Difference between revisions of "Project R0.1 20131- OOP344"
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|My HOME and END keys don't work on putty cio_test.o, but they all work well on visual studio when I run consoleTester.cpp. I have no idea about why they don't work on putty. When I hit HOME or END, there is nothing changed. Please help me :( ....Ran|| | |My HOME and END keys don't work on putty cio_test.o, but they all work well on visual studio when I run consoleTester.cpp. I have no idea about why they don't work on putty. When I hit HOME or END, there is nothing changed. Please help me :( ....Ran|| | ||
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==Help Needed== | ==Help Needed== |
Revision as of 02:18, 4 February 2013
OOP344 | Weekly Schedule | Student List | Teams | Project | Student Resources
Contents
Release
- 0.1
Notes
- Pull the changes of the two files bconsole.cpp and bconsole.h to version 1.02 (Feb 1, 2013) from the console directory in notes repository of your section
- Using Linux: please use putty only and set the keyboard to
- Backspace = Ctrl-?
- Home and End = Standard
- Function keys and keypad = Linux
- And then:
- Connection > Data > Terminal-type string = linux (This step must be done when first connecting through putty!)
- Or if you have already connected, type in (export TERM="linux") without brackets
- Guide for Using Borland 5.5
- Note that to change the cmd.exe window size, right click on the top bar -> Properties -> Layout Tab
Due Dates
- Tue, Feb 5th
Help
Question | Comments | ||||||||||||||
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Does ReadOnly if statement work like ESCAPE key ? (Store the string in another variable and replace it). ? And, how do you guys initialize the global variable for CIO_TABSIZE ? Do I need to specify the link in console.h file as well? (What I did was.. unsigned int CIO_TABSIZE=4 in console.cpp).: D | unsigned int CIO_TABSIZE = 4; in console.cpp and extern unsigned int CIO_TABSIZE; in console.h | ||||||||||||||
If IsTextEditor is true and the value of *strOffset is changed at any time, then terminate the edit function immediately and return 0; CAN SOMEONE explain what it means.. please : ( | It means when you move cursor to show the hidden characters or to hide shown characters(move to left or right) if IsTextEditor==True, then terminate the edit function; *strOffset is the number of characters of the left postion of string that not be displayed within the text-field. At frist, you need store the original value of *strOffset, then everytime you press key, test if *strOffset is different from the original value, if it is then exit function and return 0;--hqiao3 | ||||||||||||||
Can someone help me uderstand these two underlined requirements. Thanks a lot for your help!! -Chun Your function does not allow the cursor to move before the start of the field or past the end of the field. If the field ends at the right edge of the screen, your function does not allow the cursor to the right of that edge. |
I think this means that: if the last position of the field is at getCols(), you cannot allow the cursor position to go beyond that. Remember xMOVER? how it console.alarm()'s when you try to go past getCols()? Its basically saying that, the cursor MUST stay within the field. -fjzhou | ||||||||||||||
END - moves the cursor to the position to the right of the last character in the string, changing the offset, if necessary. If the last character is at the edge of the screen, moves the cursor to that character. | Same thing as the previous question? *curPos = getCols() ? -fjzhou Thank you, fjzhou. I wonder why I didn't use any code from XMOVER. If you are right, then we have to keep tracking the cursor position on the screen by using getPos() function and comparing with the getCols()? However, I don't think that would be a problem since we keep adjusting the strOffset if the curPosition is at the end of the field. Then the last character of the string will not be at the edge of the screen and the cursor will be. So why would we put the cursor on the last character of the string? -Chun | ||||||||||||||
Can someone tell why "TAB" key does't work on the matrix using PUTTY. I have set the keybord already........hqiao3 | |||||||||||||||
Im having problems with the initial corrections with the offset and curpos. test 4.1 - when i have to correct curpos 40 to 19, program crashes. I know it has to do with the creating a local variable instead of pointing to external. here is my code that crashes the program: http://www.noobiedev.com/oop344/oop344-release-0-1-bug/ |
Create two local variables to store *strOffset & *curPosition,the purpose of doing this is: 1. if IsTextEditor is true, test if *strOffset is changed, then teminate the program;(to do this, test everytime you press key that means test it in the loop); okay, a local variable for the offset that holds zero simply means creating a local variable int a = 0; to be pointed instead of an external variable. means curPosition = &a; (do this only when curPosition==0)
