]> git.lyx.org Git - lyx.git/blobdiff - src/frontends/qt4/GuiViewSource.cpp
On Linux show in crash message box the backtrace
[lyx.git] / src / frontends / qt4 / GuiViewSource.cpp
index dfa1ad0b544576d7ae7432ca0928c0db1590fb39..b2df874437206bde096e139e8559bd5bab06ac1b 100644 (file)
 
 #include <config.h>
 
+#include "GuiApplication.h"
 #include "GuiViewSource.h"
+#include "LaTeXHighlighter.h"
 #include "qt_helpers.h"
 
-#include <boost/tuple/tuple.hpp>
+#include "Buffer.h"
+#include "BufferParams.h"
+#include "BufferView.h"
+#include "Cursor.h"
+#include "Format.h"
+#include "Paragraph.h"
+#include "TexRow.h"
 
+#include "support/debug.h"
+#include "support/lassert.h"
+#include "support/docstream.h"
+#include "support/gettext.h"
+
+#include <boost/crc.hpp>
+
+#include <QBoxLayout>
+#include <QSettings>
 #include <QTextCursor>
 #include <QTextDocument>
+#include <QVariant>
 
+using namespace std;
 
 namespace lyx {
 namespace frontend {
 
-GuiViewSourceDialog::GuiViewSourceDialog(ControlViewSource & controller)
-       :       controller_(controller), document_(new QTextDocument(this)),
-               highlighter_(new LaTeXHighlighter(document_))
+ViewSourceWidget::ViewSourceWidget()
+       :       bv_(0), document_(new QTextDocument(this)),
+               highlighter_(new LaTeXHighlighter(document_)),
+               force_getcontent_(true)
 {
        setupUi(this);
-       setWindowTitle();
 
-       connect(viewFullSourceCB, SIGNAL(clicked()),
-               this, SLOT(update()));
+       connect(contentsCO, SIGNAL(activated(int)),
+               this, SLOT(contentsChanged()));
        connect(autoUpdateCB, SIGNAL(toggled(bool)),
                updatePB, SLOT(setDisabled(bool)));
+       connect(autoUpdateCB, SIGNAL(toggled(bool)),
+               this, SLOT(updateView()));
+       connect(masterPerspectiveCB, SIGNAL(toggled(bool)),
+               this, SLOT(updateView()));
        connect(updatePB, SIGNAL(clicked()),
-               this, SLOT(update()));
+               this, SLOT(updateView()));
+       connect(outputFormatCO, SIGNAL(activated(int)),
+               this, SLOT(setViewFormat()));
 
        // 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);
+       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(toqstr(theApp()->typewriterFontName()));
+       QFont font(guiApp->typewriterFontName());
        font.setKerning(false);
        font.setFixedPitch(true);
        font.setStyleHint(QFont::TypeWriter);
@@ -56,115 +81,259 @@ GuiViewSourceDialog::GuiViewSourceDialog(ControlViewSource & controller)
 }
 
 
-void GuiViewSourceDialog::updateView()
+static size_t crcCheck(docstring const & s)
+{
+       boost::crc_32_type crc;
+       crc.process_bytes(&s[0], sizeof(char_type) * s.size());
+       return crc.checksum();
+}
+
+
+/** get the source code of selected paragraphs, or the whole document
+       \param fullSource get full source code
+       \return true if the content has changed since last call.
+ */
+static bool getContent(BufferView const * view, Buffer::OutputWhat output,
+                      QString & qstr, string const format, bool force_getcontent,
+                      bool master)
+{
+       // get the *top* level paragraphs that contain the cursor,
+       // or the selected text
+       pit_type par_begin;
+       pit_type par_end;
+
+       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, format, par_begin, par_end + 1,
+                                    output, master);
+       docstring s = ostr.str();
+       // FIXME THREAD
+       // Could this be private to this particular dialog? We could have
+       // more than one of these, in different windows.
+       static size_t crc = 0;
+       size_t newcrc = crcCheck(s);
+       if (newcrc == crc && !force_getcontent)
+               return false;
+       crc = newcrc;
+       qstr = toqstr(s);
+       return true;
+}
+
+
+void ViewSourceWidget::setBufferView(BufferView const * bv)
+{
+       if (bv_ != bv)
+               force_getcontent_ = true;
+       bv_ = bv;
+       setEnabled(bv ?  true : false);
+}
+
+
+void ViewSourceWidget::contentsChanged()
 {
        if (autoUpdateCB->isChecked())
-               update(viewFullSourceCB->isChecked());
+               updateView();
+}
+
+
+void ViewSourceWidget::setViewFormat()
+{
+       view_format_ = outputFormatCO->itemData(
+             outputFormatCO->currentIndex()).toString();
+       updateView();
+}
+
+
+void ViewSourceWidget::updateView()
+{
+       if (!bv_) {
+               document_->setPlainText(QString());
+               setEnabled(false);
+               return;
+       }
+
+       setEnabled(true);
+
+       string const format = fromqstr(view_format_);
+
+       QString content;
+       Buffer::OutputWhat output = Buffer::CurrentParagraph;
+       if (contentsCO->currentIndex() == 1)
+               output = Buffer::FullSource;
+       else if (contentsCO->currentIndex() == 2)
+               output = Buffer::OnlyPreamble;
+       else if (contentsCO->currentIndex() == 3)
+               output = Buffer::OnlyBody;
+
+       if (getContent(bv_, output, content, format,
+                     force_getcontent_, masterPerspectiveCB->isChecked()))
+               document_->setPlainText(content);
+
+       CursorSlice beg = bv_->cursor().selectionBegin().bottom();
+       CursorSlice end = bv_->cursor().selectionEnd().bottom();
+       int const begrow = bv_->buffer().texrow().
+               getRowFromIdPos(beg.paragraph().id(), beg.pos());
+       int endrow = bv_->buffer().texrow().
+               getRowFromIdPos(end.paragraph().id(), end.pos());
+       int const nextendrow = bv_->buffer().texrow().
+               getRowFromIdPos(end.paragraph().id(), end.pos() + 1);
+       if (endrow != nextendrow)
+               endrow = nextendrow - 1;
 
