X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FCursorSlice.cpp;h=c4b1c72f80d803868a01b39e226e66cf1cba4841;hb=e0fe63f31cac1f4e9936d7ba8e2d93f25117adb0;hp=09a9ca86e3bcbed78018c1e874e2b3b8ba84be56;hpb=76dec26fec47df5b828973554b85dc91f3b564d1;p=lyx.git

diff --git a/src/CursorSlice.cpp b/src/CursorSlice.cpp
index 09a9ca86e3..c4b1c72f80 100644
--- a/src/CursorSlice.cpp
+++ b/src/CursorSlice.cpp
@@ -3,10 +3,10 @@
  * This file is part of LyX, the document processor.
  * Licence details can be found in the file COPYING.
  *
- * \author Lars Gullik Bjønnes
+ * \author Lars Gullik Bjønnes
  * \author Matthias Ettrich
- * \author André Pönitz
- * \author Jürgen Vigna
+ * \author André Pönitz
+ * \author Jürgen Vigna
  *
  * Full author contact details are available in file CREDITS.
  */
@@ -14,19 +14,24 @@
 #include <config.h>
 
 #include "CursorSlice.h"
-#include "debug.h"
-#include "LyXText.h"
+
+#include "Text.h"
 #include "Paragraph.h"
 
+#include "support/debug.h"
+
+#include "insets/Inset.h"
+
 #include "mathed/InsetMath.h"
 #include "mathed/MathData.h"
 
-#include <boost/assert.hpp>
+#include "support/lassert.h"
 
+#include <ostream>
 
-namespace lyx {
+using namespace std;
 
-using std::endl;
+namespace lyx {
 
 
 CursorSlice::CursorSlice()
@@ -34,10 +39,10 @@ CursorSlice::CursorSlice()
 {}
 
 
-CursorSlice::CursorSlice(InsetBase & p)
+CursorSlice::CursorSlice(Inset & p)
 	: inset_(&p), idx_(0), pit_(0), pos_(0)
 {
-	BOOST_ASSERT(inset_);
+	LASSERT(inset_, /**/);
 }
 
 
@@ -47,69 +52,146 @@ MathData & CursorSlice::cell() const
 }
 
 
-Paragraph & CursorSlice::paragraph()
+Paragraph & CursorSlice::paragraph() const
 {
 	return text()->getPar(pit_);
 }
 
 
-Paragraph const & CursorSlice::paragraph() const
+pos_type CursorSlice::lastpos() const
 {
-	return text()->getPar(pit_);
+	LASSERT(inset_, /**/);
+	return inset_->asInsetMath() ? cell().size() 
+		: (text()->empty() ? 0 : paragraph().size());
 }
 
 
-pos_type CursorSlice::lastpos() const
+pit_type CursorSlice::lastpit() const
 {
-	BOOST_ASSERT(inset_);
-	return inset_->asInsetMath() ? cell().size() : paragraph().size();
+	if (inset_->inMathed())
+		return 0;
+	return text()->paragraphs().size() - 1;
 }
 
 
 CursorSlice::row_type CursorSlice::row() const
 {
-	BOOST_ASSERT(asInsetMath());
+	LASSERT(asInsetMath(), /**/);
 	return asInsetMath()->row(idx_);
 }
 
 
 CursorSlice::col_type CursorSlice::col() const
 {
-	BOOST_ASSERT(asInsetMath());
+	LASSERT(asInsetMath(), /**/);
 	return asInsetMath()->col(idx_);
 }
 
 
+void CursorSlice::forwardPos()
+{
+	//  move on one position if possible
+	if (pos_ < lastpos()) {
+		//lyxerr << "... next pos" << endl;
+		++pos_;
+		return;
+	}
+
+	// otherwise move on one paragraph if possible
+	if (pit_ < lastpit()) {
+		//lyxerr << "... next par" << endl;
+		++pit_;
+		pos_ = 0;
+		return;
+	}
+
+	// otherwise move on one cell
+	//lyxerr << "... next idx" << endl;
+
+	LASSERT(idx_ < nargs(), /**/);
+
+	++idx_;
+	pit_ = 0;
+	pos_ = 0;
+}
+
+
+void CursorSlice::forwardIdx()
+{
+	LASSERT(idx_ < nargs(), /**/);
+
+	++idx_;
+	pit_ = 0;
+	pos_ = 0;
+}
+
+
+void CursorSlice::backwardPos()
+{
+	if (pos_ != 0) {
+		--pos_;
+		return;
+	}
+
+	if (pit_ != 0) {
+		--pit_;
+		pos_ = lastpos();
+		return;
+	}
+
+	if (idx_ != 0) {
+		--idx_;
+		pit_ = lastpit();
+		pos_ = lastpos();
+		return;
+	}
+
+	LASSERT(false, /**/);
+}
+
+
+bool CursorSlice::at_end() const 
+{
+	return idx_ == lastidx() && pit_ == lastpit() && pos_ == lastpos();
+}
+
+
+bool CursorSlice::at_begin() const
+{
+	return idx_ == 0 && pit_ == 0 && pos_ == 0;
+}
+
+
 bool operator==(CursorSlice const & p, CursorSlice const & q)
 {
 	return p.inset_ == q.inset_
-	       && p.idx() == q.idx()
-	       && p.pit() == q.pit()
-	       && p.pos() == q.pos();
+	       && p.idx_ == q.idx_
+	       && p.pit_ == q.pit_
+	       && p.pos_ == q.pos_;
 }
 
 
 bool operator!=(CursorSlice const & p, CursorSlice const & q)
 {
 	return p.inset_ != q.inset_
-	       || p.idx() != q.idx()
-	       || p.pit() != q.pit()
-	       || p.pos() != q.pos();
+	       || p.idx_ != q.idx_
+	       || p.pit_ != q.pit_
+	       || p.pos_ != q.pos_;
 }
 
 
 bool operator<(CursorSlice const & p, CursorSlice const & q)
 {
-	if (&p.inset() != &q.inset()) {
-		lyxerr << "can't compare cursor and anchor in different insets\n"
-		       << "p: " << p << '\n' << "q: " << q << endl;
-		BOOST_ASSERT(false);
+	if (p.inset_ != q.inset_) {
+		LYXERR0("can't compare cursor and anchor in different insets\n"
+		       << "p: " << p << '\n' << "q: " << q);
+		LASSERT(false, /**/);
 	}
-	if (p.idx() != q.idx())
-		return p.idx() < q.idx();
-	if (p.pit() != q.pit())
-		return p.pit() < q.pit();
-	return p.pos() < q.pos();
+	if (p.idx_ != q.idx_)
+		return p.idx_ < q.idx_;
+	if (p.pit_ != q.pit_)
+		return p.pit_ < q.pit_;
+	return p.pos_ < q.pos_;
 }
 
 
@@ -125,16 +207,16 @@ bool operator<=(CursorSlice const & p, CursorSlice const & q)
 }
 
 
-std::ostream & operator<<(std::ostream & os, CursorSlice const & item)
+ostream & operator<<(ostream & os, CursorSlice const & item)
 {
 	return os
-	   << "inset: " << &item.inset()
+	   << "inset: " << (void *)item.inset_
 //	   << " text: " << item.text()
-	   << " idx: " << item.idx()
-	   << " par: " << item.pit()
-	   << " pos: " << item.pos()
-//	   << " x: " << item.inset().x()
-//	   << " y: " << item.inset().y()
+	   << " idx: " << item.idx_
+	   << " par: " << item.pit_
+	   << " pos: " << item.pos_
+//	   << " x: " << item.inset_->x()
+//	   << " y: " << item.inset_->y()
 ;
 }