1 // container.cpp: Container object
3 // Part of the Architektonas Project
4 // (C) 2011 Underground Software
5 // See the README and GPLv3 files for licensing and warranty information
7 // JLH = James Hammons <jlhamm@acm.org>
10 // --- ---------- ------------------------------------------------------------
11 // JLH 03/30/2011 Created this file
12 // JLH 06/02/2011 Added code to delete objects in this container when they go
16 #include "container.h"
19 #include "dimension.h"
23 Container::Container(Vector p1, Object * p/*= NULL*/): Object(p1, p),
24 isTopLevelContainer(false),
25 dragging(false), draggingHandle1(false), draggingHandle2(false)//, needUpdate(false)
32 Container::Container(const Container & copy): Object(copy.position, copy.parent)
34 // Use overloaded assignment operator
40 Container::~Container()
46 // Assignment operator
47 Container & Container::operator=(const Container & from)
49 // Take care of self-assignment
55 // Small problem with this approach: if the copied object goes out of scope,
56 // all of the objects we copied in here will be deleted. D'oh!
57 for(uint i=0; i<from.objects.size(); i++)
59 Object * object = from.objects[i];
61 // Need to copy the object here...
63 objects.push_back(object);
70 /*virtual*/ void Container::Draw(Painter * painter)
74 for(std::vector<Object *>::iterator i=objects.begin(); i!=objects.end(); i++)
75 // for(int i=0; i<(int)objects.size(); i++)
78 //printf("Container: About to draw (object = $%X)\n", objects[i]);
79 objects[i]->Draw(painter);
80 bounds = bounds.united(objects[i].RectangularExtents());
83 boundary = boundary.united((*i)->Extents());
87 if (state == OSSelected)
89 painter->SetPen(QPen(Qt::magenta, 2.0, Qt::DashLine));
90 painter->SetBrush(QBrush(Qt::NoBrush));
91 painter->DrawRect(boundary);
96 /*virtual*/ Vector Container::Center(void)
102 We need at least *three* handles for this object:
107 We need to think about the intuitive way (if there is any) to grab and
108 manipulate a complex object like this... Need to think, "What should happen when
109 I click here and drag there?"
111 Also: should put the snap logic into the Object base class (as a static method)...
115 // Need to add checking here for clicking on a member of a group (Container),
116 // and checking for if it's a top level container (the DrawingView's document).
118 One approach is to check for the parent of the container: If it's NULL, then it's
119 the DrawingView's document. It might be better, though, to set a boolean like
120 isTopLevelContainer so that we can do things like edit members of a group without
121 having to ungroup them first (like Inkscape).
123 /*virtual*/ bool Container::Collided(Vector point)
125 objectWasDragged = false;
126 // Vector v1 = position - point;
128 bool collision = false;
130 // NOTE that this deletes the object on mouse down instead of mouse up. Have to
131 // check to see how it feels to do it that way...
134 for(std::vector<Object *>::iterator i=objects.begin(); i!=objects.end();)
136 if ((*i)->Collided(point))
138 printf("Container::Collided: Deleting object ($%X)\n", *i);
139 Object * objectToDelete = *i;
141 delete objectToDelete;
149 for(std::vector<Object *>::iterator i=objects.begin(); i!=objects.end(); i++)
151 if ((*i)->Collided(point))
156 // We check to see if the container we're trying to access is the
157 // DrawingView's document. If so, we ignore the state of the container.
158 // Otherwise, we care about the state of the container. :-)
159 if (isTopLevelContainer)
163 state = (collision ? OSSelected : OSInactive);
165 if (state == OSSelected)
173 What we need to do is check for whether or not we're a top level container,
174 and override the passing of stuff into the objects held. So here, if we're *NOT*
175 a top level container, instead of passing PointerMoved to our contained objects,
176 we check to see if our bounds are met (for selection rectangle, e.g.).
178 Also, for things like being able to split point's hot spots we need to be able
179 to check for that crap in the top level container. Which means that objects can
180 still know how to move themselves, but they can also defer to their container
181 as well. Which also means that things like HitTest() need to be in the Object
182 class so that we can leverage that stuff here as well.
185 // The TLC is passing all mouse movement here, so we're doing the same here.
186 // Need to adjust all other objects to handle things correctly.
