mirror of
https://git.lyx.org/repos/lyx.git
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323 lines
7.8 KiB
C++
323 lines
7.8 KiB
C++
/**
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* \file GuiViewSource.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author John Levon
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* \author Bo Peng
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* \author Abdelrazak Younes
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "GuiApplication.h"
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#include "GuiViewSource.h"
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#include "LaTeXHighlighter.h"
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#include "qt_helpers.h"
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#include "Buffer.h"
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#include "BufferParams.h"
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#include "BufferView.h"
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#include "Cursor.h"
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#include "Format.h"
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#include "Paragraph.h"
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#include "TexRow.h"
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#include "support/debug.h"
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#include "support/lassert.h"
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#include "support/docstream.h"
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#include "support/gettext.h"
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#include <boost/crc.hpp>
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#include <QSettings>
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#include <QTextCursor>
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#include <QTextDocument>
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#include <QVariant>
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using namespace std;
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namespace lyx {
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namespace frontend {
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ViewSourceWidget::ViewSourceWidget()
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: bv_(0), document_(new QTextDocument(this)),
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highlighter_(new LaTeXHighlighter(document_)),
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force_getcontent_(true)
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{
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setupUi(this);
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connect(contentsCO, SIGNAL(activated(int)),
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this, SLOT(contentsChanged()));
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connect(autoUpdateCB, SIGNAL(toggled(bool)),
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updatePB, SLOT(setDisabled(bool)));
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connect(autoUpdateCB, SIGNAL(toggled(bool)),
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this, SLOT(updateView()));
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connect(masterPerspectiveCB, SIGNAL(toggled(bool)),
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this, SLOT(updateView()));
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connect(updatePB, SIGNAL(clicked()),
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this, SLOT(updateView()));
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connect(outputFormatCO, SIGNAL(activated(int)),
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this, SLOT(setViewFormat()));
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// setting a document at this point trigger an assertion in Qt
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// so we disable the signals here:
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document_->blockSignals(true);
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viewSourceTV->setDocument(document_);
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document_->blockSignals(false);
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viewSourceTV->setReadOnly(true);
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///dialog_->viewSourceTV->setAcceptRichText(false);
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// this is personal. I think source code should be in fixed-size font
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QFont font(guiApp->typewriterFontName());
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font.setKerning(false);
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font.setFixedPitch(true);
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font.setStyleHint(QFont::TypeWriter);
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viewSourceTV->setFont(font);
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// again, personal taste
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viewSourceTV->setWordWrapMode(QTextOption::NoWrap);
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}
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static size_t crcCheck(docstring const & s)
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{
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boost::crc_32_type crc;
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crc.process_bytes(&s[0], sizeof(char_type) * s.size());
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return crc.checksum();
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}
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/** get the source code of selected paragraphs, or the whole document
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\param fullSource get full source code
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\return true if the content has changed since last call.
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*/
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static bool getContent(BufferView const * view, Buffer::OutputWhat output,
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QString & qstr, string const format, bool force_getcontent,
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bool master)
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{
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// get the *top* level paragraphs that contain the cursor,
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// or the selected text
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pit_type par_begin;
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pit_type par_end;
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if (!view->cursor().selection()) {
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par_begin = view->cursor().bottom().pit();
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par_end = par_begin;
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} else {
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par_begin = view->cursor().selectionBegin().bottom().pit();
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par_end = view->cursor().selectionEnd().bottom().pit();
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}
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if (par_begin > par_end)
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swap(par_begin, par_end);
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odocstringstream ostr;
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view->buffer().getSourceCode(ostr, format, par_begin, par_end + 1,
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output, master);
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docstring s = ostr.str();
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static size_t crc = 0;
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size_t newcrc = crcCheck(s);
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if (newcrc == crc && !force_getcontent)
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return false;
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crc = newcrc;
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qstr = toqstr(s);
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return true;
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}
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void ViewSourceWidget::setBufferView(BufferView const * bv)
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{
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if (bv_ != bv)
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force_getcontent_ = true;
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bv_ = bv;
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setEnabled(bv ? true : false);
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}
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void ViewSourceWidget::contentsChanged()
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{
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if (autoUpdateCB->isChecked())
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updateView();
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}
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void ViewSourceWidget::setViewFormat()
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{
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view_format_ = outputFormatCO->itemData(
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outputFormatCO->currentIndex()).toString();
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updateView();
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}
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void ViewSourceWidget::updateView()
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{
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if (!bv_) {
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document_->setPlainText(QString());
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setEnabled(false);
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return;
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}
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setEnabled(true);
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string const format = fromqstr(view_format_);
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QString content;
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Buffer::OutputWhat output = Buffer::CurrentParagraph;
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if (contentsCO->currentIndex() == 1)
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output = Buffer::FullSource;
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else if (contentsCO->currentIndex() == 2)
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output = Buffer::OnlyPreamble;
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else if (contentsCO->currentIndex() == 3)
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output = Buffer::OnlyBody;
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if (getContent(bv_, output, content, format,
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force_getcontent_, masterPerspectiveCB->isChecked()))
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document_->setPlainText(content);
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CursorSlice beg = bv_->cursor().selectionBegin().bottom();
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CursorSlice end = bv_->cursor().selectionEnd().bottom();
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int const begrow = bv_->buffer().texrow().
