import tkinter as tk
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from tkinter import ttk, filedialog, messagebox
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from PIL import Image
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import os
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import tempfile
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import sys
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from LVGLImage import LVGLImage, ColorFormat, CompressMethod
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HELP_TEXT = """LVGL图片转换工具使用说明：
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1. 添加文件：点击“添加文件”按钮选择需要转换的图片，支持批量导入
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2. 移除文件：在列表中选中文件前的复选框“[ ]”（选中后会变成“[√]”），点击“移除选中”可删除选定文件
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3. 设置分辨率：选择需要的分辨率，如128x128
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建议根据自己的设备的屏幕分辨率来选择。过大和过小都会影响显示效果。
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4. 颜色格式：选择“自动识别”会根据图片是否透明自动选择，或手动指定
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除非你了解这个选项，否则建议使用自动识别，不然可能会出现一些意想不到的问题……
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5. 压缩方式：选择NONE或RLE压缩
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除非你了解这个选项，否则建议保持默认NONE不压缩
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6. 输出目录：设置转换后文件的保存路径
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默认为程序所在目录下的output文件夹
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7. 转换：点击“转换全部”或“转换选中”开始转换
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"""
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class ImageConverterApp:
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def __init__(self, root):
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self.root = root
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self.root.title("LVGL图片转换工具")
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self.root.geometry("750x650")
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# 初始化变量
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self.output_dir = tk.StringVar(value=os.path.abspath("output"))
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self.resolution = tk.StringVar(value="128x128")
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self.color_format = tk.StringVar(value="自动识别")
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self.compress_method = tk.StringVar(value="NONE")
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# 创建UI组件
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self.create_widgets()
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self.redirect_output()
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def create_widgets(self):
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# 参数设置框架
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settings_frame = ttk.LabelFrame(self.root, text="转换设置")
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settings_frame.grid(row=0, column=0, padx=10, pady=5, sticky="ew")
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# 分辨率设置
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ttk.Label(settings_frame, text="分辨率:").grid(row=0, column=0, padx=2)
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ttk.Combobox(settings_frame, textvariable=self.resolution,
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values=["512x512", "256x256", "128x128", "64x64", "32x32"], width=8).grid(row=0, column=1, padx=2)
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# 颜色格式
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ttk.Label(settings_frame, text="颜色格式:").grid(row=0, column=2, padx=2)
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ttk.Combobox(settings_frame, textvariable=self.color_format,
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values=["自动识别", "RGB565", "RGB565A8"], width=10).grid(row=0, column=3, padx=2)
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# 压缩方式
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ttk.Label(settings_frame, text="压缩方式:").grid(row=0, column=4, padx=2)
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ttk.Combobox(settings_frame, textvariable=self.compress_method,
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values=["NONE", "RLE"], width=8).grid(row=0, column=5, padx=2)
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# 文件操作框架
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file_frame = ttk.LabelFrame(self.root, text="选取文件")
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file_frame.grid(row=1, column=0, padx=10, pady=5, sticky="nsew")
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# 文件操作按钮
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btn_frame = ttk.Frame(file_frame)
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btn_frame.pack(fill=tk.X, pady=2)
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ttk.Button(btn_frame, text="添加文件", command=self.select_files).pack(side=tk.LEFT, padx=2)
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ttk.Button(btn_frame, text="移除选中", command=self.remove_selected).pack(side=tk.LEFT, padx=2)
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ttk.Button(btn_frame, text="清空列表", command=self.clear_files).pack(side=tk.LEFT, padx=2)
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# 文件列表（Treeview）
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self.tree = ttk.Treeview(file_frame, columns=("selected", "filename"),
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show="headings", height=10)
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self.tree.heading("selected", text="选择", anchor=tk.W)
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self.tree.heading("filename", text="文件名", anchor=tk.W)
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self.tree.column("selected", width=60, anchor=tk.W)
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self.tree.column("filename", width=600, anchor=tk.W)
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self.tree.pack(fill=tk.BOTH, expand=True)
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self.tree.bind("<ButtonRelease-1>", self.on_tree_click)
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# 输出目录
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output_frame = ttk.LabelFrame(self.root, text="输出目录")
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output_frame.grid(row=2, column=0, padx=10, pady=5, sticky="ew")
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ttk.Entry(output_frame, textvariable=self.output_dir, width=60).pack(side=tk.LEFT, padx=5)
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ttk.Button(output_frame, text="浏览", command=self.select_output_dir).pack(side=tk.RIGHT, padx=5)
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# 转换按钮和帮助按钮
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convert_frame = ttk.Frame(self.root)
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convert_frame.grid(row=3, column=0, padx=10, pady=10)
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ttk.Button(convert_frame, text="转换全部文件", command=lambda: self.start_conversion(True)).pack(side=tk.LEFT, padx=5)
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ttk.Button(convert_frame, text="转换选中文件", command=lambda: self.start_conversion(False)).pack(side=tk.LEFT, padx=5)
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ttk.Button(convert_frame, text="帮助", command=self.show_help).pack(side=tk.RIGHT, padx=5)
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# 日志区域（新增清空按钮部分）
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log_frame = ttk.LabelFrame(self.root, text="日志")
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log_frame.grid(row=4, column=0, padx=10, pady=5, sticky="nsew")
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# 添加按钮框架
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log_btn_frame = ttk.Frame(log_frame)
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log_btn_frame.pack(fill=tk.X, side=tk.BOTTOM)
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# 清空日志按钮
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ttk.Button(log_btn_frame, text="清空日志", command=self.clear_log).pack(side=tk.RIGHT, padx=5, pady=2)
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self.log_text = tk.Text(log_frame, height=15)
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self.log_text.pack(fill=tk.BOTH, expand=True)
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# 布局配置
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self.root.columnconfigure(0, weight=1)
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self.root.rowconfigure(1, weight=1)
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self.root.rowconfigure(4, weight=1)
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def clear_log(self):
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"""清空日志内容"""
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self.log_text.delete(1.0, tk.END)
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def show_help(self):
