source: java/main/src/main/java/com/framsticks/gui/TreeAtFrame.java @ 98

package com.framsticks.gui;

import org.apache.log4j.Logger;

import com.framsticks.core.Tree;
import com.framsticks.core.Node;
import com.framsticks.core.Path;
import com.framsticks.core.TreeOperations;
import com.framsticks.gui.controls.ValueControl;
import com.framsticks.params.CompositeParam;
import com.framsticks.params.FramsClass;

import java.util.*;

import javax.swing.tree.TreePath;


import com.framsticks.util.dispatching.FutureHandler;
import com.framsticks.util.lang.Casting;

/**
 * @author Piotr Sniegowski
 */
public class TreeAtFrame {

        private static final Logger log = Logger.getLogger(TreeAtFrame.class);

        protected final Frame frame;
        protected final Tree tree;
        protected final Map<String, Panel> knownPanels = new HashMap<String, Panel>();
        protected Node rootNode;

        protected Map<TreeNode, NodeAtFrame> nodesStorage = new WeakHashMap<>();

        public TreeAtFrame(Tree tree, Frame frame) {
                this.frame = frame;
                this.tree = tree;
        }

        public Frame getFrame() {
                return frame;
        }

        /**
         * @return the tree
         */
        public Tree getTree() {
                return tree;
        }

        public void registerPanel(Panel panel) {
        }

        public Panel findPanel(String accessId) {
                assert frame.isActive();
                return (knownPanels.containsKey(accessId) ? knownPanels.get(accessId) : null);
        }

        public final String getName() {
                return tree.getName();
        }

        public Panel preparePanel(CompositeParam param, FramsClass framsClass) {
                assert frame.isActive();
                Panel panel = preparePanelImpl(param, framsClass);
                assert panel != null;
                String accessId = param.computeAccessId();
                panel.uniqueName = accessId + "@" + tree.getName();
                knownPanels.put(accessId, panel);
                frame.cardPanel.add(panel, panel.uniqueName);
                log.debug("prepared panel for " + panel);
                return panel;
        }

        protected Panel preparePanelImpl(CompositeParam param, FramsClass framsClass) {
                assert frame.isActive();
                List<Panel> panels = new ArrayList<Panel>();

                Panel.Parameters parameters = new Panel.Parameters(this, param, framsClass);
                for (PanelProvider pp : frame.browser.panelProviders) {
                        Panel p = pp.providePanel(parameters);
                        if (p != null) {
                                panels.add(p);
                        }
                }

                if (panels.isEmpty()) {
                        return new EmptyPanel(parameters);
                }
                if (panels.size() == 1) {
                        return panels.get(0);
                }
                return new MultiPanel(parameters, panels);

        }

        public boolean hasLocalChanges(TreePath treePath) {
                NodeAtFrame nodeAtFrame = nodesStorage.get(treePath.getLastPathComponent());
                if (nodeAtFrame == null) {
                        return false;
                }
                return !nodeAtFrame.localChanges.isEmpty();
        }

        public NodeAtFrame assureLocalInfo(TreePath treePath) {
                assert frame.isActive();
                NodeAtFrame nodeAtFrame = nodesStorage.get(treePath.getLastPathComponent());

                if (nodeAtFrame == null) {
                        nodeAtFrame = new NodeAtFrame();
                        nodesStorage.put(Casting.throwCast(TreeNode.class, treePath.getLastPathComponent()), nodeAtFrame);
                }
                return nodeAtFrame;
        }

        public NodeAtFrame getLocalInfo(TreePath treePath) {
                return nodesStorage.get(treePath.getLastPathComponent());
        }

        public boolean changeValue(TreePath treePath, ValueControl component, Object newValue) {
                log.debug("changing value of " + component + " to '" + newValue + "'");

                assureLocalInfo(treePath).localChanges.put(component, newValue);

                return true;
        }

        public void pushLocalChanges(TreePath treePath) {
                assert frame.isActive();

                NodeAtFrame nodeAtFrame = nodesStorage.get(treePath.getLastPathComponent());
                if (nodeAtFrame == null) {
                        return;
                }
                Path path = frame.treeModel.convertToPath(treePath);

                for (Map.Entry<ValueControl, Object> e : nodeAtFrame.localChanges.entrySet()) {
                        TreeOperations.set(path, e.getKey().getParam(), e.getValue(), new FutureHandler<Integer>(frame) {
                                @Override
                                protected void result(Integer flag) {
                                }
                        });
                }
        }

        public void fillPanelWithValues(TreePath treePath) {
                NodeAtFrame nodeAtFrame = assureLocalInfo(treePath);
                if (nodeAtFrame == null) {
                        return;
                }

                if (nodeAtFrame.panel == null) {
                        return;
                }
                Node node = TreeNode.tryGetNode(treePath);
                if (node == null) {
                        return;
                }
                nodeAtFrame.panel.setCurrentTreePath(treePath);
                nodeAtFrame.panel.pullValuesFromLocalToUser(TreeOperations.bindAccess(node));

                frame.showPanel(nodeAtFrame.panel);

        }

        public void useOrCreatePanel(TreePath treePath) {
                // node.assureResolved();
                Node node = TreeNode.tryGetNode(treePath);

                NodeAtFrame nodeAtFrame = assureLocalInfo(treePath);

                if (nodeAtFrame.panel == null) {
                        CompositeParam param = node.getParam();
                        nodeAtFrame.panel = findPanel(param.computeAccessId());
                        if (nodeAtFrame.panel == null) {
                                FramsClass framsClass = node.getTree().getInfoFromCache(param.getContainedTypeName());
                                nodeAtFrame.panel = preparePanel(param, framsClass);
                        }
                }
                fillPanelWithValues(treePath);
        }
}