mirror of
https://github.com/pythonguis/pythonguis-examples.git
synced 2025-01-20 16:52:54 +08:00
190 lines
6.6 KiB
Python
190 lines
6.6 KiB
Python
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from PyQt5.QtGui import *
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from PyQt5.QtWidgets import *
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from PyQt5.QtCore import *
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from PyQt5.QtPrintSupport import *
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import os
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import sys
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class MainWindow(QMainWindow):
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def __init__(self, *args, **kwargs):
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super(MainWindow, self).__init__(*args, **kwargs)
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layout = QVBoxLayout()
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self.editor = QPlainTextEdit() # Could also use a QTextEdit and set self.editor.setAcceptRichText(False)
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# Setup the QTextEdit editor configuration
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fixedfont = QFontDatabase.systemFont(QFontDatabase.FixedFont)
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fixedfont.setPointSize(12)
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self.editor.setFont(fixedfont)
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# self.path holds the path of the currently open file.
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# If none, we haven't got a file open yet (or creating new).
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self.path = None
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layout.addWidget(self.editor)
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container = QWidget()
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container.setLayout(layout)
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self.setCentralWidget(container)
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self.status = QStatusBar()
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self.setStatusBar(self.status)
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file_toolbar = QToolBar("File")
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file_toolbar.setIconSize(QSize(14, 14))
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self.addToolBar(file_toolbar)
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file_menu = self.menuBar().addMenu("&File")
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open_file_action = QAction(QIcon(os.path.join('images', 'blue-folder-open-document.png')), "Open file...", self)
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open_file_action.setStatusTip("Open file")
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open_file_action.triggered.connect(self.file_open)
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file_menu.addAction(open_file_action)
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file_toolbar.addAction(open_file_action)
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save_file_action = QAction(QIcon(os.path.join('images', 'disk.png')), "Save", self)
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save_file_action.setStatusTip("Save current page")
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save_file_action.triggered.connect(self.file_save)
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file_menu.addAction(save_file_action)
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file_toolbar.addAction(save_file_action)
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saveas_file_action = QAction(QIcon(os.path.join('images', 'disk--pencil.png')), "Save As...", self)
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saveas_file_action.setStatusTip("Save current page to specified file")
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saveas_file_action.triggered.connect(self.file_saveas)
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file_menu.addAction(saveas_file_action)
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file_toolbar.addAction(saveas_file_action)
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print_action = QAction(QIcon(os.path.join('images', 'printer.png')), "Print...", self)
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print_action.setStatusTip("Print current page")
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print_action.triggered.connect(self.file_print)
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file_menu.addAction(print_action)
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file_toolbar.addAction(print_action)
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edit_toolbar = QToolBar("Edit")
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edit_toolbar.setIconSize(QSize(16, 16))
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self.addToolBar(edit_toolbar)
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edit_menu = self.menuBar().addMenu("&Edit")
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undo_action = QAction(QIcon(os.path.join('images', 'arrow-curve-180-left.png')), "Undo", self)
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undo_action.setStatusTip("Undo last change")
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undo_action.triggered.connect(self.editor.undo)
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edit_menu.addAction(undo_action)
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redo_action = QAction(QIcon(os.path.join('images', 'arrow-curve.png')), "Redo", self)
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redo_action.setStatusTip("Redo last change")
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redo_action.triggered.connect(self.editor.redo)
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edit_toolbar.addAction(redo_action)
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edit_menu.addAction(redo_action)
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edit_menu.addSeparator()
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cut_action = QAction(QIcon(os.path.join('images', 'scissors.png')), "Cut", self)
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cut_action.setStatusTip("Cut selected text")
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cut_action.triggered.connect(self.editor.cut)
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edit_toolbar.addAction(cut_action)
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edit_menu.addAction(cut_action)
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copy_action = QAction(QIcon(os.path.join('images', 'document-copy.png')), "Copy", self)
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copy_action.setStatusTip("Copy selected text")
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copy_action.triggered.connect(self.editor.copy)
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edit_toolbar.addAction(copy_action)
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edit_menu.addAction(copy_action)
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paste_action = QAction(QIcon(os.path.join('images', 'clipboard-paste-document-text.png')), "Paste", self)
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paste_action.setStatusTip("Paste from clipboard")
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paste_action.triggered.connect(self.editor.paste)
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edit_toolbar.addAction(paste_action)
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edit_menu.addAction(paste_action)
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select_action = QAction(QIcon(os.path.join('images', 'selection-input.png')), "Select all", self)
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select_action.setStatusTip("Select all text")
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select_action.triggered.connect(self.editor.selectAll)
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edit_menu.addAction(select_action)
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edit_menu.addSeparator()
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wrap_action = QAction(QIcon(os.path.join('images', 'arrow-continue.png')), "Wrap text to window", self)
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wrap_action.setStatusTip("Toggle wrap text to window")
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wrap_action.setCheckable(True)
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wrap_action.setChecked(True)
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wrap_action.triggered.connect(self.edit_toggle_wrap)
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edit_menu.addAction(wrap_action)
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self.update_title()
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self.show()
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def dialog_critical(self, s):
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dlg = QMessageBox(self)
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dlg.setText(s)
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dlg.setIcon(QMessageBox.Critical)
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dlg.show()
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def file_open(self):
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path, _ = QFileDialog.getOpenFileName(self, "Open file", "", "Text documents (*.txt);All files (*.*)")
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try:
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with open(path, 'rU') as f:
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text = f.read()
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except Exception as e:
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self.dialog_critical(str(e))
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else:
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self.path = path
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self.editor.setPlainText(text)
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self.update_title()
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def file_save(self):
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if self.path is None:
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# If we do not have a path, we need to use Save As.
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return self.file_saveas()
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text = self.editor.toPlainText()
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try:
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with open(self.path, 'w') as f:
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f.write(text)
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except Exception as e:
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self.dialog_critical(str(e))
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def file_saveas(self):
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path, _ = QFileDialog.getSaveFileName(self, "Save file", "", "Text documents (*.txt);All files (*.*)")
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text = self.editor.toPlainText()
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if not path:
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# If dialog is cancelled, will return ''
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return
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try:
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with open(path, 'w') as f:
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f.write(text)
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except Exception as e:
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self.dialog_critical(str(e))
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else:
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self.path = path
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self.update_title()
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def file_print(self):
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dlg = QPrintDialog()
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if dlg.exec_():
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self.editor.print_(dlg.printer())
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def update_title(self):
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self.setWindowTitle("%s - No2Pads" % (os.path.basename(self.path) if self.path else "Untitled"))
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def edit_toggle_wrap(self):
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self.editor.setLineWrapMode( 1 if self.editor.lineWrapMode() == 0 else 0 )
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if __name__ == '__main__':
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app = QApplication(sys.argv)
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app.setApplicationName("No2Pads")
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window = MainWindow()
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app.exec_()
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