Fix the tab ordering of GuiDocument components.

[lyx.git] / src / frontends / qt4 / GuiViewSource.cpp

diff --git a/src/frontends/qt4/GuiViewSource.cpp b/src/frontends/qt4/GuiViewSource.cpp
index 8b4f93f34df23c1eecb29ff27eaf7eb5526d8328..345bfedd44968b3644fa46b477b8304d49db6cc5 100644 (file)
--- a/src/frontends/qt4/GuiViewSource.cpp
+++ b/src/frontends/qt4/GuiViewSource.cpp
@@ -17,17 +17,21 @@
 #include "LaTeXHighlighter.h"
 #include "qt_helpers.h"
 
-#include "BufferView.h"
 #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/debug.h"
 #include "support/lassert.h"
 #include "support/docstream.h"
 #include "support/gettext.h"
 
+#include <boost/crc.hpp>
+
 #include <QSettings>
 #include <QTextCursor>
 #include <QTextDocument>
@@ -40,16 +44,21 @@ namespace frontend {
 
 ViewSourceWidget::ViewSourceWidget()
        :       bv_(0), document_(new QTextDocument(this)),
-               highlighter_(new LaTeXHighlighter(document_))
+               highlighter_(new LaTeXHighlighter(document_)),
+               force_getcontent_(true)
 {
        setupUi(this);
 
        connect(viewFullSourceCB, SIGNAL(clicked()),
-               this, SLOT(updateView()));
+               this, SLOT(fullSourceChanged()));
        connect(autoUpdateCB, SIGNAL(toggled(bool)),
                updatePB, SLOT(setDisabled(bool)));
+       connect(autoUpdateCB, SIGNAL(toggled(bool)),
+               this, SLOT(updateView()));
        connect(updatePB, SIGNAL(clicked()),
                this, SLOT(updateView()));
+       connect(outputFormatCO, SIGNAL(activated(int)),
+               this, SLOT(updateView()));
 
        // setting a document at this point trigger an assertion in Qt
        // so we disable the signals here:
@@ -69,10 +78,20 @@ ViewSourceWidget::ViewSourceWidget()
 }
 
 
+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 QString getContent(BufferView const * view, bool fullSource)
+static bool getContent(BufferView const * view, bool fullSource,
+                      QString & qstr, string const format, bool force_getcontent)
 {
        // get the *top* level paragraphs that contain the cursor,
        // or the selected text
@@ -89,14 +108,31 @@ static QString getContent(BufferView const * view, bool fullSource)
        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());
+       view->buffer().getSourceCode(ostr, format, par_begin, par_end + 1, fullSource);
+       docstring s = ostr.str();
+       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::fullSourceChanged()
+{
+       if (autoUpdateCB->isChecked())
+               updateView();
 }
 
 
@@ -108,7 +144,15 @@ void ViewSourceWidget::updateView()
                return;
        }
 
-       document_->setPlainText(getContent(bv_, viewFullSourceCB->isChecked()));
+       setEnabled(true);
+
+       string const format = fromqstr(outputFormatCO->itemData(
+               outputFormatCO->currentIndex()).toString());
+
+       QString content;
+       if (getContent(bv_, viewFullSourceCB->isChecked(), content,
+                 format, force_getcontent_))
+               document_->setPlainText(content);
 
        CursorSlice beg = bv_->cursor().selectionBegin().bottom();
        CursorSlice end = bv_->cursor().selectionEnd().bottom();
@@ -130,6 +174,26 @@ void ViewSourceWidget::updateView()
 }
 
 
+void ViewSourceWidget::updateDefaultFormat()
+{
+       if (!bv_)
+               return;
+
+       outputFormatCO->blockSignals(true);
+       outputFormatCO->clear();
+       outputFormatCO->addItem(qt_("Default"),
+                               QVariant(QString("default")));
+       typedef vector<Format const *> Formats;
+       Formats formats = bv_->buffer().params().exportableFormats(true);
+       Formats::const_iterator cit = formats.begin();
+       Formats::const_iterator end = formats.end();
+       for (; cit != end; ++cit)
+               outputFormatCO->addItem(qt_((*cit)->prettyname()),
+                               QVariant(toqstr((*cit)->name())));
+       outputFormatCO->blockSignals(false);
+}
+
+
 GuiViewSource::GuiViewSource(GuiView & parent,
                Qt::DockWidgetArea area, Qt::WindowFlags flags)
        : DockView(parent, "view-source", qt_("LaTeX Source"), area, flags)
@@ -156,12 +220,11 @@ void GuiViewSource::updateView()
 
 void GuiViewSource::enableView(bool enable)
 {
-       if (!enable) {
+       widget_->setBufferView(bufferview());
+       widget_->updateDefaultFormat();
+       if (!enable)
                // In the opposite case, updateView() will be called anyway.
-               widget_->setBufferView(bufferview());
                widget_->updateView();
-       }
-       widget_->setEnabled(enable);
 }
 
 
@@ -201,11 +264,14 @@ void GuiViewSource::saveSession() const
 void GuiViewSource::restoreSession()
 {
        DockView::restoreSession();
+       // FIXME: Full source updating is too slow to be done at startup.
+       //widget_->viewFullSourceCB->setChecked(
+       //      settings.value(sessionKey() + "/fullsource", false).toBool());
+       widget_->viewFullSourceCB->setChecked(false);
        QSettings settings;
-       widget_->viewFullSourceCB->setChecked(
-               settings.value(sessionKey() + "/fullsource", false).toBool());
        widget_->autoUpdateCB->setChecked(
                settings.value(sessionKey() + "/autoupdate", true).toBool());
+       widget_->updateView();
 }
 
 
@@ -218,4 +284,4 @@ Dialog * createGuiViewSource(GuiView & lv)
 } // namespace frontend
 } // namespace lyx
 
-#include "GuiViewSource_moc.cpp"
+#include "moc_GuiViewSource.cpp"