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  • For Programmers familiar with ACM API? Drawing Initials [closed]

    - by user71992
    Possible Duplicate: For Programmers familiar with ACM API? Drawing Initials I came across an exercise (in the book "The Art and Science of Java" by Eric Roberts) that requires using only GArc and GLine classes to create a lettering library which draws your initials on the canvas. This should be made independent of the GLabel class. I'd like to know the correct approach to use in solving this problem. I'm not sure what I have so far is good enough (I'm thinking it's too long). The questions requires that I use a good Top-Down approach. Here's my code so far: //Passes letters to GLetter objects and draws them on the canvas package artScienceJavaExercises.chapter8; import acm.program.*; //import acm.graphics.*; public class DrawInitials extends GraphicsProgram{ public void init(){ resize(400,400); } public void run(){ //String let = readLine("Letter?: "); letter = new GLetter("l"); add(letter, (getWidth()-letter.getWidth()*2)/2, (getHeight()-letter.getHeight())/2); add(new GLetter("o"), (letter.getX()+letter.getWidth()), letter.getY()); } private GLetter letter; } //GLetter Class package artScienceJavaExercises.chapter8; import acm.graphics.*; import java.awt.*; public class GLetter extends GCompound{ private static final int ONE_THIRD = 30; private static final int ROW_2_HEIGHT = 40; private GArc[] arc = new GArc[4]; private GLine[] line = new GLine[24]; public GLetter(String s){ line[0] = new GLine(0,0, ONE_THIRD, 0); line[1] = new GLine(ONE_THIRD,0, ONE_THIRD*2, 0); line[2] = new GLine(ONE_THIRD*2,0, ONE_THIRD*3, 0); line[3] = new GLine(0,0, 0,ONE_THIRD); line[4] = new GLine(ONE_THIRD,0, ONE_THIRD, ONE_THIRD); line[5] = new GLine(ONE_THIRD*2,0, ONE_THIRD*2, ONE_THIRD); line[6] = new GLine(ONE_THIRD*3,0, ONE_THIRD*3, ONE_THIRD); line[7] = new GLine(0,ONE_THIRD, ONE_THIRD*2, ONE_THIRD); line[8] = new GLine(ONE_THIRD,ONE_THIRD, ONE_THIRD*2, ONE_THIRD); line[9] = new GLine(ONE_THIRD*2,ONE_THIRD, ONE_THIRD*3, ONE_THIRD); line[10] = new GLine(0,ONE_THIRD, 0, ONE_THIRD+ROW_2_HEIGHT); line[11] = new GLine(ONE_THIRD, ONE_THIRD, ONE_THIRD, ONE_THIRD+ROW_2_HEIGHT); line[12] = new GLine(ONE_THIRD*2,ONE_THIRD, ONE_THIRD*2, ONE_THIRD+ROW_2_HEIGHT); line[13] = new GLine(ONE_THIRD*3,ONE_THIRD, ONE_THIRD*3, ONE_THIRD+ROW_2_HEIGHT); line[14] = new GLine(0, ONE_THIRD+ROW_2_HEIGHT, ONE_THIRD, ONE_THIRD+ROW_2_HEIGHT); line[15] = new GLine(ONE_THIRD, ONE_THIRD+ROW_2_HEIGHT, ONE_THIRD*2, ONE_THIRD+ROW_2_HEIGHT); line[16] = new GLine(ONE_THIRD*2, ONE_THIRD+ROW_2_HEIGHT, ONE_THIRD*3, ONE_THIRD+ROW_2_HEIGHT); line[17] = new GLine(0, ONE_THIRD+ROW_2_HEIGHT, 0, ONE_THIRD*2+ROW_2_HEIGHT); line[18] = new GLine(ONE_THIRD, ONE_THIRD+ROW_2_HEIGHT, ONE_THIRD, ONE_THIRD*2+ROW_2_HEIGHT); line[19] = new GLine(ONE_THIRD*2, ONE_THIRD+ROW_2_HEIGHT, ONE_THIRD*2, ONE_THIRD*2+ROW_2_HEIGHT); line[20] = new GLine(ONE_THIRD*3, ONE_THIRD+ROW_2_HEIGHT, ONE_THIRD*3, ONE_THIRD*2+ROW_2_HEIGHT); line[21] = new GLine(0,ONE_THIRD*2+ROW_2_HEIGHT, ONE_THIRD, ONE_THIRD*2+ROW_2_HEIGHT); line[22] = new GLine(ONE_THIRD, ONE_THIRD*2+ROW_2_HEIGHT, ONE_THIRD*2, ONE_THIRD*2+ROW_2_HEIGHT); line[23] = new GLine(ONE_THIRD*2,ONE_THIRD*2+ROW_2_HEIGHT, ONE_THIRD*3, ONE_THIRD*2+ROW_2_HEIGHT); for(int i = 0; i<line.length; i++){ add(line[i]); line[i].setColor(Color.BLACK); line[i].setVisible(false); } arc[0] = new GArc(getWidth(), getHeight(), 106.699, 49.341); arc[1] = new GArc(getWidth(), getHeight(), 23.96, 49.341); arc[2] = new GArc(getWidth(), getHeight(), -23.96, -49.341); arc[3] = new GArc(0,0,getWidth(), getHeight(), -106.699, -49.341); for(int i = 0; i<arc.length; i++){ add(arc[i],0,0); arc[i].setColor(Color.BLACK); arc[i].setVisible(false); } paintLetter(s); } private void paintLetter(String s){ if (s.equalsIgnoreCase("l")){ turnOn(line[3]); turnOn(line[10]); turnOn(line[17]); turnOn(line[21]); turnOn(line[22]); turnOn(line[23]); } else if(s.equalsIgnoreCase("o")){ for(int i = 0; i<4; ++i){ turnOn(arc[i]); } turnOn(line[1]); turnOn(line[10]); turnOn(line[13]); turnOn(line[22]); } } private void turnOn(GObject g){ g.setVisible(true); } } I created a class (GLetter.java) with arrays for GArc and GLine objects. They are positioned in certain ways thereby turning certain Glines and/or GArcs on or off (changing visiblity) would create a pattern for a letter. This Gletter uses the if/else statements to determine which pattern to create - this makes me feel my code is too long. There is another class (DrawInitials.java) that simulates a GraphicsProgram and allows the user to pass certain letters as arguments to the GLetter object. I've used 'L' and 'O' as examples. However, I posted this because I'm not sure I'm using the right approach. That's why I need your help. I feel MY CODE IS TOO LONG! The code above is not the complete project...it only draws letters 'L' and 'O' for now.

