100 lines
5.7 KiB
Python
100 lines
5.7 KiB
Python
import tkinter as tk
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from tkinter import ttk
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class ThemeManager:
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"""Manager for application theme configuration (defaulting to light theme)."""
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def __init__(self, root):
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"""
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Initialize the theme manager and apply the light theme.
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Args:
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root: The Tkinter root window (needed for background config).
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"""
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self.root = root
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self.style = ttk.Style()
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self.apply_theme() # Directly apply light theme
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def apply_theme(self):
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"""Applies the light theme."""
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self._apply_light_theme()
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# Ensure the root window background matches the theme
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try:
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bg_color = self.style.lookup('.', 'background')
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self.root.configure(background=bg_color)
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except tk.TclError:
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# Fallback if style lookup fails
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self.root.configure(background='SystemButtonFace')
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def _apply_light_theme(self):
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"""Configure a standard light theme using system defaults where possible."""
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try:
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# Use a standard theme, preferring OS native look
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available_themes = self.style.theme_names()
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# Windows preference order
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preferred_themes = ['vista', 'xpnative', 'clam', 'alt', 'default']
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chosen_theme = 'default'
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for theme in preferred_themes:
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if theme in available_themes:
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try:
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self.style.theme_use(theme)
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chosen_theme = theme
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# print(f"Using theme: {chosen_theme}") # Debug
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break
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except tk.TclError:
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continue
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# Reset most styles to theme defaults by configuring with empty strings
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# or removing specific configure calls if they were only for dark theme.
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# Explicitly set base theme colors for light mode
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self.style.configure('.', background='SystemButtonFace', foreground='SystemWindowText')
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self.style.configure('TFrame', background='SystemButtonFace')
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# Explicitly set foreground AND background for visibility
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self.style.configure('TLabel', foreground='SystemWindowText', background='SystemButtonFace')
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# Explicitly set foreground AND background for visibility
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self.style.configure('TButton', foreground='SystemWindowText', background='SystemButtonFace', padding=5)
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# Reset button border color explicitly if needed, or remove if SystemButtonFace is desired
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self.style.configure('TButton', bordercolor='SystemGrayText') # Example: Use a visible border
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self.style.map('TButton',
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background=[('active', 'SystemButtonHighlight'), ('pressed', '!focus', 'SystemButtonFace'), ('focus', 'SystemButtonHighlight')]) # Example map
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# Keep Danger button distinct
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self.style.configure('Danger.TButton', foreground='black', background='#cc3333', bordercolor='#aa2222', padding=5) # Enhanced danger button
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self.style.map('Danger.TButton',
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background=[('active', '#dd4444'), ('pressed', '#bb2222')],
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foreground=[('active', 'black'), ('pressed', 'black')])
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# TEntry: Use defaults. Let's ensure its colors are sensible too.
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self.style.configure('TEntry', foreground='SystemWindowText', fieldbackground='SystemWindow', insertcolor='SystemWindowText', bordercolor='SystemGrayText')
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# self.style.map('TEntry') # Reset map - might not be needed if configure is explicit
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self.style.configure('TLabelframe', background='SystemButtonFace', bordercolor='SystemGrayText')
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# Ensure label frame labels are also visible
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self.style.configure('TLabelframe.Label', background='SystemButtonFace', foreground='SystemWindowText')
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# TNotebook adjustments (if needed, often inherit well)
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self.style.configure('TNotebook', background='SystemButtonFace', bordercolor='SystemGrayText', tabmargins=[2, 5, 2, 0])
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self.style.configure('TNotebook.Tab', foreground='SystemWindowText', background='SystemButtonFace', padding=[10, 5])
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self.style.map('TNotebook.Tab', background=[('selected', 'SystemButtonHighlight')]) # Example map
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# Progressbar and Scrollbar adjustments
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self.style.configure('Horizontal.TProgressbar', background='SystemHighlight', troughcolor='SystemButtonFace', bordercolor='SystemGrayText')
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self.style.configure('TScrollbar', troughcolor='SystemButtonFace', background='SystemScrollbar', bordercolor='SystemGrayText', arrowcolor='SystemWindowText')
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# self.style.map('TScrollbar') # Reset map
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except Exception as e:
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print(f"Error applying light theme: {e}")
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def get_scrolledtext_colors(self):
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"""Returns appropriate background/foreground colors for ScrolledText (light theme defaults)."""
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# Always return light theme defaults now
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try:
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default_bg = self.root.option_get('background', 'Text')
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default_fg = self.root.option_get('foreground', 'Text')
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insert_bg = self.root.option_get('insertBackground', 'Text')
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if not default_bg: default_bg = 'SystemWindow' # Tk default color name
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if not default_fg: default_fg = 'SystemWindowText'
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if not insert_bg: insert_bg = default_fg # Cursor color often matches text
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return {'bg': default_bg, 'fg': default_fg, 'insertbackground': insert_bg}
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except tk.TclError:
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# Fallback if options can't be retrieved
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return {'bg': 'white', 'fg': 'black', 'insertbackground': 'black'} |