def set(self, U=None, vmin=None, vmax=None):
# normalize U
fm = QFontMetrics(self.font())
self.vmin = vmin if vmin is not None else (
np.min(U) if U is not None else 0.)
self.vmax = vmax if vmax is not None else (
np.max(U) if U is not None else 1.)
difference = abs(self.vmin - self.vmax)
if difference == 0:
precision = 3
else:
precision = m.log(
max(abs(self.vmin), abs(self.vmax)) / difference, 10) + 1
precision = int(min(max(precision, 3), 8))
self.vmin_str = format(
('{:.' + str(precision) + '}').format(self.vmin))
self.vmax_str = format(
('{:.' + str(precision) + '}').format(self.vmax))
self.vmin_width = fm.width(self.vmin_str)
self.vmax_width = fm.width(self.vmax_str)
self.text_height = fm.height() * 1.5
self.text_ascent = fm.ascent() * 1.5
self.text_descent = fm.descent() * 1.5
self.setMinimumSize(
max(self.vmin_width, self.vmax_width) + 20, 300)
self.update()
def set(self, U=None, vmin=None, vmax=None):
# normalize U
fm = QFontMetrics(self.font())
self.vmin = vmin if vmin is not None else (np.min(U) if U is not None else 0.)
self.vmax = vmax if vmax is not None else (np.max(U) if U is not None else 1.)
precision = m.log(max(abs(self.vmin), abs(self.vmax) / abs(self.vmin - self.vmax)), 10) + 1
precision = int(min(max(precision, 3), 8))
self.vmin_str = format(('{:.' + str(precision) + '}').format(self.vmin))
self.vmax_str = format(('{:.' + str(precision) + '}').format(self.vmax))
self.vmin_width = fm.width(self.vmin_str)
self.vmax_width = fm.width(self.vmax_str)
self.text_height = fm.height() * 1.5
self.text_ascent = fm.ascent() * 1.5
self.text_descent = fm.descent() * 1.5
self.setMinimumSize(max(self.vmin_width, self.vmax_width) + 20, 300)
self.update()
def add_labels_internal(self, gl, render_state, draw_to_canvas, labels):
'''
call to add a list of labels
'''
text_paint = QPainter()
if draw_to_canvas:
text_paint.begin(self.bitmap)
text_paint.setRenderHints(QPainter.Antialiasing)
u = 0
v = 0
line_height = 0
for label in labels:
ascent = 0
descent = 0
measured_text_width = 0
height = 0
width = 0
font_size = label.font_size
while True:
metrics = None
if draw_to_canvas:
mask = 0x000000FF
b = (label.color >> 16) & mask
g = (label.color >> 8) & mask
r = label.color & mask
######################################################################## LINE CHANGED
text_paint.setPen(QColor(0, 0, 0))
#text_paint.setPen(QColor(r, g, b))
# The value 0.75 is hard coded representing phone pixel density
text_paint.setFont(QFont('Veranda', font_size * 0.75))
# Paint.ascent is negative, so negate it.
metrics = text_paint.fontMetrics()
else:
# The value 0.75 is hard coded representing phone pixel density
metrics = QFontMetrics(QFont('Veranda', font_size * 0.75))
ascent = math.ceil(metrics.ascent())
descent = math.ceil(metrics.descent())
measured_text_width = math.ceil(metrics.boundingRect(label.string).width())
height = int(ascent) + int(descent)
width = int(measured_text_width)
# If it's wider than the screen, try it again with a font size of 1
# smaller.
font_size -= 1
if font_size < 0 or width < render_state.screen_width:
break
next_u = 0
# Is there room for this string on the current line?
if u + width > self.strike_width:
# No room, go to the next line:
u = 0
next_u = width
v += line_height
line_height = 0
else:
next_u = u + width
line_height = max(line_height, height)
if (v + line_height > self.strike_height) and draw_to_canvas:
raise Exception("out of texture space.")
v_base = v + ascent
if draw_to_canvas:
text_paint.drawText(int(u), int(v_base), label.string)
label.set_texture_data(width, height, u, v + height, width, -height,
self.texel_width, self.texel_height)
u = next_u
if draw_to_canvas:
text_paint.end()
return v + line_height
