diff options
author | David Robillard <d@drobilla.net> | 2014-12-01 14:28:03 -0500 |
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committer | David Robillard <d@drobilla.net> | 2014-12-01 23:35:24 -0500 |
commit | 767c0238a34ef4acc4d345e88cd5ddb0c8a8e421 (patch) | |
tree | fed11fb6f4e4e08a7c35eb45f53aea70dc66e4f8 /libs/ardour/value_as_string.cc | |
parent | cb8abbe8d2f0e4dfe52bd35613ebba7689628eca (diff) |
Replace half-baked param metadata with descriptor.
Among other things, this means that automation controls/lists have the actual
min/max/normal/toggled of parameters, and not those inferred from the Parameter
ID, which is not correct for things like plugin parameters.
Pushing things down to the Evoral::ParmeterDescriptor may be useful in the
future to have lists do smarter things based on parameter range, but currently
I have just pushed down the above-mentioned currently used attributes.
Diffstat (limited to 'libs/ardour/value_as_string.cc')
-rw-r--r-- | libs/ardour/value_as_string.cc | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/libs/ardour/value_as_string.cc b/libs/ardour/value_as_string.cc new file mode 100644 index 0000000000..3d79d24b9c --- /dev/null +++ b/libs/ardour/value_as_string.cc @@ -0,0 +1,76 @@ +/* + Copyright (C) 2014 Paul Davis + Author: David Robillard + + This program 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. + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#include "ardour/value_as_string.h" + +namespace ARDOUR { + +std::string +value_as_string(const Evoral::ParameterDescriptor& desc, + double v) +{ + char buf[32]; + + if (desc.scale_points) { + // Check if value is on a scale point + for (Evoral::ScalePoints::const_iterator i = desc.scale_points->begin(); + i != desc.scale_points->end(); + ++i) { + if (i->second == v) { + return i->first; // Found it, return scale point label + } + } + } + + // Value is not a scale point, print it normally + if (desc.unit == Evoral::ParameterDescriptor::MIDI_NOTE) { + if (v >= 0 && v <= 127) { + const int num = rint(v); + static const char names[12][3] = { + "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B" + }; + snprintf(buf, sizeof(buf), "%s %d", names[num % 12], (num / 12) - 2); + } else { + // Odd, invalid range, just print the number + snprintf(buf, sizeof(buf), "%.0f", v); + } + } else if (!desc.print_fmt.empty()) { + snprintf(buf, sizeof(buf), desc.print_fmt.c_str(), v); + } else if (desc.integer_step) { + snprintf(buf, sizeof(buf), "%d", (int)v); + } else { + snprintf(buf, sizeof(buf), "%.3f", v); + } + if (desc.print_fmt.empty() && desc.unit == Evoral::ParameterDescriptor::DB) { + // TODO: Move proper dB printing from AutomationLine here + return std::string(buf) + " dB"; + } + return buf; +} + +std::string +value_as_string(const Evoral::ParameterDescriptor& desc, + const Evoral::Variant& val) +{ + // Only numeric support, for now + return value_as_string(desc, val.to_double()); +} + +} // namespace ARDOUR |