def show_landmarks(self, widget):
if not self.display_landmarks:
return
offset = widget.focus_region_width
landmarks = self.geo_data.landmarks
if not landmarks:
return
with widget.canvas:
for x, y, size, name, label in landmarks:
x, y = dp(x), dp(y)
size = dp(size)
x += offset
if name:
Color(1, 1, 1, .6)
Rectangle(pos=(x - size / 2., y - size / 2.),
size=(size, size),
source=resource_find('{}.png'.format(name)))
if label:
label_wid = Label(text=label,
pos=(x - size / 2., y + size / 2.),
font_size=dp(15))
widget.add_widget(label_wid)
def set_size(*largs, obj=label_wid, center=x):
obj.size = obj.texture_size
obj.center_x = center
label_wid.fbind('texture_size', set_size)
class WidgetShape(ShowMoreBehavior, BoxLayout):
'''The widget displayed for and associated with a
:class:`ceed.shape.CeedShape` instance.
'''
painter = ObjectProperty(None, rebind=True)
'''The :class:`CeedPainter` this shape belongs to.
'''
shape = ObjectProperty(None, rebind=True)
'''The :class:`ceed.shape.CeedShape` instance associated with the widget.
'''
label = None
'''The label widget that displays the name of the shape in the center
of the shape in the drawing area.
'''
show_label = BooleanProperty(False)
'''Whether :attr:`label` is currently displayed.
'''
centroid_x = NumericProperty(0)
'''The x center of the shape (e.g. the x-center of the polygon).
'''
centroid_y = NumericProperty(0)
'''The y center of the shape (e.g. the y-center of the polygon).
'''
area = NumericProperty(0)
'''The area in the shape (e.g. the area of the polygon).
'''
selected = BooleanProperty(False)
'''Whether the shape is :attr:`cplcom.painter.PaintShape.selected`.
'''
_shape_update_trigger = None
def __init__(self, **kwargs):
super(WidgetShape, self).__init__(**kwargs)
self.show_label = self.painter.show_label
self.label = Label()
trigger = Clock.create_trigger(self._shape_update, 0)
self._shape_update_trigger = lambda *largs: trigger() and False
@property
def name(self):
'''The :attr:`cplcom.painter.PaintShape.name` of the shape.
'''
return self.shape.name
def show_widget(self, index=None):
'''Displays this widget in the list of shape widgets.
'''
if index is None:
knspace.shapes.add_widget(self)
else:
knspace.shapes.add_widget(
self, index=len(knspace.shapes.children) - index)
self.fbind('show_label', self._show_label)
self.shape.fbind('name', self._label_text)
f = self._shape_update_trigger
self.shape.fbind('on_update', f)
self.label.fbind('size', f)
f()
self._label_text()
self._show_label()
def hide_widget(self):
'''Hides this widget from the list of shape widgets.
'''
self.shape.funbind('on_update', self._shape_update_trigger)
knspace.shapes.remove_widget(self)
label = self.label
label.funbind('size', self._shape_update_trigger)
self.funbind('show_label', self._show_label)
self.shape.funbind('name', self._label_text)
self._show_label(force_hide=True)
def _show_label(self, *largs, force_hide=False):
'''Displays/hides the label in the shapes center containing the name of
shape.
'''
if self.show_label and not force_hide:
if self.label.parent is not None: # already showing
return
self.painter.add_widget(self.label)
self._shape_update_trigger()
self._label_text()
elif self.label.parent is not None:
self.painter.remove_widget(self.label)
def _label_text(self, *largs):
'''Updates the :attr:`label` with the current name of the shape.
'''
if self.show_label:
self.label.text = self.shape.name
def _show_more(self, *largs):
'''Shows the settings
'''
super(WidgetShape, self)._show_more(*largs)
if self.show_more:
self._shape_update_trigger()
def _shape_update(self, *largs):
'''Update the centroids and area when the shape is changed.
'''
if not self.shape.finished:
return
self.centroid_x, self.centroid_y = tuple(
map(round, self.shape.centroid))
self.area = round(self.shape.area)
if self.show_label:
self.label.center = self.shape.centroid
def _update_centroid(self, x=None, y=None):
'''Sets the centroid from the GUI.
