VALLONGOL/SXXXXXXX_ControlPanel
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corretta la dimensione delle finestre di visualizzazione

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VALLONGOL 2026-01-16 15:28:17 +01:00
parent 2e90829be3
commit 14b69f1e3d
1 changed files with 31 additions and 26 deletions
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57
VideoReceiverSFP/gui/viewer_sar.py
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@ -41,11 +41,10 @@ class SfpSarViewer:
img_frame = ttk.Frame(main)
img_frame.grid(row=0, column=0, sticky="nsew")
# Use Canvas to ensure fixed size display
# Use Canvas to ensure fixed size display; we'll draw images into it
self._img_canvas = tk.Canvas(img_frame, width=484, height=484, bg="black", highlightthickness=0)
self._img_canvas.pack(fill="both", expand=True)
self._img_label = tk.Label(self._img_canvas, bg="black")
self._img_canvas.create_window(242, 242, window=self._img_label)
self._canvas_image_id = None
# Right controls
ctrl_frame = ttk.Labelframe(main, text="SAR Controls", padding=8)
@ -278,14 +277,12 @@ class SfpSarViewer:
except Exception:
disp_img = img
# Resize to fit the label widget while preserving aspect ratio.
# Resize to fit the canvas while preserving aspect ratio.
try:
w = self._img_label.winfo_width()
h = self._img_label.winfo_height()
# If widget not yet laid out, winfo_ reports 1; use geometry fallback
w = self._img_canvas.winfo_width()
h = self._img_canvas.winfo_height()
if w > 2 and h > 2:
max_size = (max(1, w), max(1, h))
# Resize the display image copy (disp_img) not the raw image
try:
disp_img = disp_img.copy()
disp_img.thumbnail(max_size, Image.LANCZOS)
@ -301,27 +298,35 @@ class SfpSarViewer:
except Exception:
pass
# Save a debug copy
try:
dumps_dir = os.path.join(os.getcwd(), 'dumps')
os.makedirs(dumps_dir, exist_ok=True)
debug_path = os.path.join(dumps_dir, 'VideoReceiverSFP_sar_last.png')
try:
disp_img.save(debug_path)
except Exception:
img.save(debug_path)
except Exception:
pass
try:
return ImageTk.PhotoImage(disp_img, master=self._root)
except Exception:
# Fallback to default behavior
return ImageTk.PhotoImage(disp_img)
except Exception:
logging.exception("SfpSarViewer: failed to build tk image")
return None
def _draw_image_on_canvas(self, photo_image: ImageTk.PhotoImage) -> None:
try:
# Keep reference to avoid GC
self._last_photoimage = photo_image
# Draw into canvas, centered
if self._canvas_image_id is None:
self._canvas_image_id = self._img_canvas.create_image(
self._img_canvas.winfo_width() // 2,
self._img_canvas.winfo_height() // 2,
image=self._last_photoimage,
anchor='center'
)
else:
self._img_canvas.itemconfigure(self._canvas_image_id, image=self._last_photoimage)
# Recenter in case canvas size changed
self._img_canvas.coords(self._canvas_image_id,
self._img_canvas.winfo_width() // 2,
self._img_canvas.winfo_height() // 2)
except Exception:
pass
def _poll(self):
try:
frame = None
@ -337,7 +342,7 @@ class SfpSarViewer:
tkimg = self._build_tk_image(frame)
if tkimg is not None:
self._photo = tkimg
self._img_label.config(image=self._photo)
self._draw_image_on_canvas(self._photo)
elif params_changed:
# No new frame but params changed: refresh current image
self._refresh_current_image()
@ -384,8 +389,8 @@ class SfpSarViewer:
except Exception:
pil = raw
try:
w = self._img_label.winfo_width()
h = self._img_label.winfo_height()
w = self._img_canvas.winfo_width()
h = self._img_canvas.winfo_height()
if w > 2 and h > 2:
pil = pil.copy()
pil.thumbnail((max(1, w), max(1, h)), Image.LANCZOS)
@ -398,8 +403,8 @@ class SfpSarViewer:
with self._lock:
self._photo = tkimg
try:
self._img_label.config(image=self._photo)
self._img_label.update_idletasks()
self._draw_image_on_canvas(self._photo)
self._img_canvas.update_idletasks()
except Exception:
pass
except Exception: