pycollapseall.java

Python Development Environment (Python IDE plugin for Eclipse). Features editor, code completion, re

/*
 * Created on Jul 22, 2004
 *
 * @author Fabio Zadrozny
 */
package org.python.pydev.editor.actions.codefolding;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.text.source.projection.ProjectionAnnotationModel;
import org.python.pydev.editor.codefolding.PyProjectionAnnotation;

/**
 * @author Fabio Zadrozny
 */
public class PyCollapseAll extends PyFoldingAction {

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
     */
    public void run(IAction action) {
		final ProjectionAnnotationModel model = getModel();
        
        if (model != null) {
            
            Iterator iter = getAnnotationsIterator(model, false);
            
            
            if(iter != null){
	            //we just want to collapse the leafs, and we are working only with the not collapsed sorted by offset.
	            
	            List elements = new ArrayList(); //used to know the context
	            while (iter.hasNext()) {
	                PyProjectionAnnotation element = (PyProjectionAnnotation) iter.next();
	                
	                //special case, we have none in our context
	                if(elements.size() == 0){
	                    elements.add(element);
	                
	                } else{
		                if(isInsideLast(element, elements, model)){
		                    elements.add(element);
		                    
		                }else{
		                    //ok, the one in the top has to be collapsed ( and this one added )
		                    PyProjectionAnnotation top = (PyProjectionAnnotation) elements.remove(elements.size()-1);
			                model.collapse(top);
		                    elements.add(element);
		                }
	                }
	            }
	            if(elements.size() > 0){
		            PyProjectionAnnotation top = (PyProjectionAnnotation) elements.remove(elements.size()-1);
		            model.collapse(top);
	            }
            }
        }
    }
}