X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FBufferView_pimpl.C;h=1c52d6e331492a1cd2398a980ab57fe763a184ee;hb=41ecabf5197a74719dd125e974b062184208c96b;hp=27adc9dcfb9699d2e89532111ed2f659499eb5b7;hpb=99aacdad5ce32c5905149d800405ff48ffb3a3d6;p=lyx.git

diff --git a/src/BufferView_pimpl.C b/src/BufferView_pimpl.C
index 27adc9dcfb..1c52d6e331 100644
--- a/src/BufferView_pimpl.C
+++ b/src/BufferView_pimpl.C
@@ -23,15 +23,18 @@
 #include "buffer_funcs.h"
 #include "bufferlist.h"
 #include "bufferparams.h"
+#include "coordcache.h"
 #include "cursor.h"
 #include "debug.h"
 #include "dispatchresult.h"
 #include "factory.h"
 #include "FloatList.h"
 #include "funcrequest.h"
+#include "FuncStatus.h"
 #include "gettext.h"
 #include "intl.h"
-#include "iterators.h"
+#include "insetiterator.h"
+#include "LaTeXFeatures.h"
 #include "lyx_cb.h" // added for Dispatch functions
 #include "lyx_main.h"
 #include "lyxfind.h"
@@ -39,18 +42,23 @@
 #include "lyxtext.h"
 #include "lyxrc.h"
 #include "lastfiles.h"
+#include "metricsinfo.h"
 #include "paragraph.h"
 #include "paragraph_funcs.h"
 #include "ParagraphParameters.h"
+#include "pariterator.h"
+#include "rowpainter.h"
 #include "undo.h"
 #include "vspace.h"
 
-#include "insets/insetfloatlist.h"
+#include "insets/insetbibtex.h"
 #include "insets/insetref.h"
+#include "insets/insettext.h"
 
 #include "frontends/Alert.h"
 #include "frontends/Dialogs.h"
 #include "frontends/FileDialog.h"
+#include "frontends/font_metrics.h"
 #include "frontends/LyXView.h"
 #include "frontends/LyXScreenFactory.h"
 #include "frontends/screen.h"
@@ -59,14 +67,18 @@
 
 #include "graphics/Previews.h"
 
+#include "support/convert.h"
+#include "support/filefilterlist.h"
 #include "support/filetools.h"
-#include "support/globbing.h"
-#include "support/path_defines.h"
-#include "support/tostr.h"
+#include "support/forkedcontr.h"
+#include "support/package.h"
+#include "support/types.h"
 
 #include <boost/bind.hpp>
+#include <boost/current_function.hpp>
 
-using bv_funcs::currentState;
+#include <functional>
+#include <vector>
 
 using lyx::pos_type;
 
@@ -74,15 +86,20 @@ using lyx::support::AddPath;
 using lyx::support::bformat;
 using lyx::support::FileFilterList;
 using lyx::support::FileSearch;
+using lyx::support::ForkedcallsController;
 using lyx::support::IsDirWriteable;
 using lyx::support::MakeDisplayPath;
-using lyx::support::strToUnsignedInt;
-using lyx::support::system_lyxdir;
+using lyx::support::MakeAbsPath;
+using lyx::support::package;
 
 using std::endl;
+using std::istringstream;
 using std::make_pair;
 using std::min;
+using std::max;
 using std::string;
+using std::mem_fun_ref;
+using std::vector;
 
 
 extern BufferList bufferlist;
@@ -106,17 +123,31 @@ boost::signals::connection selectioncon;
 boost::signals::connection lostcon;
 
 
+/// Return an inset of this class if it exists at the current cursor position
+template <class T>
+T * getInsetByCode(LCursor & cur, InsetBase::Code code)
+{
+	T * inset = 0;
+	DocIterator it = cur;
+	if (it.nextInset() &&
+	    it.nextInset()->lyxCode() == code) {
+		inset = static_cast<T*>(it.nextInset());
+	}
+	return inset;
+}
+
 } // anon namespace
 
 
 BufferView::Pimpl::Pimpl(BufferView & bv, LyXView * owner,
-	     int xpos, int ypos, int width, int height)
+			 int width, int height)
 	: bv_(&bv), owner_(owner), buffer_(0), cursor_timeout(400),
-	  using_xterm_cursor(false), cursor_(bv)
+	  using_xterm_cursor(false), cursor_(bv) ,
+	  anchor_ref_(0), offset_ref_(0)
 {
 	xsel_cache_.set = false;
 
-	workarea_.reset(WorkAreaFactory::create(xpos, ypos, width, height));
+	workarea_.reset(WorkAreaFactory::create(*owner_, width, height));
 	screen_.reset(LyXScreenFactory::create(workarea()));
 
 	// Setup the signals
@@ -159,19 +190,32 @@ void BufferView::Pimpl::connectBuffer(Buffer & buf)
 		disconnectBuffer();
 
 	errorConnection_ =
-		buf.error.connect(boost::bind(&BufferView::Pimpl::addError, this, _1));
+		buf.error.connect(
+			boost::bind(&BufferView::Pimpl::addError, this, _1));
+
 	messageConnection_ =
-		buf.message.connect(boost::bind(&LyXView::message, owner_, _1));
+		buf.message.connect(
+			boost::bind(&LyXView::message, owner_, _1));
+
 	busyConnection_ =
-		buf.busy.connect(boost::bind(&LyXView::busy, owner_, _1));
+		buf.busy.connect(
+			boost::bind(&LyXView::busy, owner_, _1));
+
 	titleConnection_ =
-		buf.updateTitles.connect(boost::bind(&LyXView::updateWindowTitle, owner_));
+		buf.updateTitles.connect(
+			boost::bind(&LyXView::updateWindowTitle, owner_));
+
 	timerConnection_ =
-		buf.resetAutosaveTimers.connect(boost::bind(&LyXView::resetAutosaveTimer, owner_));
+		buf.resetAutosaveTimers.connect(
+			boost::bind(&LyXView::resetAutosaveTimer, owner_));
+
 	readonlyConnection_ =
-		buf.readonly.connect(boost::bind(&BufferView::Pimpl::showReadonly, this, _1));
+		buf.readonly.connect(
+			boost::bind(&BufferView::Pimpl::showReadonly, this, _1));
+
 	closingConnection_ =
-		buf.closing.connect(boost::bind(&BufferView::Pimpl::buffer, this, (Buffer *)0));
+		buf.closing.connect(
+			boost::bind(&BufferView::Pimpl::setBuffer, this, (Buffer *)0));
 }
 
 
@@ -187,20 +231,17 @@ void BufferView::Pimpl::disconnectBuffer()
 }
 
 
-bool BufferView::Pimpl::newFile(string const & filename,
-				string const & tname,
-				bool isNamed)
+void BufferView::Pimpl::newFile(string const & filename, string const & tname,
+	bool isNamed)
 {
-	Buffer * b = ::newFile(filename, tname, isNamed);
-	buffer(b);
-	return true;
+	setBuffer(::newFile(filename, tname, isNamed));
 }
 
 
 bool BufferView::Pimpl::loadLyXFile(string const & filename, bool tolastfiles)
 {
-	// get absolute path of file and add ".lyx" to the filename if
-	// necessary
+	// Get absolute path of file and add ".lyx"
+	// to the filename if necessary
 	string s = FileSearch(string(), filename, "lyx");
 
 	bool const found = !s.empty();
@@ -208,7 +249,7 @@ bool BufferView::Pimpl::loadLyXFile(string const & filename, bool tolastfiles)
 	if (!found)
 		s = filename;
 
