lyx_mirror/src/bufferview_funcs.C

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/**
* \file bufferview_funcs.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Lars Gullik Bj<EFBFBD>nnes
* \author Jean-Marc Lasgouttes
* \author John Levon
* \author Angus Leeming
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "bufferview_funcs.h"
#include "author.h"
#include "buffer.h"
#include "bufferparams.h"
#include "BufferView.h"
#include "gettext.h"
#include "language.h"
#include "LColor.h"
#include "lyxlex.h"
#include "lyxrow.h"
#include "paragraph.h"
#include "ParagraphParameters.h"
#include "PosIterator.h"
#include "iterators.h"
#include "frontends/Alert.h"
#include "frontends/LyXView.h"
#include "insets/insettext.h"
#include "mathed/math_cursor.h"
#include "support/tostr.h"
#include "support/std_sstream.h"
using lyx::support::bformat;
using std::istringstream;
using std::ostringstream;
using std::string;
namespace {
LyXFont freefont(LyXFont::ALL_IGNORE);
bool toggleall(false);
}
namespace bv_funcs {
// Set data using font and toggle
// If successful, returns true
bool font2string(LyXFont const & font, bool toggle, string & data)
{
string lang = "ignore";
if (font.language())
lang = font.language()->lang();
ostringstream os;
os << "family " << font.family() << '\n'
<< "series " << font.series() << '\n'
<< "shape " << font.shape() << '\n'
<< "size " << font.size() << '\n'
<< "emph " << font.emph() << '\n'
<< "underbar " << font.underbar() << '\n'
<< "noun " << font.noun() << '\n'
<< "number " << font.number() << '\n'
<< "color " << font.color() << '\n'
<< "language " << lang << '\n'
<< "toggleall " << tostr(toggle);
data = os.str();
return true;
}
// Set font and toggle using data
// If successful, returns true
bool string2font(string const & data, LyXFont & font, bool & toggle)
{
istringstream is(data);
LyXLex lex(0,0);
lex.setStream(is);
int nset = 0;
while (lex.isOK()) {
string token;
if (lex.next())
token = lex.getString();
if (token.empty() || !lex.next())
break;
if (token == "family") {
int const next = lex.getInteger();
font.setFamily(LyXFont::FONT_FAMILY(next));
} else if (token == "series") {
int const next = lex.getInteger();
font.setSeries(LyXFont::FONT_SERIES(next));
} else if (token == "shape") {
int const next = lex.getInteger();
font.setShape(LyXFont::FONT_SHAPE(next));
} else if (token == "size") {
int const next = lex.getInteger();
font.setSize(LyXFont::FONT_SIZE(next));
} else if (token == "emph" || token == "underbar" ||
token == "noun" || token == "number") {
int const next = lex.getInteger();
LyXFont::FONT_MISC_STATE const misc =
LyXFont::FONT_MISC_STATE(next);
if (token == "emph")
font.setEmph(misc);
else if (token == "underbar")
font.setUnderbar(misc);
else if (token == "noun")
font.setNoun(misc);
else if (token == "number")
font.setNumber(misc);
} else if (token == "color") {
int const next = lex.getInteger();
font.setColor(LColor::color(next));
} else if (token == "language") {
string const next = lex.getString();
if (next == "ignore")
font.setLanguage(ignore_language);
else
font.setLanguage(languages.getLanguage(next));
} else if (token == "toggleall") {
toggle = lex.getBool();
} else {
// Unrecognised token
break;
}
++nset;
}
return (nset > 0);
}
string const freefont2string()
{
string data;
if (font2string(freefont, toggleall, data))
return data;
return string();
}
void update_and_apply_freefont(BufferView * bv, string const & data)
{
LyXFont font;
bool toggle;
if (string2font(data, font, toggle)) {
freefont = font;
toggleall = toggle;
apply_freefont(bv);
}
}
void apply_freefont(BufferView * bv)
{
toggleAndShow(bv, freefont, toggleall);
bv->owner()->view_state_changed();
bv->owner()->message(_("Character set"));
}
void emph(BufferView * bv)
{
LyXFont font(LyXFont::ALL_IGNORE);
font.setEmph(LyXFont::TOGGLE);
toggleAndShow(bv, font);
}
void bold(BufferView * bv)
{
LyXFont font(LyXFont::ALL_IGNORE);
font.setSeries(LyXFont::BOLD_SERIES);
toggleAndShow(bv, font);
}
void noun(BufferView * bv)
{
LyXFont font(LyXFont::ALL_IGNORE);
font.setNoun(LyXFont::TOGGLE);
toggleAndShow(bv, font);
}
void number(BufferView * bv)
{
LyXFont font(LyXFont::ALL_IGNORE);
font.setNumber(LyXFont::TOGGLE);
toggleAndShow(bv, font);
}
void lang(BufferView * bv, string const & l)
{
Language const * lang = languages.getLanguage(l);
if (!lang)
return;
LyXFont font(LyXFont::ALL_IGNORE);
font.setLanguage(lang);
toggleAndShow(bv, font);
}
bool changeDepth(BufferView * bv, LyXText * text, DEPTH_CHANGE type, bool test_only)
{
if (!bv->available() || !text)
return false;
if (test_only)
return text->changeDepth(type, true);
bool const changed = text->changeDepth(type, false);
if (text->inset_owner)
bv->updateInset(text->inset_owner);
return changed;
}
void code(BufferView * bv)
{
LyXFont font(LyXFont::ALL_IGNORE);
font.setFamily(LyXFont::TYPEWRITER_FAMILY); // no good
toggleAndShow(bv, font);
}
void sans(BufferView * bv)
{
LyXFont font(LyXFont::ALL_IGNORE);
font.setFamily(LyXFont::SANS_FAMILY);
toggleAndShow(bv, font);
}
void roman(BufferView * bv)
{
LyXFont font(LyXFont::ALL_IGNORE);
font.setFamily(LyXFont::ROMAN_FAMILY);
toggleAndShow(bv, font);
}
void styleReset(BufferView * bv)
{
LyXFont font(LyXFont::ALL_INHERIT, ignore_language);
toggleAndShow(bv, font);
}
void underline(BufferView * bv)
{
LyXFont font(LyXFont::ALL_IGNORE);
font.setUnderbar(LyXFont::TOGGLE);
toggleAndShow(bv, font);
}
void fontSize(BufferView * bv, string const & size)
{
LyXFont font(LyXFont::ALL_IGNORE);
font.setLyXSize(size);
toggleAndShow(bv, font);
}
// Returns the current font and depth as a message.
