src/SUPERVGUI/SUPERVGUI_CtrlLink.cxx

   1 //  SUPERV SUPERVGUI : GUI for Supervisor component
   2 //
   3 //  Copyright (C) 2003  CEA/DEN, EDF R&D
   4 //
   5 //
   6 //
   7 //  File   : SUPERVGUI_CtrlLink.cxx
   8 //  Author : Vitaly SMETANNIKOV
   9 //  Module : SUPERV
  10
  11 using namespace std;
  12 #include "SUPERVGUI_CtrlLink.h"
  13 #include "SUPERVGUI_Graph.h"
  14 #include "SUPERVGUI_GraphNode.h"
  15
  16 #define LINE_WIDTH 2
  17 #define DRAW_CLR Qt::black
  18
  19 SUPERVGUI_CtrlLink::SUPERVGUI_CtrlLink(SUPERVGUI_Graph* theGraph,
  20                                       SUPERVGUI_GraphNode* theFromNode,
  21                                       SUPERVGUI_GraphNode* theToNode)
  22 {
  23   myOutNode = theFromNode;
  24   myInNode = theToNode;
  25   myGraph = theGraph;
  26 }
  27
  28
  29
  30 void SUPERVGUI_CtrlLink::paint(QPainter* thePainter, bool toErase) {
  31   if ((myGraph == NULL) || (myInNode == NULL) || (myOutNode == NULL))
  32     return;
  33   thePainter->save();
  34
  35   QPen aDataPen;
  36   aDataPen.setWidth(LINE_WIDTH);
  37   if (toErase) {
  38     aDataPen.setColor(myGraph->viewport()->paletteBackgroundColor());
  39   } else {
  40     aDataPen.setColor(DRAW_CLR);
  41   }
  42   thePainter->setPen(aDataPen);
  43   thePainter->moveTo(myOutNode->getOutConnectPnt());
  44   thePainter->lineTo(myInNode->getInConnectPnt());
  45
  46   thePainter->restore();
  47 }