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/*
Copyright (C) 2013-2020 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file src/wx/audio_mapping_view.h
* @brief AudioMappingView class.
*
*/
#include <boost/signals2.hpp>
#include <wx/wx.h>
#include "lib/audio_mapping.h"
/** @class AudioMappingView
* @brief This class displays the mapping of one set of audio channels to another,
* with gain values on each node of the map.
*
* The AudioMapping passed to set() describes the actual channel mapping,
* and the names passed to set_input_channels() and set_output_channels() are
* used to label the rows and columns.
*
* The display's row count is equal to the AudioMapping's input channel count,
* and the column count is equal to the number of name passed to
* set_output_channels(). Any other output channels in the AudioMapping are
* hidden from view. Thus input channels are never hidden but output channels
* might be.
*/
class AudioMappingView : public wxPanel
{
public:
explicit AudioMappingView (wxWindow *, wxString left_label, wxString from, wxString top_label, wxString to);
void set (AudioMapping);
void set_input_channels (std::vector<std::string> const & names);
void set_output_channels (std::vector<std::string> const & names);
struct Group
{
Group (int f, int t, std::string n)
: from (f)
, to (t)
, name (n)
{}
/** First channel index (from 0) */
int from;
/** Last channel index (from 0) */
int to;
/** Name of this group */
std::string name;
};
void set_input_groups (std::vector<Group> const & groups);
boost::signals2::signal<void (AudioMapping)> Changed;
private:
void map_values_changed ();
void setup_sizes ();
void paint ();
void paint_static (wxDC& dc, wxGraphicsContext* gc);
void paint_column_labels (wxDC& dc, wxGraphicsContext* gc);
void paint_column_lines (wxGraphicsContext* gc);
void paint_row_labels (wxDC& dc, wxGraphicsContext* gc);
void paint_row_lines (wxGraphicsContext* gc);
void paint_indicators (wxDC& dc);
void size (wxSizeEvent &);
void scroll ();
void left_down (wxMouseEvent &);
void right_down (wxMouseEvent &);
void motion (wxMouseEvent &);
void mouse_wheel (wxMouseEvent &);
boost::optional<std::pair<int, int> > mouse_event_to_channels (wxMouseEvent& ev) const;
boost::optional<std::string> mouse_event_to_input_group_name (wxMouseEvent& ev) const;
void setup ();
wxString safe_input_channel_name (int n) const;
wxString safe_output_channel_name (int n) const;
void set_gain_from_menu (double linear);
void edit ();
AudioMapping _map;
wxMenu* _menu;
wxPanel* _body;
wxScrollBar* _vertical_scroll;
wxScrollBar* _horizontal_scroll;
int _menu_input;
int _menu_output;
wxString _left_label;
wxString _from;
wxString _top_label;
wxString _to;
std::vector<std::string> _input_channels;
std::vector<std::string> _output_channels;
std::vector<Group> _input_groups;
boost::optional<std::pair<int, int> > _last_tooltip_channels;
};
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