]> git.lyx.org Git - lyx.git/blobdiff - src/BufferView.cpp
Revert previous commit, which committed too much.
[lyx.git] / src / BufferView.cpp
index 8d0539428aa0a21b8243032e0d117b26b5476743..9ec1e7d4b3443e5b5823acf8457ff61012a24725 100644 (file)
@@ -669,7 +669,10 @@ void BufferView::setCursorFromScrollbar()
        // FIXME: Care about the d->cursor_ flags to redraw if needed
        Cursor old = d->cursor_;
        mouseSetCursor(cur);
-       bool badcursor = notifyCursorLeavesOrEnters(old, d->cursor_);
+       // the DEPM call in mouseSetCursor() might have destroyed the
+       // paragraph the cursor is in.
+       bool badcursor = old.fixIfBroken();
+       badcursor |= notifyCursorLeavesOrEnters(old, d->cursor_);
        if (badcursor)
                d->cursor_.fixIfBroken();
 }
@@ -700,7 +703,6 @@ CursorStatus BufferView::cursorStatus(DocIterator const & dit) const
 
 void BufferView::bookmarkEditPosition()
 {
-       d->cursor_.markEditPosition();
        // Don't eat cpu time for each keystroke
        if (d->cursor_.paragraph().id() == d->bookmark_edit_position_)
                return;
@@ -1457,6 +1459,7 @@ void BufferView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
                buffer_.text().cursorBottom(cur);
                // accept everything in a single step to support atomic undo
                buffer_.text().acceptOrRejectChanges(cur, Text::ACCEPT);
+               cur.resetAnchor();
                // FIXME: Move this LFUN to Buffer so that we don't have to do this:
                dr.screenUpdate(Update::Force | Update::FitCursor);
                dr.forceBufferUpdate();
@@ -1470,6 +1473,7 @@ void BufferView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
                // reject everything in a single step to support atomic undo
                // Note: reject does not work recursively; the user may have to repeat the operation
                buffer_.text().acceptOrRejectChanges(cur, Text::REJECT);
+               cur.resetAnchor();
                // FIXME: Move this LFUN to Buffer so that we don't have to do this:
                dr.screenUpdate(Update::Force | Update::FitCursor);
                dr.forceBufferUpdate();
@@ -1682,6 +1686,7 @@ void BufferView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
 
                d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_,
                        true, act == LFUN_SCREEN_UP); 
+               cur.resetAnchor();
                //FIXME: what to do with cur.x_target()?
                bool update = in_texted && cur.bv().checkDepm(cur, old);
                cur.finishUndo();
@@ -1752,7 +1757,7 @@ void BufferView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
                        Inset * ins = cur.nextInset();
                        if (!ins)
                                break;
-                       docstring insname = ins->name();
+                       docstring insname = ins->layoutName();
                        while (!insname.empty()) {
                                if (insname == name || name == from_utf8("*")) {
                                        cur.recordUndo();
@@ -2084,6 +2089,11 @@ void BufferView::mouseEventDispatch(FuncRequest const & cmd0)
        // Do we have a selection?
        theSelection().haveSelection(cursor().selection());
 
+       if (cur.needBufferUpdate()) {
+               cur.clearBufferUpdate();
+               buffer().updateBuffer();
+       }
+
        // If the command has been dispatched,
        if (cur.result().dispatched() || cur.result().screenUpdate())
                processUpdateFlags(cur.result().screenUpdate());
@@ -2181,16 +2191,42 @@ int BufferView::scrollUp(int offset)
 
 void BufferView::setCursorFromRow(int row)
 {
-       int tmpid = -1;
-       int tmppos = -1;
+       int tmpid;
+       int tmppos;
+       pit_type newpit = 0;
+       pos_type newpos = 0;
 
        buffer_.texrow().getIdFromRow(row, tmpid, tmppos);
 
