void GraphEditor::mousePressEvent(QMouseEvent* e)
{GeometricGraph & G = *(gwp->pGG);
QPoint p((int)e->pos().x(),(int)e->pos().y());
setFocus(); // as we might loose the focus
ColorItem *coloritem;
if(FindItem(p,coloritem) != 0)
{if(e->button() == Qt::LeftButton)
{if(coloritem->node)
{gwp->NodeColorItem[color_node]->SetPenColor(White);
coloritem->SetPenColor(coloritem->brush_color);
color_node = coloritem->brush_color;
G.vcolor.definit(color_node);
}
else
{gwp->EdgeColorItem[color_edge]->SetPenColor(White);
coloritem->SetPenColor(coloritem->brush_color);
color_edge = coloritem->brush_color;
G.ecolor.definit(color_edge);
}
return;
}
else if(e->button() == Qt::RightButton)
{QString t;
if(coloritem->node)
t.sprintf("Vertex color:%s",ColorName[coloritem->brush_color]);
else
t.sprintf("Edge color:%s",ColorName[coloritem->brush_color]);
gwp->info_item = CreateInfoItem(gwp,t,p);
setCursor(QCursor(Qt::WhatsThisCursor));
return;
}
}
ThickItem *thickitem;
if(FindItem(p,thickitem) != 0)
{if(e->button() == Qt::LeftButton)
{gwp->EdgeThickItem[width_edge]->SetBrushColor(White);
thickitem->SetBrushColor(Yellow);
width_edge = thickitem->width;
G.ewidth.definit(width_edge);
return;
}
else if(e->button() == Qt::RightButton)
{QString t;
t.sprintf("Edge width:%d",thickitem->width);
gwp->info_item = CreateInfoItem(gwp,t,p);
setCursor(QCursor(Qt::WhatsThisCursor));
return;
}
}
if(e->button() == Qt::RightButton )
{NodeItem* node;
EdgeItem *edge;
QString t;
int rtt = FindItem(p,node,edge);
if(rtt == 0)rtt = FindItem(p,edge);//augment the collision zone
if(rtt == node_rtti)
if (G.Set().exist(PROP_VSLABEL) && G.Set(tvertex()).exist(PROP_SLABEL))
{QString tt;
Prop1<svector<tstring *> >vslabel(G.Set(),PROP_VSLABEL);
Prop<int> slabel(G.Set(tvertex()),PROP_SLABEL,0);
if (vslabel()[slabel[node->v]]==(tstring *)0) tt="(null)";
else tt=~(*(vslabel()[slabel[node->v]]));
t.sprintf("vertex:%d Label:%d (%s)",(node->v)(),G.vlabel[node->v],(const char *)tt.toLatin1());
}
else
t.sprintf("vertex:%d Label:%d",(node->v)(),G.vlabel[node->v]);
else if(rtt == edge_rtti)
{double d = Distance(G.vcoord[G.vin[edge->e]],G.vcoord[G.vin[-(edge->e)]])+.5;
t.sprintf("edge:%d Label:%d len:%d",(edge->e)(),G.elabel[edge->e],(int)d);
}
else
{t.sprintf("(%d,%d)",(int)e->pos().x(),(int)e->pos().y());
setCursor(QCursor(Qt::BlankCursor));
}
gwp->info_item = CreateInfoItem(gwp,t,p);
return;
}
//GetMouseAction_1 returns the active radio button (0,5)
int MouseAction = GetMouseAction_1();
bool Shift = e->modifiers() == Qt::ShiftModifier;
bool Control = e->modifiers() == Qt::ControlModifier;
bool SControl = e->modifiers() == (Qt::ShiftModifier | Qt::ControlModifier);
if(e->button() == Qt::MidButton) //move
MouseAction = (Shift) ? -3 : 3;
else if(Shift && MouseAction == 1) //add
MouseAction = -1; // delete vertex or edge
else if(Control && MouseAction == 1)
MouseAction = 10; //duplicate graph
