Introduce InsetPreview.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@33890 a592a061-630c-0410-9148-cb99ea01b6c8

development/scons/scons_manifest.py

@@ -1035,6 +1035,7 @@ src_insets_header_files = Split('''
     InsetNote.h
     InsetOptArg.h
     InsetPhantom.h
+    InsetPreview.h
     InsetQuotes.h
     InsetRef.h
     InsetSpace.h
@@ -1090,6 +1091,7 @@ src_insets_files = Split('''
     InsetNote.cpp
     InsetOptArg.cpp
     InsetPhantom.cpp
+    InsetPreview.cpp
     InsetQuotes.cpp
     InsetRef.cpp
     InsetSpace.cpp

lib/layouts/stdinsets.inc

@@ -411,3 +411,9 @@ InsetLayout Caption
 	EndHTMLStyle
 End
 
+
+InsetLayout Preview
+	LabelString           Preview	
+	Decoration            minimalistic
+	MultiPar              true
+End

lib/ui/stdcontext.inc

@@ -592,6 +592,14 @@ Menuset
 	End
 
 
+# InsetPreview context menu
+#
+
+	Menu "context-preview"
+		Item "Dissolve Inset|D" "inset-dissolve"
+	End
+
+
 #
 # Toc Changes context menu
 #

lib/ui/stdmenus.inc

@@ -70,13 +70,13 @@ Menuset
 
 	Menu "file_vc"
 		OptItem "Register...|R" "vc-register"
-		OptItem "Check In Changes...|I" "vc-check-in"
+		OptItem "Check In Changes...|I" "vc-command DR \".\" \"TortoiseProc /command:commit /path:$$p\""
-		OptItem "Check Out for Edit|O" "vc-check-out"
+		OptItem "Check Out for Edit|O" "vc-command DR \".\" \"TortoiseProc /command:update /path:$$p\""
 		OptItem "Update Local Directory From Repository|d" "vc-repo-update"
-		OptItem "Revert to Repository Version|v" "vc-revert"
+		OptItem "Revert to Repository Version|v" "vc-command DR \".\" \"TortoiseProc /command:revert /path:$$p\""
 		OptItem "Undo Last Check In|U" "vc-undo-last"
 		OptItem "Compare with Older Revision|C" "vc-compare"
-		OptItem "Show History...|H" "dialog-show vclog"
+		OptItem "Show History...|H" "vc-command D \".\" \"TortoiseProc /command:log /path:$$p\""
 		OptItem "Use Locking Property|L" "vc-locking-toggle"
 	End
 
@@ -366,6 +366,7 @@ Menuset
 		Item "TeX Code|X" "ert-insert"
 		Item "Program Listing[[Menu]]" "listing-insert"
 		Item "Date" "date-insert"
+		Item "Preview|w" "preview-insert"
 	End
 
 	Menu "insert_special"

src/Color.cpp

@@ -240,6 +240,7 @@ ColorSet::ColorSet()
 	{ Color_buttonbg, N_("button background"), "buttonbg", "#dcd2c8", "buttonbg" },
 	{ Color_buttonhoverbg, N_("button background under focus"), "buttonhoverbg", "#C7C7CA", "buttonhoverbg" },
 	{ Color_paragraphmarker, N_("paragraph marker"), "paragraphmarker", grey80, "paragraphmarker"},
+	{ Color_previewframe, N_("preview frame"), "previewframe", "black", "previewframe"},
 	{ Color_inherit, N_("inherit"), "inherit", "black", "inherit" },
 	{ Color_regexpframe, N_("regexp frame"), "green", "green", "green" },
 	{ Color_ignore, N_("ignore"), "ignore", "black", "ignore" },

src/ColorCode.h

@@ -191,6 +191,8 @@ enum ColorCode
 	Color_buttonhoverbg,
 	/// Color used for the pilcrow sign to mark the end of a paragraph
 	Color_paragraphmarker,
+	/// Preview frame color
+	Color_previewframe,
 
