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■PyQt4の書き方

☆単なるウィンドウを作ってみる

	# Simple Window
	
	import sys
	from PyQt4 import QtGui

	app = QtGui.QApplication(sys.argv)

	widget = QtGui.QWidget()
	widget.resize(250, 150)
	widget.setWindowTitle("simple")
	widget.show()
	sys.exit(app.exec_())
	

	
	#Simple Window with Date
	
	from PyQt4.QtCore import *
	from PyQt4.QtGui import *
	import sys
	from datetime import date
	
	now = date.today()
	message = str(now)
	app = QApplication(sys.argv)
	label = QLabel("<font color=red size=72><b>"+message+"</b></font>")
	label.show( )
	dialog = QDialog()
	dialog.show()
	sys.exit(app.exec_())

	

☆クラスを継承し、差分でプログラムを作る

	# Simple Window with Painting
	
	import sys
	from PyQt4.QtCore import *
	from PyQt4.QtGui import *
	
	class DrawSample(QWidget):
		def __init__(self, parent=None):
			QWidget.__init__(self, parent)
			self.setGeometry( 30, 30, 300, 300)
			self.setWindowTitle("DrawSample")
	
		def paintEvent(self,event):
			paint = QPainter()
			paint.begin(self)
			paint.setPen(Qt.red)
			for i in range( 1, 100, 8 ):
				paint.drawEllipse(i, i, 100-i*2, 100-i*2)
			text = u"サンプル"
			paint.setPen(QColor(168, 34, 3))
			paint.setFont(QFont('Decorative', 10))
			paint.drawText(100, 100, text)
			paint.end()

	app = QApplication(sys.argv)
	ds = DrawSample()
	ds.show()
	sys.exit(app.exec_())
	

	
	# Sample Dialog (from "PyQt4 Tutorial")
	
	import sys
	from PyQt4.QtGui import *
	from PyQt4.QtCore import *
	
	class SampleDialog(QWidget):
		def __init__(self, parent=None):
			QWidget.__init__(self, parent)
	
			self.setWindowTitle( "Hello Dialog")
	
			title = QLabel( "Title" )
			author = QLabel( "Author")
			context = QLabel( "Context ")
	
			titleEdit = QLineEdit()
			authorEdit = QLineEdit()
			conEdit = QTextEdit()
	
			grid = QGridLayout()
			grid.setSpacing(10)
	
			grid.addWidget( title, 1, 0 )
			grid.addWidget( titleEdit, 1, 1)
	
			grid.addWidget( author, 2, 0)
			grid.addWidget( authorEdit, 2, 1)
	
			grid.addWidget( context, 3, 0)
			grid.addWidget( conEdit, 3, 1, 5, 1)
	
			self.setLayout(grid)
			self.resize(350, 300)
	
	app = QApplication(sys.argv)
	sd = SampleDialog()
	sd.show()
	sys.exit(app.exec_())