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

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