Examples of MConstText

com.ibm.richtext.styledtext.MConstText

MConstText is a base class for text with multiple character and paragraph styles. The text is a sequence of Unicode characters, represented by char. Character and paragraph styles are represented by the AttributeMap class.

Characters in the text are accessed with an integer index using the at method. Valid indices are between 0 and (length-1), where length is the number of characters in the text. Additionally, the characters in the text may be accessed through a java.text.CharacterIterator.

Every character in the text has a character style associated with it, represented by the AttributeMap class. The character style for a particular character can be obtained using the characterStyleAt method.

Each character in the text is contained in a paragraph. A paragraph is a range of text including and terminated by a paragraph separator (either \n or U+2029). Every paragraph has a paragraph style associated with it, represented by the AttributeMap class. Paragraph boundaries and styles can be obtained from the MConstText.

This class does not have methods for modifying the text or styles. However, subclasses may add this capability, so it is not safe to assume that an MConstText instance is immutable. In particular, the MText class adds modification protocol to this class. Clients can detect whether an MConstText has changed by keeping track of its timestamp.

A DataFlavor for clipboard content is defined in this class. Using this DataFlavor insures that all clients will recognize MConstText content on the clipboard. @see MText @see AttributeMap @see java.text.CharacterIterator @see java.awt.datatransfer.DataFlavor

                            CharacterIterator textIter,
                            MTextPanel panel) {
        
        fColorer.set(textIter, start, limit);


        MConstText oldText = panel.getText();
        MText newText = null;
        
        while (fColorer.next()) {


            int rangeStart = fColorer.currentStart();
            int rangeLimit = fColorer.currentLimit();
            
            AttributeMap style = fColorer.currentStyle();
            
            if (oldText.characterStyleLimit(rangeStart) < rangeLimit ||
                    oldText.characterStyleAt(rangeStart) != style) {
            
                int cstart = rangeStart-start;
                int climit = rangeLimit-start;
                if (newText == null) {
                    newText = new StyledText(oldText, start, limit);

        }
        else {
            fOKButton.setEnabled(false);
            
            int selLimit = fTextPanel.getSelectionEnd();
            MConstText text = fTextPanel.getText();
            for (int runStart = fTextPanel.getSelectionStart(); runStart <= selLimit;
                    runStart = fCharacter? text.characterStyleLimit(runStart) : 
                                           text.paragraphLimit(runStart)) {
            
                Object runVal;
                if (fCharacter) {
                    runVal = text.characterStyleAt(runStart).get(fKey);
                }
                else {
                    runVal = text.paragraphStyleAt(runStart).get(fKey);
                }
                if (runVal == null) {
                    runVal = fTextPanel.getDefaultValues().get(fKey);
                }
                
                selectValue(runVal, values);
                if (runStart == text.length()) {
                    break;
                }
            }
        }

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Examples of MConstText

Examples of com.ibm.richtext.styledtext.MConstText

Examples of com.ibm.richtext.styledtext.MConstText