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getRowFromIdPos(beg.paragraph().id(), beg.pos());
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int endrow = bv_->buffer().texrow().
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getRowFromIdPos(end.paragraph().id(), end.pos());
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int const nextendrow = bv_->buffer().texrow().
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getRowFromIdPos(end.paragraph().id(), end.pos() + 1);
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if (endrow != nextendrow)
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endrow = nextendrow - 1;
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QTextCursor c = QTextCursor(viewSourceTV->document());
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c.movePosition(QTextCursor::NextBlock, QTextCursor::MoveAnchor, begrow);
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c.select(QTextCursor::BlockUnderCursor);
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c.movePosition(QTextCursor::NextBlock, QTextCursor::KeepAnchor,
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endrow - begrow + 1);
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viewSourceTV->setTextCursor(c);
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}
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void ViewSourceWidget::updateDefaultFormat()
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{
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if (!bv_)
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return;
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outputFormatCO->blockSignals(true);
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outputFormatCO->clear();
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outputFormatCO->addItem(qt_("Default"),
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QVariant(QString("default")));
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int index = 0;
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vector<string> tmp = bv_->buffer().params().backends();
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vector<string>::const_iterator it = tmp.begin();
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vector<string>::const_iterator en = tmp.end();
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for (; it != en; ++it) {
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string const format = *it;
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Format const * fmt = formats.getFormat(format);
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if (!fmt) {
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LYXERR0("Can't find format for backend " << format << "!");
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continue;
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}
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QString const pretty = qt_(fmt->prettyname());
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QString const qformat = toqstr(format);
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outputFormatCO->addItem(pretty, QVariant(qformat));
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if (qformat == view_format_)
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index = outputFormatCO->count() -1;
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}
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outputFormatCO->setCurrentIndex(index);
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outputFormatCO->blockSignals(false);
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}
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GuiViewSource::GuiViewSource(GuiView & parent,
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Qt::DockWidgetArea area, Qt::WindowFlags flags)
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: DockView(parent, "view-source", qt_("LaTeX Source"), area, flags)
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{
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widget_ = new ViewSourceWidget;
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setWidget(widget_);
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}
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GuiViewSource::~GuiViewSource()
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{
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delete widget_;
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}
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void GuiViewSource::updateView()
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{
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if (widget_->autoUpdateCB->isChecked()) {
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widget_->setBufferView(bufferview());
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widget_->updateView();
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}
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widget_->masterPerspectiveCB->setEnabled(buffer().parent());
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}
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void GuiViewSource::enableView(bool enable)
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{
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widget_->setBufferView(bufferview());
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widget_->updateDefaultFormat();
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if (!enable)
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// In the opposite case, updateView() will be called anyway.
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widget_->updateView();
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}
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bool GuiViewSource::initialiseParams(string const & /*source*/)
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{
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setWindowTitle(title());
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return true;
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}
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QString GuiViewSource::title() const
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{
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switch (docType()) {
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case LATEX:
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return qt_("LaTeX Source");
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case DOCBOOK:
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return qt_("DocBook Source");
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case LITERATE:
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return qt_("Literate Source");
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}
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LASSERT(false, /**/);
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return QString();
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}
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void GuiViewSource::saveSession() const
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{
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Dialog::saveSession();
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QSettings settings;
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// see below
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// settings.setValue(
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// sessionKey() + "/output", widget_->contentsCO->currentIndex());
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settings.setValue(
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sessionKey() + "/autoupdate", widget_->autoUpdateCB->isChecked());
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}
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void GuiViewSource::restoreSession()
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{
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DockView::restoreSession();
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// FIXME: Full source updating is too slow to be done at startup.
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//widget_->outputCO-setCurrentIndex(
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// settings.value(sessionKey() + "/output", false).toInt());
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widget_->contentsCO->setCurrentIndex(0);
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QSettings settings;
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widget_->autoUpdateCB->setChecked(
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settings.value(sessionKey() + "/autoupdate", true).toBool());
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widget_->updateView();
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}
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Dialog * createGuiViewSource(GuiView & lv)
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{
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return new GuiViewSource(lv);
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}
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} // namespace frontend
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} // namespace lyx
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#include "moc_GuiViewSource.cpp"
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