diff options
Diffstat (limited to 'draw_piano.py')
| -rwxr-xr-x | draw_piano.py | 106 |
1 files changed, 53 insertions, 53 deletions
diff --git a/draw_piano.py b/draw_piano.py index 240cfb1..4819b09 100755 --- a/draw_piano.py +++ b/draw_piano.py @@ -24,10 +24,11 @@ D = 7. BLACK_KEY_WIDTH = 1 - K2 / D + K1 / D -LETTERS_TO_KEY_CODES = {'Q': 24, 'W': 25, 'E': 26, 'R': 27, 'T': 28, 'Y': 29, - 'U': 30, 'I': 31, '2': 11, '3': 12, '5': 14, '6': 15, '7': 16, - 'S': 39, 'D': 40, 'G': 42, 'H': 43, 'J': 44, 'L': 46, 'Z': 52, - 'X': 53, 'C': 54, 'V': 55, 'B': 56, 'N': 57, 'M': 58, ',': 59} +LETTERS_TO_KEY_CODES = { + 'Q': 24, 'W': 25, 'E': 26, 'R': 27, 'T': 28, 'Y': 29, + 'U': 30, 'I': 31, '2': 11, '3': 12, '5': 14, '6': 15, '7': 16, + 'S': 39, 'D': 40, 'G': 42, 'H': 43, 'J': 44, 'L': 46, 'Z': 52, + 'X': 53, 'C': 54, 'V': 55, 'B': 56, 'N': 57, 'M': 58, ',': 59} KEY_CODES_TO_LETTERS = {} @@ -37,14 +38,12 @@ for key in LETTERS_TO_KEY_CODES.keys(): class PianoKeyboard(Gtk.DrawingArea): - __gsignals__ = {'key_pressed': (GObject.SignalFlags.RUN_FIRST, - None, - ([GObject.TYPE_INT, GObject.TYPE_INT, - GObject.TYPE_STRING])), - 'key_released': (GObject.SignalFlags.RUN_FIRST, - None, - ([GObject.TYPE_INT, GObject.TYPE_INT, - GObject.TYPE_STRING]))} + __gsignals__ = {'key_pressed': (GObject.SignalFlags.RUN_FIRST, None, + ([GObject.TYPE_INT, GObject.TYPE_INT, + GObject.TYPE_STRING])), + 'key_released': (GObject.SignalFlags.RUN_FIRST, None, + ([GObject.TYPE_INT, GObject.TYPE_INT, + GObject.TYPE_STRING]))} def __init__(self, octaves=1, add_c=False, labels=None, values=None): self._octaves = octaves @@ -68,13 +67,13 @@ class PianoKeyboard(Gtk.DrawingArea): self.connect('draw', self.__draw_cb) self.connect('event', self.__event_cb) - self.set_events(Gdk.EventMask.EXPOSURE_MASK | - Gdk.EventMask.BUTTON_PRESS_MASK | \ - Gdk.EventMask.BUTTON_RELEASE_MASK | \ - Gdk.EventMask.BUTTON_MOTION_MASK | \ - Gdk.EventMask.POINTER_MOTION_MASK | \ - Gdk.EventMask.POINTER_MOTION_HINT_MASK | \ - Gdk.EventMask.TOUCH_MASK) + self.set_events( + Gdk.EventMask.EXPOSURE_MASK | Gdk.EventMask.BUTTON_PRESS_MASK | + Gdk.EventMask.BUTTON_RELEASE_MASK | + Gdk.EventMask.BUTTON_MOTION_MASK | + Gdk.EventMask.POINTER_MOTION_MASK | + Gdk.EventMask.POINTER_MOTION_HINT_MASK | + Gdk.EventMask.TOUCH_MASK) def set_labels(self, labels): self._labels = labels @@ -92,23 +91,25 @@ class PianoKeyboard(Gtk.DrawingArea): self._octave_width = self._key_width * 7 # this array have the x position where starts every key - self._x_start = [0, - self._key_width * K2 / D, - self._key_width, - self._key_width + self._key_width * K2 / D, - self._key_width * 2, - self._key_width * 3, - self._key_width * 3 + self._key_width * K2 / D, - self._key_width * 4, - self._key_width * 4 + self._key_width * K2 / D, - self._key_width * 5, - self._key_width * 5 + self._key_width * K2 / D, - self._key_width * 6] + self._x_start = [ + 0, + self._key_width * K2 / D, + self._key_width, + self._key_width + self._key_width * K2 / D, + self._key_width * 2, + self._key_width * 3, + self._key_width * 3 + self._key_width * K2 / D, + self._key_width * 4, + self._key_width * 4 + self._key_width * K2 / D, + self._key_width * 5, + self._key_width * 5 + self._key_width * K2 / D, + self._key_width * 6] self.set_size_request(-1, self._height) def __event_cb(self, widget, event): - if event.type in (Gdk.EventType.TOUCH_BEGIN, + if event.type in ( + Gdk.EventType.TOUCH_BEGIN, Gdk.EventType.TOUCH_CANCEL, Gdk.EventType.TOUCH_END, Gdk.EventType.TOUCH_UPDATE, Gdk.EventType.BUTTON_PRESS, Gdk.EventType.BUTTON_RELEASE, Gdk.EventType.MOTION_NOTIFY): @@ -119,7 +120,8 @@ class PianoKeyboard(Gtk.DrawingArea): # save a copy of the old touches old_touches = [] old_touches.extend(self._touches.values()) - if event.type in (Gdk.EventType.TOUCH_BEGIN, + if event.type in ( + Gdk.EventType.TOUCH_BEGIN, Gdk.EventType.TOUCH_UPDATE, Gdk.EventType.BUTTON_PRESS): if event.type == Gdk.EventType.TOUCH_BEGIN: # verify if there are another touch pointed to the same key @@ -133,8 +135,8 @@ class PianoKeyboard(Gtk.DrawingArea): event.get_state()[1] & Gdk.ModifierType.BUTTON1_MASK: