Fix up display of plugin automation when loading 2.X sessions.
git-svn-id: svn://localhost/ardour2/branches/3.0@8635 d708f5d6-7413-0410-9779-e7cbd77b26cf
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@ -961,6 +961,30 @@ PluginInsert::set_parameter_state_2X (const XMLNode& node, int version)
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if (c) {
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if (!child->children().empty()) {
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c->alist()->set_state (*child->children().front(), version);
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/* In some cases 2.X saves lists with min_yval and max_yval
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being FLT_MIN and FLT_MAX respectively. This causes problems
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in A3 because these min/max values are used to compute
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where GUI control points should be drawn. If we see such
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values, `correct' them to the min/max of the appropriate
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parameter.
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*/
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float min_y = c->alist()->get_min_y ();
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float max_y = c->alist()->get_max_y ();
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Plugin::ParameterDescriptor desc;
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_plugins.front()->get_parameter_descriptor (port_id, desc);
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if (min_y == FLT_MIN) {
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min_y = desc.lower;
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}
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if (max_y == FLT_MAX) {
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max_y = desc.upper;
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}
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c->alist()->set_yrange (min_y, max_y);
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}
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} else {
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error << string_compose (_("PluginInsert: automatable control %1 not found - ignored"), port_id) << endmsg;
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