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// SPDX-FileCopyrightText: Copyright (c) Kitware Inc.
// SPDX-FileCopyrightText: Copyright (c) Sandia Corporation
// SPDX-License-Identifier: BSD-3-Clause
#include "pqPythonTextArea.h"
#include "pqPythonFileIO.h"
#include "pqPythonLineNumberArea.h"
#include "pqPythonSyntaxHighlighter.h"
#include <QHBoxLayout>
#include <QTextEdit>
//-----------------------------------------------------------------------------
pqPythonTextArea::pqPythonTextArea(QWidget* parent)
: QWidget(parent)
, TextEdit(new QTextEdit(this))
, LineNumberArea(new pqPythonLineNumberArea(this, *this->TextEdit))
, SyntaxHighlighter(new pqPythonSyntaxHighlighter(this, *this->TextEdit))
, FileIO(new pqPythonFileIO(this, *this->TextEdit))
{
this->TextEdit->setUndoRedoEnabled(false);
this->TextEdit->setAcceptDrops(false);
this->TextEdit->setAcceptRichText(false);
this->TextEdit->setContextMenuPolicy(Qt::NoContextMenu);
// Install the Undo/Redo event filter
this->TextEdit->installEventFilter(this);
// Prepare the HBoxLayout for the text widget and the line area widget
QHBoxLayout* layout = new QHBoxLayout();
layout->addWidget(this->LineNumberArea);
layout->addWidget(this->TextEdit);
layout->setContentsMargins(0, 0, 0, 0);
layout->setSpacing(0);
this->setLayout(layout);
this->connect(this->TextEdit.data(), &QTextEdit::cursorPositionChanged,
[this]() { this->LineNumberArea->update(); });
this->connect(this->TextEdit->document(), &QTextDocument::blockCountChanged,
[this](int) { this->LineNumberArea->updateGeometry(); });
this->connect(this->TextEdit->verticalScrollBar(), &QScrollBar::valueChanged,
[this](int) { this->LineNumberArea->update(); });
this->connect(this->TextEdit.data(), &QTextEdit::textChanged, [this]() {
const QString text = this->TextEdit->toPlainText();
const int cursorPosition = this->TextEdit->textCursor().position();
// Push a new command to the stack (which calls redo, thus applying the command)
this->UndoStack.push(new pqPythonUndoCommand(
*this->TextEdit, this->SyntaxHighlighter, this->lastEntry, { text, cursorPosition }));
// Save the last entry
this->lastEntry = { text, cursorPosition };
const int vScrollBarValue = this->TextEdit->verticalScrollBar()->value();
this->TextEdit->verticalScrollBar()->setValue(vScrollBarValue);
const int hScrollBarValue = this->TextEdit->horizontalScrollBar()->value();
this->TextEdit->horizontalScrollBar()->setValue(hScrollBarValue);
this->FileIO->contentChanged();
});
this->connect(
this->FileIO.data(), &pqPythonFileIO::fileSaved, this, &pqPythonTextArea::fileSaved);
this->connect(
this->FileIO.data(), &pqPythonFileIO::fileOpened, this, &pqPythonTextArea::fileOpened);
this->connect(
this->FileIO.data(), &pqPythonFileIO::bufferErased, this, &pqPythonTextArea::bufferErased);
this->connect(
this->FileIO.data(), &pqPythonFileIO::contentChanged, this, &pqPythonTextArea::contentChanged);
this->connect(
this->FileIO.data(), &pqPythonFileIO::bufferErased, [this]() { this->UndoStack.clear(); });
}
//-----------------------------------------------------------------------------
#define TEST_SEQUENCE(EVENT, MODIFIER, KEY) \
((EVENT)->modifiers() & (MODIFIER)) && (EVENT)->key() == (KEY)
bool pqPythonTextArea::eventFilter(QObject* obj, QEvent* event)
{
if (event->type() == QEvent::KeyPress)
{
QKeyEvent* keyEvent = static_cast<QKeyEvent*>(event);
if (keyEvent->matches(QKeySequence::Undo))
{
this->UndoStack.undo();
this->LineNumberArea->update();
return true;
}
else if (keyEvent->matches(QKeySequence::Redo))
{
this->UndoStack.redo();
this->LineNumberArea->update();
return true;
}
}
return QObject::eventFilter(obj, event);
}
#undef TEST_SEQUENCE
//-----------------------------------------------------------------------------
bool pqPythonTextArea::saveOnClose()
{
return this->FileIO->saveOnClose();
}
//-----------------------------------------------------------------------------
bool pqPythonTextArea::isEmpty() const
{
return this->TextEdit->toPlainText().isEmpty();
}
//-----------------------------------------------------------------------------
bool pqPythonTextArea::isDirty() const
{
return this->FileIO->isDirty();
}
//-----------------------------------------------------------------------------
void pqPythonTextArea::setText(const QString& text)
{
this->TextEdit->setPlainText(text);
this->FileIO->setModified(true);
}
//-----------------------------------------------------------------------------
bool pqPythonTextArea::openFile(const QString& filename, vtkTypeUInt32 location)
{
return this->FileIO->openFile(filename, location);
}
//-----------------------------------------------------------------------------
void pqPythonTextArea::setDefaultSaveDirectory(const QString& dir)
{
this->FileIO->setDefaultSaveDirectory(dir);
}
//-----------------------------------------------------------------------------
const QString& pqPythonTextArea::getFilename() const
{
return this->FileIO->getFilename();
}
//-----------------------------------------------------------------------------
void pqPythonTextArea::connectActions(pqPythonEditorActions& actions)
{
pqPythonEditorActions::connect(actions, this->TextEdit.data());
pqPythonEditorActions::connect(actions, this->FileIO.data());
pqPythonEditorActions::connect(actions, &this->UndoStack);
}
//-----------------------------------------------------------------------------
void pqPythonTextArea::disconnectActions(pqPythonEditorActions& actions)
{
pqPythonEditorActions::disconnect(actions, this->TextEdit.data());
pqPythonEditorActions::disconnect(actions, this->FileIO.data());
pqPythonEditorActions::disconnect(actions, &this->UndoStack);
}
//-----------------------------------------------------------------------------
void pqPythonTextArea::unlink()
{
this->TextLinker = pqTextLinker();
}
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