Add option to reload mesh/scene and return file open shortcut

Author: sercero

ogre_mesh_viewer.py

@@ -138,6 +138,7 @@ def __init__(self, app):
         self.show_metrics = False
         self.show_render_settings = False
         self.side_panel_visible = True
+        self.load_file_lock = False
 
         self.app = app
 
@@ -200,6 +201,21 @@ def draw_loading(self):
         ImGui.Text("Loading..            ")
         ImGui.End()
 
+    def reload(self):
+        if app.infile:
+            app.restart = True
+            app.getRoot().queueEndRendering()
+
+    def load_file(self):
+        # Avoid recursive calling, which might block the window manager
+        if self.load_file_lock:
+            return
+        else:
+            self.load_file_lock = True
+        app.infile = askopenfilename(app.filedir)
+        self.load_file_lock = False
+        self.reload()
+
     def preRenderTargetUpdate(self, evt):
         if not self.app.cam.getViewport().getOverlaysEnabled():
             return
@@ -215,11 +231,10 @@ def preRenderTargetUpdate(self, evt):
         if ImGui.BeginMainMenuBar():
 
             if ImGui.BeginMenu("File"):
-                if ImGui.MenuItem("Open File"):
-                    app.infile = askopenfilename(app.filedir)
-                    if app.infile:
-                        app.restart = True
-                        app.getRoot().queueEndRendering()
+                if ImGui.MenuItem("Open File", "F1"):
+                    self.load_file()
+                if ImGui.MenuItem("ReLoad File", "F5"):
+                    self.reload()
                 if ImGui.MenuItem("Renderer Settings"):
                     self.show_render_settings = True
                 if ImGui.MenuItem("Save Screenshot", "P"):
@@ -455,6 +470,10 @@ def keyPressed(self, evt):
             self._save_screenshot()
         elif evt.keysym.sym == ord("w"):
             self._toggle_wireframe_mode()
+        elif evt.keysym.sym == OgreBites.SDLK_F1:
+            self.gui.load_file()
+        elif evt.keysym.sym == OgreBites.SDLK_F5:
+            self.gui.reload()
 
         return True