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#
# Copyright (c) 2002, 2003, 2004, 2005, 2006 Art Haas
#
# This file is part of PythonCAD.
#
# PythonCAD is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# PythonCAD is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with PythonCAD; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
#
# functions for doing mirroring operations
#
import pygtk
pygtk.require('2.0')
import gtk
from PythonCAD.Generic.hcline import HCLine
from PythonCAD.Generic.acline import ACLine
from PythonCAD.Generic.vcline import VCLine
from PythonCAD.Generic.cline import CLine
from PythonCAD.Generic import mirror
def mirror_objects(gtkimage, tool, objs):
_mline = tool.getMirrorLine()
tool.reset()
_prompt = _('Click on the mirroring construction line.')
if len(objs):
_image = gtkimage.getImage()
_image.startAction()
try:
mirror.mirror_objects(_mline, objs)
finally:
_image.endAction()
mirror_mode_init(tool)
else:
gtkimage.refresh()
_prompt = ('Click on an object to mirror')
tool.setMirrorLine(_mline)
tool.setHandler("button_press", first_button_press_cb)
gtkimage.setPrompt(_prompt)
def select_motion_notify(gtkimage, widget, event, tool):
_tx, _ty = tool.getLocation()
_px, _py = gtkimage.coordToPixTransform(_tx, _ty)
_gc = gtkimage.getGC()
_x = int(event.x)
_y = int(event.y)
_cp = tool.getCurrentPoint()
if _cp is not None:
_xc, _yc = _cp
_xmin = min(_xc, _px)
_ymin = min(_yc, _py)
_rw = abs(_xc - _px)
_rh = abs(_yc - _py)
widget.window.draw_rectangle(_gc, False, _xmin, _ymin, _rw, _rh)
tool.setCurrentPoint(_x, _y)
_xmin = min(_x, _px)
_ymin = min(_y, _py)
_rw = abs(_x - _px)
_rh = abs(_y - _py)
widget.window.draw_rectangle(_gc, False, _xmin, _ymin, _rw, _rh)
return True
def second_button_press_cb(gtkimage, widget, event, tool):
_tol = gtkimage.getTolerance()
_image = gtkimage.getImage()
_x, _y = _image.getCurrentPoint()
_active_layer = _image.getActiveLayer()
_pts = _active_layer.find('point', _x, _y)
if len(_pts) > 0:
_x, _y = _pts[0].getCoords()
_x1, _y1 = tool.getLocation()
_xmin = min(_x1, _x)
_ymin = min(_y1, _y)
_xmax = max(_x1, _x)
_ymax = max(_y1, _y)
_objs = _active_layer.objsInRegion(_xmin, _ymin, _xmax, _ymax, True)
mirror_objects(gtkimage, tool, _objs)
return True
def first_button_press_cb(gtkimage, widget, event, tool):
_tol = gtkimage.getTolerance()
_image = gtkimage.getImage()
_x, _y = _image.getCurrentPoint()
_objdict = _image.mapPoint(_x, _y, _tol)
if len(_objdict):
_active_layer = _image.getActiveLayer()
if _active_layer in _objdict:
_objs = []
for _obj, _pt in _objdict[_active_layer]:
_objs.append(_obj)
mirror_objects(gtkimage, tool, _objs)
else:
_pt, _pc = _image.getClosestPoint(_x, _y, tolerance=_tol)
if _pt is not None:
_x, _y = _pt.getCoords()
else:
_x, _y = _pc
tool.setLocation(_x, _y)
tool.setHandler("motion_notify", select_motion_notify)
tool.setHandler("button_press", second_button_press_cb)
gtkimage.setPrompt(_('Enclose objects to mirror with the box'))
gtkimage.getGC().set_function(gtk.gdk.INVERT)
return True
def get_mirror_line_cb(gtkimage, widget, event, tool):
_tol = gtkimage.getTolerance()
_image = gtkimage.getImage()
_x, _y = _image.getCurrentPoint()
_objdict = _image.mapPoint(_x, _y, _tol)
if len(_objdict):
_active_layer = _image.getActiveLayer()
if _active_layer in _objdict:
for _obj, _pt in _objdict[_active_layer]:
if isinstance(_obj, (HCLine, VCLine, ACLine, CLine)):
tool.setMirrorLine(_obj)
if _image.hasSelection():
mirror_objects(gtkimage, tool,
_image.getSelectedObjects())
else:
tool.setHandler("button_press", first_button_press_cb)
gtkimage.setPrompt(_('Click on an object to mirror'))
break
return True
def mirror_mode_init(tool):
tool.setHandler("button_press", get_mirror_line_cb)
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