-       int beg, end;
-       boost::tie(beg, end) = controller_.getRows();
        QTextCursor c = QTextCursor(viewSourceTV->document());
-       c.movePosition(QTextCursor::NextBlock, QTextCursor::MoveAnchor, beg);
+       c.movePosition(QTextCursor::NextBlock, QTextCursor::MoveAnchor, begrow);
        c.select(QTextCursor::BlockUnderCursor);
-       c.movePosition(QTextCursor::NextBlock, QTextCursor::KeepAnchor, end - beg + 1);
+       c.movePosition(QTextCursor::NextBlock, QTextCursor::KeepAnchor,
+               endrow - begrow + 1);
        viewSourceTV->setTextCursor(c);
-       QWidget::update();
 }
 
 
-void GuiViewSourceDialog::update(bool full_source)
+void ViewSourceWidget::updateDefaultFormat()
 {
-       document_->setPlainText(toqstr(controller_.updateContent(full_source)));
+       if (!bv_)
+               return;
+
+       outputFormatCO->blockSignals(true);
+       outputFormatCO->clear();
+       outputFormatCO->addItem(qt_("Default"),
+                               QVariant(QString("default")));
+
+       int index = 0;
+       vector<string> tmp = bv_->buffer().params().backends();
+       vector<string>::const_iterator it = tmp.begin();
+       vector<string>::const_iterator en = tmp.end();
+       for (; it != en; ++it) {
+               string const format = *it;
+               Format const * fmt = formats.getFormat(format);
+               if (!fmt) {
+                       LYXERR0("Can't find format for backend " << format << "!");
+                       continue;
+               } 
+
+               QString const pretty = qt_(fmt->prettyname());
+               QString const qformat = toqstr(format);
+               outputFormatCO->addItem(pretty, QVariant(qformat));
+               if (qformat == view_format_)
+                  index = outputFormatCO->count() -1;
+       }
+       outputFormatCO->setCurrentIndex(index);
+
+       outputFormatCO->blockSignals(false);
 }
 
 
+void ViewSourceWidget::resizeEvent (QResizeEvent * event)
+{
+       QSize const & formSize = formLayout->sizeHint();
+       // minimize the size of the part that contains the buttons
+       if (width() * formSize.height() < height() * formSize.width()) {
+               layout_->setDirection(QBoxLayout::TopToBottom);
+       } else {
+               layout_->setDirection(QBoxLayout::LeftToRight);
+       }
+       QWidget::resizeEvent(event);
+}
 
-/////////////////////////////////////////////////////////////////////
-//
-// LaTeXHighlighter
-//
-/////////////////////////////////////////////////////////////////////
 
+GuiViewSource::GuiViewSource(GuiView & parent,
+               Qt::DockWidgetArea area, Qt::WindowFlags flags)
+       : DockView(parent, "view-source", qt_("LaTeX Source"), area, flags)
+{
+       widget_ = new ViewSourceWidget;
+       setWidget(widget_);
+}
 
-LaTeXHighlighter::LaTeXHighlighter(QTextDocument * parent)
-       : QSyntaxHighlighter(parent)
+
+GuiViewSource::~GuiViewSource()
 {
-       keywordFormat.setForeground(Qt::darkBlue);
-       keywordFormat.setFontWeight(QFont::Bold);
-       commentFormat.setForeground(Qt::darkGray);
-       mathFormat.setForeground(Qt::red);
+       delete widget_;
 }
 
