pyqt5 对话框

1. from PyQt5.QtGui import QIcon
   
2. from PyQt5.QtWidgets import (QAction, QApplication, QCheckBox, QComboBox,
   
3.         QDialog, QGridLayout, QGroupBox, QHBoxLayout, QLabel, QLineEdit,
   
4.         QMessageBox, QMenu, QPushButton, QSpinBox, QStyle, QSystemTrayIcon,
   
5.         QTextEdit, QVBoxLayout)
   
6. 
   
7. import systray_rc
   
8. 
   
9. 
   
10. class Window(QDialog):
    
11.     def __init__(self):
    
12.         super(Window, self).__init__()
    
13. 
    
14.         self.createIconGroupBox()
    
15.         self.createMessageGroupBox()
    
16. 
    
17.         self.iconLabel.setMinimumWidth(self.durationLabel.sizeHint().width())
    
18. 
    
19.         self.createActions()
    
20.         self.createTrayIcon()
    
21. 
    
22.         self.showMessageButton.clicked.connect(self.showMessage)
    
23.         self.showIconCheckBox.toggled.connect(self.trayIcon.setVisible)
    
24.         self.iconComboBox.currentIndexChanged.connect(self.setIcon)
    
25.         self.trayIcon.messageClicked.connect(self.messageClicked)
    
26.         self.trayIcon.activated.connect(self.iconActivated)
    
27. 
    
28.         mainLayout = QVBoxLayout()
    
29.         mainLayout.addWidget(self.iconGroupBox)
    
30.         mainLayout.addWidget(self.messageGroupBox)
    
31.         self.setLayout(mainLayout)
    
32. 
    
33.         self.iconComboBox.setCurrentIndex(1)
    
34.         self.trayIcon.show()
    
35. 
    
36.         self.setWindowTitle("Systray")
    
37.         self.resize(400, 300)
    
38. 
    
39.     def setVisible(self, visible):
    
40.         self.minimizeAction.setEnabled(visible)
    
41.         self.maximizeAction.setEnabled(not self.isMaximized())
    
42.         self.restoreAction.setEnabled(self.isMaximized() or not visible)
    
43.         super(Window, self).setVisible(visible)
    
44. 
    
45.     def closeEvent(self, event):
    
46.         if self.trayIcon.isVisible():
    
47.             QMessageBox.information(self, "Systray",
    
48.                     "The program will keep running in the system tray. To "
    
49.                     "terminate the program, choose Quit in the "
    
50.                     "context menu of the system tray entry.")
    
51.             self.hide()
    
52.             event.ignore()
    
53. 
    
54.     def setIcon(self, index):
    
55.         icon = self.iconComboBox.itemIcon(index)
    
56.         self.trayIcon.setIcon(icon)
    
57.         self.setWindowIcon(icon)
    
58. 
    
59.         self.trayIcon.setToolTip(self.iconComboBox.itemText(index))
    
60. 
    
61.     def iconActivated(self, reason):
    
62.         if reason in (QSystemTrayIcon.Trigger, QSystemTrayIcon.DoubleClick):
    
63.             self.iconComboBox.setCurrentIndex(
    
64.                     (self.iconComboBox.currentIndex() + 1)
    
65.                     % self.iconComboBox.count())
    
66.         elif reason == QSystemTrayIcon.MiddleClick:
    
67.             self.showMessage()
    
68. 
    
69.     def showMessage(self):
    
70.         icon = QSystemTrayIcon.MessageIcon(
    
71.                 self.typeComboBox.itemData(self.typeComboBox.currentIndex()))
    
72.         self.trayIcon.showMessage(self.titleEdit.text(),
    
73.                 self.bodyEdit.toPlainText(), icon,
    
74.                 self.durationSpinBox.value() * 1000)
    
75. 
    
76.     def messageClicked(self):
    
77.         QMessageBox.information(None, "Systray",
    
78.                 "Sorry, I already gave what help I could.\nMaybe you should "
    
79.                 "try asking a human?")
    
80. 
    
81.     def createIconGroupBox(self):
    
82.         self.iconGroupBox = QGroupBox("Tray Icon")
    
83. 
    
84.         self.iconLabel = QLabel("Icon:")
    
85. 
    
86.         self.iconComboBox = QComboBox()
    
87.         self.iconComboBox.addItem(QIcon(':/images/bad.png'), "Bad")
    
88.         self.iconComboBox.addItem(QIcon(':/images/heart.png'), "Heart")
    
89.         self.iconComboBox.addItem(QIcon(':/images/trash.png'), "Trash")
    
90. 
    
91.         self.showIconCheckBox = QCheckBox("Show icon")
    
92.         self.showIconCheckBox.setChecked(True)
    
93. 
    
94.         iconLayout = QHBoxLayout()
    
95.         iconLayout.addWidget(self.iconLabel)
    
96.         iconLayout.addWidget(self.iconComboBox)
    
97.         iconLayout.addStretch()
    
98.         iconLayout.addWidget(self.showIconCheckBox)
    
99.         self.iconGroupBox.setLayout(iconLayout)
    
100. 
     
