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from PyQt5.QtWidgets import (QApplication, QWidget, QTableWidget,QPushButton,
QVBoxLayout,
QTableWidgetItem)
from PyQt5.QtGui import QPixmap, QPainter, QImage, QTextDocument
from PyQt5.QtPrintSupport import QPrinter, QPrintDialog, QPrintPreviewDialog
from PyQt5.QtCore import QRect, QPoint, QSize , Qt
# 有预览框<br># 908204694@qq.com<br>#
def on_htmlButton_clicked():
printer =QPrinter(QPrinter.HighResolution)
#/* 打印预览 */
preview =QPrintPreviewDialog(printer,widget )
preview.paintRequested.connect(printHtml)
#
# 显示 预览框
#
#preview.exec()
preview.exec_()
def printHtml(printer):
html = '''<html>
<head></head>
<body>
<h1>55555</h1><b>bold</b><h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b><h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b><h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b><h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
<h1>55555</h1><b>bold</b>
</body>
</html>'''
textDocument = QTextDocument()
textDocument.setHtml(html)
#textDocument.print(printer)
textDocument.print_(printer)
def on_picButton_clicked():
printer =QPrinter(QPrinter.HighResolution)
#/* 打印预览 */
preview =QPrintPreviewDialog(printer,widget )
'''
* QPrintPreviewDialog类提供了一个打印预览对话框，里面功能比较全，
* paintRequested(QPrinter *printer)是系统提供的，
* 当preview.exec()执行时该信号被触发，
* plotPic(QPrinter *printer)是用户自定义的槽函数，图像的绘制就在这个函数里。
'''
preview.paintRequested.connect(plotPic)
preview.exec()#/* 等待预览界面退出 */
def plotPic(printer):
painter =QPainter(printer);
image = QPixmap()
image=widget.grab(QRect( QPoint( 0, 0 ),
QSize( widget.size().width(),
widget.size().height()
)
)
)# /* 绘制窗口至画布 */
#QRect
rect = painter.viewport();
#QSize
size = image.size();
size.scale(rect.size(), Qt.KeepAspectRatio)# //此处保证图片显示完整
painter.setViewport(rect.x(), rect.y(),size.width(), size.height());
painter.setWindow(image.rect());
painter.drawPixmap(0,0,image); #/* 数据显示至预览界面 */
import sys
app = QApplication(sys.argv)
tablewidget = QTableWidget()
## 设置列数
tablewidget.setColumnCount(4)
tablewidget.horizontalHeader().setDefaultSectionSize(150)
## QStringList在PyQt5
header= ['name', 'last modify time','type', 'size']
tablewidget.setHorizontalHeaderLabels(header)
tablewidget.insertRow(0)
tablewidget.insertRow(0)
pItem1 = QTableWidgetItem('aa' )
pItem2 = QTableWidgetItem('bb' )
pItem3 = QTableWidgetItem('cc' )
pItem4 = QTableWidgetItem('dd' )
tablewidget.setItem( 0, 0, pItem1 )
tablewidget.setItem( 0, 1, pItem2 )
tablewidget.setItem( 0, 2, pItem3 )
tablewidget.setItem( 0, 3, pItem4 )
tablewidget.setMinimumSize(800, 600)
button = QPushButton('打印界面')
button.clicked.connect(on_picButton_clicked)
button_txt = QPushButton('打印文字')
button_txt.clicked.connect(on_htmlButton_clicked)
widget = QWidget()
layout = QVBoxLayout(widget)
layout.addWidget(button)
layout.addWidget(button_txt)
layout.addWidget(tablewidget)
widget.show()
sys.exit(app.exec_())
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