188 // One optimization that will need to be done eventually is to subdivide the screen
189 // into parts and keep subdividing until an acceptable number of objects lie within
190 // the slice. This way, the GUI will still be responsive and *not* have to test
191 // every object for collision.
192 /*virtual*/ void Container::PointerMoved(Vector point)
194 // objectWasDragged = true;
195 //printf("CONTAINER: PointerMoved()\n");
197 for(std::vector<Object *>::iterator i=objects.begin(); i!=objects.end(); i++)
198 // for(int i=0; i<(int)objects.size(); i++)
200 //// if (objects[i]->GetState() == OSSelected)
201 // objects[i]->PointerMoved(point);
202 (*i)->PointerMoved(point);
205 // Generic container doesn't need this???
206 // needUpdate = false;
210 /*virtual*/ void Container::PointerReleased(void)
213 draggingHandle1 = false;
214 draggingHandle2 = false;
216 // Here we check for just a click: If object was clicked and dragged, then
217 // revert to the old state (OSInactive). Otherwise, keep the new state that
219 /*Maybe it would be better to just check for "object was dragged" state and not have to worry
220 about keeping track of old states...
222 if (objectWasDragged)
224 //Note that the preceeding is unnecessary for a generic container!
226 for(int i=0; i<(int)objects.size(); i++)
227 objects[i]->PointerReleased();
231 /*virtual*/ bool Container::NeedsUpdate(void)
233 // Search through objects for one that needs an update; if one is found,
234 // return immediately.
235 for(std::vector<Object *>::iterator i=objects.begin(); i!=objects.end(); i++)
237 if ((*i)->NeedsUpdate())
245 /*virtual*/ void Container::Add(Object * object)
247 objects.push_back(object);
248 printf("Container: Added object (=$%X). size = %li\n", object, objects.size());
252 /*virtual*/ QRectF Container::Extents(void)
256 for(std::vector<Object *>::iterator i=objects.begin(); i!=objects.end(); i++)
257 bounds = bounds.united((*i)->Extents());
263 void Container::Delete(Object * objectToDelete)
265 std::vector<Object *>::iterator i = objects.begin();
267 while (i != objects.end())
269 if (*i == objectToDelete)
272 delete objectToDelete;
281 void Container::DeleteSelectedItems(void)
283 std::vector<Object *>::iterator i = objects.begin();
285 while (i != objects.end())
287 if ((*i)->state == OSSelected)
298 void Container::Clear(void)
300 std::vector<Object *>::iterator i = objects.begin();
302 while (i != objects.end())
304 printf("Container: Deleting object ($%X)...\n", *i);
311 void Container::SelectAll(void)
313 for(unsigned int i=0; i<objects.size(); i++)
314 objects[i]->state = OSSelected;
318 void Container::DeselectAll(void)
320 for(unsigned int i=0; i<objects.size(); i++)
321 objects[i]->state = OSInactive;
325 int Container::ItemsSelected(void)
329 for(uint i=0; i<objects.size(); i++)
330 if (objects[i]->state == OSSelected)
337 Object * Container::SelectedItem(unsigned int index)
339 unsigned int selectedIndex = 0;
341 for(std::vector<Object *>::iterator i=objects.begin(); i!=objects.end(); i++)
343 if ((*i)->state == OSSelected)
345 if (selectedIndex == index)
356 void Container::MoveContentsTo(Container * newContainer)
359 if (newContainer == NULL)
362 // Shuffle the contents of this container to the new one
363 // for(unsigned int i=0; i<objects.size(); i++)
364 for(std::vector<Object *>::iterator i=objects.begin(); i!=objects.end(); i++)
366 newContainer->Add(*i);
367 (*i)->Reparent(newContainer);
370 // & clear our vector
375 void Container::MoveSelectedContentsTo(Container * newContainer)
378 if (newContainer == NULL)
381 // Shuffle the contents of this container to the new one
382 for(std::vector<Object *>::iterator i=objects.begin(); i!=objects.end();)
384 if ((*i)->state != OSSelected)
390 newContainer->Add(*i);
391 (*i)->Reparent(newContainer);
397 /*virtual*/ void Container::Enumerate(FILE * file)
399 // Only put "CONTAINER" markers if *not* the top level container
401 fprintf(file, "CONTAINER\n");
403 for(uint i=0; i<objects.size(); i++)
404 objects[i]->Enumerate(file);
407 fprintf(file, "ENDCONTAINER\n");