Use launcher.conf.json for user color palette configuration

Author: relic-se

src/code.py

@@ -9,7 +9,6 @@
 import json
 import math
 import displayio
-import os
 import supervisor
 import sys
 import terminalio
@@ -53,21 +52,20 @@
     print(f"launching: {next_code_file}")
     supervisor.reload()
 
-# read environment variables
-color_palette = {
-    "bg":     os.getenv("FRUIT_JAM_OS_BG",     0x222222),
-    "fg":     os.getenv("FRUIT_JAM_OS_FG",     0xffffff),
-    "accent": os.getenv("FRUIT_JAM_OS_ACCENT", 0x008800),
-    "arrow":  os.getenv("FRUIT_JAM_OS_ARROW",  -1),
-}
-
 request_display_config(720, 400)
 display = supervisor.runtime.display
 
 scale = 1
 if display.width > 360:
     scale = 2
 
+launcher_config = {}
+if pathlib.Path("launcher.conf.json").exists():
+    with open("launcher.conf.json", "r") as f:
+        launcher_config = json.load(f)
+if "palette" not in launcher_config:
+    launcher_config["palette"] = {}
+
 font_file = "/fonts/terminal.lvfontbin"
 font = bitmap_font.load_font(font_file)
 scaled_group = displayio.Group(scale=scale)
@@ -79,7 +77,7 @@
 
 background_bmp = displayio.Bitmap(display.width, display.height, 1)
 bg_palette = displayio.Palette(1)
-bg_palette[0] = color_palette["bg"]
+bg_palette[0] = int(launcher_config["palette"].get("bg", "0x222222"), 16)
 bg_tg = displayio.TileGrid(bitmap=background_bmp, pixel_shader=bg_palette)
 scaled_group.append(bg_tg)
 
@@ -97,11 +95,6 @@
 mouse_tg.y = display.height // (2 * scale)
 # 046d:c52f
 
-launcher_config = {}
-if pathlib.Path("launcher.conf.json").exists():
-    with open("launcher.conf.json", "r") as f:
-        launcher_config = json.load(f)
-
 # mouse = usb.core.find(idVendor=0x046d, idProduct=0xc52f)
 
 DIR_IN = 0x80
@@ -193,7 +186,7 @@
                        divider_lines=False)
 scaled_group.append(menu_grid)
 
-menu_title_txt = Label(font, text="Fruit Jam OS", color=color_palette["fg"])
+menu_title_txt = Label(font, text="Fruit Jam OS", color=int(launcher_config["palette"].get("fg", "0xffffff"), 16))
 menu_title_txt.anchor_point = (0.5, 0.5)
 menu_title_txt.anchored_position = (display.width // (2 * scale), 2)
 scaled_group.append(menu_title_txt)
@@ -277,7 +270,7 @@ def _create_cell_group(app):
 
     icon_tg.x = cell_width // 2 - icon_tg.tile_width // 2
     title_txt = TextBox(font, text=app["title"], width=WIDTH // config["width"], height=18,
-                        align=TextBox.ALIGN_CENTER, color=color_palette["fg"])
+                        align=TextBox.ALIGN_CENTER, color=int(launcher_config["palette"].get("fg", "0xffffff"), 16))
     cell_group.append(title_txt)
     title_txt.anchor_point = (0, 0)
     title_txt.anchored_position = (0, icon_tg.y + icon_tg.tile_height)
@@ -298,7 +291,7 @@ def _reuse_cell_group(app, cell_group):
 
     icon_tg.x = cell_width // 2 - icon_tg.tile_width // 2
     # title_txt = TextBox(font, text=app["title"], width=WIDTH // config["width"], height=18,
-    #                     align=TextBox.ALIGN_CENTER, color=color_palette["fg"])
+    #                     align=TextBox.ALIGN_CENTER, color=int(launcher_config["palette"].get("fg", "0xffffff"), 16))
     # cell_group.append(title_txt)
     title_txt = cell_group[1]
     title_txt.text = app["title"]
@@ -347,7 +340,7 @@ def display_page(page_index):
         print(f"{grid_index} | {grid_index % config["width"], grid_index // config["width"]}")
 
 
-page_txt = Label(terminalio.FONT, text="", scale=2, color=color_palette["fg"])
+page_txt = Label(terminalio.FONT, text="", scale=2, color=int(launcher_config["palette"].get("fg", "0xffffff"), 16))
 page_txt.anchor_point = (1.0, 1.0)
 page_txt.anchored_position = (display.width - 2, display.height - 2)
 main_group.append(page_txt)
@@ -359,8 +352,8 @@ def display_page(page_index):
 left_palette.make_transparent(0)
 right_bmp, right_palette = adafruit_imageload.load("launcher_assets/arrow_right.bmp")
 right_palette.make_transparent(0)
-if color_palette["arrow"] >= 0:
-    left_palette[2] = right_palette[2] = color_palette["arrow"]
+if "arrow" in launcher_config["palette"]:
+    left_palette[2] = right_palette[2] = int(launcher_config["palette"].get("arrow"), 16)
 
 left_tg = AnchoredTileGrid(bitmap=left_bmp, pixel_shader=left_palette)
 left_tg.anchor_point = (0, 0.5)
@@ -383,8 +376,8 @@ def display_page(page_index):
 
 
 help_txt = Label(terminalio.FONT, text="[Arrow]: Move\n[E]:     Edit\n[Enter]:  Run\n[1-9]:   Page",
-                 color=color_palette["fg"])
-# help_txt = TextBox(terminalio.FONT, width=88, height=30, align=TextBox.ALIGN_RIGHT, background_color=color_palette["accent"], text="[E]: Edit\n[Enter]:  Run")
+                 color=int(launcher_config["palette"].get("fg", "0xffffff"), 16))
+# help_txt = TextBox(terminalio.FONT, width=88, height=30, align=TextBox.ALIGN_RIGHT, background_color=int(launcher_config["palette"].get("accent", "0x008800"), 16), text="[E]: Edit\n[Enter]:  Run")
 help_txt.anchor_point = (0, 0)
 
 help_txt.anchored_position = (2, 2)
@@ -421,10 +414,10 @@ def change_selected(new_selected):
 
     # tuple means an item in the grid is selected
     if isinstance(new_selected, tuple):
-        menu_grid.get_content(new_selected)[1].background_color = color_palette["accent"]
+        menu_grid.get_content(new_selected)[1].background_color = int(launcher_config["palette"].get("accent", "0x008800"), 16)
     # TileGrid means arrow is selected
     elif isinstance(new_selected, AnchoredTileGrid):
-        new_selected.pixel_shader[2] = color_palette["accent"]
+        new_selected.pixel_shader[2] = int(launcher_config["palette"].get("accent", "0x008800"), 16)
     selected = new_selected
 
 
@@ -540,7 +533,7 @@ def handle_key_press(key):
 
         handle_key_press(c)
         print("selected", selected)
-        # app_titles[selected].background_color = color_palette["accent"]
+        # app_titles[selected].background_color = int(launcher_config["palette"].get("accent", "0x008800"), 16)
 
     if mouse:
         try:

src/settings.toml

@@ -1,5 +1 @@
 CIRCUITPY_PYSTACK_SIZE=4000
-# FRUIT_JAM_OS_BG=0x222222
-# FRUIT_JAM_OS_FG=0xffffff
-# FRUIT_JAM_OS_ACCENT=0x008800
-# FRUIT_JAM_OS_ARROW=0x004abe