com.goldencode.p2j.ui.client.format

Class BoolFormat.BoolBuf

java.lang.Object

com.goldencode.p2j.ui.client.format.DisplayFormat.Presentation

com.goldencode.p2j.ui.client.format.BoolFormat.BoolBuf

Enclosing class:

BoolFormat

private class BoolFormat.BoolBuf
extends DisplayFormat.Presentation

Internal form of logical data.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) java.lang.StringBuffer	bufChars Presentation chars.

Fields inherited from class com.goldencode.p2j.ui.client.format.DisplayFormat.Presentation

forFieldValue, presCursorPos, presInsertMode

Constructor Summary

Constructors

Constructor and Description
BoolBuf() Constructs clear presentation.
BoolBuf(logical varLogical) Constructs presentation initialized with given logical variable.

Method Summary

Modifier and Type	Method and Description
void	checkFormat() No action.
void	clear() Delete the screen value.
boolean	deleteBack() Erases one symbol before the cursor position.
boolean	deleteCurrent() Erases one symbol in the cursor position.
boolean	finishEdit() Indicates completion of an edit.
private java.lang.String	guessBool(char distinct) Strings for boolean values may have the same beginning.
boolean	input(char ch) Inputs character.
boolean	isFixedFont() Determine if this format must use the DEFAULT-FIXED-FONT, if no font is specified.
boolean	isUnknown() Returns if the presentation currently represents the unknown value.
boolean	moveCursorBegin() Moves cursor to the beginning of the field.
boolean	moveCursorEnd() Moves cursor to the end of the field.
boolean	moveCursorLeft() Moves cursor one character to the left.
boolean	moveCursorRight() Moves cursor one character to the right.
java.lang.String	toScreenValue() Formats the data as a string that is ready for display.
void	toVar(BaseDataType var) Instantiates a variable that is equivalent to the presentation's internal representation.

Methods inherited from class com.goldencode.p2j.ui.client.format.DisplayFormat.Presentation

activate, deleteRegion, forFieldValue, getCursorPos, getInitialCursorPos, getInsertMode, getLastPos, isFixedNumeric, isLastCharEntered, isNegative, isOptionalLeftSign, setCursorPos, setInsertMode, setLastCharEntered, toScreenValue, validateFormat

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

bufChars

java.lang.StringBuffer bufChars

Presentation chars. The same as screen value. This member may be null which means UNKNOWN value. Unfortunately logical editor may contain incomplete content so it is not possible to keep only logical value.

Constructor Detail

BoolBuf

public BoolBuf()

Constructs clear presentation. This is FALSE value.

BoolBuf

public BoolBuf(logical varLogical)

Constructs presentation initialized with given logical variable.

Parameters:

varLogical - Initial value.

Method Detail

clear

public void clear()

Delete the screen value.

Specified by:

clear in class DisplayFormat.Presentation

isFixedFont

public boolean isFixedFont()

Determine if this format must use the DEFAULT-FIXED-FONT, if no font is specified.

Specified by:

isFixedFont in class DisplayFormat.Presentation

Returns:

Always false.

checkFormat

public void checkFormat()

No action. Presentation is maintained to always be correct.

Specified by:

checkFormat in class DisplayFormat.Presentation

isUnknown

public boolean isUnknown()

Returns if the presentation currently represents the unknown value. If any editing has occurred, then this will return false even if the editing is not complete.

Specified by:

isUnknown in class DisplayFormat.Presentation

Returns:

true if this is unknown.

deleteBack

public boolean deleteBack()

Erases one symbol before the cursor position.

Specified by:

deleteBack in class DisplayFormat.Presentation

Returns:

true if input is accepted (nevertheless it may be silently ignored in reality).

deleteCurrent

public boolean deleteCurrent()

Erases one symbol in the cursor position.

Specified by:

deleteCurrent in class DisplayFormat.Presentation

Returns:

true if input is accepted (nevertheless it may be silently ignored in reality).

input

public boolean input(char ch)

Inputs character. The result depends from the current insert mode.

Specified by:

input in class DisplayFormat.Presentation

Parameters:

ch - Input character

Returns:

true if input is accepted (nevertheless it may be silently ignored in reality).

moveCursorLeft

public boolean moveCursorLeft()

Moves cursor one character to the left.

Specified by:

moveCursorLeft in class DisplayFormat.Presentation

Returns:

true if input is accepted (nevertheless it may be silently ignored in reality).

moveCursorRight

public boolean moveCursorRight()

Moves cursor one character to the right. Also updates insert mode.

Specified by:

moveCursorRight in class DisplayFormat.Presentation

Returns:

true if input is accepted (nevertheless it may be silently ignored in reality).

moveCursorBegin

public boolean moveCursorBegin()

Moves cursor to the beginning of the field.

Specified by:

moveCursorBegin in class DisplayFormat.Presentation

Returns:

true if input is accepted (nevertheless it may be silently ignored in reality).

moveCursorEnd

public boolean moveCursorEnd()

Moves cursor to the end of the field.

Specified by:

moveCursorEnd in class DisplayFormat.Presentation

Returns:

true if input is accepted (nevertheless it may be silently ignored in reality).

finishEdit

public boolean finishEdit()

Indicates completion of an edit. The presentation instance may fill some unfilled places.

Specified by:

finishEdit in class DisplayFormat.Presentation

Returns:

Always false.

toScreenValue

public java.lang.String toScreenValue()

Formats the data as a string that is ready for display.

Specified by:

toScreenValue in class DisplayFormat.Presentation

Returns:

The formatted string.

toVar

public void toVar(BaseDataType var)

Instantiates a variable that is equivalent to the presentation's internal representation.

Specified by:

toVar in class DisplayFormat.Presentation

Parameters:

var - A variable which must be compatible with the format.

guessBool

private java.lang.String guessBool(char distinct)

Strings for boolean values may have the same beginning. This method resolves a boolean value based on the next char after this common providing a form of automatic completion.

Parameters:

distinct - The first char after the common part.

Returns:

The matched text or null.