A Discrete-Event Network Simulator
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svgitem.py
Go to the documentation of this file.
1
# import cairo
2
import
os.path
3
4
import
rsvg
5
from
gi.repository
import
GObject, GooCanvas
6
7
8
## SvgItem class
9
class
SvgItem
(GooCanvas.ItemSimple):
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## @var x
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# x
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## @var y
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# y
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## @var sx
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# x step
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## @var sy
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# y step
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## @var handle
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# handle
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## @var width
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# width
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## @var height
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# height
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## @var custom_width
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# custom width
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## @var custom_height
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# custom height
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## @var bounds_x1
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# minimum x
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## @var bounds_y1
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# minimum y
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## @var bounds_x2
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# maximum x
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## @var bounds_y2
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# maximum y
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## setup our custom properties
38
__gproperties__ = {
39
"x"
: (
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float,
# property type
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"X"
,
# property nick name
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"The x coordinate of a SVG image"
,
# property description
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-10e6,
# property minimum value
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10e6,
# property maximum value
45
0,
# property default value
46
GObject.PARAM_READWRITE,
47
),
# property flags
48
"y"
: (
49
float,
50
"Y"
,
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"The y coordinate of a SVG image"
,
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-10e6,
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10e6,
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0,
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GObject.PARAM_READWRITE,
56
),
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"width"
: (
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float,
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"Width"
,
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"The width of the SVG Image"
,
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0,
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10e6,
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0,
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GObject.PARAM_READWRITE,
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),
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"height"
: (
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float,
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"Height"
,
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"The width of the SVG Image"
,
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0,
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10e6,
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0,
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GObject.PARAM_READWRITE,
74
),
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}
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def
__init__
(self, x, y, rsvg_handle, **kwargs):
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"""!
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Initializer
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@param self this object
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@param x The x coordinate of a SVG image
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@param y The y coordinate of a SVG image
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@param rsvg_handle SVG handle
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@param kwargs key-value arguments
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"""
86
super(SvgItem, self).
__init__
(**kwargs)
87
assert
isinstance(rsvg_handle, rsvg.Handle)
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self.
x
= x
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self.
y
= y
90
self.
sx
= 1.0
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self.
sy
= 1.0
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self.
handle
= rsvg_handle
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self.
width
= self.
handle
.props.width
94
self.
height
= self.
handle
.props.height
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self.
custom_width
=
None
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self.
custom_height
=
None
97
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def
do_set_property
(self, pspec, value):
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"""!
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Set Property
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@param self this object
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@param pspec property name
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@param value property value
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@return exception if unknown property
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"""
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if
pspec.name ==
"x"
:
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self.
x
= value
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# make sure we update the display
110
self.changed(
True
)
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elif
pspec.name ==
"y"
:
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self.
y
= value
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# make sure we update the display
116
self.changed(
True
)
117
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elif
pspec.name ==
"width"
:
119
self.
custom_width
= value
120
self.
_size_changed
()
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# make sure we update the display
123
self.changed(
True
)
124
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elif
pspec.name ==
"height"
:
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self.
custom_height
= value
127
self.
_size_changed
()
128
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# make sure we update the display
130
self.changed(
True
)
131
132
else
:
133
raise
AttributeError(
"unknown property %s"
% pspec.name)
134
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def
_size_changed
(self):
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"""!
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Size Changed function
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@param self this object
139
@return exception if unknown property
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"""
141
if
self.
custom_width
is
None
and
self.
custom_height
is
None
:
142
self.
width
= self.
handle
.props.width
143
self.
height
= self.
handle
.props.height
144
self.
sx
= 1.0
145
self.
sy
= 1.0
146
elif
self.
custom_width
is
not
None
and
self.
custom_height
is
None
:
147
self.
width
= self.
custom_width
148
self.
sx
= self.
custom_width
/ self.
handle
.props.width
149
self.
sy
= self.
sx
150
self.
height
= self.
handle
.props.height * self.
sy
151
elif
self.
custom_width
is
None
and
self.
custom_height
is
not
None
:
152
self.
height
= self.
custom_height
153
self.
sy
= self.
custom_height
/ self.
handle
.props.height
154
self.
sx
= self.
sy
155
self.
width
= self.
handle
.props.width * self.
sx
156
else
:
157
self.
width
= self.
custom_width
158
self.
height
= self.
custom_height
159
self.
sx
= self.
custom_width
/ self.
handle
.props.width
160
self.
sy
= self.
custom_height
/ self.
handle
.props.height
161
162
def
do_get_property
(self, pspec):
163
"""!
