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Better CTRL + Mouse Wheel Zoom

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This adds mouse wheel zoom functionality onto all of the searchable text panes. This also fixes a scrolling bug.
This commit is contained in:
Konloch 2021-07-18 22:36:19 -07:00
parent 1805df4c97
commit 18c0607c8e
2 changed files with 38 additions and 28 deletions
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38
src/main/java/the/bytecode/club/bytecodeviewer/gui/components/SearchableRSyntaxTextArea.java
View file

@ -15,7 +15,9 @@ import the.bytecode.club.bytecodeviewer.util.JTextAreaUtils;
import javax.swing.*;
import javax.swing.text.BadLocationException;
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 *
@ -110,6 +112,9 @@ public class SearchableRSyntaxTextArea extends RSyntaxTextArea
GlobalHotKeys.keyPressed(keyEvent);
}));
//attach CTRL + Mouse Wheel Zoom
SwingUtilities.invokeLater(this::attachCtrlMouseWheelZoom);
}
public void search(String search, boolean forwardSearchDirection, boolean caseSensitiveSearch)
@ -122,6 +127,39 @@ public class SearchableRSyntaxTextArea extends RSyntaxTextArea
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));
}
else if(ogListener != null)
{
ogListener.mouseWheelMoved(e);
}
});
}
public String getLineText(int line) {
try {
if (line < getLineCount()) {

28
src/main/java/the/bytecode/club/bytecodeviewer/gui/util/BytecodeViewPanelUpdater.java
View file

@ -174,34 +174,6 @@ public class BytecodeViewPanelUpdater implements Runnable
//this still freezes the swing UI
synchronizePane();
//attach CTRL + Mouse Wheel Zoom
SwingUtilities.invokeLater(()->
attachCtrlMouseWheelZoom(updateUpdaterTextArea.getScrollPane(), updateUpdaterTextArea));
}
public void attachCtrlMouseWheelZoom(RTextScrollPane scrollPane, RSyntaxTextArea panelArea)
{
if (scrollPane == null)
return;
scrollPane.addMouseWheelListener(e ->
{
if (panelArea == null || panelArea.getText().isEmpty())
return;
if ((e.getModifiersEx() & InputEvent.CTRL_DOWN_MASK) != 0)
{
Font font = panelArea.getFont();
int size = font.getSize();
if (e.getWheelRotation() > 0) //Up
panelArea.setFont(new Font(font.getName(), font.getStyle(), --size >= 2 ? --size : 2));
else //Down
panelArea.setFont(new Font(font.getName(), font.getStyle(), ++size));
}
e.consume();
});
}
public final CaretListener caretListener = new CaretListener()