]> git.lyx.org Git - lyx.git/blobdiff - src/BufferView.cpp
Fix bug #5131: Remember last file active.
[lyx.git] / src / BufferView.cpp
index 06a677c64a94f078591849ba0873487018f228a6..6089756f9bbae041d28cc8322a1b4ff34712a579 100644 (file)
@@ -218,7 +218,7 @@ struct BufferView::Private
        Private(BufferView & bv): wh_(0), cursor_(bv),
                anchor_pit_(0), anchor_ypos_(0),
                inlineCompletionUniqueChars_(0),
-               last_inset_(0), gui_(0)
+               last_inset_(0), bookmark_edit_position_(0), gui_(0)
        {}
 
        ///
@@ -261,6 +261,9 @@ struct BufferView::Private
          */
        Inset * last_inset_;
 
+       // cache for id of the paragraph which was edited the last time
+       int bookmark_edit_position_;
+
        mutable TextMetricsCache text_metrics_;
 
        /// Whom to notify.
@@ -514,7 +517,10 @@ void BufferView::updateScrollbar()
 
        d->scrollbarParameters_.position = 0;
        // The reference is the top position so we remove one page.
-       d->scrollbarParameters_.max -= d->scrollbarParameters_.page_step;
+       if (lyxrc.scroll_below_document)
+               d->scrollbarParameters_.max -= minVisiblePart();
+       else
+               d->scrollbarParameters_.max -= d->scrollbarParameters_.page_step;
 }
 
 
@@ -670,9 +676,19 @@ CursorStatus BufferView::cursorStatus(DocIterator const & dit) const
 }
 
 
+void BufferView::bookmarkEditPosition()
+{
+       // Don't eat cpu time for each keystroke
+       if (d->cursor_.paragraph().id() == d->bookmark_edit_position_)
+               return;
+       saveBookmark(0);
+       d->bookmark_edit_position_ = d->cursor_.paragraph().id();
+}
+
+
 void BufferView::saveBookmark(unsigned int idx)
 {
-       // tenatively save bookmark, id and pos will be used to
+       // tentatively save bookmark, id and pos will be used to
        // acturately locate a bookmark in a 'live' lyx session.
        // pit and pos will be updated with bottom level pit/pos
        // when lyx exits.
@@ -713,7 +729,7 @@ bool BufferView::moveToPosition(pit_type bottom_pit, pos_type bottom_pos,
                        // insets.
                        size_t const n = dit.depth();
                        for (size_t i = 0; i < n; ++i)
-                               if (dit[i].inset().editable() != Inset::HIGHLY_EDITABLE) {
+                               if (!dit[i].inset().editable()) {
                                        dit.resize(i);
                                        break;
                                }
@@ -774,18 +790,37 @@ int BufferView::workWidth() const
 }
 
 
+void BufferView::recenter()
+{
+       showCursor(d->cursor_, true);
+}
+
+
 void BufferView::showCursor()
 {
-       showCursor(d->cursor_);
+       showCursor(d->cursor_, false);
+}
+
+
+void BufferView::showCursor(DocIterator const & dit, bool recenter)
+{
+       if (scrollToCursor(dit, recenter))
+               buffer_.changed();
+}
+
+
+void BufferView::scrollToCursor()
+{
+       scrollToCursor(d->cursor_, false);
 }
 
 
-void BufferView::showCursor(DocIterator const & dit)
+bool BufferView::scrollToCursor(DocIterator const & dit, bool recenter)
 {
        // We are not properly started yet, delay until resizing is
        // done.
        if (height_ == 0)
-               return;
+               return false;
 
        LYXERR(Debug::SCROLLING, "recentering!");
 
@@ -816,16 +851,19 @@ void BufferView::showCursor(DocIterator const & dit)
                Dimension const & row_dim =
                        pm.getRow(cs.pos(), dit.boundary()).dimension();
                int scrolled = 0;
-               if (ypos - row_dim.ascent() < 0)
+               if (recenter)
+                       scrolled = scroll(ypos - height_/2);
+               else if (ypos - row_dim.ascent() < 0)
                        scrolled = scrollUp(- ypos + row_dim.ascent());
                else if (ypos + row_dim.descent() > height_)
-                       scrolled = scrollDown(ypos - height_ + row_dim.descent());
+                       scrolled = scrollDown(ypos - height_ + defaultRowHeight() ); 
+
                // else, nothing to do, the cursor is already visible so we just return.
                if (scrolled != 0) {
                        updateMetrics();
-                       buffer_.changed();
+                       return true;
                }
-               return;
+               return false;
        }
 