-	// file already open?
+	// File already open?
 	if (bufferlist.exists(s)) {
 		string const file = MakeDisplayPath(s, 20);
 		string text = bformat(_("The document %1$s is already "
@@ -218,14 +259,13 @@ bool BufferView::Pimpl::loadLyXFile(string const & filename, bool tolastfiles)
 			text, 0, 1,  _("&Revert"), _("&Switch to document"));
 
 		if (ret != 0) {
-			buffer(bufferlist.getBuffer(s));
+			setBuffer(bufferlist.getBuffer(s));
 			return true;
-		} else {
-			// FIXME: should be LFUN_REVERT
-			if (!bufferlist.close(bufferlist.getBuffer(s), false))
-				return false;
-			// Fall through to new load. (Asger)
 		}
+		// FIXME: should be LFUN_REVERT
+		if (!bufferlist.close(bufferlist.getBuffer(s), false))
+			return false;
+		// Fall through to new load. (Asger)
 	}
 
 	Buffer * b;
@@ -250,7 +290,7 @@ bool BufferView::Pimpl::loadLyXFile(string const & filename, bool tolastfiles)
 			return false;
 	}
 
-	buffer(b);
+	setBuffer(b);
 	bv_->showErrorList(_("Parse"));
 
 	if (tolastfiles)
@@ -278,166 +318,86 @@ Painter & BufferView::Pimpl::painter() const
 }
 
 
-void BufferView::Pimpl::top_y(int y)
-{
-	top_y_ = y;
-}
-
-
-int BufferView::Pimpl::top_y() const
+void BufferView::Pimpl::setBuffer(Buffer * b)
 {
-	return top_y_;
-}
+	lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
+			    << "[ b = " << b << "]" << endl;
 
-
-void BufferView::Pimpl::buffer(Buffer * b)
-{
-	lyxerr[Debug::INFO] << "Setting buffer in BufferView ("
-			    << b << ')' << endl;
-	if (buffer_) {
+	if (buffer_)
 		disconnectBuffer();
-		//delete bv_->text();
-		//bv_->setText(0);
-	}
 
-	// reset old cursor
-	cursor_.reset();
+	// If we are closing current buffer, switch to the first in
+	// buffer list.
+	if (!b) {
+		lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
+				    << " No Buffer!" << endl;
+		// We are closing the buffer, use the first buffer as current
+		buffer_ = bufferlist.first();
+		owner_->getDialogs().hideBufferDependent();
+	} else {
+		// Set current buffer
+		buffer_ = b;
+	}
 
-	// set current buffer
-	buffer_ = b;
+	// Reset old cursor
+	cursor_ = LCursor(*bv_);
+	anchor_ref_ = 0;
+	offset_ref_ = 0;
 
-	top_y_ = 0;
 
-	// if we're quitting lyx, don't bother updating stuff
+	// If we're quitting lyx, don't bother updating stuff
 	if (quitting)
 		return;
 
-	// if we are closing the buffer, use the first buffer as current
-	if (!buffer_)
-		buffer_ = bufferlist.first();
-
 	if (buffer_) {
-		lyxerr[Debug::INFO] << "Buffer addr: " << buffer_ << endl;
+		lyxerr[Debug::INFO] << BOOST_CURRENT_FUNCTION
+				    << "Buffer addr: " << buffer_ << endl;
 		connectBuffer(*buffer_);
 
+		cursor_.push(buffer_->inset());
+		cursor_.resetAnchor();
 		buffer_->text().init(bv_);
-		buffer_->text().textwidth_ = workarea().workWidth();
-		buffer_->text().fullRebreak();
-
-		// If we don't have a text object for this, we make one
-		if (bv_->text() == 0)
-			resizeCurrentBuffer();
-
-		// FIXME: needed when ?
-		fitCursor();
+		buffer_->text().setCurrentFont(cursor_);
 
 		// Buffer-dependent dialogs should be updated or
 		// hidden. This should go here because some dialogs (eg ToC)
 		// require bv_->text.
 		owner_->getDialogs().updateBufferDependent(true);
-	} else {
-		lyxerr[Debug::INFO] << "  No Buffer!" << endl;
-		owner_->getDialogs().hideBufferDependent();
 	}
 
 	update();
 	updateScrollbar();
 	owner_->updateMenubar();
-	owner_->updateToolbar();
+	owner_->updateToolbars();
 	owner_->updateLayoutChoice();
 	owner_->updateWindowTitle();
 
-	// Don't forget to update the Layout
+	// This is done after the layout combox has been populated
 	if (buffer_)
-		owner_->setLayout(bv_->text()->cursorPar()->layout()->name());
+		owner_->setLayout(cursor_.paragraph().layout()->name());
 
-	if (lyx::graphics::Previews::activated() && buffer_)
+	if (buffer_ && lyx::graphics::Previews::status() != LyXRC::PREVIEW_OFF)
 		lyx::graphics::Previews::get().generateBufferPreviews(*buffer_);
 }
 
 
-bool BufferView::Pimpl::fitCursor()
-{
-	lyxerr << "BufferView::Pimpl::fitCursor." << endl;
-	if (screen().fitCursor(bv_)) {
-		updateScrollbar();
-		return true;
-	}
-	return false;
-}
-
-
-void BufferView::Pimpl::redoCurrentBuffer()
-{
-	lyxerr[Debug::INFO] << "BufferView::redoCurrentBuffer" << endl;
-	if (buffer_ && bv_->text()) {
-		resizeCurrentBuffer();
-		updateScrollbar();
-		owner_->updateLayoutChoice();
-	}
-}
-
-
 void BufferView::Pimpl::resizeCurrentBuffer()
 {
-	lyxerr[Debug::INFO] << "resizeCurrentBuffer" << endl;
-
-	int par = -1;
-	int selstartpar = -1;
-	int selendpar = -1;
-
-	pos_type pos = 0;
-	pos_type selstartpos = 0;
-	pos_type selendpos = 0;
-	bool sel = false;
-	bool mark_set  = false;
-
+	lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION << endl;
 	owner_->busy(true);
-
 	owner_->message(_("Formatting document..."));
 
 	LyXText * text = bv_->text();
-	lyxerr << "### resizeCurrentBuffer: text " << text << endl;
 	if (!text)
 		return;
 
-	LCursor & cur = bv_->cursor();
-	par = cur.par();
-	pos = cur.pos();
-	selstartpar = cur.selBegin().par();
-	selstartpos = cur.selBegin().pos();
-	selendpar = cur.selEnd().par();
-	selendpos = cur.selEnd().pos();
-	sel = cur.selection();
-	mark_set = cur.mark();
-	text->textwidth_ = bv_->workWidth();
-	text->fullRebreak();
+	text->init(bv_);
 	update();
 
-	if (par != -1) {
-		cur.selection() = true;
-		// At this point just to avoid the Delete-Empty-Paragraph-
-		// Mechanism when setting the cursor.
-		cur.mark() = mark_set;
-		if (sel) {
-			text->setCursor(selstartpar, selstartpos);
-			cur.resetAnchor();
-			text->setCursor(selendpar, selendpos);
-			cur.setSelection();
-			text->setCursor(par, pos);
-		} else {
-			text->setCursor(par, pos);
-			cur.resetAnchor();
-			cur.selection() = false;
-		}
-	}
-
-	fitCursor();
-
 	switchKeyMap();
 	owner_->busy(false);
 
-	// reset the "Formatting..." message
+	// Reset the "Formatting..." message
 	owner_->clearMessage();
 
 	updateScrollbar();
@@ -447,76 +407,112 @@ void BufferView::Pimpl::resizeCurrentBuffer()
 void BufferView::Pimpl::updateScrollbar()
 {
 	if (!bv_->text()) {
-		lyxerr[Debug::GUI] << "no text in updateScrollbar" << endl;
+		lyxerr[Debug::DEBUG] << BOOST_CURRENT_FUNCTION
+				     << " no text in updateScrollbar" << endl;
 		workarea().setScrollbarParams(0, 0, 0);
 		return;
 	}
 
