diff options
author | Daniel Francis <francis@sugarlabs.org> | 2012-07-20 01:23:22 (GMT) |
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committer | Daniel Francis <francis@sugarlabs.org> | 2012-07-20 01:23:22 (GMT) |
commit | 26aa4b4f4cd640620e8db2a60912000f63c6c5b8 (patch) | |
tree | 0d38a1eb5d325ece5f693b2f23a2b112b66db36c | |
parent | e87aaf3691454d9445066386fee2f14a6dd68689 (diff) |
Show G cleff
-rw-r--r-- | .gitignore | 1 | ||||
-rw-r--r-- | clef.py | 46 | ||||
-rw-r--r-- | instruments/instrument.py | 9 | ||||
-rw-r--r-- | instruments/piano.py | 9 | ||||
-rw-r--r-- | staff.py | 11 | ||||
-rw-r--r-- | track.py | 4 |
6 files changed, 67 insertions, 13 deletions
@@ -2,3 +2,4 @@ *.pyo *.mo *~ +clefs.svg @@ -0,0 +1,46 @@ +#!/usr/bin/env python +# -*- coding: utf-8 -*- +# +# Copyright 2012 S. Daniel Francis <francis@sugarlabs.org> +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +import os + +import cairo +import rsvg + +CLEF_C3 = 0 +CLEF_C4 = 1 +CLEF_F = 2 +CLEF_G = 3 + + +class Clef: + clef_type = CLEF_G + clefs = [None, None, None, rsvg.Handle(file=os.path.join( + os.environ['SUGAR_BUNDLE_PATH'], 'symbols/Gclef.svg'))] + + def __init__(self): + pass + + def draw(self, context, xcorner, ytop, width, height): + svg = self.clefs[self.clef_type] + matrix = cairo.Matrix(xx=width / svg.props.width, + yy=height / svg.props.height, + x0=xcorner, + y0=ytop) + context.transform(matrix) + svg.render_cairo(context) diff --git a/instruments/instrument.py b/instruments/instrument.py index d6871b4..3d3f3fc 100644 --- a/instruments/instrument.py +++ b/instruments/instrument.py @@ -39,7 +39,8 @@ class Instrument: self.svg = rsvg.Handle(file=os.path.join( os.environ['SUGAR_BUNDLE_PATH'], 'symbols/accolade.svg')) - def draw(self, context, width, lmarg, rmarg, linespacing, bracket_cr): + def draw(self, window, width, lmarg, rmarg, linespacing): + accolade_cr = window.cairo_create() xx = lmarg * 0.20 / self.svg.props.width x0 = lmarg @@ -50,15 +51,15 @@ class Instrument: staff.rmarg = rmarg staff.spacing = linespacing staff.y = self.ymax - staff.draw(context, width) + staff.draw(window, width) self.ymax = staff.ymax yy = (self.ymax - self.ymin - linespacing * 4) / self.svg.props.height matrix = cairo.Matrix(xx=xx, yy=yy, x0=x0, y0=y0) - bracket_cr.transform(matrix) - self.svg.render_cairo(bracket_cr) + accolade_cr.transform(matrix) + self.svg.render_cairo(accolade_cr) def guess_height(self, linespace): return len(self.staves) * linespace * 9 diff --git a/instruments/piano.py b/instruments/piano.py index 127a06c..b3cd48d 100644 --- a/instruments/piano.py +++ b/instruments/piano.py @@ -22,6 +22,7 @@ from gettext import gettext as _ from staff import Staff from instrument import Instrument +import clef class Piano(Instrument): @@ -29,5 +30,9 @@ class Piano(Instrument): def __init__(self): Instrument.__init__(self) - self.staves.append(Staff()) - self.staves.append(Staff()) + top_staff = Staff() + top_staff.clef = clef.Clef() + bottom_staff = Staff() + bottom_staff.clef = clef.Clef() + self.staves.append(top_staff) + self.staves.append(bottom_staff) @@ -25,21 +25,22 @@ class Staff: rmarg = 0 spacing = 0 ymax = 0 + clef = None def __init__(self): pass - def draw(self, context, width, margin=None): + def draw(self, window, width): + context = window.cairo_create() context.set_source_rgb(0, 0, 0) context.set_line_width(2) line_y = self.y + self.spacing * 2 for i in range(5): - if margin != None: - x = margin - else: - x = self.lmarg + x = self.lmarg context.move_to(x, line_y) context.line_to(width - self.rmarg, line_y) line_y += self.spacing self.ymax = line_y + self.spacing * 2 context.stroke() + self.clef.draw(window.cairo_create(), self.lmarg * 1.1, self.y, + self.lmarg * 0.3, self.ymax - self.y - self.spacing) @@ -47,8 +47,8 @@ class Track: context.move_to(5, self.linespacing * 10 * len(self.piano.staves) / 2 - height / 2) context.show_layout(layout) - self.piano.draw(context, width, text_width + 10, - rmarg, self.linespacing, window.cairo_create()) + self.piano.draw(window, width, text_width + 10, + rmarg, self.linespacing) #start and end line context.set_line_width(2) |