def convert_image ( self, image ):
""" Returns a new version of the specified *image* with all of the
current image knife operations applied.
"""
if self.can_transform:
image = hlsa_derived_image( image, self.transform )
if self.can_scale:
image = image.scale( self.scale / 100.0, self.filter )
if self.can_trim:
image = image.trim( self.alpha / 100.0 )
if self.can_squeeze:
image = image.squeeze( self.squeeze, self.tolerance )
if self.can_crop:
width, height = image.width, image.height
image = image.crop(
min( self.left, width - 1 ),
min( self.top, height - 1 ),
max( width - self.left - self.right, 1 ),
max( height - self.top - self.bottom, 1 )
)
return image
def _selected_image_set ( self, image ):
""" Handles the 'selected_image' facet being changed.
"""
if image is not None:
image = hlsa_derived_image( self.input_image, image.transform )
self.output_image = image
def _theme_transform ( self, theme, hlsa_transform ):
""" Returns a version of the base *theme* with the HLSA transform
specified by *hlsa_transform* applied.
"""
return Theme(
image = hlsa_derived_image( theme.image, hlsa_transform ),
border = theme.border,
content = theme.content,
label = theme.label,
alignment = theme.alignment
)
def init ( self, parent ):
""" Finishes initializing the editor by creating the underlying toolkit
widget.
"""
# Determine the drag/drop type:
self.type = self.factory.type
if self.type == 'auto':
value = self.value
if (isinstance( value, string_type ) or
(isinstance( value, list ) and (len( value ) > 0) and
isinstance( value[0], string_type ))):
self.type = 'files'
# Get the right image to use:
image = self.factory.image
if image is not None:
disabled_image = (self.factory.disabled_image or
hlsa_derived_image( image, DisabledTransform ))
else:
disabled_image = inactive_image
image = object_image
if self.type == 'files':
image = file_image
self._image = image
self._disabled_image = disabled_image
# Create the control and set up the event handlers:
self.adapter = control = toolkit().create_control( parent )
control.min_size = ( image.width, image.height )
control.set_event_handler(
left_down = self._left_down,
left_up = self._left_up,
motion = self._mouse_move,
paint = self._on_paint
)
if self.drop_target:
control.drop_target = self
self.set_tooltip()
def _create_variations ( self ):
""" Creates all of the variations of the input image.
"""
images = []
image = self.scaled_image
if image is not None:
hue, hue_delta = self._range_for( self.hue )
lightness, lightness_delta = self._range_for( self.lightness )
saturation, saturation_delta = self._range_for( self.saturation )
alpha, alpha_delta = self._range_for( self.alpha )
for i in xrange( self.count ):
transform = HLSATransform(
hue = hue,
lightness = lightness,
saturation = saturation,
alpha = alpha
)
images.append( hlsa_derived_image( image, transform ) )
hue += hue_delta
lightness += lightness_delta
saturation += saturation_delta
alpha += alpha_delta
self.images = images
def _hover_off_image_default ( self ):
if self.off_image is self._default_off_image:
return self._default_hover_off_image
return hlsa_derived_image( self.off_image, HoverTransform )
def _off_image_default ( self ):
if self.image is self._default_image:
return self._default_off_image
return hlsa_derived_image( self.image, OffTransform )
def _disabled_image_default ( self ):
return hlsa_derived_image( self.normal_image, DisabledTransform )
def _down_image_default ( self ):
return hlsa_derived_image( self.normal_image, DownTransform )
def _hover_image_default ( self ):
return hlsa_derived_image( self.normal_image, HoverTransform )
def _disabled_image_default ( self ):
return hlsa_derived_image( self.image, DisabledTransform )
#-- EOF ------------------------------------------------------------------------
