def set_ctx_color(ctx, color):
if isinstance(color, tuple):
ctx.set_source_rgba(*color)
elif isinstance(color, Color):
ctx.set_source_rgba(*color.get_array())
elif isinstance(color, str):
ctx.set_source_rgba(*Color.from_html(color).get_array())
else:
ctx.set_source(color)
def draw_fill(ctx, color=Color(1, 1, 1,1)):
ctx.save()
if isinstance(color, Color):
ctx.set_source_rgba(*color.get_array())
elif isinstance(color, str):
ctx.set_source_rgba(*Color.from_html(color).get_array())
elif isinstance(color, cairo.Pattern):
ctx.set_source(color)
ctx.fill()
ctx.restore()
def draw_stroke(ctx, line_width, color=Color(0,0,0,1)):
ctx.save()
if isinstance(color, Color):
ctx.set_source_rgba(*color.get_array())
elif isinstance(color, str):
ctx.set_source_rgba(*Color.from_html(color).get_array())
else:
ctx.set_source(color)
ctx.set_line_width(line_width)
ctx.stroke()
ctx.restore()
def draw_text(ctx, text,
x, y, width=None, corner=5, align=None, fit_width=False,
height=None, fit_height=False,
text_color=None, back_color=None, border_color=None, border_width=1,
padding=0, font_name=None, pre_draw=None):
layout = PangoCairo.create_layout(ctx)
font = Pango.FontDescription.from_string(font_name)
layout.set_wrap(Pango.WrapMode(0))
layout.set_font_description(font)
layout.set_alignment(Pango.Alignment(0))
layout.set_markup(text)
text_rect = layout.get_pixel_extents()[1]
l = text_rect.x
t = text_rect.y
w= text_rect.width
h = text_rect.height
scale_x = 1
scale_y = 1
if width:
if width<w:
if fit_width:
scale_x = width/float(w)
else:
layout.set_width(int(width*Pango.SCALE))
#w = width
else:
width = w
if height:
if height<h:
if fit_height:
scale_y = height/float(h)
else:
h = height
else:
height = 0
if align:
if align.find("bottom-center")>=0:
y -= t+h*scale_y+2*padding
elif align.find("bottom")>=0:
y -= -t+h*scale_y+padding
if align.find("right")>=0:
x -= w*scale_x+padding
elif align.find("hcenter")>=0:
x -= (w*scale_x+padding)*.5
if back_color:
ctx.save()
if pre_draw: pre_draw(ctx)
ctx.translate(x, y)
ctx.scale(scale_x, scale_y)
draw_rounded_rectangle(ctx, 0, 0, w+2*padding, h+2*padding, corner)
ctx.restore()
draw_fill(ctx, back_color)
if border_color:
ctx.save()
if pre_draw: pre_draw(ctx)
ctx.translate(x, y)
ctx.scale(scale_x, scale_y)
draw_rounded_rectangle(ctx, 0, 0, w+2*padding, h+2*padding, corner)
ctx.restore()
draw_stroke(ctx, border_width, border_color)
if not text_color:
ctx.set_source_rgba(0,0,0,1)
elif isinstance(text_color, Color):
ctx.set_source_rgba(*text_color.get_array())
elif type(text_color) is str:
ctx.set_source_rgba(*Color.from_html(text_color).get_array())
ctx.save()
if pre_draw: pre_draw(ctx)
ctx.translate(x, y)
ctx.move_to(padding, padding)
ctx.scale(scale_x, scale_y)
PangoCairo.show_layout(ctx, layout)
ctx.restore()
return Rect(x, y, w+2*padding, h+2*padding)
