无法在模块路径中找到主题引擎:“pixmap”

本文详细介绍了在Ubuntu 11.10环境下,安装gnome-pie后遇到的无法在模块路径中找到主题引擎:“pixmap”的警告问题及解决方法。通过安装gtk2-engines-pixbuf,可以有效解决这一问题,确保gnome-pie正常启动。

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                 在ubutu11.10下安装gnome-pie后, 我启动时, 终端出现这样的信息:无法在模块路径中找到主题引擎:“pixmap”;

              原来ubutu中, 在使用新得立安装软件的“详情”里,或用终端里安装软件或运行软件的是候,会出现 无法在模块路径中找到主题引擎“pixmap”这样 的警告提示,有时候,并不是很妨碍我们

             出现这个问题的原因是gtk引擎出现了故障, 多数情况下是其他软件包与之冲突后被卸载。因此,解决的办法很简单, 安装gtk引擎(gtk2-engines-pixbuf).

             在终端输入 :sudo apt-get install gtk2-engines-pixbuf 即可;



import sys import json import cv2 import numpy as np import requests import os from PyQt5.QtCore import Qt, QTimer, pyqtSignal, QObject, QThread from PyQt5.QtGui import QImage, QPixmap from PyQt5.QtWidgets import (QWidget, QLabel, QPushButton, QTextEdit, QHBoxLayout, QVBoxLayout, QSplitter, QApplication, QMessageBox) from caipanconnect import * SERVER_IP = "192.168.1.88" client = RefereeBoxClient(SERVER_IP, 6666) if not client.connect(): exit(1) # 信号类 - 用于线程间通信 class SignalEmitter(QObject): new_data = pyqtSignal(dict) # 工作线程 - 运行Flask应用 class FlaskThread(QThread): def __init__(self, flask_run_func): super().__init__() self.flask_run_func = flask_run_func self.emitter = SignalEmitter() def run(self): self.flask_run_func() # 调用Flask运行函数 def stop(self): """安全停止Flask""" if self.isRunning(): self.quit() self.wait(1000) # 等待1秒 if self.isRunning(): self.terminate() self.wait() class VideoThread(QThread): change_pixmap_signal = pyqtSignal(QImage) def __init__(self, url): super().__init__() self.url = url self.running = True self.session = requests.Session() def run(self): while(1): try: response = self.session.get(self.url, stream=True, timeout=10) if response.status_code != 200: return content_type = response.headers['Content-Type'] boundary = content_type.split('=')[1].encode() data_buffer = b'' for chunk in response.iter_content(chunk_size=8192): if not self.running: break data_buffer += chunk a = data_buffer.find(b'\r\n--' + boundary + b'\r\n') b = data_buffer.find(b'\r\n--' + boundary + b'--') if a != -1: if b == -1: frame_data = data_buffer[:a] data_buffer = data_buffer[a + len(b'\r\n--' + boundary + b'\r\n'):] else: frame_data = data_buffer[:b] data_buffer = b'' start = frame_data.find(b'\r\n\r\n') + 4 image_data = frame_data[start:] qimg = QImage.fromData(image_data) if not qimg.isNull(): self.change_pixmap_signal.emit(qimg) except Exception as e: print(f"Video stream error: {e}") def stop(self): self.running = False self.session.close() # 关闭请求会话 #self.wait(2000) # 等待2秒 if self.isRunning(): self.terminate() # 强制终止 self.wait() class MainWindow(QWidget): def __init__(self, data_queue): super().__init__() self.data_queue = data_queue self.setWindowTitle("Robocup") # 增大窗口的最小尺寸 self.setMinimumSize(1200, 800) self.textbutton = False self.should_clear_queue = False self.should_clear_queueimg = False self.video_thread = None self.desktop_path = os.path.join(os.path.expanduser('~'), 'Desktop', 'results_r') self.detection_result = [] self.detnum=0 self.detresultnum=[] self.signal=False # 创建Flask线程 from flasksignal import run_flask_app self.flask_thread = FlaskThread(run_flask_app) self.flask_thread.emitter.new_data.connect(self.update_display) self.flask_thread.start() self.should_clear_queue = True # 初始化UI self.init_ui() # 启动定时器检查数据队列 self.timer = QTimer(self) self.timer.timeout.connect(self.check_data_queue) self.timer.start(0) self._auto_started = False # 连接窗口显示事件 self.showEvent = self.window_shown def window_shown(self,event): if not self._auto_started: self._auto_started = True self.auto_start() return super().showEvent(event) def auto_start(self): self.start_flask_thread() def init_ui(self): # 创建主布局 main_layout = QHBoxLayout(self) # 创建左侧Splitter left_splitter = QSplitter(Qt.Vertical) self.image_label = QLabel("图像显示区域") self.image_label.setAlignment(Qt.AlignCenter) # 更改图像显示区域的背景颜色 self.image_label.setStyleSheet("background-color: #e0e0e0; border: 2px solid #888;") # 按钮区域 button_splitter = QSplitter(Qt.Horizontal) self.show_image_btn = QPushButton("展示图像") self.end_image_btn = QPushButton("结束图像") # 优化按钮的样式,增大按钮大小和文字大小 self.show_image_btn.setStyleSheet("background-color: #4CAF50; color: white; font-size: 18px; padding: 10px;") self.end_image_btn.setStyleSheet("background-color: #F44336; color: white; font-size: 18px; padding: 10px;") self.show_image_btn.setMaximumHeight(60) self.end_image_btn.setMaximumHeight(60) button_splitter.addWidget(self.show_image_btn) button_splitter.addWidget(self.end_image_btn) left_splitter.addWidget(self.image_label) left_splitter.addWidget(button_splitter) # 扩大显示界面的位置比例 left_splitter.setSizes([600, 60]) # 创建右侧区域 right_widget = QWidget() right_layout = QVBoxLayout(right_widget) self.text_edit = QTextEdit() self.text_edit.setReadOnly(True) # 更改文本编辑区域的样式,背景设为黑色,文字设为白色,增大文字大小 self.text_edit.setStyleSheet("background-color: #000000; color: #ffffff; border: 2px solid #888; font-size: 16px;") right_layout.addWidget(self.text_edit) button_layout = QHBoxLayout() self.end_btn = QPushButton("开始") self.start_btn = QPushButton("结束") self.force_quit_btn = QPushButton("退出") # 优化按钮的样式,增大按钮大小和文字大小 self.end_btn.setStyleSheet("background-color: #2196F3; color: white; font-size: 18px; padding: 10px;") self.start_btn.setStyleSheet("background-color: #FF9800; color: white; font-size: 18px; padding: 10px;") self.force_quit_btn.setStyleSheet("background-color: #ff4444; color: white; font-size: 18px; padding: 10px;") button_layout.addWidget(self.end_btn) button_layout.addWidget(self.start_btn) button_layout.addWidget(self.force_quit_btn) right_layout.addLayout(button_layout) # 将左右区域添加到主布局 main_splitter = QSplitter(Qt.Horizontal) main_splitter.addWidget(left_splitter) main_splitter.addWidget(right_widget) # 扩大显示界面的位置比例 main_splitter.setSizes([800, 400]) main_layout.addWidget(main_splitter) # 连接按钮点击事件 self.end_btn.clicked.connect(self.start_flask_thread) self.start_btn.clicked.connect(self.set_clear_queue_flag) self.show_image_btn.clicked.connect(self.start_flask_threadimg) self.end_image_btn.clicked.connect(self.set_clear_queue_flagimg) self.force_quit_btn.clicked.connect(self.force_quit) def start_flask_threadimg(self): self.should_clear_queueimg = True self.signal=True if self.video_thread is None : self.video_thread = VideoThread("http://127.0.0.1:5002/") self.video_thread.change_pixmap_signal.connect(self.update_image) self.video_thread.start() if not self.video_thread.isRunning(): self.video_thread.change_pixmap_signal.connect(self.update_image) self.video_thread.start() def set_clear_queue_flagimg(self): self.should_clear_queueimg = False if self.video_thread: self.image_label.clear() def start_flask_thread(self): team_id = "eeem001" client.send_team_id(team_id) time.sleep(0.1) # 