Merge pull request #6551 from facchinm/test_pr6394

Add font size shortcuts (menu, keyboard and mouse)

Author: facchinm

app/src/processing/app/Base.java

@@ -1843,6 +1843,17 @@ public void handlePrefs() {
     dialog.setVisible(true);
   }
 
+  /**
+   * Adjust font size
+   */
+  public void handleFontSizeChange(int change) {
+    String pieces[] = PApplet.split(PreferencesData.get("editor.font"), ',');
+    int newSize = Integer.parseInt(pieces[2]) + change;
+    pieces[2] = String.valueOf(newSize);
+    PreferencesData.set("editor.font", PApplet.join(pieces, ','));
+    this.getEditors().forEach(processing.app.Editor::applyPreferences);
+  }
+
   // XXX: Remove this method and make librariesIndexer non-static
   static public LibraryList getLibraries() {
     return BaseNoGui.librariesIndexer.getInstalledLibraries();

app/src/processing/app/Editor.java

@@ -1375,6 +1375,24 @@ public void actionPerformed(ActionEvent e) {
 
     menu.addSeparator();
 
+    JMenuItem increaseFontSizeItem = newJMenuItem(tr("Increase Font Size"), '+');
+    increaseFontSizeItem.addActionListener(new ActionListener() {
+        public void actionPerformed(ActionEvent e) {
+          base.handleFontSizeChange(1);
+        }
+    });
+    menu.add(increaseFontSizeItem);
+
+    JMenuItem decreaseFontSizeItem = newJMenuItem(tr("Decrease Font Size"), '-');
+    decreaseFontSizeItem.addActionListener(new ActionListener() {
+        public void actionPerformed(ActionEvent e) {
+          base.handleFontSizeChange(-1);
+        }
+    });
+    menu.add(decreaseFontSizeItem);
+
+    menu.addSeparator();
+
     JMenuItem findItem = newJMenuItem(tr("Find..."), 'F');
     findItem.addActionListener(new ActionListener() {
       public void actionPerformed(ActionEvent e) {

app/src/processing/app/EditorTab.java

@@ -30,6 +30,9 @@
 import java.awt.Font;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.awt.event.MouseWheelListener;
+import java.awt.event.MouseWheelEvent;
+
 import java.io.IOException;
 
 import javax.swing.Action;
@@ -64,7 +67,7 @@
 /**
  * Single tab, editing a single file, in the main window.
  */
-public class EditorTab extends JPanel implements SketchFile.TextStorage {
+public class EditorTab extends JPanel implements SketchFile.TextStorage, MouseWheelListener {
   protected Editor editor;
   protected SketchTextArea textarea;
   protected RTextScrollPane scrollPane;
@@ -106,6 +109,7 @@ public EditorTab(Editor editor, SketchFile file, String contents)
     file.setStorage(this);
     applyPreferences();
     add(scrollPane, BorderLayout.CENTER);
+	textarea.addMouseWheelListener(this);
   }
 
   private RSyntaxDocument createDocument(String contents) {
@@ -178,6 +182,18 @@ private SketchTextArea createTextArea(RSyntaxDocument document)
     return textArea;
   }
 
+  public void mouseWheelMoved(MouseWheelEvent e) {
+    if (e.isControlDown()) {
+      if (e.getWheelRotation() < 0) {
+        editor.base.handleFontSizeChange(1);
+      } else {
+        editor.base.handleFontSizeChange(-1);
+      }
+    } else {
+      e.getComponent().getParent().dispatchEvent(e);
+    }
+  }
+
   private void configurePopupMenu(final SketchTextArea textarea){
 
     JPopupMenu menu = textarea.getPopupMenu();