Mouse Wheel Zoom On All Scrollable Windows

Plugin Writer, Consoles and the Hex-Viewer can now be zoomed in/out and support font control

src/main/java/the/bytecode/club/bytecodeviewer/gui/components/SearchableJTextArea.java

@@ -1,5 +1,6 @@
 package the.bytecode.club.bytecodeviewer.gui.components;
 
+import the.bytecode.club.bytecodeviewer.BytecodeViewer;
 import the.bytecode.club.bytecodeviewer.GlobalHotKeys;
 import the.bytecode.club.bytecodeviewer.resources.IconResources;
 import the.bytecode.club.bytecodeviewer.gui.components.listeners.PressKeyListener;
@@ -10,7 +11,9 @@ import the.bytecode.club.bytecodeviewer.util.JTextAreaUtils;
 
 import javax.swing.*;
 import java.awt.*;
+import java.awt.event.InputEvent;
 import java.awt.event.KeyEvent;
+import java.awt.event.MouseWheelListener;
 
 /***************************************************************************
  * Bytecode Viewer (BCV) - Java & Android Reverse Engineering Suite        *
@@ -78,6 +81,19 @@ public class SearchableJTextArea extends JTextArea
 			
 			GlobalHotKeys.keyPressed(keyEvent);
 		}));
+		
+		final Font newFont = getFont().deriveFont((float) BytecodeViewer.viewer.getFontSize());
+		
+		//set number-bar font
+		setFont(newFont);
+		
+		SwingUtilities.invokeLater(()-> {
+			//attach CTRL + Mouse Wheel Zoom
+			attachCtrlMouseWheelZoom();
+			
+			//set text font
+			setFont(newFont);
+		});
 	}
 	
 	public void search(String search, boolean forwardSearchDirection, boolean caseSensitiveSearch)
@@ -90,6 +106,41 @@ public class SearchableJTextArea extends JTextArea
 		JTextAreaUtils.highlight(this, pattern, caseSensitiveSearch);
 	}
 	
+	public void attachCtrlMouseWheelZoom()
+	{
+		//get the existing scroll event
+		MouseWheelListener ogListener = scrollPane.getMouseWheelListeners().length > 0 ?
+				scrollPane.getMouseWheelListeners()[0] : null;
+		
+		//remove the existing event
+		if(ogListener != null)
+			scrollPane.removeMouseWheelListener(ogListener);
+		
+		//add a new event
+		scrollPane.addMouseWheelListener(e ->
+		{
+			if (getText().isEmpty())
+				return;
+			
+			if ((e.getModifiersEx() & InputEvent.CTRL_DOWN_MASK) != 0)
+			{
+				Font font = getFont();
+				int size = font.getSize();
+				
+				if (e.getWheelRotation() > 0) //Up
+					setFont(new Font(font.getName(), font.getStyle(), --size >= 2 ? --size : 2));
+				else //Down
+					setFont(new Font(font.getName(), font.getStyle(), ++size));
+				
+				e.consume();
+			}
+			else if(ogListener != null)
+			{
+				ogListener.mouseWheelMoved(e);
+			}
+		});
+	}
+	
 	public JScrollPane getScrollPane()
 	{
 		return scrollPane;

src/main/java/the/bytecode/club/bytecodeviewer/gui/components/SearchableRSyntaxTextArea.java

@@ -2,6 +2,7 @@ package the.bytecode.club.bytecodeviewer.gui.components;
 
 import org.fife.ui.rsyntaxtextarea.RSyntaxTextArea;
 import org.fife.ui.rtextarea.RTextScrollPane;
+import the.bytecode.club.bytecodeviewer.BytecodeViewer;
 import the.bytecode.club.bytecodeviewer.Configuration;
 import the.bytecode.club.bytecodeviewer.GlobalHotKeys;
 import the.bytecode.club.bytecodeviewer.resources.IconResources;
@@ -58,15 +59,7 @@ public class SearchableRSyntaxTextArea extends RSyntaxTextArea
 	
