b74592ea41
Break down examples into module files to make easier to read. Use full-definitions on Enums (PyQt6 compatible, better documenting). Add fixes for Qt6 versions & some general bugfixes.
260 lines
7.7 KiB
Python
260 lines
7.7 KiB
Python
import os
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import sys
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from PyQt5.QtCore import QSize, Qt, QUrl
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from PyQt5.QtGui import QIcon, QKeySequence, QPixmap
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from PyQt5.QtPrintSupport import QPrintPreviewDialog
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from PyQt5.QtWebEngineWidgets import QWebEngineView
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from PyQt5.QtWidgets import (
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QAction,
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QApplication,
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QDialog,
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QDialogButtonBox,
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QFileDialog,
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QLabel,
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QLineEdit,
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QMainWindow,
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QShortcut,
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QStatusBar,
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QToolBar,
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QVBoxLayout,
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)
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class AboutDialog(QDialog):
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def __init__(self):
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super().__init__()
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QBtn = QDialogButtonBox.StandardButton.Ok # No cancel
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self.buttonBox = QDialogButtonBox(QBtn)
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self.buttonBox.accepted.connect(self.accept)
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self.buttonBox.rejected.connect(self.reject)
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layout = QVBoxLayout()
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title = QLabel("MooseAche")
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font = title.font()
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font.setPointSize(20)
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title.setFont(font)
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layout.addWidget(title)
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logo = QLabel()
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logo.setPixmap(QPixmap(os.path.join("images", "ma-icon-128.png")))
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layout.addWidget(logo)
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layout.addWidget(QLabel("Version 23.35.211.233232"))
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layout.addWidget(QLabel("Copyright 2015 MooseAche Inc."))
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for i in range(0, layout.count()):
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layout.itemAt(i).setAlignment(Qt.AlignmentFlag.AlignHCenter)
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layout.addWidget(self.buttonBox)
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self.setLayout(layout)
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class MainWindow(QMainWindow):
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def __init__(self):
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super().__init__()
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self.browser = QWebEngineView()
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self.browser.setUrl(QUrl("http://google.com"))
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self.browser.urlChanged.connect(self.update_urlbar)
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self.browser.loadFinished.connect(self.update_title)
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self.setCentralWidget(self.browser)
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self.status = QStatusBar()
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self.setStatusBar(self.status)
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navtb = QToolBar("Navigation")
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navtb.setIconSize(QSize(16, 16))
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self.addToolBar(navtb)
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self.shortcut_open = QShortcut(QKeySequence("F5"), self)
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self.shortcut_open.activated.connect(self.browser.reload)
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back_btn = QAction(QIcon(os.path.join("images", "arrow-180.png")), "Back", self)
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back_btn.setStatusTip("Back to previous page")
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back_btn.triggered.connect(self.browser.back)
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navtb.addAction(back_btn)
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next_btn = QAction(
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QIcon(os.path.join("images", "arrow-000.png")),
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"Forward",
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self,
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)
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next_btn.setStatusTip("Forward to next page")
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next_btn.triggered.connect(self.browser.forward)
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navtb.addAction(next_btn)
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reload_btn = QAction(
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QIcon(os.path.join("images", "arrow-circle-315.png")),
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"Reload",
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self,
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)
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reload_btn.setStatusTip("Reload page")
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reload_btn.triggered.connect(self.browser.reload)
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navtb.addAction(reload_btn)
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home_btn = QAction(QIcon(os.path.join("images", "home.png")), "Home", self)
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home_btn.setStatusTip("Go home")
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home_btn.triggered.connect(self.navigate_home)
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navtb.addAction(home_btn)
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navtb.addSeparator()
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self.httpsicon = QLabel() # Yes, really!