Thanks for the input. Turns out my problem had nothing to do with this. it was due to: delete [] variable being in the wrong place I saw your code, I think there might be not correct in line 9. 'maxStrLength' is not Length of *Str (len of "abc\0" is 4, but the size of str may be 10. when display the *str, the cursor will stay on the wrong position. --hqiao3 Thank you for the observation. The code was very ugly, I have rewrote it to be more efficient and neat. -fjzhou | ||||||||||||||
"git push origin master" command error message-- "Warning: Permanently added 'githup.com,192.168.400.2' (RSA) to the list of known hosts." I can't push anything to my remote githup repository. Any one any help? Thanks in advance! Gary | |||||||||||||||
My HOME and END keys don't work on putty cio_test.o, but they all work well on visual studio when I run consoleTester.cpp. I have no idea about why they don't work on putty. When I hit HOME or END, there is nothing changed. Please help me :( ....Ran | Have you setup PUTTY's keybord before you logon matrxi using putty? if not, please see 'Notes' item aboved in this page.--hqiao3
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} Help NeededBlog Posts
Learning OutcomeUpon successful completion of this first assignment, you will have demonstrated the abilities to design and code
Console Line Editing FacilityAs your first assignment, you are to upgrade the basic console input output class (BConsole) to include line-display and line-editing facilities and use of "<<" and ">>" operators for character I/O and string output. SpecificationsYour submission consists of a class called Console that is to be inherited from BConsole in a namespace called cio. Your application module is fully portable across Borland C++5.5 on windows, Linux GNU C++, Viusual C++ on Windows and Mac C++ platforms which accepts console input, and provides console output through the set of facilities available in your Console module. The name of the library object to be created is console. The header file for the original version of this module is console.h and the implementation file for the original version is console.cpp. All of the identifiers for the library module and all upgrades to the module are defined in the cio namespace (short for console input output). Your upgrade in this assignment consists of creating a class called Console, inherited from BConsole, implemented in two files; console.h and console.cpp: In addition to all public methods of BConsole, Console must have the following two public methods and overload "<<" and ">>" operators. external links
unsigned int CIO_TABSIZE = 4; then create an external link in console.h to make it available in all cio files. Use this variable when you need the tab-size. display() methodvoid display(const char* str, int row, int col, int fieldLen=0); This method outputs the C-style, null-terminated string pointed to by str starting at row row and column col of the screen in a field of fieldLen characters. Row value 0 refers to the top row, and column value 0 refers to the left-most column. If the string is longer than fieldLen, your function displays the first fieldLen characters. If the string is shorter than fieldLen, your function displays the entire string , followed by enough trailing spaces to fill out the field completely. If fieldLen is 0, your function displays the entire string with no trailing spaces. Your function positions the cursor after the last character displayed. Your function does not flush the output buffer. The results are undefined if the starting position of the string is not within the dimensions of the screen. edit() methodint edit(char *str, int row, int col, int fieldLength, int maxStrLength, bool* insertMode, int* strOffset, int* curPosition, bool IsTextEditor = false, bool ReadOnly = false); This method is to be written in two steps. Step oneIgnore the last two arguments of the edit method (IsTextEditor and ReadOnly) and write the method as follows: This method edits the C-style, null-terminated string pointed by str. The parameter row holds the row (0 is the top row) of the string on the screen. The parameter col holds the starting column (0 is the left-most column) on the screen. The parameter fieldLength holds the length of the editable field. The string may be larger than the field itself, in which case part of the string is hidden from view. The parameter maxStrLength holds the maximum length of the string, excluding the null byte. The parameter insertMode points to a bool variable that holds the current insert mode of the string. The parameter insertMode receives the address of a variable that stores the current editing mode - insert or overwrite. The parameter strOffset points to an int variable that holds the initial offset of the string within the field; that is, the index of the character in the string that initially occupies the first character position in the field. The parameter curPosition points to an int variable that holds the initial cursor position within the field; that is, the index of the character in the field at which the cursor is initially placed.