else if(SControl && MouseAction == 1)
MouseAction = 11; //duplicate +
else if(Shift && MouseAction == 2) //Orient or reorient if oriented
MouseAction = -2; //disorient
else if(Shift && MouseAction == 3) //move vertices
MouseAction = -3; //move colored vertices
else if(Shift && MouseAction == 4) //bissect
MouseAction = -4; //contract
else if(Shift && MouseAction == 5) //define exterior face
MouseAction = -5; //define extbrin
else if(Shift && MouseAction == 6) //define a label
MouseAction = -6; //reset all labels to indices
if(MouseAction == 0) // color
{NodeItem* node;
EdgeItem *edge;
int rtt = FindItem(p,node,edge);
if(rtt == 0) //augment the collision zone
{rtt = FindItem(p,edge);
if(rtt == 0)return;
}
if(rtt == node_rtti)
{mywindow->UndoTouch(false);
G.vcolor[node->v] = color_node;
node->SetColor(color[color_node]);
}
else if(rtt == edge_rtti)
{mywindow->UndoTouch(false);
G.ecolor[edge->e] = color_edge;
G.ewidth[edge->e] = width_edge;
if(edge->lower) edge->SetColor(color[color_edge]);
else edge->opp->SetColor(color[color_edge]);
}
return;
}
else if(MouseAction == 1) // Start create an edge
{mywindow->UndoTouch(false);
Prop<NodeItem *> nodeitem(G.Set(tvertex()),PROP_CANVAS_ITEM);
NodeItem* node;
EdgeItem *edge;
tvertex v;
int h = (int)gwp->canvas->height();
int rtt = FindItem(p,node,edge);
if(rtt != node_rtti)// add a vertex
{Tpoint pp((double)p.x(),(double)(h - p.y()));
v = G.NewVertex(pp);
ToGrid(v);
nodeitem[v] = node = CreateNodeItem(v,gwp);
mywindow->mouse_actions->ButtonUndoGrid->setDisabled(true);
}
else
v = node->v;
start_position = QPoint((int)G.vcoord[v].x(),h-(int)G.vcoord[v].y());
node->SetColor(Qt::red);
gwp->curs_item = new CursItem(v,start_position,gwp);
}
else if(MouseAction == -1) // Delete
{NodeItem* node;
EdgeItem *edge;
int rtt = FindItem(p,node,edge);
if(rtt == 0) //augment the collision zone
{rtt = FindItem(p,edge);
if(rtt == 0)return;
}
if(rtt == node_rtti)
{mywindow->UndoTouch(true);
G.DeleteVertex(node->v);
mywindow->mouse_actions->ButtonUndoGrid->setDisabled(true);
}
else
{mywindow->UndoTouch(true);
G.DeleteEdge(edge->e);
}
load(false);
mywindow->information();// Informations
PrintSizeGrid();
return;
}
else if(MouseAction == 3) // Start moving a vertex
{NodeItem* node;
EdgeItem *edge;
int rtt = FindItem(p,node,edge);
if(rtt != node_rtti)return;
mywindow->UndoTouch(false);
gwp->moving_item = node;
start_position = p;
return;
}
else if(MouseAction == -3) // Start moving a subgraph
{mywindow->UndoTouch(false);
gwp->moving_subgraph = true;
start_position = p;
return;
}
else if(MouseAction == 4) // Bissect an edge
{mywindow->UndoTouch(true);
if(FitToGrid)//and we are sure that ButtonFitGrid exists
mywindow->mouse_actions->ButtonFitGrid->setChecked(false);
mywindow->mouse_actions->ButtonUndoGrid->setDisabled(true);
EdgeItem *edge;
int rtt = FindItem(p,edge);
