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lyx_mirror/src/BufferView.cpp
Tommaso Cucinotta d5eb8c0968 (finishing patch -- question was restored, but there were still problems) 
Restore the wrap-around question when no more hits found while searching with Advanced Search.
The dispatched() flag is used currently in FindAndReplace.cpp in order to discriminate between
match found and not found and, in the latter case, pop-up the wrap-around question dialog.



git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@36279 a592a061-630c-0410-9148-cb99ea01b6c8
2010-11-13 12:02:04 +00:00

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/**
* \file BufferView.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Alfredo Braunstein
* \author Lars Gullik Bjønnes
* \author John Levon
* \author André Pönitz
* \author Jürgen Vigna
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "BufferView.h"
#include "BranchList.h"
#include "Buffer.h"
#include "buffer_funcs.h"
#include "BufferList.h"
#include "BufferParams.h"
#include "CoordCache.h"
#include "Cursor.h"
#include "CutAndPaste.h"
#include "DispatchResult.h"
#include "ErrorList.h"
#include "factory.h"
#include "FloatList.h"
#include "FuncRequest.h"
#include "FuncStatus.h"
#include "Intl.h"
#include "InsetIterator.h"
#include "Language.h"
#include "LaTeXFeatures.h"
#include "LayoutFile.h"
#include "Lexer.h"
#include "LyX.h"
#include "LyXAction.h"
#include "lyxfind.h"
#include "Layout.h"
#include "LyXRC.h"
#include "MetricsInfo.h"
#include "Paragraph.h"
#include "ParagraphParameters.h"
#include "ParIterator.h"
#include "Session.h"
#include "Text.h"
#include "TextClass.h"
#include "TextMetrics.h"
#include "TexRow.h"
#include "TocBackend.h"
#include "VSpace.h"
#include "WordLangTuple.h"
#include "insets/InsetBibtex.h"
#include "insets/InsetCommand.h" // ChangeRefs
#include "insets/InsetExternal.h"
#include "insets/InsetGraphics.h"
#include "insets/InsetNote.h"
#include "insets/InsetRef.h"
#include "insets/InsetText.h"
#include "frontends/alert.h"
#include "frontends/Application.h"
#include "frontends/Delegates.h"
#include "frontends/FontMetrics.h"
#include "frontends/Painter.h"
#include "frontends/Selection.h"
#include "graphics/Previews.h"
#include "support/convert.h"
#include "support/debug.h"
#include "support/ExceptionMessage.h"
#include "support/filetools.h"
#include "support/gettext.h"
#include "support/lstrings.h"
#include "support/Package.h"
#include "support/types.h"
#include <cerrno>
#include <fstream>
#include <functional>
#include <iterator>
#include <sstream>
#include <vector>
using namespace std;
using namespace lyx::support;
namespace lyx {
namespace Alert = frontend::Alert;
namespace {
/// Return an inset of this class if it exists at the current cursor position
template <class T>
T * getInsetByCode(Cursor const & cur, InsetCode code)
{
DocIterator it = cur;
Inset * inset = it.nextInset();
if (inset && inset->lyxCode() == code)
return static_cast<T*>(inset);
return 0;
}
/// Note that comparing contents can only be used for InsetCommand
bool findNextInset(DocIterator & dit, vector<InsetCode> const & codes,
docstring const & contents)
{
DocIterator tmpdit = dit;
while (tmpdit) {
Inset const * inset = tmpdit.nextInset();
if (inset) {
bool const valid_code = std::find(codes.begin(), codes.end(),
inset->lyxCode()) != codes.end();
InsetCommand const * ic = inset->asInsetCommand();
bool const same_or_no_contents = contents.empty()
|| (ic && (ic->getFirstNonOptParam() == contents));
if (valid_code && same_or_no_contents) {
dit = tmpdit;
return true;
}
}
tmpdit.forwardInset();
}
return false;
}
/// Looks for next inset with one of the given codes.
/// Note that same_content can only be used for InsetCommand
bool findInset(DocIterator & dit, vector<InsetCode> const & codes,
bool same_content)
{
docstring contents;
DocIterator tmpdit = dit;
tmpdit.forwardInset();
if (!tmpdit)
return false;
Inset const * inset = tmpdit.nextInset();
if (same_content && inset) {
InsetCommand const * ic = inset->asInsetCommand();
if (ic) {
bool const valid_code = std::find(codes.begin(), codes.end(),
ic->lyxCode()) != codes.end();
if (valid_code)
contents = ic->getFirstNonOptParam();
}
}
if (!findNextInset(tmpdit, codes, contents)) {
if (dit.depth() != 1 || dit.pit() != 0 || dit.pos() != 0) {
Inset * inset = &tmpdit.bottom().inset();
tmpdit = doc_iterator_begin(&inset->buffer(), inset);
if (!findNextInset(tmpdit, codes, contents))
return false;
} else {
return false;
}
}
dit = tmpdit;
return true;
}
/// Looks for next inset with the given code
void findInset(DocIterator & dit, InsetCode code, bool same_content)
{
findInset(dit, vector<InsetCode>(1, code), same_content);
}
/// Moves cursor to the next inset with one of the given codes.
void gotoInset(BufferView * bv, vector<InsetCode> const & codes,
bool same_content)
{
Cursor tmpcur = bv->cursor();
if (!findInset(tmpcur, codes, same_content)) {
bv->cursor().message(_("No more insets"));
return;
}
tmpcur.clearSelection();
bv->setCursor(tmpcur);
bv->showCursor();
}
/// Moves cursor to the next inset with given code.
void gotoInset(BufferView * bv, InsetCode code, bool same_content)
{
gotoInset(bv, vector<InsetCode>(1, code), same_content);
}
/// A map from a Text to the associated text metrics
typedef map<Text const *, TextMetrics> TextMetricsCache;
enum ScreenUpdateStrategy {
NoScreenUpdate,
SingleParUpdate,
FullScreenUpdate,
DecorationUpdate
};
} // anon namespace
/////////////////////////////////////////////////////////////////////
//
// BufferView
//
/////////////////////////////////////////////////////////////////////
struct BufferView::Private
{
Private(BufferView & bv): wh_(0), cursor_(bv),
anchor_pit_(0), anchor_ypos_(0),
inlineCompletionUniqueChars_(0),
last_inset_(0), clickable_inset_(false),
mouse_position_cache_(),
bookmark_edit_position_(-1), gui_(0)
{}
///
ScrollbarParameters scrollbarParameters_;
///
ScreenUpdateStrategy update_strategy_;
///
CoordCache coord_cache_;
/// Estimated average par height for scrollbar.
int wh_;
/// this is used to handle XSelection events in the right manner.
struct {
CursorSlice cursor;
CursorSlice anchor;
bool set;
} xsel_cache_;
///
Cursor cursor_;
///
pit_type anchor_pit_;
///
int anchor_ypos_;
///
vector<int> par_height_;
///
DocIterator inlineCompletionPos_;
///
docstring inlineCompletion_;
///
size_t inlineCompletionUniqueChars_;
/// keyboard mapping object.
Intl intl_;
/// last visited inset.
/** kept to send setMouseHover(false).
* Not owned, so don't delete.
*/
Inset * last_inset_;
/// are we hovering something that we can click
bool clickable_inset_;
/// position of the mouse at the time of the last mouse move
/// This is used to update the hovering status of inset in
/// cases where the buffer is scrolled, but the mouse didn't move.
Point mouse_position_cache_;
// cache for id of the paragraph which was edited the last time
int bookmark_edit_position_;
mutable TextMetricsCache text_metrics_;
/// Whom to notify.
/** Not owned, so don't delete.
*/
frontend::GuiBufferViewDelegate * gui_;
/// Cache for Find Next
FuncRequest search_request_cache_;
///
map<string, Inset *> edited_insets_;
};
BufferView::BufferView(Buffer & buf)
: width_(0), height_(0), full_screen_(false), buffer_(buf),
d(new Private(*this))
{
d->xsel_cache_.set = false;
d->intl_.initKeyMapper(lyxrc.use_kbmap);
d->cursor_.setBuffer(&buf);
d->cursor_.push(buffer_.inset());
d->cursor_.resetAnchor();
d->cursor_.setCurrentFont();
buffer_.updatePreviews();
}
BufferView::~BufferView()
{
// current buffer is going to be switched-off, save cursor pos
// Ideally, the whole cursor stack should be saved, but session
// currently can only handle bottom (whole document) level pit and pos.
// That is to say, if a cursor is in a nested inset, it will be
// restore to the left of the top level inset.
LastFilePosSection::FilePos fp;
fp.pit = d->cursor_.bottom().pit();
fp.pos = d->cursor_.bottom().pos();
theSession().lastFilePos().save(buffer_.fileName(), fp);
if (d->last_inset_)
d->last_inset_->setMouseHover(this, false);
delete d;
}
int BufferView::rightMargin() const
{
// The additional test for the case the outliner is opened.
if (!full_screen_ ||
!lyxrc.full_screen_limit ||
width_ < lyxrc.full_screen_width + 20)
return 10;
return (width_ - lyxrc.full_screen_width) / 2;
}
int BufferView::leftMargin() const
{
return rightMargin();
}
bool BufferView::isTopScreen() const
{
return d->scrollbarParameters_.position == d->scrollbarParameters_.min;
}
bool BufferView::isBottomScreen() const
{
return d->scrollbarParameters_.position == d->scrollbarParameters_.max;
}
Intl & BufferView::getIntl()
{
return d->intl_;
}
Intl const & BufferView::getIntl() const
{
return d->intl_;
}
CoordCache & BufferView::coordCache()
{
return d->coord_cache_;
}
CoordCache const & BufferView::coordCache() const
{
return d->coord_cache_;
}
Buffer & BufferView::buffer()
{
return buffer_;
}
Buffer const & BufferView::buffer() const
{
return buffer_;
}
bool BufferView::fitCursor()
{
if (cursorStatus(d->cursor_) == CUR_INSIDE) {
frontend::FontMetrics const & fm =
theFontMetrics(d->cursor_.getFont().fontInfo());
int const asc = fm.maxAscent();
int const des = fm.maxDescent();
Point const p = getPos(d->cursor_);
if (p.y_ - asc >= 0 && p.y_ + des < height_)
return false;
}
return true;
}
void BufferView::processUpdateFlags(Update::flags flags)
{
// This is close to a hot-path.