'''
x1, y1 = map(round, self.shape.centroid)
dx = 0 if x is None else x - x1
dy = 0 if y is None else y - y1
if dx or dy:
self.shape.translate(dpos=(dx, dy))
def _update_area(self, area):
'''Sets the area from the GUI.
'''
if not math.isclose(area, self.area):
self.shape.set_area(area)
class WidgetShape(ShowMoreBehavior, BoxLayout):
"""The widget displayed for and associated with a
:class:`~ceed.shape.CeedShape` instance.
"""
painter: CeedPainter = ObjectProperty(None, rebind=True)
'''The :class:`CeedPainter` this shape belongs to.
'''
shape: CeedShape = ObjectProperty(None, rebind=True)
'''The :class:`~ceed.shape.CeedShape` instance associated with the widget.
'''
label = None
'''The label widget that displays the name of the shape in the center
of the shape, in the drawing area, when enabled.
'''
show_label = BooleanProperty(False)
'''Whether :attr:`label` is currently displayed.
'''
centroid_x = NumericProperty(0)
'''The x center of the shape (e.g. the x-center of the polygon).
'''
centroid_y = NumericProperty(0)
'''The y center of the shape (e.g. the y-center of the polygon).
'''
area = NumericProperty(0)
'''The enclosed area of the shape (e.g. the area of the polygon).
'''
selected = BooleanProperty(False)
'''Whether the shape is :attr:`kivy_garden.painter.PaintShape.selected`.
'''
_shape_update_trigger = None
def __init__(self, **kwargs):
super(WidgetShape, self).__init__(**kwargs)
self.show_label = self.painter.show_label
self.label = Label()
trigger = Clock.create_trigger(self._shape_update, 0)
self._shape_update_trigger = lambda *largs: trigger() and False
@property
def name(self):
"""The :attr:`kivy_garden.painter.PaintShape.name` of the shape.
"""
return self.shape.name
def show_widget(self, index=None):
"""Displays this widget in the list of shape widgets at the given
index. The index is in the same order as the shapes, i.e. zero is shape
zero etc.
"""
if index is None:
App.get_running_app().shapes_container.add_widget(self)
else:
App.get_running_app().shapes_container.add_widget(
self, index=len(
App.get_running_app().shapes_container.children) - index)
self.fbind('show_label', self._show_label)
self.shape.fbind('name', self._label_text)
f = self._shape_update_trigger
self.shape.fbind('on_update', f)
self.label.fbind('size', f)
f()
self._label_text()
self._show_label()
def hide_widget(self):
"""Hides this widget from the list of shape widgets.
"""
self.shape.funbind('on_update', self._shape_update_trigger)
App.get_running_app().shapes_container.remove_widget(self)
label = self.label
label.funbind('size', self._shape_update_trigger)
self.funbind('show_label', self._show_label)
self.shape.funbind('name', self._label_text)
self._show_label(force_hide=True)
def _show_label(self, *largs, force_hide=False):
"""Displays/hides the label in the shapes center containing the name of
shape.
"""
if self.show_label and not force_hide:
if self.label.parent is not None: # already showing
return
self.painter.add_widget(self.label)
self._shape_update_trigger()
self._label_text()
elif self.label.parent is not None:
self.painter.remove_widget(self.label)
def _label_text(self, *largs):
"""Updates the :attr:`label` with the current name of the shape.
"""
if self.show_label:
self.label.text = self.shape.name
def _show_more(self, *largs):
super(WidgetShape, self)._show_more(*largs)
if self.show_more:
self._shape_update_trigger()
def _shape_update(self, *largs):
"""Update the centroids and area when the shape is changed.
"""
if not self.shape.finished:
return
self.centroid_x, self.centroid_y = tuple(
map(round, self.shape.centroid))
self.area = round(self.shape.area)
if self.show_label:
self.label.center = self.shape.centroid
def _update_centroid(self, x=None, y=None):
"""Sets the centroid from the GUI.
"""
x1, y1 = map(round, self.shape.centroid)
dx = 0 if x is None else x - x1
dy = 0 if y is None else y - y1
if dx or dy:
self.shape.translate(dpos=(dx, dy))
def _update_area(self, area):
"""Sets the area from the GUI.
"""
if not math.isclose(area, self.area):
self.shape.set_area(area)
