Shamusworld >> Repos - architektonas/blob - src/actions/actiondrawcircle3p.cpp

   1 // actiondrawcircle3p.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  06/03/2010  Added this text. :-)
  15 // JLH  09/11/2010  Fixed preview/snapper rendering.
  16 //
  17
  18 #include "actiondrawcircle3p.h"
  19
  20 #include "commandevent.h"
  21 #include "dialogfactory.h"
  22 #include "graphicview.h"
  23 #include "preview.h"
  24
  25 ActionDrawCircle3P::ActionDrawCircle3P(EntityContainer & container,
  26         GraphicView & graphicView):
  27         ActionInterface("Draw circles", container, graphicView)
  28 {
  29         reset();
  30 }
  31
  32 ActionDrawCircle3P::~ActionDrawCircle3P()
  33 {
  34 }
  35
  36 void ActionDrawCircle3P::reset()
  37 {
  38         data.reset();
  39         point1 = Vector(false);
  40         point2 = Vector(false);
  41         point3 = Vector(false);
  42 }
  43
  44 void ActionDrawCircle3P::init(int status)
  45 {
  46         ActionInterface::init(status);
  47
  48         reset();
  49 }
  50
  51 void ActionDrawCircle3P::trigger()
  52 {
  53         ActionInterface::trigger();
  54         preparePreview();
  55
  56         if (data.isValid())
  57         {
  58                 Circle * circle = new Circle(container, data);
  59                 circle->setLayerToActive();
  60                 circle->setPenToActive();
  61                 container->addEntity(circle);
  62
  63                 // upd. undo list:
  64                 if (document)
  65                 {
  66                         document->startUndoCycle();
  67                         document->addUndoable(circle);
  68                         document->endUndoCycle();
  69                 }
  70
  71 //              deleteSnapper();
  72 //              Vector rz = graphicView->getRelativeZero();
  73 //              graphicView->moveRelativeZero(Vector(0.0, 0.0));
  74 //              graphicView->drawEntity(circle);
  75 //              graphicView->moveRelativeZero(rz);
  76 //              drawSnapper();
  77                 graphicView->preview.clear();   // hm.
  78                 graphicView->redraw();
  79
  80                 setStatus(SetPoint1);
  81                 reset();
  82         }
  83         else
  84                 DIALOGFACTORY->requestWarningDialog(tr("Invalid circle data."));
  85 }
  86
  87 void ActionDrawCircle3P::preparePreview()
  88 {
  89         data.reset();
  90
  91         if (point1.valid && point2.valid && point3.valid)
  92         {
  93                 Circle circle(NULL, data);
  94                 bool success = circle.createFrom3P(point1, point2, point3);
  95
  96                 if (success)
  97                         data = circle.getData();
  98         }
  99 }
 100
 101 void ActionDrawCircle3P::mouseMoveEvent(QMouseEvent * e)
 102 {
 103         Vector mouse = snapPoint(e);
 104
 105         switch (getStatus())
 106         {
 107         case SetPoint1:
 108                 point1 = mouse;
 109                 break;
 110
 111         case SetPoint2:
 112                 point2 = mouse;
 113                 break;
 114
 115         case SetPoint3:
 116                 point3 = mouse;
 117                 preparePreview();
 118
 119                 if (data.isValid())
 120                 {
 121 //                      Circle * circle = new Circle(preview, data);
 122 //                      deletePreview();
 123 //                      clearPreview();
 124 //                      preview->addEntity(circle);
 125 //                      drawPreview();
 126                         graphicView->preview.clear();
 127                         graphicView->preview.addEntity(new Circle(&(graphicView->preview), data));
 128                 }
 129
 130                 break;
 131         }
 132
 133         graphicView->redraw();
 134 }
 135
 136 void ActionDrawCircle3P::mouseReleaseEvent(QMouseEvent * e)
 137 {
 138         if (e->button() == Qt::LeftButton)
 139         {
 140                 Vector ce(snapPoint(e));
 141                 coordinateEvent(&ce);
 142         }
 143         else if (e->button() == Qt::RightButton)
 144         {
 145 //              deletePreview();
 146 //              deleteSnapper();
 147                 init(getStatus() - 1);
 148                 graphicView->redraw();  // hm.
 149         }
 150 }
 151
 152 void ActionDrawCircle3P::coordinateEvent(Vector * e)
 153 {
 154         if (e == NULL)
 155                 return;
 156
 157         Vector mouse = *e;
 158
 159         switch (getStatus())
 160         {
 161         case SetPoint1:
 162                 point1 = mouse;
 163                 graphicView->moveRelativeZero(mouse);
 164                 setStatus(SetPoint2);
 165                 break;
 166
 167         case SetPoint2:
 168                 point2 = mouse;
 169                 graphicView->moveRelativeZero(mouse);
 170                 setStatus(SetPoint3);
 171                 break;
 172
 173         case SetPoint3:
 174                 point3 = mouse;
 175                 trigger();
 176                 break;
 177
 178         default:
 179                 break;
 180         }
 181 }
 182
 183 void ActionDrawCircle3P::commandEvent(CommandEvent * e)
 184 {
 185         QString c = e->getCommand().toLower();
 186
 187         if (checkCommand("help", c))
 188         {
 189                 DIALOGFACTORY->commandMessage(msgAvailableCommands()
 190                         + getAvailableCommands().join(", "));
 191                 return;
 192         }
 193 }
 194
 195 QStringList ActionDrawCircle3P::getAvailableCommands()
 196 {
 197         QStringList cmd;
 198         return cmd;
 199 }
 200
 201 void ActionDrawCircle3P::updateMouseButtonHints()
 202 {
 203         switch (getStatus())
 204         {
 205         case SetPoint1:
 206                 DIALOGFACTORY->updateMouseWidget(tr("Specify first point"), tr("Cancel"));
 207                 break;
 208
 209         case SetPoint2:
 210                 DIALOGFACTORY->updateMouseWidget(tr("Specify second point"), tr("Back"));
 211                 break;
 212
 213         case SetPoint3:
 214                 DIALOGFACTORY->updateMouseWidget(tr("Specify third point"), tr("Back"));
 215                 break;
 216
 217         default:
 218                 DIALOGFACTORY->updateMouseWidget("", "");
 219                 break;
 220         }
 221 }
 222
 223 void ActionDrawCircle3P::updateMouseCursor()
 224 {
 225         graphicView->setMouseCursor(RS2::CadCursor);
 226 }
 227
 228 void ActionDrawCircle3P::updateToolBar()
 229 {
 230         if (!isFinished())
 231                 DIALOGFACTORY->requestToolBar(RS2::ToolBarSnap);
 232         else
 233                 DIALOGFACTORY->requestToolBar(RS2::ToolBarCircles);
 234 }