 	// Logical attributes
 

src/FuncCode.h

@@ -445,6 +445,7 @@ enum FuncCode
 	LFUN_SPELLING_ADD,              // spitz 20100118
 	// 345
 	LFUN_SPELLING_IGNORE,           // spitz 20100118
+	LFUN_PREVIEW_INSERT,            // vfr, 20100328
 
 	LFUN_LASTACTION                 // end of the table
 };

src/LyXAction.cpp

@@ -368,6 +368,14 @@ void LyXAction::init()
  * \endvar
  */
 		{ LFUN_LISTING_INSERT, "listing-insert", Noop, Edit },
+/*!
+ * \var lyx::FuncCode lyx::LFUN_PREVIEW_INSERT
+ * \li Action: Inserts a new preview inset.
+ * \li Syntax: preview-insert
+ * \li Origin: vfr, 28 Mar 2010
+ * \endvar
+ */
+		{ LFUN_PREVIEW_INSERT, "preview-insert", Noop, Edit },
 /*!
  * \var lyx::FuncCode lyx::LFUN_TAB_INSERT
  * \li Action: Insert a tab into a listings inset.

src/Makefile.am

@@ -549,6 +549,7 @@ SOURCEFILESINSETS = \
 	insets/InsetNote.cpp \
 	insets/InsetOptArg.cpp \
 	insets/InsetPhantom.cpp \
+	insets/InsetPreview.cpp \
 	insets/InsetQuotes.cpp \
 	insets/InsetRef.cpp \
 	insets/InsetSpace.cpp \
@@ -591,6 +592,7 @@ HEADERFILESINSETS = \
 	insets/InsetInclude.h \
 	insets/InsetIndex.h \
 	insets/InsetInfo.h \
+	insets/InsetPreview.h \
 	insets/InsetLabel.h \
 	insets/InsetLayout.h \
 	insets/InsetLine.h \

src/Text3.cpp

@@ -1571,6 +1571,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 	case LFUN_MARGINALNOTE_INSERT:
 	case LFUN_OPTIONAL_INSERT:
 	case LFUN_INDEX_INSERT:
+	case LFUN_PREVIEW_INSERT:
 		// Open the inset, and move the current selection
 		// inside it.
 		doInsertInset(cur, this, cmd, true, true);
@@ -2388,6 +2389,9 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
 		if (cur.inTexted())
 			code = SPACE_CODE;
 		break;
+	case LFUN_PREVIEW_INSERT:
+		code = PREVIEW_CODE;
+		break;
 
 	case LFUN_MATH_INSERT:
 	case LFUN_MATH_AMS_MATRIX:

src/factory.cpp

@@ -47,6 +47,7 @@
 #include "insets/InsetNote.h"
 #include "insets/InsetOptArg.h"
 #include "insets/InsetPhantom.h"
+#include "insets/InsetPreview.h"
 #include "insets/InsetRef.h"
 #include "insets/InsetSpace.h"
 #include "insets/InsetTabular.h"
@@ -211,6 +212,9 @@ Inset * createInsetHelper(Buffer * buf, FuncRequest const & cmd)
 			return inset;
 		}
 
+		case LFUN_PREVIEW_INSERT:
+			return new InsetPreview(buf);
+
 		case LFUN_INSET_INSERT: {
 			string const name = cmd.getArg(0);
 			InsetCode code = insetCode(name);
@@ -324,6 +328,9 @@ Inset * createInsetHelper(Buffer * buf, FuncRequest const & cmd)
 				return new InsetVSpace(vspace);
 			}
 
