disable zoom/pan in camera3d

applications/gui2/src/views/camera3d.cpp

@@ -16,7 +16,9 @@ static Eigen::Affine3d create_rotation_matrix(float ax, float ay, float az) {
 
 // ==== CameraView3D ===========================================================
 
-CameraView3D::CameraView3D(ftl::gui2::Screen *parent, ftl::gui2::Camera *ctrl) : CameraView(parent, ctrl) {
+CameraView3D::CameraView3D(ftl::gui2::Screen *parent, ftl::gui2::Camera *ctrl) :
+		CameraView(parent, ctrl) {
+
 	eye_ = Eigen::Vector3d::Zero();
 	neye_ = Eigen::Vector4d::Zero();
 	rotmat_.setIdentity();
@@ -27,6 +29,9 @@ CameraView3D::CameraView3D(ftl::gui2::Screen *parent, ftl::gui2::Camera *ctrl) :
 	ftime_ = 0.0;
 	delta_ = 0.0;
 	lerp_speed_ = 0.999f;
+
+	imview_->setFixedScale(true);
+	imview_->setFixedOffset(true);
 }
 
 bool CameraView3D::keyboardEvent(int key, int scancode, int action, int modifiers) {
@@ -99,3 +104,8 @@ Eigen::Matrix4d CameraView3D::getUpdatedPose() {
 	Eigen::Affine3d t(trans);
 	return t.matrix() * rotmat_;
 }
+
+void CameraView3D::draw(NVGcontext* ctx) {
+	imview_->fit(); // TODO: should be moved to ::performLayout(ctx)?
+	CameraView::draw(ctx);
+}

applications/gui2/src/views/camera3d.hpp

@@ -18,6 +18,8 @@ public:
 	virtual bool mouseMotionEvent(const Eigen::Vector2i &p, const Eigen::Vector2i &rel, int button, int modifiers) override;
 	virtual bool mouseButtonEvent(const Eigen::Vector2i &p, int button, bool down, int modifiers) override;
 
+	virtual void draw(NVGcontext* ctx) override;
+
 	Eigen::Matrix4d getUpdatedPose();
 
 protected: