183 lines
7.2 KiB
Python
183 lines
7.2 KiB
Python
import sys
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from PyQt5.QtWidgets import QWidget, QFileDialog, QMainWindow, QMenuBar, QToolBar, QAction, QStatusBar, QSizePolicy
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from PyQt5.QtGui import QKeySequence
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from PyQt5.QtCore import QSize, QSettings, Qt
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from nixview.util.file_handler import FileHandler, NodeType
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import nixview.constants as cnst
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import nixview.communicator as comm
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from nixview.ui.centralwidget import CentralWidget
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from nixview.ui.about import AboutDialog
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from nixview.ui.helpdialog import HelpDialog
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class NixView(QMainWindow):
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def __init__(self, *args, **kwargs):
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super(NixView, self).__init__(*args, **kwargs)
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self._current_item = None
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self.setWindowTitle("NixView")
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self.setWindowIcon(cnst.get_icon('nixview'))
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self._file_handler = FileHandler()
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self.setStatusBar(QStatusBar(self))
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self.setMenuBar(QMenuBar(self))
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self.create_actions()
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self._cw = CentralWidget(self)
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self.setCentralWidget(self._cw)
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comm.communicator.open_recent.connect(self.on_open_recent)
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comm.communicator.item_selected.connect(self.on_item_selected)
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comm.communicator.plot_error.connect(self.on_plot_error)
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self.show()
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def on_open_recent(self, event):
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self.open_file(event)
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def on_item_selected(self, current):
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self._current_item = current
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current_item_type = current._node_descriptor.entity_type
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enable = current_item_type == NodeType.MultiTag or current_item_type == NodeType.DataArray or current_item_type == NodeType.Tag
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self._plot_action.setEnabled(enable)
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self._table_action.setEnabled(enable)
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def create_actions(self):
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self._file_open_action = QAction(cnst.get_icon("nixview_open"), "Open", self)
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self._file_open_action.setStatusTip("Open nix file")
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self._file_open_action.setShortcut(QKeySequence("Ctrl+o"))
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self._file_open_action.triggered.connect(self.on_file_open)
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self._file_close_action = QAction(cnst.get_icon("nixview_close"), "Close", self)
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self._file_close_action.setStatusTip("Close current nix file")
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self._file_close_action.setShortcut(QKeySequence("Ctrl+w"))
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self._file_close_action.setEnabled(False)
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self._file_close_action.triggered.connect(self.on_file_close)
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self._quit_action = QAction(cnst.get_icon("nixview_quit"), "Quit", self)
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self._quit_action.setStatusTip("Close current file and quit")
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self._quit_action.setShortcut(QKeySequence("Ctrl+q"))
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self._quit_action.triggered.connect(self.on_quit)
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self._plot_action = QAction(cnst.get_icon("nix_data_array"), "Plot", self)
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self._plot_action.setStatusTip("Plot currently selected entity")
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self._plot_action.setShortcut(QKeySequence("Ctrl+p"))
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self._plot_action.setEnabled(False)
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self._plot_action.triggered.connect(self.on_item_plot)
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self._table_action = QAction(cnst.get_icon("nix_data_frame"), "Show table", self)
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self._table_action.setStatusTip("Show data as table")
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self._table_action.setShortcut(QKeySequence("Ctrl+t"))
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self._table_action.setEnabled(False)
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self._table_action.triggered.connect(self.on_item_show_table)
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self._about_action = QAction("about")
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self._about_action.setStatusTip("Show about dialog")
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self._about_action.setEnabled(True)
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self._about_action.triggered.connect(self.on_about)
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self._help_action = QAction(cnst.get_icon("nixview_help"), "help")
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self._help_action.setStatusTip("Show help dialog")
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self._table_action.setShortcut(QKeySequence("F1"))
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self._help_action.setEnabled(True)
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self._help_action.triggered.connect(self.on_help)
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self.create_toolbar()
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self.create_menu()
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def create_toolbar(self):
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self._toolbar = QToolBar("My main toolbar")
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#self._toolbar.setStyleSheet("QToolButton:!hover {background-color:none}")
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self._toolbar.setAllowedAreas(Qt.LeftToolBarArea | Qt.TopToolBarArea)
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self._toolbar.setIconSize(QSize(32, 32))
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self._toolbar.addAction(self._file_open_action)
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self._toolbar.addAction(self._file_close_action)
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self._toolbar.addSeparator()
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self._toolbar.addAction(self._plot_action)
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self._toolbar.addAction(self._table_action)
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self._toolbar.addAction(self._help_action)
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empty = QWidget()
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empty.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
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self._toolbar.addWidget(empty)
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self._toolbar.addSeparator()
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self._toolbar.addAction(self._quit_action)
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self.addToolBar(Qt.LeftToolBarArea, self._toolbar)
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def create_menu(self):
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menu = self.menuBar()
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file_menu = menu.addMenu("&File")
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file_menu.addAction(self._file_open_action)
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file_menu.addAction(self._file_close_action)
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file_menu.addSeparator()
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file_menu.addAction(self._quit_action)
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plot_menu = menu.addMenu("&Plot")
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plot_menu.addAction(self._plot_action)
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plot_menu.addAction(self._table_action)
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help_menu = menu.addMenu("&Help")
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help_menu.addAction(self._about_action)
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help_menu.addAction(self._help_action)
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self.setMenuBar(menu)
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def _update_recent_files(self, filename):
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settings = QSettings(cnst.organization, cnst.application)
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recent_file_max_count = settings.value(cnst.settings_recent_file_max_count_key, 10, type=int)
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filenames = settings.value(cnst.settings_recent_files_key, [])
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new_filenames = [filename]
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if filename in filenames:
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del filenames[filenames.index(filename)]
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new_filenames.extend(filenames)
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settings.setValue(cnst.settings_recent_files_key, new_filenames[:recent_file_max_count])
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del settings
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def open_file(self, filename):
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self._current_item = None
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success, msg = self._file_handler.open(filename)
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self.statusBar().showMessage(msg, 5000)
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if success:
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self._file_close_action.setEnabled(success)
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self._cw.show_file_content()
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self._update_recent_files(filename)
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def on_file_open(self, s):
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dlg = QFileDialog(self, 'Open nix data file', '', "NIX files (*.h5 *.nix)")
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dlg.setFileMode(QFileDialog.ExistingFile)
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filenames = None
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if dlg.exec_():
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filenames = dlg.selectedFiles()
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self.open_file(filenames[0])
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def on_file_close(self, s):
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self._file_handler.close()
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self._cw.reset()
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self._current_item = None
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self._file_close_action.setEnabled(False)
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self.statusBar().showMessage("Successfully closed current file", 1000)
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def on_quit(self, s):
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self._file_handler.close()
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sys.exit()
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def on_item_plot(self, s):
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if self._current_item is not None:
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self._cw.plot_item(self._current_item.node_descriptor)
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def on_item_show_table(self, s):
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if self._current_item is not None:
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self._cw.show_table(self._current_item.node_descriptor)
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def on_plot_error(self, s):
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self.statusBar().showMessage(s, 5000)
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def on_about(self, e):
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about = AboutDialog(self)
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about.show()
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def on_help(self, e):
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about = HelpDialog(self)
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about.show() |