def create_cover_page(top_lines,
logo_path,
width=590,
height=750,
bgcolor='#ffffff',
output_format='jpg',
texture_data=None,
texture_opacity=1.0):
'''
Create the standard calibre cover page and return it as a byte string in
the specified output_format.
'''
canvas = create_canvas(width, height, bgcolor)
if texture_data and hasattr(canvas, 'texture'):
texture = Image()
texture.load(texture_data)
texture.set_opacity(texture_opacity)
canvas.texture(texture)
bottom = 10
for line in top_lines:
twand = create_text_wand(line.font_size, font_path=line.font_path)
bottom = draw_centered_text(canvas, twand, line.text, bottom)
bottom += line.bottom_margin
bottom -= top_lines[-1].bottom_margin
foot_font = tweaks['generate_cover_foot_font']
if not foot_font:
foot_font = P('fonts/liberation/LiberationMono-Regular.ttf')
vanity = create_text_arc(__appname__ + ' ' + __version__,
24,
font=foot_font,
bgcolor='#00000000')
lwidth, lheight = vanity.size
left = int(max(0, (width - lwidth) / 2.))
top = height - lheight - 10
canvas.compose(vanity, left, top)
available = (width, int(top - bottom) - 20)
if available[1] > 40:
logo = Image()
logo.open(logo_path)
lwidth, lheight = logo.size
scaled, lwidth, lheight = fit_image(lwidth, lheight, *available)
if scaled:
logo.size = (lwidth, lheight)
left = int(max(0, (width - lwidth) / 2.))
top = bottom + 10
extra = int((available[1] - lheight) / 2.0)
if extra > 0:
top += extra
canvas.compose(logo, left, top)
return canvas.export(output_format)
def create_cover_page(
top_lines,
logo_path,
width=590,
height=750,
bgcolor="#ffffff",
output_format="jpg",
texture_data=None,
texture_opacity=1.0,
):
"""
Create the standard calibre cover page and return it as a byte string in
the specified output_format.
"""
canvas = create_canvas(width, height, bgcolor)
if texture_data and hasattr(canvas, "texture"):
texture = Image()
texture.load(texture_data)
texture.set_opacity(texture_opacity)
canvas.texture(texture)
bottom = 10
for line in top_lines:
twand = create_text_wand(line.font_size, font_path=line.font_path)
bottom = draw_centered_text(canvas, twand, line.text, bottom)
bottom += line.bottom_margin
bottom -= top_lines[-1].bottom_margin
foot_font = P("fonts/liberation/LiberationMono-Regular.ttf")
vanity = create_text_arc(__appname__ + " " + __version__, 24, font=foot_font, bgcolor="#00000000")
lwidth, lheight = vanity.size
left = int(max(0, (width - lwidth) / 2.0))
top = height - lheight - 10
canvas.compose(vanity, left, top)
available = (width, int(top - bottom) - 20)
if available[1] > 40:
logo = Image()
logo.open(logo_path)
lwidth, lheight = logo.size
scaled, lwidth, lheight = fit_image(lwidth, lheight, *available)
if scaled:
logo.size = (lwidth, lheight)
left = int(max(0, (width - lwidth) / 2.0))
top = bottom + 10
extra = int((available[1] - lheight) / 2.0)
if extra > 0:
top += extra
canvas.compose(logo, left, top)
return canvas.export(output_format)