 	public SearchableRSyntaxTextArea()
 	{
-		if(Configuration.lafTheme == LAFTheme.DARK || Configuration.lafTheme == LAFTheme.SOLARIZED_DARK)
+		if(Configuration.lafTheme == LAFTheme.HIGH_CONTRAST_DARK)
-		{
-			//this fixes the white border on the jScrollBar panes
-			scrollPane.getHorizontalScrollBar().setBackground(darkScrollBackground);
-			scrollPane.getHorizontalScrollBar().setForeground(darkScrollForeground);
-			scrollPane.getVerticalScrollBar().setBackground(darkScrollBackground);
-			scrollPane.getVerticalScrollBar().setForeground(darkScrollForeground);
-		}
-		else if(Configuration.lafTheme == LAFTheme.HIGH_CONTRAST_DARK)
 		{
 			//this fixes the white border on the jScrollBar panes
 			scrollPane.getHorizontalScrollBar().setBackground(blackScrollBackground);
@@ -74,6 +67,14 @@ public class SearchableRSyntaxTextArea extends RSyntaxTextArea
 			scrollPane.getVerticalScrollBar().setBackground(blackScrollBackground);
 			scrollPane.getVerticalScrollBar().setForeground(blackScrollForeground);
 		}
+		else if(Configuration.lafTheme.isDark())
+		{
+			//this fixes the white border on the jScrollBar panes
+			scrollPane.getHorizontalScrollBar().setBackground(darkScrollBackground);
+			scrollPane.getHorizontalScrollBar().setForeground(darkScrollForeground);
+			scrollPane.getVerticalScrollBar().setBackground(darkScrollBackground);
+			scrollPane.getVerticalScrollBar().setForeground(darkScrollForeground);
+		}
 		
 		setAntiAliasingEnabled(true);
 		
@@ -113,8 +114,19 @@ public class SearchableRSyntaxTextArea extends RSyntaxTextArea
 			GlobalHotKeys.keyPressed(keyEvent);
 		}));
 		
+		final Font newFont = getFont().deriveFont((float) BytecodeViewer.viewer.getFontSize());
+		
+		//set number-bar font
+		setFont(newFont);
+		
+		SwingUtilities.invokeLater(()-> {
 			//attach CTRL + Mouse Wheel Zoom
-		SwingUtilities.invokeLater(this::attachCtrlMouseWheelZoom);
+			attachCtrlMouseWheelZoom();
+			
+			//set text font
+			setFont(newFont);
+		});
+		
 	}
 	
 	public void search(String search, boolean forwardSearchDirection, boolean caseSensitiveSearch)

src/main/java/the/bytecode/club/bytecodeviewer/gui/hexviewer/JHexEditor.java

@@ -9,13 +9,7 @@ import java.awt.Font;
 import java.awt.FontMetrics;
 import java.awt.Graphics;
 import java.awt.Rectangle;
-import java.awt.event.AdjustmentEvent;
+import java.awt.event.*;
-import java.awt.event.AdjustmentListener;
-import java.awt.event.FocusEvent;
-import java.awt.event.FocusListener;
-import java.awt.event.KeyEvent;
-import java.awt.event.MouseWheelEvent;
-import java.awt.event.MouseWheelListener;
 import javax.swing.*;
 
 /**
@@ -82,6 +76,9 @@ public class JHexEditor extends JPanel implements FocusListener, AdjustmentListe
 
         this.setLayout(new BorderLayout(1, 1));
         this.add(panel, BorderLayout.CENTER);
+        
+        //attach CTRL + Mouse Wheel Zoom
+        SwingUtilities.invokeLater(this::attachCtrlMouseWheelZoom);
     }
 
     @Override
@@ -104,6 +101,43 @@ public class JHexEditor extends JPanel implements FocusListener, AdjustmentListe
         super.paint(g);
     }
     
+    public void attachCtrlMouseWheelZoom()
+    {
+        //get the existing scroll event
+        MouseWheelListener ogListener = getMouseWheelListeners().length > 0 ?
+                getMouseWheelListeners()[0] : null;
+        
+        //remove the existing event
+        if(ogListener != null)
+            removeMouseWheelListener(ogListener);
+        
+        //add a new event
+        addMouseWheelListener(e ->
+        {
+            if ((e.getModifiersEx() & InputEvent.CTRL_DOWN_MASK) != 0)
+            {
+                int size = font.getSize();
+                
+                Font newFont;
+                if (e.getWheelRotation() > 0) //Up
+                    newFont = new Font(font.getName(), font.getStyle(), --size >= 2 ? --size : 2);
+                else //Down
+                    newFont = new Font(font.getName(), font.getStyle(), ++size);
+                
+                setFont(newFont);
+                hex.setFont(newFont);
+                ascii.setFont(newFont);
+                font = newFont;
+                
+                e.consume();
+            }
+            else if(ogListener != null)
+            {
+                ogListener.mouseWheelMoved(e);
+            }
+        });
+    }
+
     protected int getInicio() {
         return inicio;
     }