def __del__(self):
try:
if self._matrix:
res = gdiplus.GdipDeleteMatrix(self._matrix)
if self._brush:
res = gdiplus.GdipDeleteBrush(self._brush)
if self._graphics:
res = gdiplus.GdipDeleteGraphics(self._graphics)
if self._bitmap:
res = gdiplus.GdipDisposeImage(self._bitmap)
if self._dc:
res = user32.ReleaseDC(0, self._dc)
except:
pass
def __init__(self, name, size, bold=False, italic=False, dpi=None):
super(Win32Font, self).__init__()
self.logfont = self.get_logfont(name, size, bold, italic, dpi)
self.hfont = gdi32.CreateFontIndirectA(byref(self.logfont))
# Create a dummy DC for coordinate mapping
dc = user32.GetDC(0)
metrics = TEXTMETRIC()
gdi32.SelectObject(dc, self.hfont)
gdi32.GetTextMetricsA(dc, byref(metrics))
self.ascent = metrics.tmAscent
self.descent = -metrics.tmDescent
self.max_glyph_width = metrics.tmMaxCharWidth
user32.ReleaseDC(0, dc)
def get_logfont(name, size, bold, italic, dpi):
# Create a dummy DC for coordinate mapping
dc = user32.GetDC(0)
if dpi is None:
dpi = 96
logpixelsy = dpi
logfont = LOGFONT()
# Conversion of point size to device pixels
logfont.lfHeight = int(-size * logpixelsy // 72)
if bold:
logfont.lfWeight = FW_BOLD
else:
logfont.lfWeight = FW_NORMAL
logfont.lfItalic = italic
logfont.lfFaceName = asbytes(name)
logfont.lfQuality = ANTIALIASED_QUALITY
user32.ReleaseDC(0, dc)
return logfont
def get_icon(image):
# Alpha-blended icon: see http://support.microsoft.com/kb/318876
format = 'BGRA'
pitch = len(format) * image.width
header = BITMAPV5HEADER()
header.bV5Size = sizeof(header)
header.bV5Width = image.width
header.bV5Height = image.height
header.bV5Planes = 1
header.bV5BitCount = 32
header.bV5Compression = BI_BITFIELDS
header.bV5RedMask = 0x00ff0000
header.bV5GreenMask = 0x0000ff00
header.bV5BlueMask = 0x000000ff
header.bV5AlphaMask = 0xff000000
hdc = _user32.GetDC(None)
dataptr = c_void_p()
bitmap = _gdi32.CreateDIBSection(hdc,
byref(header), DIB_RGB_COLORS,
byref(dataptr), None, 0)
_user32.ReleaseDC(None, hdc)
image = image.get_image_data()
data = image.get_data(format, pitch)
memmove(dataptr, data, len(data))
mask = _gdi32.CreateBitmap(image.width, image.height, 1, 1, None)
iconinfo = ICONINFO()
iconinfo.fIcon = True
iconinfo.hbmMask = mask
iconinfo.hbmColor = bitmap
icon = _user32.CreateIconIndirect(byref(iconinfo))
_gdi32.DeleteObject(mask)
_gdi32.DeleteObject(bitmap)
return icon
def _create_cursor_from_image(self, cursor):
"""Creates platform cursor from an ImageCursor instance."""
fmt = 'BGRA'
image = cursor.texture
pitch = len(fmt) * image.width
header = BITMAPINFOHEADER()
header.biSize = sizeof(header)
header.biWidth = image.width
header.biHeight = image.height
header.biPlanes = 1
header.biBitCount = 32
hdc = _user32.GetDC(None)
dataptr = c_void_p()
bitmap = _gdi32.CreateDIBSection(hdc, byref(header), DIB_RGB_COLORS,
byref(dataptr), None, 0)
_user32.ReleaseDC(None, hdc)
image = image.get_image_data()
data = image.get_data(fmt, pitch)
memmove(dataptr, data, len(data))
mask = _gdi32.CreateBitmap(image.width, image.height, 1, 1, None)
iconinfo = ICONINFO()
iconinfo.fIcon = False
iconinfo.hbmMask = mask
iconinfo.hbmColor = bitmap
iconinfo.xHotspot = int(cursor.hot_x)
iconinfo.yHotspot = int(image.height - cursor.hot_y)
icon = _user32.CreateIconIndirect(byref(iconinfo))
_gdi32.DeleteObject(mask)
_gdi32.DeleteObject(bitmap)
return icon
