theme.py

"""
Theme module for consistent dark/light theme support across all GUIs
"""
import tkinter as tk
from tkinter import ttk


class Theme:
    """Manages application theme settings"""
    
    # Dark theme colors
    DARK = {
        'bg': '#1e1e1e',              # Main background
        'fg': '#d4d4d4',              # Main foreground/text
        'bg_secondary': '#252526',     # Secondary background (frames, etc)
        'bg_tertiary': '#2d2d30',      # Tertiary background (input fields)
        'bg_hover': '#2a2d2e',         # Hover state
        'bg_selected': '#094771',      # Selected items
        'border': '#3e3e42',           # Borders
        'accent': '#0e639c',           # Accent color (buttons)
        'accent_hover': '#1177bb',     # Accent hover
        'text_disabled': '#858585',    # Disabled text
        'text_muted': '#969696',       # Muted/secondary text
        'success': '#4ec9b0',          # Success messages
        'error': '#f48771',            # Error messages
        'warning': '#dcdcaa',          # Warning messages
        'info': '#4fc1ff',             # Info messages
        'log_bg': '#1e1e1e',           # Log/text area background
        'tree_bg': '#252526',          # Treeview background
        'tree_fg': '#d4d4d4',          # Treeview foreground
        'tree_selected': '#094771',    # Treeview selected
        'button_bg': '#0e639c',        # Button background
        'button_fg': '#ffffff',        # Button foreground
        'entry_bg': '#3c3c3c',         # Entry background
        'entry_fg': '#d4d4d4',         # Entry foreground
    }
    
    # Light theme colors
    LIGHT = {
        'bg': '#ffffff',
        'fg': '#000000',
        'bg_secondary': '#f3f3f3',
        'bg_tertiary': '#ffffff',
        'bg_hover': '#e5f3ff',
        'bg_selected': '#0078d4',
        'border': '#d1d1d1',
        'accent': '#0078d4',
        'accent_hover': '#106ebe',
        'text_disabled': '#a0a0a0',
        'text_muted': '#606060',
        'success': '#107c10',
        'error': '#d13438',
        'warning': '#f7630c',
        'info': '#0078d4',
        'log_bg': '#ffffff',
        'tree_bg': '#ffffff',
        'tree_fg': '#000000',
        'tree_selected': '#0078d4',
        'button_bg': '#0078d4',
        'button_fg': '#ffffff',
        'entry_bg': '#ffffff',
        'entry_fg': '#000000',
    }
    
    def __init__(self, root, dark_mode=True):
        self.root = root
        self.dark_mode = dark_mode
        self.colors = self.DARK if dark_mode else self.LIGHT
        self.apply_theme()
    
    def apply_theme(self):
        """Apply the current theme to the root window"""
        colors = self.colors
        
        # Configure root window
        self.root.configure(bg=colors['bg'])
        
        # Create ttk style
        style = ttk.Style()
        
        # Try to use a base theme that works well with dark mode
        try:
            if self.dark_mode:
                # Try clam theme as it's more customizable
                style.theme_use('clam')
            else:
                style.theme_use('clam')
        except:
            pass
        
        # Configure general ttk styles
        style.configure('.',
            background=colors['bg'],
            foreground=colors['fg'],
            bordercolor=colors['border'],
            darkcolor=colors['bg_secondary'],
            lightcolor=colors['bg_secondary'],
            troughcolor=colors['bg_tertiary'],
            fieldbackground=colors['entry_bg'],
            selectbackground=colors['bg_selected'],
            selectforeground=colors['fg'],
            insertcolor=colors['fg']
        )
        
        # Frame styles
        style.configure('TFrame',
            background=colors['bg']
        )
        
        style.configure('TLabelFrame',
            background=colors['bg'],
            foreground=colors['fg'],
            bordercolor=colors['border'],
            relief='solid'
        )
        
        style.configure('TLabelFrame.Label',
            background=colors['bg'],
            foreground=colors['fg']
        )
        
        # Label styles
        style.configure('TLabel',
            background=colors['bg'],
            foreground=colors['fg']
        )
        
        # Button styles
        style.configure('TButton',
            background=colors['bg_tertiary'],
            foreground=colors['fg'],
            bordercolor=colors['border'],
            focuscolor=colors['accent'],
            lightcolor=colors['bg_tertiary'],
            darkcolor=colors['bg_tertiary']
        )
        
        style.map('TButton',
            background=[('active', colors['bg_hover']), ('pressed', colors['bg_selected'])],
            foreground=[('disabled', colors['text_disabled'])]
        )
        
        # Accent button style
        style.configure('Accent.TButton',
            background=colors['accent'],
            foreground=colors['button_fg'],
            bordercolor=colors['accent'],
            focuscolor=colors['accent_hover']
        )
        
        style.map('Accent.TButton',
            background=[('active', colors['accent_hover']), ('pressed', colors['bg_selected'])],
            foreground=[('disabled', colors['text_disabled'])]
        )
        
        # Entry styles
        style.configure('TEntry',
            fieldbackground=colors['entry_bg'],
            background=colors['entry_bg'],
            foreground=colors['entry_fg'],
            bordercolor=colors['border'],
            insertcolor=colors['fg']
        )
        
        style.map('TEntry',
            fieldbackground=[('readonly', colors['bg_secondary'])],
            foreground=[('readonly', colors['text_muted'])]
        )
        
