X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2FCursorSlice.cpp;h=573ca9d4fe71b653bd2b3e1e02401c11171891b8;hb=28be7d552f62cc02fa86d7f79201d089bfb2d7b5;hp=0a600ab4bef0c2a77a8d929905df2c97accf68f6;hpb=1b1f8dd235ba8e168348cd23c824063f2595a0c5;p=lyx.git

diff --git a/src/CursorSlice.cpp b/src/CursorSlice.cpp
index 0a600ab4be..573ca9d4fe 100644
--- a/src/CursorSlice.cpp
+++ b/src/CursorSlice.cpp
@@ -44,7 +44,7 @@ CursorSlice::CursorSlice()
 CursorSlice::CursorSlice(Inset & p)
 	: inset_(&p), idx_(0), pit_(0), pos_(0)
 {
-	LBUFERR(inset_, _("Invalid initialization of CursorSlice!"));
+	LBUFERR(inset_);
 }
 
 
@@ -62,7 +62,7 @@ Paragraph & CursorSlice::paragraph() const
 
 pos_type CursorSlice::lastpos() const
 {
-	LBUFERR(inset_, _("Cursor slice not properly initialized!"));
+	LBUFERR(inset_);
 	InsetMath const * math = inset_->asInsetMath();
 	bool paramless_macro = math && math->asMacro() && !math->asMacro()->nargs();
 	return math ? (paramless_macro ? 0 : cell().size()) 
@@ -80,19 +80,37 @@ pit_type CursorSlice::lastpit() const
 
 CursorSlice::row_type CursorSlice::row() const
 {
-	// LASSERT: This should only ever be called from an InsetMath.
-	// Should we crash in release mode, though, or try to continue?
-	LASSERT(asInsetMath(), /**/);
-	return asInsetMath()->row(idx_);
+	LASSERT(inset_, return 0);
+	return inset_->row(idx_);
 }
 
 
 CursorSlice::col_type CursorSlice::col() const
 {
-	// LASSERT: This should only ever be called from an InsetMath.
-	// Should we crash in release mode, though, or try to continue?
-	LASSERT(asInsetMath(), /**/);
-	return asInsetMath()->col(idx_);
+	LASSERT(inset_, return 0);
+	return inset_->col(idx_);
+}
+
+
+void CursorSlice::setPitPos(pit_type pit, pos_type pos)
+{
+	LASSERT(pit != int(text()->paragraphs().size()), return);
+	pit_ = pit;
+	pos_ = pos;
+
+	// Now some strict checking. None of these should happen, but
+	// we're scaredy-cats
+	if (pos < 0) {
+		LYXERR0("Don't like -1!");
+		LATTEST(false);
+	}
+
+	if (pos > paragraph().size()) {
+		LYXERR0("Don't like 1, pos: " << pos
+				<< " size: " << paragraph().size()
+		       << " par: " << pit);
+		LATTEST(false);
+	}
 }
 
 
@@ -158,15 +176,27 @@ void CursorSlice::backwardPos()
 }
 
 
-bool CursorSlice::at_end() const 
+bool CursorSlice::at_cell_end() const
+{
+	return pit_ == lastpit() && pos_ == lastpos();
+}
+
+
+bool CursorSlice::at_cell_begin() const
+{
+	return pit_ == 0 && pos_ == 0;
+}
+
+
+bool CursorSlice::at_end() const
 {
-	return idx_ == lastidx() && pit_ == lastpit() && pos_ == lastpos();
+	return idx_ == lastidx() && at_cell_end();
 }
 
 
 bool CursorSlice::at_begin() const
 {
-	return idx_ == 0 && pit_ == 0 && pos_ == 0;
+	return idx_ == 0 && at_cell_begin();
 }