class ToolbarButton(Button):
image = Str()
_image = Instance(Image)
color = 'black'
width = Property(Int, depends_on='label, image')
height = Property(Int, depends_on='label, image')
# bounds are used for hit testing
bounds = Property(List, depends_on='label, image')
def __init__(self, *args, **kw):
super(ToolbarButton, self).__init__(*args, **kw)
image_resource = ImageResource(self.image)
self._image = Image(image_resource.absolute_path)
@cached_property
def _get_width(self):
gc = PlotGraphicsContext((100, 100), dpi=72)
gc.set_font(self.label_font)
(w, h, descent, leading) = gc.get_full_text_extent(self.label)
return max(self._image.width(), w)
@cached_property
def _get_height(self):
gc = PlotGraphicsContext((100, 100), dpi=72)
gc.set_font(self.label_font)
(w, h, descent, leading) = gc.get_full_text_extent(self.label)
return self._image.height() + h
@cached_property
def _get_bounds(self):
return [self.width, self.height]
def _draw_actual_button(self, gc):
x_offset = self.x + (self.width - self._image.width()) / 2
gc.draw_image(self._image,
(x_offset, self.y + 2, self._image.width(),
self._image.height()))
if self.label is not None and len(self.label) > 0:
gc.set_font(self.label_font)
(w, h, descent, leading) = gc.get_full_text_extent(self.label)
if w < self.width:
x_offset = self.x + (self.width - w) / 2
else:
x_offset = self.x
gc.set_text_position(x_offset, self.y - 8)
gc.show_text(self.label)
class ToolbarButton(Button):
image = Str()
_image = Instance(Image)
color = 'black'
width = Property(Int, depends_on='label, image')
height = Property(Int, depends_on='label, image')
# bounds are used for hit testing
bounds = Property(List, depends_on='label, image')
def __init__(self, *args, **kw):
super(ToolbarButton, self).__init__(*args, **kw)
image_resource = ImageResource(self.image)
self._image = Image(image_resource.absolute_path)
@cached_property
def _get_width(self):
gc = PlotGraphicsContext((100, 100), dpi=72)
gc.set_font(self.label_font)
(w, h, descent, leading) = gc.get_full_text_extent(self.label)
return max(self._image.width(), w)
@cached_property
def _get_height(self):
gc = PlotGraphicsContext((100, 100), dpi=72)
gc.set_font(self.label_font)
(w, h, descent, leading) = gc.get_full_text_extent(self.label)
return self._image.height() + h
@cached_property
def _get_bounds(self):
return [self.width, self.height]
def _draw_actual_button(self, gc):
x_offset = self.x + (self.width - self._image.width()) / 2
gc.draw_image(self._image,
(x_offset, self.y + 2, self._image.width(),
self._image.height()))
if self.label is not None and len(self.label) > 0:
gc.set_font(self.label_font)
(w, h, descent, leading) = gc.get_full_text_extent(self.label)
if w < self.width:
x_offset = self.x + (self.width - w) / 2
else:
x_offset = self.x
gc.set_text_position(x_offset, self.y - 8)
gc.show_text(self.label)
class GeoMarker(GeoPrimitive):
#### 'GeoPrimitive' interface ###################################################
bounds = (1, 1)
# The anchor point of the marker (in relative coordinates)
anchor = coordinate_trait((0.5, 0.))
filename = Str
_marker = Instance(Image)
def _filename_changed(self, new):
self._marker = Image(new)
###########################################################################
# Protected 'Component' interface.
###########################################################################
def _render_primitive(self, gc, view_bounds=None, mode='default'):
""" Draw the component. """
x, y = self.position
anchor_x, anchor_y = self.anchor
w, h = self._marker.width(), self._marker.height()
gc.draw_image(self._marker, (x-anchor_x*w, y-anchor_y*h, w, h))
return
class GeoMarker(GeoPrimitive):
#### 'GeoPrimitive' interface ###################################################
bounds = (1, 1)
# The anchor point of the marker (in relative coordinates)
anchor = coordinate_trait((0.5, 0.))
filename = Str
_marker = Instance(Image)
def _filename_changed(self, new):
self._marker = Image(new)
###########################################################################
# Protected 'Component' interface.
###########################################################################
def _render_primitive(self, gc, view_bounds=None, mode='default'):
""" Draw the component. """
x, y = self.position
anchor_x, anchor_y = self.anchor
w, h = self._marker.width(), self._marker.height()
gc.draw_image(self._marker, (x - anchor_x * w, y - anchor_y * h, w, h))
return
def _draw_mainlayer(self, gc, view_bounds=None, mode="default"):
if exists(self.image_file):
gc.save_state()
img = KivaImage(self.image_file)
w, h = img.width(), img.height()
self.bounds = [w, h]
gc.draw_image(img, (self.x, self.y, w, h))
gc.restore_state()
def _draw_mainlayer(self, gc, view_bounds=None, mode="default"):
if exists(self.image_file):
gc.save_state()
# self.image_file.seek(0)
img = KivaImage(self.image_file)
x = gc.width() * 0.7
y = gc.height() * 0.15
w, h = img.width(), img.height()
# Use Image's ability to draw itself onto a gc to paint the window.
gc.draw_image(img, (x, y, w, h))
self.position = [x, y]
self.bounds = [w, h]
gc.restore_state()
def test_initialization(self):
image = Image(self.filename)
self.assertEqual(image.width(), 100)
self.assertEqual(image.height(), 120)
self.assertEqual(image.format(), 'rgb24')
def test_initialization(self):
image = Image(self.filename)
self.assertEqual(image.width(), 100)
self.assertEqual(image.height(), 120)
self.assertEqual(image.format(), 'rgb24')
