jgrewe/nixview-python
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[communicator] add signal for plotting errors and use it

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This commit is contained in:
Jan Grewe 2021-01-18 10:35:48 +01:00
parent b68f8bbc7a
commit c8fe616c44
3 changed files with 30 additions and 24 deletions
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2
nixview/communicator.py
View File

@ -8,5 +8,7 @@ class Communicate(QObject):
open_recent = pyqtSignal(str)
item_selected = pyqtSignal(NixTreeItem)
plot_error = pyqtSignal(str)
communicator = Communicate()

41
nixview/ui/mainwindow.py
View File

@ -1,7 +1,6 @@
import os
import sys
from PyQt5.QtWidgets import QWidget, QFileDialog, QMainWindow, QMenuBar, QToolBar, QAction, QStatusBar, QSizePolicy
from PyQt5.QtGui import QIcon, QKeySequence
from PyQt5.QtGui import QKeySequence
from PyQt5.QtCore import QSize, QSettings, Qt
from nixview.util.file_handler import FileHandler, NodeType
@ -13,7 +12,7 @@ from nixview.ui.helpdialog import HelpDialog
class NixView(QMainWindow):
def __init__(self, *args, **kwargs):
super(NixView, self).__init__(*args, **kwargs)
self._current_item = None
@ -24,12 +23,13 @@ class NixView(QMainWindow):
self.setStatusBar(QStatusBar(self))
self.setMenuBar(QMenuBar(self))
self.create_actions()
self._cw = CentralWidget(self)
self.setCentralWidget(self._cw)
comm.communicator.open_recent.connect(self.on_open_recent)
comm.communicator.item_selected.connect(self.on_item_selected)
comm.communicator.plot_error.connect(self.on_plot_error)
self.show()
def on_open_recent(self, event):
@ -41,51 +41,51 @@ class NixView(QMainWindow):
enable = current_item_type == NodeType.MultiTag or current_item_type == NodeType.DataArray or current_item_type == NodeType.Tag
self._plot_action.setEnabled(enable)
self._table_action.setEnabled(enable)
def create_actions(self):
self._file_open_action = QAction(cnst.get_icon("nixview_open"), "Open", self)
self._file_open_action.setStatusTip("Open nix file")
self._file_open_action.setShortcut(QKeySequence("Ctrl+o"))
self._file_open_action.triggered.connect(self.on_file_open)
self._file_close_action = QAction(cnst.get_icon("nixview_close"), "Close", self)
self._file_close_action.setStatusTip("Close current nix file")
self._file_close_action.setShortcut(QKeySequence("Ctrl+w"))
self._file_close_action.setEnabled(False)
self._file_close_action.triggered.connect(self.on_file_close)
self._quit_action = QAction(cnst.get_icon("nixview_quit"), "Quit", self)
self._quit_action.setStatusTip("Close current file and quit")
self._quit_action.setShortcut(QKeySequence("Ctrl+q"))
self._quit_action.triggered.connect(self.on_quit)
self._plot_action = QAction(cnst.get_icon("nix_data_array"), "Plot", self)
self._plot_action.setStatusTip("Plot currently selected entity")
self._plot_action.setShortcut(QKeySequence("Ctrl+p"))
self._plot_action.setEnabled(False)
self._plot_action.triggered.connect(self.on_item_plot)
self._table_action = QAction(cnst.get_icon("nix_data_frame"), "Show table", self)
self._table_action.setStatusTip("Show data as table")
self._table_action.setShortcut(QKeySequence("Ctrl+t"))
self._table_action.setEnabled(False)
# self._table_action.triggered.connect(self.on_file_close)
self._about_action = QAction("about")
self._about_action.setStatusTip("Show about dialog")
self._about_action.setEnabled(True)
self._about_action.triggered.connect(self.on_about)
self._help_action = QAction(cnst.get_icon("nixview_help"), "help")
self._help_action.setStatusTip("Show help dialog")
self._table_action.setShortcut(QKeySequence("F1"))
self._help_action.setEnabled(True)
self._help_action.triggered.connect(self.on_help)
self.create_toolbar()
self.create_menu()
def create_toolbar(self):
self._toolbar = QToolBar("My main toolbar")
#self._toolbar.setStyleSheet("QToolButton:!hover {background-color:none}")
@ -123,7 +123,7 @@ class NixView(QMainWindow):
help_menu.addAction(self._about_action)
help_menu.addAction(self._help_action)
self.setMenuBar(menu)
def _update_recent_files(self, filename):
settings = QSettings(cnst.organization, cnst.application)
recent_file_max_count = settings.value(cnst.settings_recent_file_max_count_key, 10, type=int)
@ -134,7 +134,7 @@ class NixView(QMainWindow):
new_filenames.extend(filenames)
settings.setValue(cnst.settings_recent_files_key, new_filenames[:recent_file_max_count])
del settings
def open_file(self, filename):
self._current_item = None
success, msg = self._file_handler.open(filename)
@ -151,7 +151,7 @@ class NixView(QMainWindow):
if dlg.exec_():
filenames = dlg.selectedFiles()
self.open_file(filenames[0])
def on_file_close(self, s):
self._file_handler.close()
self._cw.reset()
@ -162,15 +162,18 @@ class NixView(QMainWindow):
def on_quit(self, s):
self._file_handler.close()
sys.exit()
def on_item_plot(self, s):
if self._current_item is not None:
self._cw.plot_item(self._current_item.node_descriptor)
def on_plot_error(self, s):
self.statusBar().showMessage(s, 5000)
def on_about(self, e):
about = AboutDialog(self)
about.show()
def on_help(self, e):
about = HelpDialog(self)
about.show()

11
nixview/ui/plotscreen.py
View File

@ -11,6 +11,7 @@ from matplotlib.widgets import Slider
from nixview.util.file_handler import FileHandler
from nixview.util.dataview import DataView
from nixview.communicator import communicator
def create_label(entity):
@ -337,19 +338,19 @@ class PlotScreen(QWidget):
self.layout().addWidget(close_btn)
self._data_view = None
def on_close(self):
self.close_signal.emit()
def plot(self, item):
print("plot!", item)
print(item.entity_type, item.shape)
try:
self._data_view = DataView(item, self._file_handler)
except ValueError as e:
print("error in plotscreen.plot", e)
communicator.plot_error.emit("error in plotscreen.plot %s" % e)
return
self._data_view.request_more() # TODO this is just a test, needs to be removed
print(self._data_view)