orte/contrib/shape/MyQFrame.cpp

   1 /****************************************************************
   2 **
   3 ** Implementation MyQFrame class
   4 **
   5 ****************************************************************/
   6
   7 #include "MyQFrame.h"
   8 #include <QPolygon>
   9 #include <QMouseEvent>
  10 #include <QPaintEvent>
  11
  12 MyQFrame::MyQFrame( QWidget *parent)
  13         : QFrame( parent)
  14 {
  15     mousePressed=0;
  16     objects[0]=objects[1]=objects[2]=objects[3]=objects[4]=0;
  17
  18     connect(this,SIGNAL(changed()),this,SLOT(update()));
  19 }
  20
  21
  22 void MyQFrame::activateObject(int object,int color, int shape) {
  23     if (object>4) return;
  24     objects[object]=1;
  25     switch(color) {
  26         case 0:colors[object]=QColor(0,0,255);break;
  27         case 1:colors[object]=QColor(0,255,0);break;
  28         case 2:colors[object]=QColor(255,0,0);break;
  29         case 3:colors[object]=QColor(0,0,0);break;
  30         case 4:colors[object]=QColor(255,255,0);break;
  31     }
  32     shapes[object]=shape;
  33 }
  34
  35 void MyQFrame::deactivateObject(int object) {
  36     if (object>4) return;
  37     objects[object]=0;
  38     emit changed();
  39 }
  40
  41 void MyQFrame::setPosition(int object,QRect position) {
  42     positions[object]=position;
  43     emit changed();
  44 }
  45
  46 void MyQFrame::paintEvent(QPaintEvent*)
  47 {
  48     QPainter p(this);
  49
  50     for(int i=0;i<5;i++) {
  51         if (!objects[i]) continue;
  52         p.setBrush(colors[i]);
  53         p.setPen(Qt::NoPen);
  54         switch(shapes[i]){
  55             case 0://rectangle
  56                 p.drawRect(positions[i]);
  57                 break;
  58             case 1: //ellipse
  59                 p.drawEllipse(positions[i]);
  60                 break;
  61             case 2: //triangle
  62                 QPolygon pt;
  63                 pt.putPoints(0,3, positions[i].center().x(),positions[i].top(),
  64                                   positions[i].right(),positions[i].bottom(),
  65                                   positions[i].left(),positions[i].bottom());
  66                 p.drawPolygon(pt);
  67                 break;
  68         }
  69         QString strPos;
  70         strPos="X:" + QString::number(positions[i].center().x())+" " +
  71                "Y:"+QString::number(positions[i].center().y());
  72         p.drawText(positions[i].left()-(70-positions[i].width())/2,positions[i].top()-1,strPos);
  73     }
  74
  75 }
  76
  77 void MyQFrame::mouseMoveEvent(QMouseEvent *e)
  78 {
  79     if(mousePressed==0) return;
  80     mouseX=e->pos().x();
  81     mouseY=e->pos().y();
  82 }
  83
  84 void MyQFrame::mousePressEvent (QMouseEvent *e)
  85 {
  86     mousePressed=1;
  87     mouseX=e->pos().x();
  88     mouseY=e->pos().y();
  89 }
  90
  91 void MyQFrame::mouseReleaseEvent (QMouseEvent *)
  92 {
  93     mousePressed=0;
  94 }