+       bool posvalid = (tmpid != -1);
+       if (posvalid) {
+               // we need to make sure that the row and position
+               // we got back are valid, because the buffer may well
+               // have changed since we last generated the LaTeX.
+               DocIterator const dit = buffer_.getParFromID(tmpid);
+               if (dit == doc_iterator_end(&buffer_))
+                       posvalid = false;
+               else {
+                       newpit = dit.pit();
+                       // now have to check pos.
+                       newpos = tmppos;
+                       Paragraph const & par = buffer_.text().getPar(newpit);
+                       if (newpos > par.size()) {
+                               LYXERR0("Requested position no longer valid.");
+                               newpos = par.size() - 1;
+                       }
+               }
+       }
+       if (!posvalid) {
+               frontend::Alert::error(_("Inverse Search Failed"),
+                       _("Invalid position requested by inverse search.\n"
+                   "You need to update the viewed document."));
+               return;
+       }
        d->cursor_.reset();
-       if (tmpid == -1)
-               buffer_.text().setCursor(d->cursor_, 0, 0);
-       else
-               buffer_.text().setCursor(d->cursor_, buffer_.getParFromID(tmpid).pit(), tmppos);
+       buffer_.text().setCursor(d->cursor_, newpit, newpos);
+       d->cursor_.setSelection(false);
+       d->cursor_.resetAnchor();
        recenter();
 }
 
@@ -2244,6 +2280,7 @@ TextMetrics const & BufferView::textMetrics(Text const * t) const
 
 TextMetrics & BufferView::textMetrics(Text const * t)
 {
+       LASSERT(t, /**/);
        TextMetricsCache::iterator tmc_it  = d->text_metrics_.find(t);
        if (tmc_it == d->text_metrics_.end()) {
                tmc_it = d->text_metrics_.insert(
@@ -2275,6 +2312,11 @@ void BufferView::setCursor(DocIterator const & dit)
 
        d->cursor_.setCursor(dit);
        d->cursor_.setSelection(false);
+       // FIXME
+       // It seems on general grounds as if this is probably needed, but
+       // it is not yet clear.
+       // See bug #7394 and r38388.
+       // d->cursor.resetAnchor();
 }
 
 
@@ -2314,12 +2356,13 @@ bool BufferView::mouseSetCursor(Cursor & cur, bool select)
        d->cursor_.macroModeClose();
 
        // Has the cursor just left the inset?
-       bool leftinset = (&d->cursor_.inset() != &cur.inset());
+       bool const leftinset = (&d->cursor_.inset() != &cur.inset());
        if (leftinset)
                d->cursor_.fixIfBroken();
 
        // FIXME: shift-mouse selection doesn't work well across insets.
-       bool do_selection = select && &d->cursor_.normalAnchor().inset() == &cur.inset();
+       bool const do_selection = 
+                       select && &d->cursor_.normalAnchor().inset() == &cur.inset();
 
        // do the dEPM magic if needed
        // FIXME: (1) move this to InsetText::notifyCursorLeaves?
@@ -2363,6 +2406,42 @@ void BufferView::putSelectionAt(DocIterator const & cur,
 }
 
 
+bool BufferView::selectIfEmpty(DocIterator & cur)
+{
+       if (!cur.paragraph().empty())
+               return false;
+
+       pit_type const beg_pit = cur.pit();
+       if (beg_pit > 0) {
+               // The paragraph associated to this item isn't
+               // the first one, so it can be selected
+               cur.backwardPos();
+       } else {
+               // We have to resort to select the space between the
+               // end of this item and the begin of the next one
+               cur.forwardPos();
+       }
+       if (cur.empty()) {
+               // If it is the only item in the document,
+               // nothing can be selected
+               return false;
+       }
+       pit_type const end_pit = cur.pit();
+       pos_type const end_pos = cur.pos();
+       d->cursor_.clearSelection();
+       d->cursor_.reset();
+       d->cursor_.setCursor(cur);
+       d->cursor_.pit() = beg_pit;
+       d->cursor_.pos() = 0;
+       d->cursor_.setSelection(false);
+       d->cursor_.resetAnchor();
+       d->cursor_.pit() = end_pit;
+       d->cursor_.pos() = end_pos;
+       d->cursor_.setSelection();
+       return true;
+}
+
+
 Cursor & BufferView::cursor()
 {
        return d->cursor_;