 
-void LaTeXHighlighter::highlightBlock(QString const & text)
+void GuiViewSource::updateView()
 {
-       // $ $
-       QRegExp exprMath("\\$[^\\$]*\\$");
-       int index = text.indexOf(exprMath);
-       while (index >= 0) {
-               int length = exprMath.matchedLength();
-               setFormat(index, length, mathFormat);
-               index = text.indexOf(exprMath, index + length);
-       }
-       // [ ]
-       QRegExp exprStartDispMath("(\\\\\\[|"
-               "\\\\begin\\{equation\\**\\}|"
-               "\\\\begin\\{eqnarray\\**\\}|"
-               "\\\\begin\\{align(ed|at)*\\**\\}|"
-               "\\\\begin\\{flalign\\**\\}|"
-               "\\\\begin\\{gather\\**\\}|"
-               "\\\\begin\\{multline\\**\\}|"
-               "\\\\begin\\{array\\**\\}|"
-               "\\\\begin\\{cases\\**\\}"
-               ")");
-       QRegExp exprEndDispMath("(\\\\\\]|"
-               "\\\\end\\{equation\\**\\}|"
-               "\\\\end\\{eqnarray\\**\\}|"
-               "\\\\end\\{align(ed|at)*\\**\\}|"
-               "\\\\end\\{flalign\\**\\}|"
-               "\\\\end\\{gather\\**\\}|"
-               "\\\\end\\{multline\\**\\}|"
-               "\\\\end\\{array\\**\\}|"
-               "\\\\end\\{cases\\**\\}"
-               ")");
-       int startIndex = 0;
-       // if previous block was in 'disp math'
-       // start search from 0 (for end disp math)
-       // otherwise, start search from 'begin disp math'
-       if (previousBlockState() != 1)
-               startIndex = text.indexOf(exprStartDispMath);
-       while (startIndex >= 0) {
-               int endIndex = text.indexOf(exprEndDispMath, startIndex);
-               int length;
-               if (endIndex == -1) {
-                       setCurrentBlockState(1);
-                       length = text.length() - startIndex;
-               } else {
-                       length = endIndex - startIndex + exprEndDispMath.matchedLength();
-               }
-               setFormat(startIndex, length, mathFormat);
-               startIndex = text.indexOf(exprStartDispMath, startIndex + length);
+       if (widget_->autoUpdateCB->isChecked()) {
+               widget_->setBufferView(bufferview());
+               widget_->updateView();
        }
-       // \whatever
-       QRegExp exprKeyword("\\\\[A-Za-z]+");
-       index = text.indexOf(exprKeyword);
-       while (index >= 0) {
-               int length = exprKeyword.matchedLength();
-               setFormat(index, length, keywordFormat);
-               index = text.indexOf(exprKeyword, index + length);
-       }
-       // comment
-       QRegExp exprComment("(^|[^\\\\])%.*$");
-       index = text.indexOf(exprComment);
-       while (index >= 0) {
-               int const length = exprComment.matchedLength();
-               setFormat(index, length, commentFormat);
-               index = text.indexOf(exprComment, index + length);
+       widget_->masterPerspectiveCB->setEnabled(buffer().parent());
+}
+
+
+void GuiViewSource::enableView(bool enable)
+{
+       widget_->setBufferView(bufferview());
+       widget_->updateDefaultFormat();
+       if (!enable)
+               // In the opposite case, updateView() will be called anyway.
+               widget_->updateView();
+}
+
+
+bool GuiViewSource::initialiseParams(string const & /*source*/)
+{
+       setWindowTitle(title());
+       return true;
+}
+
+
+QString GuiViewSource::title() const
+{
+       switch (docType()) {
+               case LATEX:
+                       return qt_("LaTeX Source");
+               case DOCBOOK:
+                       return qt_("DocBook Source");
+               case LITERATE:
+                       return qt_("Literate Source");
        }
+       LATTEST(false);
+       return QString();
+}
+
+
+void GuiViewSource::saveSession() const
+{
+       Dialog::saveSession();
+       QSettings settings;
+       // see below
+       // settings.setValue(
+       //      sessionKey() + "/output", widget_->contentsCO->currentIndex());
+       settings.setValue(
+               sessionKey() + "/autoupdate", widget_->autoUpdateCB->isChecked());
+}
+
+
+void GuiViewSource::restoreSession()
+{
+       DockView::restoreSession();
+       // FIXME: Full source updating is too slow to be done at startup.
+       //widget_->outputCO-setCurrentIndex(
+       //      settings.value(sessionKey() + "/output", false).toInt());
+       widget_->contentsCO->setCurrentIndex(0);
+       QSettings settings;
+       widget_->autoUpdateCB->setChecked(
+               settings.value(sessionKey() + "/autoupdate", true).toBool());
+       widget_->updateView();
+}
+
+
+Dialog * createGuiViewSource(GuiView & lv)
+{
+       return new GuiViewSource(lv);
 }
 
 
 } // namespace frontend
 } // namespace lyx
 
-#include "GuiViewSource_moc.cpp"
+#include "moc_GuiViewSource.cpp"