Shamusworld >> Repos - architektonas/blob - src/actions/actiondrawlinetangent2.cpp

   1 // 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 "actiondrawlinetangent2.h"
  16
  17 #include "rs_creation.h"
  18 #include "rs_dialogfactory.h"
  19 #include "graphicview.h"
  20 #include "rs_preview.h"
  21
  22 ActionDrawLineTangent2::ActionDrawLineTangent2(
  23         RS_EntityContainer & container, GraphicView & graphicView):
  24         ActionInterface("Draw Tangents 2", container, graphicView)
  25 {
  26         tangent = NULL;
  27         circle1 = NULL;
  28         circle2 = NULL;
  29 }
  30
  31 ActionDrawLineTangent2::~ActionDrawLineTangent2()
  32 {
  33 }
  34
  35 void ActionDrawLineTangent2::trigger()
  36 {
  37         ActionInterface::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("ActionDrawLineTangent2::trigger:"
  66                         " Entity is NULL\n");
  67 }
  68
  69 void ActionDrawLineTangent2::mouseMoveEvent(QMouseEvent * e)
  70 {
  71         RS_DEBUG->print("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         {
  88                 RS_Entity * en = catchEntity(e, RS2::ResolveAll);
  89
  90                 if (en && (en->rtti() == RS2::EntityCircle
  91                         || en->rtti() == RS2::EntityArc))
  92                 {
  93                         circle2 = en;
  94                         RS_Creation creation(NULL, NULL);
  95                         RS_Line * t = creation.createTangent2(mouse, circle1, circle2);
  96
  97                         if (t)
  98                         {
  99                                 if (tangent)
 100                                         delete tangent;
 101
 102                                 tangent = (RS_Line *)t->clone();
 103
 104                                 deletePreview();
 105                                 clearPreview();
 106 //                              preview->addEntity(t);
 107                                 drawPreview();
 108                         }
 109                 }
 110         }
 111         break;
 112
 113         default:
 114                 break;
 115         }
 116
 117         RS_DEBUG->print("ActionDrawLineTangent2::mouseMoveEvent end");
 118 }
 119
 120 void ActionDrawLineTangent2::mouseReleaseEvent(QMouseEvent * e)
 121 {
 122         if (e->button() == Qt::RightButton)
 123         {
 124                 deletePreview();
 125                 clearPreview();
 126                 init(getStatus() - 1);
 127         }
 128         else
 129         {
 130                 switch (getStatus())
 131                 {
 132                 case SetCircle1:
 133                         setStatus(SetCircle2);
 134                         break;
 135
 136                 case SetCircle2:
 137                         trigger();
 138                         break;
 139                 }
 140         }
 141 }
 142
 143 void ActionDrawLineTangent2::updateMouseButtonHints()
 144 {
 145         if (RS_DIALOGFACTORY != NULL)
 146         {
 147                 switch (getStatus())
 148                 {
 149                 case SetCircle1:
 150                         RS_DIALOGFACTORY->updateMouseWidget(tr("Select first circle or arc"),
 151                                 tr("Cancel"));
 152                         break;
 153
 154                 case SetCircle2:
 155                         RS_DIALOGFACTORY->updateMouseWidget(tr("Select second circle or arc"),
 156                                 tr("Back"));
 157                         break;
 158
 159                 default:
 160                         RS_DIALOGFACTORY->updateMouseWidget("", "");
 161                         break;
 162                 }
 163         }
 164 }
 165
 166 void ActionDrawLineTangent2::updateMouseCursor()
 167 {
 168         graphicView->setMouseCursor(RS2::CadCursor);
 169 }
 170
 171 void ActionDrawLineTangent2::updateToolBar()
 172 {
 173         if (RS_DIALOGFACTORY != NULL)
 174                 RS_DIALOGFACTORY->requestToolBar(RS2::ToolBarLines);
 175 }