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messagebox.showinfo("帮助", HELP_TEXT)
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def redirect_output(self):
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class StdoutRedirector:
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def __init__(self, text_widget):
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self.text_widget = text_widget
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self.original_stdout = sys.stdout
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def write(self, message):
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self.text_widget.insert(tk.END, message)
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self.text_widget.see(tk.END)
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self.original_stdout.write(message)
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def flush(self):
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self.original_stdout.flush()
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sys.stdout = StdoutRedirector(self.log_text)
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def on_tree_click(self, event):
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region = self.tree.identify("region", event.x, event.y)
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if region == "cell":
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col = self.tree.identify_column(event.x)
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item = self.tree.identify_row(event.y)
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if col == "#1": # 点击的是选中列
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current_val = self.tree.item(item, "values")[0]
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new_val = "[√]" if current_val == "[ ]" else "[ ]"
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self.tree.item(item, values=(new_val, self.tree.item(item, "values")[1]))
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def select_output_dir(self):
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path = filedialog.askdirectory()
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if path:
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self.output_dir.set(path)
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def select_files(self):
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files = filedialog.askopenfilenames(filetypes=[("图片文件", "*.png;*.jpg;*.jpeg;*.bmp;*.gif")])
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for f in files:
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self.tree.insert("", tk.END, values=("[ ]", os.path.basename(f)), tags=(f,))
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def remove_selected(self):
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to_remove = []
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for item in self.tree.get_children():
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if self.tree.item(item, "values")[0] == "[√]":
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to_remove.append(item)
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for item in reversed(to_remove):
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self.tree.delete(item)
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def clear_files(self):
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for item in self.tree.get_children():
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self.tree.delete(item)
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def start_conversion(self, convert_all):
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input_files = [
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self.tree.item(item, "tags")[0]
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for item in self.tree.get_children()
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if convert_all or self.tree.item(item, "values")[0] == "[√]"
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]
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if not input_files:
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msg = "没有找到可转换的文件" if convert_all else "没有选中任何文件"
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messagebox.showwarning("警告", msg)
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return
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os.makedirs(self.output_dir.get(), exist_ok=True)
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# 解析转换参数
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width, height = map(int, self.resolution.get().split('x'))
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compress = CompressMethod.RLE if self.compress_method.get() == "RLE" else CompressMethod.NONE
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# 执行转换
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self.convert_images(input_files, width, height, compress)
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def convert_images(self, input_files, width, height, compress):
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success_count = 0
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total_files = len(input_files)
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for idx, file_path in enumerate(input_files):
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try:
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print(f"正在处理: {os.path.basename(file_path)}")
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with Image.open(file_path) as img:
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# 调整图片大小
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img = img.resize((width, height), Image.Resampling.LANCZOS)
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# 处理颜色格式
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color_format_str = self.color_format.get()
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if color_format_str == "自动识别":
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# 检测透明通道
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has_alpha = img.mode in ('RGBA', 'LA') or (img.mode == 'P' and 'transparency' in img.info)
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if has_alpha:
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img = img.convert('RGBA')
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cf = ColorFormat.RGB565A8
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else:
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img = img.convert('RGB')
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cf = ColorFormat.RGB565
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else:
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if color_format_str == "RGB565A8":
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img = img.convert('RGBA')
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cf = ColorFormat.RGB565A8
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else:
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img = img.convert('RGB')
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cf = ColorFormat.RGB565
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# 保存调整后的图片
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base_name = os.path.splitext(os.path.basename(file_path))[0]
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output_image_path = os.path.join(self.output_dir.get(), f"{base_name}_{width}x{height}.png")
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img.save(output_image_path, 'PNG')
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# 创建临时文件
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with tempfile.NamedTemporaryFile(suffix=".png", delete=False) as tmpfile:
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temp_path = tmpfile.name
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img.save(temp_path, 'PNG')
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# 转换为LVGL C数组
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lvgl_img = LVGLImage().from_png(temp_path, cf=cf)
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output_c_path = os.path.join(self.output_dir.get(), f"{base_name}.c")
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lvgl_img.to_c_array(output_c_path, compress=compress)
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success_count += 1
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os.unlink(temp_path)
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print(f"成功转换: {base_name}.c\n")
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except Exception as e:
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print(f"转换失败: {str(e)}\n")
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print(f"转换完成! 成功 {success_count}/{total_files} 个文件\n")
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if __name__ == "__main__":
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root = tk.Tk()
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app = ImageConverterApp(root)
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root.mainloop()
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