Initial code: - only single markdown editor window - markdown syntax highlighting for h1-h6, em and strong

Author	Karl Tauber <email>
Date	2015-07-21 19:34:23 GMT+0200
Commit	0db533d101f33d08b95f37330e00596ba299664a
Parent	eb7f2f2

src/main/java/org/markdownwriterfx/MarkdownWriterFXApp.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;
		+
		+import javafx.application.Application;
		+import javafx.scene.Scene;
		+import javafx.scene.layout.BorderPane;
		+import javafx.stage.Stage;
		+import org.markdownwriterfx.editor.MarkdownEditorPane;
		+
		+/**
		+ * Markdown Writer FX application.
		+ *
		+ * @author Karl Tauber
		+ */
		+public class MarkdownWriterFXApp
		+ extends Application
		+{
		+ public static void main(String[] args) {
		+ launch(args);
		+ }
		+
		+ @Override
		+ public void start(Stage primaryStage) throws Exception {
		+ 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);
		+
		+ primaryStage.setTitle("Markdown Writer FX");
		+ primaryStage.setScene(new Scene(content));
		+ primaryStage.show();
		+ }
		+}

src/main/java/org/markdownwriterfx/editor/MarkdownEditor.css

		+/*
		+ * 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.
		+ */
		+
		+.markdown-editor .h1 { -fx-font-size: 2em; }
		+.markdown-editor .h2 { -fx-font-size: 1.75em; }
		+.markdown-editor .h3 { -fx-font-size: 1.5em; }
		+.markdown-editor .h4 { -fx-font-size: 1.25em; }
		+.markdown-editor .h5 { -fx-font-size: 1.1em; }
		+.markdown-editor .h6 { -fx-font-size: 1em; }
		+
		+.markdown-editor .h1,
		+.markdown-editor .h2,
		+.markdown-editor .h3,
		+.markdown-editor .h4,
		+.markdown-editor .h5,
		+.markdown-editor .h6 {
		+ -fx-font-weight: bold;
		+ -fx-fill: crimson;
		+}
		+
		+.markdown-editor .em {
		+ -fx-font-style: italic;
		+ -fx-fill: #4060c0;
		+}
		+
		+.markdown-editor .strong {
		+ -fx-font-weight: bold;
		+ -fx-fill: #4060c0;
		+}

src/main/java/org/markdownwriterfx/editor/MarkdownEditorPane.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.editor;
		+
		+import javafx.scene.layout.BorderPane;
		+import org.fxmisc.richtext.StyleClassedTextArea;
		+import org.pegdown.Extensions;
		+import org.pegdown.PegDownProcessor;
		+import org.pegdown.ast.RootNode;
		+
		+/**
		+ * Markdown editor pane.
		+ *
		+ * Uses pegdown (https://github.com/sirthias/pegdown) for parsing markdown.
		+ *
		+ * @author Karl Tauber
		+ */
		+public class MarkdownEditorPane
		+ extends BorderPane
		+{
		+ private final StyleClassedTextArea textArea;
		+ 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));
		+ });
		+
		+ setCenter(textArea);
		+ }
		+
		+ public String getMarkdown() {
		+ return textArea.getText();
		+ }
		+
		+ public void setMarkdown(String markdown) {
		+ textArea.replaceText(markdown);
		+ }
		+
		+ private RootNode parseMarkdown(String text) {
		+ if(pegDownProcessor == null)
		+ pegDownProcessor = new PegDownProcessor(Extensions.ALL);
		+ return pegDownProcessor.parseMarkdown(text.toCharArray());
		+ }
		+
		+ private void applyHighlighting(RootNode astRoot) {
		+ MarkdownSyntaxHighlighter.highlight(textArea, astRoot);
		+ }
		+}

src/main/java/org/markdownwriterfx/editor/MarkdownSyntaxHighlighter.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.editor;
		+
		+import java.util.Collections;
		+import javafx.application.Platform;
		+import org.fxmisc.richtext.StyleClassedTextArea;
		+import org.pegdown.ast.*;
		+
		+/**
		+ * Markdown syntax highlighter.
		+ *
		+ * Uses pegdown AST.
		+ *
		+ * @author Karl Tauber
		+ */
		+class MarkdownSyntaxHighlighter
		+ implements Visitor
		+{
		+ private final StyleClassedTextArea textArea;
		+ private final int textLength;
		+
		+ static void highlight(StyleClassedTextArea textArea, RootNode astRoot) {
		+ new MarkdownSyntaxHighlighter(textArea).toStyles(astRoot);
		+ }
		+
		+ private MarkdownSyntaxHighlighter(StyleClassedTextArea textArea) {
		+ this.textArea = textArea;
		+ this.textLength = textArea.getLength();
		+ }
		+
		+ private void toStyles(RootNode astRoot) {
		+ assert Platform.isFxApplicationThread();
		+
		+ textArea.clearStyle(0, textLength);
		+ astRoot.accept(this);
		+ }
		+
		+ @Override
		+ public void visit(AbbreviationNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(AnchorLinkNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(AutoLinkNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(BlockQuoteNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(BulletListNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(CodeNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(DefinitionListNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(DefinitionNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(DefinitionTermNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(ExpImageNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(ExpLinkNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(HeaderNode node) {
		+ setStyleClass(node, "h" + node.getLevel());
		+ }
		+
		+ @Override
		+ public void visit(HtmlBlockNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(InlineHtmlNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(ListItemNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(MailLinkNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(OrderedListNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(ParaNode node) {
		+ // TODO Auto-generated method stub
		+ visitChildren(node);
		+ }
		+
		+ @Override
		+ public void visit(QuotedNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(ReferenceNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(RefImageNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(RefLinkNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(RootNode node) {
		+ // TODO Auto-generated method stub
		+ visitChildren(node);
		+ }
		+
		+ @Override
		+ public void visit(SimpleNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(SpecialTextNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(StrikeNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(StrongEmphSuperNode node) {
		+ setStyleClass(node, node.isStrong() ? "strong" : "em");
		+ }
		+
		+ @Override
		+ public void visit(TableBodyNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(TableCaptionNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(TableCellNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(TableColumnNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(TableHeaderNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(TableNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(TableRowNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(VerbatimNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(WikiLinkNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(TextNode node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ @Override
		+ public void visit(SuperNode node) {
		+ // TODO Auto-generated method stub
		+ visitChildren(node);
		+ }
		+
		+ @Override
		+ public void visit(Node node) {
		+ // TODO Auto-generated method stub
		+
		+ }
		+
		+ private void visitChildren(SuperNode node) {
		+ for (Node child : node.getChildren())
		+ child.accept(this);
		+ }
		+
		+ private void setStyleClass(Node node, String styleClass) {
		+ try {
		+ // because PegDownProcessor.prepareSource() adds two trailing newlines
		+ // to the text before parsing, we need to limit the end index
		+ textArea.setStyle(node.getStartIndex(),
		+ Math.min(node.getEndIndex(), textLength),
		+ Collections.singleton(styleClass));
		+ } catch(IllegalArgumentException ex) {
		+ ex.printStackTrace();
		+ }
		+ }
		+}

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