New Demo Program - Theme Color Swatches

DemoPrograms/Demo_Theme_Color_Swatches.py

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+import PySimpleGUI as sg
+
+"""
+    Demo Theme Color Swatches
+    
+    Sometimes when working with themes, it's nice ot know all of the hex values
+    for the theme.  Or, maybe you want to scroll through the list of themes and
+    look at the colors in the theme as groups of color swatches.  Whatever thr
+    reason, this ia good candidate for you.
+    
+    Thie program is interactive.  In addition to showing you the swatches, you can
+    interact with them.  
+    * If you hover with your mouse, you'll get a tooltip popup  that tells you the hex value.  
+    * If you left click, then the value it posted to the clipboard.
+    * If you right click a swatch, then the right clip menu will show you the hex value.
+      If you then select that menu item, it's copied to the clipbard.
+    
+    The code has several examples you may want to try out in your prgorams.  Everything from
+    using "Symbols" to make the swatches, so generating layouts, integrating (optionally) other
+    packages like pyperclip, moving a window based on the size of the window
+    
+    This code's pattern is becoming more widespread lately:
+    * Have a "create_window' function where the layout and Window is defined
+    * Use a "main" program function where the event loop also lives
+    
+    Copyright 2020  PySimpleGUI.org
+"""
+
+# Try and import pyperclip. Save if can be used or not.
+try:
+    import pyperclip
+    pyperclip_available=True
+except:
+    pyperclip_available=False
+
+
+def create_window():
+    # Begin the layout with a header
+    layout = [[sg.Text('Themes as color swatches', text_color='white', background_color='black', font='Default 25')],
+              [sg.Text('Tooltip and right click a color to get the value', text_color='white', background_color='black', font='Default 15')],
+              [sg.Text('Left click a color to copy to clipboard (requires pyperclip)', text_color='white', background_color='black', font='Default 15')]]
+    layout =[[sg.Column(layout, element_justification='c', background_color='black')]]
+    # Create the pain part, the rows of Text with color swatches
+    for i, theme in enumerate(sg.theme_list()):
+        sg.theme(theme)
+        colors = [sg.theme_background_color(), sg.theme_text_color(), sg.theme_input_background_color(),
+                  sg.theme_input_text_color()]
+        if sg.theme_button_color() != sg.COLOR_SYSTEM_DEFAULT:
+            colors.append(sg.theme_button_color()[0])
+            colors.append(sg.theme_button_color()[1])
+        colors = list(set(colors))      # de-duplicate items
+        row = [sg.T(sg.theme(), background_color='black', text_color='white',  size=(20,1), justification='r')]
+        for color in colors:
+            if color != sg.COLOR_SYSTEM_DEFAULT:
+                row.append(sg.T(sg.SYMBOL_SQUARE, text_color=color, background_color='black', pad=(0,0), font='DEFAUlT 20', right_click_menu=['Nothing',[color]], tooltip=color, enable_events=True, key=(i,color)))
+        layout += [row]
+    # finish the layout by adding an exit button
+    layout += [[sg.B('Exit')]]
+    # place layout inside of a Column so that it's scrollable
+    layout = [[sg.Column(layout, scrollable=True,vertical_scroll_only=True,  background_color='black')]]
+    # create and return Window that uses the layout
+    return sg.Window('Theme Color Swatches', layout, background_color='black', finalize=True)
+
+
+
+def main():
+    sg.popup_quick_message('This is going to take a minute...', text_color='white', background_color='red', font='Default 20')
+    window = create_window()
+    sg.theme(sg.OFFICIAL_PYSIMPLEGUI_THEME)
+    if window.size[1] > 100:
+        window.size = (window.size[0], 1000)
+    window.move(window.get_screen_size()[0]//2-window.size[0]//2, window.get_screen_size()[1]//2-500)
+
+    while True:             # Event Loop
+        event, values = window.read()
+        print(event, values)
+        if event == sg.WIN_CLOSED or event == 'Exit':
+            break
+        if isinstance(event, tuple):       # someone clicked a swatch
+            chosen_color = event[1]
+        else:
+            if event[0] == '#':  # someone right clicked
+                chosen_color = event
+            else:
+                chosen_color = ''
+
+        if pyperclip_available:
+            pyperclip.copy(chosen_color)
+            sg.popup_auto_close(f'{chosen_color}\nColor copied to clipboard', auto_close_duration=1)
+        else:
+            sg.popup_auto_close(f'pyperclip not installed\nPlease install pyperclip', auto_close_duration=3)
+
+    window.close()
+
+if __name__ == '__main__':
+    main()