给服务器处理时间 self.should_clear_queue = False self.signal=True self.start_flask_threadimg() if not self.flask_thread.isRunning(): self.flask_thread.start() def set_clear_queue_flag(self): self.should_clear_queue = True def check_data_queue(self): if self.should_clear_queue: while not self.data_queue.empty(): self.data_queue.get() else: while not self.data_queue.empty(): data = self.data_queue.get() self.flask_thread.emitter.new_data.emit(data) def update_display(self, data): self.detection_result.append(data) if data["state"]=="last" : self.detnum=self.detnum+1 print( self.detnum) if self.detnum==100: #print(self.detection_result) for it in self.detection_result: if self.detresultnum==None: self.detresultnum.append({"ID":it["ID"],"num":it["num"]}) else: flag=0 for itnum in self.detresultnum: if itnum["ID"]==it["ID"]: itnum["num"]=itnum["num"]+it["num"] flag=1 if flag==0: self.detresultnum.append({"ID":it["ID"],"num":it["num"]}) #content=self.text_edit.toPlainText() #print(content) #if not content.strip(): self.text_edit.clear() for it in self.detresultnum: import math #print(it["num"]) it["num"]=(it["num"]/(self.detnum+1)) integer_part=int(it["num"]) dec_part=it["num"]-integer_part if dec_part<0.15: it["num"]=int(it["num"]) else: it["num"]=int(it["num"]+1) if it["num"]==0: continue #self.text_edit.append("目标ID:" + it["ID"] + " 数量:" + str(it["num"])) self.text_edit.append(f"目标ID:{it['ID']} 数量:{it['num']}") self.text_edit.moveCursor(self.text_edit.textCursor().End) self.save_txt() #signal = 1 #self.force_quit() #try: #self.client.connect() #file_path = os.path.join(self.desktop_path, "shdjxy-team-Rx.txt") #with open(file_path,'r',encoding='utf-8') as f: # print(f.read()) #self.client.send_file(file_path, data_type=1) #finally: # import time # time.sleep(0.3) # self.client.close() #写入文件,在桌面文件夹里 ---在update-data中 #写入属性self.datalast+传来的string---在update-data中 #如果为state==last 就是最后一次---在update-data中 def update_image(self, qimg): if self.should_clear_queueimg: pixmap = QPixmap.fromImage(qimg) self.image_label.setPixmap( pixmap.scaled(self.image_label.size(), Qt.KeepAspectRatio, Qt.SmoothTransformation)) def force_quit(self): reply = QMessageBox.question( self, '确认退出', "确定要退出所有程序吗?", QMessageBox.Yes | QMessageBox.No, QMessageBox.No ) if reply == QMessageBox.Yes: # 停止视频线程 if hasattr(self, 'video_thread') and self.video_thread: self.video_thread.stop() #self.video_thread.wait() # 停止Flask线程 if hasattr(self, 'flask_thread') and self.flask_thread.isRunning(): self.flask_thread.stop() # 强制退出应用 QApplication.quit() def save_txt(self): os.makedirs(self.desktop_path, exist_ok=True) file_name = f"shdjxy-team-Rx.txt" file_path = os.path.join(self.desktop_path,file_name) with open(file_path,'w',encoding='utf-8') as f: f.write("START\n") for result in self.detresultnum: if result["num"]==0: continue line = f"Goal_ID={result['ID']};Num={result['num']}" f.write(line+"\n") f.write("END") self.detection_result=[] self.detnum=0 self.detresultnum=[] self.set_clear_queue_flag() file_path = r"/home/HwHiAiUser/Desktop/results_r/shdjxy-team-Rx.txt" client.send_file(file_path, data_type=1) time.sleep(0.1) client.close() if __name__ == "__main__": app = QApplication(sys.argv) from queue import Queue data_queue = Queue() window = MainWindow(data_queue) window.show() sys.exit(app.exec_()) 写出软件界面及功能说明。
最新发布
07-30
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