lyx_mirror/src/insets/InsetInfo.cpp
2015-12-11 08:51:37 +01:00

514 lines
12 KiB
C++

/**
* \file InsetInfo.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Bo Peng
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "InsetInfo.h"
#include "LyX.h"
#include "Buffer.h"
#include "BufferParams.h"
#include "BufferView.h"
#include "CutAndPaste.h"
#include "FuncRequest.h"
#include "FuncStatus.h"
#include "InsetGraphics.h"
#include "InsetSpecialChar.h"
#include "KeyMap.h"
#include "LaTeXFeatures.h"
#include "LayoutFile.h"
#include "Length.h"
#include "LyXAction.h"
#include "LyXRC.h"
#include "LyXVC.h"
#include "Lexer.h"
#include "ParagraphParameters.h"
#include "version.h"
#include "frontends/Application.h"
#include "support/convert.h"
#include "support/debug.h"
#include "support/docstream.h"
#include "support/docstring_list.h"
#include "support/ExceptionMessage.h"
#include "support/FileName.h"
#include "support/filetools.h"
#include "support/gettext.h"
#include "support/lstrings.h"
#include "support/qstring_helpers.h"
#include "support/Translator.h"
#include <sstream>
#include <QtGui/QImage>
using namespace std;
using namespace lyx::support;
namespace lyx {
namespace {
typedef Translator<InsetInfo::info_type, string> NameTranslator;
NameTranslator const initTranslator()
{
NameTranslator translator(InsetInfo::UNKNOWN_INFO, "unknown");
translator.addPair(InsetInfo::SHORTCUTS_INFO, "shortcuts");
translator.addPair(InsetInfo::SHORTCUT_INFO, "shortcut");
translator.addPair(InsetInfo::LYXRC_INFO, "lyxrc");
translator.addPair(InsetInfo::PACKAGE_INFO, "package");
translator.addPair(InsetInfo::TEXTCLASS_INFO, "textclass");
translator.addPair(InsetInfo::MENU_INFO, "menu");
translator.addPair(InsetInfo::ICON_INFO, "icon");
translator.addPair(InsetInfo::BUFFER_INFO, "buffer");
translator.addPair(InsetInfo::LYX_INFO, "lyxinfo");
return translator;
}
/// The translator between the information type enum and corresponding string.
NameTranslator const & nameTranslator()
{
static NameTranslator const translator = initTranslator();
return translator;
}
} // namespace anon
/////////////////////////////////////////////////////////////////////////
//
// InsetInfo
//
/////////////////////////////////////////////////////////////////////////
InsetInfo::InsetInfo(Buffer * buf, string const & name)
: InsetCollapsable(buf), type_(UNKNOWN_INFO), name_()
{
setInfo(name);
status_ = Collapsed;
}
Inset * InsetInfo::editXY(Cursor & cur, int x, int y)
{
// do not allow the cursor to be set in this Inset
return Inset::editXY(cur, x, y);
}
string InsetInfo::infoType() const
{
return nameTranslator().find(type_);
}
docstring InsetInfo::layoutName() const
{
return from_ascii("Info:" + infoType());
}
docstring InsetInfo::toolTip(BufferView const &, int, int) const
{
return bformat(_("Information regarding %1$s '%2$s'"),
_(infoType()), from_utf8(name_));
}
void InsetInfo::read(Lexer & lex)
{
string token;
while (lex.isOK()) {
lex.next();
token = lex.getString();
if (token == "type") {
lex.next();
token = lex.getString();
type_ = nameTranslator().find(token);
} else if (token == "arg") {
lex.next(true);
name_ = lex.getString();
} else if (token == "\\end_inset")
break;
}
if (token != "\\end_inset") {
lex.printError("Missing \\end_inset at this point");
throw ExceptionMessage(WarningException,
_("Missing \\end_inset at this point."),
from_utf8(token));
}
updateInfo();
}
void InsetInfo::write(ostream & os) const
{
os << "Info\ntype \"" << infoType()
<< "\"\narg " << Lexer::quoteString(name_);
}
bool InsetInfo::validateModifyArgument(docstring const & arg) const
{
string type;
string const name = trim(split(to_utf8(arg), type, ' '));
switch (nameTranslator().find(type)) {
case UNKNOWN_INFO:
return false;
case SHORTCUT_INFO:
case SHORTCUTS_INFO:
case MENU_INFO: {
FuncRequest func = lyxaction.lookupFunc(name);
return func.action() != LFUN_UNKNOWN_ACTION;
}
case ICON_INFO: {
FuncCode const action = lyxaction.lookupFunc(name).action();
if (action == LFUN_UNKNOWN_ACTION) {
string dir = "images";
return !imageLibFileSearch(dir, name, "svgz,png").empty();
}
return true;
}
