上傳檔案到「pyqt5/CODE/元件使用範例」

pyqt5/CODE/元件使用範例/qt0411_QComboBox.py

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+# -*- coding: utf-8 -*-
+
+'''
+    【簡介】
+	PyQt5中QComboBox範例
+   
+  
+'''
+
+import sys
+from PyQt5.QtCore import *
+from PyQt5.QtGui import *
+from PyQt5.QtWidgets import *
+
+class ComboxDemo(QWidget):
+	def __init__(self, parent=None):
+		super(ComboxDemo, self).__init__(parent)
+		self.setWindowTitle("combox 範例")        
+		self.resize(300, 90)                       
+		layout = QVBoxLayout()
+		self.lbl = QLabel("" )  
+         
+		self.cb = QComboBox()
+		self.cb.addItem("C")
+		self.cb.addItem("C++")
+		self.cb.addItems(["Java", "C#", "Python"])
+		self.cb.currentIndexChanged.connect(self.selectionchange)
+		layout.addWidget(self.cb)
+		layout.addWidget(self.lbl )
+		self.setLayout(layout)
+                                    
+	def selectionchange(self,i):
+		self.lbl.setText( self.cb.currentText() )
+		self.lbl.adjustSize()
+		
+		print( "Items in the list are :" )
+		for count in range(self.cb.count()):
+			print( 'item'+str(count) + '='+ self.cb.itemText(count) )
+			print( "Current index",i,"selection changed ",self.cb.currentText() )
+
+if __name__ == '__main__':
+	app = QApplication(sys.argv)
+	comboxDemo = ComboxDemo()
+	comboxDemo.show()
+	sys.exit(app.exec_())

pyqt5/CODE/元件使用範例/qt0412_QSpinBox.py

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+# -*- coding: utf-8 -*-
+
+'''
+    【簡介】
+	PyQt5中QSpinBox範例
+   
+  
+'''
+
+import sys
+from PyQt5.QtCore import *
+from PyQt5.QtGui import *
+from PyQt5.QtWidgets import *
+
+class spindemo(QWidget):
+	def __init__(self, parent=None):
+		super(spindemo, self).__init__(parent)
+		self.setWindowTitle("SpinBox 範例")
+		self.resize(300, 100)
+        
+		layout = QVBoxLayout()
+		self.l1=QLabel("current value:")
+		self.l1.setAlignment(Qt.AlignCenter)
+		layout.addWidget(self.l1)
+		self.sp = QSpinBox()
+		layout.addWidget(self.sp)
+		self.sp.valueChanged.connect(self.valuechange)
+		self.setLayout(layout)
+		      
+	def valuechange(self):	
+		self.l1.setText("目前值：" + str(self.sp.value()) )
+
+if __name__ == '__main__':
+	app = QApplication(sys.argv)
+	ex = spindemo()
+	ex.show()
+	sys.exit(app.exec_())

pyqt5/CODE/元件使用範例/qt0413_QSlider.py

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+# -*- coding: utf-8 -*-
+
+'''
+    【簡介】
+	PyQt5中QSlider範例
+   
+  
+'''
+
+import sys
+from PyQt5.QtCore import *
+from PyQt5.QtGui import *
+from PyQt5.QtWidgets import *
+
+class SliderDemo(QWidget):
+	def __init__(self, parent=None):
+		super(SliderDemo, self).__init__(parent)
+		self.setWindowTitle("QSlider 範例")  
+		self.resize(300, 100)
+        
+		layout = QVBoxLayout()
+		self.l1 = QLabel("Hello PyQt5")
+		self.l1.setAlignment(Qt.AlignCenter)
+		layout.addWidget(self.l1)
+        # 水平方向
+		self.sl = QSlider(Qt.Horizontal)
+        # 設定最小值
+		self.sl.setMinimum(10)
+		# 設定最大值
+		self.sl.setMaximum(50)
+		# 步長
+		self.sl.setSingleStep( 3 ) 
+		# 設置目前值
+		self.sl.setValue(20)
+		# 刻度位置，刻度在下方
+		self.sl.setTickPosition(QSlider.TicksBelow)
+        # 設定刻度間隔
+		self.sl.setTickInterval(5)
+		layout.addWidget(self.sl)
+        # 連接訊號/槽
+		self.sl.valueChanged.connect(self.valuechange)
+		self.setLayout(layout)
+                      
+	def valuechange(self):
+		print('current slider value=%s' % self.sl.value() )
+		size = self.sl.value()
+		self.l1.setFont(QFont("Arial",size))
+                      
+if __name__ == '__main__':
+	app = QApplication(sys.argv)
+	demo = SliderDemo()
+	demo.show()
+	sys.exit(app.exec_())

pyqt5/CODE/元件使用範例/qt0414_Qmenu.py

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+# -*- coding: utf-8 -*-
+
+'''
+    【簡介】
+	PyQt5中Qmenu範例
+   
+  
+'''
+
+import sys
+from PyQt5.QtCore import *
+from PyQt5.QtGui import *
+from PyQt5.QtWidgets import *
+
+class MenuDemo(QMainWindow):
+	def __init__(self, parent=None):
+		super(MenuDemo, self).__init__(parent)
+		layout = QHBoxLayout()
+		bar = self.menuBar()
+		file = bar.addMenu("File")
+		file.addAction("New")
+		save = QAction("Save", self)
+		save.setShortcut("Ctrl+S")
+		file.addAction(save)
+		edit = file.addMenu("Edit")
+		edit.addAction("Copy")
+		edit.addAction("Paste")
+		quit = QAction("Quit", self)
+		file.addAction(quit)
+		file.triggered[QAction].connect(self.processtrigger) 
+		self.setLayout(layout)
+		self.setWindowTitle("Qmenu範例")
+		self.resize(350,300)
+		
+	def processtrigger(self,q):
+		print( q.text()+" is triggered" )
+
+if __name__ == '__main__':
+	app = QApplication(sys.argv)
+	demo = MenuDemo()
+	demo.show()
+	sys.exit(app.exec_())

pyqt5/CODE/元件使用範例/qt0415_QToolBar.py

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+# -*- coding: utf-8 -*-
+
+'''
+    【簡介】
+	PyQt5中QToolBar範例
+   
+  
+'''
+
+import sys
+from PyQt5.QtCore import *
+from PyQt5.QtGui import *
+from PyQt5.QtWidgets import *
+
+class ToolBarDemo( QMainWindow ):
+
+	def __init__(self, parent=None):
+		super(ToolBarDemo, self).__init__(parent)
+		self.setWindowTitle("QToolBar範例")		
+		self.resize(300, 200)
+		
+		layout = QVBoxLayout()
+		tb = self.addToolBar("File")
+		new = QAction(QIcon("./images/new.png"),"New",self)
+		tb.addAction(new)
+		open = QAction(QIcon("./images/open.png"),"Open",self)
+		tb.addAction(open)
+		save = QAction(QIcon("./images/save.png"),"Save",self)
+		tb.addAction(save)
+		tb.actionTriggered[QAction].connect(self.toolbtnpressed)
+		self.setLayout(layout)
+           	
+	def toolbtnpressed(self,a):
+		print("pressed tool button is ",a.text() )
+           
+if __name__ == '__main__':
+	app = QApplication(sys.argv)
+	demo = ToolBarDemo()
+	demo.show()
+	sys.exit(app.exec_())