Shamusworld >> Repos - architektonas/blob - src/actions/rs_actiondrawlinetangent1.cpp

   1 // rs_actiondrawlinetangent1.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_actiondrawlinetangent1.h"
  16
  17 #include "rs_creation.h"
  18 #include "rs_dialogfactory.h"
  19 #include "rs_graphicview.h"
  20 #include "rs_preview.h"
  21
  22 RS_ActionDrawLineTangent1::RS_ActionDrawLineTangent1(RS_EntityContainer & container, RS_GraphicView & graphicView): RS_PreviewActionInterface("Draw Tangents 1",
  23                 container, graphicView)
  24 {
  25         tangent = NULL;
  26         point = Vector(false);
  27         circle = NULL;
  28 }
  29
  30 RS_ActionDrawLineTangent1::~RS_ActionDrawLineTangent1()
  31 {
  32 }
  33
  34 void RS_ActionDrawLineTangent1::trigger()
  35 {
  36         RS_PreviewActionInterface::trigger();
  37
  38         if (tangent != NULL)
  39         {
  40                 RS_Entity * newEntity = NULL;
  41                 newEntity = new RS_Line(container, tangent->getData());
  42
  43                 if (newEntity != NULL)
  44                 {
  45                         newEntity->setLayerToActive();
  46                         newEntity->setPenToActive();
  47                         container->addEntity(newEntity);
  48
  49                         // upd. undo list:
  50                         if (document != NULL)
  51                         {
  52                                 document->startUndoCycle();
  53                                 document->addUndoable(newEntity);
  54                                 document->endUndoCycle();
  55                         }
  56
  57                         deleteSnapper();
  58                         graphicView->drawEntity(newEntity);
  59
  60                         setStatus(SetPoint);
  61                 }
  62
  63                 delete tangent;
  64                 tangent = NULL;
  65         }
  66         else
  67                 RS_DEBUG->print("RS_ActionDrawLineTangent1::trigger:"
  68                         " Entity is NULL\n");
  69 }
  70
  71 void RS_ActionDrawLineTangent1::mouseMoveEvent(QMouseEvent * e)
  72 {
  73         RS_DEBUG->print("RS_ActionDrawLineTangent1::mouseMoveEvent begin");
  74
  75         Vector mouse(graphicView->toGraphX(e->x()), graphicView->toGraphY(e->y()));
  76
  77         switch (getStatus())
  78         {
  79         case SetPoint:
  80                 point = snapPoint(e);
  81                 break;
  82
  83         case SetCircle: {
  84                 RS_Entity * en = catchEntity(e, RS2::ResolveAll);
  85
  86                 if (en != NULL && (en->rtti() == RS2::EntityCircle
  87                                    || en->rtti() == RS2::EntityArc
  88                                    || en->rtti() == RS2::EntityEllipse))
  89                 {
  90                         circle = en;
  91
  92                         RS_Creation creation(NULL, NULL);
  93                         RS_Line * t = creation.createTangent1(mouse,
  94                                         point,
  95                                         circle);
  96
  97                         if (t != NULL)
  98                         {
  99                                 if (tangent != NULL)
 100                                         delete tangent;
 101                                 tangent = (RS_Line *)t->clone();
 102
 103                                 deletePreview();
 104                                 clearPreview();
 105                                 preview->addEntity(t);
 106                                 drawPreview();
 107                         }
 108                 }
 109         }
 110         break;
 111
 112         default:
 113                 break;
 114         }
 115
 116         RS_DEBUG->print("RS_ActionDrawLineTangent1::mouseMoveEvent end");
 117 }
 118
 119 void RS_ActionDrawLineTangent1::mouseReleaseEvent(QMouseEvent * e)
 120 {
 121         if (RS2::qtToRsButtonState(e->button()) == RS2::RightButton)
 122         {
 123                 deletePreview();
 124                 clearPreview();
 125                 deleteSnapper();
 126                 init(getStatus() - 1);
 127         }
 128         else
 129         {
 130                 switch (getStatus())
 131                 {
 132                 case SetPoint: {
 133                         Vector ce(snapPoint(e));
 134                         coordinateEvent(&ce);
 135                 }
 136                 break;
 137
 138                 case SetCircle:
 139                         trigger();
 140                         break;
 141                 }
 142         }
 143 }
 144
 145 void RS_ActionDrawLineTangent1::coordinateEvent(Vector * e)
 146 {
 147         if (e == NULL)
 148                 return;
 149
 150         switch (getStatus())
 151         {
 152         case SetPoint:
 153                 point = *e;
 154                 deleteSnapper();
 155                 graphicView->moveRelativeZero(point);
 156                 setStatus(SetCircle);
 157                 break;
 158
 159         default:
 160                 break;
 161         }
 162 }
 163
 164 void RS_ActionDrawLineTangent1::updateMouseButtonHints()
 165 {
 166         if (RS_DIALOGFACTORY != NULL)
 167         {
 168                 switch (getStatus())
 169                 {
 170                 case SetPoint:
 171                         RS_DIALOGFACTORY->updateMouseWidget(tr("Specify point"),
 172                                 tr("Cancel"));
 173                         break;
 174
 175                 case SetCircle:
 176                         RS_DIALOGFACTORY->updateMouseWidget(tr("Select circle, arc or ellipse"),
 177                                 tr("Back"));
 178                         break;
 179
 180                 default:
 181                         RS_DIALOGFACTORY->updateMouseWidget("", "");
 182                         break;
 183                 }
 184         }
 185 }
 186
 187 void RS_ActionDrawLineTangent1::updateMouseCursor()
 188 {
 189         graphicView->setMouseCursor(RS2::CadCursor);
 190 }
 191
 192 void RS_ActionDrawLineTangent1::updateToolBar()
 193 {
 194         if (RS_DIALOGFACTORY != NULL)
 195         {
 196                 if (!isFinished())
 197                         RS_DIALOGFACTORY->requestToolBar(RS2::ToolBarSnap);
 198                 else
 199                         RS_DIALOGFACTORY->requestToolBar(RS2::ToolBarLines);
 200         }
 201 }
 202
 203 // EOF