-	LyXText const & t = *bv_->text();
-
-	lyxerr[Debug::GUI] << "Updating scrollbar: h " << t.height << ", top_y() "
-		<< top_y() << ", default height " << defaultRowHeight() << endl;
+	LyXText & t = *bv_->text();
+	if (anchor_ref_ >  int(t.paragraphs().size()) - 1) {
+		anchor_ref_ = int(t.paragraphs().size()) - 1;
+		offset_ref_ = 0;
+	}
 
-	workarea().setScrollbarParams(t.height, top_y(), defaultRowHeight());
+	lyxerr[Debug::GUI]
+		<< BOOST_CURRENT_FUNCTION
+		<< " Updating scrollbar: height: " << t.paragraphs().size()
+		<< " curr par: " << cursor_.bottom().pit()
+		<< " default height " << defaultRowHeight() << endl;
+
+	// It would be better to fix the scrollbar to understand
+	// values in [0..1] and divide everything by wh
+	int const wh = workarea().workHeight() / 4;
+	int const h = t.getPar(anchor_ref_).height();
+	workarea().setScrollbarParams(t.paragraphs().size() * wh, anchor_ref_ * wh + int(offset_ref_ * wh / float(h)), int (wh * defaultRowHeight() / float(h)));
+//	workarea().setScrollbarParams(t.paragraphs().size(), anchor_ref_, 1);
 }
 
 
 void BufferView::Pimpl::scrollDocView(int value)
 {
-	lyxerr[Debug::GUI] << "scrollDocView of " << value << endl;
+	lyxerr[Debug::GUI] << BOOST_CURRENT_FUNCTION
+			   << "[ value = " << value << "]" << endl;
 
 	if (!buffer_)
 		return;
 
 	screen().hideCursor();
 
-	top_y(value);
-	screen().redraw(*bv_);
+	int const wh = workarea().workHeight() / 4;
+
+	LyXText & t = *bv_->text();
+
+	float const bar = value / float(wh * t.paragraphs().size());
+
+	anchor_ref_ = int(bar * t.paragraphs().size());
+	t.redoParagraph(anchor_ref_);
+	int const h = t.getPar(anchor_ref_).height();
+	offset_ref_ = int((bar * t.paragraphs().size() - anchor_ref_) * h);
+	update();
 
 	if (!lyxrc.cursor_follows_scrollbar)
 		return;
 
-	int const height = defaultRowHeight();
-	int const first = top_y() + height;
-	int const last = top_y() + workarea().workHeight() - height;
+	int const height = 2 * defaultRowHeight();
+	int const first = height;
+	int const last = workarea().workHeight() - height;
+	LCursor & cur = cursor_;
 
-	LyXText * text = bv_->text();
-	int y = text->cursorY(bv_->cursor().cursor_.front());
-	if (y < first)
-		text->setCursorFromCoordinates(0, first);
-	else if (y > last)
-		text->setCursorFromCoordinates(0, last);
+	bv_funcs::CurStatus st = bv_funcs::status(bv_, cur);
 
+	switch (st) {
+	case bv_funcs::CUR_ABOVE:
+		t.setCursorFromCoordinates(cur, 0, first);
+		cur.clearSelection();
+		break;
+	case bv_funcs::CUR_BELOW:
+		t.setCursorFromCoordinates(cur, 0, last);
+		cur.clearSelection();
+		break;
+	case bv_funcs::CUR_INSIDE:
+		int const y = bv_funcs::getPos(cur, cur.boundary()).y_;
+		int const newy = min(last, max(y, first));
+		if (y != newy) {
+			cur.reset(buffer_->inset());
+			t.setCursorFromCoordinates(cur, 0, newy);
+		}
+	}
 	owner_->updateLayoutChoice();
 }
 
 
-void BufferView::Pimpl::scroll(int lines)
+void BufferView::Pimpl::scroll(int /*lines*/)
 {
-	if (!buffer_)
-		return;
-
-	LyXText const * t = bv_->text();
-	int const line_height = defaultRowHeight();
-
-	// The new absolute coordinate
-	int new_top_y = top_y() + lines * line_height;
-
-	// Restrict to a valid value
-	new_top_y = std::min(t->height - 4 * line_height, new_top_y);
-	new_top_y = std::max(0, new_top_y);
-
-	scrollDocView(new_top_y);
-
-	// Update the scrollbar.
-	workarea().setScrollbarParams(t->height, top_y(), defaultRowHeight());
+//	if (!buffer_)
+//		return;
+//
+//	LyXText const * t = bv_->text();
+//	int const line_height = defaultRowHeight();
+//
+//	// The new absolute coordinate
+//	int new_top_y = top_y() + lines * line_height;
+//
+//	// Restrict to a valid value
+//	new_top_y = std::min(t->height() - 4 * line_height, new_top_y);
+//	new_top_y = std::max(0, new_top_y);
+//
+//	scrollDocView(new_top_y);
+//
+//	// Update the scrollbar.
+//	workarea().setScrollbarParams(t->height(), top_y(), defaultRowHeight());
 }
 
 
 void BufferView::Pimpl::workAreaKeyPress(LyXKeySymPtr key,
 					 key_modifier::state state)
 {
-	bv_->owner()->getLyXFunc().processKeySym(key, state);
+	owner_->getLyXFunc().processKeySym(key, state);
 
 	/* This is perhaps a bit of a hack. When we move
 	 * around, or type, it's nice to be able to see
@@ -525,10 +521,8 @@ void BufferView::Pimpl::workAreaKeyPress(LyXKeySymPtr key,
 	 * of the cursor. Note we cannot do this inside
 	 * dispatch() itself, because that's called recursively.
 	 */
-	if (available()) {
-		cursor_timeout.restart();
+	if (available())
 		screen().showCursor(*bv_);
-	}
 }
 
 
@@ -539,7 +533,7 @@ void BufferView::Pimpl::selectionRequested()
 	if (!available())
 		return;
 
-	LCursor & cur = bv_->cursor();
+	LCursor & cur = cursor_;
 
 	if (!cur.selection()) {
 		xsel_cache_.set = false;
@@ -547,16 +541,16 @@ void BufferView::Pimpl::selectionRequested()
 	}
 
 	if (!xsel_cache_.set ||
-	    cur.cursor_.back() != xsel_cache_.cursor ||
-	    cur.anchor_.back() != xsel_cache_.anchor)
+	    cur.top() != xsel_cache_.cursor ||
+	    cur.anchor_.top() != xsel_cache_.anchor)
 	{
-		xsel_cache_.cursor = cur.cursor_.back();
-		xsel_cache_.anchor = cur.anchor_.back();
+		xsel_cache_.cursor = cur.top();
+		xsel_cache_.anchor = cur.anchor_.top();
 		xsel_cache_.set = cur.selection();
-		sel = bv_->getLyXText()->selectionAsString(*bv_->buffer(), false);
+		sel = cur.selectionAsString(false);
 		if (!sel.empty())
 			workarea().putClipboard(sel);
-	} 
+	}
 }
 
 
@@ -564,7 +558,7 @@ void BufferView::Pimpl::selectionLost()
 {
 	if (available()) {
 		screen().hideCursor();
-		bv_->cursor().clearSelection();
+		cursor_.clearSelection();
 		xsel_cache_.set = false;
 	}
 }
@@ -578,55 +572,99 @@ void BufferView::Pimpl::workAreaResize()
 	bool const widthChange = workarea().workWidth() != work_area_width;
 	bool const heightChange = workarea().workHeight() != work_area_height;
 
-	// update from work area
+	// Update from work area
 	work_area_width = workarea().workWidth();
 	work_area_height = workarea().workHeight();
 
-	if (buffer_ != 0) {
-		if (widthChange) {
-			// The visible LyXView need a resize
-			resizeCurrentBuffer();
-		}
+	if (buffer_ && widthChange) {
+		// The visible LyXView need a resize
+		resizeCurrentBuffer();
 	}
 
 	if (widthChange || heightChange)
 		update();
 
