eric7/Plugins/DocumentationPlugins/Ericdoc/EricdocExecDialog.py

branch
eric7
changeset 8312
800c432b34c8
parent 8218
7c09585bd960
child 8318
962bce857696
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric7/Plugins/DocumentationPlugins/Ericdoc/EricdocExecDialog.py	Sat May 15 18:45:04 2021 +0200
@@ -0,0 +1,173 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2003 - 2021 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a dialog to show the output of the ericdoc process.
+"""
+
+import os.path
+
+from PyQt5.QtCore import QProcess, QTimer
+from PyQt5.QtWidgets import QDialog, QDialogButtonBox
+
+from E5Gui import E5MessageBox
+
+from .Ui_EricdocExecDialog import Ui_EricdocExecDialog
+
+import Preferences
+
+
+class EricdocExecDialog(QDialog, Ui_EricdocExecDialog):
+    """
+    Class implementing a dialog to show the output of the ericdoc process.
+    
+    This class starts a QProcess and displays a dialog that
+    shows the output of the documentation command process.
+    """
+    def __init__(self, cmdname, parent=None):
+        """
+        Constructor
+        
+        @param cmdname name of the documentation generator (string)
+        @param parent parent widget of this dialog (QWidget)
+        """
+        super().__init__(parent)
+        self.setModal(True)
+        self.setupUi(self)
+        
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Close).setEnabled(False)
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Cancel).setDefault(True)
+        
+        self.process = None
+        self.cmdname = cmdname
+        
+    def start(self, args, fn):
+        """
+        Public slot to start the ericdoc command.
+        
+        @param args commandline arguments for ericdoc program (list of strings)
+        @param fn filename or dirname to be processed by ericdoc program
+            (string)
+        @return flag indicating the successful start of the process (boolean)
+        """
+        self.errorGroup.hide()
+        
+        self.filename = fn
+        if os.path.isdir(self.filename):
+            dname = os.path.abspath(self.filename)
+            fname = "."
+            if os.path.exists(os.path.join(dname, "__init__.py")):
+                fname = os.path.basename(dname)
+                dname = os.path.dirname(dname)
+        else:
+            dname = os.path.dirname(self.filename)
+            fname = os.path.basename(self.filename)
+        
+        self.contents.clear()
+        self.errors.clear()
+        
+        program = args[0]
+        del args[0]
+        args.append(fname)
+        
+        self.process = QProcess()
+        self.process.setWorkingDirectory(dname)
+        
+        self.process.readyReadStandardOutput.connect(self.__readStdout)
+        self.process.readyReadStandardError.connect(self.__readStderr)
+        self.process.finished.connect(self.__finish)
+        
+        self.setWindowTitle(
+            self.tr('{0} - {1}').format(self.cmdname, self.filename))
+        self.process.start(program, args)
+        procStarted = self.process.waitForStarted(5000)
+        if not procStarted:
+            E5MessageBox.critical(
+                self,
+                self.tr('Process Generation Error'),
+                self.tr(
+                    'The process {0} could not be started. '
+                    'Ensure, that it is in the search path.'
+                ).format(program))
+        return procStarted
+        
+    def on_buttonBox_clicked(self, button):
+        """
+        Private slot called by a button of the button box clicked.
+        
+        @param button button that was clicked (QAbstractButton)
+        """
+        if button == self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Close
+        ):
+            self.accept()
+        elif button == self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Cancel
+        ):
+            self.__finish()
+        
+    def __finish(self):
+        """
+        Private slot called when the process finished.
+        
+        It is called when the process finished or
+        the user pressed the button.
+        """
+        if self.process is not None:
+            if self.process.state() != QProcess.ProcessState.NotRunning:
+                self.process.terminate()
+                QTimer.singleShot(2000, self.process.kill)
+                self.process.waitForFinished(3000)
+            if self.process.exitStatus() == QProcess.ExitStatus.CrashExit:
+                self.contents.insertPlainText(
+                    self.tr('\n{0} crashed.\n').format(self.cmdname))
+        
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Close).setEnabled(True)
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Cancel).setEnabled(False)
+        self.buttonBox.button(
+            QDialogButtonBox.StandardButton.Close).setDefault(True)
+        
+        self.process = None
+        
+        self.contents.insertPlainText(
+            self.tr('\n{0} finished.\n').format(self.cmdname))
+        self.contents.ensureCursorVisible()
+        
+    def __readStdout(self):
+        """
+        Private slot to handle the readyReadStandardOutput signal.
+        
+        It reads the output of the process, formats it and inserts it into
+        the contents pane.
+        """
+        self.process.setReadChannel(QProcess.ProcessChannel.StandardOutput)
+        
+        while self.process.canReadLine():
+            s = str(self.process.readLine(),
+                    Preferences.getSystem("IOEncoding"),
+                    'replace')
+            self.contents.insertPlainText(s)
+            self.contents.ensureCursorVisible()
+        
+    def __readStderr(self):
+        """
+        Private slot to handle the readyReadStandardError signal.
+        
+        It reads the error output of the process and inserts it into the
+        error pane.
+        """
+        self.process.setReadChannel(QProcess.ProcessChannel.StandardError)
+        
+        while self.process.canReadLine():
+            self.errorGroup.show()
+            s = str(self.process.readLine(),
+                    Preferences.getSystem("IOEncoding"),
+                    'replace')
+            self.errors.insertPlainText(s)
+            self.errors.ensureCursorVisible()

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