def on_zyncoder(self, encoder, value):
if encoder == ENC_BACK:
if self.edit_mode:
self.velocity = self.velocity + value
if self.velocity > 127:
self.velocity = 127
return
if self.velocity < 1:
self.velocity = 1
return
self.velocity_canvas.coords(
"velocityIndicator", 0, 0,
self.piano_roll_width * self.velocity / 127,
PLAYHEAD_HEIGHT)
note = self.keymap[self.selected_cell[1]]["note"]
if libseq.getNoteDuration(self.selected_cell[0], note):
libseq.setNoteVelocity(self.selected_cell[0], note,
self.velocity)
self.draw_cell(self.selected_cell[0],
self.selected_cell[1])
self.parent.set_title("Velocity: %d" % (self.velocity), None,
None, 2)
else:
self.select_cell(None, self.selected_cell[1] - value)
elif encoder == ENC_SELECT:
if self.edit_mode:
if value > 0:
self.duration = self.duration + 1
if value < 0:
self.duration = self.duration - 1
if self.duration > libseq.getSteps():
self.duration = libseq.getSteps()
return
if self.duration < 1:
self.duration = 1
return
if libseq.getNoteDuration(self.selected_cell[0],
self.selected_cell[1]):
self.add_event(self.selected_cell[0],
self.selected_cell[1])
else:
self.select_cell()
self.parent.set_title("Duration: %d steps" % (self.duration),
None, None, 2)
else:
self.select_cell(self.selected_cell[0] + value, None)
elif encoder == ENC_LAYER and not self.parent.lst_menu.winfo_viewable(
):
# Show menu
self.parent.toggle_menu()
return
def load_pattern(self, index):
libseq.clearSequence(self.bank, self.sequence)
libseq.setChannel(self.bank, self.sequence, 0, self.channel)
self.pattern = index
libseq.selectPattern(index)
libseq.addPattern(self.bank, self.sequence, 0, 0, index)
if self.selected_cell[0] >= libseq.getSteps():
self.selected_cell[0] = libseq.getSteps() - 1
self.keymap_offset = libseq.getRefNote()
self.load_keymap()
self.redraw_pending = 2
self.select_cell(0, int(self.keymap_offset + self.zoom / 2))
self.play_canvas.coords("playCursor", 1, 0, 1 + self.step_width,
PLAYHEAD_HEIGHT)
def draw_cell(self, step, row):
libseq.isPatternModified() # Avoid refresh redrawing whole grid
cellIndex = row * libseq.getSteps(
) + step # Cells are stored in array sequentially: 1st row, 2nd row...
if cellIndex >= len(self.cells):
return
note = self.keymap[row + self.keymap_offset]["note"]
velocity_colour = libseq.getNoteVelocity(step, note)
if velocity_colour:
velocity_colour = 70 + velocity_colour
elif libseq.getScale() == 1:
# Draw tramlines for white notes in chromatic scale
key = note % 12
if key in (0, 2, 4, 5, 7, 9, 11): # White notes
# if key in (1,3,6,8,10): # Black notes
velocity_colour += 30
else:
# Draw tramlines for odd rows in other scales and maps
if (row + self.keymap_offset) % 2:
velocity_colour += 30
duration = libseq.getNoteDuration(step, note)
if not duration:
duration = 1
fill_colour = "#%02x%02x%02x" % (velocity_colour, velocity_colour,
velocity_colour)
cell = self.cells[cellIndex]
coord = self.get_cell(step, row, duration)
if cell:
# Update existing cell
self.grid_canvas.itemconfig(cell, fill=fill_colour)
self.grid_canvas.coords(cell, coord)
else:
# Create new cell
cell = self.grid_canvas.create_rectangle(
coord,
fill=fill_colour,
width=0,
tags=("%d,%d" % (step, row), "gridcell", "step%d" % step))
self.grid_canvas.tag_bind(cell, '<ButtonPress-1>',
self.on_grid_press)
self.grid_canvas.tag_bind(cell, '<ButtonRelease-1>',
self.on_grid_release)
self.grid_canvas.tag_bind(cell, '<B1-Motion>', self.on_grid_drag)
self.cells[cellIndex] = cell
if step + duration > libseq.getSteps():
self.grid_canvas.itemconfig("lastnotetext%d" % row,
text="+%d" %
(duration - libseq.getSteps() + step),
state="normal")
def toggle_event(self, step, index):
if step < 0 or step >= libseq.getSteps() or index >= len(self.keymap):
return
note = self.keymap[index]['note']
if libseq.getNoteVelocity(step, note):
