Make windows resizable

yt_idv/cameras/base_camera.py

@@ -41,7 +41,9 @@ class BaseCamera(traitlets.HasTraits):
     fov = traitlets.Float(45.0)
     near_plane = traitlets.Float(0.001)
     far_plane = traitlets.Float(20.0)
-    aspect_ratio = traitlets.Float(8.0 / 6.0)
+    aspect_ratio = traitlets.Float(
+        1.0
+    )  # This was 8.0/6.0 for a long time. I don't know why.
 
     projection_matrix = traittypes.Array(np.zeros((4, 4))).valid(
         ndarray_shape(4, 4), ndarray_ro()
@@ -83,6 +85,9 @@ def compute_matrices(self, change=None):
         with self.hold_traits(self._compute_matrices):
             pass
 
+    def _update_matrices(self):
+        pass
+
     def update_orientation(self, start_x, start_y, end_x, end_y):
         """Change camera orientation matrix using delta of mouse's cursor position
 

yt_idv/rendering_contexts/pyglet_context.py

@@ -47,7 +47,9 @@ def __init__(
             double_buffer=True,
             depth_size=24,
         )
-        super().__init__(width, height, config=config, visible=visible, caption=title)
+        super().__init__(
+            width, height, config=config, visible=visible, caption=title, resizable=True
+        )
         if position is None:
             self.center_window()
         else:
@@ -76,6 +78,13 @@ def on_draw(self):
             self.switch_to()
             self.gui.render(self.scene)
 
+    def on_resize(self, width, height):
+        super().on_resize(width, height)
+        self.scene.reset_framebuffers()
+        self.scene.camera.aspect_ratio = width / height
+        self.scene.camera._update_matrices()
+        self._do_update = True
+
     def set_position(self, xpos, ypos):
         if xpos < 0 or ypos < 0:
             raise RuntimeError

yt_idv/scene_graph.py

@@ -117,6 +117,10 @@ def __iter__(self):
         elements = self.components + self.annotations
         yield from sorted(elements, key=lambda a: a.priority)
 
+    def reset_framebuffers(self):
+        for c in self:
+            c.fb = Framebuffer()
+
     def render(self):
         """
         Render the scene into its local framebuffer.