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

   1 // rs_actionzoomwindow.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  06/05/2010  Added this text. :-)
  13 //
  14
  15 #include "rs_actionzoomwindow.h"
  16
  17 #include "rs_dialogfactory.h"
  18 #include "graphicview.h"
  19 #include "rs_preview.h"
  20
  21 /**
  22  * Default constructor.
  23  *
  24  * @param keepAspectRatio Keep the aspect ratio. true: the factors
  25  *          in x and y will stay the same. false Exactly the chosen
  26  *          area will be fit to the viewport.
  27  */
  28 RS_ActionZoomWindow::RS_ActionZoomWindow(RS_EntityContainer & container,
  29         GraphicView & graphicView, bool keepAspectRatio):
  30         RS_PreviewActionInterface("Zoom Window", container, graphicView)
  31 {
  32         this->keepAspectRatio = keepAspectRatio;
  33 }
  34
  35 RS_ActionZoomWindow::~RS_ActionZoomWindow()
  36 {
  37 }
  38
  39 void RS_ActionZoomWindow::init(int status)
  40 {
  41         RS_DEBUG->print("RS_ActionZoomWindow::init()");
  42
  43         RS_PreviewActionInterface::init(status);
  44         v1 = v2 = Vector(false);
  45         snapMode = RS2::SnapFree;
  46         snapRes = RS2::RestrictNothing;
  47 }
  48
  49 void RS_ActionZoomWindow::trigger()
  50 {
  51         RS_DEBUG->print("RS_ActionZoomWindow::trigger()");
  52
  53         RS_PreviewActionInterface::trigger();
  54
  55         if (v1.valid && v2.valid)
  56         {
  57                 deletePreview();
  58                 deleteSnapper();
  59
  60                 if (graphicView->toGuiDX(v1.distanceTo(v2)) > 5)
  61                 {
  62                         graphicView->zoomWindow(v1, v2, keepAspectRatio);
  63                         init();
  64                 }
  65         }
  66 }
  67
  68 void RS_ActionZoomWindow::mouseMoveEvent(QMouseEvent * e)
  69 {
  70         if (getStatus() == 1 && v1.valid)
  71         {
  72                 v2 = snapPoint(e);
  73                 deletePreview();
  74                 clearPreview();
  75                 preview->addEntity(new RS_Line(preview,
  76                                 RS_LineData(Vector(v1.x, v1.y), Vector(v2.x, v1.y))));
  77                 preview->addEntity(new RS_Line(preview,
  78                                 RS_LineData(Vector(v2.x, v1.y), Vector(v2.x, v2.y))));
  79                 preview->addEntity(new RS_Line(preview,
  80                                 RS_LineData(Vector(v2.x, v2.y), Vector(v1.x, v2.y))));
  81                 preview->addEntity(new RS_Line(preview,
  82                                 RS_LineData(Vector(v1.x, v2.y), Vector(v1.x, v1.y))));
  83                 drawPreview();
  84         }
  85 }
  86
  87 void RS_ActionZoomWindow::mousePressEvent(QMouseEvent * e)
  88 {
  89         if (e->button() == Qt::LeftButton)
  90         {
  91                 switch (getStatus())
  92                 {
  93                 case 0:
  94                         v1 = snapPoint(e);
  95                         setStatus(1);
  96                         break;
  97
  98                 default:
  99                         break;
 100                 }
 101         }
 102
 103         RS_DEBUG->print("RS_ActionZoomWindow::mousePressEvent(): %f %f", v1.x, v1.y);
 104 }
 105
 106 void RS_ActionZoomWindow::mouseReleaseEvent(QMouseEvent * e)
 107 {
 108         RS_DEBUG->print("RS_ActionZoomWindow::mouseReleaseEvent()");
 109
 110         if (e->button() == Qt::RightButton)
 111         {
 112                 if (getStatus() == 1)
 113                         deletePreview();
 114
 115                 init(getStatus() - 1);
 116         }
 117         else if (e->button() == Qt::LeftButton)
 118                 if (getStatus() == 1)
 119                 {
 120                         v2 = snapPoint(e);
 121                         trigger();
 122                 }
 123 }
 124
 125 void RS_ActionZoomWindow::updateMouseButtonHints()
 126 {
 127         RS_DEBUG->print("RS_ActionZoomWindow::updateMouseButtonHints()");
 128
 129         switch (getStatus())
 130         {
 131         case 0:
 132                 RS_DIALOGFACTORY->updateMouseWidget(tr("Specify first edge"), tr("Cancel"));
 133                 break;
 134
 135         case 1:
 136                 RS_DIALOGFACTORY->updateMouseWidget(tr("Specify second edge"), tr("Back"));
 137                 break;
 138
 139         default:
 140                 RS_DIALOGFACTORY->updateMouseWidget("", "");
 141                 break;
 142         }
 143 }
 144
 145 void RS_ActionZoomWindow::updateMouseCursor()
 146 {
 147         graphicView->setMouseCursor(RS2::MagnifierCursor);
 148 }
 149
 150 // EOF