robert/png-meta-editor
robert/png-meta-editor
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fixed dark mode and scrolling, added symbols to buttons

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robert 2026-01-06 23:08:33 +01:00
parent 44c05ed66e
commit 5d838bc27e
1 changed files with 29 additions and 22 deletions
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51
png-meta-editor.py
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@ -15,7 +15,7 @@ class PNGMetadataEditor:
def __init__(self, root):
self.root = root
self.root.title(f"{APP_NAME} v{APP_VERSION}")
self.root.geometry("800x600") # Smaller window size
self.root.geometry("1000x700") # Smaller window size
self.current_file = None
self.current_directory = None
self.metadata_dict = {}
@ -35,7 +35,7 @@ class PNGMetadataEditor:
def detect_dark_mode(self):
"""Detect if the OS is in dark mode"""
system = platform.system()
if system == "Darwin": # macOS
try:
result = subprocess.run(
@ -89,14 +89,15 @@ class PNGMetadataEditor:
def setup_ui(self):
# Initialize theme colors
self.theme_colors = self.get_theme_colors()
# Top frame for file operations
top_frame = ttk.Frame(self.root, padding="10")
top_frame.pack(fill=tk.X)
ttk.Button(top_frame, text="Open PNG File", command=self.open_file).pack(side=tk.LEFT, padx=5)
ttk.Button(top_frame, text="Browse Directory", command=self.browse_directory).pack(side=tk.LEFT, padx=5)
ttk.Button(top_frame, text="Save Changes", command=self.save_changes).pack(side=tk.LEFT, padx=5)
ttk.Button(top_frame, text="About", command=self.show_about).pack(side=tk.RIGHT, padx=5)
ttk.Button(top_frame, text="📄 Open PNG File", command=self.open_file).pack(side=tk.LEFT, padx=5)
ttk.Button(top_frame, text="📥 Browse Directory", command=self.browse_directory).pack(side=tk.LEFT, padx=5)
ttk.Button(top_frame, text="✅ Save Changes", command=self.save_changes).pack(side=tk.LEFT, padx=5)
ttk.Button(top_frame, text="ℹ️ About", command=self.show_about).pack(side=tk.RIGHT, padx=5)
self.file_label = ttk.Label(top_frame, text="No file loaded", foreground="gray")
self.file_label.pack(side=tk.LEFT, padx=20)
@ -190,10 +191,10 @@ class PNGMetadataEditor:
button_frame = ttk.Frame(editor_frame, padding="10")
button_frame.pack(fill=tk.X)
ttk.Button(button_frame, text="Add Field", command=self.add_field).pack(side=tk.LEFT, padx=5)
ttk.Button(button_frame, text="Edit Field", command=self.edit_entry).pack(side=tk.LEFT, padx=5)
ttk.Button(button_frame, text="Delete Field", command=self.delete_field).pack(side=tk.LEFT, padx=5)
ttk.Button(button_frame, text="Copy Value", command=self.copy_value).pack(side=tk.LEFT, padx=5)
ttk.Button(button_frame, text="🤌 Add Field", command=self.add_field).pack(side=tk.LEFT, padx=5)
ttk.Button(button_frame, text="✏️ Edit Field", command=self.edit_entry).pack(side=tk.LEFT, padx=5)
ttk.Button(button_frame, text="❌ Delete Field", command=self.delete_field).pack(side=tk.LEFT, padx=5)
ttk.Button(button_frame, text="✌️ Copy Value", command=self.copy_value).pack(side=tk.LEFT, padx=5)
# Status bar at the bottom
status_frame = ttk.Frame(self.root, relief=tk.SUNKEN)
@ -288,7 +289,7 @@ class PNGMetadataEditor:
loading_frame.pack(fill=tk.BOTH, expand=True, pady=50)
loading_label = tk.Label(loading_frame, text="Loading thumbnails...",
font=("TkDefaultFont", 11, "bold"), foreground="#4a90d9", bg="#f0f0f0")
font=("TkDefaultFont", 11, "bold"), foreground="#4a90d9", bg=self.theme_colors["frame_bg"])
loading_label.pack()
# Force immediate display
@ -303,7 +304,7 @@ class PNGMetadataEditor:
no_files_frame = tk.Frame(self.thumb_container, bg=self.theme_colors["frame_bg"])
no_files_frame.pack(fill=tk.BOTH, expand=True, pady=50)
tk.Label(no_files_frame, text="No PNG files found",
font=("TkDefaultFont", 10), foreground="gray", bg="#f0f0f0").pack()
font=("TkDefaultFont", 10), foreground="gray", bg=self.theme_colors["frame_bg"]).pack()
self.set_status(f"No PNG files found in {Path(directory).name}", color="orange")
return
@ -369,11 +370,17 @@ class PNGMetadataEditor:
# Hide loading indicator
loading_frame.destroy()
# CRITICAL: Force update of scroll region after all thumbnails are loaded
# Without this, scrolling stops after visible thumbnails
self.thumb_container.update_idletasks()
self.thumb_canvas.update_idletasks()
self.thumb_canvas.configure(scrollregion=self.thumb_canvas.bbox("all"))
# Force scroll region update
def update_scroll():
self.thumb_container.update_idletasks()
self.thumb_canvas.update_idletasks()
bbox = self.thumb_canvas.bbox("all")
if bbox:
self.thumb_canvas.configure(scrollregion=bbox)
update_scroll()
self.root.after(100, update_scroll)
self.root.after(300, update_scroll)
self.set_status(f"Loaded {len(png_files)} PNG file(s) from {Path(directory).name}", color="green")
@ -430,11 +437,11 @@ class PNGMetadataEditor:
about_text = f"{APP_NAME} v{APP_VERSION}\n\n" \
"A graphical tool for viewing and editing metadata in PNG files.\n\n" \
"Features:\n" \
"• Browse directories with thumbnail previews\n" \
"• Trackpad/mousewheel scrolling support\n" \
"• Auto-scroll to selected images\n" \
"• View and edit PNG metadata\n" \
"• Copy metadata between files\n\n" \
"✅ Browse directories with thumbnail previews\n" \
"✅ Trackpad/mousewheel scrolling support\n" \
"✅ Auto-scroll to selected images\n" \
"✅ View and edit PNG metadata\n" \
"✅ Copy metadata between files\n\n" \
"Author: Robert Tusa\n" \
"License: MIT"