string const currentState(BufferView * bv)
{
if (!bv->available())
return string();
if (mathcursor)
return mathcursor->info();
ostringstream state;
LyXText * text = bv->getLyXText();
Buffer * buffer = bv->buffer();
LyXCursor const & c = text->cursor;
bool const show_change = buffer->params().tracking_changes
&& text->cursor.pos() != text->cursorPar()->size()
&& text->cursorPar()->lookupChange(c.pos()) != Change::UNCHANGED;
if (show_change) {
Change change = text->cursorPar()->lookupChangeFull(c.pos());
Author const & a = bv->buffer()->params().authors().get(change.author);
state << _("Change: ") << a.name();
if (!a.email().empty())
state << " (" << a.email() << ")";
if (change.changetime)
state << _(" at ") << ctime(&change.changetime);
state << " : ";
}
// I think we should only show changes from the default
// font. (Asger)
LyXFont font = text->real_current_font;
font.reduce(buffer->params().getLyXTextClass().defaultfont());
// avoid _(...) re-entrance problem
string const s = font.stateText(&buffer->params());
state << bformat(_("Font: %1$s"), s);
// state << bformat(_("Font: %1$s"), font.stateText(&buffer->params));
// The paragraph depth
int depth = text->getDepth();
if (depth > 0)
state << bformat(_(", Depth: %1$s"), tostr(depth));
// The paragraph spacing, but only if different from
// buffer spacing.
if (!text->cursorPar()->params().spacing().isDefault()) {
Spacing::Space cur_space =
text->cursorPar()->params().spacing().getSpace();
state << _(", Spacing: ");
switch (cur_space) {
case Spacing::Single:
state << _("Single");
break;
case Spacing::Onehalf:
state << _("OneHalf");
break;
case Spacing::Double:
state << _("Double");
break;
case Spacing::Other:
state << _("Other (")
<< text->cursorPar()->params().spacing().getValue()
<< ')';
break;
case Spacing::Default:
// should never happen, do nothing
break;
}
}
#ifdef DEVEL_VERSION
ParagraphList::iterator pit = text->cursorPar();
state << _(", Paragraph: ") << pit->id();
state << _(", Position: ") << text->cursor.pos();
RowList::iterator rit = pit->getRow(text->cursor.pos());
state << bformat(_(", Row b:%1$d e:%2$d"), rit->pos(), rit->endpos());
state << _(", Inset: ");
InsetOld * inset = pit->inInset();
if (inset)
state << inset
<< " text: " << inset->getLyXText(bv, true)
<< " owner: " << inset->owner();
else
state << -1;
#endif
return state.str();
}
/* Does the actual toggle job of the calls above.
* Also shows the current font state.
*/
void toggleAndShow(BufferView * bv, LyXFont const & font, bool toggleall)
{
if (!bv->available())
return;
if (bv->theLockingInset()) {
bv->theLockingInset()->setFont(bv, font, toggleall);
return;
}
LyXText * text = bv->getLyXText();
text->toggleFree(font, toggleall);
bv->update();
if (font.language() != ignore_language ||
font.number() != LyXFont::IGNORE) {
LyXCursor & cursor = text->cursor;
Paragraph & par = *text->cursorPar();
text->bidi.computeTables(par, *bv->buffer(),
*par.getRow(cursor.pos()));
if (cursor.boundary() !=
text->bidi.isBoundary(*bv->buffer(), par,
cursor.pos(),
text->real_current_font))
text->setCursor(cursor.par(), cursor.pos(),
false, !cursor.boundary());
}
}
// deletes a selection during an insertion
void replaceSelection(LyXText * text)
{
if (text->selection.set()) {
text->cutSelection(true, false);
text->bv()->update();
}
}
void put_selection_at(BufferView * bv, PosIterator const & cur,
int length, bool backwards)
{
ParIterator par = bv->buffer()->par_iterator_begin();
for (; par.pit() != cur.pit(); ++par)
;
bv->getLyXText()->clearSelection();
LyXText * text = par.text(bv);
par.lockPath(bv);
text->setCursor(cur.pit(), cur.pos());
if (length) {
text->setSelectionRange(length);
text->setSelection();
if (backwards)
text->cursor = text->selection.start;
}
bv->fitCursor();
bv->update();
}
}; // namespace bv_funcs