Replace Buffer' changed() and closing() signals with a WorkAreaManager before Andre erase everything :-)

The resulting source code is not much bigger actually.



git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20654 a592a061-630c-0410-9148-cb99ea01b6c8

src/Buffer.cpp

@@ -68,6 +68,7 @@
 #include "mathed/MathSupport.h"
 
 #include "frontends/alert.h"
+#include "frontends/WorkAreaManager.h"
 
 #include "graphics/Previews.h"
 
@@ -206,13 +207,17 @@ public:
 	/// modified. (Used to properly enable 'File->Revert to saved', bug 4114).
 	time_t timestamp_;
 	unsigned long checksum_;
+
+	///
+	frontend::WorkAreaManager * wa_;
 };
 
 
 Buffer::Impl::Impl(Buffer & parent, FileName const & file, bool readonly_)
 	: lyx_clean(true), bak_clean(true), unnamed(false), read_only(readonly_),
 	  filename(file), file_fully_loaded(false), inset(params),
-	  toc_backend(&parent), embedded_files(&parent), timestamp_(0), checksum_(0)
+	  toc_backend(&parent), embedded_files(&parent), timestamp_(0),
+	  checksum_(0), wa_(0)
 {
 	inset.setAutoBreakRows(true);
 	lyxvc.buffer(&parent);
@@ -221,6 +226,9 @@ Buffer::Impl::Impl(Buffer & parent, FileName const & file, bool readonly_)
 	// FIXME: And now do something if temppath == string(), because we
 	// assume from now on that temppath points to a valid temp dir.
 	// See http://www.mail-archive.com/lyx-devel@lists.lyx.org/msg67406.html
+
+	if (use_gui)
+		wa_ = new frontend::WorkAreaManager;
 }
 
 
@@ -253,10 +261,25 @@ Buffer::~Buffer()
 	// Remove any previewed LaTeX snippets associated with this buffer.
 	graphics::Previews::get().removeLoader(*this);
 
-	closing(this);
+	if (pimpl_->wa_) {
+		pimpl_->wa_->closing();
+		delete pimpl_->wa_;
+	}
 }
 
 
+void Buffer::changed()
+{
+	if (pimpl_->wa_)
+		pimpl_->wa_->changed();
+}
+
+
+frontend::WorkAreaManager * Buffer::workAreaManager() const
+{
+	return pimpl_->wa_;
+}
+
 Text & Buffer::text() const
 {
 	return const_cast<Text &>(pimpl_->inset.text_);

src/Buffer.h

@@ -54,6 +54,9 @@ class TexRow;
 class TocBackend;
 class Undo;
 
+namespace frontend {
+class WorkAreaManager;
+}
 
 /** The buffer object.
  * This is the buffer object. It contains all the informations about
@@ -141,7 +144,11 @@ public:
 	bool hasParWithID(int id) const;
 
 	/// This signal is emitted when the buffer is changed.
-	boost::signal<void()> changed;
+	void changed();
+
+	///
+	frontend::WorkAreaManager * workAreaManager() const;
+
 	/// This signal is emitted when the buffer structure is changed.
 	boost::signal<void()> structureChanged;
 	/// This signal is emitted when an embedded file is changed
@@ -158,8 +165,6 @@ public:
 	boost::signal<void()> updateTitles;
 	/// Reset autosave timers for all users.
 	boost::signal<void()> resetAutosaveTimers;
-	/// This signal is emitting if the buffer is being closed.
-	boost::signal<void(Buffer *)> closing;
 
 
 	/** Save file.

src/buffer_funcs.cpp

@@ -626,8 +626,8 @@ void updateLabels(Buffer const & buf, bool childonly)
 	// FIXME
 	// the embedding signal is emitted with structureChanged signal
 	// this is inaccurate so these two will be separated later.
-	cbuf.embeddedFiles().update();
-	cbuf.embeddingChanged();
+	//cbuf.embeddedFiles().update();
+	//cbuf.embeddingChanged();
 }
 
 

src/frontends/Makefile.am

@@ -35,5 +35,7 @@ liblyxfrontends_la_SOURCES = \
 	Selection.h \
 	WorkArea.cpp \
 	WorkArea.h \
+	WorkAreaManager.cpp \
+	WorkAreaManager.h \
 	key_state.h \
 	mouse_state.h

src/frontends/WorkArea.cpp

@@ -72,23 +72,12 @@ WorkArea::WorkArea(Buffer & buffer, LyXView & lv)
 	timecon = cursor_timeout_.timeout
 		.connect(boost::bind(&WorkArea::toggleCursor, this));
 