LYXERR(Debug::DEBUG, "BufferView::processUpdateFlags()"
<< "[fitcursor = " << (flags & Update::FitCursor)
<< ", forceupdate = " << (flags & Update::Force)
<< ", singlepar = " << (flags & Update::SinglePar)
<< "] buffer: " << &buffer_);
// FIXME Does this really need doing here? It's done in updateBuffer, and
// if the Buffer doesn't need updating, then do the macros?
buffer_.updateMacros();
// Now do the first drawing step if needed. This consists on updating
// the CoordCache in updateMetrics().
// The second drawing step is done in WorkArea::redraw() if needed.
// Case when no explicit update is requested.
if (!flags) {
// no need to redraw anything.
d->update_strategy_ = NoScreenUpdate;
return;
}
if (flags == Update::Decoration) {
d->update_strategy_ = DecorationUpdate;
buffer_.changed(false);
return;
}
if (flags == Update::FitCursor
|| flags == (Update::Decoration | Update::FitCursor)) {
// tell the frontend to update the screen if needed.
if (fitCursor()) {
showCursor();
return;
}
if (flags & Update::Decoration) {
d->update_strategy_ = DecorationUpdate;
buffer_.changed(false);
return;
}
// no screen update is needed.
d->update_strategy_ = NoScreenUpdate;
return;
}
bool const full_metrics = flags & Update::Force || !singleParUpdate();
if (full_metrics)
// We have to update the full screen metrics.
updateMetrics();
if (!(flags & Update::FitCursor)) {
// Nothing to do anymore. Trigger a redraw and return
buffer_.changed(false);
return;
}
// updateMetrics() does not update paragraph position
// This is done at draw() time. So we need a redraw!
buffer_.changed(false);
if (fitCursor()) {
// The cursor is off screen so ensure it is visible.
// refresh it:
showCursor();
}
updateHoveredInset();
}
void BufferView::updateScrollbar()
{
if (height_ == 0 && width_ == 0)
return;
// We prefer fixed size line scrolling.
d->scrollbarParameters_.single_step = defaultRowHeight();
// We prefer full screen page scrolling.
d->scrollbarParameters_.page_step = height_;
Text & t = buffer_.text();
TextMetrics & tm = d->text_metrics_[&t];
LYXERR(Debug::GUI, " Updating scrollbar: height: "
<< t.paragraphs().size()
<< " curr par: " << d->cursor_.bottom().pit()
<< " default height " << defaultRowHeight());
size_t const parsize = t.paragraphs().size();
if (d->par_height_.size() != parsize) {
d->par_height_.clear();
// FIXME: We assume a default paragraph height of 2 rows. This
// should probably be pondered with the screen width.
d->par_height_.resize(parsize, defaultRowHeight() * 2);
}
// Look at paragraph heights on-screen
pair<pit_type, ParagraphMetrics const *> first = tm.first();
pair<pit_type, ParagraphMetrics const *> last = tm.last();
for (pit_type pit = first.first; pit <= last.first; ++pit) {
d->par_height_[pit] = tm.parMetrics(pit).height();
LYXERR(Debug::SCROLLING, "storing height for pit " << pit << " : "
<< d->par_height_[pit]);
}
int top_pos = first.second->position() - first.second->ascent();
int bottom_pos = last.second->position() + last.second->descent();
bool first_visible = first.first == 0 && top_pos >= 0;
bool last_visible = last.first + 1 == int(parsize) && bottom_pos <= height_;
if (first_visible && last_visible) {
d->scrollbarParameters_.min = 0;
d->scrollbarParameters_.max = 0;
return;
}
d->scrollbarParameters_.min = top_pos;
for (size_t i = 0; i != size_t(first.first); ++i)
d->scrollbarParameters_.min -= d->par_height_[i];
d->scrollbarParameters_.max = bottom_pos;
for (size_t i = last.first + 1; i != parsize; ++i)
d->scrollbarParameters_.max += d->par_height_[i];
d->scrollbarParameters_.position = 0;
// The reference is the top position so we remove one page.
if (lyxrc.scroll_below_document)
d->scrollbarParameters_.max -= minVisiblePart();
else
d->scrollbarParameters_.max -= d->scrollbarParameters_.page_step;
}
ScrollbarParameters const & BufferView::scrollbarParameters() const
{
return d->scrollbarParameters_;
}
docstring BufferView::toolTip(int x, int y) const
{
// Get inset under mouse, if there is one.
Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
if (!covering_inset)
// No inset, no tooltip...
return docstring();
return covering_inset->toolTip(*this, x, y);
}
docstring BufferView::contextMenu(int x, int y) const
{
//If there is a selection, return the containing inset menu
if (d->cursor_.selection())
return d->cursor_.inset().contextMenu(*this, x, y);
// Get inset under mouse, if there is one.
Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
if (covering_inset)
return covering_inset->contextMenu(*this, x, y);
return buffer_.inset().contextMenu(*this, x, y);
}
void BufferView::scrollDocView(int value, bool update)
{
int const offset = value - d->scrollbarParameters_.position;
// No scrolling at all? No need to redraw anything
if (offset == 0)
return;
// If the offset is less than 2 screen height, prefer to scroll instead.
if (abs(offset) <= 2 * height_) {
d->anchor_ypos_ -= offset;
buffer_.changed(true);
updateHoveredInset();
return;
}
// cut off at the top
if (value <= d->scrollbarParameters_.min) {
DocIterator dit = doc_iterator_begin(&buffer_);
showCursor(dit, false, update);
LYXERR(Debug::SCROLLING, "scroll to top");
return;
}
// cut off at the bottom
if (value >= d->scrollbarParameters_.max) {
DocIterator dit = doc_iterator_end(&buffer_);
dit.backwardPos();
showCursor(dit, false, update);
LYXERR(Debug::SCROLLING, "scroll to bottom");
return;
}
// find paragraph at target position
int par_pos = d->scrollbarParameters_.min;
pit_type i = 0;
for (; i != int(d->par_height_.size()); ++i) {
par_pos += d->par_height_[i];
if (par_pos >= value)
break;
}
if (par_pos < value) {
// It seems we didn't find the correct pit so stay on the safe side and
// scroll to bottom.
LYXERR0("scrolling position not found!");
scrollDocView(d->scrollbarParameters_.max, update);
return;
}
DocIterator dit = doc_iterator_begin(&buffer_);
dit.pit() = i;
LYXERR(Debug::SCROLLING, "value = " << value << " -> scroll to pit " << i);
showCursor(dit, false, update);
}
// FIXME: this method is not working well.
void BufferView::setCursorFromScrollbar()
{
TextMetrics & tm = d->text_metrics_[&buffer_.text()];
int const height = 2 * defaultRowHeight();
int const first = height;
int const last = height_ - height;
int newy = 0;
Cursor const & oldcur = d->cursor_;
switch (cursorStatus(oldcur)) {
case CUR_ABOVE:
newy = first;
break;
case CUR_BELOW:
newy = last;
break;
case CUR_INSIDE:
int const y = getPos(oldcur).y_;
newy = min(last, max(y, first));
if (y == newy)
return;
}
// We reset the cursor because cursorStatus() does not
// work when the cursor is within mathed.
Cursor cur(*this);
cur.reset();
tm.setCursorFromCoordinates(cur, 0, newy);
// update the bufferview cursor and notify insets
// FIXME: Care about the d->cursor_ flags to redraw if needed
Cursor old = d->cursor_;
mouseSetCursor(cur);
bool badcursor = notifyCursorLeavesOrEnters(old, d->cursor_);
if (badcursor)
d->cursor_.fixIfBroken();
}
Change const BufferView::getCurrentChange() const
{
if (!d->cursor_.selection())
return Change(Change::UNCHANGED);
DocIterator dit = d->cursor_.selectionBegin();
return dit.paragraph().lookupChange(dit.pos());
}
// this could be used elsewhere as well?
// FIXME: This does not work within mathed!
CursorStatus BufferView::cursorStatus(DocIterator const & dit) const
{
Point const p = getPos(dit);
if (p.y_ < 0)
return CUR_ABOVE;
if (p.y_ > workHeight())
return CUR_BELOW;
return CUR_INSIDE;
}
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)
{
// 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.
if (!buffer_.isInternal()) {
theSession().bookmarks().save(
buffer_.fileName(),
d->cursor_.bottom().pit(),
d->cursor_.bottom().pos(),
d->cursor_.paragraph().id(),
d->cursor_.pos(),
idx
);
if (idx)
// emit message signal.
message(_("Save bookmark"));
}
}
bool BufferView::moveToPosition(pit_type bottom_pit, pos_type bottom_pos,
int top_id, pos_type top_pos)
{
bool success = false;
DocIterator dit;
d->cursor_.clearSelection();
// if a valid par_id is given, try it first
// This is the case for a 'live' bookmark when unique paragraph ID
// is used to track bookmarks.
if (top_id > 0) {
dit = buffer_.getParFromID(top_id);
if (!dit.atEnd()) {
dit.pos() = min(dit.paragraph().size(), top_pos);
// Some slices of the iterator may not be
// reachable (e.g. closed collapsable inset)
// so the dociterator may need to be
// shortened. Otherwise, setCursor may crash
// lyx when the cursor can not be set to these
// insets.
size_t const n = dit.depth();
for (size_t i = 0; i < n; ++i)
if (!dit[i].inset().editable()) {
dit.resize(i);
break;
}
success = true;
}
}
// if top_id == 0, or searching through top_id failed
// This is the case for a 'restored' bookmark when only bottom
// (document level) pit was saved. Because of this, bookmark
// restoration is inaccurate. If a bookmark was within an inset,
// it will be restored to the left of the outmost inset that contains
// the bookmark.
if (bottom_pit < int(buffer_.paragraphs().size())) {
dit = doc_iterator_begin(&buffer_);
dit.pit() = bottom_pit;
dit.pos() = min(bottom_pos, dit.paragraph().size());
success = true;
}
if (success) {
// Note: only bottom (document) level pit is set.
setCursor(dit);
// set the current font.
d->cursor_.setCurrentFont();
// To center the screen on this new position we need the
// paragraph position which is computed at draw() time.