case LYXRC_INFO: {
ostringstream oss;
lyxrc.write(oss, true, name);
return !oss.str().empty();
}
case PACKAGE_INFO:
case TEXTCLASS_INFO:
return true;
case BUFFER_INFO:
if (name == "name" || name == "path" || name == "class")
return true;
if (name == "vcs-revision" || name == "vcs-tree-revision" ||
name == "vcs-author" || name == "vcs-date" || name == "vcs-time")
return buffer().lyxvc().inUse();
return false;
case LYX_INFO:
return name == "version";
}
return false;
}
bool InsetInfo::showInsetDialog(BufferView * bv) const
{
bv->showDialog("info");
return true;
}
bool InsetInfo::getStatus(Cursor & cur, FuncRequest const & cmd,
FuncStatus & flag) const
{
switch (cmd.action()) {
case LFUN_INSET_SETTINGS:
return InsetCollapsable::getStatus(cur, cmd, flag);
case LFUN_INSET_DIALOG_UPDATE:
case LFUN_INSET_COPY_AS:
flag.setEnabled(true);
return true;
case LFUN_INSET_MODIFY:
if (validateModifyArgument(cmd.argument())) {
flag.setEnabled(true);
return true;
}
//fall through
default:
return false;
}
}
void InsetInfo::doDispatch(Cursor & cur, FuncRequest & cmd)
{
switch (cmd.action()) {
case LFUN_INSET_MODIFY:
cur.recordUndo();
setInfo(to_utf8(cmd.argument()));
break;
case LFUN_INSET_COPY_AS: {
cap::clearSelection();
Cursor copy(cur);
copy.pushBackward(*this);
copy.pit() = 0;
copy.pos() = 0;
copy.resetAnchor();
copy.pit() = copy.lastpit();
copy.pos() = copy.lastpos();
copy.setSelection();
cap::copySelection(copy);
break;
}
default:
InsetCollapsable::doDispatch(cur, cmd);
break;
}
}
void InsetInfo::setInfo(string const & name)
{
if (name.empty())
return;
// info_type name
string type;
name_ = trim(split(name, type, ' '));
type_ = nameTranslator().find(type);
updateInfo();
}
void InsetInfo::error(string const & err)
{
setText(bformat(_(err), from_utf8(name_)),
Font(inherit_font, buffer().params().language), false);
}
void InsetInfo::setText(docstring const & str)
{
setText(str, Font(inherit_font, buffer().params().language), false);
}
void InsetInfo::updateInfo()
{
BufferParams const & bp = buffer().params();
switch (type_) {
case UNKNOWN_INFO:
error("Unknown Info: %1$s");
break;
case SHORTCUT_INFO:
case SHORTCUTS_INFO: {
FuncRequest const func = lyxaction.lookupFunc(name_);
if (func.action() == LFUN_UNKNOWN_ACTION) {
error("Unknown action %1$s");
break;
}
KeyMap::Bindings bindings = theTopLevelKeymap().findBindings(func);
if (bindings.empty()) {
// It is impropriate to use error() for undefined shortcut
setText(_("undefined"));
break;
}
if (type_ == SHORTCUT_INFO)
setText(bindings.begin()->print(KeySequence::Portable));
else
setText(theTopLevelKeymap().printBindings(func, KeySequence::Portable));
break;
}
case LYXRC_INFO: {
ostringstream oss;
if (name_.empty()) {
setText(_("undefined"));
break;
}
lyxrc.write(oss, true, name_);
string result = oss.str();
if (result.size() < 2) {
setText(_("undefined"));
break;
}
string::size_type loc = result.rfind("\n", result.size() - 2);
loc = loc == string::npos ? 0 : loc + 1;
if (result.size() < loc + name_.size() + 1
|| result.substr(loc + 1, name_.size()) != name_) {
setText(_("undefined"));
break;
}
// remove leading comments and \\name and space
result = result.substr(loc + name_.size() + 2);
// remove \n and ""
result = rtrim(result, "\n");
result = trim(result, "\"");
setText(from_utf8(result));
break;
}
case PACKAGE_INFO:
// check in packages.lst
setText(LaTeXFeatures::isAvailable(name_) ? _("yes") : _("no"));
break;
case TEXTCLASS_INFO: {
// name_ is the class name
LayoutFileList const & list = LayoutFileList::get();
bool available = false;
if (list.haveClass(name_))
available = list[name_].isTeXClassAvailable();
setText(available ? _("yes") : _("no"));
break;
}
case MENU_INFO: {
docstring_list names;
FuncRequest const func = lyxaction.lookupFunc(name_);
if (func.action() == LFUN_UNKNOWN_ACTION) {
error("Unknown action %1$s");
break;
}
// iterate through the menubackend to find it
if (!theApp()) {
error("Can't determine menu entry for action %1$s in batch mode");
break;
}
if (!theApp()->searchMenu(func, names)) {
error("No menu entry for action %1$s");
break;
}
// if found, return its path.