-	// always make sure that the scrollbar is sane.
+	// Always make sure that the scrollbar is sane.
 	updateScrollbar();
 	owner_->updateLayoutChoice();
 }
 
 
-void BufferView::Pimpl::update()
+bool BufferView::Pimpl::fitCursor()
 {
-	//lyxerr << "BufferView::update()" << endl;
-	// fix cursor coordinate cache in case something went wrong
-
-	// check needed to survive LyX startup
-	if (bv_->getLyXText()) {
-		// update all 'visible' paragraphs
-		ParagraphList::iterator beg;
-		ParagraphList::iterator end;
-		getParsInRange(buffer_->paragraphs(),
-			       top_y(), top_y() + workarea().workHeight(),
-			       beg, end);
-		bv_->text()->redoParagraphs(beg, end);
-		updateScrollbar();
+	if (bv_funcs::status(bv_, cursor_) == bv_funcs::CUR_INSIDE) {
+		LyXFont const font = cursor_.getFont();
+		int const asc = font_metrics::maxAscent(font);
+		int const des = font_metrics::maxDescent(font);
+		Point const p = bv_funcs::getPos(cursor_, cursor_.boundary());
+		if (p.y_ - asc >= 0 && p.y_ + des < workarea().workHeight())
+			return false;
 	}
-	screen().redraw(*bv_);
+	center();
+	return true;
+}
+
+
+void BufferView::Pimpl::update(Update::flags flags)
+{
+	lyxerr[Debug::DEBUG]
+                << BOOST_CURRENT_FUNCTION
+                << "[fitcursor = " << (flags & Update::FitCursor)
+                << ", forceupdate = " << (flags & Update::Force)
+                << ", singlepar = " << (flags & Update::SinglePar)
+                << "]  buffer: " << buffer_ << endl;
+
+	// Check needed to survive LyX startup
+	if (buffer_) {
+		// Update macro store
+		buffer_->buildMacros();
+
+		CoordCache backup;
+		std::swap(theCoords, backup);
+
+		// This, together with doneUpdating(), verifies (using
+		// asserts) that screen redraw is not called from
+		// within itself.
+		theCoords.startUpdating();
+
+		// First drawing step
+		ViewMetricsInfo vi = metrics();
+		bool forceupdate(flags & Update::Force);
+
+		if ((flags & Update::FitCursor) && fitCursor()) {
+			forceupdate = true;
+			vi = metrics(flags & Update::SinglePar);
+		}
+		if (forceupdate) {
+			// Second drawing step
+			screen().redraw(*bv_, vi);
+		} else {
+			// Abort updating of the coord
+			// cache - just restore the old one
+			std::swap(theCoords, backup);
+		}
+	} else
+		screen().greyOut();
+
+	// And the scrollbar
+	updateScrollbar();
+	owner_->view_state_changed();
 }
 
 
 // Callback for cursor timer
 void BufferView::Pimpl::cursorToggle()
 {
-	if (!buffer_) {
-		cursor_timeout.restart();
-		return;
+	if (buffer_) {
+		screen().toggleCursor(*bv_);
+
+		// Use this opportunity to deal with any child processes that
+		// have finished but are waiting to communicate this fact
+		// to the rest of LyX.
+		ForkedcallsController & fcc = ForkedcallsController::get();
+		fcc.handleCompletedProcesses();
 	}
 
-	screen().toggleCursor(*bv_);
 	cursor_timeout.restart();
 }
 
@@ -639,17 +677,17 @@ bool BufferView::Pimpl::available() const
 
 Change const BufferView::Pimpl::getCurrentChange()
 {
-	if (!bv_->buffer()->params().tracking_changes)
+	if (!buffer_->params().tracking_changes)
 		return Change(Change::UNCHANGED);
 
 	LyXText * text = bv_->getLyXText();
-	LCursor & cur = bv_->cursor();
+	LCursor & cur = cursor_;
 
 	if (!cur.selection())
 		return Change(Change::UNCHANGED);
 
-	return text->getPar(cur.selBegin())
-		->lookupChangeFull(cur.selBegin().pos());
+	return text->getPar(cur.selBegin().pit()).
+			lookupChangeFull(cur.selBegin().pos());
 }
 
 
@@ -657,11 +695,12 @@ void BufferView::Pimpl::savePosition(unsigned int i)
 {
 	if (i >= saved_positions_num)
 		return;
+	BOOST_ASSERT(cursor_.inTexted());
 	saved_positions[i] = Position(buffer_->fileName(),
-				      bv_->text()->cursorPar()->id(),
-				      bv_->text()->cursor().pos());
+				      cursor_.paragraph().id(),
+				      cursor_.pos());
 	if (i > 0)
-		owner_->message(bformat(_("Saved bookmark %1$s"), tostr(i)));
+		owner_->message(bformat(_("Saved bookmark %1$d"), i));
 }
 
 
@@ -672,7 +711,7 @@ void BufferView::Pimpl::restorePosition(unsigned int i)
 
 	string const fname = saved_positions[i].filename;
 
-	bv_->cursor().clearSelection();
+	cursor_.clearSelection();
 
 	if (fname != buffer_->fileName()) {
 		Buffer * b = 0;
@@ -680,21 +719,21 @@ void BufferView::Pimpl::restorePosition(unsigned int i)
 			b = bufferlist.getBuffer(fname);
 		else {
 			b = bufferlist.newBuffer(fname);
-			::loadLyXFile(b, fname); // don't ask, just load it
+			// Don't ask, just load it
+			::loadLyXFile(b, fname);
 		}
 		if (b)
-			buffer(b);
+			setBuffer(b);
 	}
 
 	ParIterator par = buffer_->getParFromID(saved_positions[i].par_id);
 	if (par == buffer_->par_iterator_end())
 		return;
 
-	bv_->text()->setCursor(par.pit(),
-			     min(par->size(), saved_positions[i].par_pos));
+	bv_->setCursor(makeDocIterator(par, min(par->size(), saved_positions[i].par_pos)));
 
 	if (i > 0)
-		owner_->message(bformat(_("Moved to bookmark %1$s"), tostr(i)));
+		owner_->message(bformat(_("Moved to bookmark %1$d"), i));
 }
 
 
@@ -722,79 +761,19 @@ void BufferView::Pimpl::switchKeyMap()
 
 void BufferView::Pimpl::center()
 {
-	LyXText * text = bv_->text();
-
-	bv_->cursor().clearSelection();
-	int const half_height = workarea().workHeight() / 2;
-	int new_y = text->cursorY(bv_->cursor().cursor_.front()) - half_height;
-	if (new_y < 0)
-		new_y = 0;
-
-	// FIXME: look at this comment again ...
-	// This updates top_y() but means the fitCursor() call
-	// from the update(FITCUR) doesn't realise that we might
-	// have moved (e.g. from GOTOPARAGRAPH), so doesn't cause
-	// the scrollbar to be updated as it should, so we have
-	// to do it manually. Any operation that does a center()
-	// and also might have moved top_y() must make sure to call
-	// updateScrollbar() currently. Never mind that this is a
-	// pretty obfuscated way of updating text->top_y()
-	top_y(new_y);
+	CursorSlice & bot = cursor_.bottom();
+	lyx::pit_type const pit = bot.pit();
+	bot.text()->redoParagraph(pit);
+	Paragraph const & par = bot.text()->paragraphs()[pit];
+	anchor_ref_ = pit;
+	offset_ref_ = bv_funcs::coordOffset(cursor_, cursor_.boundary()).y_
+		+ par.ascent() - workarea().workHeight() / 2;
 }
 
