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