Fix up the editor to show the margins nicely, add loading of files

src/ukatali/app.py

@@ -1,8 +1,17 @@
 from PyQt5 import QtWidgets
-from mainwindow import MainWindow
+from ukatali.mainwindow import MainWindow
 
 
-app = QtWidgets.QApplication([])
-window = MainWindow()
-window.show()
-app.exec()
+def run_ukutali():
+    app = QtWidgets.QApplication([])
+    app.setApplicationDisplayName('Ukatali')
+    app.setApplicationName('Ukatali')
+    app.setOrganizationDomain('info.snyman')
+    app.setOrganizationName('Snyman')
+    window = MainWindow()
+    window.show()
+    app.exec()
+
+
+if __name__ == '__main__':
+    run_ukutali()

src/ukatali/mainwindow.py

@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
+from pathlib import Path
 from PyQt5 import QtCore, QtGui, QtWidgets, QtWebEngineWidgets, Qsci
 
+OPEN_COUNT = 0
+
 
 class MainWindow(QtWidgets.QMainWindow):
     def __init__(self, parent=None):
@@ -17,8 +20,14 @@ class MainWindow(QtWidgets.QMainWindow):
         self.editorLayout.setSpacing(0)
         self.editorLayout.setObjectName("editorLayout")
         self.fileEditor = Qsci.QsciScintilla(self.editorWidget)
-        self.fileEditor.setColor(QtWidgets.QApplication.palette().windowText().color())
         self.fileEditor.setFont(QtGui.QFont("monospace"))
+        self.fileEditor.setColor(QtWidgets.QApplication.palette().windowText().color())
+        self.fileEditor.setCaretWidth(2)
+        self.fileEditor.setCaretForegroundColor(QtWidgets.QApplication.palette().windowText().color())
+        self.fileEditor.setMarginsBackgroundColor(QtWidgets.QApplication.palette().window().color())
+        self.fileEditor.setMarginsForegroundColor(QtWidgets.QApplication.palette().windowText().color())
+        self.fileEditor.setMarginLineNumbers(1, True)
+        self.fileEditor.setMarginWidth(1, "000")
         self.fileEditor.setObjectName("fileEditor")
         self.editorLayout.addWidget(self.fileEditor)
         self.setCentralWidget(self.editorWidget)
@@ -154,7 +163,8 @@ class MainWindow(QtWidgets.QMainWindow):
         self.cutAction.triggered.connect(self.fileEditor.cut)
         self.copyAction.triggered.connect(self.fileEditor.copy)
         self.pasteAction.triggered.connect(self.fileEditor.paste)
-        QtCore.QMetaObject.connectSlotsByName(self)
+        # QtCore.QMetaObject.connectSlotsByName(self)
+        self.openAction.triggered.connect(self.on_open_clicked)
 
     def retranslate_ui(self):
         _translate = QtCore.QCoreApplication.translate
@@ -205,3 +215,20 @@ class MainWindow(QtWidgets.QMainWindow):
         self.exitAction.setText(_translate("MainWindow", "E&xit"))
         self.exitAction.setToolTip(_translate("MainWindow", "Quit Ukatali"))
         self.exitAction.setShortcut(_translate("MainWindow", "Alt+F4"))
+
+    def on_open_clicked(self):
+        """Open the file"""
+        if QtCore.QSettings().value('files/last-directory'):
+            last_directory = QtCore.QSettings().value('files/last-directory')
+        else:
+            last_directory = ''
+        filename = QtWidgets.QFileDialog.getOpenFileName(self, "Open file", last_directory,
+                                                         filter="All files *")
+        if isinstance(filename, tuple):
+            filename = filename[0]
+        if not filename:
+            return
+        file_path = Path(filename)
+        if file_path.exists():
+            QtCore.QSettings().setValue('files/last-directory', str(file_path.parent))
+            self.fileEditor.setText(file_path.open().read())