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self.httpsicon.setPixmap(QPixmap(os.path.join("images", "lock-nossl.png")))
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navtb.addWidget(self.httpsicon)
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self.urlbar = QLineEdit()
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self.urlbar.returnPressed.connect(self.navigate_to_url)
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navtb.addWidget(self.urlbar)
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stop_btn = QAction(
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QIcon(os.path.join("images", "cross-circle.png")),
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"Stop",
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self,
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)
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stop_btn.setStatusTip("Stop loading current page")
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stop_btn.triggered.connect(self.browser.stop)
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navtb.addAction(stop_btn)
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# Uncomment to disable native menubar on Mac
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# self.menuBar().setNativeMenuBar(False)
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file_menu = self.menuBar().addMenu("&File")
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open_file_action = QAction(
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QIcon(os.path.join("images", "disk--arrow.png")),
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"Open file...",
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self,
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)
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open_file_action.setStatusTip("Open from file")
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open_file_action.triggered.connect(self.open_file)
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file_menu.addAction(open_file_action)
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save_file_action = QAction(
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QIcon(os.path.join("images", "disk--pencil.png")),
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"Save Page As...",
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self,
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)
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save_file_action.setStatusTip("Save current page to file")
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save_file_action.triggered.connect(self.save_file)
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file_menu.addAction(save_file_action)
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print_action = QAction(
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QIcon(os.path.join("images", "printer.png")),
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"Print...",
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self,
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)
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print_action.setStatusTip("Print current page")
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print_action.triggered.connect(self.print_page)
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file_menu.addAction(print_action)
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help_menu = self.menuBar().addMenu("&Help")
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about_action = QAction(
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QIcon(os.path.join("images", "question.png")),
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"About MooseAche",
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self,
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)
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about_action.setStatusTip("Find out more about MooseAche") # Hungry!
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about_action.triggered.connect(self.about)
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help_menu.addAction(about_action)
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navigate_mozarella_action = QAction(
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QIcon(os.path.join("images", "lifebuoy.png")),
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"MooseAche Homepage",
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self,
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)
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navigate_mozarella_action.setStatusTip("Go to MooseAche Homepage")
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navigate_mozarella_action.triggered.connect(self.navigate_mozarella)
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help_menu.addAction(navigate_mozarella_action)
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self.show()
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self.setWindowIcon(QIcon(os.path.join("images", "ma-icon-64.png")))
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def update_title(self):
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title = self.browser.page().title()
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self.setWindowTitle("%s - MooseAche" % title)
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def navigate_mozarella(self):
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self.browser.setUrl(QUrl("https://www.pythonguis.com/"))
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def about(self):
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dlg = AboutDialog()
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dlg.exec_()
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def open_file(self):
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filename, _ = QFileDialog.getOpenFileName(
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self,
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"Open file",
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"",
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"Hypertext Markup Language (*.htm *.html);;" "All files (*.*)",
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)
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if filename:
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with open(filename, "r") as f:
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html = f.read()
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self.browser.setHtml(html)
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self.urlbar.setText(filename)
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def save_html(self, html):
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with open(self.save_file, "w") as f:
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f.write(html)
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def save_file(self):
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filename, _ = QFileDialog.getSaveFileName(
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self,
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"Save Page As",
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"",
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"Hypertext Markup Language (*.htm *html);;" "All files (*.*)",
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)
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if filename:
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self.save_file = filename
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self.browser.page().toHtml(self.save_html)
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def print_page(self):
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dlg = QPrintPreviewDialog()
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dlg.paintRequested.connect(self.browser.print_)
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dlg.exec_()
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def navigate_home(self):
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self.browser.setUrl(QUrl("http://www.google.com"))
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def navigate_to_url(self): # Does not receive the Url
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q = QUrl(self.urlbar.text())
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if q.scheme() == "":
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q.setScheme("http")
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self.browser.setUrl(q)
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def update_urlbar(self, q):
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if q.scheme() == "https":
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# Secure padlock icon
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self.httpsicon.setPixmap(QPixmap(os.path.join("images", "lock-ssl.png")))
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else:
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# Insecure padlock icon
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self.httpsicon.setPixmap(QPixmap(os.path.join("images", "lock-nossl.png")))
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self.urlbar.setText(q.toString())
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self.urlbar.setCursorPosition(0)
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if __name__ == "__main__":
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app = QApplication(sys.argv)
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app.setApplicationName("MooseAche")
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app.setOrganizationName("MooseAche")
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app.setOrganizationDomain("MooseAche.org")
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window = MainWindow()
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app.exec_()
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