clear();
Paragraph & par = paragraphs().front();
Font const f(inherit_font, buffer().params().language);
//Font fu = f;
//fu.fontInfo().setUnderbar(FONT_ON);
docstring_list::const_iterator beg = names.begin();
docstring_list::const_iterator end = names.end();
for (docstring_list::const_iterator it = beg ;
it != end ; ++it) {
// do not insert > for the top level menu item
if (it != beg)
par.insertInset(par.size(), new InsetSpecialChar(InsetSpecialChar::MENU_SEPARATOR),
f, Change(Change::UNCHANGED));
//FIXME: add proper underlines here. This
// involves rewriting searchMenu used above to
// return a vector of menus. If we do not do
// that, we might as well use below
// Paragraph::insert on each string (JMarc)
for (size_type i = 0; i != it->length(); ++i)
par.insertChar(par.size(), (*it)[i],
f, Change(Change::UNCHANGED));
}
break;
}
case ICON_INFO: {
FuncRequest func = lyxaction.lookupFunc(name_);
docstring icon_name = frontend::Application::iconName(func, true);
// FIXME: We should use the icon directly instead of
// going through FileName. The code below won't work
// if the icon is embedded in the executable through
// the Qt resource system.
// This is only a negligible performance problem:
// If the installed icon differs from the resource icon the
// installed one is preferred anyway, and all icons that are
// embedded in the resources are installed as well.
FileName file(to_utf8(icon_name));
if (file.onlyFileNameWithoutExt() == "unknown") {
string dir = "images";
FileName file2(imageLibFileSearch(dir, name_, "svgz,png"));
if (!file2.empty())
file = file2;
}
if (!file.exists())
break;
int percent_scale = 100;
if (use_gui) {
// Compute the scale factor for the icon such that its
// width on screen is equal to 1em in pixels.
// The scale factor is rounded to the integer nearest
// to the float value of the ratio 100*iconsize/imgsize.
int imgsize = QImage(toqstr(file.absFileName())).width();
if (imgsize > 0) {
int iconsize = Length(1, Length::EM).inPixels(1);
percent_scale = (100 * iconsize + imgsize / 2)/imgsize;
}
}
InsetGraphics * inset = new InsetGraphics(buffer_);
InsetGraphicsParams igp;
igp.filename = file;
igp.lyxscale = percent_scale;
igp.scale = string();
igp.width = Length(1, Length::EM);
inset->setParams(igp);
clear();
Font const f(inherit_font, buffer().params().language);
paragraphs().front().insertInset(0, inset, f,
Change(Change::UNCHANGED));
break;
}
case BUFFER_INFO: {
if (name_ == "name") {
setText(from_utf8(buffer().fileName().onlyFileName()));
break;
}
if (name_ == "path") {
setText(from_utf8(os::latex_path(buffer().filePath())));
break;
}
if (name_ == "class") {
setText(from_utf8(bp.documentClass().name()));
break;
}
// everything that follows is for version control.
// nothing that isn't version control should go below this line.
if (!buffer().lyxvc().inUse()) {
setText(_("No version control"));
break;
}
LyXVC::RevisionInfo itype = LyXVC::Unknown;
if (name_ == "vcs-revision")
itype = LyXVC::File;
else if (name_ == "vcs-tree-revision")
itype = LyXVC::Tree;
else if (name_ == "vcs-author")
itype = LyXVC::Author;
else if (name_ == "vcs-time")
itype = LyXVC::Time;
else if (name_ == "vcs-date")
itype = LyXVC::Date;
string binfo = buffer().lyxvc().revisionInfo(itype);
if (binfo.empty())
setText(from_ascii(name_) + " unknown");
else
setText(from_utf8(binfo));
break;
}
case LYX_INFO:
if (name_ == "version")
setText(from_ascii(lyx_version));
break;
}
}
string InsetInfo::contextMenu(BufferView const &, int, int) const
{
//FIXME: We override the implementation of InsetCollapsable,
//because this inset is not a collapsable inset.
return contextMenuName();
}
string InsetInfo::contextMenuName() const
{
return "context-info";
}
} // namespace lyx