .theme files, so I searched the package list for those. The resulting list does not list any likely candidates, i.e. no packages containing “invisible” or “transparent” in their name. So far, some googled result yielding a readme for “XCursor Transparent Theme” is my best bet. That would mean compiling those sources myself, perhaps putting them into my PPA. I'm also a bit sceptical about that result as said readme is dated from 2003. And I'm not sure that I'm not making things overly complicated. After all, there is quite some support in Precise for touch devices, so I don't believe I'm the first one who wants to get rid of his mouse cursor. Is there another way which doesn't involve user-compiled binary code? Is there a theme package for transparent cursors which I've overlooked? Is there some other mechanism to make the cursor disappear without changing the cursor theme? I'll be using Matchbox WM, Firefox and Java applets, so I'll be happy with any solution working under such a setup. I'm not interested in any solutions twiddling with Gnome or Compiz, as I'll not be running either.

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  • Hide cursor in Chrome (and IE)

    - by Chris
    I have the following CSS that hides the mouse cursor for anything on the web page. It works perfectly in FireFox but in IE and and Chrome it doesn't work. html { cursor: none; } In Chrome I always see the mouse pointer. In IE however I see whatever cursor was last 'active' when it entered the screen. Presumably it's keeping the last selection instead of removing it.

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  • Inconsistent mouse cursor status while typing

    - by Jim
    I have noticed that when I type in some programs, Text Editor, Terminal, Bluefish, Gnome Baker, etc. the mouse cursor disappears while I am typing. In other programs like Firefox and LibreOffice, it does not. I am not an application programmer, but I imagined it has to do with their cross-platform nature and the way they are compiled or the toolkits they use. Then I noticed that Gnome-Do behaves the same way, the cursor stays on screen while typing. Why is there inconsistent handling of the mouse cursor, while typing, across different applications? Thank you.

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  • cursor jumps when moving (and some other times)

    - by nyne
    i updated to 12.10 beta 1 when it was released (coming from 12.04 fresh install, i skipped the alpha releases of 12.10) since then i've done all the usual updates but ive had an issue with my cursor jumping. it does not jump when typing, i've done a lot of searching and cant find an answer, it tends to happen most when i move the cursor the jump is maybe 15-20 pixels down and to the right it seems like a display issue because if i hover over a link or the x to close a window the cursor will settle in it's down/right position, but the whatever im hovering over will still act as if that's where the mouse is, and clicking still works on the item. so the mouse is actually in its original location, but it's displaying offset and flickering back and forth from its down/right position and its correct position this makes use very difficult because the mouse is never displayed where it actually is and i have to estimate my clicks any ideas?

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  • Maintain scroll position in ASP.NET

    - by nikolaosk
    One of the most common questions I get is " How to maintain the scroll position-location when a postback occurs in our ASP.NET application? " A lot of times when we click on a e.g a button in our application and a postback occurs, our application "loses" its scroll position. The default behaviour is to go back to the top of the page. There is a very nice feature in ASP.NET that enables us to maintain the scroll position in ASP.NET. The name of this attribute is MaintainScrollPositionOnPostBack ....(read more)

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  • Maintain scroll position in ASP.NET

    - by nikolaosk
    One of the most common questions I get is " How to maintain the scroll position-location when a postback occurs in our ASP.NET application? " A lot of times when we click on a e.g a button in our application and a postback occurs, our application "loses" its scroll position. The default behaviour is to go back to the top of the page. There is a very nice feature in ASP.NET that enables us to maintain the scroll position in ASP.NET. The name of this attribute is MaintainScrollPositionOnPostBack ....(read more)

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  • 12.04 tablet cursor jumps around when clicking

    - by Larry
    After updating to 12.04 i had to re-install wizardpen-driver (https://help.ubuntu.com/community/TabletSetupWizardpen) to use my Trust tablet. But now when I change the Coordinate Transformation Matrix to anything else but the identity matrix, moving the pen moves the cursor normally, but when I click (or press with the pen) the cursor jumps to the edge of the screen, seemingly depending on how I edit the matrix. I know the tablet isn't broken since this behaviour doesn't occur if I leave the matrix as an identity matrix, and the tablet works perfectly on Windows. -L

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  • Fixed Position div Vertical Only

    - by user720033
    I have a current web build with a right sidebar that is a fixed position. I have tried to positioning from the right but don't want it overlapping other divs content. What I am looking for is to have the content scrollable horizontally to the right when it is out of the viewport window. Any help would be greatly appreciated. similarly to this: http://demo.rickyh.co.uk/css-position-x-and-position-y/ however I can not get this working. This has been solved by alternative method. Thanks for those who actually considered helping.

