markdown AST preview added

Author	Karl Tauber <email>
Date	2015-07-22 15:33:17 GMT+0200
Commit	bd6a6708c82a49606e0b8abad3cb7753bf84b068
Parent	c848136

src/main/java/org/markdownwriterfx/MarkdownWriterFXApp.java

		import javafx.application.Application;
		import javafx.scene.Scene;
		-import javafx.scene.layout.BorderPane;
		+import javafx.scene.control.SplitPane;
		import javafx.stage.Stage;
		import org.markdownwriterfx.editor.MarkdownEditorPane;
		+import org.markdownwriterfx.preview.MarkdownPreviewPane;

		/**
		* Markdown Writer FX application.
		*
		* @author Karl Tauber
		*/
		public class MarkdownWriterFXApp
		extends Application
		{
		+ private MarkdownEditorPane markdownEditorPane;
		+ private MarkdownPreviewPane markdownPreviewPane;
		+
		public static void main(String[] args) {
		launch(args);
		}

		@Override
		public void start(Stage primaryStage) throws Exception {
		- MarkdownEditorPane markdownEditorPane = new MarkdownEditorPane();
		+ markdownEditorPane = new MarkdownEditorPane();
		markdownEditorPane.setMarkdown("# h1\n\n## h2\n\nsome bold text\n\n* ul 1\n* ul 2\n* ul 3");

		- BorderPane content = new BorderPane(markdownEditorPane);
		- content.setPrefSize(600, 800);
		+ markdownPreviewPane = new MarkdownPreviewPane();
		+ markdownPreviewPane.markdownASTProperty().bind(markdownEditorPane.markdownASTProperty());
		+
		+ SplitPane content = new SplitPane(markdownEditorPane.getNode(), markdownPreviewPane.getNode());
		+ content.setPrefSize(800, 800);

		primaryStage.setTitle("Markdown Writer FX");

src/main/java/org/markdownwriterfx/editor/MarkdownEditorPane.java

		package org.markdownwriterfx.editor;

		-import javafx.scene.layout.BorderPane;
		+import javafx.beans.property.ReadOnlyObjectProperty;
		+import javafx.beans.property.ReadOnlyObjectWrapper;
		+import javafx.beans.value.ObservableValue;
		+import javafx.scene.Node;
		import org.fxmisc.richtext.StyleClassedTextArea;
		import org.pegdown.Extensions;

		*/
		public class MarkdownEditorPane
		- extends BorderPane
		{
		private final StyleClassedTextArea textArea;
		+ private final ReadOnlyObjectWrapper<RootNode> markdownAST = new ReadOnlyObjectWrapper<>();
		private PegDownProcessor pegDownProcessor;

		public MarkdownEditorPane() {
		textArea = new StyleClassedTextArea();
		textArea.setWrapText(true);
		textArea.getStyleClass().add("markdown-editor");
		textArea.getStylesheets().add("org/markdownwriterfx/editor/MarkdownEditor.css");

		textArea.textProperty().addListener((observable, oldText, newText) -> {
		- applyHighlighting(parseMarkdown(newText));
		+ RootNode astRoot = parseMarkdown(newText);
		+ applyHighlighting(astRoot);
		+ markdownAST.set(astRoot);
		});
		-
		- setCenter(textArea);
		}

		- public String getMarkdown() {
		- return textArea.getText();
		+ public Node getNode() {
		+ return textArea;
		}

		- public void setMarkdown(String markdown) {
		- textArea.replaceText(markdown);
		- }
		+ // markdown property
		+ public String getMarkdown() { return textArea.getText(); }
		+ public void setMarkdown(String markdown) { textArea.replaceText(markdown); }
		+ public ObservableValue<String> markdownProperty() { return textArea.textProperty(); }
		+
		+ // markdownAST property
		+ public RootNode getMarkdownAST() { return markdownAST.get(); }
		+ public ReadOnlyObjectProperty<RootNode> markdownASTProperty() { return markdownAST.getReadOnlyProperty(); }

		private RootNode parseMarkdown(String text) {

src/main/java/org/markdownwriterfx/preview/ASTPreview.java

		+/*
		+ * Copyright (c) 2015 Karl Tauber <karl at jformdesigner dot com>
		+ * All rights reserved.
		+ *
		+ * Redistribution and use in source and binary forms, with or without
		+ * modification, are permitted provided that the following conditions are met:
		+ *
		+ * o Redistributions of source code must retain the above copyright
		+ * notice, this list of conditions and the following disclaimer.
		+ *
		+ * o Redistributions in binary form must reproduce the above copyright
		+ * notice, this list of conditions and the following disclaimer in the
		+ * documentation and/or other materials provided with the distribution.
		+ *
		+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
		+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
		+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
		+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
		+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
		+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
		+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
		+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		+ */
		+
		+package org.markdownwriterfx.preview;
		+
		+import javafx.scene.Node;
		+import javafx.scene.control.TextArea;
		+import org.parboiled.support.ToStringFormatter;
		+import org.parboiled.trees.GraphUtils;
		+import org.pegdown.ast.RootNode;
		+
		+/**
		+ * Pegdown AST preview.
		+ * Prints the AST tree to a text area.
		+ *
		+ * @author Karl Tauber
		+ */
		+class ASTPreview
		+{
		+ private final TextArea textArea = new TextArea();
		+
		+ ASTPreview() {
		+ textArea.setEditable(false);
		+ }
		+
		+ Node getNode() {
		+ return textArea;
		+ }
		+
		+ void update(RootNode astRoot) {
		+ textArea.setText(GraphUtils.printTree(astRoot, new ToStringFormatter<>()));
		+ }
		+}

src/main/java/org/markdownwriterfx/preview/MarkdownPreviewPane.java

		+/*
		+ * Copyright (c) 2015 Karl Tauber <karl at jformdesigner dot com>
		+ * All rights reserved.
		+ *
		+ * Redistribution and use in source and binary forms, with or without
		+ * modification, are permitted provided that the following conditions are met:
		+ *
		+ * o Redistributions of source code must retain the above copyright
		+ * notice, this list of conditions and the following disclaimer.
		+ *
		+ * o Redistributions in binary form must reproduce the above copyright
		+ * notice, this list of conditions and the following disclaimer in the
		+ * documentation and/or other materials provided with the distribution.
		+ *
		+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
		+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
		+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
		+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
		+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
		+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
		+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
		+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		+ */
		+
		+package org.markdownwriterfx.preview;
		+
		+import javafx.beans.property.ObjectProperty;
		+import javafx.beans.property.SimpleObjectProperty;
		+import javafx.scene.Node;
		+import org.pegdown.ast.RootNode;
		+
		+/**
		+ * Markdown preview pane.
		+ *
		+ * Uses pegdown AST.
		+ *
		+ * @author Karl Tauber
		+ */
		+public class MarkdownPreviewPane
		+{
		+ private final ASTPreview astPreview = new ASTPreview();
		+
		+ public MarkdownPreviewPane() {
		+ markdownAST.addListener((observable, oldValue, newValue) -> {
		+ astPreview.update(newValue);
		+ });
		+ }
		+
		+ public Node getNode() {
		+ return astPreview.getNode();
		+ }
		+
		+ // markdownAST property
		+ private final ObjectProperty<RootNode> markdownAST = new SimpleObjectProperty<RootNode>();
		+ public RootNode getMarkdownAST() { return markdownAST.get(); }
		+ public void setMarkdownAST(RootNode astRoot) { markdownAST.set(astRoot); }
		+ public ObjectProperty<RootNode> markdownASTProperty() { return markdownAST; }
		+}

Delta	147 lines added, 14 lines removed, 133-line increase