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  • HOw make new copied file always 777 permission

    - by Master
    I have one Linux ext3 partition shared on network. Now when some one copy files from MAc , then other people can't change the file dute to permission problem. Is there any way that ane new file which is copied will always have 777 permission and some specific user as owner of file not the default user thanks

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  • new items on GRUB screen in ubuntu/linux

    - by artsince
    I regularly update my ubuntu (10.04), and new minor versions keep accumulating on the GRUB screen. Right now I have 5 different versions listed on the GRUB, even though I always select the latest version to work with. Am I supposed to do anything to get rid of the old version references? Do these old versions affect disk space/performance?

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  • Gmail push new mail notifications to Linux?

    - by David Wolever
    Is there any way to coax Gmail into pushing new-mail notifications into my Linux machine, without using a full-on graphical mail client like Thunderbird? edit: Thanks for all the responses, but (unless I'm mistaken) these applications all poll, none of them receive notifications pushed from GMail. Also, I'd prefer a console-based program, as this will be running on a headless server.

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  • Will Windows fail activation on a new hard drive after previous hard drive failed

    - by ServerBloke
    I have a failing hard drive which won't boot, that has Windows 7 Home Premium installed. I have a replacement hard drive on the way. My question is will I run into problems trying to install Windows 7 using the same cdkey and DVD on the new hard drive? I assume activation will find that the cdkey has already been activated and fail, especially if a hardware ID is checked which will probably be different because even though the other hardware is the same, the hard drive will be different.