// So we need a redraw!
buffer_.changed(false);
if (fitCursor())
showCursor();
}
return success;
}
void BufferView::translateAndInsert(char_type c, Text * t, Cursor & cur)
{
if (lyxrc.rtl_support) {
if (d->cursor_.real_current_font.isRightToLeft()) {
if (d->intl_.keymap == Intl::PRIMARY)
d->intl_.keyMapSec();
} else {
if (d->intl_.keymap == Intl::SECONDARY)
d->intl_.keyMapPrim();
}
}
d->intl_.getTransManager().translateAndInsert(c, t, cur);
}
int BufferView::workWidth() const
{
return width_;
}
void BufferView::recenter()
{
showCursor(d->cursor_, true, true);
}
void BufferView::showCursor()
{
showCursor(d->cursor_, false, true);
}
void BufferView::showCursor(DocIterator const & dit,
bool recenter, bool update)
{
if (scrollToCursor(dit, recenter) && update) {
buffer_.changed(true);
updateHoveredInset();
}
}
void BufferView::scrollToCursor()
{
if (scrollToCursor(d->cursor_, false)) {
buffer_.changed(true);
updateHoveredInset();
}
}
bool BufferView::scrollToCursor(DocIterator const & dit, bool recenter)
{
// We are not properly started yet, delay until resizing is
// done.
if (height_ == 0)
return false;
LYXERR(Debug::SCROLLING, "recentering!");
CursorSlice const & bot = dit.bottom();
TextMetrics & tm = d->text_metrics_[bot.text()];
pos_type const max_pit = pos_type(bot.text()->paragraphs().size() - 1);
int bot_pit = bot.pit();
if (bot_pit > max_pit) {
// FIXME: Why does this happen?
LYXERR0("bottom pit is greater that max pit: "
<< bot_pit << " > " << max_pit);
bot_pit = max_pit;
}
if (bot_pit == tm.first().first - 1)
tm.newParMetricsUp();
else if (bot_pit == tm.last().first + 1)
tm.newParMetricsDown();
if (tm.contains(bot_pit)) {
ParagraphMetrics const & pm = tm.parMetrics(bot_pit);
LASSERT(!pm.rows().empty(), /**/);
// FIXME: smooth scrolling doesn't work in mathed.
CursorSlice const & cs = dit.innerTextSlice();
int offset = coordOffset(dit).y_;
int ypos = pm.position() + offset;
Dimension const & row_dim =
pm.getRow(cs.pos(), dit.boundary()).dimension();
int scrolled = 0;
if (recenter)
scrolled = scroll(ypos - height_/2);
// If the top part of the row falls of the screen, we scroll
// up to align the top of the row with the top of the screen.
else if (ypos - row_dim.ascent() < 0)
scrolled = scrollUp(-ypos + row_dim.ascent());
// If the bottom of the row falls of the screen, we scroll down.
// However, we have to be careful not to scroll that much that
// the top falls of the screen.
else if (ypos + row_dim.descent() > height_) {
int ynew = height_ - row_dim.descent();
if (ynew < row_dim.ascent())
ynew = row_dim.ascent();
int const scroll = ypos - ynew;
scrolled = scrollDown(scroll);
}
// else, nothing to do, the cursor is already visible so we just return.
return scrolled != 0;
}
// fix inline completion position
if (d->inlineCompletionPos_.fixIfBroken())
d->inlineCompletionPos_ = DocIterator();
tm.redoParagraph(bot_pit);
ParagraphMetrics const & pm = tm.parMetrics(bot_pit);
int offset = coordOffset(dit).y_;
d->anchor_pit_ = bot_pit;
CursorSlice const & cs = dit.innerTextSlice();
Dimension const & row_dim =
pm.getRow(cs.pos(), dit.boundary()).dimension();
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;
return true;
}
void BufferView::updateDocumentClass(DocumentClass const * const olddc)
{
message(_("Converting document to new document class..."));
StableDocIterator backcur(d->cursor_);
ErrorList & el = buffer_.errorList("Class Switch");
cap::switchBetweenClasses(
olddc, buffer_.params().documentClassPtr(),
static_cast<InsetText &>(buffer_.inset()), el);
setCursor(backcur.asDocIterator(&buffer_));
buffer_.errors("Class Switch");
}
/** Return the change status at cursor position, taking in account the
* status at each level of the document iterator (a table in a deleted
* footnote is deleted).
* When \param outer is true, the top slice is not looked at.
*/
static Change::Type lookupChangeType(DocIterator const & dit, bool outer = false)
{
size_t const depth = dit.depth() - (outer ? 1 : 0);
for (size_t i = 0 ; i < depth ; ++i) {
CursorSlice const & slice = dit[i];
if (!slice.inset().inMathed()
&& slice.pos() < slice.paragraph().size()) {
Change::Type const ch = slice.paragraph().lookupChange(slice.pos()).type;
if (ch != Change::UNCHANGED)
return ch;
}
}
return Change::UNCHANGED;
}
bool BufferView::getStatus(FuncRequest const & cmd, FuncStatus & flag)
{
FuncCode const act = cmd.action();
// Can we use a readonly buffer?
if (buffer_.isReadonly()
&& !lyxaction.funcHasFlag(act, LyXAction::ReadOnly)
&& !lyxaction.funcHasFlag(act, LyXAction::NoBuffer)) {
flag.message(from_utf8(N_("Document is read-only")));
flag.setEnabled(false);
return true;
}
// Are we in a DELETED change-tracking region?
if (lookupChangeType(d->cursor_, true) == Change::DELETED
&& !lyxaction.funcHasFlag(act, LyXAction::ReadOnly)
&& !lyxaction.funcHasFlag(act, LyXAction::NoBuffer)) {
flag.message(from_utf8(N_("This portion of the document is deleted.")));
flag.setEnabled(false);
return true;
}
Cursor & cur = d->cursor_;
if (cur.getStatus(cmd, flag))
return true;
switch (act) {
// FIXME: This is a bit problematic because we don't check if this is
// a document BufferView or not for these LFUNs. We probably have to
// dispatch both to currentBufferView() and, if that fails,
// to documentBufferView(); same as we do now for current Buffer and
// document Buffer. Ideally those LFUN should go to Buffer as they
// operate on the full Buffer and the cursor is only needed either for
// an Undo record or to restore a cursor position. But we don't know
// how to do that inside Buffer of course.
case LFUN_BUFFER_PARAMS_APPLY:
case LFUN_LAYOUT_MODULES_CLEAR:
case LFUN_LAYOUT_MODULE_ADD:
case LFUN_LAYOUT_RELOAD:
case LFUN_TEXTCLASS_APPLY:
case LFUN_TEXTCLASS_LOAD:
flag.setEnabled(!buffer_.isReadonly());
break;
case LFUN_UNDO:
// We do not use the LyXAction flag for readonly because Undo sets the
// buffer clean/dirty status by itself.
flag.setEnabled(!buffer_.isReadonly() && buffer_.undo().hasUndoStack());
break;
case LFUN_REDO:
// We do not use the LyXAction flag for readonly because Redo sets the
// buffer clean/dirty status by itself.
flag.setEnabled(!buffer_.isReadonly() && buffer_.undo().hasRedoStack());
break;
case LFUN_FILE_INSERT:
case LFUN_FILE_INSERT_PLAINTEXT_PARA:
case LFUN_FILE_INSERT_PLAINTEXT:
case LFUN_BOOKMARK_SAVE:
// 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:
case LFUN_PARAGRAPH_GOTO:
case LFUN_NOTE_NEXT:
case LFUN_REFERENCE_NEXT:
case LFUN_WORD_FIND:
case LFUN_WORD_FIND_FORWARD:
case LFUN_WORD_FIND_BACKWARD:
case LFUN_WORD_FINDADV:
case LFUN_WORD_REPLACE:
case LFUN_MARK_OFF:
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_STATISTICS:
case LFUN_BRANCH_ADD_INSERT:
case LFUN_KEYMAP_OFF:
case LFUN_KEYMAP_PRIMARY:
case LFUN_KEYMAP_SECONDARY:
case LFUN_KEYMAP_TOGGLE:
flag.setEnabled(true);
break;
case LFUN_LABEL_GOTO: {
flag.setEnabled(!cmd.argument().empty()
|| getInsetByCode<InsetRef>(cur, REF_CODE));
break;
}
case LFUN_CHANGES_TRACK:
flag.setEnabled(true);
flag.setOnOff(buffer_.params().trackChanges);
break;
case LFUN_CHANGES_OUTPUT:
flag.setEnabled(true);
flag.setOnOff(buffer_.params().outputChanges);
break;
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
// In principle, these command should only be enabled if there
// is a change in the document. However, without proper
// optimizations, this will inevitably result in poor performance.
flag.setEnabled(true);
break;
case LFUN_BUFFER_TOGGLE_COMPRESSION: {
flag.setOnOff(buffer_.params().compressed);
break;
}
case LFUN_BUFFER_TOGGLE_OUTPUT_SYNC: {
flag.setOnOff(buffer_.params().output_sync);
break;
}
case LFUN_SCREEN_UP:
case LFUN_SCREEN_DOWN:
case LFUN_SCROLL:
case LFUN_SCREEN_UP_SELECT:
case LFUN_SCREEN_DOWN_SELECT:
case LFUN_INSET_FORALL:
flag.setEnabled(true);
break;
case LFUN_LAYOUT_TABULAR:
flag.setEnabled(cur.innerInsetOfType(TABULAR_CODE));
break;
case LFUN_LAYOUT:
flag.setEnabled(!cur.inset().forcePlainLayout(cur.idx()));
break;
case LFUN_LAYOUT_PARAGRAPH:
flag.setEnabled(cur.inset().allowParagraphCustomization(cur.idx()));
break;
case LFUN_DIALOG_SHOW_NEW_INSET:
// FIXME: this is wrong, but I do not understand the
// intent (JMarc)
if (cur.inset().lyxCode() == CAPTION_CODE)
return cur.inset().getStatus(cur, cmd, flag);
// FIXME we should consider passthru paragraphs too.
flag.setEnabled(!cur.inset().getLayout().isPassThru());
break;
case LFUN_CITATION_INSERT: {
FuncRequest fr(LFUN_INSET_INSERT, "citation");
// FIXME: This could turn in a recursive hell.
