Add support for navigator commands - rotate, translate, zoom

avogadro/qtplugins/navigator/navigator.cpp

@@ -13,12 +13,13 @@
 #include <avogadro/rendering/glrenderer.h>
 #include <avogadro/rendering/scene.h>
 
-#include <QtGui/QGuiApplication>
+#include <QAction>
+#include <QDebug>
 #include <QtCore/QSettings>
+#include <QtGui/QGuiApplication>
 #include <QtGui/QKeyEvent>
 #include <QtGui/QMouseEvent>
 #include <QtGui/QWheelEvent>
-#include <QAction>
 #include <QtWidgets/QCheckBox>
 #include <QtWidgets/QVBoxLayout>
 
@@ -42,11 +43,49 @@ Navigator::Navigator(QObject* parent_)
        "Left Mouse: \tClick and drag to rotate the view.\n"
        "Middle Mouse: \tClick and drag to zoom in or out.\n"
        "Right Mouse: \tClick and drag to move the view.\n"));
-      
+
   QSettings settings;
   m_zoomDirection = settings.value("navigator/zoom", 1).toInt();
 }
 
+void Navigator::registerCommands()
+{
+  emit registerCommand("rotateScene",
+                       tr("Rotate the scene along the x, y, or z axes."));
+  emit registerCommand("zoomScene", tr("Zoom the scene."));
+  emit registerCommand("translateScene", tr("Translate the scene."));
+}
+
+bool Navigator::handleCommand(const QString& command,
+                              const QVariantMap& options)
+{
+  if (m_renderer == nullptr)
+    return false; // No camera
+
+  if (command == "rotateScene") {
+    float x = options.value("x").toFloat();
+    float y = options.value("y").toFloat();
+    float z = options.value("z").toFloat();
+    rotate(m_renderer->camera().focus(), x, y, z);
+
+    m_glWidget->requestUpdate();
+  } else if (command == "zoomScene") {
+    float d = options.value("delta").toFloat();
+    zoom(m_renderer->camera().focus(), d);
+    m_glWidget->requestUpdate();
+  } else if (command == "translateScene") {
+    float x = options.value("x").toFloat();
+    float y = options.value("y").toFloat();
+    translate(m_renderer->camera().focus(), x, y);
+    m_glWidget->requestUpdate();
+  } else {
+    qDebug() << "Unknown command: " << command;
+    return false;
+  }
+
+  return true;
+}
+
 Navigator::~Navigator() {}
 
 QWidget* Navigator::toolWidget() const
@@ -55,8 +94,7 @@ QWidget* Navigator::toolWidget() const
     m_toolWidget = new QWidget(qobject_cast<QWidget*>(parent()));
     auto* layout = new QVBoxLayout;
 
-    auto* swapZoom =
-      new QCheckBox(tr("Reverse Direction of Zoom on Scroll"));
+    auto* swapZoom = new QCheckBox(tr("Reverse Direction of Zoom on Scroll"));
     swapZoom->setToolTip(
       tr("Default:\t Scroll down to shrink, scroll up to zoom\n"
          "Reversed:\t Scroll up to shrink, scroll down to zoom"));
@@ -169,7 +207,8 @@ QUndoCommand* Navigator::wheelEvent(QWheelEvent* e)
   QPoint numDegrees = e->angleDelta() * 0.125;
 
   // see https://doc.qt.io/qt-5/qwheelevent.html#pixelDelta
-  if (!numPixels.isNull() && QGuiApplication::platformName().toStdString().compare("xcb"))
+  if (!numPixels.isNull() &&
+      QGuiApplication::platformName().toStdString().compare("xcb"))
     d = numPixels.y(); // use pixelDelta() when available, except on X11
   else if (!numDegrees.isNull())
     d = numDegrees.y(); // fall back to angleDelta()
@@ -299,4 +338,4 @@ inline void Navigator::translate(const Vector3f& ref, const Vector2f& fromScr,
   m_renderer->camera().translate(to - from);
 }
 
-} // namespace Avogadro
+} // namespace Avogadro::QtPlugins

avogadro/qtplugins/navigator/navigator.h

@@ -49,6 +49,11 @@ class Navigator : public QtGui::ToolPlugin
   QUndoCommand* keyPressEvent(QKeyEvent* e) override;
   QUndoCommand* keyReleaseEvent(QKeyEvent* e) override;
 
+  bool handleCommand(const QString& command,
+                     const QVariantMap& options) override;
+
+  void registerCommands() override;
+
 protected slots:
   void swapZoomDirection(bool checked);