上傳檔案到「pyqt5/CODE/元件使用範例」

pyqt5/CODE/元件使用範例/qt04_drag.py

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+# -*- coding: utf-8 -*-
+
+'''
+    【簡介】
+	PyQt5中Drag and Drop範例
+   
+  
+'''
+
+import sys
+from PyQt5.QtCore import *
+from PyQt5.QtGui import *
+from PyQt5.QtWidgets import *
+   
+class Combo(QComboBox):
+
+	def __init__(self, title, parent):
+		super(Combo, self).__init__( parent)
+		self.setAcceptDrops(True)
+		
+	def dragEnterEvent(self, e):
+		print( e)
+		if e.mimeData().hasText():
+			e.accept()
+		else:
+			e.ignore() 
+
+	def dropEvent(self, e):
+		self.addItem(e.mimeData().text()) 
+		
+class Example(QWidget):
+	def __init__(self):
+		super(Example, self).__init__()
+		self.initUI()
+
+	def initUI(self):
+		lo = QFormLayout()
+		lo.addRow(QLabel("請把左邊的文字拖曳到右邊的下拉式清單中"))
+		edit = QLineEdit()
+		edit.setDragEnabled(True)
+		com = Combo("Button", self)
+		lo.addRow(edit,com)
+		self.setLayout(lo)
+		self.setWindowTitle('簡單的拖曳範例')
+
+if __name__ == '__main__':
+	app = QApplication(sys.argv)
+	ex = Example() 
+	ex.show()
+	sys.exit(app.exec_())

pyqt5/CODE/元件使用範例/qt04_drawBrush.py

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+# -*- coding: utf-8 -*-
+ 
+"""
+    【簡介】
+    繪圖中QBrush的範例，繪圖九種不同樣式的矩形。
+    
+    
+"""
+
+import sys 
+from PyQt5.QtWidgets import *  
+from PyQt5.QtGui import *
+from PyQt5.QtCore import Qt 
+
+class Drawing(QWidget): 
+	def __init__(self):
+		super().__init__()  
+		self.initUI()
+
+	def initUI(self):   
+		self.setGeometry(300, 300, 365, 280)
+		self.setWindowTitle('筆刷範例')        
+		self.show()
+
+	def paintEvent(self, e): 
+		qp = QPainter()
+		qp.begin(self)
+		self.drawLines(qp)
+		qp.end()
+
+	def drawLines(self, qp): 
+		brush = QBrush(Qt.SolidPattern)
+		qp.setBrush(brush)
+		qp.drawRect(10, 15, 90, 60)
+
+		brush = QBrush(Qt.Dense1Pattern)
+		qp.setBrush(brush)
+		qp.drawRect(130, 15, 90, 60)
+
+		brush = QBrush(Qt.Dense2Pattern)
+		qp.setBrush(brush)
+		qp.drawRect(250, 15, 90, 60)
+
+		brush = QBrush(Qt.Dense3Pattern)
+		qp.setBrush(brush)
+		qp.drawRect(10, 105, 90, 60)
+
+		brush = QBrush(Qt.DiagCrossPattern)
+		qp.setBrush(brush)
+		qp.drawRect(10, 105, 90, 60)
+
+		brush = QBrush(Qt.Dense5Pattern)
+		qp.setBrush(brush)
+		qp.drawRect(130, 105, 90, 60)
+
+		brush = QBrush(Qt.Dense6Pattern)
+		qp.setBrush(brush)
+		qp.drawRect(250, 105, 90, 60)
+
+		brush = QBrush(Qt.HorPattern)
+		qp.setBrush(brush)
+		qp.drawRect(10, 195, 90, 60)
+
+		brush = QBrush(Qt.VerPattern)
+		qp.setBrush(brush)
+		qp.drawRect(130, 195, 90, 60)
+
+		brush = QBrush(Qt.BDiagPattern)
+		qp.setBrush(brush)
+		qp.drawRect(250, 195, 90, 60)
+                         		
+if __name__ == '__main__':
+	app = QApplication(sys.argv)
+	demo = Drawing()
+	demo.show()
+	sys.exit(app.exec_())

