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_debug.h"
  21 #include "rs_dialogfactory.h"
  22 #include "graphicview.h"
  23 #include "rs_preview.h"
  24
  25 ActionDrawLineTangent1::ActionDrawLineTangent1(RS_EntityContainer & container, GraphicView & graphicView): ActionInterface("Draw Tangents 1",
  26                 container, graphicView)
  27 {
  28         tangent = NULL;
  29         point = Vector(false);
  30         circle = NULL;
  31 }
  32
  33 ActionDrawLineTangent1::~ActionDrawLineTangent1()
  34 {
  35 }
  36
  37 void ActionDrawLineTangent1::trigger()
  38 {
  39         ActionInterface::trigger();
  40
  41         if (tangent)
  42         {
  43                 RS_Entity * newEntity = NULL;
  44                 newEntity = new RS_Line(container, tangent->getData());
  45
  46                 if (newEntity)
  47                 {
  48                         newEntity->setLayerToActive();
  49                         newEntity->setPenToActive();
  50                         container->addEntity(newEntity);
  51
  52                         // upd. undo list:
  53                         if (document)
  54                         {
  55                                 document->startUndoCycle();
  56                                 document->addUndoable(newEntity);
  57                                 document->endUndoCycle();
  58                         }
  59
  60                         deleteSnapper();
  61                         graphicView->drawEntity(newEntity);
  62
  63                         setStatus(SetPoint);
  64                 }
  65
  66                 delete tangent;
  67                 tangent = NULL;
  68         }
  69         else
  70                 RS_DEBUG->print("ActionDrawLineTangent1::trigger:"
  71                         " Entity is NULL\n");
  72 }
  73
  74 void ActionDrawLineTangent1::mouseMoveEvent(QMouseEvent * e)
  75 {
  76         RS_DEBUG->print("ActionDrawLineTangent1::mouseMoveEvent begin");
  77         Vector mouse(graphicView->toGraphX(e->x()), graphicView->toGraphY(e->y()));
  78
  79         switch (getStatus())
  80         {
  81         case SetPoint:
  82                 point = snapPoint(e);
  83                 break;
  84
  85         case SetCircle:
  86         {
  87                 RS_Entity * en = catchEntity(e, RS2::ResolveAll);
  88
  89                 if (en && (en->rtti() == RS2::EntityCircle
  90                         || en->rtti() == RS2::EntityArc
  91                         || en->rtti() == RS2::EntityEllipse))
  92                 {
  93                         circle = en;
  94                         RS_Creation creation(NULL, NULL);
  95                         RS_Line * t = creation.createTangent1(mouse, point, circle);
  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("ActionDrawLineTangent1::mouseMoveEvent end");
 118 }
 119
 120 void ActionDrawLineTangent1::mouseReleaseEvent(QMouseEvent * e)
 121 {
 122         if (e->button() == Qt::RightButton)
 123         {
 124                 deletePreview();
 125                 clearPreview();
 126                 deleteSnapper();
 127                 init(getStatus() - 1);
 128         }
 129         else
 130         {
 131                 switch (getStatus())
 132                 {
 133                 case SetPoint:
 134                 {
 135                         Vector ce(snapPoint(e));
 136                         coordinateEvent(&ce);
 137                 }
 138                         break;
 139
 140                 case SetCircle:
 141                         trigger();
 142                         break;
 143                 }
 144         }
 145 }
 146
 147 void ActionDrawLineTangent1::coordinateEvent(Vector * e)
 148 {
 149         if (e == NULL)
 150                 return;
 151
 152         switch (getStatus())
 153         {
 154         case SetPoint:
 155                 point = *e;
 156                 deleteSnapper();
 157                 graphicView->moveRelativeZero(point);
 158                 setStatus(SetCircle);
 159                 break;
 160
 161         default:
 162                 break;
 163         }
 164 }
 165
 166 void ActionDrawLineTangent1::updateMouseButtonHints()
 167 {
 168         if (RS_DIALOGFACTORY != NULL)
 169         {
 170                 switch (getStatus())
 171                 {
 172                 case SetPoint:
 173                         RS_DIALOGFACTORY->updateMouseWidget(tr("Specify point"), tr("Cancel"));
 174                         break;
 175
 176                 case SetCircle:
 177                         RS_DIALOGFACTORY->updateMouseWidget(tr("Select circle, arc or ellipse"),
 178                                 tr("Back"));
 179                         break;
 180
 181                 default:
 182                         RS_DIALOGFACTORY->updateMouseWidget("", "");
 183                         break;
 184                 }
 185         }
 186 }
 187
 188 void ActionDrawLineTangent1::updateMouseCursor()
 189 {
 190         graphicView->setMouseCursor(RS2::CadCursor);
 191 }
 192
 193 void ActionDrawLineTangent1::updateToolBar()
 194 {
 195         if (RS_DIALOGFACTORY)
 196         {
 197                 if (!isFinished())
 198                         RS_DIALOGFACTORY->requestToolBar(RS2::ToolBarSnap);
 199                 else
 200                         RS_DIALOGFACTORY->requestToolBar(RS2::ToolBarLines);
 201         }
 202 }