//////////////////////////////////////////////////////////////////////
// GLDisplayContext.cpp: implementation of the CGLDisplayContext class.
//
//////////////////////////////////////////////////////////////////////
#include "GLDisplayContext.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CGLDisplayContext::CGLDisplayContext()
{
display = new CListOfCGLObject;
erase = new CListOfCGLObject;
select = new CListOfCGLObject;
selListIter.SetList(select);
selListIter.Init();
viewBox.SetLimits(-1, 1, -1, 1, -1, 1);
mouseSensitivity = 5; //5 pixels sensitivity
}
CGLDisplayContext::~CGLDisplayContext()
{
if(!display->IsEmpty())
display->Clear();
if(!erase->IsEmpty())
erase->Clear();
if(!select->IsEmpty())
select->Clear();
delete display;
delete erase;
delete select;
}
void CGLDisplayContext::Display(CGLObject* aO)
{
if(aO == NULL)
return;
//CGLObject* O = aO->Copy();
if(display->IsEmpty())
viewBox = aO->GetBoundingBox();
else
viewBox.AddBox(aO->GetBoundingBox());
display->Append(aO);
}
void CGLDisplayContext::RefreshVolume()
{
viewBox.SetLimits(-1, 1, -1, 1, -1, 1);
CListIteratorOfListOfCGLObject listIter(display);
for(listIter.Init(); listIter.More(); listIter.Next())
{
CGLObject* pObj = (CGLObject*)listIter.Current();
CBoundingBox b = pObj->GetBoundingBox();
viewBox.AddBox(b);
}
}
void CGLDisplayContext::Erase(CGLObject* aO)
{
erase->Append(display->Remove(aO));
}
void CGLDisplayContext::DisplayAll()
{
CListIteratorOfListOfCGLObject listIter(erase);
for(listIter.Init(); listIter.More(); listIter.Next())
{
CGLObject* eO = listIter.Current();
if(display->IsEmpty())
viewBox = eO->GetBoundingBox();
else
viewBox.AddBox(eO->GetBoundingBox());
display->Append(eO);
listIter.SetCurrent(0);
}
erase->Clear();
}
void CGLDisplayContext::DisplaySelected()
{
if(!HasSelected())
return;
EraseAll();
CListIteratorOfListOfCGLObject listIterD(erase);
CListIteratorOfListOfCGLObject listIterSel(select);
CGLObject* eO = 0, *sO = 0;
for(listIterSel.Init(); listIterSel.More(); listIterSel.Next())
{
sO = listIterSel.Current();
for(listIterD.Init(); listIterD.More(); listIterD.Next())
{
eO = listIterD.Current();
if(eO->GetObjID() == sO->GetObjID())
break;
}
if(display->IsEmpty())
viewBox = eO->GetBoundingBox();
else
viewBox.AddBox(eO->GetBoundingBox());
display->Append(erase->Remove(eO));
}
EmptySelection();
}
void CGLDisplayContext::EraseAll()
{
CListIteratorOfListOfCGLObject listIter(display);
for(listIter.Init(); listIter.More(); listIter.Next())
{
erase->Append(listIter.Current());
listIter.SetCurrent(0);
}
display->Clear();
}
void CGLDisplayContext::EraseSelected()
{
if(!HasSelected())
return;
CListIteratorOfListOfCGLObject listIterD(display);
CListIteratorOfListOfCGLObject listIterSel(select);
CGLObject* eO = 0, *sO = 0;
for(listIterSel.Init(); listIterSel.More(); listIterSel.Next())
{
sO = listIterSel.Current();
for(listIterD.Init(); listIterD.More(); listIterD.Next())
{
eO = listIterD.Current();
if(eO->GetObjID() == sO->GetObjID())
break;
}
Erase(eO);
}
EmptySelection();
viewBox.SetLimits(-1,1,-1,1,-1,1);
for(listIterD.Init(); listIterD.More(); listIterD.Next())
viewBox.AddBox(listIterD.Current()->GetBoundingBox());
}
void CGLDisplayContext::DeleteAll()
{
if(!display->IsEmpty())
display->Clear();
if(!erase->IsEmpty())
erase->Clear();
EmptySelection();
viewBox.SetLimits(-1, 1, -1, 1, -1, 1);
}
void CGLDisplayContext::DeleteSelected()
{
if(!HasSelected())
return;
CListIteratorOfListOfCGLObject listIterD(display);
CListIteratorOfListOfCGLObject listIterSel(select);
CGLObject* eO = 0, *sO = 0;
for(listIterSel.Init(); listIterSel.More(); listIterSel.Next())
{
sO = listIterSel.Current();
for(listIterD.Init(); listIterD.More(); listIterD.Next())
{
eO = listIterD.Current();
if(eO->GetObjID() == sO->GetObjID())
break;
}
delete display->Remove(eO);
}
EmptySelection();
viewBox.SetLimits(-1,1,-1,1,-1,1);
for(listIterD.Init(); listIterD.More(); listIterD.Next())
viewBox.AddBox(listIterD.Current()->GetBoundingBox());
}
void CGLDisplayContext::DeletePoints()
{
EmptySelection();
CListIteratorOfListOfCGLObject listIterD(display);
CGLObject* eO = 0;
for(listIterD.Init(); listIterD.More(); listIterD.Next())
{
eO = listIterD.Current();