        // fix inline completion position
@@ -841,22 +879,24 @@ void BufferView::showCursor(DocIterator const & dit)
        Dimension const & row_dim =
                pm.getRow(cs.pos(), dit.boundary()).dimension();
 
-       if (d->anchor_pit_ == 0)
+       if (recenter)
+               d->anchor_ypos_ = height_/2;
+       else if (d->anchor_pit_ == 0)
                d->anchor_ypos_ = offset + pm.ascent();
        else if (d->anchor_pit_ == max_pit)
                d->anchor_ypos_ = height_ - offset - row_dim.descent();
+       else if (offset > height_)
+               d->anchor_ypos_ = height_ - offset - defaultRowHeight();
        else
-               d->anchor_ypos_ = defaultRowHeight() * 2 - offset - row_dim.descent();
+               d->anchor_ypos_ = defaultRowHeight() * 2;
 
        updateMetrics();
-       buffer_.changed();
+       return true;
 }
 
 
-FuncStatus BufferView::getStatus(FuncRequest const & cmd)
+bool BufferView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
 {
-       FuncStatus flag;
-
        Cursor & cur = d->cursor_;
 
        switch (cmd.action) {
@@ -874,6 +914,7 @@ FuncStatus BufferView::getStatus(FuncRequest const & cmd)
                // FIXME: Actually, these LFUNS should be moved to Text
                flag.setEnabled(cur.inTexted());
                break;
+
        case LFUN_FONT_STATE:
        case LFUN_LABEL_INSERT:
        case LFUN_INFO_INSERT:
@@ -888,6 +929,7 @@ FuncStatus BufferView::getStatus(FuncRequest const & cmd)
        case LFUN_MARK_ON:
        case LFUN_MARK_TOGGLE:
        case LFUN_SCREEN_RECENTER:
+       case LFUN_SCREEN_SHOW_CURSOR:
        case LFUN_BIBTEX_DATABASE_ADD:
        case LFUN_BIBTEX_DATABASE_DEL:
        case LFUN_NOTES_MUTATE:
@@ -903,19 +945,17 @@ FuncStatus BufferView::getStatus(FuncRequest const & cmd)
 
        case LFUN_COPY_LABEL_AS_REF: {
                // if there is an inset at cursor, see whether it
-               // handles the lfun, other start from scratch
+               // handles the lfun
                Inset * inset = cur.nextInset();
                if (!inset || !inset->getStatus(cur, cmd, flag))
-                       flag = lyx::getStatus(cmd);
+                       flag.setEnabled(false);
                break;
        }
 
-       case LFUN_NEXT_INSET_TOGGLE: 
        case LFUN_NEXT_INSET_MODIFY: {
                // this is the real function we want to invoke
                FuncRequest tmpcmd = cmd;
-               tmpcmd.action = (cmd.action == LFUN_NEXT_INSET_TOGGLE) 
-                       ? LFUN_INSET_TOGGLE : LFUN_INSET_MODIFY;
+               tmpcmd.action = LFUN_INSET_MODIFY;
                // if there is an inset at cursor, see whether it
                // handles the lfun, other start from scratch
                Inset * inset = cur.nextInset();
@@ -942,6 +982,7 @@ FuncStatus BufferView::getStatus(FuncRequest const & cmd)
 
        case LFUN_CHANGES_MERGE:
        case LFUN_CHANGE_NEXT:
+       case LFUN_CHANGE_PREVIOUS:
        case LFUN_ALL_CHANGES_ACCEPT:
        case LFUN_ALL_CHANGES_REJECT:
                // TODO: context-sensitive enabling of LFUNs
@@ -976,60 +1017,19 @@ FuncStatus BufferView::getStatus(FuncRequest const & cmd)
                flag.setEnabled(cur.inset().allowParagraphCustomization(cur.idx()));
                break;
 