if(rtt != edge_rtti)return;
G.BissectEdge(edge->e);
DoNormalise = false;
load(true);
DoNormalise = true;
mywindow->information();// Informations
return;
}
else if(MouseAction == -4) // Contract an edge
{EdgeItem *edge;
int rtt = FindItem(p,edge);
if(rtt != edge_rtti)return;
mywindow->UndoTouch(true);
// provisoire
if(edge->lower)G.ReverseEdge(edge->e);
// end provisoire
G.ContractEdge(edge->e);
load(false);
mywindow->information();// Informations
return;
}
else if(MouseAction == 5) // Color Exterior face
{GeometricGraph & G = *(gwp->pGG);
Prop<EdgeItem *> edgeitem(G.Set(tedge()),PROP_CANVAS_ITEM);
Tpoint pp((double)p.x(),(double)(gwp->canvas->height()-p.y()));
if(G.FindExteriorFace(pp) == 0)return;
//ColorExteriorface
tedge e;
ForAllEdges(e,G)edgeitem[e]->SetColor(color[color_edge]);
tbrin b0 = G.extbrin();
tbrin b = b0;
do
{e = b.GetEdge();
edgeitem[e]->SetColor(color[Red]);
} while((b = G.cir[-b]) != b0);
if(b0() > 0)
edgeitem[b0.GetEdge()]->SetColor(color[Green],false);
else
edgeitem[b0.GetEdge()]->opp->SetColor(color[Green],false);
return;
}
else if(MouseAction == -5) // Define Extbrin
{EdgeItem *edge;
int rtt = FindItem(p,edge);
if(rtt != edge_rtti)return;
Prop<EdgeItem *> edgeitem(G.Set(tedge()),PROP_CANVAS_ITEM);
tedge je;
ForAllEdges(je,G)edgeitem[je]->SetColor(color[color_edge]);
GeometricGraph & G = *(gwp->pGG);
je = edge->e;
// Prop<NodeItem *> nodeitem(G.Set(tvertex()),PROP_CANVAS_ITEM);
// NodeItem *n1 = nodeitem[G.vin[je]]; Tpoint p1(n1->x(),n1->y());
// NodeItem *n2 = nodeitem[G.vin[-je]]; Tpoint p2(n2->x(),n2->y());
// Tpoint pp((double)p.x(),(double)p.y());
// G.extbrin() = (Distance2(pp,p1) < Distance2(pp,p2)) ? je.firsttbrin() : je.secondtbrin();
G.extbrin() = (edge->lower ) ? je.firsttbrin() : je.secondtbrin();
edge->SetColor(color[Green],false);
return;
}
else if(MouseAction == 6) // Modify label
{NodeItem* node;
EdgeItem *edge;
int rtt = FindItem(p,node,edge);
if(rtt != node_rtti)return;
tvertex v = node->v;
bool ok;
//int res = QInputDialog::getInteger(this,"Pigale","Enter a number:",(int)G.vlabel[node->v],0,2147483647,1,&ok);
int res = QInputDialog::getInt(this,"Pigale","Enter a number:",(int)G.vlabel[node->v],0,2147483647,1,&ok);
if(!ok)return;
G.vlabel[node->v] = res;
QString t = getVertexLabel(G.Container(),v);
node->SetText(t);
return;
}
else if(MouseAction == -6) // Reset all labels
{Prop<NodeItem *> nodeitem(G.Set(tvertex()),PROP_CANVAS_ITEM);
for(tvertex v = 1; v <= G.nv();v++)
{G.vlabel[v] = v();
nodeitem[v]->SetText(QString("%1").arg(v()));
}
for(tedge e = 1; e <= G.ne();e++)
G.elabel[e] = e();
}
else if(MouseAction == 2 || MouseAction == -2) // Orient/Reverse or deorient
{Prop<bool> eoriented(G.Set(tedge()),PROP_ORIENTED,false);
Prop<bool> reoriented(G.Set(tedge()),PROP_REORIENTED);
Prop<EdgeItem *> edgeitem(G.Set(tedge()),PROP_CANVAS_ITEM);
mywindow->setShowOrientation(true);
EdgeItem *edge;
