def on_system_paint(self, ev):
bitmap = self.bitmap
painter = Painter(self.bitmap)
border = self.border_width()
width = self.window_width()
height = self.window_height()
caption_color = SteelBlue if self.active() else LightSteelBlue
border_color = 0xaaffffff & caption_color
if self.attr() & WND_TRANSPARENT:
painter.clear()
else:
painter.fill_rect(self.margin_left(), self.margin_top(),
self.width(), self.height(), White)
if self.attr() & WND_FRAME:
rc = Rect(0, 0, self.window_width() - 1, self.window_height() - 1)
max_alpha = 40 if self.active() else 20
dalpha = max_alpha / DEFAULT_BORDER_WIDTH
for i in xrange(DEFAULT_BORDER_WIDTH - 1):
painter.set_pen_color(i * dalpha << 24)
painter.draw_rect(rc)
rc.adjust(1, 1, -1, -1)
painter.set_pen_color(caption_color)
painter.draw_rect(rc)
if self.attr() & WND_CAPTION:
# fill caption
caption_color &= 0xddffffff
caption_rc = Rect(border, border, width - 2 * border,
self.caption_height())
painter.fill_rect(rc, caption_color)
# draw title
painter.set_pen_color(White)
rc = caption_rc.translated(10, 0)
painter.draw_text(rc, Painter.AlignLeft | Painter.AlignVCenter,
self.title_)
# draw close/maximize/minimize
painter.save()
painter.set_pen_color(DarkWhite)
painter.set_render_hint(Painter.Antialiasing)
# close
painter.set_pen_width(2)
rc = Rect(self.close_rect())
painter.draw_line(rc.top_left(), rc.bottom_right())
painter.draw_line(rc.top_right(), rc.bottom_left())
# maximize
painter.draw_rect(Rect(self.maximize_rect()))
# minimize
rc = Rect(self.minimize_rect())
painter.draw_line(rc.bottom_left(), rc.bottom_right())
painter.restore()
class MathFrac(MultiItem):
"""Container for inline maths"""
def __init__(self, num = None, denom = None):
MultiItem.__init__(self)
self.style = 'math-var', 1
if num:
if not denom:
denom = MathNumber('1')
self.appendItem(num)
self.appendItem(denom)
def resizePDF(self, pdf, x = 0, y = 0):
if len(self.items) < 2 or not self.items[0] or not self.items[1]:
raise Exception('MathFrac must have two items.')
self.rect = Rect(x,y,x,y)
dx = pdf.get_string_width(' ') * self.style[1]
self.margins.set(dx, 0.0)
setFontPDF(pdf, self.style, self.styles)
lineHeight = pdf.font_size_pt / pdf.k
numerator = self.items[0]
if hasattr(numerator,'style'):
setFontPDF(pdf, numerator.style, self.styles)
numerator.resizePDF(pdf,x + dx, y - lineHeight * 0.5)
denominator = self.items[1]
if hasattr(denominator,'style'):
setFontPDF(pdf, denominator.style, self.styles)
denominator.resizePDF(pdf, x + dx, numerator.rect.y1())
if numerator.rect.width() > denominator.rect.width():
denominator.rect.alignXCenter(numerator.rect)
else:
numerator.rect.alignXCenter(denominator.rect)
self.rect.unite(numerator.rect)
self.rect.unite(denominator.rect)
self.rect.adjust(rect.Point(0,0),rect.Point(dx,0))
def cellPDF(self, pdf, r = None):
MultiItem.cellPDF(self, pdf, r)
y = self.items[0].rect.y1()
pdf.set_line_width(0.2)
if r:
x_shift = r.x0()
y_shift = r.y0()
else:
x_shift = 0.0
y_shift = 0.0
pdf.line(self.rect.x0() - x_shift, y - y_shift, self.rect.x1() - x_shift, y - y_shift)