// Shouldn't we use Buffer::getStatus() instead?
flag.setEnabled(lyx::getStatus(fr).enabled());
break;
}
case LFUN_INSET_APPLY: {
string const name = cmd.getArg(0);
Inset * inset = editedInset(name);
if (inset) {
FuncRequest fr(LFUN_INSET_MODIFY, cmd.argument());
if (!inset->getStatus(cur, fr, flag)) {
// Every inset is supposed to handle this
LASSERT(false, break);
}
} else {
FuncRequest fr(LFUN_INSET_INSERT, cmd.argument());
flag = lyx::getStatus(fr);
}
break;
}
default:
return false;
}
return true;
}
Inset * BufferView::editedInset(string const & name) const
{
map<string, Inset *>::const_iterator it = d->edited_insets_.find(name);
return it == d->edited_insets_.end() ? 0 : it->second;
}
void BufferView::editInset(string const & name, Inset * inset)
{
d->edited_insets_[name] = inset;
}
void BufferView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
{
//lyxerr << [ cmd = " << cmd << "]" << endl;
// Make sure that the cached BufferView is correct.
LYXERR(Debug::ACTION, " action[" << cmd.action() << ']'
<< " arg[" << to_utf8(cmd.argument()) << ']'
<< " x[" << cmd.x() << ']'
<< " y[" << cmd.y() << ']'
<< " button[" << cmd.button() << ']');
string const argument = to_utf8(cmd.argument());
Cursor & cur = d->cursor_;
// Don't dispatch function that does not apply to internal buffers.
if (buffer_.isInternal()
&& lyxaction.funcHasFlag(cmd.action(), LyXAction::NoInternal))
return;
// We'll set this back to false if need be.
bool dispatched = true;
buffer_.undo().beginUndoGroup();
FuncCode const act = cmd.action();
switch (act) {
case LFUN_BUFFER_PARAMS_APPLY: {
DocumentClass const * const oldClass = buffer_.params().documentClassPtr();
cur.recordUndoFullDocument();
istringstream ss(to_utf8(cmd.argument()));
Lexer lex;
lex.setStream(ss);
int const unknown_tokens = buffer_.readHeader(lex);
if (unknown_tokens != 0) {
LYXERR0("Warning in LFUN_BUFFER_PARAMS_APPLY!\n"
<< unknown_tokens << " unknown token"
<< (unknown_tokens == 1 ? "" : "s"));
}
updateDocumentClass(oldClass);
// We are most certainly here because of a change in the document
// It is then better to make sure that all dialogs are in sync with
// current document settings.
dr.screenUpdate(Update::Force | Update::FitCursor);
dr.forceBufferUpdate();
break;
}
case LFUN_LAYOUT_MODULES_CLEAR: {
DocumentClass const * const oldClass =
buffer_.params().documentClassPtr();
cur.recordUndoFullDocument();
buffer_.params().clearLayoutModules();
buffer_.params().makeDocumentClass();
updateDocumentClass(oldClass);
dr.screenUpdate(Update::Force);
dr.forceBufferUpdate();
break;
}
case LFUN_LAYOUT_MODULE_ADD: {
BufferParams const & params = buffer_.params();
if (!params.moduleCanBeAdded(argument)) {
LYXERR0("Module `" << argument <<
"' cannot be added due to failed requirements or "
"conflicts with installed modules.");
break;
}
DocumentClass const * const oldClass = params.documentClassPtr();
cur.recordUndoFullDocument();
buffer_.params().addLayoutModule(argument);
buffer_.params().makeDocumentClass();
updateDocumentClass(oldClass);
dr.screenUpdate(Update::Force);
dr.forceBufferUpdate();
break;
}
case LFUN_TEXTCLASS_APPLY: {
// since this shortcircuits, the second call is made only if
// the first fails
bool const success =
LayoutFileList::get().load(argument, buffer_.temppath()) ||
LayoutFileList::get().load(argument, buffer_.filePath());
if (!success) {
docstring s = bformat(_("The document class `%1$s' "
"could not be loaded."), from_utf8(argument));
frontend::Alert::error(_("Could not load class"), s);
break;
}
LayoutFile const * old_layout = buffer_.params().baseClass();
LayoutFile const * new_layout = &(LayoutFileList::get()[argument]);
if (old_layout == new_layout)
// nothing to do
break;
// Save the old, possibly modular, layout for use in conversion.
DocumentClass const * const oldDocClass =
buffer_.params().documentClassPtr();
cur.recordUndoFullDocument();
buffer_.params().setBaseClass(argument);
buffer_.params().makeDocumentClass();
updateDocumentClass(oldDocClass);
dr.screenUpdate(Update::Force);
dr.forceBufferUpdate();
break;
}
case LFUN_TEXTCLASS_LOAD: {
// since this shortcircuits, the second call is made only if
// the first fails
bool const success =
LayoutFileList::get().load(argument, buffer_.temppath()) ||
LayoutFileList::get().load(argument, buffer_.filePath());
if (!success) {
docstring s = bformat(_("The document class `%1$s' "
"could not be loaded."), from_utf8(argument));
frontend::Alert::error(_("Could not load class"), s);
}
break;
}
case LFUN_LAYOUT_RELOAD: {
DocumentClass const * const oldClass = buffer_.params().documentClassPtr();
LayoutFileIndex bc = buffer_.params().baseClassID();
LayoutFileList::get().reset(bc);
buffer_.params().setBaseClass(bc);
buffer_.params().makeDocumentClass();
updateDocumentClass(oldClass);
dr.screenUpdate(Update::Force);
dr.forceBufferUpdate();
break;
}
case LFUN_UNDO:
dr.setMessage(_("Undo"));
cur.clearSelection();
if (!cur.textUndo())
dr.setMessage(_("No further undo information"));
else
dr.screenUpdate(Update::Force | Update::FitCursor);
dr.forceBufferUpdate();
break;
case LFUN_REDO:
dr.setMessage(_("Redo"));
cur.clearSelection();
if (!cur.textRedo())
dr.setMessage(_("No further redo information"));
else
dr.screenUpdate(Update::Force | Update::FitCursor);
dr.forceBufferUpdate();
break;
case LFUN_FONT_STATE:
dr.setMessage(cur.currentState());
break;
case LFUN_BOOKMARK_SAVE:
saveBookmark(convert<unsigned int>(to_utf8(cmd.argument())));
break;
case LFUN_LABEL_GOTO: {
docstring label = cmd.argument();
if (label.empty()) {
InsetRef * inset =
getInsetByCode<InsetRef>(cur, REF_CODE);
if (inset) {
label = inset->getParam("reference");
// persistent=false: use temp_bookmark
saveBookmark(0);
}
}
if (!label.empty()) {
gotoLabel(label);
// at the moment, this is redundant, since gotoLabel will
// eventually call LFUN_PARAGRAPH_GOTO, but it seems best
// to have it here.
