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263 lines
11 KiB
Python
263 lines
11 KiB
Python
# -*- coding:utf-8 -*-
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"""
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/***************************************************************************
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Python Console for QGIS
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-------------------
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begin : 2012-09-10
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copyright : (C) 2012 by Salvatore Larosa
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email : lrssvtml (at) gmail (dot) com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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Some portions of code were taken from https://code.google.com/p/pydee/
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"""
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from qgis.PyQt.QtCore import Qt, QCoreApplication, QThread, QMetaObject, Q_RETURN_ARG, Q_ARG, QObject, pyqtSlot
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from qgis.PyQt.QtGui import QColor, QFont, QKeySequence, QFontDatabase
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from qgis.PyQt.QtWidgets import QGridLayout, QSpacerItem, QSizePolicy, QShortcut, QMenu, QApplication
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from qgis.PyQt.Qsci import QsciScintilla
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from qgis.core import Qgis, QgsApplication, QgsSettings
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from qgis.gui import QgsMessageBar, QgsCodeEditor
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from .console_base import QgsPythonConsoleBase
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import sys
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class writeOut(QObject):
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ERROR_COLOR = "#e31a1c"
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def __init__(self, shellOut, out=None, style=None):
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"""
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This class allows writing to stdout and stderr
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"""
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super().__init__()
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self.sO = shellOut
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self.out = None
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self.style = style
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self.fire_keyboard_interrupt = False
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@pyqtSlot(str)
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def write(self, m):
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# This manage the case when console is called from another thread
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if QThread.currentThread() != QCoreApplication.instance().thread():
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QMetaObject.invokeMethod(self, "write", Qt.QueuedConnection, Q_ARG(str, m))
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return
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if self.style == "_traceback":
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# Show errors in red
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stderrColor = QColor(self.sO.settings.value("pythonConsole/stderrFontColor", QColor(self.ERROR_COLOR)))
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self.sO.SendScintilla(QsciScintilla.SCI_STYLESETFORE, 0o01, stderrColor)
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self.sO.SendScintilla(QsciScintilla.SCI_STYLESETITALIC, 0o01, True)
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self.sO.SendScintilla(QsciScintilla.SCI_STYLESETBOLD, 0o01, True)
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pos = self.sO.SendScintilla(QsciScintilla.SCI_GETCURRENTPOS)
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self.sO.SendScintilla(QsciScintilla.SCI_STARTSTYLING, pos, 31)
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self.sO.append(m)
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self.sO.SendScintilla(QsciScintilla.SCI_SETSTYLING, len(m), 0o01)
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else:
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self.sO.append(m)
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if self.out:
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self.out.write(m)
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self.move_cursor_to_end()
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if self.style != "_traceback":
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self.sO.repaint()
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if self.fire_keyboard_interrupt:
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self.fire_keyboard_interrupt = False
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raise KeyboardInterrupt
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def move_cursor_to_end(self):
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"""Move cursor to end of text"""
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line, index = self.get_end_pos()
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self.sO.setCursorPosition(line, index)
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self.sO.ensureCursorVisible()
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self.sO.ensureLineVisible(line)
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def get_end_pos(self):
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"""Return (line, index) position of the last character"""
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line = self.sO.lines() - 1
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return (line, len(self.sO.text(line)))
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def flush(self):
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pass
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def isatty(self):
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return False
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class ShellOutputScintilla(QgsPythonConsoleBase):
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def __init__(self, parent=None):
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super(ShellOutputScintilla, self).__init__(parent)
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self.parent = parent
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self.shell = self.parent.shell
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self.settings = QgsSettings()
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# Creates layout for message bar
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self.layout = QGridLayout(self)
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self.layout.setContentsMargins(0, 0, 0, 0)
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spacerItem = QSpacerItem(20, 40, QSizePolicy.Minimum, QSizePolicy.Expanding)
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self.layout.addItem(spacerItem, 1, 0, 1, 1)
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# messageBar instance
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self.infoBar = QgsMessageBar()
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sizePolicy = QSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
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self.infoBar.setSizePolicy(sizePolicy)
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self.layout.addWidget(self.infoBar, 0, 0, 1, 1)
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sys.stdout = writeOut(self, sys.stdout)
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sys.stderr = writeOut(self, sys.stderr, "_traceback")
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self.insertInitText()
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self.refreshSettingsOutput()
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self.setReadOnly(True)
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self.setCaretWidth(0) # NO (blinking) caret in the output
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self.setMinimumHeight(120)
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self.setWrapMode(QsciScintilla.WrapCharacter)
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self.SendScintilla(QsciScintilla.SCI_SETHSCROLLBAR, 0)
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self.runScut = QShortcut(QKeySequence(Qt.CTRL + Qt.Key_E), self)
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self.runScut.setContext(Qt.WidgetShortcut)
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self.runScut.activated.connect(self.enteredSelected)
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# Reimplemented copy action to prevent paste prompt (>>>,...) in command view
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self.copyShortcut = QShortcut(QKeySequence.Copy, self)
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self.copyShortcut.setContext(Qt.WidgetWithChildrenShortcut)
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self.copyShortcut.activated.connect(self.copy)
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self.selectAllShortcut = QShortcut(QKeySequence.SelectAll, self)
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self.selectAllShortcut.setContext(Qt.WidgetWithChildrenShortcut)
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self.selectAllShortcut.activated.connect(self.selectAll)
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def insertInitText(self):
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txtInit = QCoreApplication.translate("PythonConsole",
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"Python Console\n"
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"Use iface to access QGIS API interface or Type help(iface) for more info\n"
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"Security warning: typing commands from an untrusted source can harm your computer")
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# some translation string for the console header ends without '\n'
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# and the first command in console will be appended at the header text.