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  • New IP address with TSOCKS

    - by Matthew Downey
    I am using tsocks on my Ubuntu machine and I have it all set up so that if I run wget -q -O - checkip.dyndns.org|sed -e 's/.*Current IP Address: //' -e 's/<.*$//' in my normal shell I get my real IP address, and if I run tsocks wget -q -O - checkip.dyndns.org|sed -e 's/.*Current IP Address: //' -e 's/<.*$//' I get another IP address like I should. My question is how do I make the tsocks command return with a different 'different address'; in other words establish a new identity.

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  • Get Email Notification of new items on one or more RSS feeds

    - by Decker
    I'm looking for a program or website that will allow me to monitor RSS feeds and send email alerts when new material is posted. Can anyone advise me. I found http://www.feedmailer.net/ -- which looks like what I need, but the alerts come only once a day. I need something that checks much more frequently -- say every 10 minutes.

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  • Call out to script to stop with attribute in wWWHomePage

    - by Steven Maxon
    I'm getting an error when I try and call out the script to stop in line 8 'Bind to the user object using the current user Set objSysInfo = CreateObject("ADSystemInfo") strUserDN = objSysInfo.UserName Set objUser = GetObject("LDAP://" & strUserDN) strwWWHomePage = objItem.Get("wWWHomePage") If wWWHomePage < 6 Then wscript.quit Else Set ppt = CreateObject("PowerPoint.Application") ppt.Visible = True ppt.Presentations.Open "\abngan01\tracking\ppt.pptx" End If

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  • My new Intel X25-M G2 and the alignment thingy

    - by Oli
    I just bought a new SSD for my laptop, which is going to be a server running ArchLinux with grub2, GPT and btrfs. My layout should look like this: (grub-partition?) /boot ext2 75MB / btrfs 15GB /home btrfs remaining What do I need to do to create these partitions in a correctly aligned fashion using parted? Do I need to consider alignment when formatting each partition with the desired file system?

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  • New PC, Keyboard and OS and I can't do a Screen Image Capture

    - by Chadworthington
    I just got a new PC, Windows 7 Ultimate with a: fancy MS keyboard. I am puzzled why ALT+PRTSCN keyboard combo seems to put nothing on my keyboard. No lights are on the keybd (SCROLL LOCK, SHIFT, etc)-yet, when I paste into Word Pad or Paint or some program that should be able to hande images, no image is on the clipboard. Any idea what to try? This is embarrassing...

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  • How to make new copied file always 777 permission

    - by Master
    I have one Linux ext3 partition shared on network. Now when some one copy files from MAc , then other people can't change the file dute to permission problem. Is there any way that ane new file which is copied will always have 777 permission and some specific user as owner of file not the default user thanks

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  • Add new attachment actions in thunderbird

    - by asdf
    Hi, is it possible in thunderbird 3 to add new action for different types of attachments? For instance, I receive a file with extension .xyz and I want to specify which program I need to use to open this file when I clicjh on the attachment thanks PD: I am jusing thunderbird 3 on mac os x

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  • New computer crashing

    - by Alister
    I've just built a new computer and it crashes occasionally - it just switches off and then restarts and I'm not sure about the best way to diagnose the problem. All the components are seated nicely and nothing seems to be overheating, the bios is set to fail-safe. What tools could I use to track down any possible issues? I've run memtest86+ with no problems. It's running Win7 Ultimate.

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  • adding a name to existing LN group distribution and new individuals do not receive email

    - by jocelyn suba
    I made a recent edit to an existing group distribution to add a person. I've saved it. I see it in the detail of the group listing but plugging it into an email, the naming convention pops up, but not all people on the distribution actually receive the email. I tried deleting and re-adding the new person. I tried closing out then open up tto the detail, and all names show. How do i solve for this?

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