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 // Portions copyright (C) 2001-2003 RibbonSoft
   7 // Copyright (C) 2010 Underground Software
   8 // See the README and GPLv2 files for licensing and warranty information
   9 //
  10 // JLH = James L. Hammons <jlhamm@acm.org>
  11 //
  12 // Who  When        What
  13 // ---  ----------  -----------------------------------------------------------
  14 // JLH  06/04/2010  Added this text. :-)
  15 //
  16
  17 #include "actiondrawlinetangent1.h"
  18
  19 #include "rs_creation.h"
  20 #include "rs_dialogfactory.h"
  21 #include "graphicview.h"
  22 #include "rs_preview.h"
  23
  24 ActionDrawLineTangent1::ActionDrawLineTangent1(RS_EntityContainer & container, GraphicView & graphicView): ActionInterface("Draw Tangents 1",
  25                 container, graphicView)
  26 {
  27         tangent = NULL;
  28         point = Vector(false);
  29         circle = NULL;
  30 }
  31
  32 ActionDrawLineTangent1::~ActionDrawLineTangent1()
  33 {
  34 }
  35
  36 void ActionDrawLineTangent1::trigger()
  37 {
  38         ActionInterface::trigger();
  39
  40         if (tangent)
  41         {
  42                 RS_Entity * newEntity = NULL;
  43                 newEntity = new RS_Line(container, tangent->getData());
  44
  45                 if (newEntity)
  46                 {
  47                         newEntity->setLayerToActive();
  48                         newEntity->setPenToActive();
  49                         container->addEntity(newEntity);
  50
  51                         // upd. undo list:
  52                         if (document)
  53                         {
  54                                 document->startUndoCycle();
  55                                 document->addUndoable(newEntity);
  56                                 document->endUndoCycle();
  57                         }
  58
  59                         deleteSnapper();
  60                         graphicView->drawEntity(newEntity);
  61
  62                         setStatus(SetPoint);
  63                 }
  64
  65                 delete tangent;
  66                 tangent = NULL;
  67         }
  68         else
  69                 RS_DEBUG->print("ActionDrawLineTangent1::trigger:"
  70                         " Entity is NULL\n");
  71 }
  72
  73 void ActionDrawLineTangent1::mouseMoveEvent(QMouseEvent * e)
  74 {
  75         RS_DEBUG->print("ActionDrawLineTangent1::mouseMoveEvent begin");
  76         Vector mouse(graphicView->toGraphX(e->x()), graphicView->toGraphY(e->y()));
  77
  78         switch (getStatus())
  79         {
  80         case SetPoint:
  81                 point = snapPoint(e);
  82                 break;
  83
  84         case SetCircle:
  85         {
  86                 RS_Entity * en = catchEntity(e, RS2::ResolveAll);
  87
  88                 if (en && (en->rtti() == RS2::EntityCircle
  89                         || en->rtti() == RS2::EntityArc
  90                         || en->rtti() == RS2::EntityEllipse))
  91                 {
  92                         circle = en;
  93                         RS_Creation creation(NULL, NULL);
  94                         RS_Line * t = creation.createTangent1(mouse, point, circle);
  95
  96                         if (t)
  97                         {
  98                                 if (tangent)
  99                                         delete tangent;
 100
 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("ActionDrawLineTangent1::mouseMoveEvent end");
 117 }
 118
 119 void ActionDrawLineTangent1::mouseReleaseEvent(QMouseEvent * e)
 120 {
 121         if (e->button() == Qt::RightButton)
 122         {
 123                 deletePreview();
 124                 clearPreview();
 125                 deleteSnapper();
 126                 init(getStatus() - 1);
 127         }
 128         else
 129         {
 130                 switch (getStatus())
 131                 {
 132                 case SetPoint:
 133                 {
 134                         Vector ce(snapPoint(e));
 135                         coordinateEvent(&ce);
 136                 }
 137                         break;
 138
 139                 case SetCircle:
 140                         trigger();
 141                         break;
 142                 }
 143         }
 144 }
 145
 146 void ActionDrawLineTangent1::coordinateEvent(Vector * e)
 147 {
 148         if (e == NULL)
 149                 return;
 150
 151         switch (getStatus())
 152         {
 153         case SetPoint:
 154                 point = *e;
 155                 deleteSnapper();
 156                 graphicView->moveRelativeZero(point);
 157                 setStatus(SetCircle);
 158                 break;
 159
 160         default:
 161                 break;
 162         }
 163 }
 164
 165 void ActionDrawLineTangent1::updateMouseButtonHints()
 166 {
 167         if (RS_DIALOGFACTORY != NULL)
 168         {
 169                 switch (getStatus())
 170                 {
 171                 case SetPoint:
 172                         RS_DIALOGFACTORY->updateMouseWidget(tr("Specify point"), 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 ActionDrawLineTangent1::updateMouseCursor()
 188 {
 189         graphicView->setMouseCursor(RS2::CadCursor);
 190 }
 191
 192 void ActionDrawLineTangent1::updateToolBar()
 193 {
 194         if (RS_DIALOGFACTORY)
 195         {
 196                 if (!isFinished())
 197                         RS_DIALOGFACTORY->requestToolBar(RS2::ToolBarSnap);
 198                 else
 199                         RS_DIALOGFACTORY->requestToolBar(RS2::ToolBarLines);
 200         }
 201 }