int rtt = FindItem(p,edge);
if(rtt != edge_rtti)return;
mywindow->UndoTouch(true);
if(MouseAction == 2)
{if(eoriented[edge->e])
{G.ReverseEdge(edge->e); eoriented[edge->e] = true;
reoriented[edge->e] = false;
edgeitem[edge->e] = CreateEdgeItem(edge->e,gwp);
if(edge->arrow)
scene()->removeItem(edge->arrow);
else
scene()->removeItem(edge->opp->arrow);
scene()->removeItem(edge->opp);scene()->removeItem(edge);
mywindow->information();// Informations
return;
}
else
{eoriented[edge->e] = true;
if(edge->lower)
{G.ReverseEdge(edge->e);reoriented[edge->e] = false;}
edgeitem[edge->e] = CreateEdgeItem(edge->e,gwp);
if(edge->arrow)
scene()->removeItem(edge->arrow);
else
scene()->removeItem(edge->opp->arrow);
scene()->removeItem(edge->opp);scene()->removeItem(edge);
mywindow->information();// Informations
return;
}
}
else
{eoriented[edge->e] = false;
edgeitem[edge->e] = CreateEdgeItem(edge->e,gwp);
if(edge->arrow)
scene()->removeItem(edge->arrow);
else
scene()->removeItem(edge->opp->arrow);
scene()->removeItem(edge->opp);scene()->removeItem(edge);
mywindow->information();// Informations
return;
}
}
else if(MouseAction == 10)// Duplicate the sugraph of the current color
{mywindow->UndoTouch(true);
if(FitToGrid)//and we are sure that ButtonFitGrid exists
mywindow->mouse_actions->ButtonFitGrid->setChecked(false);
mywindow->mouse_actions->ButtonUndoGrid->setDisabled(true);
short vcol=0; G.vcolor.getinit(vcol);
G.vcolor.definit((short)((vcol+1)%16));
GeometricGraph & G = *(gwp->pGG);
Tpoint translate(this->width()/2.,0);
int n = G.nv();
svector<tvertex> newvertex(1,n);
tvertex v;
for(v = 1; v <= n;v++)//translate all the graph
G.vcoord[v] /= 2.;
for(v = 1; v <= n;v++)
{if(G.vcolor[v] != vcol)continue;
newvertex[v] = G.NewVertex(G.vcoord[v] + translate);
}
int m = G.ne();
tvertex v1,v2;
for(tedge e = 1; e <= m;e++)
{v1 = G.vin[e];v2 = G.vin[-e];
if(G.vcolor[v1] == vcol && G.vcolor[v2] == vcol)
G.NewEdge(newvertex[v1],newvertex[v2]);
}
load(true);
mywindow->information();// Informations
}
else if(MouseAction == 11)
//Duplicate the sugraph of the current color
// and add edges between a new vertex and its father
{mywindow->UndoTouch(true);
if(FitToGrid)//and we are sure that ButtonFitGrid exists
mywindow->mouse_actions->ButtonFitGrid->setChecked(false);
mywindow->mouse_actions->ButtonUndoGrid->setDisabled(true);
mywindow->mouse_actions->ButtonFitGrid->setChecked(false);
short vcol=0; G.vcolor.getinit(vcol);
G.vcolor.definit((short)((vcol+1)%16));
GeometricGraph & G = *(gwp->pGG);
Tpoint translate(this->width()/2.,0);
int n = G.nv();
svector<tvertex> newvertex(1,n);
tvertex v;
for(v = 1; v <= n;v++)//translate all the graph
G.vcoord[v] /= 2.;
for(v = 1; v <= n;v++)
{if(G.vcolor[v] != vcol)continue;
newvertex[v] = G.NewVertex(G.vcoord[v] + translate);
}
int m = G.ne();
tvertex v1,v2;
for(tedge e = 1; e <= m;e++)
