From 43637efd25e8dcf90d5bd53e133dfdac31b837f7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20P=C3=B6nitz?= <poenitz@gmx.net>
Date: Fri, 15 Aug 2003 13:12:24 +0000
Subject: [PATCH] better fix for anchorrow problem

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7555 a592a061-630c-0410-9148-cb99ea01b6c8
---
 src/frontends/qt2/qscreen.C |  3 ++-
 src/lyxtext.h               |  9 ++-------
 src/text.C                  | 33 +++------------------------------
 src/text2.C                 | 32 ++++++++------------------------
 4 files changed, 15 insertions(+), 62 deletions(-)

diff --git a/src/frontends/qt2/qscreen.C b/src/frontends/qt2/qscreen.C
index 02e4e66db6..6afb4444ba 100644
--- a/src/frontends/qt2/qscreen.C
+++ b/src/frontends/qt2/qscreen.C
@@ -76,7 +76,8 @@ void QScreen::draw(LyXText * text, BufferView * bv, unsigned int y)
 
 	text->top_y(y);
 
-	drawFromTo(text, bv, 0, owner_.height(), 0, 0);
+	// not needed in the xforms frontend anymore
+	//drawFromTo(text, bv, 0, owner_.height(), 0, 0);
 	repaint();
 
 	owner_.getPainter().end();
diff --git a/src/lyxtext.h b/src/lyxtext.h
index 59140c7f89..b0374573ed 100644
--- a/src/lyxtext.h
+++ b/src/lyxtext.h
@@ -66,13 +66,8 @@ public:
 	/// our buffer's default layout font
 	LyXFont defaultfont_;
 private:
-	/** the 'anchor' row: the position of this row remains constant
-	 *  with respect to the top of the screen
-	 */
-	RowList::iterator anchor_row_;
-	/** the pixel offset with respect to this row of top_y
-	 */
-	int anchor_row_offset_;
+	/// offset of dran area to document start.
+	int anchor_y_;
 public:
 	/// update all cached row positions
 	void updateRowPositions();
diff --git a/src/text.C b/src/text.C
index ebbe4e107d..1cd7375d0d 100644
--- a/src/text.C
+++ b/src/text.C
@@ -97,10 +97,7 @@ void LyXText::updateRowPositions()
 
 int LyXText::top_y() const
 {
-	if (anchor_row_ == endRow())
-		return 0;
-
-	return anchor_row_->y() + anchor_row_offset_;
+	return anchor_y_;
 }
 
 
@@ -109,32 +106,8 @@ void LyXText::top_y(int newy)
 	if (ownerParagraphs().begin()->rows.empty())
 		return;
 
-	if (isInInset()) {
-		anchor_row_ = firstRow();
-		anchor_row_offset_ = newy;
-		return;
-	}
-
-	lyxerr[Debug::GUI] << "setting top y = " << newy << endl;
-
-	int y = newy;
-	ParagraphList::iterator dummypit;
-	anchor_row_ = getRowNearY(y, dummypit);
-	anchor_row_offset_ = newy - y;
-	lyxerr[Debug::GUI] << "changing reference to row: " << &*anchor_row_
-	       << " offset: " << anchor_row_offset_ << endl;
-}
-
-
-void LyXText::anchor_row(RowList::iterator rit)
-{
-	int old_y = top_y();
-	anchor_row_offset_ = 0;
-	anchor_row_ = rit;
-	anchor_row_offset_ = old_y - top_y();
-	lyxerr[Debug::GUI] << "anchor_row(): changing reference to row: "
-			   << &*anchor_row_ << " offset: "
-			   << anchor_row_offset_ << endl;
+	anchor_y_ = newy;
+	lyxerr[Debug::GUI] << "changing reference to offset: " << anchor_y_ << endl;
 }
 
 
diff --git a/src/text2.C b/src/text2.C
index b86338ad45..74219602a0 100644
--- a/src/text2.C
+++ b/src/text2.C
@@ -60,19 +60,15 @@ using lyx::pos_type;
 
 
 LyXText::LyXText(BufferView * bv)
-	: height(0), width(0), anchor_row_offset_(0),
+	: height(0), width(0), anchor_y_(0),
 	  inset_owner(0), the_locking_inset(0), bv_owner(bv)
-{
-	anchor_row_ = endRow();
-}
+{}
 
 
 LyXText::LyXText(BufferView * bv, InsetText * inset)
-	: height(0), width(0), anchor_row_offset_(0),
+	: height(0), width(0), anchor_y_(0),
 	  inset_owner(inset), the_locking_inset(0), bv_owner(bv)
-{
-	anchor_row_ = endRow();
-}
+{}
 
 
 void LyXText::init(BufferView * bview)
@@ -87,8 +83,7 @@ void LyXText::init(BufferView * bview)
 	width = 0;
 	height = 0;
 
-	anchor_row_ = endRow();
-	anchor_row_offset_ = 0;
+	anchor_y_ = 0;
 
 	current_font = getFont(beg, 0);
 
@@ -559,12 +554,9 @@ void LyXText::redoParagraph(ParagraphList::iterator pit)
 	RowList::iterator end = pit->rows.end();
 
 	// remove rows of paragraph
-	int anchor_cnt = -1;
-	for (int i = 0; rit != end; ++rit, ++i) {
-		if (rit == anchor_row_)
-			anchor_cnt = i;
+	for (int i = 0; rit != end; ++rit, ++i)
 		height -= rit->height();
-	}
+
 	pit->rows.clear();
 
 	// rebreak the paragraph
@@ -589,13 +581,6 @@ void LyXText::redoParagraph(ParagraphList::iterator pit)
 		setHeightOfRow(pit, tmprow);
 	}
 
-	if (anchor_cnt == -1) {
-		if (anchor_cnt >= pit->rows.size())
-			anchor_cnt = pit->rows.size();
-		anchor_row_ = pit->rows.begin();
-		advance(anchor_row_, anchor_cnt);
-	}
-
 	//lyxerr << "redoParagraph: " << pit->rows.size() << " rows\n";
 }
 
@@ -617,8 +602,7 @@ void LyXText::metrics(MetricsInfo & mi, Dimension & dim)
 	width = 0;
 	height = 0;
 
-	anchor_row_ = endRow();
-	anchor_row_offset_ = 0;
+	//anchor_y_ = 0;
 
 	ParagraphList::iterator pit = ownerParagraphs().begin();
 	ParagraphList::iterator end = ownerParagraphs().end();