QtSignalViewer

QtSignalViewer is a Visual Studio Code extension for viewing Qt signal and slot relationships as an interactive graph.

Features

• Press Ctrl+F2 on a Qt signal, slot, function, emit, or connect line to open a graph view.
• Shows signal flow across emit, connect, and slot functions.
• Supports common Qt connection styles:
  • connect(sender, SIGNAL(signalName(...)), receiver, SLOT(slotName(...)))
  • QObject::connect(sender, &Sender::signalName, receiver, &Receiver::slotName)
  • connect(sender, &Sender::signalName, receiver, &Receiver::slotName)
• Click a graph node to jump to the corresponding file and line.
• Drag and zoom the graph view.
• Highlights the selected node and colors incoming/outgoing edges.

Usage

1. Open a Qt/C++ source file.
2. Place the cursor on a signal, slot, function name, emit, or connect line.
3. Press Ctrl+F2.
4. The Qt signal graph opens beside the editor.

Notes

The extension uses lightweight source scanning instead of a full C++ compiler frontend. It works best with typical Qt signal/slot code patterns and may not resolve every macro-heavy or highly dynamic case.

Release Notes

0.0.1

Initial release with Qt signal/slot graph visualization.