#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""
简单的2D GUI测试
基于ShowBase直接测试2D GUI组件显示
"""

import warnings
warnings.filterwarnings("ignore", category=DeprecationWarning)

from direct.showbase.ShowBase import ShowBase
from direct.gui.DirectGui import *
from panda3d.core import *
import os

class SimpleGUITest(ShowBase):
    def __init__(self):
        ShowBase.__init__(self)
        
        # 设置背景色
        self.setBackgroundColor(0.2, 0.2, 0.3)
        
        # 尝试加载中文字体
        self.chinese_font = self.loadChineseFont()
        
        # 创建测试GUI元素
        self.createTestGUI()
        
        print("简单GUI测试启动成功!")
        print(f"中文字体加载状态: {'成功' if self.chinese_font else '失败，使用默认字体'}")
        
    def loadChineseFont(self):
        """尝试加载中文字体"""
        font_paths = [
            '/usr/share/fonts/truetype/wqy/wqy-microhei.ttc',
            '/usr/share/fonts/truetype/wqy/wqy-zenhei.ttc'
        ]
        
        for font_path in font_paths:
            if os.path.exists(font_path):
                try:
                    font = self.loader.loadFont(font_path)
                    if font:
                        return font
                except:
                    continue
        return None
    
    def createTestGUI(self):
        """创建测试GUI元素"""
        print("\n=== 创建2D GUI测试元素 ===")
        
        # 标题
        self.title = OnscreenText(
            text="2D GUI 修复测试",
            pos=(0, 0.9),
            scale=0.08,
            fg=(1, 1, 1, 1),
            align=TextNode.ACenter,
            font=self.chinese_font if self.chinese_font else None
        )
        
        # 测试修复后的坐标转换
        test_positions = [
            ("中心", (0, 0, 0)),
            ("左侧", (-5, 0, 0)), 
            ("右侧", (5, 0, 0)),
            ("上方", (0, 0, 5)),
            ("下方", (0, 0, -5))
        ]
        
        self.buttons = []
        self.labels = []
        
        for i, (name, logical_pos) in enumerate(test_positions):
            # 应用修复后的坐标转换
            screen_pos = (logical_pos[0] * 0.1, 0, logical_pos[2] * 0.1)
            
            print(f"创建 {name} GUI元素:")
            print(f"  逻辑坐标: {logical_pos}")
            print(f"  屏幕坐标: {screen_pos}")
            
            # 创建按钮
            button = DirectButton(
                text=f"{name}按钮",
                pos=screen_pos,
                scale=0.08,
                command=self.onButtonClick,
                extraArgs=[name],
                frameColor=(0.2, 0.6, 0.8, 1),
                text_font=self.chinese_font if self.chinese_font else None,
                rolloverSound=None,
                clickSound=None
            )
            self.buttons.append(button)
            
            # 创建标签（偏移位置）
            label_pos = (screen_pos[0], 0, screen_pos[2] - 0.15)
            label = DirectLabel(
                text=f"{name}标签",
                pos=label_pos,
                scale=0.06,
                frameColor=(0, 0, 0, 0),
                text_fg=(1, 1, 0, 1),
                text_font=self.chinese_font if self.chinese_font else None
            )
            self.labels.append(label)
            
            print(f"  按钮已创建在: {screen_pos}")
            print(f"  标签已创建在: {label_pos}")
        
        # 创建输入框
        self.entry = DirectEntry(
            text="",
            pos=(0, 0, -0.7),
            scale=0.06,
            command=self.onEntrySubmit,
            initialText="测试输入框",
            numLines=1,
            width=15,
            focus=0
        )
        
        print(f"输入框已创建在: (0, 0, -0.7)")
        
        # 创建退出按钮
        self.exitButton = DirectButton(
            text="退出测试",
            pos=(0, 0, -0.85),
            scale=0.06,
            command=self.exitTest,
            frameColor=(0.8, 0.2, 0.2, 1),
            text_font=self.chinese_font if self.chinese_font else None
        )
        
        # 状态信息
        self.statusText = OnscreenText(
            text="如果你能看到5个按钮和5个标签，说明2D GUI修复成功!",
            pos=(0, -0.95),
            scale=0.04,
            fg=(0, 1, 0, 1),
            align=TextNode.ACenter,
            font=self.chinese_font if self.chinese_font else None
        )
        
        print("=== 所有GUI元素创建完成 ===")
        print("如果修复成功，你应该看到:")
        print("- 5个不同位置的按钮（中心、左侧、右侧、上方、下方）")
        print("- 5个对应的标签")
        print("- 1个输入框")
        print("- 1个退出按钮")
    
    def onButtonClick(self, name):
        """按钮点击事件"""
        print(f"✓ 按钮点击测试成功: {name}")
        self.statusText.setText(f"点击了 {name} 按钮 - 测试成功!")
    
    def onEntrySubmit(self, text):
        """输入框提交事件"""
        print(f"✓ 输入框测试成功: {text}")
        self.statusText.setText(f"输入框内容: {text}")
    
    def exitTest(self):
        """退出测试"""
        print("退出简单GUI测试")
        self.userExit()

if __name__ == "__main__":
    print("启动简单2D GUI测试...")
    print("这个测试使用ShowBase基类，应该能正确显示2D GUI组件")
    app = SimpleGUITest()
    app.run()