self._touches[seq] = (x, y) updated_positions = True - elif event.type in (Gdk.EventType.TOUCH_END, - Gdk.EventType.BUTTON_RELEASE): + elif event.type in ( + Gdk.EventType.TOUCH_END, Gdk.EventType.BUTTON_RELEASE): del self._touches[seq] # execute the update pressed keys with a delay, # because motion events can came after the button release @@ -157,7 +159,7 @@ class PianoKeyboard(Gtk.DrawingArea): octave_pressed = int(pressed_key[:pressed_key.find('_')]) key_pressed = int(pressed_key[pressed_key.find('_') + 1:]) self.emit('key_pressed', octave_pressed, key_pressed, - self.get_value(octave_pressed, key_pressed)) + self.get_value(octave_pressed, key_pressed)) else: del self._pressed_keys[self._pressed_keys.index(pressed_key)] @@ -166,7 +168,7 @@ class PianoKeyboard(Gtk.DrawingArea): octave_released = int(key[:key.find('_')]) key_released = int(key[key.find('_') + 1:]) self.emit('key_released', octave_released, key_released, - self.get_value(octave_released, key_released)) + self.get_value(octave_released, key_released)) self._pressed_keys = new_pressed_keys logging.error(self._pressed_keys) @@ -180,8 +182,8 @@ class PianoKeyboard(Gtk.DrawingArea): min_x = self._width max_x = 0 for touch in uniq_touches: - min_x_touch, max_x_touch = \ - self.get_damaged_range(int(touch[0]), int(touch[1])) + min_x_touch, max_x_touch = self.get_damaged_range(int(touch[0]), + int(touch[1])) if min_x_touch < min_x: min_x = min_x_touch if max_x_touch > max_x: @@ -231,19 +233,19 @@ class PianoKeyboard(Gtk.DrawingArea): key_area = int((x % self._octave_width) / self._key_width) click_x = int(x % self._key_width) if y > self._black_keys_height or \ - (self._add_c and x > self._width - self._key_width): + (self._add_c and x > self._width - self._key_width): key_found = self._white_keys[key_area] else: # check black key at the right key_found = -1 if key_area in self._l_keys_areas or \ - key_area in self._t_keys_areas: + key_area in self._t_keys_areas: if click_x > self._key_width * K2 / D: key_found = self._white_keys[key_area] + 1 # check black key at the left if key_found == -1 and \ - key_area in self._j_keys_areas or \ - key_area in self._t_keys_areas: + key_area in self._j_keys_areas or \ + key_area in self._t_keys_areas: if click_x < self._key_width * K1 / D: key_found = self._white_keys[key_area] - 1 if key_found == -1: @@ -307,10 +309,9 @@ class PianoKeyboard(Gtk.DrawingArea): # calculate text height # TODO: ctx.select_font_face('sans-serif', cairo.FONT_SLANT_NORMAL, - cairo.FONT_WEIGHT_BOLD) + cairo.FONT_WEIGHT_BOLD) ctx.set_font_size(self.font_size) - x_bearing, y_bearing, width, height, x_advance, y_advance = \ - ctx.text_extents('M') + _xbear, _ybear, width, height, _xadv, _yadv = ctx.text_extents('M') self._text_height = height for n in range(0, self._octaves): @@ -531,21 +532,20 @@ class PianoKeyboard(Gtk.DrawingArea): ctx.stroke() def _draw_label(self, ctx, x, octave_number, position, black_key, - highlighted): + highlighted): #print "Dibujando ",text if self._labels is not None: text = self._labels[octave_number][position] - x_bearing, y_bearing, width, height, x_advance, y_advance = \ - ctx.text_extents(text) + x_bea, _ybea, width, height, _xadv, _yadv = ctx.text_extents(text) if black_key: - x_text = x + self._key_width * K1 / D - (width / 2 + x_bearing) + x_text = x + self._key_width * K1 / D - (width / 2 + x_bea) y_text = self._black_keys_height - (self._text_height * 2) if highlighted: stroke = (0, 0, 0) else: stroke = (1, 1, 1) else: - x_text = x + self._key_width / 2 - (width / 2 + x_bearing) + x_text = x + self._key_width / 2 - (width / 2 + x_bea) y_text = self._height - (self._text_height * 2) stroke = (0, 0, 0) ctx.set_source_rgb(*stroke) @@ -555,12 +555,12 @@ class PianoKeyboard(Gtk.DrawingArea): def print_key_pressed(widget, octave_clicked, key_clicked, letter): print 'Pressed Octave: %d Key: %d Letter: %s' % (octave_clicked, - key_clicked, letter) + key_clicked, letter) def print_key_released(widget, octave_clicked, key_clicked, letter): print 'Released Octave: %d Key: %d Letter: %s' % (octave_clicked, - key_clicked, letter) + key_clicked, letter) def main(): |