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sprite_factory.py
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sprite_factory.py
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#Copyright (c) 2009, 2010 Walter Bender
#Copyright (c) 2012, Ignacio Rodriguez
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this library; if not, write to the Free Software
# Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA
from gi.repository import Gtk, Gdk, GObject, GdkPixbuf
import pygtk
pygtk.require('2.0')
import os.path
from constants import SHEIGHT, SWIDTH, LEFT, RIGHT, TOP, BOTTOM, TABWIDTH
from sprites import Sprite
class Stator():
""" Create a sprite for a stator """
def __init__(self, sprites, path, name, x, y, w, h, svg_engine=None,
calculate=None, result=None):
if svg_engine is None:
self.spr = Sprite(sprites, x, y, file_to_pixbuf(path, name, w, h))
else:
self.spr = Sprite(sprites, x, y,
svg_str_to_pixbuf(svg_engine().svg))
self.spr.type = name
self.name = name
self.calculate = calculate
self.result = result
def draw(self, layer=1000):
self.spr.set_layer(layer)
def match(self, sprite):
if self.spr == sprite:
return True
return False
def move(self, dx, dy):
self.spr.move((dx, dy))
def move_relative(self, dx, dy):
self.spr.move_relative((dx, dy))
def hide(self):
self.spr.hide()
class Slide(Stator):
""" Create a sprite for a slide """
def __init__(self, sprites, path, name, x, y, w, h, svg_engine=None,
function=None):
if svg_engine is None:
self.spr = Sprite(sprites, x, y, file_to_pixbuf(path, name, w, h))
else:
self.spr = Sprite(sprites, x, y,
svg_str_to_pixbuf(svg_engine().svg))
self.tab_dx = [0, SWIDTH - TABWIDTH]
self.tab_dy = [2 * SHEIGHT, 2 * SHEIGHT]
self.tabs = []
self.tabs.append(Tab(sprites, path, 'tab', x + self.tab_dx[0],
y + self.tab_dy[0], TABWIDTH, SHEIGHT))
self.tabs.append(Tab(sprites, path, 'tab', x + self.tab_dx[1],
y + self.tab_dy[1], TABWIDTH, SHEIGHT))
self.calculate = function
self.name = name
def add_textview(self, textview, i=0):
self.tabs[i].textview = textview
self.tabs[i].textbuffer = textview.get_buffer()
def set_fixed(self, fixed):
for tab in self.tabs:
tab.fixed = fixed
def match(self, sprite):
if sprite == self.spr or sprite == self.tabs[0].spr or \
sprite == self.tabs[1].spr:
return True
return False
def draw(self, layer=1000):
self.spr.set_layer(layer)
self.spr.draw()
for tab in self.tabs:
tab.draw()
def move(self, dx, dy):
self.spr.move((dx, dy))
for i, tab in enumerate(self.tabs):
tab.move(dx + self.tab_dx[i], dy + self.tab_dy[i])
def move_relative(self, dx, dy):
self.spr.move_relative((dx, dy))
for i, tab in enumerate(self.tabs):
tab.move_relative(dx, dy)
def hide(self):
self.spr.hide()
for tab in self.tabs:
tab.hide()
def label(self, label, i=0):
self.tabs[i].label(label)
class Reticule(Slide):
""" Create a sprite for a reticle """
def __init__(self, sprites, path, name, x, y, w, h):
self.spr = Sprite(sprites, x, y, file_to_pixbuf(path, name, w, h))
self.spr.type = name
self.tab_dx = [0, 0]
self.tab_dy = [-SHEIGHT, 2 * SHEIGHT]
self.tabs = []
self.tabs.append(Tab(sprites, path, 'tab', x + self.tab_dx[0],
y + self.tab_dy[0], TABWIDTH, SHEIGHT))
self.tabs[-1].textview_y_offset = int(h / 4)
self.tabs.append(Tab(sprites, path, 'tab', x + self.tab_dx[1],
y + self.tab_dy[1], TABWIDTH, SHEIGHT))
self.name = name
class CustomSlide(Slide):
""" Create a sprite for a custom slide """
def __init__(self, sprites, path, name, x, y, svg_engine, function,
offset, label, min, max, step):
svg = svg_engine(name, offset, label, min, max, step)
self.error_msg = svg.error_msg
self.spr = Sprite(sprites, x, y, svg_str_to_pixbuf(svg.svg))
self.tab_dx = [0, SWIDTH - TABWIDTH]
self.tab_dy = [2 * SHEIGHT, 2 * SHEIGHT]
self.tabs = []
self.tabs.append(Tab(sprites, path, 'tab', x + self.tab_dx[0],
y + self.tab_dy[0], TABWIDTH, SHEIGHT))
self.tabs.append(Tab(sprites, path, 'tab', x + self.tab_dx[1],
y + self.tab_dy[1], TABWIDTH, SHEIGHT))
self.calculate = function
self.name = name
class CustomStator(Stator):
""" Create a sprite for a custom slide """
def __init__(self, sprites, name, x, y, svg_engine, calculate, result,
offset, label, min, max, step):
svg = svg_engine(name, offset, label, min, max, step)
self.error_msg = svg.error_msg
self.spr = Sprite(sprites, x, y, svg_str_to_pixbuf(svg.svg))
self.calculate = calculate
self.result = result
self.name = name
class Tab():
""" Create tabs for the slide; include a TextView for OSK input """
def __init__(self, sprites, path, name, x, y, w, h):
self.spr = Sprite(sprites, x, y, file_to_pixbuf(path, name, w, h))
self.spr.label = "1.0"
self.spr.type = name
self.name = name
self.width = w
self.textview = None
self.textbuffer = None
self.fixed = None
self.textview_y_offset = 0
def label(self, label):
if self.textbuffer is not None:
self.textbuffer.set_text(label)
def _move_textview(self, x, y):
y += self.textview_y_offset
if self.textview is not None:
if x > 0 and x < Gdk.Screen.width() - self.width and y > 0:
self.fixed.move(self.textview, x, y)
self.textview.show()
else:
self.textview.hide()
def move(self, x, y):
self.spr.move((x, y))
self._move_textview(x, y)
def move_relative(self, dx, dy):
self.spr.move_relative((dx, dy))
x, y = self.spr.get_xy()
self._move_textview(x, y)
def draw(self, layer=100):
self.spr.set_layer(layer)
self.spr.draw()
x, y = self.spr.get_xy()
self._move_textview(x, y)
def hide(self):
self.spr.hide()
def file_to_pixbuf(path, name, w, h):
""" Load pixbuf from a file. """
return GdkPixbuf.Pixbuf.new_from_file_at_size(
os.path.join(path, name + '.svg'), int(w), int(h))
def svg_str_to_pixbuf(svg_string):
""" Load pixbuf from SVG string. """
pl = GdkPixbuf.PixbufLoader.new_with_type('svg')
pl.write(svg_string)
pl.close()
pixbuf = pl.get_pixbuf()
return pixbuf