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/*
Copyright (C) 2012-2021 Carl Hetherington <cth@carlh.net>
This file is part of libdcp.
libdcp is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
libdcp is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY 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 libdcp. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
*/
/** @file src/text.h
* @brief Text class
*/
#ifndef LIBDCP_TEXT_H
#define LIBDCP_TEXT_H
#include "dcp_time.h"
#include "h_align.h"
#include "v_align.h"
namespace dcp {
class EqualityOptions;
class Text
{
public:
virtual ~Text() {}
/** @return text start time (relative to the start of the reel) */
Time in () const {
return _in;
}
/** @return text finish time (relative to the start of the reel) */
Time out () const {
return _out;
}
float h_position () const {
return _h_position;
}
HAlign h_align () const {
return _h_align;
}
/** @return vertical position as a proportion of the screen height from the
* vertical alignment point.
* (between 0 and 1)
*/
float v_position () const {
return _v_position;
}
VAlign v_align () const {
return _v_align;
}
float z_position() const {
return _z_position;
}
struct VariableZPosition
{
float position;
int64_t duration;
};
std::vector<VariableZPosition> variable_z_positions() const {
return _variable_z_positions;
}
Time fade_up_time () const {
return _fade_up_time;
}
Time fade_down_time () const {
return _fade_down_time;
}
void set_in (Time i) {
_in = i;
}
void set_out (Time o) {
_out = o;
}
void set_h_position (float p) {
_h_position = p;
}
/** @param p New vertical position as a proportion of the screen height
* from the top (between 0 and 1)
*/
void set_v_position (float p) {
_v_position = p;
}
void set_z_position(float z) {
_z_position = z;
}
void set_variable_z_positions(std::vector<VariableZPosition> z) {
_variable_z_positions = std::move(z);
}
void set_fade_up_time (Time t) {
_fade_up_time = t;
}
void set_fade_down_time (Time t) {
_fade_down_time = t;
}
virtual bool equals(std::shared_ptr<const dcp::Text> other, EqualityOptions const& options, NoteHandler note) const;
protected:
Text(
Time in,
Time out,
float h_position,
HAlign h_align,
float v_position,
VAlign v_align,
float z_position,
std::vector<VariableZPosition> variable_z,
Time fade_up_time,
Time fade_down_time
);
Time _in;
Time _out;
/** Horizontal position as a proportion of the screen width from the _h_align
* (between 0 and 1)
*/
float _h_position = 0;
HAlign _h_align = HAlign::CENTER;
/** Vertical position as a proportion of the screen height from the _v_align
* (between 0 and 1)
*/
float _v_position = 0;
VAlign _v_align = VAlign::CENTER;
float _z_position = 0;
std::vector<VariableZPosition> _variable_z_positions;
Time _fade_up_time;
Time _fade_down_time;
};
bool operator==(Text::VariableZPosition a, Text::VariableZPosition b);
}
#endif
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