101.     def createMessageGroupBox(self):
     
102.         self.messageGroupBox = QGroupBox("Balloon Message")
     
103. 
     
104.         typeLabel = QLabel("Type:")
     
105. 
     
106.         self.typeComboBox = QComboBox()
     
107.         self.typeComboBox.addItem("None", QSystemTrayIcon.NoIcon)
     
108.         self.typeComboBox.addItem(self.style().standardIcon(
     
109.                 QStyle.SP_MessageBoxInformation), "Information",
     
110.                 QSystemTrayIcon.Information)
     
111.         self.typeComboBox.addItem(self.style().standardIcon(
     
112.                 QStyle.SP_MessageBoxWarning), "Warning",
     
113.                 QSystemTrayIcon.Warning)
     
114.         self.typeComboBox.addItem(self.style().standardIcon(
     
115.                 QStyle.SP_MessageBoxCritical), "Critical",
     
116.                 QSystemTrayIcon.Critical)
     
117.         self.typeComboBox.setCurrentIndex(1)
     
118. 
     
119.         self.durationLabel = QLabel("Duration:")
     
120. 
     
121.         self.durationSpinBox = QSpinBox()
     
122.         self.durationSpinBox.setRange(5, 60)
     
123.         self.durationSpinBox.setSuffix(" s")
     
124.         self.durationSpinBox.setValue(15)
     
125. 
     
126.         durationWarningLabel = QLabel("(some systems might ignore this hint)")
     
127.         durationWarningLabel.setIndent(10)
     
128. 
     
129.         titleLabel = QLabel("Title:")
     
130. 
     
131.         self.titleEdit = QLineEdit("Cannot connect to network")
     
132. 
     
133.         bodyLabel = QLabel("Body:")
     
134. 
     
135.         self.bodyEdit = QTextEdit()
     
136.         self.bodyEdit.setPlainText("Don't believe me. Honestly, I don't have "
     
137.                 "a clue.\nClick this balloon for details.")
     
138. 
     
139.         self.showMessageButton = QPushButton("Show Message")
     
140.         self.showMessageButton.setDefault(True)
     
141. 
     
142.         messageLayout = QGridLayout()
     
143.         messageLayout.addWidget(typeLabel, 0, 0)
     
144.         messageLayout.addWidget(self.typeComboBox, 0, 1, 1, 2)
     
145.         messageLayout.addWidget(self.durationLabel, 1, 0)
     
146.         messageLayout.addWidget(self.durationSpinBox, 1, 1)
     
147.         messageLayout.addWidget(durationWarningLabel, 1, 2, 1, 3)
     
148.         messageLayout.addWidget(titleLabel, 2, 0)
     
149.         messageLayout.addWidget(self.titleEdit, 2, 1, 1, 4)
     
150.         messageLayout.addWidget(bodyLabel, 3, 0)
     
151.         messageLayout.addWidget(self.bodyEdit, 3, 1, 2, 4)
     
152.         messageLayout.addWidget(self.showMessageButton, 5, 4)
     
153.         messageLayout.setColumnStretch(3, 1)
     
154.         messageLayout.setRowStretch(4, 1)
     
155.         self.messageGroupBox.setLayout(messageLayout)
     
156. 
     
157.     def createActions(self):
     
158.         self.minimizeAction = QAction("Mi&nimize", self, triggered=self.hide)
     
159.         self.maximizeAction = QAction("Ma&ximize", self,
     
160.                 triggered=self.showMaximized)
     
161.         self.restoreAction = QAction("&Restore", self,
     
162.                 triggered=self.showNormal)
     
163.         self.quitAction = QAction("&Quit", self,
     
164.                 triggered=QApplication.instance().quit)
     
165. 
     
166.     def createTrayIcon(self):
     
167.          self.trayIconMenu = QMenu(self)
     
168.          self.trayIconMenu.addAction(self.minimizeAction)
     
169.          self.trayIconMenu.addAction(self.maximizeAction)
     
170.          self.trayIconMenu.addAction(self.restoreAction)
     
171.          self.trayIconMenu.addSeparator()
     
172.          self.trayIconMenu.addAction(self.quitAction)
     
173. 
     
174.          self.trayIcon = QSystemTrayIcon(self)
     
175.          self.trayIcon.setContextMenu(self.trayIconMenu)
     
176. 
     
177. 
     
178. if __name__ == '__main__':
     
179. 
     
180.     import sys
     
181. 
     
182.     app = QApplication(sys.argv)
     
183. 
     
184.     if not QSystemTrayIcon.isSystemTrayAvailable():
     
185.         QMessageBox.critical(None, "Systray",
     
186.                 "I couldn't detect any system tray on this system.")
     
187.         sys.exit(1)
     
188. 
     
189.     QApplication.setQuitOnLastWindowClosed(False)
     
190. 
     
191.     window = Window()
     
192.     window.show()
     
193.     sys.exit(app.exec_())