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/*
* Copyright 2013 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Charles Kerr <charles.kerr@canonical.com>
*/
#ifndef INDICATOR_DATETIME_FORMATTER_H
#define INDICATOR_DATETIME_FORMATTER_H
#include <core/property.h>
#include <core/signal.h>
#include <glib.h>
namespace unity {
namespace indicator {
namespace datetime {
class Clock;
class DateTime;
/***
****
***/
/**
* \brief Provides the right time format strings based on the profile and user's settings
*/
class Formatter
{
public:
/** \brief The time format string for the menu header */
core::Property<std::string> headerFormat;
/** \brief The time string for the menu header. (eg, the headerFormat + the clock's time */
core::Property<std::string> header;
/** \brief Signal to denote when the relativeFormat has changed.
When this is emitted, clients will want to rebuild their
menuitems that contain relative time strings */
core::Signal<> relativeFormatChanged;
/** \brief Generate a relative time format for some time (or time range)
from the current clock's value. For example, a full-day interval
starting at the end of the current clock's day yields "Tomorrow" */
std::string getRelativeFormat(GDateTime* then, GDateTime* then_end=nullptr) const;
protected:
Formatter(const std::shared_ptr<Clock>&);
virtual ~Formatter();
/** \brief Returns true if the current locale prefers 12h display instead of 24h */
static bool is_locale_12h();
static const char * getDefaultHeaderTimeFormat(bool twelvehour, bool show_seconds);
/** \brief Translate the string based on LC_TIME instead of LC_MESSAGES.
The intent of this is to let users set LC_TIME to override
their other locale settings when generating time format string */
static const char * T_(const char * fmt);
private:
Formatter(const Formatter&) =delete;
Formatter& operator=(const Formatter&) =delete;
class Impl;
std::unique_ptr<Impl> p;
};
/**
* \brief A Formatter for the Desktop and DesktopGreeter profiles.
*/
class DesktopFormatter: public Formatter
{
public:
DesktopFormatter(const std::shared_ptr<Clock>&);
~DesktopFormatter();
private:
class Impl;
friend Impl;
std::unique_ptr<Impl> p;
};
/**
* \brief A Formatter for Phone and PhoneGreeter profiles.
*/
class PhoneFormatter: public Formatter
{
public:
PhoneFormatter(const std::shared_ptr<Clock>& clock): Formatter(clock) {
headerFormat.set(getDefaultHeaderTimeFormat(is_locale_12h(), false));
}
};
} // namespace datetime
} // namespace indicator
} // namespace unity
#endif // INDICATOR_DATETIME_CLOCK_H
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