--- /dev/null
+/*
+ * Jexer - Java Text User Interface
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (C) 2017 Kevin Lamonte
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * @author Kevin Lamonte [kevin.lamonte@gmail.com]
+ * @version 1
+ */
+package jexer.ttree;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Collections;
+import java.util.List;
+import java.util.LinkedList;
+
+import jexer.TWidget;
+import jexer.ttree.TTreeViewWidget;
+
+/**
+ * TDirectoryTreeItem is a single item in a disk directory tree view.
+ */
+public class TDirectoryTreeItem extends TTreeItem {
+
+ // ------------------------------------------------------------------------
+ // Variables --------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * File corresponding to this list item.
+ */
+ private File file;
+
+ /**
+ * The TTreeViewWidget containing this directory tree.
+ */
+ private TTreeViewWidget treeViewWidget;
+
+ // ------------------------------------------------------------------------
+ // Constructors -----------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Public constructor.
+ *
+ * @param view root TTreeViewWidget
+ * @param text text for this item
+ * @param expanded if true, have it expanded immediately
+ * @throws IOException if a java.io operation throws
+ */
+ public TDirectoryTreeItem(final TTreeViewWidget view, final String text,
+ final boolean expanded) throws IOException {
+
+ this(view, text, expanded, true);
+ }
+
+ /**
+ * Public constructor.
+ *
+ * @param view root TTreeViewWidget
+ * @param text text for this item
+ * @param expanded if true, have it expanded immediately
+ * @param openParents if true, expand all paths up the root path and
+ * return the root path entry
+ * @throws IOException if a java.io operation throws
+ */
+ public TDirectoryTreeItem(final TTreeViewWidget view, final String text,
+ final boolean expanded, final boolean openParents) throws IOException {
+
+ super(view.getTreeView(), text, false);
+
+ this.treeViewWidget = view;
+
+ List<String> parentFiles = new LinkedList<String>();
+ boolean oldExpanded = expanded;
+
+ // Convert to canonical path
+ File rootFile = new File(text);
+ rootFile = rootFile.getCanonicalFile();
+
+ if (openParents) {
+ setExpanded(true);
+
+ // Go up the directory tree
+ File parent = rootFile.getParentFile();
+ while (parent != null) {
+ parentFiles.add(rootFile.getName());
+ rootFile = rootFile.getParentFile();
+ parent = rootFile.getParentFile();
+ }
+ }
+ file = rootFile;
+ if (rootFile.getParentFile() == null) {
+ // This is a filesystem root, use its full name
+ setText(rootFile.getCanonicalPath());
+ } else {
+ // This is a relative path. We got here because openParents was
+ // false.
+ assert (!openParents);
+ setText(rootFile.getName());
+ }
+ onExpand();
+
+ if (openParents) {
+ TDirectoryTreeItem childFile = this;
+ Collections.reverse(parentFiles);
+ for (String p: parentFiles) {
+ for (TWidget widget: childFile.getChildren()) {
+ TDirectoryTreeItem child = (TDirectoryTreeItem) widget;
+ if (child.getText().equals(p)) {
+ childFile = child;
+ childFile.setExpanded(true);
+ childFile.onExpand();
+ break;
+ }
+ }
+ }
+ unselect();
+ getTreeView().setSelected(childFile, true);
+ setExpanded(oldExpanded);
+ }
+
+ view.reflowData();
+ }
+
+ // ------------------------------------------------------------------------
+ // TTreeItem --------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Get the File corresponding to this list item.
+ *
+ * @return the File
+ */
+ public final File getFile() {
+ return file;
+ }
+
+ /**
+ * Called when this item is expanded or collapsed. this.expanded will be
+ * true if this item was just expanded from a mouse click or keypress.
+ */
+ @Override
+ public final void onExpand() {
+ // System.err.printf("onExpand() %s\n", file);
+
+ if (file == null) {
+ return;
+ }
+ getChildren().clear();
+
+ // Make sure we can read it before trying to.
+ if (file.canRead()) {
+ setSelectable(true);
+ } else {
+ setSelectable(false);
+ }
+ assert (file.isDirectory());
+ setExpandable(true);
+
+ if (!isExpanded() || !isExpandable()) {
+ return;
+ }
+
+ for (File f: file.listFiles()) {
+ // System.err.printf(" -> file %s %s\n", file, file.getName());
+
+ if (f.getName().startsWith(".")) {
+ // Hide dot-files
+ continue;
+ }
+ if (!f.isDirectory()) {
+ continue;
+ }
+
+ try {
+ TDirectoryTreeItem item = new TDirectoryTreeItem(treeViewWidget,
+ f.getCanonicalPath(), false, false);
+
+ item.level = this.level + 1;
+ getChildren().add(item);
+ } catch (IOException e) {
+ continue;
+ }
+ }
+ Collections.sort(getChildren());
+ }
+
+}
git://git.nikiroo.be / fanfix.git / blobdiff