def makeRasterFont(self): GL.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, 1) self.fontOffset = GL.glGenLists(128) for i in range(32, 127): GL.glNewList(i + self.fontOffset, GL.GL_COMPILE) GL.glBitmap(8, 13, 0.0, 2.0, 10.0, 0.0, self.rasters[i-32]) GL.glEndList()
def makeRasterFont(self):
GL.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, 1)
self.fontOffset = GL.glGenLists(128)
for i in range(32, 127):
GL.glNewList(i + self.fontOffset, GL.GL_COMPILE)
GL.glBitmap(8, 13, 0.0, 2.0, 10.0, 0.0, self.rasters[i - 32])
GL.glEndList()
def drawGL(self,mode='wireframe',color=None):
if self.color is not None:
GL.glColor3fv(self.color)
GL.glPixelStorei(GL.GL_UNPACK_ALIGNMENT,1)
GL.glRasterPos3fv(self.pos)
a = 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x80
b = 0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00
bitmap = [b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,a,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b]
GL.glBitmap(81,81,41,41,0,0,bitmap)
def drawGL(self,**kargs):
if self.color is not None:
GL.glColor3fv(self.color)
GL.glPixelStorei(GL.GL_UNPACK_ALIGNMENT,1)
GL.glRasterPos3fv(self.pos)
a = 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0x80
b = 0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00
bitmap = [b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,a,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b,b]
GL.glBitmap(81,81,41,41,0,0,bitmap)
def use_pango_font(font, start, count, will_call_prepost=False):
import gi
gi.require_version('Pango', '1.0')
gi.require_version('PangoCairo', '1.0')
from gi.repository import Pango
from gi.repository import PangoCairo
#from gi.repository import Cairo as cairo
import cairo
fontDesc = Pango.FontDescription(font)
a = array.array('b', itertools.repeat(0, 256 * 256))
surface = cairo.ImageSurface.create_for_data(a, cairo.FORMAT_A8, 256, 256)
context = cairo.Context(surface)
pango_context = PangoCairo.create_context(context)
layout = PangoCairo.create_layout(context)
fontmap = PangoCairo.font_map_get_default()
font = fontmap.load_font(fontmap.create_context(), fontDesc)
layout.set_font_description(fontDesc)
metrics = font.get_metrics()
descent = metrics.get_descent()
d = descent / Pango.SCALE
linespace = metrics.get_ascent() + metrics.get_descent()
width = metrics.get_approximate_char_width()
GL.glPushClientAttrib(GL.GL_CLIENT_PIXEL_STORE_BIT)
GL.glPixelStorei(GL.GL_UNPACK_SWAP_BYTES, 0)
GL.glPixelStorei(GL.GL_UNPACK_LSB_FIRST, 1)
GL.glPixelStorei(GL.GL_UNPACK_ROW_LENGTH, 256)
GL.glPixelStorei(GL.GL_UNPACK_IMAGE_HEIGHT, 256)
GL.glPixelStorei(GL.GL_UNPACK_SKIP_PIXELS, 0)
GL.glPixelStorei(GL.GL_UNPACK_SKIP_ROWS, 0)
GL.glPixelStorei(GL.GL_UNPACK_SKIP_IMAGES, 0)
GL.glPixelStorei(GL.GL_UNPACK_ALIGNMENT, 1)
GL.glPixelZoom(1, -1)
base = GL.glGenLists(count)
for i in range(count):
ch = chr(start + i)
layout.set_text(ch, -1)
w, h = layout.get_size()
context.save()
context.new_path()
context.rectangle(0, 0, 256, 256)
context.set_source_rgba(0., 0., 0., 0.)
context.set_operator(cairo.OPERATOR_SOURCE)
context.paint()
context.restore()
context.save()
context.set_source_rgba(1., 1., 1., 1.)
context.set_operator(cairo.OPERATOR_SOURCE)
context.move_to(0, 0)
PangoCairo.update_context(context, pango_context)
PangoCairo.show_layout(context, layout)
context.restore()
w, h = int(w / Pango.SCALE), int(h / Pango.SCALE)
GL.glNewList(base + i, GL.GL_COMPILE)
GL.glBitmap(0, 0, 0, 0, 0, h - d, ''.encode())
#glDrawPixels(0, 0, 0, 0, 0, h-d, '');
if not will_call_prepost:
pango_font_pre()
if w and h:
try:
pass
GL.glDrawPixels(w, h, GL.GL_LUMINANCE, GL.GL_UNSIGNED_BYTE,
a.tobytes())
except Exception as e:
print("glnav Exception ", e)
GL.glBitmap(0, 0, 0, 0, w, -h + d, ''.encode())
if not will_call_prepost:
pango_font_post()
GL.glEndList()
GL.glPopClientAttrib()
return base, int(width / Pango.SCALE), int(linespace / Pango.SCALE)
