64 lines
1.1 KiB
C++
64 lines
1.1 KiB
C++
#include <pbd/error.h>
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#include <ardour/state_manager.h>
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#include "i18n.h"
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using namespace ARDOUR;
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StateManager::StateManager ()
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{
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_current_state_id = 0;
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}
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StateManager::~StateManager()
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{
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}
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void
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StateManager::drop_all_states ()
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{
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for (StateMap::iterator i = states.begin(); i != states.end(); ++i) {
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delete *i;
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}
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states.clear ();
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save_state (_("cleared history"));
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}
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void
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StateManager::use_state (state_id_t id)
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{
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Change what_changed;
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state_id_t n;
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StateMap::iterator i;
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for (n = 0, i = states.begin(); n < id && i != states.end(); ++n, ++i);
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if (n != id || i == states.end()) {
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fatal << string_compose (_("programming error: illegal state ID (%1) passed to "
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"StateManager::set_state() (range = 0-%3)"), id,
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states.size()-1)
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<< endmsg;
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/*NOTREACHED*/
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return;
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}
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what_changed = restore_state (**i);
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_current_state_id = id;
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send_state_changed (what_changed);
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}
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void
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StateManager::save_state (std::string why)
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{
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states.push_back (state_factory (why));
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_current_state_id = states.size() - 1;
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}
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void
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StateManager::send_state_changed (Change what_changed)
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{
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StateChanged (what_changed);
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}
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