        # Combobox styles
        style.configure('TCombobox',
            fieldbackground=colors['entry_bg'],
            background=colors['entry_bg'],
            foreground=colors['entry_fg'],
            bordercolor=colors['border'],
            arrowcolor=colors['fg'],
            selectbackground=colors['bg_selected'],
            selectforeground=colors['fg']
        )
        
        style.map('TCombobox',
            fieldbackground=[('readonly', colors['entry_bg'])],
            selectbackground=[('readonly', colors['bg_selected'])],
            background=[('readonly', colors['bg_tertiary'])]
        )
        
        # Spinbox styles
        style.configure('TSpinbox',
            fieldbackground=colors['entry_bg'],
            background=colors['entry_bg'],
            foreground=colors['entry_fg'],
            bordercolor=colors['border'],
            arrowcolor=colors['fg']
        )
        
        # Checkbutton styles
        style.configure('TCheckbutton',
            background=colors['bg'],
            foreground=colors['fg'],
            indicatorcolor=colors['entry_bg'],
            bordercolor=colors['border']
        )
        
        style.map('TCheckbutton',
            background=[('active', colors['bg_hover'])],
            indicatorcolor=[('selected', colors['accent'])]
        )
        
        # Radiobutton styles
        style.configure('TRadiobutton',
            background=colors['bg'],
            foreground=colors['fg'],
            indicatorcolor=colors['entry_bg'],
            bordercolor=colors['border']
        )
        
        style.map('TRadiobutton',
            background=[('active', colors['bg_hover'])],
            indicatorcolor=[('selected', colors['accent'])]
        )
        
        # Treeview styles
        style.configure('Treeview',
            background=colors['tree_bg'],
            foreground=colors['tree_fg'],
            fieldbackground=colors['tree_bg'],
            bordercolor=colors['border'],
            relief='flat'
        )
        
        style.configure('Treeview.Heading',
            background=colors['bg_secondary'],
            foreground=colors['fg'],
            bordercolor=colors['border'],
            relief='flat'
        )
        
        style.map('Treeview',
            background=[('selected', colors['tree_selected'])],
            foreground=[('selected', colors['fg'])]
        )
        
        style.map('Treeview.Heading',
            background=[('active', colors['bg_hover'])]
        )
        
        # Notebook (tabs) styles
        style.configure('TNotebook',
            background=colors['bg'],
            bordercolor=colors['border'],
            tabmargins=[2, 5, 2, 0]
        )
        
        style.configure('TNotebook.Tab',
            background=colors['bg_secondary'],
            foreground=colors['fg'],
            bordercolor=colors['border'],
            padding=[10, 2]
        )
        
        style.map('TNotebook.Tab',
            background=[('selected', colors['bg'])],
            foreground=[('selected', colors['fg'])],
            expand=[('selected', [1, 1, 1, 0])]
        )
        
        # Scrollbar styles - improved visibility
        # Make scrollbars more visible with better contrast
        scrollbar_bg = '#4a4a4a' if self.dark_mode else '#c0c0c0'  # Scrollbar thumb color
        scrollbar_hover = '#5a5a5a' if self.dark_mode else '#a0a0a0'  # Hover state
        scrollbar_pressed = '#6a6a6a' if self.dark_mode else '#808080'  # Pressed state
        
        style.configure('TScrollbar',
            background=scrollbar_bg,
            bordercolor=colors['border'],
            troughcolor=colors['bg_tertiary'],
            arrowcolor=colors['fg'],
            relief='flat'
        )
        
        style.map('TScrollbar',
            background=[
                ('pressed', scrollbar_pressed),
                ('active', scrollbar_hover)
            ]
        )
        
        # Progressbar styles
        style.configure('TProgressbar',
            background=colors['accent'],
            troughcolor=colors['bg_tertiary'],
            bordercolor=colors['border']
        )
        
        # Store style for later reference
        self.style = style
    
    def configure_text_widget(self, text_widget, **extra_config):
        """Configure a Text widget with theme colors"""
        config = {
            'bg': self.colors['log_bg'],
            'fg': self.colors['fg'],
            'insertbackground': self.colors['fg'],
            'selectbackground': self.colors['bg_selected'],
            'selectforeground': self.colors['fg'],
            'highlightbackground': self.colors['border'],
            'highlightcolor': self.colors['accent'],
            'relief': 'flat',
            'borderwidth': 1
        }
        config.update(extra_config)
        text_widget.configure(**config)
    
    def configure_listbox(self, listbox, **extra_config):
        """Configure a Listbox widget with theme colors"""
        config = {
            'bg': self.colors['tree_bg'],
            'fg': self.colors['tree_fg'],
            'selectbackground': self.colors['tree_selected'],
            'selectforeground': self.colors['fg'],
            'highlightbackground': self.colors['border'],
            'highlightcolor': self.colors['accent'],
            'relief': 'flat',
            'borderwidth': 1
        }
        config.update(extra_config)
        listbox.configure(**config)
    
    def toggle_theme(self):
        """Toggle between dark and light theme"""
        self.dark_mode = not self.dark_mode
        self.colors = self.DARK if self.dark_mode else self.LIGHT
        self.apply_theme()
        
        # Return the new mode
        return self.dark_mode
    
    def get_color(self, color_name):
        """Get a specific color from the current theme"""
        return self.colors.get(color_name, '#000000')


def apply_theme_to_toplevel(toplevel, theme):
    """Apply theme to a Toplevel window"""
    colors = theme.colors
    toplevel.configure(bg=colors['bg'])