self.remove_event(step, index)
else:
self.add_event(step, index)
return note
def check_pattern(self, beat_type, steps_per_beat, beats_in_pattern):
steps_in_pattern = beats_in_pattern * steps_per_beat
clocks_per_step = 24 / steps_per_beat
self.assertEqual(libseq.getSteps(), steps_in_pattern)
self.assertEqual(libseq.getBeatType(), beat_type)
self.assertEqual(libseq.getStepsPerBeat(), steps_per_beat)
self.assertEqual(libseq.getBeatsInPattern(), beats_in_pattern)
self.assertEqual(libseq.getClocksPerStep(), clocks_per_step)
self.assertEqual(libseq.getPatternLength(libseq.getPatternIndex()),
clocks_per_step * steps_in_pattern)
def export_smf(self, params):
smf = libsmf.addSmf()
tempo = libseq.getTempo()
libsmf.addTempo(smf, 0, tempo)
ticks_per_step = libsmf.getTicksPerQuarterNote(
smf) / libseq.getStepsPerBeat()
for step in range(libseq.getSteps()):
time = int(step * ticks_per_step)
for note in range(128):
duration = libseq.getNoteDuration(step, note)
if duration == 0:
continue
duration = int(duration * ticks_per_step)
velocity = libseq.getNoteVelocity(step, note)
libsmf.addNote(smf, 0, time, duration, self.channel, note,
velocity)
libsmf.setEndOfTrack(smf, 0, int(libseq.getSteps() * ticks_per_step))
zynsmf.save(
smf, "/zynthian/zynthian-my-data/capture/pattern%d_%s.mid" %
(self.pattern, datetime.now()))
def on_grid_press(self, event):
if self.parent.lst_menu.winfo_viewable():
self.parent.hide_menu()
return
if self.parent.param_editor_item != None:
self.parent.hide_param_editor()
return
self.grid_drag_start = event
try:
col, row = self.grid_canvas.gettags(
self.grid_canvas.find_withtag(tkinter.CURRENT))[0].split(',')
except:
return
note = self.keymap[self.keymap_offset + int(row)]["note"]
step = int(col)
if step < 0 or step >= libseq.getSteps():
return
self.drag_start_velocity = libseq.getNoteVelocity(step, note)
self.drag_start_duration = libseq.getNoteDuration(step, note)
self.drag_start_step = int(event.x / self.step_width)
if not self.drag_start_velocity:
self.play_note(note)
self.select_cell(int(col), self.keymap_offset + int(row))
def select_cell(self, step=None, index=None):
if len(self.keymap) == 0:
return
redraw = False
if step == None:
step = self.selected_cell[0]
if index == None:
index = self.selected_cell[1]
if step < 0:
step = 0
if step >= libseq.getSteps():
step = libseq.getSteps() - 1
if index >= len(self.keymap):
index = len(self.keymap) - 1
if index >= self.keymap_offset + self.zoom:
# Note is off top of display
self.keymap_offset = index - self.zoom + 1
redraw = True
if index < 0:
index = 0
if index < self.keymap_offset:
# Note is off bottom of display
self.keymap_offset = index
redraw = True
if redraw:
self.redraw_pending = 1
row = index - self.keymap_offset
note = self.keymap[index]['note']
# Skip hidden (overlapping) cells
for previous in range(step - 1, -1, -1):
prev_duration = libseq.getNoteDuration(previous, note)
if not prev_duration:
continue
if prev_duration > step - previous:
if step > self.selected_cell[0]:
step = previous + prev_duration
else:
step = previous
break
if step < 0:
step = 0
if step >= libseq.getSteps():
step = libseq.getSteps() - 1
self.selected_cell = [step, index]
cell = self.grid_canvas.find_withtag("selection")
duration = libseq.getNoteDuration(step, row)
if not duration:
duration = self.duration
coord = self.get_cell(step, row, duration)
coord[0] = coord[0] - 1
coord[1] = coord[1] - 1
coord[2] = coord[2]
coord[3] = coord[3]
if not cell:
cell = self.grid_canvas.create_rectangle(
coord,
fill="",
outline=SELECT_BORDER,
width=self.select_thickness,
tags="selection")
else:
self.grid_canvas.coords(cell, coord)
self.grid_canvas.tag_raise(cell)
def draw_grid(self):
clear_grid = (self.redraw_pending == 2)
self.redraw_pending = 0
if libseq.getSteps() == 0:
return #TODO: Should we clear grid?
