All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class utils.TxtGrph

java.lang.Object
   |
   +----utils.TxtGrph

public class TxtGrph

extends Object

TxtGrph()

affirmative(String)

Prompts for a 'Y' or 'N' response from the user

beep()

Beeps the speaker

down(int)

Move cursor down n rows, but not below row 23 Row 24 is reserved for prompts This procedure cannot scroll the screen

eraseAll()

Erase entire screen.

eraseBlock(int, int, int, int)

Erase block of characters on the screen

eraseChars(int)

Erase numchar characters starting at the cursor Does not test for writing past right mrgin.

eraseDown()

Erase from cursor to bottom of the screen

eraseLeft()

Erase from start of line to cursor

erasePrompt()

Clears prompt line

eraseRight()

Erase from cursor to end of the line

eraseUp()

Erase from top of screen to cursor.

getArrows()

Waits for an arrow key to be pressed.

home()

move the cursor to the top lefthand corner of screen.

homeAndClear()

Clear screen then place cursor in upper left corner.

horizLine(int)

Draw horizontal line across from current cursor position

left(int)

Move cursor n columns to left, but not beyond column 0 This command will not move the cursor to a different row

main(String[])

position(int, int)

Position cursor at specified row and column

prompt(String)

Write a message on the prompt line

restoreCursor()

Restore most recently saved cursor position

right(int)

Move cursor n columns to right; This command will not move the cursor to a different row

saveCursor()

Store cursor position, overwriting any previously saved positions

setBold()

Put into bold type (extra bright)

setNormal()

Restore to normal video The following function sets the local display so that all characters displayed after this function was called, would display using the default attributes, white-on-black, non-blinking.

setReverse()

Put into reverse video, dark characters on light background.

setUnderline()

sleep(double)

Pauses the machine for n seconds.

up(int)

Move cursor up n rows, but not above row 0 This procedure cannot scroll the screen

vertLine(int)

Draw vertical line down, from current cursor position cursor ends up below last segment of line

 public TxtGrph()

 public static void position(int row,
                             int column)

Position cursor at specified row and column

 public static void up(int n)

Move cursor up n rows, but not above row 0 This procedure cannot scroll the screen

 public static void down(int n)

Move cursor down n rows, but not below row 23 Row 24 is reserved for prompts This procedure cannot scroll the screen

 public static void right(int n)

Move cursor n columns to right; This command will not move the cursor to a different row

 public static void left(int n)

Move cursor n columns to left, but not beyond column 0 This command will not move the cursor to a different row

 public static void home()

move the cursor to the top lefthand corner of screen.

 public static void saveCursor()

Store cursor position, overwriting any previously saved positions

 public static void restoreCursor()

Restore most recently saved cursor position

 public static void setNormal()

Restore to normal video The following function sets the local display so that all characters displayed after this function was called, would display using the default attributes, white-on-black, non-blinking. It has no effect if the default mode is already selected. The characters already on the screen are not changed. These attribute settings affect only the specified positions on the screen. They may be set either before or after characters are written there. Any combination of bold, underline, and reverse is possible

 public static void setBold()

Put into bold type (extra bright)

 public static void setUnderline()

 public static void setReverse()

Put into reverse video, dark characters on light background.

 public static void eraseBlock(int top,
                               int left,
                               int bottom,
                               int right)

Erase block of characters on the screen

 public static void eraseChars(int numchar)

Erase numchar characters starting at the cursor Does not test for writing past right mrgin.

 public static void eraseRight()

Erase from cursor to end of the line

 public static void eraseLeft()

Erase from start of line to cursor

 public static void eraseDown()

Erase from cursor to bottom of the screen

 public static void eraseUp()

Erase from top of screen to cursor.

 public static void eraseAll()

Erase entire screen.

 public static void homeAndClear()

Clear screen then place cursor in upper left corner.

 public static void prompt(String message)

Write a message on the prompt line

 public static void erasePrompt()

Clears prompt line

 public static void sleep(double n)

Pauses the machine for n seconds.

 public static boolean affirmative(String message)

Prompts for a 'Y' or 'N' response from the user

 public static void beep()

Beeps the speaker

 public static int getArrows()

Waits for an arrow key to be pressed. Codes are: arrows (codes 1-4), 'Q' (code 0), RETURN key (code -1) NOTE: CODES ARE ALWAYS 0 IF ARROW KEY NOT PRESSED (C++ vn. bug) See C++ code version in comment following

 public static void horizLine(int length)

Draw horizontal line across from current cursor position

 public static void vertLine(int Height)

Draw vertical line down, from current cursor position cursor ends up below last segment of line

 public static void main(String args[])

All Packages  Class Hierarchy  This Package  Previous  Next  Index