{v1 = G.vin[e];v2 = G.vin[-e];
if(G.vcolor[v1] == vcol && G.vcolor[v2] == vcol)
G.NewEdge(newvertex[v1],newvertex[v2]);
}
for(v = 1; v <= n;v++)
{if(G.vcolor[v] != vcol)continue;
G.NewEdge(v,newvertex[v]);
}
load(true);
mywindow->information();// Informations
}
}
void GraphEditor::mouseReleaseEvent(QMouseEvent* event)
{//setRenderHints(QPainter::Antialiasing);
if(gwp->info_item) //end info
{scene()->removeItem(gwp->info_item->rectitem);
scene()->removeItem(gwp->info_item);
gwp->info_item = 0;
setCursor(QCursor(Qt::ArrowCursor));
return;
}
if(gwp->moving_item) //end moving a vertex
{if(!FitToGrid)
{gwp->moving_item = 0;return;}
GeometricGraph & G = *(gwp->pGG);
NodeItem *node = gwp->moving_item;
tvertex v = node->v;
double prev_x = G.vcoord[v].x();
double prev_y = G.vcoord[v].y();
ToGrid(v);
double dx = G.vcoord[v].x() - prev_x;
double dy = G.vcoord[v].y() - prev_y;
G.vcoord[v].x() = prev_x;
G.vcoord[v].y() = prev_y;
node->moveBy(dx,-dy);
gwp->moving_item = 0;
UpdateSizeGrid();
PrintSizeGrid();
return;
}
if(gwp->moving_subgraph == true)
{gwp->moving_subgraph = false;
if(!FitToGrid)return;
GeometricGraph & G = *(gwp->pGG);
Prop<NodeItem *> nodeitem(G.Set(tvertex()),PROP_CANVAS_ITEM);
short vcol=0; G.vcolor.getinit(vcol);
NodeItem * node;
// Find a vertex of the subgraph
tvertex mv = 0;
tvertex v;
for(v = 1; v <= G.nv();v++)
{node =(NodeItem *)nodeitem[v];
if(G.vcolor[node->v] != vcol)continue;
else {mv = v;break;}
}
if(!mv)return;
double prev_x = G.vcoord[mv].x();
double prev_y = G.vcoord[mv].y();
ToGrid(mv);
double dx = G.vcoord[mv].x() - prev_x;
double dy = G.vcoord[mv].y() - prev_y;
G.vcoord[mv].x() = prev_x;
G.vcoord[mv].y() = prev_y;
for(v = 1;v <= G.nv();v++)
{node =(NodeItem *)nodeitem[v];
if(G.vcolor[node->v] != vcol)continue;
node->moveBy(dx,-dy);
}
UpdateSizeGrid();
PrintSizeGrid();
return;
}
if(gwp->curs_item)// end creating an edge
{GeometricGraph & G = *(gwp->pGG);
Prop<EdgeItem *> edgeitem(G.Set(tedge()),PROP_CANVAS_ITEM);
Prop<NodeItem *> nodeitem(G.Set(tvertex()),PROP_CANVAS_ITEM);
NodeItem* node;
EdgeItem *edge;
tvertex v1,v2;
// Reset the color of starting vertex
v1 = gwp->curs_item->v;
node = (NodeItem *)(nodeitem[v1]); node->SetColor(color[G.vcolor[v1]]);
QPoint p(event->pos());
ToGrid(p);
int rtt = FindItem(p,node,edge);
v2 = (rtt != node_rtti) ? 0 : node->v;
if(rtt != node_rtti) //create a vertex
{int h = (int)gwp->canvas->height();
Tpoint pp((double)p.x(),(double)(h - p.y()));
v2 = G.NewVertex(pp);ToGrid(v2);
nodeitem[v2] = CreateNodeItem(v2,gwp);
mywindow->mouse_actions->ButtonUndoGrid->setDisabled(true);
if(IsGrid)UpdateSizeGrid();
}
else
v2 = node->v;
if(v1 != v2) // Create an edge
{tedge e = G.NewEdge(v1,v2);
edgeitem[e] = CreateEdgeItem(e,gwp);
}
delete gwp->curs_item; gwp->curs_item = 0;
mywindow->information();// Informations
if(v1 == v2) // We have created a vertex
PrintSizeGrid();
return;
}
}