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#include "PythonCompleter.h"
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#include <QStringListModel>
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#include "PythonCompleterPopup.h"
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#include "SimpleConsole.h"
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#include <QApplication>
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#include <QFile>
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#include <QFileInfo>
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#include <qlop.h>
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PythonCompleter::PythonCompleter(SimpleConsole *parent, PythonQtObjectPtr context) :
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QCompleter(parent)
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{
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// use given pythonqt-context
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_context = PythonQt::self()->createUniqueModule();
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_parentContext = context;
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// initialize python
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QString fileName = QString(PYMODULES)+"/PythonCompleter.py";
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QString code;
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QFile file;
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QFileInfo fileinfo;
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code.clear();
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file.setFileName(fileName);
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fileinfo.setFile(fileName);
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if(!fileinfo.suffix().compare("py"))
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{
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file.open(QIODevice::ReadOnly);
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QTextStream filestrm(&file);
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while(!filestrm.atEnd())code.append(filestrm.readLine()+"\n");
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_context.evalScript(code);
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file.close();
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// this->mainContext->evalFile(pathList.at(i));
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}
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//_context.evalFile(QString(PYMODULES)+"/PythonCompleter.py");
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// generate string list model
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// (which we will change dynamically later)
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setModel( new QStringListModel(this) );
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// generate the popup
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// (usually this is done automatically, but
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// we have some small modifications)
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PythonCompleterPopup *pythonCompleterPopup = new PythonCompleterPopup;
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setPopup( pythonCompleterPopup );
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// notify me when the popup is shown/hidden...
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connect(pythonCompleterPopup, SIGNAL(aboutToShow()),
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this, SLOT(popupAboutToShow()));
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connect(pythonCompleterPopup, SIGNAL(aboutToHide()),
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this, SLOT(popupAboutToHide()));
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// and finally update once when the autocompletion is started
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connect(parent, SIGNAL(autocompletionRequested()),
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this, SLOT(updateCompletions()));
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}
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void PythonCompleter::updateCompletions()
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{
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//qDebug() << "updateCompletions called";
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SimpleConsole* textEditParent = qobject_cast<SimpleConsole*>(parent());
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// get the code and truncate it to the cursor position
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QString codeBlock = textEditParent->currentCommand();
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QTextCursor cursor = textEditParent->textCursor();
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cursor.movePosition(QTextCursor::End);
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int cursorPosFromRight = cursor.position() - textEditParent->textCursor().position();
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codeBlock.truncate( codeBlock.length() - cursorPosFromRight );
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// as a precaution disconnect connection (endless loop on error!)
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bool wasConnected =
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disconnect(textEditParent, SIGNAL(cursorPositionChanged()),
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this, SLOT(updateCompletions()));
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// call python function to determine list of possible completions
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QVariantList args;
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args.append(codeBlock);
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args.append(QVariant::fromValue(_parentContext));
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QVariant completions = _context.call("autocompleteCode", args);
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if( wasConnected )
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connect(textEditParent, SIGNAL(cursorPositionChanged()),
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this, SLOT(updateCompletions()));
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// set possible completions
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QStringListModel* listModel = qobject_cast<QStringListModel*>( model() );
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//qDebug() << "PythonCompleter: code = " << codeBlock << "\n completions = " << completions.toStringList() << "\n";
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listModel->setStringList( completions.toStringList() );
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}
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void PythonCompleter::popupAboutToShow()
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{
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//qDebug() << "popup about to show";
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SimpleConsole* textEditParent = qobject_cast<SimpleConsole*>(parent());
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// update completions when the cursor changes
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connect(textEditParent, SIGNAL(cursorPositionChanged()),
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this, SLOT(updateCompletions()));
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}
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void PythonCompleter::popupAboutToHide()
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{
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//qDebug() << "popup about to hide";
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SimpleConsole* textEditParent = qobject_cast<SimpleConsole*>(parent());
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// stop updating completions
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disconnect(textEditParent, SIGNAL(cursorPositionChanged()),
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this, SLOT(updateCompletions()));
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}
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