-       case LFUN_INSET_SETTINGS: {
-               InsetCode code = cur.inset().lyxCode();
-               if (cmd.getArg(0) == insetName(code)) {
-                       flag.setEnabled(true);
-                       break;
-               }
-               bool enable = false;
-               InsetCode next_code = cur.nextInset()
-                       ? cur.nextInset()->lyxCode() : NO_CODE;
-               //FIXME: remove these special cases:
-               switch (next_code) {
-                       case TABULAR_CODE:
-                       case ERT_CODE:
-                       case FLOAT_CODE:
-                       case WRAP_CODE:
-                       case NOTE_CODE:
-                       case BRANCH_CODE:
-                       case BOX_CODE:
-                       case LISTINGS_CODE:
-                               enable = (cmd.argument().empty() ||
-                                         cmd.getArg(0) == insetName(next_code));
-                               break;
-                       default:
-                               break;
-               }
-               flag.setEnabled(enable);
-               break;
-       }
-
        case LFUN_DIALOG_SHOW_NEW_INSET:
+               if (cur.inset().lyxCode() == CAPTION_CODE)
+                       return cur.inset().getStatus(cur, cmd, flag);
                flag.setEnabled(cur.inset().lyxCode() != ERT_CODE &&
                        cur.inset().lyxCode() != LISTINGS_CODE);
-               if (cur.inset().lyxCode() == CAPTION_CODE) {
-                       FuncStatus flag;
-                       if (cur.inset().getStatus(cur, cmd, flag))
-                               return flag;
-               }
-               break;
-
-       case LFUN_BRANCH_ACTIVATE: 
-       case LFUN_BRANCH_DEACTIVATE: {
-               bool enable = false;
-               docstring const branchName = cmd.argument();
-               if (!branchName.empty())
-                       enable = buffer_.params().branchlist().find(branchName);
-               flag.setEnabled(enable);
                break;
-       }
 
        default:
                flag.setEnabled(false);
+               return false;
        }
 
-       return flag;
+       return true;
 }
 
 
@@ -1078,7 +1078,7 @@ bool BufferView::dispatch(FuncRequest const & cmd)
                docstring label = cmd.argument();
                if (label.empty()) {
                        InsetRef * inset =
-                               getInsetByCode<InsetRef>(d->cursor_, REF_CODE);
+                               getInsetByCode<InsetRef>(cur, REF_CODE);
                        if (inset) {
                                label = inset->getParam("reference");
                                // persistent=false: use temp_bookmark
@@ -1162,19 +1162,19 @@ bool BufferView::dispatch(FuncRequest const & cmd)
                buffer_.params().outputChanges = !buffer_.params().outputChanges;
                if (buffer_.params().outputChanges) {
                        bool dvipost    = LaTeXFeatures::isAvailable("dvipost");
-                       bool xcolorsoul = LaTeXFeatures::isAvailable("soul") &&
+                       bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
                                          LaTeXFeatures::isAvailable("xcolor");
 
-                       if (!dvipost && !xcolorsoul) {
+                       if (!dvipost && !xcolorulem) {
                                Alert::warning(_("Changes not shown in LaTeX output"),
                                               _("Changes will not be highlighted in LaTeX output, "
-                                                "because neither dvipost nor xcolor/soul are installed.\n"
+                                                "because neither dvipost nor xcolor/ulem are installed.\n"
                                                 "Please install these packages or redefine "
                                                 "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
-                       } else if (!xcolorsoul) {
+                       } else if (!xcolorulem) {
                                Alert::warning(_("Changes not shown in LaTeX output"),
                                               _("Changes will not be highlighted in LaTeX output "
-                                                "when using pdflatex, because xcolor and soul are not installed.\n"
+                                                "when using pdflatex, because xcolor and ulem are not installed.\n"
                                                 "Please install both packages or redefine "
                                                 "\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
                        }
@@ -1186,9 +1186,15 @@ bool BufferView::dispatch(FuncRequest const & cmd)
                // FIXME: Move this LFUN to Buffer so that we don't have to do this:
                processUpdateFlags(Update::Force | Update::FitCursor);
                break;
+       
+       case LFUN_CHANGE_PREVIOUS:
+               findPreviousChange(this);
+               // FIXME: Move this LFUN to Buffer so that we don't have to do this:
+               processUpdateFlags(Update::Force | Update::FitCursor);
+               break;
 
        case LFUN_CHANGES_MERGE:
-               if (findNextChange(this)) {
+               if (findNextChange(this) || findPreviousChange(this)) {
                        processUpdateFlags(Update::Force | Update::FitCursor);
                        showDialog("changes");
                }
@@ -1196,23 +1202,23 @@ bool BufferView::dispatch(FuncRequest const & cmd)
 