 
-void BufferView::Pimpl::stuffClipboard(string const & stuff) const
+void BufferView::Pimpl::stuffClipboard(string const & content) const
 {
-	workarea().putClipboard(stuff);
-}
-
-
-InsetBase * BufferView::Pimpl::getInsetByCode(InsetBase::Code code)
-{
-#if 0
-	CursorSlice cursor = bv_->getLyXText()->cursor;
-	Buffer::inset_iterator it =
-		find_if(Buffer::inset_iterator(
-			cursorPar(), cursor().pos()),
-			buffer_->inset_iterator_end(),
-			lyx::compare_memfun(&Inset::lyxCode, code));
-	return it != buffer_->inset_iterator_end() ? (*it) : 0;
-#else
-	// Ok, this is a little bit too brute force but it
-	// should work for now. Better infrastructure is coming. (Lgb)
-
-	Buffer * b = bv_->buffer();
-	LyXText * text = bv_->getLyXText();
-
-	Buffer::inset_iterator beg = b->inset_iterator_begin();
-	Buffer::inset_iterator end = b->inset_iterator_end();
-
-	bool cursor_par_seen = false;
-
-	for (; beg != end; ++beg) {
-		if (beg.getPar() == text->cursorPar()) {
-			cursor_par_seen = true;
-		}
-		if (cursor_par_seen) {
-			if (beg.getPar() == text->cursorPar()
-			    && beg.getPos() >= text->cursor().pos()) {
-				break;
-			}
-			if (beg.getPar() != text->cursorPar()) {
-				break;
-			}
-		}
-
-	}
-	if (beg != end) {
-		// Now find the first inset that matches code.
-		for (; beg != end; ++beg) {
-			if (beg->lyxCode() == code)
-				return &(*beg);
-		}
-	}
-	return 0;
-#endif
+	workarea().putClipboard(content);
 }
 
 
@@ -818,7 +797,7 @@ void BufferView::Pimpl::MenuInsertLyXFile(string const & filenm)
 			make_pair(string(_("Documents|#o#O")),
 				  string(lyxrc.document_path)),
 			make_pair(string(_("Examples|#E#e")),
-				  string(AddPath(system_lyxdir(), "examples"))));
+				  string(AddPath(package().system_support(), "examples"))));
 
 		FileDialog::Result result =
 			fileDlg.open(initpath,
@@ -837,152 +816,224 @@ void BufferView::Pimpl::MenuInsertLyXFile(string const & filenm)
 		}
 	}
 
-	// get absolute path of file and add ".lyx" to the filename if
-	// necessary
+	// Get absolute path of file and add ".lyx"
+	// to the filename if necessary
 	filename = FileSearch(string(), filename, "lyx");
 
 	string const disp_fn = MakeDisplayPath(filename);
 	owner_->message(bformat(_("Inserting document %1$s..."), disp_fn));
-	if (bv_->insertLyXFile(filename))
-		owner_->message(bformat(_("Document %1$s inserted."),
-					disp_fn));
-	else
-		owner_->message(bformat(_("Could not insert document %1$s"),
-					disp_fn));
+
+	cursor_.clearSelection();
+	bv_->getLyXText()->breakParagraph(cursor_);
+
+	BOOST_ASSERT(cursor_.inTexted());
+
+	string const fname = MakeAbsPath(filename);
+	bool const res = buffer_->readFile(fname, cursor_.pit());
+	resizeCurrentBuffer();
+
+	string s = res ? _("Document %1$s inserted.")
+	               : _("Could not insert document %1$s");
+	owner_->message(bformat(s, disp_fn));
 }
 
 
 void BufferView::Pimpl::trackChanges()
 {
-	Buffer * buf = bv_->buffer();
-	bool const tracking(buf->params().tracking_changes);
+	bool const tracking = buffer_->params().tracking_changes;
 
 	if (!tracking) {
-		ParIterator const end = buf->par_iterator_end();
-		for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
-			it->trackChanges();
-		buf->params().tracking_changes = true;
+		for_each(buffer_->par_iterator_begin(),
+			 buffer_->par_iterator_end(),
+			 bind(&Paragraph::trackChanges, _1, Change::UNCHANGED));
+		buffer_->params().tracking_changes = true;
 
-		// we cannot allow undos beyond the freeze point
-		buf->undostack().clear();
+		// We cannot allow undos beyond the freeze point
+		buffer_->undostack().clear();
 	} else {
 		update();
-		bv_->text()->setCursor(0, 0);
+		bv_->text()->setCursor(cursor_, 0, 0);
+#ifdef WITH_WARNINGS
 #warning changes FIXME
-		bool found = lyx::find::findNextChange(bv_);
+#endif
+		bool const found = lyx::find::findNextChange(bv_);
 		if (found) {
 			owner_->getDialogs().show("changes");
 			return;
 		}
 
-		ParIterator const end = buf->par_iterator_end();
-		for (ParIterator it = buf->par_iterator_begin(); it != end; ++it)
-			it->untrackChanges();
-		buf->params().tracking_changes = false;
+		for_each(buffer_->par_iterator_begin(),
+			 buffer_->par_iterator_end(),
+			 mem_fun_ref(&Paragraph::untrackChanges));
+
+		buffer_->params().tracking_changes = false;
 	}
 
-	buf->redostack().clear();
+	buffer_->redostack().clear();
 }
 
 
 bool BufferView::Pimpl::workAreaDispatch(FuncRequest const & cmd0)
 {
-	//
-	// this is only called for mouse related events.
-	//
+	//lyxerr << BOOST_CURRENT_FUNCTION << "[ cmd0 " << cmd0 << "]" << endl;
+
+	// This is only called for mouse related events including
+	// LFUN_FILE_OPEN generated by drag-and-drop.
 	FuncRequest cmd = cmd0;
-	cmd.y += bv_->top_y();
-	lyxerr << "*** workAreaDispatch: request: " << cmd << std::endl;
-	LCursor cur(*bv_);
-	switch (cmd.action) {
-#if 0
-	case LFUN_MOUSE_MOTION: {
-		if (!available())
-			return false;
-		FuncRequest cmd1 = cmd;
-		InsetBase * inset = cur.inset();
-		DispatchResult res;
-		if (inset) {
-			res = inset->dispatch(cur, cmd);
-		} else {
-			res = cur.innerText()->dispatch(cur, cmd);
-		}
 
-		if (bv_->fitCursor() || res.update()) {
-			bv_->update();
-			cur.updatePos();
-		}
+	// Handle drag&drop
+	if (cmd.action == LFUN_FILE_OPEN) {
+		owner_->dispatch(cmd);
 		return true;
 	}
-#endif
 
-	case LFUN_MOUSE_MOTION:
-	case LFUN_MOUSE_PRESS:
-	case LFUN_MOUSE_RELEASE:
-	case LFUN_MOUSE_DOUBLE:
-	case LFUN_MOUSE_TRIPLE: {
-		// We pass those directly to the Bufferview, since
-		// otherwise selection handling breaks down
+	if (!buffer_)
+		return false;
 
-		// Doesn't go through lyxfunc, so we need to update
-		// the layout choice etc. ourselves
+	LCursor cur(*bv_);
+	cur.push(buffer_->inset());
+	cur.selection() = cursor_.selection();
 
-		// e.g. Qt mouse press when no buffer
-		if (!available())
-			return false;
+	// Doesn't go through lyxfunc, so we need to update
+	// the layout choice etc. ourselves
 
-		screen().hideCursor();
+	// E.g. Qt mouse press when no buffer
+	if (!available())
+		return false;
 
-		// either the inset under the cursor or the surrounding LyXText will
-		// handle this event.
+	screen().hideCursor();
 