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  • Mouse click events are delayed when moving the cursor in xubuntu 12.04

    - by bobbaluba
    I am trying out live xubuntu on my samsung n150 (netbook, similar to eeepc). So far everything seems perfect, except for this one thing. When I am clicking the mouse while moving the cursour, the click event is delayed. This is extremely annoying when i try to to move windows, because i end up clicking the window behind the window i am trying to move and thereby changing focus. This goes for all applications. I.e selecting text is difficult. There is no lag in the cursor movement, just the click event. The click event is registered with the new mouse position, not the one when the mouse was clicked. I tried searching for the problem, but all the other cases where either kind of different, or had no solution. EDIT: After testing some more, here are some more information. The click doesn't occur until i stop moving the cursor. If I move the cursor smoothly around, the click never gets through. I have ubuntu netbook remix 10.04 installed, and have no problems with the mouse there. EDIT2: Once I connected a usb-mouse, the problem dissappeared. Dragging now works perfectly with both the track pad and the usb mouse. I will update once I have installed xubuntu and figured out if this is a persistant problem. EDIT3: I have installed, and the problem is still there. It dissappears when I have a second mouse connected however, and after I resume from suspend. My solution for now, is just to keep the dongle connected all the time.

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  • Position Reconstruction from Depth by inverting Perspective Projection

    - by user1294203
    I had some trouble reconstructing position from depth sampled from the depth buffer. I use the equivalent of gluPerspective in GLM. The code in GLM is: template GLM_FUNC_QUALIFIER detail::tmat4x4 perspective ( valType const & fovy, valType const & aspect, valType const & zNear, valType const & zFar ) { valType range = tan(radians(fovy / valType(2))) * zNear; valType left = -range * aspect; valType right = range * aspect; valType bottom = -range; valType top = range; detail::tmat4x4 Result(valType(0)); Result[0][0] = (valType(2) * zNear) / (right - left); Result[1][2] = (valType(2) * zNear) / (top - bottom); Result[2][3] = - (zFar + zNear) / (zFar - zNear); Result[2][4] = - valType(1); Result[3][5] = - (valType(2) * zFar * zNear) / (zFar - zNear); return Result; } There doesn't seem to be any errors in the code. So I tried to invert the projection, the formula for the z and w coordinates after projection are: and dividing z' with w' gives the post-projective depth (which lies in the depth buffer), so I need to solve for z, which finally gives: Now, the problem is I don't get the correct position (I have compared the one reconstructed with a rendered position). I then tried using the respective formula I get by doing the same for this Matrix. The corresponding formula is: For some reason, using the above formula gives me the correct position. I really don't understand why this is the case. Have I done something wrong? Could someone enlighten me please?

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  • Cursor lag when mouse cursor changes?

    - by Mathias Lykkegaard Lorenzen
    Cursor lag issue Introduction I'm experiencing a newly arrived problem lately that frustrates me a lot. The computer I bought is a Clevo 150ERM. Two of my friends bought the same machine, and are experiencing the same issue. The computer came with Windows 7. There, I had no issues. Then, when we all switched to Windows 8, they had the mouse problem and I didn't. That is until after 4 or 5 months when I decided to install the RTM driver of my Intel graphics chip, and the latest Nvidia driver. I also installed the latest version of Skype that just released (Skype 6 and Skype for Metro). This basically leads me to conclude that the issue is not hardware-prone, and is not based on the operating system itself, rather the drivers or components that follow with it. Description of the issue The issue itself (lag with the mouse) happens whenever the cursor icon changes. For instance, if I keep hovering from and to a textfield (and the cursor changes into a caret and then back to a mouse), it stops for 200 milliseconds while it changes the icon. An example is if I follow the mouse in the pattern shown by the arrows below. When crossing the window border, the cursor changes into a "resize window" cursor for a short while, making the cursor lag. This doesn't sound like much, but it happens every time the cursor changes (even if it's to just move the mouse somewhere else, and accidentally make it cross a window border from where the resize cursor shows etc). What do you suggest I try?

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  • Finding the distance between 2 points in Android using Cursor and the distanceTo() method

    - by LordSnoutimus
    Hello, I am trying to calculate the distance between the first GPS point stored in a SQLite database and the last GPs point stored. My code so far is this: private double Distance() { SQLiteDatabase db1 = waypoints.getWritableDatabase(); Cursor cursor = db1.query(TABLE_NAME, FROM, null, null, null, null,ORDER_BY); Cursor cursor1 = db1.query(TABLE_NAME, FROM, null, null, null, null,ORDER_BY); Double lat = cursor.getDouble(2); Double lon = cursor.getDouble(1); cursor.moveToFirst(); cursor.moveToLast(); cursor.close(); distance = cursor.distanceTo(cursor1); } I realise I need to return a value but the error I am receiving is for the distanceTo method "The method distanceTo(Cursor) is undefined for the type Cursor" Thanks.

