lyx_mirror/src/frontends/qt4/GuiViewSource.cpp
André Pönitz 7f461f4392 infrastructure for 'graceful asserts'
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@24216 a592a061-630c-0410-9148-cb99ea01b6c8
2008-04-10 21:49:34 +00:00

185 lines
4.3 KiB
C++

/**
* \file GuiViewSource.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author John Levon
* \author Bo Peng
* \author Abdelrazak Younes
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "GuiApplication.h"
#include "GuiViewSource.h"
#include "LaTeXHighlighter.h"
#include "qt_helpers.h"
#include "BufferView.h"
#include "Buffer.h"
#include "Cursor.h"
#include "Paragraph.h"
#include "TexRow.h"
#include "support/assert.h"
#include "support/docstream.h"
#include "support/gettext.h"
#include <QTextCursor>
#include <QTextDocument>
using namespace std;
namespace lyx {
namespace frontend {
ViewSourceWidget::ViewSourceWidget(GuiViewSource & controller)
: controller_(controller), document_(new QTextDocument(this)),
highlighter_(new LaTeXHighlighter(document_))
{
setupUi(this);
connect(viewFullSourceCB, SIGNAL(clicked()),
this, SLOT(updateView()));
connect(autoUpdateCB, SIGNAL(toggled(bool)),
updatePB, SLOT(setDisabled(bool)));
connect(updatePB, SIGNAL(clicked()),
this, SLOT(updateView()));
// setting a document at this point trigger an assertion in Qt
// so we disable the signals here:
document_->blockSignals(true);
viewSourceTV->setDocument(document_);
document_->blockSignals(false);
viewSourceTV->setReadOnly(true);
///dialog_->viewSourceTV->setAcceptRichText(false);
// this is personal. I think source code should be in fixed-size font
QFont font(guiApp->typewriterFontName());
font.setKerning(false);
font.setFixedPitch(true);
font.setStyleHint(QFont::TypeWriter);
viewSourceTV->setFont(font);
// again, personal taste
viewSourceTV->setWordWrapMode(QTextOption::NoWrap);
}
void ViewSourceWidget::updateView()
{
if (autoUpdateCB->isChecked())
update(viewFullSourceCB->isChecked());
GuiViewSource::Row row = controller_.getRows();
QTextCursor c = QTextCursor(viewSourceTV->document());
c.movePosition(QTextCursor::NextBlock, QTextCursor::MoveAnchor, row.begin);
c.select(QTextCursor::BlockUnderCursor);
c.movePosition(QTextCursor::NextBlock, QTextCursor::KeepAnchor,
row.end - row.begin + 1);
viewSourceTV->setTextCursor(c);
}
void ViewSourceWidget::update(bool full_source)
{
document_->setPlainText(controller_.getContent(full_source));
}
GuiViewSource::GuiViewSource(GuiView & parent,
Qt::DockWidgetArea area, Qt::WindowFlags flags)
: DockView(parent, "view-source", qt_("LaTeX Source"), area, flags)
{
widget_ = new ViewSourceWidget(*this);
setWidget(widget_);
}
GuiViewSource::~GuiViewSource()
{
delete widget_;
}
void GuiViewSource::updateView()
{
widget_->updateView();
}
bool GuiViewSource::initialiseParams(string const & /*source*/)
{
setWindowTitle(title());
return true;
}
QString GuiViewSource::getContent(bool fullSource)
{
// get the *top* level paragraphs that contain the cursor,
// or the selected text
pit_type par_begin;
pit_type par_end;
BufferView * view = bufferview();
if (!view->cursor().selection()) {
par_begin = view->cursor().bottom().pit();
par_end = par_begin;
} else {
par_begin = view->cursor().selectionBegin().bottom().pit();
par_end = view->cursor().selectionEnd().bottom().pit();
}
if (par_begin > par_end)
swap(par_begin, par_end);
odocstringstream ostr;
view->buffer().getSourceCode(ostr, par_begin, par_end + 1, fullSource);
return toqstr(ostr.str());
}
GuiViewSource::Row GuiViewSource::getRows() const
{
BufferView const * view = bufferview();
CursorSlice beg = view->cursor().selectionBegin().bottom();
CursorSlice end = view->cursor().selectionEnd().bottom();
int begrow = view->buffer().texrow().
getRowFromIdPos(beg.paragraph().id(), beg.pos());
int endrow = view->buffer().texrow().
getRowFromIdPos(end.paragraph().id(), end.pos());
int nextendrow = view->buffer().texrow().
getRowFromIdPos(end.paragraph().id(), end.pos() + 1);
Row row;
row.begin = begrow;
row.end = endrow == nextendrow ? endrow : (nextendrow - 1);
return row;
}
QString GuiViewSource::title() const
{
switch (docType()) {
case LATEX:
return qt_("LaTeX Source");
case DOCBOOK:
return qt_("DocBook Source");
case LITERATE:
return qt_("Literate Source");
}
LASSERT(false, /**/);
return QString();
}
Dialog * createGuiViewSource(GuiView & lv)
{
return new GuiViewSource(lv);
}
} // namespace frontend
} // namespace lyx
#include "GuiViewSource_moc.cpp"