def load_fonts():
from qtpy import QtGui
database = QtGui.QFontDatabase()
for font in FONTFILES:
database.addApplicationFont(font)
font = database.font("Ubuntu", "normal", 12)
return font
def font_is_installed(font):
"""Check if font is installed"""
from qtpy import QtGui as QG
return [
fam for fam in QG.QFontDatabase().families()
if to_text_string(fam) == font
]
def addFont(self, font_size):
with self._vao:
font = TextRenderer.Font()
font.size = font_size
db = QtGui.QFontDatabase()
qfont = db.systemFont(db.FixedFont)
if font_size > 0:
qfont.setPointSize(font_size)
else:
self.fonts[0] = font
self.fonts[qfont.pointSize()] = font
metrics = QtGui.QFontMetrics(qfont)
font.width = metrics.width("W")
font.height = metrics.height()
font.tex_width = (1 + 128 - 32) * font.width
font.tex_width = (font.tex_width +
3) // 4 * 4 # should be multiple of 4
font.tex_height = metrics.height()
for i in range(32, 128):
c = bytes([i]).decode()
image = QtGui.QImage(font.tex_width, font.tex_height,
QtGui.QImage.Format_Grayscale8)
image.fill(QtCore.Qt.black)
painter = QtGui.QPainter()
painter.begin(image)
painter.setFont(qfont)
painter.setPen(QtCore.Qt.white)
for i in range(32, 128):
w = font.width
text = bytes([i]).decode()
painter.drawText(
(i - 32) * w, 0, (i + 1 - 32) * w, font.height,
QtCore.Qt.AlignTop | QtCore.Qt.AlignLeft, text)
painter.end()
ptr = image.constBits()
if qtpy.API == "pyqt5":
ptr.setsize(image.byteCount())
Z = numpy.array(ptr).reshape(font.tex_height, font.tex_width)
font.tex = Texture(GL_TEXTURE_2D, GL_RED)
font.tex.store(Z, GL_UNSIGNED_BYTE, Z.shape[1], Z.shape[0])
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST)
def headerData(self, index, orientation, role=None):
if orientation == Qt.Horizontal:
return self._get_horizontal_header_data(index, role)
else:
return self._get_vertical_header_data(index, role)
def flags(self, index):
row, col = index.row(), index.column()
return self._flags_data[row, col]
if __name__ == '__main__':
import sys
app = QtWidgets.QApplication([])
db = QtGui.QFontDatabase()
combo = QtWidgets.QComboBox()
families = db.families()
for i in range(len(families)):
family = families[i]
combo.addItem(family)
combo.setItemData(i, family, Qt.FontRole)
combo.show()
sys.exit(app.exec_())