-	bufferChangedConnection_ =
-		buffer.changed.connect(
-			boost::bind(&WorkArea::redraw, this));
-
-	bufferClosingConnection_ =
-		buffer.closing.connect(
-		boost::bind(&WorkArea::close, this));
-
 	cursor_timeout_.start();
 }
 
 
 WorkArea::~WorkArea()
 {
-	bufferChangedConnection_.disconnect();
-	bufferClosingConnection_.disconnect();
-
 	delete buffer_view_;
 }
 

src/frontends/WorkArea.h

@@ -19,8 +19,6 @@
 #include "support/Timeout.h"
 #include "support/docstring.h"
 
-#include <boost/signals/trackable.hpp>
-
 #undef CursorShape
 
 namespace lyx {
@@ -52,7 +50,8 @@ enum CursorShape {
  * It works in concert with the BaseScreen class to update the
  * widget view of a document.
  */
-class WorkArea : public boost::signals::trackable {
+class WorkArea
+{
 public:
 	///
 	WorkArea(Buffer & buffer, LyXView & lv);
@@ -100,6 +99,10 @@ public:
 	/// This needs to be public because it is accessed externally by GuiView.
 	void processKeySym(KeySymbol const & key, key_modifier::state state);
 
+	/// close this work area.
+	/// Slot for Buffer::closing signal.
+	void close();
+
 protected:
 	/// cause the display of the given area of the work area
 	virtual void expose(int x, int y, int w, int h) = 0;
@@ -107,9 +110,6 @@ protected:
 	void dispatch(FuncRequest const & cmd0,
 		key_modifier::state = key_modifier::none);
 
-	/// close this work area.
-	/// Slot for Buffer::closing boost signal.
-	void close();
 	///
 	void resizeBufferView();
 	/// hide the visible cursor, if it is visible
@@ -136,11 +136,6 @@ private:
 
 	///
 	Timeout cursor_timeout_;
-
-	/// buffer changed signal connection
-	boost::signals::connection bufferChangedConnection_;
-	/// buffer closing signal connection
-	boost::signals::connection bufferClosingConnection_;
 };
 
 } // namespace frontend

src/frontends/WorkAreaManager.cpp

@@ -0,0 +1,40 @@
+// -*- C++ -*-
+/**
+ * \file WorkAreaManager.cpp
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Abdelrazak Younes
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#include <config.h>
+
+#include "WorkArea.h"
+
+#include "WorkAreaManager.h"
+
+namespace lyx {
+namespace frontend {
+
+void WorkAreaManager::registerWorkArea(WorkArea * wa)
+{
+	work_areas_.push_back(wa);
+}
+
+void WorkAreaManager::changed()
+{
+	for (size_t i = 0; i != work_areas_.size(); ++i)
+		work_areas_[i]->redraw();
+}
+
+void WorkAreaManager::closing()
+{
+	for (size_t i = 0; i != work_areas_.size(); ++i)
+		work_areas_[i]->close();
+}
+
+} // namespace frontend
+} // namespace lyx
+

src/frontends/WorkAreaManager.h

@@ -0,0 +1,43 @@
+// -*- C++ -*-
+/**
+ * \file WorkAreaManager.h
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
+ *
+ * \author Abdelrazak Younes
+ *
+ * Full author contact details are available in file CREDITS.
+ */
+
+#ifndef WORKAREA_MANAGER_H
+#define WORKAREA_MANAGER_H
+
+#include <vector>
+
+namespace lyx {
+namespace frontend {
+
+class WorkArea;
+
+class WorkAreaManager
+{
+public:
+	WorkAreaManager() {}
+
+	///
+	void registerWorkArea(WorkArea * wa);
+
+	///
+	void changed();
+
+	///
+	void closing();
+
+private:
+	std::vector<WorkArea *> work_areas_;
+};
+
+} // namespace frontend
+} // namespace lyx
+
+#endif // BASE_WORKAREA_H

src/frontends/qt4/GuiView.cpp

@@ -27,6 +27,7 @@
 #include "frontends/Dialogs.h"
 #include "frontends/Gui.h"
 #include "frontends/WorkArea.h"
+#include "frontends/WorkAreaManager.h"
 
 #include "support/filetools.h"
 #include "support/convert.h"
@@ -858,6 +859,8 @@ WorkArea * GuiViewBase::addWorkArea(Buffer & buffer)
 		d.stack_widget_->setCurrentWidget(d.tab_widget_);
 	// Hide tabbar if there's only one tab.
 	d.tab_widget_->showBar(d.tab_widget_->count() > 1);
+	///
+	buffer.workAreaManager()->registerWorkArea(wa);
 	return wa;
 }