X web hosting - Java Swing - O Reilly Returns the width of
Java Swing - O Reilly Returns the width of the given document range of text, using the getTabbedTextWidth() method in the Utilities class. public float getTabbedSpan( float x, TabExpander e) Returns the desired span for this view, starting at the given x-coordinate, using the specified TabExpander. 23.2.9.4 Other Public Methods public View breakView(int axis, int p0, float pos, float len) Attempts to break the View at the whitespace character closest to the requested length from the given starting point. It returns a new View object (an instance of an inner class), representing a portion of this LabelView. The current LabelView is not affected. The method returns this if the given axis is not X_AXIS. Figure 23.9. Breaking a view example Figure 23.9 shows how this might work. In this example, the goal is to break the View, starting at model position 27 (the “b” in “but”), which will be at the beginning of a line (pos= 0). We want a new View that is about 182 points long. The breakView() method takes all of this into account and returns a new View containing a portion of the original view, broken on the first whitespace it finds prior to the requested endpoint. public void changedUpdate(DocumentEvent e, Shape a, ViewFactory f ) Indicates that the Document’s attributes have changed for an area of the Document for which this View is responsible. It sets a flag so that other methods will synchronize with the Document before doing things such as painting the View. public View createFragment(int p0, int p1) Returns a new View that represents a portion of the current View, bound by the specified model endpoints. When a LabelView becomes too long to fit on a single line, it is replaced by two LabelView.LabelFragments (a nonpublic inner class), as shown in Figure 23.10. Figure 23.10. LabelView split into two LabelView.LabelFragments - 768
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