Java Code Examples for javax.swing.JList#scrollRectToVisible()

The following examples show how to use javax.swing.JList#scrollRectToVisible() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: ComboBoxAutoCompleteSupport.java From netbeans with Apache License 2.0

4 votes

private void matchSelection( DocumentEvent e ) {
    if( isIgnoreSelectionEvents( combo ) )
        return;
    try {
        setIgnoreSelectionEvents( combo, true );
        if( !combo.isDisplayable() )
            return;
        String editorText;
        try {
            editorText = e.getDocument().getText( 0, e.getDocument().getLength() );
        } catch( BadLocationException ex ) {
            //ignore
            return;
        }

        if( null != combo.getSelectedItem() && combo.getSelectedItem().toString().equals(editorText) )
            return;

        if( !combo.isPopupVisible() ) {
            combo.showPopup();
        }

        JList list = getPopupList( combo );
        if( null == list )
            return;

        int matchIndex = findMatch( combo, editorText );

        if( matchIndex >= 0 ) {
            list.setSelectedIndex( matchIndex );
            Rectangle rect = list.getCellBounds(matchIndex, matchIndex);
            if( null != rect )
                list.scrollRectToVisible( rect );
        } else {
            list.clearSelection();
            list.scrollRectToVisible( new Rectangle( 1, 1 ) );
        }
    } finally {
        setIgnoreSelectionEvents( combo, false );
    }
}

Example 2

Source File: ComboBoxAutoCompleteSupport.java From netbeans with Apache License 2.0

4 votes

private void matchSelection( DocumentEvent e ) {
    if( isIgnoreSelectionEvents( combo ) )
        return;
    try {
        setIgnoreSelectionEvents( combo, true );
        if( !combo.isDisplayable() )
            return;
        String editorText;
        try {
            editorText = e.getDocument().getText( 0, e.getDocument().getLength() );
        } catch( BadLocationException ex ) {
            //ignore
            return;
        }

        if( null != combo.getSelectedItem() && combo.getSelectedItem().toString().equals(editorText) )
            return;

        if( !combo.isPopupVisible() ) {
            combo.showPopup();
        }

        JList list = getPopupList( combo );
        if( null == list )
            return;

        int matchIndex = findMatch( combo, editorText );

        if( matchIndex >= 0 ) {
            list.setSelectedIndex( matchIndex );
            Rectangle rect = list.getCellBounds(matchIndex, matchIndex);
            if( null != rect )
                list.scrollRectToVisible( rect );
        } else {
            list.clearSelection();
            list.scrollRectToVisible( new Rectangle( 1, 1 ) );
        }
    } finally {
        setIgnoreSelectionEvents( combo, false );
    }
}