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135 lines
4.0 KiB
Python
135 lines
4.0 KiB
Python
# Copyright (C) 2007, Red Hat, Inc.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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import os
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import gtk
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import pango
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def _get_screen_dpi():
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xft_dpi = gtk.settings_get_default().get_property('gtk-xft-dpi')
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return float(xft_dpi / 1024)
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def _compute_zoom_factor():
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if os.environ.has_key('SUGAR_XO_STYLE'):
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if os.environ['SUGAR_XO_STYLE'] == 'yes':
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return 1.0
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return gtk.gdk.screen_width() / 1200.0
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def zoom(units):
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return int(ZOOM_FACTOR * units)
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def _compute_font_height(font):
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widget = gtk.Label('')
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context = widget.get_pango_context()
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pango_font = context.load_font(font.get_pango_desc())
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metrics = pango_font.get_metrics()
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return pango.PIXELS(metrics.get_ascent() + metrics.get_descent())
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class Font(object):
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def __init__(self, desc):
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self._desc = desc
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def __str__(self):
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return self._desc
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def get_pango_desc(self):
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return pango.FontDescription(self._desc)
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class Color(object):
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def __init__(self, color, alpha=1.0):
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self._r, self._g, self._b = self._html_to_rgb(color)
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self._a = alpha
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def get_rgba(self):
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return (self._r, self._g, self._b, self._a)
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def get_int(self):
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return int(self._a * 255) + (int(self._b * 255) << 8) + \
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(int(self._g * 255) << 16) + (int(self._r * 255) << 24)
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def get_gdk_color(self):
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return gtk.gdk.Color(int(self._r * 65535), int(self._g * 65535),
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int(self._b * 65535))
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def get_html(self):
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return '#%02x%02x%02x' % (self._r * 255, self._g * 255, self._b * 255)
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def _html_to_rgb(self, html_color):
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""" #RRGGBB -> (r, g, b) tuple (in float format) """
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html_color = html_color.strip()
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if html_color[0] == '#':
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html_color = html_color[1:]
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if len(html_color) != 6:
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raise ValueError, "input #%s is not in #RRGGBB format" % html_color
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r, g, b = html_color[:2], html_color[2:4], html_color[4:]
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r, g, b = [int(n, 16) for n in (r, g, b)]
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r, g, b = (r / 255.0, g / 255.0, b / 255.0)
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return (r, g, b)
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def get_svg(self):
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if self._a == 0.0:
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return 'none'
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else:
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return self.get_html()
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_XO_DPI = 200.0
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_FOCUS_LINE_WIDTH = 2
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_TAB_CURVATURE = 1
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ZOOM_FACTOR = _compute_zoom_factor()
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DEFAULT_SPACING = zoom(8)
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DEFAULT_PADDING = zoom(6)
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GRID_CELL_SIZE = zoom(75)
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LINE_WIDTH = zoom(2)
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STANDARD_ICON_SIZE = zoom(55)
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SMALL_ICON_SIZE = zoom(55 * 0.5)
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MEDIUM_ICON_SIZE = zoom(55 * 1.5)
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LARGE_ICON_SIZE = zoom(55 * 2.0)
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XLARGE_ICON_SIZE = zoom(55 * 2.75)
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FONT_SIZE = zoom(7 * _XO_DPI / _get_screen_dpi())
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FONT_NORMAL = Font('Bitstream Vera Sans %d' % FONT_SIZE)
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FONT_BOLD = Font('Bitstream Vera Sans bold %d' % FONT_SIZE)
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FONT_NORMAL_H = _compute_font_height(FONT_NORMAL)
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FONT_BOLD_H = _compute_font_height(FONT_BOLD)
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TOOLBOX_SEPARATOR_HEIGHT = zoom(9)
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TOOLBOX_HORIZONTAL_PADDING = zoom(75)
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TOOLBOX_TAB_VBORDER = int((zoom(36) - FONT_NORMAL_H - _FOCUS_LINE_WIDTH) / 2)
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TOOLBOX_TAB_HBORDER = zoom(15) - _FOCUS_LINE_WIDTH - _TAB_CURVATURE
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TOOLBOX_TAB_LABEL_WIDTH = zoom(150 - 15 * 2)
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COLOR_BLACK = Color('#000000')
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COLOR_WHITE = Color('#FFFFFF')
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COLOR_TRANSPARENT = Color('#FFFFFF', alpha=0.0)
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COLOR_PANEL_GREY = Color('#C0C0C0')
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COLOR_SELECTION_GREY = Color('#A6A6A6')
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COLOR_INACTIVE_FILL = Color('#9D9FA1')
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COLOR_INACTIVE_STROKE = Color('#757575')
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PALETTE_CURSOR_DISTANCE = zoom(10)
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