Edwin's updateParagraph patch.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4837 a592a061-630c-0410-9148-cb99ea01b6c8

src/frontends/ChangeLog

@@ -1,3 +1,7 @@
+2002-08-02  Edwin Leuven <leuven@fee.uva.nl>
+
+	* Dialogs.[Ch] (updateParagraph): converted back to a signal again.
+
 2002-08-02  Angus Leeming  <leeming@lyx.org>
 
 	* LyXView.[Ch] (view): now returns shared_ptr<BufferView> const &

src/frontends/Dialogs.C

@@ -187,13 +187,6 @@ void Dialogs::showParagraph()
 	gui_ShowParagraph(*dialogs_lyxview, *this);
 }
 
-void Dialogs::updateParagraph()
-{
-#if 0
-	gui_UpdateParagraph(*dialogs_lyxview, *this);
-#endif
-}
-
 
 void Dialogs::showPreamble()
 {

src/frontends/Dialogs.h

@@ -143,7 +143,7 @@ public:
 	///
 	void showParagraph();
 	///
-	void updateParagraph();
+	boost::signal0<void>  updateParagraph;
 	///
 	void showPreamble();
 	///

src/frontends/controllers/ChangeLog

@@ -1,3 +1,8 @@
+2002-08-02  Edwin Leuven <leuven@fee.uva.nl>
+
+	* ControlParagraph.[Ch] (changedParagraph): new method invoked when
+	the Dialogs::updateParagraph signal is emitted.
+
 2002-08-02  Angus Leeming  <leeming@lyx.org>
 
 	* ControlCharacter.C (apply):

src/frontends/controllers/ControlParagraph.C

@@ -14,6 +14,7 @@
 #endif
 
 #include "ControlParagraph.h"
+#include "ButtonControllerBase.h"
 #include "ViewBase.h"
 #include "ParagraphParameters.h"
 #include "Liason.h"
@@ -23,13 +24,19 @@
 #include "buffer.h"
 #include "lyxtext.h"
 #include "support/LAssert.h"
+#include "Dialogs.h"
+#include <boost/bind.hpp>
 
 using Liason::setMinibuffer;
 
 
 ControlParagraph::ControlParagraph(LyXView & lv, Dialogs & d)
 	: ControlDialogBD(lv, d), pp_(0), ininset_(false)
-{}
+{
+     d_.updateParagraph.connect(
+	     boost::bind(&ControlParagraph::changedParagraph, this));
+
+}
 
 
 ControlParagraph::~ControlParagraph()
@@ -112,3 +119,18 @@ void ControlParagraph::setParams()
 	/// is paragraph in inset
 	ininset_ = par_->inInset();
 }
+
+void ControlParagraph::changedParagraph()
+{
+	/// get paragraph
+	Paragraph const * p = lv_.view()->getLyXText()->cursor.par();
+
+	if (p == 0) // this is wrong as we don't set par_ here! /* || p == par_) */
+		return;
+
+	// For now, don't bother checking if the params are different.
+	// Will the underlying paragraph accept our changes?
+	Inset * const inset = p->inInset();
+	bool const accept = !(inset && inset->forceDefaultParagraphs(inset));
+	bc().valid(accept);
+}

src/frontends/controllers/ControlParagraph.h

@@ -38,6 +38,8 @@ public:
 	bool inInset() const;
 	///
 	LyXAlignment alignPossible() const;
+	///
+	void changedParagraph();
 
 private:
 	/// Get changed parameters and Dispatch them to the kernel.