X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fjexer%2Fttree%2FTDirectoryTreeItem.java;fp=src%2Fjexer%2Fttree%2FTDirectoryTreeItem.java;h=c260d7fb95212c7920fce537f5deb74066553b9f;hb=d36057dfab8def933a64be042b039d76708ac5ba;hp=0000000000000000000000000000000000000000;hpb=eb29bbb5ec70c43895dd0f053630c7e3cd402cba;p=fanfix.git

diff --git a/src/jexer/ttree/TDirectoryTreeItem.java b/src/jexer/ttree/TDirectoryTreeItem.java
new file mode 100644
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+++ b/src/jexer/ttree/TDirectoryTreeItem.java
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+/*
+ * 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());
+    }
+
+}