def load_image(self, path):
if path.startswith(('http://', 'https://')):
self.native = NSImage.alloc().initByReferencingURL(
NSURL.URLWithString_(path))
else:
self.native = NSImage.alloc().initWithContentsOfFile(
self._get_full_path(path))
def __init__(self, interface, path=None, url=None):
self.interface = interface
self.path = path
self.url = url
if path:
self.native = NSImage.alloc().initWithContentsOfFile(str(path))
elif url:
self.native = NSImage.alloc().initByReferencingURL(
NSURL.URLWithString_(url))
def apply_round_clipping(image_view_impl: ImageView) -> None:
"""Clips an image in a given toga_cocoa.ImageView to a circular mask."""
image = image_view_impl.native.image # get native NSImage
composed_image = NSImage.alloc().initWithSize(image.size)
composed_image.lockFocus()
ctx = NSGraphicsContext.currentContext
ctx.saveGraphicsState()
ctx.imageInterpolation = NSImageInterpolationHigh
image_frame = NSRect(NSPoint(0, 0), image.size)
clip_path = NSBezierPath.bezierPathWithRoundedRect(
image_frame,
xRadius=image.size.width / 2,
yRadius=image.size.height / 2)
clip_path.addClip()
zero_rect = NSRect(NSPoint(0, 0), NSMakeSize(0, 0))
image.drawInRect(image_frame,
fromRect=zero_rect,
operation=NSCompositeSourceOver,
fraction=1)
composed_image.unlockFocus()
ctx.restoreGraphicsState()
image_view_impl.native.image = composed_image
def set_image(self, image):
if image:
self.native.image = self.interface._image._impl.native
else:
width = 0
height = 0
if self.interface.style.width:
width = self.interface.style.width
if self.interface.style.height:
height = self.interface.style.height
self.native.image = NSImage.alloc().initWithSize(
NSSize(width, height))
def resize_image_to(image: NSImage, height: int) -> NSImage:
new_size = NSMakeSize(height, height)
new_image = NSImage.alloc().initWithSize(new_size)
new_image.lockFocus()
image.size = new_size
ctx = NSGraphicsContext.currentContext
ctx.saveGraphicsState()
ctx.imageInterpolation = NSImageInterpolationHigh
image.drawAtPoint(
NSZeroPoint,
fromRect=CGRectMake(0, 0, new_size.width, new_size.height),
operation=NSCompositingOperationCopy,
fraction=1.0,
)
new_image.unlockFocus()
ctx.restoreGraphicsState()
return new_image
def native(self):
if self._native:
return self._native
if self.path:
self._native = NSImage.alloc().initWithContentsOfFile(self.path)
return self._native
elif self.for_path:
# always return a new pointer since an old one may be invalidated
# icons are cached by AppKit anyways
path = str(self.for_path)
if osp.exists(path):
return NSWorkspace.sharedWorkspace.iconForFile(path)
else:
_, extension = osp.splitext(path)
return NSWorkspace.sharedWorkspace.iconForFileType(extension)
elif self.template:
cocoa_template = Icon._to_cocoa_template[self.template]
self._native = NSImage.imageNamed(cocoa_template)
return self._native
def __init__(self, interface):
self.interface = interface
self.interface._impl = self
file_path, file_extension = os.path.splitext(self.interface.filename)
valid_icon_extensions = ('.png', '.bmp', '.ico')
if file_extension == '.icns':
self.native = NSImage.alloc().initWithContentsOfFile(self.interface.filename)
elif os.path.isfile(file_path + '.icns'):
self.native = NSImage.alloc().initWithContentsOfFile(file_path + '.icns')
elif file_extension in valid_icon_extensions:
self.native = NSImage.alloc().initWithContentsOfFile(self.interface.filename)
elif os.path.isfile(file_path + '.png'):
self.native = NSImage.alloc().initWithContentsOfFile(file_path + '.png')
elif os.path.isfile(file_path + '.bmp'):
self.native = NSImage.alloc().initWithContentsOfFile(file_path + '.bmp')
else:
print("[Cocoa] No valid icon format available for {}; "
"fall back on Tiberius instead".format(
self.interface.filename))
tiberius_file = toga_Icon.TIBERIUS_ICON.filename + '.icns'
self.interface.icon = toga_Icon.TIBERIUS_ICON
self.native = NSImage.alloc().initWithContentsOfFile(tiberius_file)
def load_image(self, path):
if path.startswith(('http://', 'https://')):
self.native = NSImage.alloc().initByReferencingURL(NSURL.URLWithString_(path))
else:
self.native = NSImage.alloc().initWithContentsOfFile(self._get_full_path(path))
def __init__(self, interface, path):
self.interface = interface
self.interface._impl = self
self.path = path
self.native = NSImage.alloc().initWithContentsOfFile(str(path))
def __init__(self, interface):
self.interface = interface
interface.__impl = self
self.native = NSImage.alloc().initWithContentsOfFile(
interface.filename)