Shamusworld >> Repos - architektonas/blob - src/base/rs_preview.cpp

   1 // rs_preview.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  05/21/2010  Added this text. :-)
  13 //
  14
  15 #include "rs_preview.h"
  16
  17 #include "rs_entitycontainer.h"
  18 #include "rs_graphicview.h"
  19 #include "rs_information.h"
  20 #include "settings.h"
  21
  22 /**
  23  * Constructor.
  24  */
  25 RS_Preview::RS_Preview(RS_EntityContainer * parent): RS_EntityContainer(parent)
  26 {
  27         settings.beginGroup("Appearance");
  28         maxEntities = settings.value("MaxPreview", 100).toInt();
  29         settings.endGroup();
  30 }
  31
  32 /**
  33  * Destructor.
  34  */
  35 RS_Preview::~RS_Preview()
  36 {
  37 }
  38
  39 /**
  40  * Adds an entity to this preview and removes any attributes / layer
  41  * connectsions before that.
  42  */
  43 void RS_Preview::addEntity(RS_Entity * entity)
  44 {
  45         if (entity == NULL || entity->isUndone())
  46                 return;
  47
  48         // only border preview for complex entities:
  49         //if ((entity->count() > maxEntities-count()) &&
  50
  51         bool addBorder = false;
  52
  53         if (entity->rtti() == RS2::EntityImage || entity->rtti() == RS2::EntityHatch
  54                 || entity->rtti() == RS2::EntityInsert)
  55         {
  56                 addBorder = true;
  57         }
  58         else
  59         {
  60                 if (entity->isContainer() && entity->rtti() != RS2::EntitySpline)
  61                 {
  62                         if (entity->countDeep() > maxEntities-countDeep())
  63                                 addBorder = true;
  64                 }
  65         }
  66
  67         if (addBorder)
  68         {
  69                 Vector min = entity->getMin();
  70                 Vector max = entity->getMax();
  71
  72                 RS_Line * l1 = new RS_Line(this, RS_LineData(Vector(min.x, min.y), Vector(max.x, min.y)));
  73                 RS_Line * l2 = new RS_Line(this, RS_LineData(Vector(max.x, min.y), Vector(max.x, max.y)));
  74                 RS_Line * l3 = new RS_Line(this, RS_LineData(Vector(max.x, max.y), Vector(min.x, max.y)));
  75                 RS_Line * l4 = new RS_Line(this, RS_LineData(Vector(min.x, max.y), Vector(min.x, min.y)));
  76
  77                 RS_EntityContainer::addEntity(l1);
  78                 RS_EntityContainer::addEntity(l2);
  79                 RS_EntityContainer::addEntity(l3);
  80                 RS_EntityContainer::addEntity(l4);
  81
  82                 delete entity;
  83                 entity = NULL;
  84         }
  85         else
  86         {
  87                 entity->setLayer(NULL);
  88                 entity->setSelected(false);
  89                 entity->reparent(this);
  90                 entity->setPen(RS_Pen(RS_Color(255, 255, 255), RS2::Width00, RS2::SolidLine));
  91                 RS_EntityContainer::addEntity(entity);
  92         }
  93 }
  94
  95 /**
  96 * Clones the given entity and adds the clone to the preview.
  97 */
  98 void RS_Preview::addCloneOf(RS_Entity* entity)
  99 {
 100         if (entity == NULL)
 101                 return;
 102
 103         RS_Entity * clone = entity->clone();
 104         addEntity(clone);
 105 }
 106
 107 /**
 108 * Adds all entities from 'container' to the preview (unselected).
 109 */
 110 void RS_Preview::addAllFrom(RS_EntityContainer & container)
 111 {
 112         int c = 0;
 113
 114         for(RS_Entity * e=container.firstEntity(); e!=NULL; e=container.nextEntity())
 115         {
 116                 if (c < maxEntities)
 117                 {
 118                         RS_Entity * clone = e->clone();
 119                         clone->setSelected(false);
 120                         clone->reparent(this);
 121
 122                         c += clone->countDeep();
 123                         addEntity(clone);
 124                         // clone might be NULL after this point
 125                 }
 126         }
 127 }
 128
 129 /**
 130 * Adds all selected entities from 'container' to the preview (unselected).
 131 */
 132 void RS_Preview::addSelectionFrom(RS_EntityContainer & container)
 133 {
 134         int c = 0;
 135
 136         for(RS_Entity * e=container.firstEntity(); e!=NULL; e=container.nextEntity())
 137         {
 138                 if (e->isSelected() && c < maxEntities)
 139                 {
 140                         RS_Entity * clone = e->clone();
 141                         clone->setSelected(false);
 142                         clone->reparent(this);
 143
 144                         c += clone->countDeep();
 145                         addEntity(clone);
 146                         // clone might be NULL after this point
 147                 }
 148         }
 149 }
 150
 151 /**
 152 * Adds all entities in the given range and those which have endpoints
 153 * in the given range to the preview.
 154 */
 155 void RS_Preview::addStretchablesFrom(RS_EntityContainer & container, const Vector & v1,
 156         const Vector & v2)
 157 {
 158         int c = 0;
 159
 160         for(RS_Entity * e=container.firstEntity(); e!=NULL; e=container.nextEntity())
 161         {
 162                 if (e->isVisible() && e->rtti() != RS2::EntityHatch && (e->isInWindow(v1, v2)
 163                         || e->hasEndpointsWithinWindow(v1, v2)) && c < maxEntities)
 164                 {
 165                         RS_Entity * clone = e->clone();
 166                         //clone->setSelected(false);
 167                         clone->reparent(this);
 168
 169                         c += clone->countDeep();
 170                         addEntity(clone);
 171                         // clone might be NULL after this point
 172                 }
 173         }
 174 }