+			case PREVIEW_CODE:
+				return new InsetPreview(buf);
+			
 			default:
 				lyxerr << "Inset '" << name << "' not permitted with LFUN_INSET_INSERT."
 						<< endl;
@@ -571,6 +578,8 @@ Inset * readInset(Lexer & lex, Buffer * buf)
 			inset.reset(new InsetFloatList(buf));
 		} else if (tmptok == "Info") {
 			inset.reset(new InsetInfo(buf));
+		} else if (tmptok == "Preview") {
+			inset.reset(new InsetPreview(buf));
 		} else {
 			lyxerr << "unknown Inset type '" << tmptok
 			       << "'" << endl;

src/insets/InsetCode.h

@@ -221,6 +221,8 @@ enum InsetCode {
 	///
 	ARGUMENT_PROXY_CODE, // 100
 	///
+	PREVIEW_CODE,
+	///
 	INSET_CODE_SIZE,
 };
 

src/insets/InsetPreview.cpp

@@ -0,0 +1,164 @@
+/**
+ * \file InsetPreview.cpp
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Vincent van Ravesteijn
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+#include "config.h"
+
+#include "InsetPreview.h"
+
+#include "Buffer.h"
+#include "BufferParams.h"
+#include "BufferView.h"
+#include "Cursor.h"
+#include "Lexer.h"
+#include "LyXRC.h"
+#include "MetricsInfo.h"
+#include "OutputParams.h"
+
+#include "frontends/Painter.h"
+
+#include "graphics/PreviewImage.h"
+
+#include <sstream>
+
+using namespace std;
+
+namespace lyx {
+
+
+InsetPreview::InsetPreview(Buffer * buf) 
+	: InsetText(buf),
+	  preview_(new RenderPreview(this)), use_preview_(true)
+{
+	setAutoBreakRows(true);
+	setDrawFrame(true);
+	setFrameColor(Color_previewframe);
+}
+
+
+InsetPreview::~InsetPreview() 
+{}
+
+
+InsetPreview::InsetPreview(InsetPreview const & other)
+	: InsetText(other)
+{
+	preview_.reset(new RenderPreview(*other.preview_, this));
+}
+
+
+void InsetPreview::write(ostream & os) const
+{
+	os << "Preview" << "\n";
+	text().write(os);
+}
+
+
+void InsetPreview::addPreview(DocIterator const & inset_pos,
+	graphics::PreviewLoader & ploader) const
+{
+	preparePreview(inset_pos);
+}
+
+
+void InsetPreview::preparePreview(DocIterator const & pos) const  
+{
+	odocstringstream str;  
+	OutputParams runparams(&pos.buffer()->params().encoding());
+	latex(str, runparams);
+	docstring const snippet = str.str();
+	preview_->addPreview(snippet, *pos.buffer());  
+}
+
+
+bool InsetPreview::previewState(BufferView * bv) const
+{
+	if (!editing(bv) && RenderPreview::status() == LyXRC::PREVIEW_ON) {
+		graphics::PreviewImage const * pimage =
+			preview_->getPreviewImage(bv->buffer());
+		return pimage && pimage->image();
+	}
+	return false;
+}
+
+
+void InsetPreview::reloadPreview(DocIterator const & pos) const
+{
+	preparePreview(pos);
+	preview_->startLoading(*pos.buffer());
+}
+
+
+void InsetPreview::draw(PainterInfo & pi, int x, int y) const
+{
+	use_preview_ = previewState(pi.base.bv);
+
+	if (use_preview_) {
+		// one pixel gap in front
+		preview_->draw(pi, x + 1 + TEXT_TO_INSET_OFFSET, y);
+		setPosCache(pi, x, y);
+		return;
+	}
+	InsetText::draw(pi, x, y);
+}
+
+
+void InsetPreview::edit(Cursor & cur, bool front, EntryDirection entry_from)
+{
+	cur.push(*this);
+	InsetText::edit(cur, front, entry_from);
+}
+
+
+Inset * InsetPreview::editXY(Cursor & cur, int x, int y)
+{
+	if (use_preview_) {
+		edit(cur, true, ENTRY_DIRECTION_IGNORE);
+		return this;
+	}
+	cur.push(*this);
+	return InsetText::editXY(cur, x, y);
+}
+
+
+void InsetPreview::metrics(MetricsInfo & mi, Dimension & dim) const
+{
+	if (previewState(mi.base.bv)) {
+		preview_->metrics(mi, dim);
+		mi.base.textwidth += 2 * TEXT_TO_INSET_OFFSET;
+		
+		dim.wid = max(dim.wid, 4);
+		dim.asc = max(dim.asc, 4);
+		
+		dim.asc += TEXT_TO_INSET_OFFSET;
+		dim.des += TEXT_TO_INSET_OFFSET;
+		dim.wid += TEXT_TO_INSET_OFFSET;
+		dim_ = dim;
+		dim.wid += TEXT_TO_INSET_OFFSET;
+		// insert a one pixel gap
+		dim.wid += 1;
+		// Cache the inset dimension.
+		setDimCache(mi, dim);
+		Dimension dim_dummy;
+		MetricsInfo mi_dummy = mi;
+		InsetText::metrics(mi_dummy, dim_dummy);
+		return;
+	}
+	InsetText::metrics(mi, dim);
+}
+
+
+bool InsetPreview::notifyCursorLeaves(Cursor const & old, Cursor & cur)
+{
+	reloadPreview(old);
+	cur.updateFlags(Update::Force);
+	return InsetText::notifyCursorLeaves(old, cur);
+}
+
+
+} // namespace lyx

