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Fix broken changes of wheel mouse. Sorry !

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@5460 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
John Levon 2002-10-21 15:29:41 +00:00
parent e372738266
commit e0660589c4
1 changed files with 4 additions and 3 deletions
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7
src/BufferView_pimpl.C
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@ -393,11 +393,12 @@ void BufferView::Pimpl::scroll(int lines)
LyXText const * t = bv_->text;
int const line_height = t->defaultHeight();
int const disp = lines * line_height;
// The new absolute coordinate
int new_first_y = t->first_y + lines * line_height;
// Restrict to a valid value
int new_first_y = std::min(t->height - 4 * line_height, disp);
new_first_y = std::max(0, disp);
new_first_y = std::min(t->height - 4 * line_height, new_first_y);
new_first_y = std::max(0, new_first_y);
scrollDocView(new_first_y);