Your function does not allow the cursor to move before the start of the field or past the end of the field. If the field ends at the right edge of the screen, your function does not allow the cursor to the right of that edge. Your function uses the symbolic names for non-ASCII and special keys defined in the keys.h header file. These names are the same symbolic names as those used in the original library module. The user terminates editing by pressing ENTER, TAB, ESCAPE, UP, DOWN, PGUP, PGDN or any of the function keys F(1) through F(12) inclusive. If the user presses ESCAPE, your function aborts editing, replaces the contents of the string with the original contents upon entry into your function, and leaves the offset and cursor position values unaltered. In order to be able to revert to the original string, your function needs to allocate memory at run time. At termination, your function passes back through the same int variables the current values of the offset and the cursor position, unless no variables were pointed to upon entry into your function; that is, unless the value of either address was NULL. Your function returns an int identifying the key that the user pressed to exit the function. Your function takes no action (other than perhaps beeping) if the user tries to enter too many characters (if, for example, the string is full in insert mode, or the cursor is positioned after the last character of a full string in overstrike mode). Your function handles the non-ASCII keys as follows
edit() always displays blanks in any part of the field that is not occupied by the string. UNDER NO CIRCUMSTANCES DOES YOUR FUNCTION CHANGE ANY POSITION ON THE SCREEN OUTSIDE THE FIELD. For example, your function does not display status information (such as "INS" or "OVR") elsewhere on the screen, since such displays limit the programmer's ability to design their own screen layouts. You may assume that it is the calling program's responsibility to ensure that the string array is large enough to handle maxStrLength characters and that the starting screen position provides enough room (on the screen) for the field, etc.
Step twoFirst run your program with cio_test.cpp and make sure it passes all the tests up to and including "4.16". If all tests are passed continue with step two: IsTextEditorIf IsTextEditor is true and the value of *strOffset is changed at any time, then terminate the edit function immediately and return 0; TAB keyIf IsTextEditor is true and TAB key is hit, then instead of terminating the function, CIO_TABSIZE spaces are inserted into str. CIO_TABSIZE is to be global variable (unsigned integer initially set to be 4) to hold the number of spaces to be inserted when tab is hit. ReadOnlyIf ReadOnly is true, then edit function works exactly like before, except that any modification to the data (the content of the str string) will be ignored. Overload "<<" and ">>" operatorsoperator>>Console& operator>>(Console& cn, int& ch); Get a key from keyboard using cn and store it in ch; operator<<Console& operator<<(Console& cn, char ch); Print the character ch on the screen, where the cursor is located, using cn and return the cn reference; Console& operator<<(Console& cn, const char* str); print the string str on the screen where the cursor is using cn and return the cn reference
SubmissionCompile and test your upgrade with your test main in the following three command-line environments: Local PC: Borland 5.5 bcc32 bconsole.cpp console.cpp cio_test.cpp Local PC: Microsoft .net Local Mac: (use -lcurses to link curses library) c++ bconsole.cpp console.cpp cio_test.cpp -lcurses -Wno-write-strings matrix: GNU (use -lncurses to link ncurses library) g++ bconsole.cpp console.cpp cio_test.cpp -lncurses -Wno-write-strings For submission purposes, your solution must compile, link, and run without errors in each environment. Tester DemoTo see how tester runs, you can run on Matrix (only use putty with the setting stated at Notes) run: $ ~fardad.soleimanloo/cio_test Submission detailsThe due date for submission is: Tue, Feb 5th 23:59 First pull the changes of the two files bconsole.cpp and bconsole.h to version 1.02 (Feb 1, 2013) from the console directory in notes repository of your section. Test your program with cio_test.cpp from the same console directory stated above. When your program passed all the tests; on matrix, create a directory and copy all the source files (console.cpp, console.h, bconsole.cpp, bconsole.h) into it. Then copy cio_test.o v 0.94.1 from "~fardad.soleimanloo" and then compile your code with your professors version of cio_test (i.e cio_test.o) and run it. If all the tests are passed successfully, an email will be sent to your professor automatically with your source code (console.h and console.cpp) attached to it. to copy the cio_test.o do the following. $cp ~fardad.soleimanloo/cio_test.o . to compile the code: $g++ bconsole.cpp console.cpp cio_test.o -lncurses This should not generate any warnings. $ a.out your_student_number Your Full Name as on Student Card <ENTER> Example: $ a.out 012345678 Home Jay Simpson <ENTER> |