-		// built temporary path to inset
-		LyXText * text = bv_->text();
-		InsetBase * const inset_hit = text->checkInsetHit(cmd.x, cmd.y);
-		if (inset_hit) 
-			inset_hit->edit(cur, cmd.x, cmd.y);
+	// Either the inset under the cursor or the
+	// surrounding LyXText will handle this event.
+
+	// Build temporary cursor.
+	cmd.y = min(max(cmd.y,-1), workarea().workHeight());
+	InsetBase * inset = bv_->text()->editXY(cur, cmd.x, cmd.y);
+	//lyxerr << BOOST_CURRENT_FUNCTION
+	//       << " * hit inset at tip: " << inset << endl;
+	//lyxerr << BOOST_CURRENT_FUNCTION
+	//       << " * created temp cursor:" << cur << endl;
+
+	// Put anchor at the same position.
+	cur.resetAnchor();
+
+	// Try to dispatch to an non-editable inset near this position
+	// via the temp cursor. If the inset wishes to change the real
+	// cursor it has to do so explicitly by using
+	//  cur.bv().cursor() = cur;  (or similar)
+	if (inset)
+		inset->dispatch(cur, cmd);
+
+	// Now dispatch to the temporary cursor. If the real cursor should
+	// be modified, the inset's dispatch has to do so explicitly.
+	if (!cur.result().dispatched())
+		cur.dispatch(cmd);
+
+	if (cur.result().dispatched()) {
+		// Redraw if requested or necessary.
+		if (cur.result().update())
+			update(Update::FitCursor | Update::Force);
 		else
-			text->setCursorFromCoordinates(cur.current(), cmd.x, cmd.y);
-		lyxerr << "created temp cursor: " << cur << endl;
+			update();
+	}
 
-		// Dispatch to the temp cursor.
-		// An inset (or LyXText) can assign this to bv->cursor()
-		// if it wishes to do so.
-		DispatchResult res = cur.dispatch(cmd);
+	// See workAreaKeyPress
+	cursor_timeout.restart();
+	screen().showCursor(*bv_);
 
-		if (bv_->fitCursor() || res.update())
-			bv_->update();
+	// Skip these when selecting
+	if (cmd.action != LFUN_MOUSE_MOTION) {
+		owner_->updateLayoutChoice();
+		owner_->updateToolbars();
+	}
 
-		// see workAreaKeyPress
-		cursor_timeout.restart();
-		screen().showCursor(*bv_);
+	// Slight hack: this is only called currently when we
+	// clicked somewhere, so we force through the display
+	// of the new status here.
+	owner_->clearMessage();
+	return true;
+}
 
-		// skip these when selecting
-		if (cmd.action != LFUN_MOUSE_MOTION) {
-			owner_->updateLayoutChoice();
-			owner_->updateToolbar();
-		}
 
-		// slight hack: this is only called currently when we
-		// clicked somewhere, so we force through the display
-		// of the new status here.
-		owner_->clearMessage();
-		return true;
+FuncStatus BufferView::Pimpl::getStatus(FuncRequest const & cmd)
+{
+	FuncStatus flag;
+
+	switch (cmd.action) {
+
+	case LFUN_UNDO:
+		flag.enabled(!buffer_->undostack().empty());
+		break;
+	case LFUN_REDO:
+		flag.enabled(!buffer_->redostack().empty());
+		break;
+	case LFUN_FILE_INSERT:
+	case LFUN_FILE_INSERT_ASCII_PARA:
+	case LFUN_FILE_INSERT_ASCII:
+	case LFUN_FONT_STATE:
+	case LFUN_INSERT_LABEL:
+	case LFUN_BOOKMARK_SAVE:
+	case LFUN_GOTO_PARAGRAPH:
+	case LFUN_GOTOERROR:
+	case LFUN_GOTONOTE:
+	case LFUN_REFERENCE_GOTO:
+	case LFUN_WORD_FIND:
+	case LFUN_WORD_REPLACE:
+	case LFUN_MARK_OFF:
+	case LFUN_MARK_ON:
+	case LFUN_SETMARK:
+	case LFUN_CENTER:
+	case LFUN_BIBDB_ADD:
+	case LFUN_BIBDB_DEL:
+	case LFUN_WORDS_COUNT:
+		flag.enabled(true);
+		break;
+
+	case LFUN_LABEL_GOTO: {
+		flag.enabled(!cmd.argument.empty()
+		    || getInsetByCode<InsetRef>(cursor_, InsetBase::REF_CODE));
+		break;
+	}
+
+	case LFUN_BOOKMARK_GOTO:
+		flag.enabled(isSavedPosition(convert<unsigned int>(cmd.argument)));
+		break;
+	case LFUN_TRACK_CHANGES:
+		flag.enabled(true);
+		flag.setOnOff(buffer_->params().tracking_changes);
+		break;
+
+	case LFUN_OUTPUT_CHANGES: {
+		LaTeXFeatures features(*buffer_, buffer_->params(), false);
+		flag.enabled(buffer_ && buffer_->params().tracking_changes
+			&& features.isAvailable("dvipost"));
+		flag.setOnOff(buffer_->params().output_changes);
+		break;
 	}
 
+	case LFUN_MERGE_CHANGES:
+	case LFUN_ACCEPT_CHANGE: // what about these two
+	case LFUN_REJECT_CHANGE: // what about these two
+	case LFUN_ACCEPT_ALL_CHANGES:
+	case LFUN_REJECT_ALL_CHANGES:
+		flag.enabled(buffer_ && buffer_->params().tracking_changes);
+		break;
 	default:
-		lyxerr << "*** UNDISPATCHED: " << cmd;
-		//owner_->dispatch(cmd);
+		flag.enabled(false);
 	}
-	return true;
+
+	return flag;
 }
 
 
+
 bool BufferView::Pimpl::dispatch(FuncRequest const & cmd)
 {
-	lyxerr << "*** BufferView::Pimpl: request: " << cmd << std::endl;
+	//lyxerr << BOOST_CURRENT_FUNCTION
+	//       << [ cmd = " << cmd << "]" << endl;
+
 	// Make sure that the cached BufferView is correct.
-	lyxerr[Debug::ACTION] << "BufferView::Pimpl::Dispatch:"
+	lyxerr[Debug::ACTION] << BOOST_CURRENT_FUNCTION
 		<< " action[" << cmd.action << ']'
 		<< " arg[" << cmd.argument << ']'
 		<< " x[" << cmd.x << ']'
@@ -990,15 +1041,30 @@ bool BufferView::Pimpl::dispatch(FuncRequest const & cmd)
 		<< " button[" << cmd.button() << ']'
 		<< endl;
 
-	LyXTextClass const & tclass = buffer_->params().getLyXTextClass();
-	LCursor & cur = bv_->cursor();
+	LCursor & cur = cursor_;
 
 	switch (cmd.action) {
 
-	case LFUN_SCROLL_INSET:
-		// this is not handled here as this function is only active
-		// if we have a locking_inset and that one is (or contains)
-		// a tabular-inset
+	case LFUN_UNDO:
+		if (available()) {
+			cur.message(_("Undo"));
+			cur.clearSelection();
+			if (!textUndo(*bv_))
+				cur.message(_("No further undo information"));
+			update();
+			switchKeyMap();
+		}
+		break;
+
+	case LFUN_REDO:
+		if (available()) {
+			cur.message(_("Redo"));
+			cur.clearSelection();
+			if (!textRedo(*bv_))
+				cur.message(_("No further redo information"));
+			update();
+			switchKeyMap();
+		}
 		break;
 
 	case LFUN_FILE_INSERT:
@@ -1014,32 +1080,23 @@ bool BufferView::Pimpl::dispatch(FuncRequest const & cmd)
 		break;
 
 	case LFUN_FONT_STATE:
-		owner_->getLyXFunc().setMessage(currentState(bv_));
-		break;
-
-	case LFUN_INSERT_LABEL: {
-		// Try and generate a valid label
-		string const contents = cmd.argument.empty() ?
-			getPossibleLabel(*bv_) : cmd.argument;
-		InsetCommandParams icp("label", contents);
-		string data = InsetCommandMailer::params2string("label", icp);
-		owner_->getDialogs().show("label", data, 0);
+		cur.message(cur.currentState());
 		break;
-	}
 
 	case LFUN_BOOKMARK_SAVE:
-		savePosition(strToUnsignedInt(cmd.argument));
+		savePosition(convert<unsigned int>(cmd.argument));
 		break;
 
 	case LFUN_BOOKMARK_GOTO:
-		restorePosition(strToUnsignedInt(cmd.argument));
+		restorePosition(convert<unsigned int>(cmd.argument));
 		break;
 
