Package org.luwrain.controls

Interface MultilineEdit.Model

All Superinterfaces:

Lines

All Known Subinterfaces:

MultilineEditCorrector

All Known Implementing Classes:

EditCorrectorHooks, EditCorrectors.IndentationCorrector, EditCorrectors.WordWrapCorrector, EditUtils.ActiveCorrector, EditUtils.CorrectorChangeListener, EditUtils.EmptyCorrector, MultilineEditTranslator

Enclosing class:

MultilineEdit

public static interface MultilineEdit.Model
extends Lines

The model for MultilineEdit. It is supposed that this interface is a front-end for MutableLines in conjunction with HotPointControl, but you may use it freely as it is necessary for a particular purpose. See MultilineEditTranslator for a default implementation.

MultilineEdit guarantees that each user action results exactly in a single call of some method of this interface. This allows substitution of any method, which makes changes in the model, by any number of other methods in any order, and this will keep all structures consistent.

If some operation is addressed at the position outside of the stored text, the result may be undefined. The implementation of this interface should not issue any speech output.

See Also:

MultilineEditTranslator

Method Summary

Modifier and Type	Method	Description
MultilineEdit.ModificationResult	deleteChar(int pos, int lineIndex)
MultilineEdit.ModificationResult	deleteRegion(int fromX, int fromY, int toX, int toY)
int	getHotPointX()
int	getHotPointY()
String	getTabSeq()
MultilineEdit.ModificationResult	insertRegion(int x, int y, String[] lines)
MultilineEdit.ModificationResult	mergeLines(int firstLineIndex)
MultilineEdit.ModificationResult	putChars(int pos, int lineIndex, String chars)	Puts one or several characters at some position.
MultilineEdit.ModificationResult	splitLine(int pos, int lineIndex)	Splits the specified line at the specified position.

Methods inherited from interface org.luwrain.core.Lines

getLine, getLineCount

Method Detail

getHotPointX

int getHotPointX()

getHotPointY

int getHotPointY()

getTabSeq

String getTabSeq()

deleteChar

MultilineEdit.ModificationResult deleteChar(int pos,
                                            int lineIndex)

deleteRegion

MultilineEdit.ModificationResult deleteRegion(int fromX,
                                              int fromY,
                                              int toX,
                                              int toY)

insertRegion

MultilineEdit.ModificationResult insertRegion(int x,
                                              int y,
                                              String[] lines)

putChars

MultilineEdit.ModificationResult putChars(int pos,
                                          int lineIndex,
                                          String chars)

Puts one or several characters at some position. The position expects to be valid in the content of the model, except of the case when there are no lines at all, lineIndex equals to zero and pos equals to zero. In this case the method must insert one empty line prior to making any required changes.

After performing the operation, the method must prepare the MultilineEdit.ModificationResult object. If the chars arguments has the length greater than one, the string argument of the result must be set to the value of chars argument.

If chars argument has the length equals to one, this single character must be returned as the character argument of the result. If the method is requested to insert a single spacing character, the string argument of the result must contain the last word prior to the inserting position. If there is no any word prior to the inserting position, the result may have the string argument empty.

Parameters:

pos - The position on the line to put characters at

lineIndex - The index of the line to put characters on

chars - The characters to put

Returns:

The MultilineEdit.ModificationResult object with the flag if the operation was performed and other corresponding information

mergeLines

MultilineEdit.ModificationResult mergeLines(int firstLineIndex)

splitLine

MultilineEdit.ModificationResult splitLine(int pos,
                                           int lineIndex)

Splits the specified line at the specified position. This method removes on the line all the content after the specified position and puts the deleted fragment on new line which is inserted just after modified. If the position is given outside of the stored text, the behaviour of this method is undefined.

Parameters:

pos - The 0-based position to split line at

lineIndex - The 0-based index of the line to split

Returns:

The fragment moved onto newly inserted line