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# The following code add a '\n' at the end of the string if not present.
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if txtInit.endswith('\n'):
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self.setText(txtInit)
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else:
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self.setText(txtInit + '\n')
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def refreshSettingsOutput(self):
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# Set Python lexer
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self.setLexers()
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self.setSelectionForegroundColor(self.color(QgsCodeEditor.ColorRole.SelectionForeground))
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self.setSelectionBackgroundColor(self.color(QgsCodeEditor.ColorRole.SelectionBackground))
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self.setMarginsForegroundColor(self.color(QgsCodeEditor.ColorRole.MarginForeground))
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self.setMarginsBackgroundColor(self.color(QgsCodeEditor.ColorRole.MarginBackground))
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self.setCaretLineBackgroundColor(self.color(QgsCodeEditor.ColorRole.CaretLine))
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self.setCaretForegroundColor(self.color(QgsCodeEditor.ColorRole.Cursor))
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def clearConsole(self):
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self.setText('')
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self.insertInitText()
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self.shell.setFocus()
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def contextMenuEvent(self, e):
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menu = QMenu(self)
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menu.addAction(self.iconHideTool,
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QCoreApplication.translate("PythonConsole", "Hide/Show Toolbar"),
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self.hideToolBar)
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menu.addSeparator()
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showEditorAction = menu.addAction(
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self.iconShowEditor,
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QCoreApplication.translate("PythonConsole", "Show Editor"),
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self.showEditor)
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menu.addSeparator()
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runAction = menu.addAction(self.iconRun,
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QCoreApplication.translate("PythonConsole", "Enter Selected"),
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self.enteredSelected,
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QKeySequence(Qt.CTRL + Qt.Key_E))
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clearAction = menu.addAction(self.iconClear,
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QCoreApplication.translate("PythonConsole", "Clear Console"),
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self.clearConsole)
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pyQGISHelpAction = menu.addAction(self.iconPyQGISHelp,
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QCoreApplication.translate("PythonConsole", "Search Selected in PyQGIS docs"),
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self.searchSelectedTextInPyQGISDocs)
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menu.addSeparator()
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copyAction = menu.addAction(
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self.iconCopy,
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QCoreApplication.translate("PythonConsole", "Copy"),
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self.copy, QKeySequence.Copy)
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selectAllAction = menu.addAction(
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QCoreApplication.translate("PythonConsole", "Select All"),
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self.selectAll, QKeySequence.SelectAll)
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menu.addSeparator()
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menu.addAction(self.iconSettings,
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QCoreApplication.translate("PythonConsole", "Options…"),
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self.parent.openSettings)
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runAction.setEnabled(False)
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clearAction.setEnabled(False)
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copyAction.setEnabled(False)
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pyQGISHelpAction.setEnabled(False)
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selectAllAction.setEnabled(False)
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showEditorAction.setEnabled(True)
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if self.hasSelectedText():
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runAction.setEnabled(True)
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copyAction.setEnabled(True)
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pyQGISHelpAction.setEnabled(True)
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if not self.text(3) == '':
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selectAllAction.setEnabled(True)
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clearAction.setEnabled(True)
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if self.parent.tabEditorWidget.isVisible():
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showEditorAction.setEnabled(False)
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menu.exec_(self.mapToGlobal(e.pos()))
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def hideToolBar(self):
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tB = self.parent.toolBar
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tB.hide() if tB.isVisible() else tB.show()
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self.shell.setFocus()
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def showEditor(self):
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Ed = self.parent.splitterObj
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if not Ed.isVisible():
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Ed.show()
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self.parent.showEditorButton.setChecked(True)
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self.shell.setFocus()
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def copy(self):
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"""Copy text to clipboard... or keyboard interrupt"""
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if self.hasSelectedText():
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text = self.selectedText()
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text = text.replace('>>> ', '').replace('... ', '').strip() # removing prompts
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QApplication.clipboard().setText(text)
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else:
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raise KeyboardInterrupt
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def enteredSelected(self):
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cmd = self.selectedText()
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self.shell.insertFromDropPaste(cmd)
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self.shell.entered()
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def keyPressEvent(self, e):
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# empty text indicates possible shortcut key sequence so stay in output
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txt = e.text()
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if len(txt) and txt >= " ":
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self.shell.append(txt)
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self.shell.move_cursor_to_end()
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self.shell.setFocus()
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e.ignore()
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else:
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# possible shortcut key sequence, accept it
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e.accept()
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def widgetMessageBar(self, iface, text):
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timeout = iface.messageTimeout()
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self.infoBar.pushMessage(text, Qgis.Info, timeout)
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