class ScoreWindow(QWidget):
def __init__(self, score, *args):
QWidget.__init__(self, *args)
self.score = score
self.chord_cursor = ChordCursor(score)
self.keymode = KeyMode(self.chord_cursor)
self.chord_handler = ChordCursorHandler()
self.create_controls(score)
self.connect_cursors(score)
self.connect_score(score)
def create_controls(self, score):
inner_widget = QWidget(self)
set_background(inner_widget, QColor('white'))
self.inner_widget = inner_widget
bar_layout = FlowLayout(inner_widget)
self.bar_layout = bar_layout
for i, bar in enumerate(score):
b = self.create_bar(i)
bar_layout.addWidget(b)
scroller = DumbScrollArea()
scroller.setWidget(inner_widget)
scroller.setWidgetResizable(True)
scroller.setFocusPolicy(Qt.NoFocus)
self.scroller = scroller
layout = QVBoxLayout(self)
layout.addWidget(scroller)
def connect_score(self, score):
chord_handler = self.chord_handler
score.bar_deleted.connect(self.delete_bar)
score.bar_inserted.connect(self.insert_bar)
score.bar_appended.connect(self.append_bar)
score.chord_text_changed.connect(chord_handler.chord_text_changed)
def connect_cursors(self, score):
self.chord_cursor.connect(self.bar_layout.row_column_of,
self.bar_layout.index_of,
self.chord_handler)
self.chord_handler.connect(self.chord_cursor,
self.bar_layout,
self.scroller)
def connect_bar(self, bar):
bar.chord_label_focused_by_mouse.connect(
self.chord_handler.chord_label_focused_by_mouse)
bar.request_chord_label_commit.connect(
self.chord_handler.commit_chord)
def create_bar(self, bar_index):
b = ChordBarWindow(self.score[bar_index], self.inner_widget)
self.connect_bar(b)
return b
def delete_bar(self, bar_index):
widget = self.bar_layout.widget_by_index(bar_index)
self.bar_layout.removeWidget(widget)
widget.deleteLater()
def insert_bar(self, bar_index):
b = self.create_bar(bar_index)
self.bar_layout.insert_widget(bar_index, b)
b.show()
def append_bar(self):
b = self.create_bar(len(self.score)-1)
self.bar_layout.addWidget(b)
b.show()
QApplication.processEvents()
def showEvent(self, event):
self.chord_cursor.connect(self.bar_layout.row_column_of,
self.bar_layout.index_of,
self.chord_handler)
self.keymode.switch_mode('chord')
QWidget.showEvent(self, event)
def keyPressEvent(self, event):
handled = self.keymode.keyPressEvent(event)
if not handled:
QWidget.keyPressEvent(self, event)
def oldkeyPressEvent(self, event):
key = event.key()
if key == Qt.Key_A:
widget = self.bar_layout.widget_by_index(1)
self.bar_layout.removeWidget(widget)
elif key == Qt.Key_B:
self.score.insert(1, ScoreBar(2, 4, 4))
bar = self.create_bar(1)
self.bar_layout.insert_widget(1, bar)
bar.show()
class ScoreWindow(QWidget):
def __init__(self, score, *args):
QWidget.__init__(self, *args)
self.score = score
self.bars = []
self.chord_cursor = ChordCursor(score)
self.keymode = KeyMode(self.chord_cursor)
self.create_controls(score)
self.connect_cursors(score)
self.connect_score(score)
def create_controls(self, score):
inner_widget = QWidget(self)
set_background(inner_widget, QColor('white'))
self.inner_widget = inner_widget
bar_layout = FlowLayout(inner_widget)
bar_layout.setAlignment(Qt.AlignHCenter)
self.bar_layout = bar_layout
for i, bar in enumerate(score):
b = self.create_bar(i)
bar_layout.addWidget(b)
scroller = QScrollArea()
scroller.setWidget(inner_widget)
scroller.setWidgetResizable(True)
scroller.setFocusPolicy(Qt.NoFocus)
self.scroller = scroller
layout = QVBoxLayout(self)
layout.addWidget(scroller)
self.layout = layout
def connect_cursors(self, score):
self.chord_cursor.connect(self.bar_layout.row_column_of,
self.bar_layout.index_of,
self)
self.connect_chord_cursor()
def connect_bar(self, bar):
bar.chord_label_focused_by_mouse.connect(
