Examples of com.ibm.richtext.textformat.MFormatter.updateFormat()

com.ibm.richtext.textformat.MFormatter.updateFormat()

Reformat text after a change. After the formatter's text changes, call this method to reformat. Does not redraw. @param afStart the offset into the text where modification began; ie, thefirst character in the text which is "different" in some way. Does not have to be nonnegative. @param afLength the number of new or changed characters in the text. Should neverbe less than 0. @param viewRect the Rectangle in which the text will be displayed. This is needed forreturning the "damaged" area - the area of the screen in which the text must be redrawn. @param origin the top-left corner of the text, in the display's coordinate system @return a Rectangle which specifies the area in which text must beredrawn to reflect the change to the text.

        MFormatter formatter = makeFormatter(text, 100, true);
        Rectangle viewRect = new Rectangle(0, 0, 100, Integer.MAX_VALUE);


        formatter.stopBackgroundFormatting();
        text.append(new StyledText("\n", PLAIN));
        formatter.updateFormat(text.length()-1, 1, viewRect, ORIGIN);


        _testLineAccess(formatter, 6);


        formatter.stopBackgroundFormatting();
        text.append(new StyledText("ad", PLAIN));


        _testLineAccess(formatter, 6);


        formatter.stopBackgroundFormatting();
        text.append(new StyledText("ad", PLAIN));
        formatter.updateFormat(text.length()-2, 2, viewRect, ORIGIN);
        _testLineAccess(formatter, 6);
        _testLineExceptions(formatter, 6);


        formatter.stopBackgroundFormatting();
        text.remove(0, 1);

        _testLineAccess(formatter, 6);
        _testLineExceptions(formatter, 6);


        formatter.stopBackgroundFormatting();
        text.remove(0, 1);
        formatter.updateFormat(0, 0, viewRect, ORIGIN);
        _testLineAccess(formatter, 6);
        _testLineExceptions(formatter, 6);
    }

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