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*/ bool Object::PointerMoved(Vector)
84 /*virtual*/ void Object::PointerReleased(void)
89 /*virtual*/ bool Object::NeedsUpdate(void)
95 /*virtual*/ bool Object::HitTest(Point)
101 // This is intended to be overridden by the Container class, for object morphing
102 /*virtual*/ void Object::Transmute(Object *, Object *)
107 /*virtual*/ Object * Object::GetParent(void)
113 /*virtual*/ void Object::Add(Object *)
118 // This returns a pointer to the point passed in, if it coincides. Otherwise returns NULL.
119 /*virtual*/ Vector * Object::GetPointAt(Vector)
125 // This is meant for writing object data to a file.
126 /*virtual*/ void Object::Enumerate(FILE *)
131 /*virtual*/ Object * Object::Copy(void)
133 return new Object(position, parent);
137 // This returns a point on the object at 'parameter', which is between 0 and 1.
138 // Default is to return the object's position.
139 /*virtual*/ Vector Object::GetPointAtParameter(double)
145 // Since these functions are pretty much non-object specific, we can implement
147 /*virtual*/ void Object::Connect(Object * obj, double parameter)
149 // Check to see if this connection is already in our list...
150 Connection c(obj, parameter);
151 std::vector<Connection>::iterator i;
153 for(i=connected.begin(); i!=connected.end(); i++)
155 // Bail out if this connection is already present...
160 // Connection is a new one, add it in...
161 connected.push_back(c);
165 /*virtual*/ void Object::Disconnect(Object * obj, double parameter)
167 std::vector<Connection>::iterator i;
169 for(i=connected.begin(); i!=connected.end(); i++)
171 if (((*i).object == obj) && ((*i).t == parameter))
180 /*virtual*/ void Object::DisconnectAll(Object * obj)
182 std::vector<Connection>::iterator i;
184 for(i=connected.begin(); i!=connected.end(); )
186 if ((*i).object == obj)
194 /*virtual*/ QRectF Object::Extents(void)
196 // Generic object returns an empty rect...
202 /*virtual*/ ObjectType Object::Type(void)
209 /*virtual*/ void Object::Translate(Vector amount)
215 /*virtual*/ void Object::Rotate(Point, double)
220 /*virtual*/ void Object::Scale(Point, double)
225 /*virtual*/ void Object::Mirror(Point, Point)
230 /*virtual*/ void Object::Save(void)
232 oldPosition = position;
236 /*virtual*/ void Object::Restore(void)
238 position = oldPosition;
242 ObjectState Object::GetState(void)
248 void Object::Reparent(Object * newParent)
254 /*Dimension * Object::GetAttachedDimension(void)
256 return attachedDimension;
262 void Object::SetFixedAngle(bool state/*= true*/)
268 void Object::SetFixedLength(bool state/*= true*/)
274 void Object::SetFont(QFont * f)
280 void Object::SetViewportHeight(int height)
282 viewportHeight = height;
286 void Object::SetDeleteActive(bool state/*= true*/)
288 deleteActive = state;
292 void Object::SetDimensionActive(bool state/*= true*/)
294 dimensionActive = state;
298 void Object::SetSnapMode(bool state/*= true*/)
305 // This looks strange, but it's really quite simple: We want a point that's
306 // more than half-way to the next grid point to snap there while conversely we
307 // want a point that's less than half-way to to the next grid point then snap
308 // to the one before it. So we add half of the grid spacing to the point, then
309 // divide by it so that we can remove the fractional part, then multiply it
310 // back to get back to the correct answer.
312 Vector Object::SnapPointToGrid(Vector point)
314 point += gridSpacing / 2.0; // *This* adds to Z!!!
315 point /= gridSpacing;
316 point.x = floor(point.x);//need to fix this for negative numbers...
317 point.y = floor(point.y);
318 point.z = 0; // Make *sure* Z doesn't go anywhere!!!
319 point *= gridSpacing;