        case LFUN_ALL_CHANGES_ACCEPT:
                // select complete document
-               d->cursor_.reset(buffer_.inset());
-               d->cursor_.selHandle(true);
-               buffer_.text().cursorBottom(d->cursor_);
+               cur.reset(buffer_.inset());
+               cur.selHandle(true);
+               buffer_.text().cursorBottom(cur);
                // accept everything in a single step to support atomic undo
-               buffer_.text().acceptOrRejectChanges(d->cursor_, Text::ACCEPT);
+               buffer_.text().acceptOrRejectChanges(cur, Text::ACCEPT);
                // FIXME: Move this LFUN to Buffer so that we don't have to do this:
                processUpdateFlags(Update::Force | Update::FitCursor);
                break;
 
        case LFUN_ALL_CHANGES_REJECT:
                // select complete document
-               d->cursor_.reset(buffer_.inset());
-               d->cursor_.selHandle(true);
-               buffer_.text().cursorBottom(d->cursor_);
+               cur.reset(buffer_.inset());
+               cur.selHandle(true);
+               buffer_.text().cursorBottom(cur);
                // 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(d->cursor_, Text::REJECT);
+               buffer_.text().acceptOrRejectChanges(cur, Text::REJECT);
                // FIXME: Move this LFUN to Buffer so that we don't have to do this:
                processUpdateFlags(Update::Force | Update::FitCursor);
                break;
@@ -1255,19 +1261,17 @@ bool BufferView::dispatch(FuncRequest const & cmd)
 
        case LFUN_MARK_OFF:
                cur.clearSelection();
-               cur.resetAnchor();
                cur.message(from_utf8(N_("Mark off")));
                break;
 
        case LFUN_MARK_ON:
                cur.clearSelection();
                cur.setMark(true);
-               cur.resetAnchor();
                cur.message(from_utf8(N_("Mark on")));
                break;
 
        case LFUN_MARK_TOGGLE:
-               cur.clearSelection();
+               cur.setSelection(false);
                if (cur.mark()) {
                        cur.setMark(false);
                        cur.message(from_utf8(N_("Mark removed")));
@@ -1278,12 +1282,16 @@ bool BufferView::dispatch(FuncRequest const & cmd)
                cur.resetAnchor();
                break;
 
-       case LFUN_SCREEN_RECENTER:
+       case LFUN_SCREEN_SHOW_CURSOR:
                showCursor();
                break;
+       
+       case LFUN_SCREEN_RECENTER:
+               recenter();
+               break;
 
        case LFUN_BIBTEX_DATABASE_ADD: {
-               Cursor tmpcur = d->cursor_;
+               Cursor tmpcur = cur;
                findInset(tmpcur, BIBTEX_CODE, false);
                InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
                                                BIBTEX_CODE);
@@ -1295,7 +1303,7 @@ bool BufferView::dispatch(FuncRequest const & cmd)
        }
 
        case LFUN_BIBTEX_DATABASE_DEL: {
-               Cursor tmpcur = d->cursor_;
+               Cursor tmpcur = cur;
                findInset(tmpcur, BIBTEX_CODE, false);
                InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
                                                BIBTEX_CODE);
@@ -1363,35 +1371,6 @@ bool BufferView::dispatch(FuncRequest const & cmd)
                processUpdateFlags(Update::SinglePar | Update::FitCursor);
                break;
        }
-       case LFUN_NEXT_INSET_TOGGLE: {
-               // create the the real function we want to invoke
-               FuncRequest tmpcmd = cmd;
-               tmpcmd.action = LFUN_INSET_TOGGLE;
-               // if there is an inset at cursor, see whether it
-               // wants to toggle.
-               Inset * inset = cur.nextInset();
-               if (inset) {
-                       if (inset->isActive()) {
-                               Cursor tmpcur = cur;
-                               tmpcur.pushBackward(*inset);
-                               inset->dispatch(tmpcur, tmpcmd);
-                               if (tmpcur.result().dispatched())
-                                       cur.dispatched();
-                       } else 
-                               inset->dispatch(cur, tmpcmd);
-               }
-               // if it did not work, try the underlying inset.
-               if (!inset || !cur.result().dispatched())
-                       cur.dispatch(tmpcmd);
-
-               if (!cur.result().dispatched())
-                       // It did not work too; no action needed.
-                       break;
-               cur.clearSelection();
-               processUpdateFlags(Update::SinglePar | Update::FitCursor);
-               break;
-       }
-
        case LFUN_NEXT_INSET_MODIFY: {
                // create the the real function we want to invoke
                FuncRequest tmpcmd = cmd;
@@ -1399,11 +1378,15 @@ bool BufferView::dispatch(FuncRequest const & cmd)
                // if there is an inset at cursor, see whether it
                // can be modified.
                Inset * inset = cur.nextInset();
-               if (inset)
+               if (inset) {
+                       cur.recordUndo();
                        inset->dispatch(cur, tmpcmd);
+               }
                // if it did not work, try the underlying inset.
-               if (!inset || !cur.result().dispatched())
+               if (!inset || !cur.result().dispatched()) {
+                       cur.recordUndo();
                        cur.dispatch(tmpcmd);
+               }
 