dr.screenUpdate(Update::Force | Update::FitCursor);
}
break;
}
case LFUN_PARAGRAPH_GOTO: {
int const id = convert<int>(cmd.getArg(0));
int const pos = convert<int>(cmd.getArg(1));
int i = 0;
for (Buffer * b = &buffer_; i == 0 || b != &buffer_;
b = theBufferList().next(b)) {
DocIterator dit = b->getParFromID(id);
if (dit.atEnd()) {
LYXERR(Debug::INFO, "No matching paragraph found! [" << id << "].");
++i;
continue;
}
LYXERR(Debug::INFO, "Paragraph " << dit.paragraph().id()
<< " found in buffer `"
<< b->absFileName() << "'.");
if (b == &buffer_) {
// Set the cursor
dit.pos() = pos;
setCursor(dit);
dr.screenUpdate(Update::Force | Update::FitCursor);
} else {
// Switch to other buffer view and resend cmd
lyx::dispatch(FuncRequest(
LFUN_BUFFER_SWITCH, b->absFileName()));
lyx::dispatch(cmd);
}
break;
}
break;
}
case LFUN_NOTE_NEXT:
gotoInset(this, NOTE_CODE, false);
break;
case LFUN_REFERENCE_NEXT: {
vector<InsetCode> tmp;
tmp.push_back(LABEL_CODE);
tmp.push_back(REF_CODE);
gotoInset(this, tmp, true);
break;
}
case LFUN_CHANGES_TRACK:
buffer_.params().trackChanges = !buffer_.params().trackChanges;
break;
case LFUN_CHANGES_OUTPUT:
buffer_.params().outputChanges = !buffer_.params().outputChanges;
if (buffer_.params().outputChanges) {
bool dvipost = LaTeXFeatures::isAvailable("dvipost");
bool xcolorulem = LaTeXFeatures::isAvailable("ulem") &&
LaTeXFeatures::isAvailable("xcolor");
if (!dvipost && !xcolorulem) {
Alert::warning(_("Changes not shown in LaTeX output"),
_("Changes will not be highlighted in LaTeX output, "
"because neither dvipost nor xcolor/ulem are installed.\n"
"Please install these packages or redefine "
"\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
} 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 ulem are not installed.\n"
"Please install both packages or redefine "
"\\lyxadded and \\lyxdeleted in the LaTeX preamble."));
}
}
break;
case LFUN_CHANGE_NEXT:
findNextChange(this);
// FIXME: Move this LFUN to Buffer so that we don't have to do this:
dr.screenUpdate(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:
dr.screenUpdate(Update::Force | Update::FitCursor);
break;
case LFUN_CHANGES_MERGE:
if (findNextChange(this) || findPreviousChange(this)) {
dr.screenUpdate(Update::Force | Update::FitCursor);
dr.forceBufferUpdate();
showDialog("changes");
}
break;
case LFUN_ALL_CHANGES_ACCEPT:
// select complete document
cur.reset();
cur.selHandle(true);
buffer_.text().cursorBottom(cur);
// accept everything in a single step to support atomic undo
buffer_.text().acceptOrRejectChanges(cur, Text::ACCEPT);
// FIXME: Move this LFUN to Buffer so that we don't have to do this:
dr.screenUpdate(Update::Force | Update::FitCursor);
dr.forceBufferUpdate();
break;
case LFUN_ALL_CHANGES_REJECT:
// select complete document
cur.reset();
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(cur, Text::REJECT);
// FIXME: Move this LFUN to Buffer so that we don't have to do this:
dr.screenUpdate(Update::Force | Update::FitCursor);
dr.forceBufferUpdate();
break;
case LFUN_WORD_FIND_FORWARD:
case LFUN_WORD_FIND_BACKWARD: {
static docstring last_search;
docstring searched_string;
if (!cmd.argument().empty()) {
last_search = cmd.argument();
searched_string = cmd.argument();
} else {
searched_string = last_search;
}
if (searched_string.empty())
break;
bool const fw = act == LFUN_WORD_FIND_FORWARD;
docstring const data =
find2string(searched_string, true, false, fw);
bool found = lyxfind(this, FuncRequest(LFUN_WORD_FIND, data));
if (found)
dr.screenUpdate(Update::Force | Update::FitCursor);
break;
}
case LFUN_WORD_FIND: {
FuncRequest req = cmd;
if (cmd.argument().empty() && !d->search_request_cache_.argument().empty())
req = d->search_request_cache_;
if (req.argument().empty()) {
lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, "findreplace"));
break;
}
if (lyxfind(this, req))
dr.screenUpdate(Update::Force | Update::FitCursor);
else
message(_("String not found!"));
d->search_request_cache_ = req;
break;
}
case LFUN_WORD_REPLACE: {
bool has_deleted = false;
if (cur.selection()) {
DocIterator beg = cur.selectionBegin();
DocIterator end = cur.selectionEnd();
if (beg.pit() == end.pit()) {
for (pos_type p = beg.pos() ; p < end.pos() ; ++p) {
if (!cur.inMathed() && cur.paragraph().isDeleted(p)) {
has_deleted = true;
break;
}
}
}
}
if (lyxreplace(this, cmd, has_deleted)) {
dr.forceBufferUpdate();
dr.screenUpdate(Update::Force | Update::FitCursor);
}
break;
}
case LFUN_WORD_FINDADV: {
FindAndReplaceOptions opt;
istringstream iss(to_utf8(cmd.argument()));
iss >> opt;
if (findAdv(this, opt)) {
dr.screenUpdate(Update::Force | Update::FitCursor);
cur.dispatched();
dispatched = true;
} else {
cur.undispatched();
dispatched = false;
}
break;
}
case LFUN_MARK_OFF:
cur.clearSelection();
dr.setMessage(from_utf8(N_("Mark off")));
break;
case LFUN_MARK_ON:
cur.clearSelection();
cur.setMark(true);
dr.setMessage(from_utf8(N_("Mark on")));
break;
case LFUN_MARK_TOGGLE:
cur.setSelection(false);
if (cur.mark()) {
cur.setMark(false);
dr.setMessage(from_utf8(N_("Mark removed")));
} else {
cur.setMark(true);
dr.setMessage(from_utf8(N_("Mark set")));
}
cur.resetAnchor();
break;
case LFUN_SCREEN_SHOW_CURSOR:
showCursor();
break;
case LFUN_SCREEN_RECENTER:
recenter();
break;
case LFUN_BIBTEX_DATABASE_ADD: {
Cursor tmpcur = cur;
findInset(tmpcur, BIBTEX_CODE, false);
InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
BIBTEX_CODE);
if (inset) {
if (inset->addDatabase(cmd.argument())) {
buffer_.invalidateBibfileCache();
dr.forceBufferUpdate();
}
}
break;
}
case LFUN_BIBTEX_DATABASE_DEL: {
Cursor tmpcur = cur;
findInset(tmpcur, BIBTEX_CODE, false);
InsetBibtex * inset = getInsetByCode<InsetBibtex>(tmpcur,
BIBTEX_CODE);
if (inset) {
if (inset->delDatabase(cmd.argument())) {
buffer_.invalidateBibfileCache();
dr.forceBufferUpdate();
}
}
break;
}
case LFUN_STATISTICS: {
DocIterator from, to;
if (cur.selection()) {
from = cur.selectionBegin();
to = cur.selectionEnd();
} else {
from = doc_iterator_begin(&buffer_);
to = doc_iterator_end(&buffer_);
}
int const words = countWords(from, to);
int const chars = countChars(from, to, false);
int const chars_blanks = countChars(from, to, true);
docstring message;
if (cur.selection())
message = _("Statistics for the selection:");
else
message = _("Statistics for the document:");
message += "\n\n";
if (words != 1)
message += bformat(_("%1$d words"), words);
else
message += _("One word");
message += "\n";
if (chars_blanks != 1)
message += bformat(_("%1$d characters (including blanks)"),
chars_blanks);
else
message += _("One character (including blanks)");
message += "\n";
if (chars != 1)
message += bformat(_("%1$d characters (excluding blanks)"),
chars);
else
message += _("One character (excluding blanks)");
Alert::information(_("Statistics"), message);
}
break;
case LFUN_BUFFER_TOGGLE_COMPRESSION:
// turn compression on/off
buffer_.params().compressed = !buffer_.params().compressed;
break;
case LFUN_BUFFER_TOGGLE_OUTPUT_SYNC:
buffer_.params().output_sync = !buffer_.params().output_sync;
break;
case LFUN_SCREEN_UP:
case LFUN_SCREEN_DOWN: {
Point p = getPos(cur);
// This code has been commented out to enable to scroll down a
// document, even if there are large insets in it (see bug #5465).
/*if (p.y_ < 0 || p.y_ > height_) {
// The cursor is off-screen so recenter before proceeding.
showCursor();
p = getPos(cur);
}*/
int const scrolled = scroll(act == LFUN_SCREEN_UP
? -height_ : height_);
if (act == LFUN_SCREEN_UP && scrolled > -height_)
p = Point(0, 0);
if (act == LFUN_SCREEN_DOWN && scrolled < height_)
p = Point(width_, height_);
Cursor old = cur;
bool const in_texted = cur.inTexted();
cur.reset();
buffer_.changed(true);
updateHoveredInset();
d->text_metrics_[&buffer_.text()].editXY(cur, p.x_, p.y_,
true, act == LFUN_SCREEN_UP);
//FIXME: what to do with cur.x_target()?
bool update = in_texted && cur.bv().checkDepm(cur, old);
cur.finishUndo();
if (update) {
dr.screenUpdate(Update::Force | Update::FitCursor);
dr.forceBufferUpdate();
}
break;
}
case LFUN_SCROLL:
lfunScroll(cmd);
dr.forceBufferUpdate();
break;
case LFUN_SCREEN_UP_SELECT: {
cur.selHandle(true);
if (isTopScreen()) {
lyx::dispatch(FuncRequest(LFUN_BUFFER_BEGIN_SELECT));
cur.finishUndo();
break;
}
int y = getPos(cur).y_;
int const ymin = y - height_ + defaultRowHeight();
while (y > ymin && cur.up())
y = getPos(cur).y_;
cur.finishUndo();
dr.screenUpdate(Update::SinglePar | Update::FitCursor);
break;
}
case LFUN_SCREEN_DOWN_SELECT: {
cur.selHandle(true);
if (isBottomScreen()) {
lyx::dispatch(FuncRequest(LFUN_BUFFER_END_SELECT));
cur.finishUndo();
break;
}
int y = getPos(cur).y_;
int const ymax = y + height_ - defaultRowHeight();
while (y < ymax && cur.down())
y = getPos(cur).y_;
cur.finishUndo();
dr.screenUpdate(Update::SinglePar | Update::FitCursor);
break;
}
// This would be in Buffer class if only Cursor did not
// require a bufferview
case LFUN_INSET_FORALL: {
docstring const name = from_utf8(cmd.getArg(0));
string const commandstr = cmd.getLongArg(1);
FuncRequest const fr = lyxaction.lookupFunc(commandstr);
// an arbitrary number to limit number of iterations
const int max_iter = 10000;
int iterations = 0;
Cursor & cur = d->cursor_;
Cursor const savecur = cur;
cur.reset();
if (!cur.nextInset())
cur.forwardInset();
cur.beginUndoGroup();
while(cur && iterations < max_iter) {
Inset * ins = cur.nextInset();
if (!ins)
break;
docstring insname = ins->name();
while (!insname.empty()) {
if (insname == name || name == from_utf8("*")) {
cur.recordUndo();
lyx::dispatch(fr, dr);
++iterations;
break;
}
size_t const i = insname.rfind(':');
if (i == string::npos)
break;
insname = insname.substr(0, i);
}
cur.forwardInset();
}
cur.endUndoGroup();
cur = savecur;
cur.fixIfBroken();
dr.screenUpdate(Update::Force);
dr.forceBufferUpdate();
if (iterations >= max_iter) {
dr.setError(true);
dr.setMessage(bformat(_("`inset-forall' interrupted because number of actions is larger than %1$d"), max_iter));
} else
dr.setMessage(bformat(_("Applied \"%1$s\" to %2$d insets"), from_utf8(commandstr), iterations));
break;
}
case LFUN_BRANCH_ADD_INSERT: {
docstring branch_name = from_utf8(cmd.getArg(0));
if (branch_name.empty())
if (!Alert::askForText(branch_name, _("Branch name")) ||
branch_name.empty())
break;
DispatchResult drtmp;
buffer_.dispatch(FuncRequest(LFUN_BRANCH_ADD, branch_name), drtmp);
if (drtmp.error()) {
Alert::warning(_("Branch already exists"), drtmp.message());
break;
}
BranchList & branch_list = buffer_.params().branchlist();
vector<docstring> const branches =
getVectorFromString(branch_name, branch_list.separator());
for (vector<docstring>::const_iterator it = branches.begin();
it != branches.end(); ++it) {
branch_name = *it;
lyx::dispatch(FuncRequest(LFUN_BRANCH_INSERT, branch_name));
}
break;
}
case LFUN_KEYMAP_OFF:
getIntl().keyMapOn(false);
break;
case LFUN_KEYMAP_PRIMARY:
getIntl().keyMapPrim();
break;
case LFUN_KEYMAP_SECONDARY:
getIntl().keyMapSec();
break;
case LFUN_KEYMAP_TOGGLE:
getIntl().toggleKeyMap();
break;
case LFUN_DIALOG_SHOW_NEW_INSET: {
string const name = cmd.getArg(0);
string data = trim(to_utf8(cmd.argument()).substr(name.size()));
if (decodeInsetParam(name, data, buffer_))
lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW, name + " " + data));
else
lyxerr << "Inset type '" << name <<
"' not recognized in LFUN_DIALOG_SHOW_NEW_INSET" << endl;
break;
}
case LFUN_CITATION_INSERT: {
if (argument.empty()) {
lyx::dispatch(FuncRequest(LFUN_DIALOG_SHOW_NEW_INSET, "citation"));
break;
}
// we can have one optional argument, delimited by '|'
// citation-insert <key>|<text_before>
// this should be enhanced to also support text_after
// and citation style
string arg = argument;
string opt1;
if (contains(argument, "|")) {
arg = token(argument, '|', 0);
opt1 = token(argument, '|', 1);
}
InsetCommandParams icp(CITE_CODE);
icp["key"] = from_utf8(arg);
if (!opt1.empty())
icp["before"] = from_utf8(opt1);
string icstr = InsetCommand::params2string(icp);
FuncRequest fr(LFUN_INSET_INSERT, icstr);
lyx::dispatch(fr);
break;
}
case LFUN_INSET_APPLY: {
string const name = cmd.getArg(0);
Inset * inset = editedInset(name);
if (!inset) {
FuncRequest fr(LFUN_INSET_INSERT, cmd.argument());
lyx::dispatch(fr);
break;
}
// put cursor in front of inset.
