2 // object.cpp: Base class for all CAD objects
4 // Part of the Architektonas Project
5 // (C) 2011 Underground Software
6 // See the README and GPLv3 files for licensing and warranty information
8 // JLH = James Hammons <jlhamm@acm.org>
11 // --- ---------- ------------------------------------------------------------
12 // JLH 03/22/2011 Created this file
13 // JLH 04/01/2011 Added constructor to allow derived objects to have empty
14 // constructor bodies, added state querying
15 // JLH 04/02/2001 Added static methods for global states (fixed angle, etc)
22 // Initialize static variables
23 bool Object::fixedAngle = false;
24 bool Object::fixedLength = false;
25 QFont * Object::font = 0;
26 int Object::viewportHeight = 0;
27 bool Object::deleteActive = false;
28 bool Object::dimensionActive = false;
29 bool Object::snapToGrid = true;
30 //snapToPoints all well here?
31 bool Object::ignoreClicks = false;
32 bool Object::dontMove = false;
33 bool Object::selectionInProgress = false;
34 QRectF Object::selection;
35 double Object::gridSpacing;
36 int Object::currentLayer = 0;
39 Object::Object(): position(Vector(0, 0)), parent(0), type(OTObject),
40 state(OSInactive), layer(0), oldState(OSInactive), needUpdate(false)
41 //, attachedDimension(0)
46 Object::Object(Vector v, Object * passedInParent/*= 0*/): position(v),
47 parent(passedInParent), state(OSInactive), layer(0), oldState(OSInactive),
48 needUpdate(false)//, attachedDimension(0)
55 printf("Object: Destroyed!\n");
56 for(uint i=0; i<connected.size(); i++)
57 connected[i].object->DisconnectAll(this);
61 /*virtual*/ void Object::Draw(Painter *)
66 /*virtual*/ Vector Object::Center(void)
72 /*virtual*/ bool Object::Collided(Vector)
78 /*virtual*/ void Object::PointerMoved(Vector)
83 /*virtual*/ void Object::PointerReleased(void)
88 /*virtual*/ bool Object::NeedsUpdate(void)
94 /*virtual*/ bool Object::HitTest(Point)
100 // This is intended to be overridden by the Container class, for object morphing
101 /*virtual*/ void Object::Transmute(Object *, Object *)
106 /*virtual*/ Object * Object::GetParent(void)
112 /*virtual*/ void Object::Add(Object *)
117 // This returns a pointer to the point passed in, if it coincides. Otherwise returns NULL.
118 /*virtual*/ Vector * Object::GetPointAt(Vector)
124 // This is meant for writing object data to a file.
125 /*virtual*/ void Object::Enumerate(FILE *)
130 /*virtual*/ Object * Object::Copy(void)
132 return new Object(position, parent);
136 // This returns a point on the object at 'parameter', which is between 0 and 1.
137 // Default is to return the object's position.
138 /*virtual*/ Vector Object::GetPointAtParameter(double)
144 // Since these functions are pretty much non-object specific, we can implement
146 /*virtual*/ void Object::Connect(Object * obj, double parameter)
148 connected.push_back(Connection(obj, parameter));
152 /*virtual*/ void Object::Disconnect(Object * obj, double parameter)
155 for(uint i=0; i<connected.size(); i++)
157 if (connected[i].object == obj && connected[i].t == parameter)
159 connected.erase(connected.begin() + i);
164 std::vector<Connection>::iterator i;
166 for(i=connected.begin(); i!=connected.end(); i++)
168 if (((*i).object == obj) && ((*i).t == parameter))
178 /*virtual*/ void Object::DisconnectAll(Object * obj)
181 // According the std::vector docs, only items at position i and beyond are
182 // invalidated, everything before i is still valid. So we use that here.
183 for(uint i=0; i<connected.size();)
185 // If we found our object, erase it from the vector but don't advance
186 // the iterator. Otherwise, advance the iterator. :-)
187 if (connected[i].object == obj)
188 connected.erase(connected.begin() + i);
193 std::vector<Connection>::iterator i;
195 for(i=connected.begin(); i!=connected.end(); )
197 if ((*i).object == obj)
206 /*virtual*/ QRectF Object::Extents(void)
208 // Generic object returns an empty rect...
214 /*virtual*/ ObjectType Object::Type(void)
221 /*virtual*/ void Object::Translate(Vector amount)
227 /*virtual*/ void Object::Rotate(Vector, double)
232 /*virtual*/ void Object::Scale(Vector, double)
237 ObjectState Object::GetState(void)
243 void Object::Reparent(Object * newParent)
249 /*Dimension * Object::GetAttachedDimension(void)
251 return attachedDimension;
257 void Object::SetFixedAngle(bool state/*= true*/)
263 void Object::SetFixedLength(bool state/*= true*/)
269 void Object::SetFont(QFont * f)
275 void Object::SetViewportHeight(int height)
277 viewportHeight = height;
281 void Object::SetDeleteActive(bool state/*= true*/)
283 deleteActive = state;
287 void Object::SetDimensionActive(bool state/*= true*/)
289 dimensionActive = state;
293 void Object::SetSnapMode(bool state/*= true*/)
300 // This looks strange, but it's really quite simple: We want a point that's
301 // more than half-way to the next grid point to snap there while conversely we
302 // want a point that's less than half-way to to the next grid point then snap
303 // to the one before it. So we add half of the grid spacing to the point, then
304 // divide by it so that we can remove the fractional part, then multiply it
305 // back to get back to the correct answer.
307 Vector Object::SnapPointToGrid(Vector point)
309 point += gridSpacing / 2.0; // *This* adds to Z!!!
310 point /= gridSpacing;
311 point.x = floor(point.x);//need to fix this for negative numbers...
312 point.y = floor(point.y);
313 point.z = 0; // Make *sure* Z doesn't go anywhere!!!
314 point *= gridSpacing;