transportbuttons.py

import variables as var
import constants as cons
from mxr.insertProperties import insertInfo
import midi
import transport
import ui
from mixer import trackCount as count, enableTrackSlots as fxEnable, isTrackSlotsEnabled as fxStatus

def TrBehavior(event):

#def TrBehavior(midiId, data1, data2):
    if event.midiId == midi.MIDI_CONTROLCHANGE:
            if event.data1 == cons.shift_DATA1:
                if event.data2 == 127:
                    var.SHIFT_STATUS = True
                    event.handled = True      
                else:
                    var.SHIFT_STATUS = False
                    event.handled = True
                    
            if event.data1 == cons.play_button:              # Play button behavior. It gets back to the start when stop signal is triggered (the same as the space bar action).
                event.handled = True
                if event.data2 > 0:
                    if transport.isPlaying():
                        if var.SHIFT_STATUS:                    # If Shift button is hold, then play button will trigger a pause signal instead of a stop one.
                            transport.start()
                            
                        else:
                            transport.stop()
                            ui.setHintMsg("Playback stopped!")
                            event.handled = True
                    else:
                        if var.SHIFT_STATUS:
                            transport.stop()
                            ui.setHintMsg("Playing position reseted!")
                            event.handled = True
                        else:
                            if ui.isStartOnInputEnabled():
                                transport.start()
                                ui.setHintMsg("Waiting for input ...")
                                event.handled = True
                            else:
                                transport.start()
                                ui.setHintMsg("Now playing!")
                                event.handled = True
                        
            if event.data1 == cons.record_button:        # Record button behavior.
                event.handled = True
                if event.data2 > 0:
                        if var.SHIFT_STATUS == False:
                            if transport.isRecording():
                                transport.record()
                                ui.setHintMsg("Recording is now unarmed!")
                            else:
                                transport.record()
                                ui.setHintMsg("Armed for recording!")

                        elif var.SHIFT_STATUS: # Shift + Record button behavior. This disables all FX in the mixer, and reenables the previous state when pressed again.
                            if var.fxStatus:
                                var.fxStatus = 0
                                ui.setHintMsg("All FX disabled!")
                                for x in range(0, count()-1):
                                    var.mixerFx["{0}".format(x)] = insertInfo(x).fxStatus
                                    if fxStatus(x):
                                        fxEnable(x, 0)
                            elif not var.fxStatus:
                                var.fxStatus = 1
                                ui.setHintMsg("FX reenabled!")
                                # Reenable FX only for tracks that had them enabled before.
                                for x,y in var.mixerFx.items():
                                    if y:
                                        fxEnable(int(x), 1)

def Handler(midiId, data1):
    if midiId == midi.MIDI_CONTROLCHANGE:
        if var.SHIFT_STATUS:
            if data1 == cons.play_button:
                return False
        else:
            if data1 == cons.play_button or cons.record_button:
                return True