                if (!cur.result().dispatched())
                        // It did not work too; no action needed.
@@ -1427,12 +1410,17 @@ bool BufferView::dispatch(FuncRequest const & cmd)
                        p = Point(0, 0);
                if (cmd.action == LFUN_SCREEN_DOWN && scrolled < height_)
                        p = Point(width_, height_);
+               Cursor old = cur;
+               bool const in_texted = cur.inTexted();
                cur.reset(buffer_.inset());
                updateMetrics();
                buffer_.changed();
                d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_);
                //FIXME: what to do with cur.x_target()?
+               bool update = in_texted && cur.bv().checkDepm(cur, old);
                cur.finishUndo();
+               if (update)
+                       processUpdateFlags(Update::Force | Update::FitCursor);
                break;
        }
 
@@ -1474,12 +1462,6 @@ bool BufferView::dispatch(FuncRequest const & cmd)
                break;
        }
 
-       case LFUN_BRANCH_ACTIVATE:
-       case LFUN_BRANCH_DEACTIVATE:
-               buffer_.dispatch(cmd);
-               processUpdateFlags(Update::Force);
-               break;
-
        // This could be rewriten using some command like forall <insetname> <command>
        // once the insets refactoring is done.
        case LFUN_NOTES_MUTATE: {
@@ -1718,6 +1700,12 @@ void BufferView::lfunScroll(FuncRequest const & cmd)
 }
 
 
+int BufferView::minVisiblePart()
+{
+       return 2 * defaultRowHeight();
+}
+
+
 int BufferView::scroll(int y)
 {
        if (y > 0)
@@ -1732,10 +1720,12 @@ int BufferView::scrollDown(int offset)
 {
        Text * text = &buffer_.text();
        TextMetrics & tm = d->text_metrics_[text];
-       int ymax = height_ + offset;
+       int const ymax = height_ + offset;
        while (true) {
                pair<pit_type, ParagraphMetrics const *> last = tm.last();
                int bottom_pos = last.second->position() + last.second->descent();
+               if (lyxrc.scroll_below_document)
+                       bottom_pos += height_ - minVisiblePart();
                if (last.first + 1 == int(text->paragraphs().size())) {
                        if (bottom_pos <= height_)
                                return 0;
@@ -2243,6 +2233,29 @@ bool BufferView::paragraphVisible(DocIterator const & dit) const
 }
 
 
+void BufferView::cursorPosAndHeight(Point & p, int & h) const
+{
+       Cursor const & cur = cursor();
+       Font const font = cur.getFont();
+       frontend::FontMetrics const & fm = theFontMetrics(font);
+       int const asc = fm.maxAscent();
+       int const des = fm.maxDescent();
+       h = asc + des;
+       p = getPos(cur, cur.boundary());
+       p.y_ -= asc;
+}
+
+
+bool BufferView::cursorInView(Point const & p, int h) const
+{
+       Cursor const & cur = cursor();
+       // does the cursor touch the screen ?
+       if (p.y_ + h < 0 || p.y_ >= workHeight() || !paragraphVisible(cur))
+               return false;
+       return true;
+}
+
+
 void BufferView::draw(frontend::Painter & pain)
 {
        if (height_ == 0 || width_ == 0)
@@ -2432,6 +2445,8 @@ bool samePar(DocIterator const & a, DocIterator const & b)
                return true;
        if (a.empty() || b.empty())
                return false;
+       if (a.depth() != b.depth())
+               return false;
        return &a.innerParagraph() == &b.innerParagraph();
 }