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  • 12.04 Black screen with blinking cursor

    - by Junaid
    I have read this post My computer boots to a black screen, what options do I have to fix it? UBUNTU 12.04 works well with livecd but fails to start after complete installation, black screen with a blinking cursor. I tried holding shift key and edit grub options but holding shift did not do anything. I give up, any suggestion. I have built in intel graphics card and an nvidia card in PCI. I have tried by removing nvidia card as well. All I see is a black screen with a blinking cursor. My system is Dell optiplex GX260 with 1GB ram and 2.4 GHz P4 processor

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  • Invisible mouse cursor

    - by Rob
    There have been some similar posts but nothing specific to me. Sometimes i boot my laptop and all is well. Other times I boot up and after the login screen my mouse cursor disappears, I can still use it, its just invisible. I start up fire fox and the cursor is visible but only on the application window.... My sysetem is: samsung R60 Plus, with 4gb ram and a T7500, using the ati Xpress 1250 graphics. This is with Ubuntu 11.10. Does any one know of a work around? Many thanks Rob,

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  • How can I change my cursor behavior?

    - by Doug Clement
    When I am typing, my mouse cursor, if left on the text, will eventually auto-click in whatever space in the the text box I happen to be, causing me to type in the middle of a sentence. Also, the cursor in the text box will frequently stop mid-word and the screen will scroll down all of a sudden when pressing the space bar while typing. My question is, how do I change this behavior because it is driving me absolutely bat crap crazy. I have an Acer Aspire One D257 Netbook. I am not sure if it's a Xubuntu problem because it does this while I am using Windows 7 too. Any help would be nice, thanks!

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  • Opening cursor files in a graphics editor?

    - by sdaau
    I'm looking at /usr/share/icons/DMZ-White/cursors, and there is: $ tree -s /usr/share/icons/DMZ-White/ /usr/share/icons/DMZ-White/ +-- [ 4096] cursors ¦   +-- [ 14] 00008160000006810000408080010102 -> v_double_arrow ... ¦   +-- [ 5] 9d800788f1b08800ae810202380a0822 -> hand2 ¦   +-- [ 8] arrow -> left_ptr ¦   +-- [ 15776] bd_double_arrow ¦   +-- [ 15776] bottom_left_corner ¦   +-- [ 15776] bottom_right_corner ¦   +-- [ 15776] bottom_side ... ... a bunch of files without extension, that GIMP cannot open. Is there an editor where these files can be opened - or at least a converter to something like .png? I can note that ImageMagick display also failed to open these files... Found also Gursor Maker - Cursor Editor for X11/GTK+; got the CVS code from SourceForge - it still uses Numeric (the old name of numpy), so to run it, you'll have to do: #from Numeric import * from numpy import * ... in xcurio.py, curxp.py, gimp.py, colorfunc.py - and comment the #from xml.dom.ext.reader import Sax2 in lsproj.py. With that, I got it running 11.04: ... but cannot get any files to open? So I thought I should grep for paths, nothing much came up - and when I looked into cursordefs.py, I simply had to paste this: CURSOR_ICON = gtk.gdk.pixbuf_new_from_xpm_data([ "10 16 3 1", " c None", ". c #000000", "+ c #FFFFFF", ".. ", ".+. ", ".++. ", ".+++. ", ".++++. ", ".+++++. ", ".++++++. ", ".+++++++. ", ".++++++++.", ".+++++....", ".++.++. ", ".+. .++. ", ".. .++. ", " .++. ", " .++. ", " .. "]) Heh :) In any case, doesn't look like it will be much usable on newer Ubuntus, unfortunately... Just tested XMC plugin as well - on 11.04, has to be built from source (from the link in the accepted answer); the requirements on my system resolved to: sudo apt-get install libgimp2.0-dev libglib2.0-0-dbg libglib2.0-0-refdbg libglib2.0-cil-dev libgtk2.0-0-dbg libgtk2.0-cil-dev ... after that, the configure/make procedure in the INSTALL file works. Note that this plugin is a bit "sneaky": ... that is, you should use "All files" (as there are no extensions); cursor previews at first will not be rendered. Then open one cursor file; after it has been opened, then there is a preview in the File/Open dialog; but other than that, it works fine...

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  • Kepler orbit : get position on the orbit over time

    - by Artefact2
    I'm developing a space-simulation related game, and I am having some trouble implementing the movement of binary stars, like this: The two stars orbit their centroid, and their trajectories are ellipses. I basically know how to determine the angular velocity at any position, but not the angular velocity over time. So, for a given angle, I can very easily compute the stars position (cf. http://en.wikipedia.org/wiki/Orbit_equation). I'd want to get the stars position over time. The parametric equations of the ellipse works but doesn't give the correct speed : { X(t) = a×cos(t) ; Y(t) = b×sin(t) }. Is it possible, and how can it be done?

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