if(eO->IsOfType(GLPOINT))
break;
}
delete display->Remove(eO);
}
void CGLDisplayContext::Render(const GLDisplayMode& mode)
{
if(IsEmpty())
return;
CGLObject* O;
// Initialize the names stack
//glInitNames(); commented out for application specific use
//glPushName(0); commented out for application specific use
CListIteratorOfListOfCGLObject listIter(display);
for(listIter.Init(); listIter.More(); listIter.Next())
{
O = listIter.Current();
if(O && !O->IsHidden())
{
//glLoadName(O->GetObjID()); commented out for application specific use
O->Display(O->GetDisplayMode());
}
}
listIter.SetList(select);
for(listIter.Init(); listIter.More(); listIter.Next())
{
O = listIter.Current();
if(O && !O->IsHidden())
O->Hilight(mode);
}
}
bool CGLDisplayContext::Select(GtkGLView* aView, const int& x, const int& y)
{
bool res = false;
CGLObject* O = 0;
unsigned long int id = aView->ProcessSelection(x, y, mouseSensitivity);
if(id)
res = true;
else
{
EmptySelection();
return false;
}
CListIteratorOfListOfCGLObject listIter(display);
for(listIter.Init(); listIter.More(); listIter.Next())
{
O = listIter.Current();
if(O)
{
if(id == O->GetObjID())
{
if(!IsSelected(O))
{
select->Clear();
AddToSelection(O);
}
else
RemoveSelection(O);
}
}
}
return res;
}
bool CGLDisplayContext::MultiSelect(GtkGLView* aView, const int& x, const int& y)
{
bool res = false;
CGLObject* O = 0;
unsigned long int id = aView->ProcessSelection(x, y, mouseSensitivity);
if(id)
res = true;
CListIteratorOfListOfCGLObject listIter(display);
for(listIter.Init(); listIter.More(); listIter.Next())
{
O = listIter.Current();
if(O)
{
if(id == O->GetObjID())
{
if(!IsSelected(O))
AddToSelection(O);
else
RemoveSelection(O);
}
}
}
return res;
}
bool CGLDisplayContext::SweepSelect(GtkGLView* aView, const GdkRectangle& swRect)
{
bool res = false;
CGLObject* O = 0;
unsigned long int *id = new unsigned long int[100];
int no_of_objs = aView->ProcessSweepSelection(swRect, id);
if(no_of_objs)
res = true;
CListIteratorOfListOfCGLObject listIter(display);
for(listIter.Init(); listIter.More(); listIter.Next())
{
O = listIter.Current();
if(O)
{
for(int i = 0; i < no_of_objs; i++)
{
if(id[i] == O->GetObjID())
AddToSelection(O);
}
}
}
delete [] id;
return res;
}
bool CGLDisplayContext::IsEmpty() const
{
return (display->IsEmpty() && erase->IsEmpty());
}
bool CGLDisplayContext::IsDisplayed(const CGLObject* O) const
{
if(O == NULL)
return false;
CListIteratorOfListOfCGLObject li(display);
return li.IsFound(O);
}
bool CGLDisplayContext::IsErased(const CGLObject* O) const
{
if(O == NULL)
return false;
CListIteratorOfListOfCGLObject li(erase);
return li.IsFound(O);
}
bool CGLDisplayContext::IsSelected(const CGLObject* O) const
{
bool b = false;
if(O == NULL)
return false;
CListIteratorOfListOfCGLObject li(select);
for(li.Init(); li.More(); li.Next())
{
if(O->GetObjID() == li.Current()->GetObjID())
{
b = true;
break;
}
}
return b;
}
bool CGLDisplayContext::IsAllDisplayed() const
{
return erase->IsEmpty();
}
bool CGLDisplayContext::IsAllErased() const
{
return display->IsEmpty();
}
bool CGLDisplayContext::HasSelected() const
{
return !select->IsEmpty();
}
void CGLDisplayContext::InitSelected() const
{
selListIter.Init();
}
bool CGLDisplayContext::MoreSelected() const
{
return selListIter.More();
}
void CGLDisplayContext::NextSelected() const
{
selListIter.Next();
}
CGLObject* CGLDisplayContext::CurrentSelected() const
{
CGLObject* sO = selListIter.Current();
CGLObject* O = 0;
CListIteratorOfListOfCGLObject listIter(display);
for(listIter.Init(); listIter.More(); listIter.Next())
{
if(sO->GetObjID() == listIter.Current()->GetObjID())
{
O = listIter.Current();
break;
}
}
return O;
}
//Private
void CGLDisplayContext::AddToSelection(const CGLObject* O)
{
select->Append(O->Copy());
}
void CGLDisplayContext::RemoveSelection(const CGLObject* O)
{
CListIteratorOfListOfCGLObject listIter(select);
for(listIter.Init(); listIter.More(); listIter.Next())
{
if(O->GetObjID() == listIter.Current()->GetObjID())
{
delete select->Remove(listIter.Current());
break;
}
}
}
void CGLDisplayContext::EmptySelection()
{
if(!select->IsEmpty())
select->Clear();
}
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