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Scale image to fit frame

This commit is contained in:
Michael Stevenson 2022-11-21 14:42:13 -08:00
parent 39a24033bc
commit 245e6705f5
1 changed files with 23 additions and 19 deletions
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42
scripts/image_caption_gui.py
View File

@ -42,25 +42,22 @@ class ImageView(tk.Frame):
def __init__(self, root): def __init__(self, root):
tk.Frame.__init__(self, root) tk.Frame.__init__(self, root)
self.root = root
self.base_path = None self.base_path = None
self.images = [] self.images = []
self.index = 0 self.index = 0
# create a 2x2 grid
self.grid_columnconfigure(0, weight=2)
self.grid_columnconfigure(1, weight=1)
self.grid_rowconfigure(1, weight=1)
# filename
self.filename = tk.StringVar()
self.filename_widget = tk.Label(self, textvariable=self.filename)
self.filename_widget.grid(row=0, column=0, columnspan=2, sticky=tk.N + tk.W + tk.E)
# image # image
self.image_widget = tk.Label(self) self.image_frame = tk.Frame(self)
self.image_widget.grid(row=1, column=0, sticky=tk.W + tk.S + tk.N) self.image_label = tk.Label(self.image_frame)
self.image_label.place(relx=0.5, rely=0.5, anchor=tk.CENTER)
self.image_frame.pack(expand=True, fill=tk.BOTH, side=tk.LEFT)
# caption field # caption field
self.caption_field = tk.Text(self, wrap="word") self.caption_frame = tk.Frame(self)
self.caption_field.grid(row=1, column=1, sticky=tk.E + tk.S + tk.N) self.caption_field = tk.Text(self.caption_frame, wrap="word", width=50)
self.caption_field.pack(expand=True, fill=tk.BOTH)
self.caption_frame.pack(fill=tk.Y, side=tk.RIGHT)
def open_folder(self): def open_folder(self):
self.base_path = Path(filedialog.askdirectory()) self.base_path = Path(filedialog.askdirectory())
@ -114,19 +111,26 @@ class ImageView(tk.Frame):
if (len(self.images)) == 0: if (len(self.images)) == 0:
self.filename.set('') self.filename.set('')
self.caption_field.delete(1.0, tk.END) self.caption_field.delete(1.0, tk.END)
self.image_widget.configure(image=None) self.image_label.configure(image=None)
return return
img = self.images[self.index] img = self.images[self.index]
# filename # filename
self.filename.set(self.images[self.index].path.name) title = self.images[self.index].path.name if len(self.images) > 0 else ''
self.root.title(title)
# caption # caption
self.caption_field.delete(1.0, tk.END) self.caption_field.delete(1.0, tk.END)
self.caption_field.insert(tk.END, img.read_caption()) self.caption_field.insert(tk.END, img.read_caption())
# image # image
img = Image.open(self.images[self.index].path) img = Image.open(self.images[self.index].path)
img = ImageTk.PhotoImage(img)
self.image_widget.configure(image=img) # scale the image to fit inside the frame
self.image_widget.image = img w = self.image_frame.winfo_width()
h = self.image_frame.winfo_height()
if img.width > w or img.height > h:
img.thumbnail((w, h))
photoImage = ImageTk.PhotoImage(img)
self.image_label.configure(image=photoImage)
self.image_label.image = photoImage
if __name__=='__main__': if __name__=='__main__':
root = tk.Tk() root = tk.Tk()
@ -147,5 +151,5 @@ if __name__=='__main__':
root.bind('<Shift-Delete>', lambda e: view.delete_image()) root.bind('<Shift-Delete>', lambda e: view.delete_image())
view = ImageView(root) view = ImageView(root)
view.pack(side="top", fill="both", expand=True) view.pack(side=tk.TOP, fill=tk.BOTH, expand=True)
root.mainloop() root.mainloop()