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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "textdocumentmanipulator.h"
#include <texteditor/texteditor.h>
#include <texteditor/textdocument.h>
namespace TextEditor {
TextDocumentManipulator::TextDocumentManipulator(TextEditorWidget *textEditorWidget)
: m_textEditorWidget(textEditorWidget)
{
}
int TextDocumentManipulator::currentPosition() const
{
return m_textEditorWidget->position();
}
int TextDocumentManipulator::positionAt(TextPositionOperation textPositionOperation) const
{
return m_textEditorWidget->position(textPositionOperation);
}
QChar TextDocumentManipulator::characterAt(int position) const
{
return m_textEditorWidget->characterAt(position);
}
QString TextDocumentManipulator::textAt(int position, int length) const
{
return m_textEditorWidget->textAt(position, length);
}
QTextCursor TextDocumentManipulator::textCursorAt(int position) const
{
auto cursor = m_textEditorWidget->textCursor();
cursor.setPosition(position);
return cursor;
}
void TextDocumentManipulator::setCursorPosition(int position)
{
m_textEditorWidget->setCursorPosition(position);
}
void TextDocumentManipulator::setAutoCompleteSkipPosition(int position)
{
QTextCursor cursor = m_textEditorWidget->textCursor();
cursor.setPosition(position);
m_textEditorWidget->setAutoCompleteSkipPosition(cursor);
}
bool TextDocumentManipulator::replace(int position, int length, const QString &text)
{
bool textWillBeReplaced = textIsDifferentAt(position, length, text);
if (textWillBeReplaced)
replaceWithoutCheck(position, length, text);
return textWillBeReplaced;
}
void TextDocumentManipulator::insertCodeSnippet(int position,
const QString &text,
const SnippetParser &parse)
{
auto cursor = m_textEditorWidget->textCursor();
cursor.setPosition(position, QTextCursor::KeepAnchor);
m_textEditorWidget->insertCodeSnippet(cursor, text, parse);
}
void TextDocumentManipulator::paste()
{
m_textEditorWidget->paste();
}
void TextDocumentManipulator::encourageApply()
{
m_textEditorWidget->encourageApply();
}
namespace {
bool hasOnlyBlanksBeforeCursorInLine(QTextCursor textCursor)
{
textCursor.movePosition(QTextCursor::StartOfLine, QTextCursor::KeepAnchor);
const auto textBeforeCursor = textCursor.selectedText();
const auto nonSpace = std::find_if(textBeforeCursor.cbegin(),
textBeforeCursor.cend(),
[] (const QChar &signBeforeCursor) {
return !signBeforeCursor.isSpace();
});
return nonSpace == textBeforeCursor.cend();
}
}
void TextDocumentManipulator::autoIndent(int position, int length)
{
auto cursor = m_textEditorWidget->textCursor();
cursor.setPosition(position);
if (hasOnlyBlanksBeforeCursorInLine(cursor)) {
cursor.setPosition(position + length, QTextCursor::KeepAnchor);
m_textEditorWidget->textDocument()->autoIndent(cursor);
}
}
bool TextDocumentManipulator::textIsDifferentAt(int position, int length, const QString &text) const
{
const auto textToBeReplaced = m_textEditorWidget->textAt(position, length);
return text != textToBeReplaced;
}
void TextDocumentManipulator::replaceWithoutCheck(int position, int length, const QString &text)
{
auto cursor = m_textEditorWidget->textCursor();
cursor.setPosition(position);
cursor.setPosition(position + length, QTextCursor::KeepAnchor);
cursor.insertText(text);
}
} // namespace TextEditor
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