def _do_paint_rgb(self, cairo_format, has_alpha, img_data, x, y, width,
height, rowstride, options):
""" must be called from UI thread """
log("cairo._do_paint_rgb(%s, %s, %s bytes,%s,%s,%s,%s,%s,%s)",
cairo_format, has_alpha, len(img_data), x, y, width, height,
rowstride, options)
rgb_format = options.strget("rgb_format", "RGB")
if rgb_format in ("ARGB", ):
#the pixel format is also what cairo expects
#maybe we should also check that the stride is acceptable for cairo?
#cairo_stride = cairo.ImageSurface.format_stride_for_width(cairo_format, width)
#log("cairo_stride=%s, stride=%s", cairo_stride, rowstride)
pix_data = bytearray(img_data)
img_surface = cairo.ImageSurface.create_for_data(
pix_data, cairo_format, width, height, rowstride)
self.cairo_paint_surface(img_surface, x, y, options)
return True
if rgb_format in ("RGBA", "RGBX", "RGB"):
#with GTK2, we can use a pixbuf from RGB(A) pixels
if rgb_format == "RGBA":
#we have to unpremultiply for pixbuf!
img_data = self.unpremultiply(img_data)
#Pixbuf cannot use the memoryview directly:
img_data = memoryview_to_bytes(img_data)
pixbuf = pixbuf_new_from_data(img_data, COLORSPACE_RGB, has_alpha,
8, width, height, rowstride)
self.cairo_paint_pixbuf(pixbuf, x, y, options)
return True
self.nasty_rgb_via_png_paint(cairo_format, has_alpha, img_data, x, y,
width, height, rowstride, rgb_format)
return True
def _do_paint_rgb(self, cairo_format, has_alpha, img_data, x, y, width, height, rowstride, options):
""" must be called from UI thread """
log("cairo._do_paint_rgb(%s, %s, %s bytes,%s,%s,%s,%s,%s,%s)", cairo_format, has_alpha, len(img_data), x, y, width, height, rowstride, options)
rgb_format = options.strget("rgb_format", "RGB")
if rgb_format in ("ARGB", ):
#the pixel format is also what cairo expects
#maybe we should also check that the stride is acceptable for cairo?
#cairo_stride = cairo.ImageSurface.format_stride_for_width(cairo_format, width)
#log("cairo_stride=%s, stride=%s", cairo_stride, rowstride)
pix_data = bytearray(img_data)
img_surface = cairo.ImageSurface.create_for_data(pix_data, cairo_format, width, height, rowstride)
self.cairo_paint_surface(img_surface, x, y)
return True
if rgb_format in ("RGBA", "RGBX", "RGB"):
#with GTK2, we can use a pixbuf from RGB(A) pixels
if rgb_format=="RGBA":
#we have to unpremultiply for pixbuf!
img_data = self.unpremultiply(img_data)
#Pixbuf cannot use the memoryview directly:
img_data = memoryview_to_bytes(img_data)
pixbuf = pixbuf_new_from_data(img_data, COLORSPACE_RGB, has_alpha, 8, width, height, rowstride)
self.cairo_paint_pixbuf(pixbuf, x, y)
return True
self.nasty_rgb_via_png_paint(cairo_format, has_alpha, img_data, x, y, width, height, rowstride, rgb_format)
return True
def cairo_paint_pointer_overlay(context, cursor_data, px, py, start_time):
if not cursor_data:
return
elapsed = max(0, monotonic_time() - start_time)
if elapsed > 6:
return
cw = cursor_data[3]
ch = cursor_data[4]
xhot = cursor_data[5]
yhot = cursor_data[6]
pixels = cursor_data[8]
x = px - xhot
y = py - yhot
alpha = max(0, (5.0 - elapsed) / 5.0)
log("cairo_paint_pointer_overlay%s drawing pointer with cairo, alpha=%s",
(context, x, y, start_time), alpha)
context.translate(x, y)
context.rectangle(0, 0, cw, ch)
argb = unpremultiply_argb(pixels)
img_data = memoryview_to_bytes(argb)
pixbuf = pixbuf_new_from_data(img_data, COLORSPACE_RGB, True, 8, cw, ch,
cw * 4)
context.set_operator(cairo.OPERATOR_OVER)
cairo_set_source_pixbuf(context, pixbuf, 0, 0)
context.paint()
def _do_paint_rgb(self, cairo_format, has_alpha, img_data, x, y, width,
height, rowstride, options):
""" must be called from UI thread """
log("cairo._do_paint_rgb(%s, %s, %s bytes,%s,%s,%s,%s,%s,%s)",
cairo_format, has_alpha, len(img_data), x, y, width, height,
rowstride, options)
rgb_format = options.strget("rgb_format", "RGB")
if _memoryview and isinstance(img_data, _memoryview):
#Pixbuf cannot use the memoryview directly:
img_data = img_data.tobytes()
#"cairo.ImageSurface.create_for_data" is not implemented in GTK3! ARGH!
