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

   1 // rs_actionmodifydeletefree.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 "rs_actionmodifydeletefree.h"
  16
  17 #include "rs_dialogfactory.h"
  18 #include "graphicview.h"
  19 #include "rs_modification.h"
  20 #include "rs_polyline.h"
  21 #include "rs_undo.h"
  22
  23 RS_ActionModifyDeleteFree::RS_ActionModifyDeleteFree(
  24         RS_EntityContainer & container, GraphicView & graphicView):
  25         RS_ActionInterface("Delete Entities Freehand",
  26                 container, graphicView)
  27 {
  28 }
  29
  30 RS_ActionModifyDeleteFree::~RS_ActionModifyDeleteFree()
  31 {
  32 }
  33
  34 void RS_ActionModifyDeleteFree::init(int status)
  35 {
  36         RS_ActionInterface::init(status);
  37         polyline = NULL;
  38         e1 = e2 = NULL;
  39         v1 = v2 = Vector(false);
  40         setSnapMode(RS2::SnapOnEntity);
  41 }
  42
  43 void RS_ActionModifyDeleteFree::trigger()
  44 {
  45         if (e1 != NULL && e2 != NULL)
  46         {
  47                 RS_EntityContainer * parent = e2->getParent();
  48
  49                 if (parent != NULL)
  50                 {
  51                         if (parent->rtti() == RS2::EntityPolyline)
  52                         {
  53                                 if (parent->getId() == polyline->getId())
  54                                 {
  55                                         // deletes whole polyline on screen:
  56                                         graphicView->deleteEntity((RS_Entity *)polyline);
  57
  58                                         // splits up the polyline in the container:
  59                                         RS_Polyline * pl1;
  60                                         RS_Polyline * pl2;
  61                                         RS_Modification m(*container);
  62                                         m.splitPolyline(*polyline,
  63                                                 *e1, v1,
  64                                                 *e2, v2,
  65                                                 &pl1, &pl2);
  66
  67                                         if (document)
  68                                         {
  69                                                 document->startUndoCycle();
  70                                                 document->addUndoable(polyline);
  71                                                 document->addUndoable(pl1);
  72                                                 document->addUndoable(pl2);
  73                                                 document->endUndoCycle();
  74                                         }
  75
  76                                         // draws the new polylines on the screen:
  77                                         graphicView->drawEntity((RS_Entity *)pl1);
  78                                         graphicView->drawEntity((RS_Entity *)pl2);
  79
  80                                         init();
  81
  82                                         RS_DIALOGFACTORY->updateSelectionWidget(
  83                                                 container->countSelected());
  84                                 }
  85                                 else
  86                                         RS_DIALOGFACTORY->commandMessage(tr("Entities not in the same polyline."));
  87                         }
  88                         else
  89                                 RS_DIALOGFACTORY->commandMessage(tr("Parent of second entity is not a polyline"));
  90                 }
  91                 else
  92                         RS_DIALOGFACTORY->commandMessage(tr("Parent of second entity is NULL"));
  93         }
  94         else
  95                 RS_DIALOGFACTORY->commandMessage(tr("One of the chosen entities is NULL"));
  96 }
  97
  98 void RS_ActionModifyDeleteFree::mouseReleaseEvent(QMouseEvent * e)
  99 {
 100         if (e->button() == Qt::RightButton)
 101                 init(getStatus() - 1);
 102         else
 103         {
 104                 switch (getStatus())
 105                 {
 106                 case 0:
 107                         v1 = snapPoint(e);
 108                         e1 = getKeyEntity();
 109
 110                         if (e1 != NULL)
 111                         {
 112                                 RS_EntityContainer * parent = e1->getParent();
 113
 114                                 if (parent != NULL)
 115                                 {
 116                                         if (parent->rtti() == RS2::EntityPolyline)
 117                                         {
 118                                                 polyline = (RS_Polyline *)parent;
 119                                                 setStatus(1);
 120                                         }
 121                                         else
 122                                                 RS_DIALOGFACTORY->commandMessage(
 123                                                         tr("Parent of first entity is not a polyline"));
 124                                 }
 125                                 else
 126                                         RS_DIALOGFACTORY->commandMessage(
 127                                                 tr("Parent of first entity is NULL"));
 128                         }
 129                         else
 130                                 RS_DIALOGFACTORY->commandMessage(
 131                                         tr("First entity is NULL"));
 132
 133                         break;
 134
 135                 case 1:
 136                         v2 = snapPoint(e);
 137                         e2 = getKeyEntity();
 138
 139                         if (e2 != NULL)
 140                                 trigger();
 141                         else
 142                                 RS_DIALOGFACTORY->commandMessage(tr("Second entity is NULL"));
 143
 144                         break;
 145                 }
 146         }
 147 }
 148
 149 void RS_ActionModifyDeleteFree::updateMouseButtonHints()
 150 {
 151         switch (getStatus())
 152         {
 153         case 0:
 154                 RS_DIALOGFACTORY->updateMouseWidget(tr("Specify first break point "
 155                                 "on a polyline"), tr("Cancel"));
 156                 break;
 157
 158         case 1:
 159                 RS_DIALOGFACTORY->updateMouseWidget(tr("Specify second break point "
 160                                 "on the same polyline"),
 161                         tr("Back"));
 162                 break;
 163
 164         default:
 165                 RS_DIALOGFACTORY->updateMouseWidget("", "");
 166                 break;
 167         }
 168 }
 169