164
Get Property
165
@param self this object
166
@param pspec property name
167
@return property value or exception if unknown property
168
"""
169
if
pspec.name ==
"x"
:
170
return
self.
x
171
172
elif
pspec.name ==
"y"
:
173
return
self.
y
174
175
elif
pspec.name ==
"width"
:
176
self.
width
= self.
handle
.props.width
177
self.
height
= self.
handle
.props.height
178
179
return
self.
width
180
181
elif
pspec.name ==
"height"
:
182
return
self.
height
183
184
else
:
185
raise
AttributeError(
"unknown property %s"
% pspec.name)
186
187
def
do_simple_paint
(self, cr, bounds):
188
"""!
189
Simple Paint function
190
@param self this object
191
@param cr rendered
192
@param bounds bounds
193
@return none
194
"""
195
cr.translate(self.
x
, self.
y
)
196
cr.scale(self.
sx
, self.
sy
)
197
self.
handle
.render_cairo(cr)
198
199
def
do_simple_update
(self, cr):
200
"""!
201
Simple Update function
202
@param self this object
203
@param cr rendered
204
@return none
205
"""
206
self.
bounds_x1
= float(self.
x
)
207
self.
bounds_y1
= float(self.
y
)
208
self.
bounds_x2
= float(self.
x
+ self.
width
)
209
self.
bounds_y2
= float(self.
y
+ self.
height
)
210
211
def
do_simple_is_item_at
(self, x, y, cr, is_pointer_event):
212
"""!
213
Simple Is Item At function
214
@param self this object
215
@param x the X position
216
@param y the Y position
217
@param cr rendered
218
@param is_pointer_event is the event a pointer event
219
@return true if at or false if not
220
"""
221
if
((x < self.
x
)
or
(x > self.
x
+ self.
width
))
or
(
222
(y < self.
y
)
or
(y > self.
y
+ self.
height
)
223
):
224
return
False
225
else
:
226
return
True
227
228
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_rsvg_cache = dict()
230
231
232
def
rsvg_handle_factory
(base_file_name):
233
try
:
234
return
_rsvg_cache[base_file_name]
235
except
KeyError:
236
full_path = os.path.join(os.path.dirname(__file__),
"resource"
, base_file_name)
237
rsvg_handle = rsvg.Handle(full_path)
238
_rsvg_cache[base_file_name] = rsvg_handle
239
return
rsvg_handle
visualizer.svgitem.SvgItem
SvgItem class.
Definition
svgitem.py:9
visualizer.svgitem.SvgItem.do_set_property
do_set_property(self, pspec, value)
Set Property.
Definition
svgitem.py:98
visualizer.svgitem.SvgItem.__init__
__init__(self, x, y, rsvg_handle, **kwargs)
Initializer.
Definition
svgitem.py:77
visualizer.svgitem.SvgItem.handle
handle
handle
Definition
svgitem.py:92
visualizer.svgitem.SvgItem._size_changed
_size_changed(self)
Size Changed function.
Definition
svgitem.py:135
visualizer.svgitem.SvgItem.x
x
x
Definition
svgitem.py:88
visualizer.svgitem.SvgItem.custom_height
custom_height
custom height
Definition
svgitem.py:96
visualizer.svgitem.SvgItem.bounds_y2
bounds_y2
maximum y
Definition
svgitem.py:209
visualizer.svgitem.SvgItem.do_simple_is_item_at
do_simple_is_item_at(self, x, y, cr, is_pointer_event)
Simple Is Item At function.
Definition
svgitem.py:211
visualizer.svgitem.SvgItem.do_simple_update
do_simple_update(self, cr)
Simple Update function.
Definition
svgitem.py:199
visualizer.svgitem.SvgItem.bounds_x2
bounds_x2
maximum x
Definition
svgitem.py:208
visualizer.svgitem.SvgItem.width
width
width
Definition
svgitem.py:93
visualizer.svgitem.SvgItem.height
height
height
Definition
svgitem.py:94
visualizer.svgitem.SvgItem.sy
sy
y step
Definition
svgitem.py:91
visualizer.svgitem.SvgItem.do_simple_paint
do_simple_paint(self, cr, bounds)
Simple Paint function.
Definition
svgitem.py:187
visualizer.svgitem.SvgItem.do_get_property
do_get_property(self, pspec)
Get Property.
Definition
svgitem.py:162
visualizer.svgitem.SvgItem.bounds_y1
bounds_y1
minimum y
Definition
svgitem.py:207
visualizer.svgitem.SvgItem.y
y
y
Definition
svgitem.py:89
visualizer.svgitem.SvgItem.bounds_x1
bounds_x1
minimum x
Definition
svgitem.py:206
visualizer.svgitem.SvgItem.sx
sx
x step
Definition
svgitem.py:90
visualizer.svgitem.SvgItem.custom_width
custom_width
custom width
Definition
svgitem.py:95
visualizer.svgitem.rsvg_handle_factory
rsvg_handle_factory(base_file_name)
Definition
svgitem.py:232
src
visualizer
visualizer
svgitem.py
Generated on Fri Dec 13 2024 18:20:50 for ns-3 by
1.11.0