# http://cairographics.org/documentation/pycairo/3/reference/surfaces.html#cairo.ImageSurface.create_for_data
# "Not yet available in Python 3"
#
#It is available in the cffi cairo bindings, which can be used instead of pycairo
# but then we can't use it from the draw callbacks:
# https://mail.gnome.org/archives/python-hackers-list/2011-December/msg00004.html
# "PyGObject just lacks the glue code that allows it to pass the statically-wrapped
# cairo.Pattern to introspected methods"
if not is_gtk3() and rgb_format in ("ARGB", "XRGB"):
#the pixel format is also what cairo expects
#maybe we should also check that the stride is acceptable for cairo?
#cairo_stride = cairo.ImageSurface.format_stride_for_width(cairo_format, width)
#log("cairo_stride=%s, stride=%s", cairo_stride, rowstride)
img_surface = cairo.ImageSurface.create_for_data(
img_data, cairo_format, width, height, rowstride)
return self.cairo_paint_surface(img_surface, x, y)
if not is_gtk3() and rgb_format in ("RGBA", "RGBX"):
#with GTK2, we can use a pixbuf from RGB(A) pixels
if rgb_format == "RGBA":
#we have to unpremultiply for pixbuf!
img_data = self.unpremultiply(img_data)
pixbuf = pixbuf_new_from_data(img_data, COLORSPACE_RGB, has_alpha,
8, width, height, rowstride)
return self.cairo_paint_pixbuf(pixbuf, x, y)
#PIL fallback
PIL = get_codec("PIL")
if has_alpha:
oformat = "RGBA"
else:
oformat = "RGB"
img = PIL.Image.frombuffer(oformat, (width, height), img_data, "raw",
rgb_format, rowstride, 1)
#This is insane, the code below should work, but it doesn't:
# img_data = bytearray(img.tostring('raw', oformat, 0, 1))
# pixbuf = pixbuf_new_from_data(img_data, COLORSPACE_RGB, True, 8, width, height, rowstride)
# success = self.cairo_paint_pixbuf(pixbuf, x, y)
#So we still rountrip via PNG:
png = BytesIOClass()
img.save(png, format="PNG")
reader = BytesIOClass(png.getvalue())
png.close()
img = cairo.ImageSurface.create_from_png(reader)
return self.cairo_paint_surface(img, x, y)
def set_icon_from_data(self,
pixels,
has_alpha,
w,
h,
rowstride,
options={}):
tray_icon = pixbuf_new_from_data(pixels, COLORSPACE_RGB, has_alpha, 8,
w, h, rowstride)
self.macapp.set_dock_icon_pixbuf(tray_icon)
self.icon_timestamp = monotonic_time()
def _do_paint_rgb(self, cairo_format, has_alpha, img_data, x, y, width, height, rowstride, options):
""" must be called from UI thread """
log("cairo._do_paint_rgb(%s, %s, %s bytes,%s,%s,%s,%s,%s,%s)", cairo_format, has_alpha, len(img_data), x, y, width, height, rowstride, options)
rgb_format = options.strget("rgb_format", "RGB")
if _memoryview and isinstance(img_data, _memoryview):
#Pixbuf cannot use the memoryview directly:
img_data = img_data.tobytes()
#"cairo.ImageSurface.create_for_data" is not implemented in GTK3! ARGH!
# http://cairographics.org/documentation/pycairo/3/reference/surfaces.html#cairo.ImageSurface.create_for_data
# "Not yet available in Python 3"
#
#It is available in the cffi cairo bindings, which can be used instead of pycairo
# but then we can't use it from the draw callbacks:
# https://mail.gnome.org/archives/python-hackers-list/2011-December/msg00004.html
# "PyGObject just lacks the glue code that allows it to pass the statically-wrapped
# cairo.Pattern to introspected methods"
if not is_gtk3() and rgb_format in ("ARGB", "XRGB"):
#the pixel format is also what cairo expects
#maybe we should also check that the stride is acceptable for cairo?