if (!setCursorFromInset(inset)) {
LASSERT(false, break);
}
cur.recordUndo();
FuncRequest fr(LFUN_INSET_MODIFY, cmd.argument());
inset->dispatch(cur, fr);
dr.screenUpdate(cur.result().screenUpdate());
if (cur.result().needBufferUpdate())
dr.forceBufferUpdate();
break;
}
default:
dispatched = false;
break;
}
buffer_.undo().endUndoGroup();
dr.dispatched(dispatched);
return;
}
docstring const BufferView::requestSelection()
{
Cursor & cur = d->cursor_;
LYXERR(Debug::SELECTION, "requestSelection: cur.selection: " << cur.selection());
if (!cur.selection()) {
d->xsel_cache_.set = false;
return docstring();
}
LYXERR(Debug::SELECTION, "requestSelection: xsel_cache.set: " << d->xsel_cache_.set);
if (!d->xsel_cache_.set ||
cur.top() != d->xsel_cache_.cursor ||
cur.realAnchor().top() != d->xsel_cache_.anchor)
{
d->xsel_cache_.cursor = cur.top();
d->xsel_cache_.anchor = cur.realAnchor().top();
d->xsel_cache_.set = cur.selection();
return cur.selectionAsString(false);
}
return docstring();
}
void BufferView::clearSelection()
{
d->cursor_.clearSelection();
// Clear the selection buffer. Otherwise a subsequent
// middle-mouse-button paste would use the selection buffer,
// not the more current external selection.
cap::clearSelection();
d->xsel_cache_.set = false;
// The buffer did not really change, but this causes the
// redraw we need because we cleared the selection above.
buffer_.changed(false);
}
void BufferView::resize(int width, int height)
{
// Update from work area
width_ = width;
height_ = height;
// Clear the paragraph height cache.
d->par_height_.clear();
// Redo the metrics.
updateMetrics();
}
Inset const * BufferView::getCoveringInset(Text const & text,
int x, int y) const
{
TextMetrics & tm = d->text_metrics_[&text];
Inset * inset = tm.checkInsetHit(x, y);
if (!inset)
return 0;
if (!inset->descendable(*this))
// No need to go further down if the inset is not
// descendable.
return inset;
size_t cell_number = inset->nargs();
// Check all the inner cell.
for (size_t i = 0; i != cell_number; ++i) {
Text const * inner_text = inset->getText(i);
if (inner_text) {
// Try deeper.
Inset const * inset_deeper =
getCoveringInset(*inner_text, x, y);
if (inset_deeper)
return inset_deeper;
}
}
return inset;
}
void BufferView::updateHoveredInset() const
{
// Get inset under mouse, if there is one.
int const x = d->mouse_position_cache_.x_;
int const y = d->mouse_position_cache_.y_;
Inset const * covering_inset = getCoveringInset(buffer_.text(), x, y);
d->clickable_inset_ = covering_inset && covering_inset->clickable(x, y);
if (covering_inset == d->last_inset_)
// Same inset, no need to do anything...
return;
bool need_redraw = false;
if (d->last_inset_) {
// Remove the hint on the last hovered inset (if any).
need_redraw |= d->last_inset_->setMouseHover(this, false);
d->last_inset_ = 0;
}
// const_cast because of setMouseHover().
Inset * inset = const_cast<Inset *>(covering_inset);
if (inset && inset->setMouseHover(this, true)) {
need_redraw = true;
// Only the insets that accept the hover state, do
// clear the last_inset_, so only set the last_inset_
// member if the hovered setting is accepted.
d->last_inset_ = inset;
}
if (need_redraw) {
LYXERR(Debug::PAINTING, "Mouse hover detected at: ("
<< d->mouse_position_cache_.x_ << ", "
<< d->mouse_position_cache_.y_ << ")");
d->update_strategy_ = DecorationUpdate;
// This event (moving without mouse click) is not passed further.
// This should be changed if it is further utilized.
buffer_.changed(false);
}
}
void BufferView::clearLastInset(Inset * inset) const
{
if (d->last_inset_ != inset) {
LYXERR0("Wrong last_inset!");
LASSERT(false, /**/);
}
d->last_inset_ = 0;
}
void BufferView::mouseEventDispatch(FuncRequest const & cmd0)
{
//lyxerr << "[ cmd0 " << cmd0 << "]" << endl;
// This is only called for mouse related events including
// LFUN_FILE_OPEN generated by drag-and-drop.
FuncRequest cmd = cmd0;
Cursor old = cursor();
Cursor cur(*this);
cur.push(buffer_.inset());
cur.setSelection(d->cursor_.selection());
// Either the inset under the cursor or the
// surrounding Text will handle this event.
// make sure we stay within the screen...
cmd.set_y(min(max(cmd.y(), -1), height_));
d->mouse_position_cache_.x_ = cmd.x();
d->mouse_position_cache_.y_ = cmd.y();
if (cmd.action() == LFUN_MOUSE_MOTION && cmd.button() == mouse_button::none) {
updateHoveredInset();
return;
}
// Build temporary cursor.
Inset * inset = d->text_metrics_[&buffer_.text()].editXY(cur, cmd.x(), cmd.y());
// Put anchor at the same position.
cur.resetAnchor();
cur.beginUndoGroup();
// Try to dispatch to an non-editable inset near this position
// via the temp cursor. If the inset wishes to change the real
// cursor it has to do so explicitly by using
// cur.bv().cursor() = cur; (or similar)
if (inset)
inset->dispatch(cur, cmd);
// Now dispatch to the temporary cursor. If the real cursor should
// be modified, the inset's dispatch has to do so explicitly.
if (!inset || !cur.result().dispatched())
cur.dispatch(cmd);
cur.endUndoGroup();
// Notify left insets
if (cur != old) {
old.fixIfBroken();
bool badcursor = notifyCursorLeavesOrEnters(old, cur);
if (badcursor)
cursor().fixIfBroken();
}
// Do we have a selection?
theSelection().haveSelection(cursor().selection());
// If the command has been dispatched,
if (cur.result().dispatched() || cur.result().screenUpdate())
processUpdateFlags(cur.result().screenUpdate());
}
void BufferView::lfunScroll(FuncRequest const & cmd)
{
string const scroll_type = cmd.getArg(0);
int scroll_step = 0;
if (scroll_type == "line")
scroll_step = d->scrollbarParameters_.single_step;
else if (scroll_type == "page")
scroll_step = d->scrollbarParameters_.page_step;
else
return;
string const scroll_quantity = cmd.getArg(1);
if (scroll_quantity == "up")
scrollUp(scroll_step);
else if (scroll_quantity == "down")
scrollDown(scroll_step);
else {
int const scroll_value = convert<int>(scroll_quantity);
if (scroll_value)
scroll(scroll_step * scroll_value);
}
buffer_.changed(true);
updateHoveredInset();
}
int BufferView::minVisiblePart()
{
return 2 * defaultRowHeight();
}
int BufferView::scroll(int y)
{
if (y > 0)
return scrollDown(y);
if (y < 0)
return scrollUp(-y);
return 0;
}
int BufferView::scrollDown(int offset)
{
Text * text = &buffer_.text();
TextMetrics & tm = d->text_metrics_[text];
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;
offset = min(offset, bottom_pos - height_);
break;
}
if (bottom_pos > ymax)
break;
tm.newParMetricsDown();
}
d->anchor_ypos_ -= offset;
return -offset;
}
int BufferView::scrollUp(int offset)
{
Text * text = &buffer_.text();
TextMetrics & tm = d->text_metrics_[text];
int ymin = - offset;
while (true) {
pair<pit_type, ParagraphMetrics const *> first = tm.first();
int top_pos = first.second->position() - first.second->ascent();
if (first.first == 0) {
if (top_pos >= 0)
return 0;
offset = min(offset, - top_pos);
break;
}
if (top_pos < ymin)
break;
tm.newParMetricsUp();
}
d->anchor_ypos_ += offset;
return offset;
}
void BufferView::setCursorFromRow(int row)
{
int tmpid = -1;
int tmppos = -1;
buffer_.texrow().getIdFromRow(row, tmpid, tmppos);
d->cursor_.reset();
if (tmpid == -1)
buffer_.text().setCursor(d->cursor_, 0, 0);
else
buffer_.text().setCursor(d->cursor_, buffer_.getParFromID(tmpid).pit(), tmppos);
recenter();
}
bool BufferView::setCursorFromInset(Inset const * inset)
{
// are we already there?
if (cursor().nextInset() == inset)
return true;
// Inset is not at cursor position. Find it in the document.
