Highlight which controllers have currently active MIDI mappings. Very useful with...

[nageru] / midi_mapper.h

diff --git a/midi_mapper.h b/midi_mapper.h
index 2b59b9ff53428cb1a02656049313014ee04548b4..0a6694bd6a6ca0bcf85b78033acb53a68ffc27b2 100644 (file)
--- a/midi_mapper.h
+++ b/midi_mapper.h
@@ -11,6 +11,7 @@
 #include <atomic>
 #include <functional>
 #include <memory>
+#include <mutex>
 #include <string>
 #include <thread>
 
@@ -38,6 +39,30 @@ public:
        virtual void toggle_auto_gain_staging(unsigned bus_idx) = 0;
        virtual void toggle_compressor(unsigned bus_idx) = 0;
        virtual void clear_peak(unsigned bus_idx) = 0;
+
+       // Signals to highlight controls to mark them to the user
+       // as MIDI-controllable (or not).
+       virtual void clear_all_highlights() = 0;
+
+       virtual void highlight_locut(bool highlight) = 0;
+       virtual void highlight_limiter_threshold(bool highlight) = 0;
+       virtual void highlight_makeup_gain(bool highlight) = 0;
+
+       virtual void highlight_treble(unsigned bus_idx, bool highlight) = 0;
+       virtual void highlight_mid(unsigned bus_idx, bool highlight) = 0;
+       virtual void highlight_bass(unsigned bus_idx, bool highlight) = 0;
+       virtual void highlight_gain(unsigned bus_idx, bool highlight) = 0;
+       virtual void highlight_compressor_threshold(unsigned bus_idx, bool highlight) = 0;
+       virtual void highlight_fader(unsigned bus_idx, bool highlight) = 0;
+
+       virtual void highlight_toggle_locut(unsigned bus_idx, bool highlight) = 0;
+       virtual void highlight_toggle_auto_gain_staging(unsigned bus_idx, bool highlight) = 0;
+       virtual void highlight_toggle_compressor(unsigned bus_idx, bool highlight) = 0;
+       virtual void highlight_clear_peak(unsigned bus_idx, bool highlight) = 0;
+
+       // Raw events; used for the editor dialog only.
+       virtual void controller_changed(unsigned controller) = 0;
+       virtual void note_on(unsigned note) = 0;
 };
 
 class MIDIMapper {
@@ -46,7 +71,12 @@ public:
        virtual ~MIDIMapper();
        void set_midi_mapping(const MIDIMappingProto &new_mapping);
        void start_thread();
-       const MIDIMappingProto &get_current_mapping() const { return *mapping_proto; }
+       const MIDIMappingProto &get_current_mapping() const;
+
+       // Overwrites and returns the previous value.
+       ControllerReceiver *set_receiver(ControllerReceiver *new_receiver);
+
+       void refresh_highlights();
 
 private:
        void thread_func();
@@ -54,19 +84,24 @@ private:
        void subscribe_to_port(snd_seq_t *seq, const snd_seq_addr_t &addr);
        void match_controller(int controller, int field_number, int bank_field_number, float value, std::function<void(unsigned, float)> func);
        void match_button(int note, int field_number, int bank_field_number, std::function<void(unsigned)> func);
+       bool has_active_controller(unsigned bus_idx, int field_number, int bank_field_number);  // Also works for buttons.
        bool bank_mismatch(int bank_field_number);
 
-       ControllerReceiver *receiver;
+       void update_highlights();
+
        std::atomic<bool> should_quit{false};
        int should_quit_fd;
 
-       std::unique_ptr<MIDIMappingProto> mapping_proto;
-       int num_controller_banks;
-       int current_controller_bank = 0;
+       mutable std::mutex mapping_mu;
+       ControllerReceiver *receiver;  // Under <mapping_mu>.
+       std::unique_ptr<MIDIMappingProto> mapping_proto;  // Under <mapping_mu>.
+       int num_controller_banks;  // Under <mapping_mu>.
+       std::atomic<int> current_controller_bank{0};
 
        std::thread midi_thread;
 };
 
 bool load_midi_mapping_from_file(const std::string &filename, MIDIMappingProto *new_mapping);
+bool save_midi_mapping_to_file(const MIDIMappingProto &mapping_proto, const std::string &filename);
 
 #endif  // !defined(_MIDI_MAPPER_H)