def testFromDataMethod(self):
dataBits = py3k.b('\x38\x28\x38\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\xfe\xfe\x7c\x7c\x38\x38\x10\x10')
bim = QBitmap.fromData(QSize(8, 48), dataBits, QImage.Format_Mono) # missing function
class LabelMaker(object):
'''
Creates a texture and paints text on top of it. This is then rendered
within an appropriately coloured rectangle.
'''
class LabelData(object):
'''
A class which contains data that describes a label and
its position in the texture.
'''
def set_texture_data(self, width_pixels, height_pixels,
crop_u, crop_v, crop_w, crop_h,
texel_width, texel_height):
self.width_in_pixels = width_pixels
self.height_in_pixels = height_pixels
text_coords_list = [0.0]*8
# lower left
text_coords_list[0] = crop_u * texel_width
text_coords_list[1] = crop_v * texel_height
# upper left
text_coords_list[2] = crop_u * texel_width
text_coords_list[3] = (crop_v + crop_h) * texel_height
# lower right
text_coords_list[4] = (crop_u + crop_w) * texel_width
text_coords_list[5] = crop_v * texel_height
# upper right
text_coords_list[6] = (crop_u + crop_w) * texel_width
text_coords_list[7] = (crop_v + crop_h) * texel_height
self.text_coords = np.array(text_coords_list, dtype=np.float32)
self.crop = [crop_u, crop_v, crop_w, crop_h]
def __init__(self, m_string='', m_color=0xFFFFFFFF, m_font_size=24):
'''
constructor
'''
self.string = m_string
self.color = m_color
self.font_size = m_font_size
self.width_in_pixels = 0
self.height_in_pixels = 0
self.text_coords = None
self.crop = None
def initialize(self, gl, render_state, labels, texture_manager):
'''
Call to initialize the class. Call whenever the surface has been created.
'''
self.texture = texture_manager.create_texture(gl)
self.texture.bind(gl)
gl.glTexParameterf(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MIN_FILTER,
gl.GL_NEAREST)
gl.glTexParameterf(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_MAG_FILTER,
gl.GL_NEAREST)
gl.glTexParameterf(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_WRAP_S,
gl.GL_CLAMP_TO_EDGE)
gl.glTexParameterf(gl.GL_TEXTURE_2D, gl.GL_TEXTURE_WRAP_T,
gl.GL_CLAMP_TO_EDGE)
gl.glTexEnvf(gl.GL_TEXTURE_ENV, gl.GL_TEXTURE_ENV_MODE, gl.GL_REPLACE)
min_height = self.add_labels_internal(gl, render_state, False, labels)
# Round up to the nearest power of two, since textures have to be a power of two in size.
rounded_height = 1
while rounded_height < min_height:
rounded_height <<= 1
self.strike_height = rounded_height;
self.texel_width = (1.0 / float(self.strike_width))
self.texel_height = (1.0 / float(self.strike_height))
self.begin_adding(gl)
self.add_labels_internal(gl, render_state, True, labels)
self.end_adding(gl)
return self.texture
def shutdown(self, gl):
'''
Call when the surface has been destroyed
'''
if self.texture == None:
self.texture.delete(gl)
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
def begin_adding(self, gl):
#Bitmap.Config config = mFullColor ? Bitmap.Config.ARGB_4444 : Bitmap.Config.ALPHA_8
#mBitmap = Bitmap.createBitmap(mStrikeWidth, mStrikeHeight, config)
self.bitmap = QBitmap(self.strike_width, self.strike_height)
self.bitmap.clear()
def end_adding(self, gl):
self.texture.bind(gl)
'''
IMPORTANT IMPORTANT IMPORTANT IMPORTANT IMPORTANT IMPORTANT
The image has to be mirrored for some reason
'''
img = QImage(self.bitmap.toImage()).mirrored()
img = QGLWidget.convertToGLFormat(img)
gl.glTexImage2D(gl.GL_TEXTURE_2D, 0, gl.GL_RGB, img.width(), img.height(), 0, gl.GL_RGBA,
gl.GL_UNSIGNED_BYTE, str(img.bits()))
# This particular bitmap is no longer needed
self.bitmap = None
def __init__(self, color_bool):
'''
Constructor
'''
self.strike_height = -1
self.strike_width = 512
self.full_color = color_bool
self.bitmap = None
self.texture = None
self.texel_height = None # convert texel to V
self.texel_width = None # convert texel to U
def testQCursorConstructor(self):
bmp = QBitmap(16, 16)
cursor = QCursor(bmp, bmp, 16, 16)
def begin_adding(self, gl):
#Bitmap.Config config = mFullColor ? Bitmap.Config.ARGB_4444 : Bitmap.Config.ALPHA_8
#mBitmap = Bitmap.createBitmap(mStrikeWidth, mStrikeHeight, config)
self.bitmap = QBitmap(self.strike_width, self.strike_height)
self.bitmap.clear()
def testFromDataMethod(self):
dataBits = py3k.b('\x38\x28\x38\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\x10\xfe\xfe\x7c\x7c\x38\x38\x10\x10')
bim = QBitmap.fromData(QSize(8, 48), dataBits, QImage.Format_Mono) # missing function
