Shamusworld >> Repos - architektonas/blob - src/actions/rs_actiondrawlinetangent2.cpp

   1 // rs_actiondrawlinetangent2.cpp
   2 //
   3 // Part of the Architektonas Project
   4 // Originally part of QCad Community Edition by Andrew Mustun
   5 // Extensively rewritten and refactored by James L. Hammons
   6 // (C) 2010 Underground Software
   7 //
   8 // JLH = James L. Hammons <jlhamm@acm.org>
   9 //
  10 // Who  When        What
  11 // ---  ----------  -----------------------------------------------------------
  12 // JLH  06/04/2010  Added this text. :-)
  13 //
  14
  15 #include "rs_actiondrawlinetangent2.h"
  16
  17 #include "rs_creation.h"
  18 #include "rs_dialogfactory.h"
  19 #include "graphicview.h"
  20 #include "rs_preview.h"
  21
  22 RS_ActionDrawLineTangent2::RS_ActionDrawLineTangent2(
  23         RS_EntityContainer & container, GraphicView & graphicView):
  24         RS_PreviewActionInterface("Draw Tangents 2", container, graphicView)
  25 {
  26         tangent = NULL;
  27         circle1 = NULL;
  28         circle2 = NULL;
  29 }
  30
  31 RS_ActionDrawLineTangent2::~RS_ActionDrawLineTangent2()
  32 {
  33 }
  34
  35 void RS_ActionDrawLineTangent2::trigger()
  36 {
  37         RS_PreviewActionInterface::trigger();
  38
  39         if (tangent != NULL)
  40         {
  41                 RS_Entity * newEntity = NULL;
  42                 newEntity = new RS_Line(container, tangent->getData());
  43
  44                 if (newEntity != NULL)
  45                 {
  46                         newEntity->setLayerToActive();
  47                         newEntity->setPenToActive();
  48                         container->addEntity(newEntity);
  49
  50                         // upd. undo list:
  51                         if (document != NULL)
  52                         {
  53                                 document->startUndoCycle();
  54                                 document->addUndoable(newEntity);
  55                                 document->endUndoCycle();
  56                         }
  57                         graphicView->drawEntity(newEntity);
  58                         setStatus(SetCircle1);
  59                 }
  60
  61                 delete tangent;
  62                 tangent = NULL;
  63         }
  64         else
  65                 RS_DEBUG->print("RS_ActionDrawLineTangent2::trigger:"
  66                         " Entity is NULL\n");
  67 }
  68
  69 void RS_ActionDrawLineTangent2::mouseMoveEvent(QMouseEvent * e)
  70 {
  71         RS_DEBUG->print("RS_ActionDrawLineTangent2::mouseMoveEvent begin");
  72
  73         Vector mouse(graphicView->toGraphX(e->x()), graphicView->toGraphY(e->y()));
  74
  75         switch (getStatus())
  76         {
  77         case SetCircle1: {
  78                 RS_Entity * en = catchEntity(e, RS2::ResolveAll);
  79
  80                 if (en != NULL && (en->rtti() == RS2::EntityCircle
  81                                    || en->rtti() == RS2::EntityArc))
  82                         circle1 = en;
  83         }
  84         break;
  85
  86         case SetCircle2: {
  87                 RS_Entity * en = catchEntity(e, RS2::ResolveAll);
  88
  89                 if (en != NULL && (en->rtti() == RS2::EntityCircle
  90                                    || en->rtti() == RS2::EntityArc))
  91                 {
  92                         circle2 = en;
  93
  94                         RS_Creation creation(NULL, NULL);
  95                         RS_Line * t = creation.createTangent2(mouse,
  96                                         circle1,
  97                                         circle2);
  98
  99                         if (t != NULL)
 100                         {
 101                                 if (tangent != NULL)
 102                                         delete tangent;
 103                                 tangent = (RS_Line *)t->clone();
 104
 105                                 deletePreview();
 106                                 clearPreview();
 107                                 preview->addEntity(t);
 108                                 drawPreview();
 109                         }
 110                 }
 111         }
 112         break;
 113
 114         default:
 115                 break;
 116         }
 117
 118         RS_DEBUG->print("RS_ActionDrawLineTangent2::mouseMoveEvent end");
 119 }
 120
 121 void RS_ActionDrawLineTangent2::mouseReleaseEvent(QMouseEvent * e)
 122 {
 123         if (e->button() == Qt::RightButton)
 124         {
 125                 deletePreview();
 126                 clearPreview();
 127                 init(getStatus() - 1);
 128         }
 129         else
 130         {
 131                 switch (getStatus())
 132                 {
 133                 case SetCircle1:
 134                         setStatus(SetCircle2);
 135                         break;
 136
 137                 case SetCircle2:
 138                         trigger();
 139                         break;
 140                 }
 141         }
 142 }
 143
 144 void RS_ActionDrawLineTangent2::updateMouseButtonHints()
 145 {
 146         if (RS_DIALOGFACTORY != NULL)
 147         {
 148                 switch (getStatus())
 149                 {
 150                 case SetCircle1:
 151                         RS_DIALOGFACTORY->updateMouseWidget(tr("Select first circle or arc"),
 152                                 tr("Cancel"));
 153                         break;
 154
 155                 case SetCircle2:
 156                         RS_DIALOGFACTORY->updateMouseWidget(tr("Select second circle or arc"),
 157                                 tr("Back"));
 158                         break;
 159
 160                 default:
 161                         RS_DIALOGFACTORY->updateMouseWidget("", "");
 162                         break;
 163                 }
 164         }
 165 }
 166
 167 void RS_ActionDrawLineTangent2::updateMouseCursor()
 168 {
 169         graphicView->setMouseCursor(RS2::CadCursor);
 170 }
 171
 172 void RS_ActionDrawLineTangent2::updateToolBar()
 173 {
 174         if (RS_DIALOGFACTORY != NULL)
 175                 RS_DIALOGFACTORY->requestToolBar(RS2::ToolBarLines);
 176 }
 177
 178 // EOF