added option 'Choose image for the preview history? (y/n skip:'

interact/interact.py

@@ -31,7 +31,11 @@ class InteractBase(object):
         self.mouse_events = {}
         self.key_events = {}
         self.pg_bar = None
+        self.focus_wnd_name = None
 
+    def is_support_windows(self):
+        return False
+        
     def is_colab(self):
         return False
 
@@ -40,7 +44,10 @@ class InteractBase(object):
 
     def on_create_window (self, wnd_name):
         raise NotImplemented
-
+        
+    def on_destroy_window (self, wnd_name):
+        raise NotImplemented
+        
     def on_show_image (self, wnd_name, img):
         raise NotImplemented
 
@@ -66,17 +73,39 @@ class InteractBase(object):
         if wnd_name not in self.named_windows:
             #we will show window only on first show_image
             self.named_windows[wnd_name] = 0
+            self.focus_wnd_name = wnd_name
         else: print("named_window: ", wnd_name, " already created.")
 
     def destroy_all_windows(self):
-        if len( self.named_windows ) != 0:
+        if len( self.named_windows ) != 0:            
-            self.on_destroy_all_windows()
+            self.on_destroy_all_windows()            
             self.named_windows = {}
             self.capture_mouse_windows = {}
             self.capture_keys_windows = {}
             self.mouse_events = {}
             self.key_events = {}
-
+            self.focus_wnd_name = None
+            
+    def destroy_window(self, wnd_name):
+        if wnd_name in self.named_windows:
+            self.on_destroy_window(wnd_name)
+            self.named_windows.pop(wnd_name)
+            
+            if wnd_name == self.focus_wnd_name:                
+                self.focus_wnd_name = list(self.named_windows.keys())[-1] if len( self.named_windows ) != 0 else None
+            
+            if wnd_name in self.capture_mouse_windows:
+                self.capture_mouse_windows.pop(wnd_name)
+                
+            if wnd_name in self.capture_keys_windows:
+                self.capture_keys_windows.pop(wnd_name)
+                
+            if wnd_name in self.mouse_events:
+                self.mouse_events.pop(wnd_name)
+                
+            if wnd_name in self.key_events:
+                self.key_events.pop(wnd_name)
+            
     def show_image(self, wnd_name, img):
         if wnd_name in self.named_windows:
             if self.named_windows[wnd_name] == 0:
@@ -248,12 +277,18 @@ class InteractBase(object):
 
 
 class InteractDesktop(InteractBase):
-
+    
+    def is_support_windows(self):
+        return True
+        
     def on_destroy_all_windows(self):
         cv2.destroyAllWindows()
 
     def on_create_window (self, wnd_name):
         cv2.namedWindow(wnd_name)
+        
+    def on_destroy_window (self, wnd_name):
+        cv2.destroyWindow(wnd_name)
 
     def on_show_image (self, wnd_name, img):
         cv2.imshow (wnd_name, img)
@@ -305,14 +340,16 @@ class InteractDesktop(InteractBase):
                 time.sleep(sleep_time)
 
         if has_capture_keys and ord_key != -1:
-            for wnd_name in self.capture_keys_windows:
+            self.add_key_event ( self.focus_wnd_name, ord_key, False, False, shift_pressed)
-                self.add_key_event (wnd_name, ord_key, False, False, shift_pressed)
 
     def on_wait_any_key(self):
         cv2.waitKey(0)
 
 class InteractColab(InteractBase):
 
+    def is_support_windows(self):
+        return False
+        
     def is_colab(self):
         return True
 
@@ -323,6 +360,9 @@ class InteractColab(InteractBase):
     def on_create_window (self, wnd_name):
         pass
         #clear_output()
+        
+    def on_destroy_window (self, wnd_name):
+        pass
 
     def on_show_image (self, wnd_name, img):
         pass

models/ModelBase.py

@@ -85,6 +85,11 @@ class ModelBase(object):
         else:
             self.options['write_preview_history'] = self.options.get('write_preview_history', False)
 
+        if self.iter == 0 and self.options['write_preview_history'] and io.is_support_windows():
+            choose_preview_history = io.input_bool("Choose image for the preview history? (y/n skip:%s) : " % (yn_str[False]) , False)
+        else:
+            choose_preview_history = False
+        
         if ask_target_iter:
             if (self.iter == 0 or ask_override):
                 self.options['target_iter'] = max(0, io.input_int("Target iteration (skip:unlimited/default) : ", 0))
@@ -168,7 +173,35 @@ class ModelBase(object):
                         raise ValueError('training data generator is not subclass of SampleGeneratorBase')
 
             if (self.sample_for_preview is None) or (self.iter == 0):
-                self.sample_for_preview = self.generate_next_sample()
+                
+                if self.iter == 0:
+                    if choose_preview_history and io.is_support_windows():
+                        wnd_name = "[p] - next. [enter] - confirm."
+                        io.named_window(wnd_name)
+                        io.capture_keys(wnd_name)
+                        choosed = False
+                        while not choosed:
+                            self.sample_for_preview = self.generate_next_sample()
+                            preview = self.get_static_preview()
+                            io.show_image( wnd_name, (preview*255).astype(np.uint8) )
+  
+                            while True:
+                                key_events = io.get_key_events(wnd_name)
+                                key, chr_key, ctrl_pressed, alt_pressed, shift_pressed = key_events[-1] if len(key_events) > 0 else (0,0,False,False,False)
+                                if key == ord('\n') or key == ord('\r'):
+                                    choosed = True
+                                    break
+                                elif key == ord('p'):
+                                    break
+                                    
+                                try:
+                                    io.process_messages(0.1)
+                                except KeyboardInterrupt:
+                                    choosed = True
+                                         
+                        io.destroy_window(wnd_name)
+                    else:    
+                        self.sample_for_preview = self.generate_next_sample()
 
         model_summary_text = []