pyqt5/CODE/元件使用範例/qt04_drawPen.py

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+# -*- coding: utf-8 -*-
+ 
+"""
+    【簡介】
+    繪圖中QPen的範例，繪製使用不同樣式的6條線
+    
+	
+"""
+
+import sys 
+from PyQt5.QtWidgets import *  
+from PyQt5.QtGui import *
+from PyQt5.QtCore import Qt 
+
+class Drawing(QWidget):
+	def __init__(self):
+		super().__init__()
+		self.initUI()
+
+	def initUI(self):   
+		self.setGeometry(300, 300, 280, 270)
+		self.setWindowTitle('鋼筆樣式範例')        
+
+	def paintEvent(self, e): 
+		qp = QPainter()
+		qp.begin(self)
+		self.drawLines(qp)
+		qp.end()
+
+	def drawLines(self, qp):
+		pen = QPen(Qt.black, 2, Qt.SolidLine)
+
+		qp.setPen(pen)
+		qp.drawLine(20, 40, 250, 40)
+
+		pen.setStyle(Qt.DashLine)
+		qp.setPen(pen)
+		qp.drawLine(20, 80, 250, 80)
+
+		pen.setStyle(Qt.DashDotLine)
+		qp.setPen(pen)
+		qp.drawLine(20, 120, 250, 120)
+
+		pen.setStyle(Qt.DotLine)
+		qp.setPen(pen)
+		qp.drawLine(20, 160, 250, 160)
+
+		pen.setStyle(Qt.DashDotDotLine)
+		qp.setPen(pen)
+		qp.drawLine(20, 200, 250, 200)
+
+		pen.setStyle(Qt.CustomDashLine)
+		pen.setDashPattern([1, 4, 5, 4])
+		qp.setPen(pen)
+		qp.drawLine(20, 240, 250, 240)
+
+if __name__ == '__main__':
+	app = QApplication(sys.argv)
+	demo = Drawing()
+	demo.show()
+	sys.exit(app.exec_())

pyqt5/CODE/元件使用範例/qt04_drawPoint.py

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+# -*- coding: utf-8 -*-
+ 
+"""
+    【簡介】
+    在視窗中畫點的範例
+    
+    
+"""
+
+import sys, math
+from PyQt5.QtWidgets import *  
+from PyQt5.QtGui import *
+from PyQt5.QtCore import Qt 
+
+class Drawing(QWidget):
+	def __init__(self, parent=None):
+		super(Drawing, self).__init__(parent)
+		self.resize(300, 200)  
+		self.setWindowTitle("在視窗中畫點")         
+
+	def paintEvent(self, event):
+		# 初始化繪圖工具
+		qp = QPainter()
+		qp.begin(self)
+		# 自訂畫點方法
+		self.drawPoints(qp)
+		qp.end()
+		
+	def drawPoints(self,  qp):
+		qp.setPen( Qt.red)
+		size = self.size()
+		
+		for i in range(1000):
+			# 繪製正弦函數圖形，它的週期是[-100, 100] 
+			x = 100 *(-1+2.0*i/1000)+ size.width()/2.0
+			y = -50 * math.sin((x - size.width()/2.0)*math.pi/50) + size.height()/2.0
+			qp.drawPoint(x, y)
+
+if __name__ == '__main__':
+	app = QApplication(sys.argv)
+	demo  = Drawing()
+	demo.show()
+	sys.exit(app.exec_())

pyqt5/CODE/元件使用範例/qt04_drawText.py

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+# -*- coding: utf-8 -*-
+ 
+"""
+    【簡介】
+    在視窗中繪製文字的範例
+    
+    
+"""
+
+import sys
+from PyQt5.QtWidgets import QApplication  ,QWidget 
+from PyQt5.QtGui import QPainter ,QColor ,QFont
+from PyQt5.QtCore import Qt 
+
+class Drawing(QWidget):
+	def __init__(self,parent=None):
+		super(Drawing,self).__init__(parent)
+		self.setWindowTitle("在視窗中繪製文字") 
+		self.resize(300, 200)        
+		self.text = '歡迎學習 PyQt5'
+         
+	def paintEvent(self,event):
+		painter = QPainter(self)        
+		painter.begin(self)
+        # 自訂繪製方法
+		self.drawText(event, painter)
+		painter.end()
+
+	def drawText(self, event, qp):
+        # 設定畫筆的顏色
+		qp.setPen( QColor(168, 34, 3) )
+        # 設定字體
+		qp.setFont( QFont('SimSun', 20))
+        # 繪製文字
+		qp.drawText(event.rect(), Qt.AlignCenter, self.text)
+		
+if __name__ == "__main__":  
+	app = QApplication(sys.argv) 
+	demo = Drawing()
+	demo.show()
+	sys.exit(app.exec_())