#cairo_stride = cairo.ImageSurface.format_stride_for_width(cairo_format, width)
#log("cairo_stride=%s, stride=%s", cairo_stride, rowstride)
img_surface = cairo.ImageSurface.create_for_data(img_data, cairo_format, width, height, rowstride)
return self.cairo_paint_surface(img_surface, x, y)
if not is_gtk3() and rgb_format in ("RGBA", "RGBX"):
#with GTK2, we can use a pixbuf from RGB(A) pixels
if rgb_format=="RGBA":
#we have to unpremultiply for pixbuf!
img_data = self.unpremultiply(img_data)
pixbuf = pixbuf_new_from_data(img_data, COLORSPACE_RGB, has_alpha, 8, width, height, rowstride)
return self.cairo_paint_pixbuf(pixbuf, x, y)
#PIL fallback
PIL = get_codec("PIL")
if has_alpha:
oformat = "RGBA"
else:
oformat = "RGB"
img = PIL.Image.frombuffer(oformat, (width,height), img_data, "raw", rgb_format, rowstride, 1)
#This is insane, the code below should work, but it doesn't:
# img_data = bytearray(img.tostring('raw', oformat, 0, 1))
# pixbuf = pixbuf_new_from_data(img_data, COLORSPACE_RGB, True, 8, width, height, rowstride)
# success = self.cairo_paint_pixbuf(pixbuf, x, y)
#So we still rountrip via PNG:
png = BytesIOClass()
img.save(png, format="PNG")
reader = BytesIOClass(png.getvalue())
png.close()
img = cairo.ImageSurface.create_from_png(reader)
return self.cairo_paint_surface(img, x, y)
def set_icon_from_data(self, pixels, has_alpha, w, h, rowstride, _options=None):
#use a temporary file (yuk)
from xpra.gtk_common.gtk_util import COLORSPACE_RGB, pixbuf_new_from_data
import tempfile
try:
filename = tempfile.mkstemp(suffix=".png")[1]
log("set_icon_from_data%s using temporary file %s",
("%s pixels" % len(pixels), has_alpha, w, h, rowstride), filename)
tray_icon = pixbuf_new_from_data(pixels, COLORSPACE_RGB, has_alpha, 8, w, h, rowstride)
tray_icon.save(filename, "png")
self.do_set_icon_from_file(filename)
finally:
if DELETE_TEMP_FILE:
os.unlink(filename)
def set_icon_from_data(self, pixels, has_alpha, w, h, rowstride, _options=None):
self.clean_last_tmp_icon()
#use a temporary file (yuk)
from xpra.gtk_common.gtk_util import COLORSPACE_RGB, pixbuf_new_from_data, pixbuf_save_to_memory
import tempfile
tmp_dir = osexpand(get_xpra_tmp_dir())
if not os.path.exists(tmp_dir):
os.mkdir(tmp_dir, 0o755)
self.tmp_filename = tempfile.mkstemp(prefix="tray", suffix=".png", dir=tmp_dir)[1]
log("set_icon_from_data%s using temporary file %s",
("%s pixels" % len(pixels), has_alpha, w, h, rowstride), self.tmp_filename)
tray_icon = pixbuf_new_from_data(pixels, COLORSPACE_RGB, has_alpha, 8, w, h, rowstride)
png_data = pixbuf_save_to_memory(tray_icon)
with open(self.tmp_filename, "wb") as f:
f.write(png_data)
self.do_set_icon_from_file(self.tmp_filename)
def update_icon(self, width, height, coding, data):
log("%s.update_icon(%s, %s, %s, %s bytes)", self, width, height, coding, len(data))
coding = bytestostr(coding)
if coding == "premult_argb32":
if unpremultiply_argb is None:
#we could use PIL here with mode 'RGBa'
log.warn("cannot process premult_argb32 icon without the argb module")
return
#we usually cannot do in-place and this is not performance critical
data = byte_buffer_to_buffer(unpremultiply_argb(data))
pixbuf = pixbuf_new_from_data(data, COLORSPACE_RGB, True, 8, width, height, width*4)
else:
loader = PixbufLoader()
loader.write(data)
loader.close()
pixbuf = loader.get_pixbuf()
log("%s.set_icon(%s)", self, pixbuf)
self.set_icon(pixbuf)
def update_icon(self, width, height, coding, data):
log("%s.update_icon(%s, %s, %s, %s bytes)", self, width, height,
coding, len(data))
coding = bytestostr(coding)
if coding == "premult_argb32":
if unpremultiply_argb is None:
#we could use PIL here with mode 'RGBa'
log.warn(
"cannot process premult_argb32 icon without the argb module"
)
return
#we usually cannot do in-place and this is not performance critical
data = byte_buffer_to_buffer(unpremultiply_argb(data))
pixbuf = pixbuf_new_from_data(data, COLORSPACE_RGB, True, 8, width,
height, width * 4)
else:
loader = PixbufLoader()
loader.write(data)
loader.close()
pixbuf = loader.get_pixbuf()
log("%s.set_icon(%s)", self, pixbuf)
self.set_icon(pixbuf)