-	case LFUN_REF_GOTO: {
+	case LFUN_LABEL_GOTO: {
 		string label = cmd.argument;
 		if (label.empty()) {
 			InsetRef * inset =
-				static_cast<InsetRef*>(getInsetByCode(InsetBase::REF_CODE));
+				getInsetByCode<InsetRef>(cursor_,
+							 InsetBase::REF_CODE);
 			if (inset) {
 				label = inset->getContents();
 				savePosition(0);
@@ -1048,92 +1105,42 @@ bool BufferView::Pimpl::dispatch(FuncRequest const & cmd)
 
 		if (!label.empty())
 			bv_->gotoLabel(label);
-	}
-	break;
-
-	// --- accented characters ---------------------------
-
-	case LFUN_UMLAUT:
-	case LFUN_CIRCUMFLEX:
-	case LFUN_GRAVE:
-	case LFUN_ACUTE:
-	case LFUN_TILDE:
-	case LFUN_CEDILLA:
-	case LFUN_MACRON:
-	case LFUN_DOT:
-	case LFUN_UNDERDOT:
-	case LFUN_UNDERBAR:
-	case LFUN_CARON:
-	case LFUN_SPECIAL_CARON:
-	case LFUN_BREVE:
-	case LFUN_TIE:
-	case LFUN_HUNG_UMLAUT:
-	case LFUN_CIRCLE:
-	case LFUN_OGONEK:
-		if (cmd.argument.empty()) {
-			// As always...
-			owner_->getLyXFunc().handleKeyFunc(cmd.action);
-		} else {
-			owner_->getLyXFunc().handleKeyFunc(cmd.action);
-			owner_->getIntl().getTransManager()
-				.TranslateAndInsert(cmd.argument[0], bv_->getLyXText());
-			update();
-		}
-		break;
-
-	case LFUN_INSET_INSERT: {
-		// Same as above.
-		BOOST_ASSERT(false);
-		InsetBase * inset = createInset(bv_, cmd);
-		if (!inset || !insertInset(inset))
-			delete inset;
 		break;
 	}
 
-	case LFUN_FLOAT_LIST:
-		if (tclass.floats().typeExist(cmd.argument)) {
-			InsetBase * inset = new InsetFloatList(cmd.argument);
-			if (!insertInset(inset, tclass.defaultLayoutName()))
-				delete inset;
+	case LFUN_GOTO_PARAGRAPH: {
+		int const id = convert<int>(cmd.argument);
+		ParIterator par = buffer_->getParFromID(id);
+		if (par == buffer_->par_iterator_end()) {
+			lyxerr[Debug::INFO] << "No matching paragraph found! ["
+					    << id << ']' << endl;
+			break;
 		} else {
-			lyxerr << "Non-existent float type: "
-			       << cmd.argument << endl;
+			lyxerr[Debug::INFO] << "Paragraph " << par->id()
+					    << " found." << endl;
 		}
-		break;
 
-	case LFUN_LAYOUT_PARAGRAPH: {
-		string data;
-		params2string(*bv_->getLyXText()->cursorPar(), data);
-		data = "show\n" + data;
-		bv_->owner()->getDialogs().show("paragraph", data);
+		// Set the cursor
+		bv_->setCursor(makeDocIterator(par, 0));
+
+		update();
+		switchKeyMap();
 		break;
 	}
 
-	case LFUN_PARAGRAPH_UPDATE:
-		updateParagraphDialog();
+	case LFUN_GOTOERROR:
+		bv_funcs::gotoInset(bv_, InsetBase::ERROR_CODE, false);
 		break;
 
-	case LFUN_PARAGRAPH_APPLY:
-		setParagraphParams(*bv_, cmd.argument);
+	case LFUN_GOTONOTE:
+		bv_funcs::gotoInset(bv_, InsetBase::NOTE_CODE, false);
 		break;
 
-	case LFUN_THESAURUS_ENTRY: {
-		string arg = cmd.argument;
-
-		if (arg.empty()) {
-			arg = bv_->getLyXText()->selectionAsString(*buffer_,
-								   false);
-
-			// FIXME
-			if (arg.size() > 100 || arg.empty()) {
-				// Get word or selection
-				bv_->getLyXText()->selectWordWhenUnderCursor(lyx::WHOLE_WORD);
-				arg = bv_->getLyXText()->selectionAsString(*buffer_, false);
-				// FIXME: where is getLyXText()->unselect(bv_) ?
-			}
-		}
-
-		bv_->owner()->getDialogs().show("thesaurus", arg);
+	case LFUN_REFERENCE_GOTO: {
+		vector<InsetBase_code> tmp;
+		tmp.push_back(InsetBase::LABEL_CODE);
+		tmp.push_back(InsetBase::REF_CODE);
+		bv_funcs::gotoInset(bv_, tmp, true);
 		break;
 	}
 
@@ -1141,37 +1148,34 @@ bool BufferView::Pimpl::dispatch(FuncRequest const & cmd)
 		trackChanges();
 		break;
 
+	case LFUN_OUTPUT_CHANGES: {
+		bool const state = buffer_->params().output_changes;
+		buffer_->params().output_changes = !state;
+		break;
+	}
+
 	case LFUN_MERGE_CHANGES:
 		owner_->getDialogs().show("changes");
 		break;
 
 	case LFUN_ACCEPT_ALL_CHANGES: {
-		bv_->text()->setCursor(0, 0);
+		cursor_.reset(buffer_->inset());
+#ifdef WITH_WARNINGS
 #warning FIXME changes
+#endif
 		while (lyx::find::findNextChange(bv_))
-			bv_->getLyXText()->acceptChange();
+			bv_->getLyXText()->acceptChange(cursor_);
 		update();
 		break;
 	}
 
 	case LFUN_REJECT_ALL_CHANGES: {
-		bv_->text()->setCursor(0, 0);
+		cursor_.reset(buffer_->inset());
+#ifdef WITH_WARNINGS
 #warning FIXME changes
+#endif
 		while (lyx::find::findNextChange(bv_))
-			bv_->getLyXText()->rejectChange();
-		update();
-		break;
-	}
-
-	case LFUN_ACCEPT_CHANGE: {
-		bv_->getLyXText()->acceptChange();
-		update();
-		break;
-	}
-
-	case LFUN_REJECT_CHANGE: {
-		bv_->getLyXText()->rejectChange();
-		update();
+			bv_->getLyXText()->rejectChange(cursor_);
 		break;
 	}
 
@@ -1185,124 +1189,166 @@ bool BufferView::Pimpl::dispatch(FuncRequest const & cmd)
 
 	case LFUN_MARK_OFF:
 		cur.clearSelection();
-		bv_->update();
 		cur.resetAnchor();
-		cmd.message(N_("Mark off"));
+		cur.message(N_("Mark off"));
 		break;
 
 	case LFUN_MARK_ON:
 		cur.clearSelection();
 		cur.mark() = true;
-		bv_->update();
 		cur.resetAnchor();
-		cmd.message(N_("Mark on"));
+		cur.message(N_("Mark on"));
 		break;
 
 	case LFUN_SETMARK:
 		cur.clearSelection();
 		if (cur.mark()) {
-			cmd.message(N_("Mark removed"));
+			cur.mark() = false;
+			cur.message(N_("Mark removed"));
 		} else {
 			cur.mark() = true;
-			cmd.message(N_("Mark set"));
+			cur.message(N_("Mark set"));
 		}
 		cur.resetAnchor();
-		bv_->update();
 		break;
 
