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;
}
}
+void BufferView::recenter()
+{
+ showCursor(d->cursor_, true);
+}
+
+
void BufferView::showCursor()
{
- showCursor(d->cursor_);
+ showCursor(d->cursor_, false);
}
-void BufferView::showCursor(DocIterator const & dit)
+void BufferView::showCursor(DocIterator const & dit, bool recenter)
+{
+ if (scrollToCursor(dit, recenter))
+ buffer_.changed();
+}
+
+
+void BufferView::scrollToCursor()
+{
+ scrollToCursor(d->cursor_, false);
+}
+
+
+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!");
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 - defaultRowHeight());
+ 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
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();
d->anchor_ypos_ = defaultRowHeight() * 2;
updateMetrics();
- buffer_.changed();
+ return true;
}
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:
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();
case LFUN_BRANCH_ACTIVATE:
case LFUN_BRANCH_DEACTIVATE: {
- bool enable = false;
+ BranchList const & branchList = buffer_.params().branchlist();
docstring const branchName = cmd.argument();
- if (!branchName.empty())
- enable = buffer_.params().branchlist().find(branchName);
- flag.setEnabled(enable);
+ flag.setEnabled(!branchName.empty()
+ && branchList.find(branchName));
break;
}
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_;
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;
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;
}
case LFUN_BRANCH_ACTIVATE:
case LFUN_BRANCH_DEACTIVATE:
+ if (cmd.argument().empty())
+ return false;
buffer_.dispatch(cmd);
processUpdateFlags(Update::Force);
break;
}
+int BufferView::minVisiblePart()
+{
+ return 2 * defaultRowHeight();
+}
+
+
int BufferView::scroll(int y)
{
if (y > 0)
{
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;
}
+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)