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pyqt学习之设置字体，字号等格式属性（网友提供）
# -*- coding: utf-8 -*-
from PyQt4.QtGui import *
from PyQt4.QtCore import *
import sys
QTextCodec.setCodecForTr(QTextCodec.codecForName("utf8"))
class MainWindow(QMainWindow):
def __init__(self,parent=None):
super(MainWindow,self).__init__(parent)
self.setWindowTitle(self.tr("设置字体，字号等格式属性"))
self.text = QTextEdit()
self.setCentralWidget(self.text);
#字体
self.toolBar=self.addToolBar("Font")
self.label1 = QLabel(self.tr("字体:"))
self.fontBox = QFontComboBox()
self.fontBox.setFontFilters(QFontComboBox.ScalableFonts);
self.toolBar.addWidget(self.label1)
self.toolBar.addWidget(self.fontBox)
#字号
self.label2 = QLabel(self.tr("数字:"))
self.sizeBox = QComboBox()
#print dir(self.sizeBox)
self.toolBar.addWidget(self.label2)
self.toolBar.addWidget(self.sizeBox)
self.db = QFontDatabase()
for i in self.db.standardSizes():
self.sizeBox.addItem(QString.number(i))
self.toolBar.addSeparator();
#加粗 、斜体、下划线、颜色
self.boldBtn = QToolButton()
self.boldBtn.setIcon(QIcon("image/bold.png"))
self.boldBtn.setCheckable(True)
self.toolBar.addWidget(self.boldBtn)
self.italicBtn = QToolButton()
self.italicBtn.setIcon(QIcon("image/italic.png"))
self.italicBtn.setCheckable(True)
self.toolBar.addWidget(self.italicBtn)
self.underBtn = QToolButton()
self.underBtn.setIcon(QIcon("image/underline.png"))
self.underBtn.setCheckable(True)
self.toolBar.addWidget(self.underBtn)
self.toolBar.addSeparator()
self.colorBtn = QToolButton()
self.colorBtn.setIcon(QIcon("image/color.png"))
self.toolBar.addWidget(self.colorBtn)
#信号和槽函数
self.fontBox.activated.connect(self.slotFont)
self.sizeBox.activated.connect(self.slotSize)
self.boldBtn.clicked.connect(self.slotBold)
self.italicBtn.clicked.connect(self.slotItalic)
self.underBtn.clicked.connect(self.slotUnder)
self.colorBtn.clicked.connect(self.slotColor)
self.text.currentCharFormatChanged.connect(self.slotCurrentFormatChanged)
self.fmt = QTextCharFormat()
def slotFont(self):
self.f = self.fontBox.currentFont().family()
self.fmt.setFontFamily(self.f)
self.cursor = self.text.textCursor()
if(self.cursor.hasSelection() is False):
self.cursor.select(QTextCursor.WordUnderCursor)
self.cursor.mergeCharFormat(self.fmt)
self.text.mergeCurrentCharFormat(self.fmt)
def slotSize(self):
self.num = self.sizeBox.currentText()
self.fmt.setFontPointSize(self.num.toFloat()[0])
self.text.mergeCurrentCharFormat(self.fmt)
def slotBold(self):
if self.boldBtn.isChecked():
self.fmt.setFontPointSize(QFont.Bold)
else:
self.fmt.setFontPointSize(QFont.Normal)
self.text.mergeCurrentCharFormat(self.fmt)
def slotItalic(self):
if self.italicBtn.isChecked():
if self.fmt.fontItalic() is False:
self.fmt.setFontItalic(True)
else:
self.fmt.setFontItalic(False)
self.text.mergeCurrentCharFormat(self.fmt)
def slotUnder(self):
self.fmt.setFontUnderline(self.underBtn.isChecked())
self.text.mergeCurrentCharFormat(self.fmt)
def slotColor(self):
self.color = QColorDialog.getColor(Qt.red)
if(self.color.isValid()):
self.fmt.setForeground(self.color)
self.text.mergeCurrentCharFormat(self.fmt)
def slotCurrentFormatChanged(self):
self.fontBox.setCurrentIndex(self.fontBox.findText(self.fmt.fontFamily()))
self.sizeBox.setCurrentIndex(self.sizeBox.findText(QString.number(self.fmt.fontPointSize())))
self.boldBtn.setChecked(self.fmt.font().bold())
self.italicBtn.setChecked(self.fmt.fontItalic())
self.underBtn.setChecked(self.fmt.fontUnderline())
app=QApplication(sys.argv)
main=MainWindow()
main.show()
app.exec_()
pyqt学习之设置字体，字号等格式属性（网友提供）