-	case LFUN_UNKNOWN_ACTION:
-		cmd.errorMessage(N_("Unknown function!"));
+	case LFUN_CENTER:
+		center();
+		break;
+
+	case LFUN_BIBDB_ADD: {
+		LCursor tmpcur = cursor_;
+		bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
+		InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
+						InsetBase::BIBTEX_CODE);
+		if (inset)
+			inset->addDatabase(cmd.argument);
+		break;
+	}
+
+	case LFUN_BIBDB_DEL: {
+		LCursor tmpcur = cursor_;
+		bv_funcs::findInset(tmpcur, InsetBase::BIBTEX_CODE, false);
+		InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
+						InsetBase::BIBTEX_CODE);
+		if (inset)
+			inset->delDatabase(cmd.argument);
 		break;
+	}
+
+	case LFUN_WORDS_COUNT: {
+		DocIterator from, to;
+		if (cur.selection()) {
+			from = cur.selectionBegin();
+			to = cur.selectionEnd();
+		} else {
+			from = doc_iterator_begin(buffer_->inset());
+			to = doc_iterator_end(buffer_->inset());
+		}
+		int const count = countWords(from, to);
+		string message;
+		if (count != 1) {
+			if (cur.selection())
+				message = bformat(_("%1$d words in selection."),
+					  count);
+				else
+					message = bformat(_("%1$d words in document."),
+							  count);
+		}
+		else {
+			if (cur.selection())
+				message = _("One word in selection.");
+			else
+				message = _("One word in document.");
+		}
 
+		Alert::information(_("Count words"), message);
+	}
+		break;
 	default:
-		return cur.dispatch(cmd).dispatched();
+		return false;
 	}
 
 	return true;
 }
 
 
-bool BufferView::Pimpl::insertInset(InsetBase * inset, string const & lout)
+ViewMetricsInfo BufferView::Pimpl::metrics(bool singlepar)
 {
-	// not quite sure if we want this...
-	bv_->text()->recUndo(bv_->text()->cursor().par());
-	freezeUndo();
+	// Remove old position cache
+	theCoords.clear();
+	BufferView & bv = *bv_;
+	LyXText * const text = bv.text();
+	if (anchor_ref_ > int(text->paragraphs().size() - 1)) {
+		anchor_ref_ = int(text->paragraphs().size() - 1);
+		offset_ref_ = 0;
+	}
 
-	bv_->cursor().clearSelection();
-	if (!lout.empty()) {
-		bv_->text()->breakParagraph(bv_->buffer()->paragraphs());
+	lyx::pit_type const pit = anchor_ref_;
+	int pit1 = pit;
+	int pit2 = pit;
+	size_t const npit = text->paragraphs().size();
+
+	lyxerr[Debug::DEBUG]
+                << BOOST_CURRENT_FUNCTION
+                << " npit: " << npit
+                << " pit1: " << pit1
+                << " pit2: " << pit2
+                << endl;
+
+	// Rebreak anchor par
+	text->redoParagraph(pit);
+	int y0 = text->getPar(pit1).ascent() - offset_ref_;
+
+	// Redo paragraphs above cursor if necessary
+	int y1 = y0;
+	while (!singlepar && y1 > 0 && pit1 > 0) {
+		y1 -= text->getPar(pit1).ascent();
+		--pit1;
+		text->redoParagraph(pit1);
+		y1 -= text->getPar(pit1).descent();
+	}
 
-		if (!bv_->text()->cursorPar()->empty()) {
-			bv_->text()->cursorLeft(bv_);
-			bv_->text()->breakParagraph(bv_->buffer()->paragraphs());
-		}
 
-		string lres = lout;
-		LyXTextClass const & tclass = buffer_->params().getLyXTextClass();
-		bool hasLayout = tclass.hasLayout(lres);
+	// Take care of ascent of first line
+	y1 -= text->getPar(pit1).ascent();
 
-		bv_->text()->setLayout(hasLayout ? lres : tclass.defaultLayoutName());
-		bv_->text()->setParagraph(Spacing(), LYX_ALIGN_LAYOUT, string(), 0);
-	}
-	bv_->cursor().innerText()->insertInset(inset);
-	unFreezeUndo();
-	return true;
-}
+	// Normalize anchor for next time
+	anchor_ref_ = pit1;
+	offset_ref_ = -y1;
 
+	// Grey at the beginning is ugly
+	if (pit1 == 0 && y1 > 0) {
+		y0 -= y1;
+		y1 = 0;
+		anchor_ref_ = 0;
+	}
 
-bool BufferView::Pimpl::ChangeInsets(InsetBase::Code code,
-				     string const & from, string const & to)
-{
-	bool need_update = false;
-	CursorSlice cur = bv_->text()->cursor();
-
-	ParIterator end = bv_->buffer()->par_iterator_end();
-	for (ParIterator it = bv_->buffer()->par_iterator_begin();
-	     it != end; ++it) {
-		bool changed_inset = false;
-		for (InsetList::iterator it2 = it->insetlist.begin();
-		     it2 != it->insetlist.end(); ++it2) {
-			if (it2->inset->lyxCode() == code) {
-				InsetCommand * inset = static_cast<InsetCommand *>(it2->inset);
-				if (inset->getContents() == from) {
-					inset->setContents(to);
-					changed_inset = true;
-				}
-			}
-		}
-		if (changed_inset) {
-			need_update = true;
+	// Redo paragraphs below cursor if necessary
+	int y2 = y0;
+	while (!singlepar && y2 < bv.workHeight() && pit2 < int(npit) - 1) {
+		y2 += text->getPar(pit2).descent();
+		++pit2;
+		text->redoParagraph(pit2);
+		y2 += text->getPar(pit2).ascent();
+	}
 
-			// FIXME
+	// Take care of descent of last line
+	y2 += text->getPar(pit2).descent();
 
-			// The test it.size() == 1 was needed to prevent crashes.
-			// How to set the cursor correctly when it.size() > 1 ??
-			if (it.size() == 1) {
-				bv_->text()->setCursorIntern(bv_->text()->parOffset(it.pit()), 0);
-				bv_->text()->redoParagraph(bv_->text()->cursorPar());
-			}
-		}
+	// The coordinates of all these paragraphs are correct, cache them
+	int y = y1;
+	for (lyx::pit_type pit = pit1; pit <= pit2; ++pit) {
+		y += text->getPar(pit).ascent();
+		theCoords.parPos()[text][pit] = Point(0, y);
+		y += text->getPar(pit).descent();
 	}
-	bv_->text()->setCursorIntern(cur.par(), cur.pos());
-	return need_update;
-}
 
+	lyxerr[Debug::DEBUG]
+                << BOOST_CURRENT_FUNCTION
+                << " y1: " << y1
+                << " y2: " << y2
+                << endl;
 
-void BufferView::Pimpl::updateParagraphDialog()
-{
-	if (!bv_->owner()->getDialogs().visible("paragraph"))
-		return;
-	CursorSlice const & cur = bv_->cursor().innerTextSlice();
-	LyXText * text = bv_->cursor().innerText();
-	Paragraph const & par = *text->getPar(cur.par());
-	string data;
-	params2string(par, data);
-
-	// Will the paragraph accept changes from the dialog?
-	InsetBase * const inset = cur.inset();
-	bool const accept =
-		!(inset && inset->forceDefaultParagraphs(inset));
-
-	data = "update " + tostr(accept) + '\n' + data;
-	bv_->owner()->getDialogs().update("paragraph", data);
+	return ViewMetricsInfo(pit1, pit2, y1, y2, singlepar);
 }