self.chord_label_focused_by_mouse)
bar.request_chord_label_commit.connect(
self.commit_chord_cursor)
def connect_chord_cursor(self):
cursor = self.chord_cursor
cursor.about_to_be_moved.connect(self.unmove_chord_cursor)
cursor.moved.connect(self.move_chord_cursor)
cursor.request_text.connect(self.get_chord_cursor_text)
cursor.request_append.connect(self.append_chord_cursor_text)
cursor.request_backspace.connect(self.backspace_chord_cursor_text)
cursor.request_delete.connect(self.delete_chord_cursor_text)
cursor.request_change_text.connect(self.change_chord_cursor_text)
def connect_score(self, score):
score.bar_deleted.connect(self.delete_bar)
score.bar_inserted.connect(self.insert_bar)
score.bar_appended.connect(self.append_bar)
score.chord_text_changed.connect(self.chord_cursor_text_changed)
def move_chord_cursor(self, bar_index, beat_index):
self.bars[bar_index].focus_chord_label(beat_index)
for view in self.bars[bar_index].views():
self.scroller.ensureWidgetVisible(view)
def unmove_chord_cursor(self, bar_index, beat_index):
self.bars[bar_index].unfocus_chord_label(beat_index)
def get_chord_cursor_text(self, bar_index, beat_index):
return self.bars[bar_index].get_chord_label(beat_index)
def append_chord_cursor_text(self, bar_index, beat_index, text):
self.bars[bar_index].append_to_chord_label(beat_index, text)
def backspace_chord_cursor_text(self, bar_index, beat_index):
self.bars[bar_index].backspace_in_chord_label(beat_index)
def delete_chord_cursor_text(self, bar_index, beat_index):
self.bars[bar_index].delete_in_chord_label(beat_index)
def change_chord_cursor_text(self, bar_index, beat_index, text):
self.bars[bar_index].change_chord_label(beat_index, text)
def chord_label_focused_by_mouse(self, bar_index, beat_index):
self.chord_cursor.move_to(bar_index, beat_index)
def commit_chord_cursor(self):
self.chord_cursor.commit()
def delete_bar(self, bar_index):
for widget in self.bars[bar_index].views():
self.bar_layout.removeWidget(widget)
widget.deleteLater()
del self.bars[bar_index]
for i in xrange(bar_index, len(self.score)):
self.bars[i].set_bar_index(i)
def insert_bar(self, bar_index):
b = self.create_bar(bar_index)
self.bar_layout.insert_widget(bar_index, b)
b.show()
for i in xrange(bar_index, len(self.score)):
self.bars[i].set_bar_index(i)
def append_bar(self):
b = self.create_bar(len(self.score)-1)
self.bar_layout.addWidget(b)
b.show()
QApplication.processEvents()
def chord_cursor_text_changed(self, parent_id, bar_index, beat_index):
if id(self) != parent_id:
self.bars[bar_index].update_chord_label(beat_index)
def create_bar(self, bar_index):
scene = BarScene(self.score[bar_index], bar_index)
b = BarWindow(self.inner_widget)
b.setScene(scene)
self.bars.insert(bar_index, scene)
self.connect_bar(scene)
return b
def toggle_beat_lines(self):
for bar in self.bars:
bar.toggle_beat_lines()
def show_piano(self):
if not hasattr(self, 'piano_scene'):
scene = PianoScene()
scene.note_pressed.connect(self.insert_piano_note)
self.piano_scene = scene
window = PianoWindow()
window.setScene(scene)
self.layout.addWidget(window)
window.show()
self.piano_window = window
else:
self.piano_window.setVisible(not self.piano_window.isVisible())
def insert_piano_note(self, index):
print 'note clicked at %d' % index
def showEvent(self, event):
self.setFocus()
self.chord_cursor.connect(self.bar_layout.row_column_of,
self.bar_layout.index_of,
self)
self.keymode.switch_mode('chord')
QWidget.showEvent(self, event)
def keyPressEvent(self, event):
if event.key() == Qt.Key_Comma:
self.toggle_beat_lines()
return
elif event.key() == Qt.Key_F8:
self.show_piano()
return
handled = self.keymode.keyPressEvent(event)
if not handled:
QWidget.keyPressEvent(self, event)