Cursor cur(*this);
cur.reset();
while (cur && cur.nextInset() != inset)
cur.forwardInset();
if (cur) {
setCursor(cur);
return true;
}
return false;
}
void BufferView::gotoLabel(docstring const & label)
{
ListOfBuffers bufs = buffer().allRelatives();
ListOfBuffers::iterator it = bufs.begin();
for (; it != bufs.end(); ++it) {
Buffer const * buf = *it;
// find label
Toc & toc = buf->tocBackend().toc("label");
TocIterator toc_it = toc.begin();
TocIterator end = toc.end();
for (; toc_it != end; ++toc_it) {
if (label == toc_it->str()) {
lyx::dispatch(toc_it->action());
return;
}
}
}
}
TextMetrics const & BufferView::textMetrics(Text const * t) const
{
return const_cast<BufferView *>(this)->textMetrics(t);
}
TextMetrics & BufferView::textMetrics(Text const * t)
{
TextMetricsCache::iterator tmc_it = d->text_metrics_.find(t);
if (tmc_it == d->text_metrics_.end()) {
tmc_it = d->text_metrics_.insert(
make_pair(t, TextMetrics(this, const_cast<Text *>(t)))).first;
}
return tmc_it->second;
}
ParagraphMetrics const & BufferView::parMetrics(Text const * t,
pit_type pit) const
{
return textMetrics(t).parMetrics(pit);
}
int BufferView::workHeight() const
{
return height_;
}
void BufferView::setCursor(DocIterator const & dit)
{
d->cursor_.reset();
size_t const n = dit.depth();
for (size_t i = 0; i < n; ++i)
dit[i].inset().edit(d->cursor_, true);
d->cursor_.setCursor(dit);
d->cursor_.setSelection(false);
}
bool BufferView::checkDepm(Cursor & cur, Cursor & old)
{
// Would be wrong to delete anything if we have a selection.
if (cur.selection())
return false;
bool need_anchor_change = false;
bool changed = d->cursor_.text()->deleteEmptyParagraphMechanism(cur, old,
need_anchor_change);
if (need_anchor_change)
cur.resetAnchor();
if (!changed)
return false;
d->cursor_ = cur;
cur.forceBufferUpdate();
buffer_.changed(true);
return true;
}
bool BufferView::mouseSetCursor(Cursor & cur, bool select)
{
LASSERT(&cur.bv() == this, /**/);
if (!select)
// this event will clear selection so we save selection for
// persistent selection
cap::saveSelection(cursor());
d->cursor_.macroModeClose();
// Has the cursor just left the inset?
bool 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();
// do the dEPM magic if needed
// FIXME: (1) move this to InsetText::notifyCursorLeaves?
// FIXME: (2) if we had a working InsetText::notifyCursorLeaves,
// the leftinset bool would not be necessary (badcursor instead).
bool update = leftinset;
if (!do_selection && d->cursor_.inTexted())
update |= checkDepm(cur, d->cursor_);
if (!do_selection)
d->cursor_.resetAnchor();
d->cursor_.setCursor(cur);
d->cursor_.boundary(cur.boundary());
if (do_selection)
d->cursor_.setSelection();
else
d->cursor_.clearSelection();
d->cursor_.finishUndo();
d->cursor_.setCurrentFont();
if (update)
cur.forceBufferUpdate();
return update;
}
void BufferView::putSelectionAt(DocIterator const & cur,
int length, bool backwards)
{
d->cursor_.clearSelection();
setCursor(cur);
if (length) {
if (backwards) {
d->cursor_.pos() += length;
d->cursor_.setSelection(d->cursor_, -length);
} else
d->cursor_.setSelection(d->cursor_, length);
}
}
Cursor & BufferView::cursor()
{
return d->cursor_;
}
Cursor const & BufferView::cursor() const
{
return d->cursor_;
}
pit_type BufferView::anchor_ref() const
{
return d->anchor_pit_;
}
bool BufferView::singleParUpdate()
{
Text & buftext = buffer_.text();
pit_type const bottom_pit = d->cursor_.bottom().pit();
TextMetrics & tm = textMetrics(&buftext);
int old_height = tm.parMetrics(bottom_pit).height();
// make sure inline completion pointer is ok
if (d->inlineCompletionPos_.fixIfBroken())
d->inlineCompletionPos_ = DocIterator();
// In Single Paragraph mode, rebreak only
// the (main text, not inset!) paragraph containing the cursor.
// (if this paragraph contains insets etc., rebreaking will
// recursively descend)
tm.redoParagraph(bottom_pit);
ParagraphMetrics const & pm = tm.parMetrics(bottom_pit);
if (pm.height() != old_height)
// Paragraph height has changed so we cannot proceed to
// the singlePar optimisation.
return false;
d->update_strategy_ = SingleParUpdate;
LYXERR(Debug::PAINTING, "\ny1: " << pm.position() - pm.ascent()
<< " y2: " << pm.position() + pm.descent()
<< " pit: " << bottom_pit
<< " singlepar: 1");
return true;
}
void BufferView::updateMetrics()
{
if (height_ == 0 || width_ == 0)
return;
Text & buftext = buffer_.text();
pit_type const npit = int(buftext.paragraphs().size());
// Clear out the position cache in case of full screen redraw,
d->coord_cache_.clear();
// Clear out paragraph metrics to avoid having invalid metrics
// in the cache from paragraphs not relayouted below
// The complete text metrics will be redone.
d->text_metrics_.clear();
TextMetrics & tm = textMetrics(&buftext);
// make sure inline completion pointer is ok
if (d->inlineCompletionPos_.fixIfBroken())
d->inlineCompletionPos_ = DocIterator();
if (d->anchor_pit_ >= npit)
// The anchor pit must have been deleted...
d->anchor_pit_ = npit - 1;
// Rebreak anchor paragraph.
tm.redoParagraph(d->anchor_pit_);
ParagraphMetrics & anchor_pm = tm.par_metrics_[d->anchor_pit_];
// position anchor
if (d->anchor_pit_ == 0) {
int scrollRange = d->scrollbarParameters_.max - d->scrollbarParameters_.min;
// Complete buffer visible? Then it's easy.
if (scrollRange == 0)
d->anchor_ypos_ = anchor_pm.ascent();
// FIXME: Some clever handling needed to show
// the _first_ paragraph up to the top if the cursor is
// in the first line.
}
anchor_pm.setPosition(d->anchor_ypos_);
LYXERR(Debug::PAINTING, "metrics: "
<< " anchor pit = " << d->anchor_pit_
<< " anchor ypos = " << d->anchor_ypos_);
// Redo paragraphs above anchor if necessary.
int y1 = d->anchor_ypos_ - anchor_pm.ascent();
// We are now just above the anchor paragraph.
pit_type pit1 = d->anchor_pit_ - 1;
for (; pit1 >= 0 && y1 >= 0; --pit1) {
tm.redoParagraph(pit1);
ParagraphMetrics & pm = tm.par_metrics_[pit1];
y1 -= pm.descent();
// Save the paragraph position in the cache.
pm.setPosition(y1);
y1 -= pm.ascent();
}
// Redo paragraphs below the anchor if necessary.
int y2 = d->anchor_ypos_ + anchor_pm.descent();
// We are now just below the anchor paragraph.
pit_type pit2 = d->anchor_pit_ + 1;
for (; pit2 < npit && y2 <= height_; ++pit2) {
tm.redoParagraph(pit2);
ParagraphMetrics & pm = tm.par_metrics_[pit2];
y2 += pm.ascent();
// Save the paragraph position in the cache.
pm.setPosition(y2);
y2 += pm.descent();
}
LYXERR(Debug::PAINTING, "Metrics: "
<< " anchor pit = " << d->anchor_pit_
<< " anchor ypos = " << d->anchor_ypos_
<< " y1 = " << y1
<< " y2 = " << y2
<< " pit1 = " << pit1
<< " pit2 = " << pit2);
d->update_strategy_ = FullScreenUpdate;
if (lyxerr.debugging(Debug::WORKAREA)) {
LYXERR(Debug::WORKAREA, "BufferView::updateMetrics");
d->coord_cache_.dump();
}
}
void BufferView::insertLyXFile(FileName const & fname)
{
LASSERT(d->cursor_.inTexted(), /**/);
// Get absolute path of file and add ".lyx"
// to the filename if necessary
FileName filename = fileSearch(string(), fname.absFileName(), "lyx");
docstring const disp_fn = makeDisplayPath(filename.absFileName());
// emit message signal.
message(bformat(_("Inserting document %1$s..."), disp_fn));
docstring res;
Buffer buf(filename.absFileName(), false);
if (buf.loadLyXFile() == Buffer::ReadSuccess) {
ErrorList & el = buffer_.errorList("Parse");
// Copy the inserted document error list into the current buffer one.
el = buf.errorList("Parse");
buffer_.undo().recordUndo(d->cursor_);
cap::pasteParagraphList(d->cursor_, buf.paragraphs(),
buf.params().documentClassPtr(), el);
res = _("Document %1$s inserted.");
} else {
res = _("Could not insert document %1$s");
}
buffer_.changed(true);
// emit message signal.
message(bformat(res, disp_fn));
}
Point BufferView::coordOffset(DocIterator const & dit) const
{
int x = 0;
int y = 0;
int lastw = 0;
// Addup contribution of nested insets, from inside to outside,
// keeping the outer paragraph for a special handling below
for (size_t i = dit.depth() - 1; i >= 1; --i) {
CursorSlice const & sl = dit[i];
int xx = 0;
int yy = 0;
// get relative position inside sl.inset()
sl.inset().cursorPos(*this, sl, dit.boundary() && (i + 1 == dit.depth()), xx, yy);
// Make relative position inside of the edited inset relative to sl.inset()
x += xx;
y += yy;
// In case of an RTL inset, the edited inset will be positioned to the left
// of xx:yy
if (sl.text()) {
bool boundary_i = dit.boundary() && i + 1 == dit.depth();
bool rtl = textMetrics(sl.text()).isRTL(sl, boundary_i);
if (rtl)
x -= lastw;
}
// remember width for the case that sl.inset() is positioned in an RTL inset
if (i && dit[i - 1].text()) {
// If this Inset is inside a Text Inset, retrieve the Dimension
// from the containing text instead of using Inset::dimension() which
// might not be implemented.