src/insets/InsetPreview.h

@@ -0,0 +1,92 @@
+// -*- C++ -*-
+/**
+ * \file InsetPreview.h
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Vincent van Ravesteijn
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#ifndef INSETPREVIEW_H
+#define INSETPREVIEW_H
+
+#include "InsetText.h"
+
+#include "Dimension.h"
+#include "RenderPreview.h"
+
+#include "graphics/PreviewLoader.h"
+
+#include <boost/scoped_ptr.hpp>
+
+namespace lyx {
+
+/// An inset with an instant preview
+class InsetPreview : public InsetText {
+	
+public:
+	///
+	InsetPreview(Buffer *);
+	///
+	~InsetPreview();
+	///
+	InsetPreview(InsetPreview const & other);
+
+	/// \name Methods inherited from Inset class
+	//@{
+	Inset * clone() const { return new InsetPreview(*this); }
+
+	bool neverIndent() const { return true; }
+	
+	InsetCode lyxCode() const { return PREVIEW_CODE; }
+	
+	docstring name() const { return from_ascii("Preview"); }
+	
+	bool descendable(BufferView const & /*bv*/) const { return true; }
+
+	docstring contextMenu(BufferView const & bv, int x, int y) const
+		{ return from_ascii("context-preview"); }
+
+	void metrics(MetricsInfo & mi, Dimension & dim) const;
+
+	Inset * editXY(Cursor & cur, int x, int y);
+
+	void draw(PainterInfo & pi, int x, int y) const;
+
+	void addPreview(DocIterator const & inset_pos,
+		graphics::PreviewLoader & ploader) const;
+
+	bool notifyCursorLeaves(Cursor const & old, Cursor & cur);
+
+	void write(std::ostream & os) const;
+
+	void edit(Cursor & cur, bool front, EntryDirection entry_from);
+	//@}
+	
+protected:
+	/// Retrieves the preview state. Returns true if preview
+	/// is enabled and the preview image is availabled.
+	bool previewState(BufferView * bv) const;
+	/// Recreates the preview if preview is enabled.
+	void reloadPreview(DocIterator const & pos) const;
+	/// Prepare the preview if preview is enabled.
+	void preparePreview(DocIterator const & pos) const;
+
+	///
+	boost::scoped_ptr<RenderPreview> preview_;
+	///
+	mutable bool use_preview_;
+
+private:
+	///
+	mutable Dimension dim_;
+};
+
+
+} // namespace lyx
+
+
+#endif
+

src/insets/InsetTabular.cpp

@@ -4288,6 +4288,7 @@ bool InsetTabular::getStatus(Cursor & cur, FuncRequest const & cmd,
 	case LFUN_BRANCH_INSERT:
 	case LFUN_PHANTOM_INSERT:
 	case LFUN_WRAP_INSERT:
+	case LFUN_PREVIEW_INSERT:
 	case LFUN_ERT_INSERT: {
 		if (cur.selIsMultiCell()) {
 			status.setEnabled(false);