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import sys
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from PyQt5.QtWidgets import QApplication, QWidget, QVBoxLayout, QTextEdit, QDesktopWidget, QScrollBar
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from PyQt5.QtCore import QTimer
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from PyQt5.QtGui import QFont
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class TypewriterEffectApp(QWidget):
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def __init__(self, filepaths):
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super().__init__()
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self.filepaths = filepaths
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self.userIsScrolling = False
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self.initUI()
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self.startTyping()
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def initUI(self):
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layout = QVBoxLayout(self)
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self.textEdit = QTextEdit(self)
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self.textEdit.setReadOnly(True)
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self.textEdit.setFont(QFont('Microsoft YaHei', 16))
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layout.addWidget(self.textEdit)
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self.setWindowSizeAndCenter()
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# 连接滚动条的valueChanged信号
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self.textEdit.verticalScrollBar().valueChanged.connect(self.onScrollBarValueChanged)
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def setWindowSizeAndCenter(self):
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screen = QDesktopWidget().availableGeometry()
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self.resize(int(screen.width() * 0.75), int(screen.height() * 0.75))
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self.centerWindow()
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def centerWindow(self):
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qr = self.frameGeometry()
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cp = QDesktopWidget().availableGeometry().center()
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qr.moveCenter(cp)
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self.move(qr.topLeft())
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def startTyping(self):
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self.content = ""
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for filepath in self.filepaths:
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with open(filepath, 'r') as file:
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self.content += file.read() + "\n" + "-"*50 + "\n"
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self.index = 0
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self.timer = QTimer(self)
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self.timer.timeout.connect(self.displayNextCharacter)
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self.timer.start(5)
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def displayNextCharacter(self):
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if self.index < len(self.content):
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char = self.content[self.index]
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#如果char和下一个字符是\n，那么就要执行换行
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if char == '\n' and self.content[self.index+1] == '\n':
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text_to_display = self.textEdit.toPlainText() + '\n\n'
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self.index += 1
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elif char == '\\t':
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# 对制表符进行处理
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text_to_display = self.textEdit.toPlainText() + '\t'
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else:
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# 普通字符
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text_to_display = self.textEdit.toPlainText() + char
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# 添加光标（移除啦，加了总是有神奇bug）
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#text_to_display += '|' if self.cursorVisible else ''
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self.textEdit.setPlainText(text_to_display)
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self.index += 1
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self.textEdit.ensureCursorVisible() # 始终滚动到底部
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else:
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self.timer.stop()
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#self.cursorTimer.stop() # 停止光标闪烁
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def onScrollBarValueChanged(self, value):
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scroll_bar = self.textEdit.verticalScrollBar()
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self.userIsScrolling = value < scroll_bar.maximum()
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def main():
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app = QApplication(sys.argv)
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filepaths = ['18503 copy.json'] # 替换为您的文件路径
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ex = TypewriterEffectApp(filepaths)
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ex.show()
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sys.exit(app.exec_())
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if __name__ == '__main__':
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main()
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