// FIXME (Abdel 23/09/2007): this is a bit messy because of the
// elimination of Inset::dim_ cache. This coordOffset() method needs
// to be rewritten in light of the new design.
Dimension const & dim = parMetrics(dit[i - 1].text(),
dit[i - 1].pit()).insetDimension(&sl.inset());
lastw = dim.wid;
} else {
Dimension const dim = sl.inset().dimension(*this);
lastw = dim.wid;
}
//lyxerr << "Cursor::getPos, i: "
// << i << " x: " << xx << " y: " << y << endl;
}
// Add contribution of initial rows of outermost paragraph
CursorSlice const & sl = dit[0];
TextMetrics const & tm = textMetrics(sl.text());
ParagraphMetrics const & pm = tm.parMetrics(sl.pit());
LASSERT(!pm.rows().empty(), /**/);
y -= pm.rows()[0].ascent();
#if 1
// FIXME: document this mess
size_t rend;
if (sl.pos() > 0 && dit.depth() == 1) {
int pos = sl.pos();
if (pos && dit.boundary())
--pos;
// lyxerr << "coordOffset: boundary:" << dit.boundary() << " depth:" << dit.depth() << " pos:" << pos << " sl.pos:" << sl.pos() << endl;
rend = pm.pos2row(pos);
} else
rend = pm.pos2row(sl.pos());
#else
size_t rend = pm.pos2row(sl.pos());
#endif
for (size_t rit = 0; rit != rend; ++rit)
y += pm.rows()[rit].height();
y += pm.rows()[rend].ascent();
TextMetrics const & bottom_tm = textMetrics(dit.bottom().text());
// Make relative position from the nested inset now bufferview absolute.
int xx = bottom_tm.cursorX(dit.bottom(), dit.boundary() && dit.depth() == 1);
x += xx;
// In the RTL case place the nested inset at the left of the cursor in
// the outer paragraph
bool boundary_1 = dit.boundary() && 1 == dit.depth();
bool rtl = bottom_tm.isRTL(dit.bottom(), boundary_1);
if (rtl)
x -= lastw;
return Point(x, y);
}
Point BufferView::getPos(DocIterator const & dit) const
{
if (!paragraphVisible(dit))
return Point(-1, -1);
CursorSlice const & bot = dit.bottom();
TextMetrics const & tm = textMetrics(bot.text());
// offset from outer paragraph
Point p = coordOffset(dit);
p.y_ += tm.parMetrics(bot.pit()).position();
return p;
}
bool BufferView::paragraphVisible(DocIterator const & dit) const
{
CursorSlice const & bot = dit.bottom();
TextMetrics const & tm = textMetrics(bot.text());
return tm.contains(bot.pit());
}
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);
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)
return;
LYXERR(Debug::PAINTING, "\t\t*** START DRAWING ***");
Text & text = buffer_.text();
TextMetrics const & tm = d->text_metrics_[&text];
int const y = tm.first().second->position();
PainterInfo pi(this, pain);
switch (d->update_strategy_) {
case NoScreenUpdate:
// If no screen painting is actually needed, only some the different
// coordinates of insets and paragraphs needs to be updated.
pi.full_repaint = true;
pi.pain.setDrawingEnabled(false);
tm.draw(pi, 0, y);
break;
case SingleParUpdate:
pi.full_repaint = false;
// In general, only the current row of the outermost paragraph
// will be redrawn. Particular cases where selection spans
// multiple paragraph are correctly detected in TextMetrics.
tm.draw(pi, 0, y);
break;
case DecorationUpdate:
// FIXME: We should also distinguish DecorationUpdate to avoid text
// drawing if possible. This is not possible to do easily right now
// because of the single backing pixmap.
case FullScreenUpdate:
// The whole screen, including insets, will be refreshed.
pi.full_repaint = true;
// Clear background.
pain.fillRectangle(0, 0, width_, height_,
pi.backgroundColor(&buffer_.inset()));
// Draw everything.
tm.draw(pi, 0, y);
// and possibly grey out below
pair<pit_type, ParagraphMetrics const *> lastpm = tm.last();
int const y2 = lastpm.second->position() + lastpm.second->descent();
if (y2 < height_) {
Color color = buffer().isInternal()
? Color_background : Color_bottomarea;
pain.fillRectangle(0, y2, width_, height_ - y2, color);
}
break;
}
LYXERR(Debug::PAINTING, "\n\t\t*** END DRAWING ***");
// The scrollbar needs an update.
updateScrollbar();
// Normalize anchor for next time
pair<pit_type, ParagraphMetrics const *> firstpm = tm.first();
pair<pit_type, ParagraphMetrics const *> lastpm = tm.last();
for (pit_type pit = firstpm.first; pit <= lastpm.first; ++pit) {
ParagraphMetrics const & pm = tm.parMetrics(pit);
if (pm.position() + pm.descent() > 0) {
d->anchor_pit_ = pit;
d->anchor_ypos_ = pm.position();
break;
}
}
LYXERR(Debug::PAINTING, "Found new anchor pit = " << d->anchor_pit_
<< " anchor ypos = " << d->anchor_ypos_);
}
void BufferView::message(docstring const & msg)
{
if (d->gui_)
d->gui_->message(msg);
}
void BufferView::showDialog(string const & name)
{
if (d->gui_)
d->gui_->showDialog(name, string());
}
void BufferView::showDialog(string const & name,
string const & data, Inset * inset)
{
if (d->gui_)
d->gui_->showDialog(name, data, inset);
}
void BufferView::updateDialog(string const & name, string const & data)
{
if (d->gui_)
d->gui_->updateDialog(name, data);
}
void BufferView::setGuiDelegate(frontend::GuiBufferViewDelegate * gui)
{
d->gui_ = gui;
}
// FIXME: Move this out of BufferView again
docstring BufferView::contentsOfPlaintextFile(FileName const & fname)
{
if (!fname.isReadableFile()) {
docstring const error = from_ascii(strerror(errno));
docstring const file = makeDisplayPath(fname.absFileName(), 50);
docstring const text =
bformat(_("Could not read the specified document\n"
"%1$s\ndue to the error: %2$s"), file, error);
Alert::error(_("Could not read file"), text);
return docstring();
}
if (!fname.isReadableFile()) {
docstring const file = makeDisplayPath(fname.absFileName(), 50);
docstring const text =
bformat(_("%1$s\n is not readable."), file);
Alert::error(_("Could not open file"), text);
return docstring();
}
// FIXME UNICODE: We don't know the encoding of the file
docstring file_content = fname.fileContents("UTF-8");
if (file_content.empty()) {
Alert::error(_("Reading not UTF-8 encoded file"),
_("The file is not UTF-8 encoded.\n"
"It will be read as local 8Bit-encoded.\n"
"If this does not give the correct result\n"
"then please change the encoding of the file\n"
"to UTF-8 with a program other than LyX.\n"));
file_content = fname.fileContents("local8bit");
}
return normalize_c(file_content);
}
void BufferView::insertPlaintextFile(FileName const & f, bool asParagraph)
{
docstring const tmpstr = contentsOfPlaintextFile(f);
if (tmpstr.empty())
return;
Cursor & cur = cursor();
cap::replaceSelection(cur);
buffer_.undo().recordUndo(cur);
if (asParagraph)
cur.innerText()->insertStringAsParagraphs(cur, tmpstr, cur.current_font);
else
cur.innerText()->insertStringAsLines(cur, tmpstr, cur.current_font);
buffer_.changed(true);
}
docstring const & BufferView::inlineCompletion() const
{
return d->inlineCompletion_;
}
size_t const & BufferView::inlineCompletionUniqueChars() const
{
return d->inlineCompletionUniqueChars_;
}
DocIterator const & BufferView::inlineCompletionPos() const
{
return d->inlineCompletionPos_;
}
bool samePar(DocIterator const & a, DocIterator const & b)
{
if (a.empty() && b.empty())
return true;
if (a.empty() || b.empty())
return false;
if (a.depth() != b.depth())
return false;
return &a.innerParagraph() == &b.innerParagraph();
}
void BufferView::setInlineCompletion(Cursor & cur, DocIterator const & pos,
docstring const & completion, size_t uniqueChars)
{
uniqueChars = min(completion.size(), uniqueChars);
bool changed = d->inlineCompletion_ != completion
|| d->inlineCompletionUniqueChars_ != uniqueChars;
bool singlePar = true;
d->inlineCompletion_ = completion;
d->inlineCompletionUniqueChars_ = min(completion.size(), uniqueChars);
//lyxerr << "setInlineCompletion pos=" << pos << " completion=" << completion << " uniqueChars=" << uniqueChars << std::endl;
// at new position?
DocIterator const & old = d->inlineCompletionPos_;
if (old != pos) {
//lyxerr << "inlineCompletionPos changed" << std::endl;
// old or pos are in another paragraph?
if ((!samePar(cur, pos) && !pos.empty())
|| (!samePar(cur, old) && !old.empty())) {
singlePar = false;
//lyxerr << "different paragraph" << std::endl;
}
d->inlineCompletionPos_ = pos;
}
// set update flags
if (changed) {
if (singlePar && !(cur.result().screenUpdate() & Update::Force))
cur.screenUpdateFlags(cur.result().screenUpdate() | Update::SinglePar);
else
cur.screenUpdateFlags(cur.result().screenUpdate() | Update::Force);
}
}
bool BufferView::clickableInset() const
{
return d->clickable_inset_;
}
} // namespace lyx
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