77 lines
1.7 KiB
C++
77 lines
1.7 KiB
C++
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/*
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Copyright (C) 2000-2007 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <sigc++/signal.h>
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#include <ardour/curve.h>
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#include "automation_midi_cc_line.h"
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using namespace std;
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using namespace ARDOUR;
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using namespace PBD;
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AutomationMidiCCLine::AutomationMidiCCLine (const string & name, TimeAxisView& tv, ArdourCanvas::Group& parent, AutomationList& l)
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: AutomationLine (name, tv, parent, l)
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{
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set_verbose_cursor_uses_gain_mapping (true);
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}
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void
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AutomationMidiCCLine::view_to_model_y (double& y)
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{
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assert(y >= 0);
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assert(y <= 1);
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y = (int)(y * 127.0);
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assert(y >= 0);
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assert(y <= 127);
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}
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void
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AutomationMidiCCLine::model_to_view_y (double& y)
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{
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assert(y >= 0);
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assert(y <= 127);
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y = y / 127.0;
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assert(y >= 0);
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assert(y <= 1);
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}
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string
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AutomationMidiCCLine::get_verbose_cursor_string (float fraction)
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{
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static const size_t MAX_VAL_LEN = 4; // 4 for "127\0"
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char buf[MAX_VAL_LEN];
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double cc_val = fraction;
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view_to_model_y(cc_val); // 0..127
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snprintf (buf, MAX_VAL_LEN, "%u", (unsigned)cc_val);
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return buf;
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}
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