if self.keymap_offset > len(self.keymap) - self.zoom:
self.keymap_offset = len(self.keymap) - self.zoom
if self.keymap_offset < 0:
self.keymap_offset = 0
font = tkFont.Font(family=zynthian_gui_config.font_topbar[0],
size=self.fontsize)
if clear_grid:
self.grid_canvas.delete(tkinter.ALL)
self.step_width = (self.grid_width - 2) / libseq.getSteps()
self.draw_pianoroll()
self.cells = [None] * self.zoom * libseq.getSteps()
self.play_canvas.coords(
"playCursor", 1 + self.playhead * self.step_width, 0,
1 + self.playhead * self.step_width + self.step_width,
PLAYHEAD_HEIGHT)
# Draw cells of grid
self.grid_canvas.itemconfig("gridcell", fill="black")
# Redraw gridlines
self.grid_canvas.delete("gridline")
if libseq.getStepsPerBeat():
for step in range(0,
libseq.getSteps() + 1, libseq.getStepsPerBeat()):
self.grid_canvas.create_line(step * self.step_width,
0,
step * self.step_width,
self.zoom * self.row_height - 1,
fill=GRID_LINE,
tags=("gridline"))
# Delete existing note names
self.piano_roll.delete("notename")
for row in range(0, self.zoom):
index = row + self.keymap_offset
if (index >= len(self.keymap)):
break
if clear_grid:
# Create last note labels in grid
self.grid_canvas.create_text(
self.grid_width - self.select_thickness,
int(self.row_height * (self.zoom - row - 0.5)),
state="hidden",
tags=("lastnotetext%d" % (row), "lastnotetext"),
font=font,
anchor="e")
self.draw_row(index)
# Update pianoroll keys
id = "row%d" % (row)
try:
name = self.keymap[index]["name"]
except:
name = None
try:
colour = self.keymap[index]["colour"]
except:
colour = "white"
self.piano_roll.itemconfig(id, fill=colour)
if name:
self.piano_roll.create_text(
(2, self.row_height * (self.zoom - row - 0.5)),
text=name,
font=font,
anchor="w",
fill=CANVAS_BACKGROUND,
tags="notename")
if self.keymap[index]['note'] % 12 == libseq.getTonic():
self.grid_canvas.create_line(
0, (self.zoom - row) * self.row_height,
self.grid_width, (self.zoom - row) * self.row_height,
fill=GRID_LINE,
tags=("gridline"))
# Set z-order to allow duration to show
if clear_grid:
for step in range(libseq.getSteps()):
self.grid_canvas.tag_lower("step%d" % step)
self.select_cell()
def draw_row(self, index):
row = index - self.keymap_offset
self.grid_canvas.itemconfig("lastnotetext%d" % (row), state="hidden")
for step in range(libseq.getSteps()):
self.draw_cell(step, row)
