Shamusworld >> Repos - architektonas/blob - src/actions/actiondrawlinetangent1.cpp

   1 // 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 "actiondrawlinetangent1.h"
  16
  17 #include "rs_creation.h"
  18 #include "rs_dialogfactory.h"
  19 #include "graphicview.h"
  20 #include "rs_preview.h"
  21
  22 ActionDrawLineTangent1::ActionDrawLineTangent1(RS_EntityContainer & container, GraphicView & graphicView): ActionInterface("Draw Tangents 1",
  23                 container, graphicView)
  24 {
  25         tangent = NULL;
  26         point = Vector(false);
  27         circle = NULL;
  28 }
  29
  30 ActionDrawLineTangent1::~ActionDrawLineTangent1()
  31 {
  32 }
  33
  34 void ActionDrawLineTangent1::trigger()
  35 {
  36         ActionInterface::trigger();
  37
  38         if (tangent)
  39         {
  40                 RS_Entity * newEntity = NULL;
  41                 newEntity = new RS_Line(container, tangent->getData());
  42
  43                 if (newEntity)
  44                 {
  45                         newEntity->setLayerToActive();
  46                         newEntity->setPenToActive();
  47                         container->addEntity(newEntity);
  48
  49                         // upd. undo list:
  50                         if (document)
  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("ActionDrawLineTangent1::trigger:"
  68                         " Entity is NULL\n");
  69 }
  70
  71 void ActionDrawLineTangent1::mouseMoveEvent(QMouseEvent * e)
  72 {
  73         RS_DEBUG->print("ActionDrawLineTangent1::mouseMoveEvent begin");
  74         Vector mouse(graphicView->toGraphX(e->x()), graphicView->toGraphY(e->y()));
  75
  76         switch (getStatus())
  77         {
  78         case SetPoint:
  79                 point = snapPoint(e);
  80                 break;
  81
  82         case SetCircle:
  83         {
  84                 RS_Entity * en = catchEntity(e, RS2::ResolveAll);
  85
  86                 if (en && (en->rtti() == RS2::EntityCircle
  87                         || en->rtti() == RS2::EntityArc
  88                         || en->rtti() == RS2::EntityEllipse))
  89                 {
  90                         circle = en;
  91                         RS_Creation creation(NULL, NULL);
  92                         RS_Line * t = creation.createTangent1(mouse, point, circle);
  93
  94                         if (t)
  95                         {
  96                                 if (tangent)
  97                                         delete tangent;
  98
  99                                 tangent = (RS_Line *)t->clone();
 100
 101                                 deletePreview();
 102                                 clearPreview();
 103 //                              preview->addEntity(t);
 104                                 drawPreview();
 105                         }
 106                 }
 107         }
 108                 break;
 109
 110         default:
 111                 break;
 112         }
 113
 114         RS_DEBUG->print("ActionDrawLineTangent1::mouseMoveEvent end");
 115 }
 116
 117 void ActionDrawLineTangent1::mouseReleaseEvent(QMouseEvent * e)
 118 {
 119         if (e->button() == Qt::RightButton)
 120         {
 121                 deletePreview();
 122                 clearPreview();
 123                 deleteSnapper();
 124                 init(getStatus() - 1);
 125         }
 126         else
 127         {
 128                 switch (getStatus())
 129                 {
 130                 case SetPoint:
 131                 {
 132                         Vector ce(snapPoint(e));
 133                         coordinateEvent(&ce);
 134                 }
 135                         break;
 136
 137                 case SetCircle:
 138                         trigger();
 139                         break;
 140                 }
 141         }
 142 }
 143
 144 void ActionDrawLineTangent1::coordinateEvent(Vector * e)
 145 {
 146         if (e == NULL)
 147                 return;
 148
 149         switch (getStatus())
 150         {
 151         case SetPoint:
 152                 point = *e;
 153                 deleteSnapper();
 154                 graphicView->moveRelativeZero(point);
 155                 setStatus(SetCircle);
 156                 break;
 157
 158         default:
 159                 break;
 160         }
 161 }
 162
 163 void ActionDrawLineTangent1::updateMouseButtonHints()
 164 {
 165         if (RS_DIALOGFACTORY != NULL)
 166         {
 167                 switch (getStatus())
 168                 {
 169                 case SetPoint:
 170                         RS_DIALOGFACTORY->updateMouseWidget(tr("Specify point"), tr("Cancel"));
 171                         break;
 172
 173                 case SetCircle:
 174                         RS_DIALOGFACTORY->updateMouseWidget(tr("Select circle, arc or ellipse"),
 175                                 tr("Back"));
 176                         break;
 177
 178                 default:
 179                         RS_DIALOGFACTORY->updateMouseWidget("", "");
 180                         break;
 181                 }
 182         }
 183 }
 184
 185 void ActionDrawLineTangent1::updateMouseCursor()
 186 {
 187         graphicView->setMouseCursor(RS2::CadCursor);
 188 }
 189
 190 void ActionDrawLineTangent1::updateToolBar()
 191 {
 192         if (RS_DIALOGFACTORY)
 193         {
 194                 if (!isFinished())
 195                         RS_DIALOGFACTORY->requestToolBar(RS2::ToolBarSnap);
 196                 else
 197                         RS_DIALOGFACTORY->requestToolBar(RS2::ToolBarLines);
 198         }
 199 }