Shamusworld >> Repos - architektonas/blob - src/mirroraction.cpp

   1 // mirroraction.cpp: Action class for mirroring selected objects
   2 //
   3 // Part of the Architektonas Project
   4 // (C) 2011 Underground Software
   5 // See the README and GPLv3 files for licensing and warranty information
   6 //
   7 // JLH = James Hammons <jlhamm@acm.org>
   8 //
   9 // WHO  WHEN        WHAT
  10 // ---  ----------  ------------------------------------------------------------
  11 // JLH  08/27/2011  Created this file
  12 //
  13
  14 #include "mirroraction.h"
  15 #include "applicationwindow.h"
  16 #include "container.h"
  17 #include "drawingview.h"
  18 #include "line.h"
  19 #include "mathconstants.h"
  20 #include "painter.h"
  21 //#include "vector.h"
  22
  23
  24 //#define FIRST_POINT 0
  25 //#define NEXT_POINT 1
  26 enum { FIRST_POINT, NEXT_POINT };
  27
  28
  29 MirrorAction::MirrorAction(): state(FIRST_POINT), line(NULL),
  30         shiftWasPressedOnNextPoint(false), mirror(new Container(Vector()))
  31 {
  32 }
  33
  34
  35 MirrorAction::~MirrorAction()
  36 {
  37 }
  38
  39
  40 /*virtual*/ void MirrorAction::Draw(Painter * painter)
  41 {
  42         painter->SetPen(QPen(Qt::red, 2.0, Qt::DotLine));
  43
  44         // I think stuff like crosshairs should be done in the DrawingView, tho
  45         // (and it's done there now...)
  46         if (state == FIRST_POINT)
  47         {
  48                 painter->DrawHandle(p1);
  49         }
  50         else
  51         {
  52                 painter->DrawLine(p1, p2);
  53                 painter->DrawHandle(p2);
  54
  55                 double absAngle = (Vector(p2 - p1).Angle()) * RADIANS_TO_DEGREES;
  56 //              double absLength = Vector(position - endpoint).Magnitude();
  57
  58                 QString text = QChar(0x2221) + QObject::tr(": %1");
  59                 text = text.arg(absAngle);
  60 //              QString text = tr("Length: %1 in.");
  61 //              text = text.arg(Vector::Magnitude(p1, p2));
  62                 painter->DrawInformativeText(text);
  63
  64                 mirror->Draw(painter);
  65         }
  66 }
  67
  68
  69 /*virtual*/ void MirrorAction::MouseDown(Vector point)
  70 {
  71         // Clear our override...
  72         shiftWasPressedOnNextPoint = false;
  73
  74         if (state == FIRST_POINT)
  75                 p1 = point;
  76         else
  77                 p2 = point;
  78 }
  79
  80
  81 /*virtual*/ void MirrorAction::MouseMoved(Vector point)
  82 {
  83         if (state == FIRST_POINT)
  84                 p1 = point;
  85         else
  86         {
  87                 p2 = point;
  88
  89                 mirror->Clear();
  90                 int itemsSelected = ApplicationWindow::drawing->document.ItemsSelected();
  91
  92                 if (itemsSelected == 0)
  93                         return;
  94
  95                 for(int i=0; i<itemsSelected; i++)
  96                 {
  97                         Object * object = ApplicationWindow::drawing->document.SelectedItem(i);
  98                         Object * mirrored = object->Mirror(p1, p2);
  99                         mirror->Add(mirrored);
 100                 }
 101         }
 102 }
 103
 104
 105 /*virtual*/ void MirrorAction::MouseReleased(void)
 106 {
 107         if (state == FIRST_POINT)
 108         {
 109                 p2 = p1;
 110                 state = NEXT_POINT;
 111         }
 112         else if (state == NEXT_POINT)
 113         {
 114                 // We create the new object here, and then pass it off to the
 115                 // DrawingView which stuffs it into the document.
 116 //              line = new Line(p1, p2);
 117                 // We don't need no stinkin' sentinels, when we have signals & slots!
 118 //              emit ObjectReady(line);
 119
 120                 p1 = p2;
 121                 state = NEXT_POINT;
 122         }
 123 }
 124
 125
 126 /*virtual*/ bool MirrorAction::KeyDown(int key)
 127 {
 128         if ((key == Qt::Key_Shift) && (state == NEXT_POINT))
 129         {
 130                 shiftWasPressedOnNextPoint = true;
 131                 p1Save = p1;
 132                 p1 = p2;
 133                 state = FIRST_POINT;
 134                 return true;
 135         }
 136
 137         return false;
 138 }
 139
 140
 141 /*virtual*/ bool MirrorAction::KeyReleased(int key)
 142 {
 143         if ((key == Qt::Key_Shift) && shiftWasPressedOnNextPoint)
 144         {
 145                 shiftWasPressedOnNextPoint = false;
 146                 p2 = p1;
 147                 p1 = p1Save;
 148                 state = NEXT_POINT;
 149                 return true;
 150         }
 151
 152         return false;
 153 }
 154