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opentx/radio/util/font2png.py
2016-02-08 20:56:02 +01:00

100 lines
3.2 KiB
Python
Executable file

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
from PyQt4 import Qt, QtCore, QtGui
import glob
app = Qt.QApplication(sys.argv)
for f in glob.glob("fonts/*.ttf"):
QtGui.QFontDatabase.addApplicationFont(f)
chars = u""" !"#$%&'()*+,-./0123456789:;<=>?°ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz~ ≥→←↑↓↗↘↙↖△"""
def getCharWidth(fontsize, metrics, index):
if index == 0:
return 4
elif index == 14 and fontsize <= 8:
return 1
else:
rect = metrics.boundingRect(chars[index])
if fontsize >= 24:
return rect.width() + 3
else:
return rect.width() + 1
def getFontTopBottom(fontsize, metrics):
top, bottom = 0, 0
for i, c in enumerate(chars):
rect = metrics.boundingRect(chars[i])
top = min(top, rect.top())
bottom = max(bottom, rect.bottom())
return top, bottom
def getFontWidth(fontsize, metrics):
width = 0
for i, c in enumerate(chars):
width += getCharWidth(fontsize, metrics, i)
return width
def createFontBitmap(filename, fontname, fontsize, fontbold, foreground, background, coordsfile=True):
coords = []
font = QtGui.QFont(fontname)
font.setPixelSize(fontsize)
font.setBold(fontbold)
font.setHintingPreference(QtGui.QFont.PreferNoHinting)
font.setStyleStrategy(QtGui.QFont.PreferAntialias)
metrics = QtGui.QFontMetrics(font)
width = getFontWidth(fontsize, metrics)
top, bottom = getFontTopBottom(fontsize, metrics)
extraFilename = "fonts/extra_%dpx.png" % fontsize
extraImage = QtGui.QImage(extraFilename)
if extraImage.isNull():
print("No extra font file", extraFilename)
extraWidth = 0
else:
extraWidth = extraImage.size().width()
image = QtGui.QImage(width + extraWidth, fontsize + 2, QtGui.QImage.Format_RGB32)
image.fill(background)
painter = QtGui.QPainter()
painter.begin(image)
painter.setFont(font)
pen = QtGui.QPen(foreground)
painter.setPen(pen)
width = 0
for i, c in enumerate(chars):
coords.append(width)
if i == 0:
pass
elif i == 14 and fontsize <= 8:
painter.drawPoint(width, fontsize)
else:
rect = metrics.boundingRect(c)
if fontsize >= 24:
painter.drawText(width - rect.left() + 1, fontsize - 2, c) # fontsize-bottom+1 -17 / 7
else:
painter.drawText(width - rect.left(), fontsize - 1, c) # fontsize-bottom+1 -17 / 7
width += getCharWidth(fontsize, metrics, i)
if extraWidth:
painter.drawImage(QtCore.QPoint(width, 0), extraImage)
coords.append(width)
painter.end()
image.save(filename + ".png")
if coordsfile:
with open(filename + ".specs", "w") as f:
f.write("{ ")
f.write(",".join(str(tmp) for tmp in coords))
for i in range(1, 14):
f.write(", %d" % (int(coords[-1]) + i * (extraWidth / 12)))
f.write(" }")
return coords
if __name__ == "__main__":
createFontBitmap(sys.argv[4], sys.argv[1], float(sys.argv[2]), sys.argv[3] == "True", QtGui.QColor(0x00, 0x00, 0x00), QtGui.QColor(0xFF, 0xFF, 0xFF))