高亮文本

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625781186 2018-09-05 15:02:18 +08:00
parent cc7a62bf3c
commit 6fdceac9a4
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[腾讯视频热播列表](腾讯视频热播列表/)
[ QWebView 与 python 通过js交互 特效 - 已失效 未更新](https://github.com/892768447/PhotoEffects)
### II、功能型
#### 2.1 常用例子
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- python 的exec( ) 动态生成控件
- [1. 动态控件基础例子 - 动态生成按钮](partner_625781186/exec动态生成控件/dynamic_button)
- [2. 动态控件基础例子 - 动态生成菜单](partner_625781186/exec动态生成控件/dynamic_Menu)
- [3.配合setting记录模型类型](partner_625781186/exec动态生成控件/)
- [3. 配合setting记录模型类型](partner_625781186/exec动态生成控件/)
- 小部件
- [ ☆! QSplitter 分割条重写 来添加按钮](分割窗口的分割条重写/)
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- [ 右下角弹出框](右下角弹出框/)
- [ 消息对话框倒计时关闭](消息对话框倒计时关闭/)
- [QTextEdit 文本高亮](文本高亮/)
- win 32
- [ 嵌入外部窗口](嵌入外部窗口/)
- [ 探测窗口和 放大镜](探测窗口和放大截图/)
@ -51,6 +53,7 @@
- [ QListView 加按钮和 排序](QListView/)
- [ Json生成QTreeWidget](Json生成QTreeWidget/)
- [ treeWidget 节点可拖拽](https://github.com/AshotS/glowing-disco)
- [ QSqlTableModel + QTableView 数据库查询显示表格](数据库查询显示表格/)

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文本高亮/README.md Normal file
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# QTextEdit mergeCurrentCharFormat函数
![1](ScreenShot/1.gif)

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import sys
from PyQt5.QtGui import QTextCharFormat,QTextDocument, QTextCursor
from PyQt5.QtWidgets import (QApplication, QMainWindow, QTextEdit,
QToolBar, QLineEdit, QPushButton, QColorDialog, QHBoxLayout, QWidget)
class TextEdit(QMainWindow):
def __init__(self, parent=None):
super(TextEdit, self).__init__(parent)
self.textEdit = QTextEdit(self)
self.setCentralWidget(self.textEdit)
widget = QWidget(self)
vb = QHBoxLayout(widget)
vb.setContentsMargins(0, 0, 0, 0)
self.findText = QLineEdit(self)
self.findText.setText('self')
findBtn = QPushButton('高亮',self)
findBtn.clicked.connect(self.highlight)
vb.addWidget(self.findText)
vb.addWidget(findBtn)
tb = QToolBar(self)
tb.addWidget(widget)
def setText(self,text):
self.textEdit.setPlainText(text)
def mergeFormatOnWordOrSelection(self, format):
cursor = self.textEdit.textCursor()
if not cursor.hasSelection():
cursor.select(QTextCursor.WordUnderCursor)
cursor.mergeCharFormat(format)
self.textEdit.mergeCurrentCharFormat(format)
def highlight(self):
text = self.findText.text()#输入框中的文字
if not text:
return
col = QColorDialog.getColor(self.textEdit.textColor(), self)
if not col.isValid():
return
fmt = QTextCharFormat()
fmt.setForeground(col)
#先把光标移动到开头
self.textEdit.moveCursor(QTextCursor.Start)
while self.textEdit.find(text,QTextDocument.FindWholeWords):#查找所有文字
self.mergeFormatOnWordOrSelection(fmt)
if __name__ == '__main__':
app = QApplication(sys.argv)
textEdit = TextEdit()
textEdit.resize(800, 600)
textEdit.show()
textEdit.setText(open(sys.argv[0],'rb').read().decode())
sys.exit(app.exec_())