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 "line.h"
  17 #include "mathconstants.h"
  18 #include "painter.h"
  19 //#include "vector.h"
  20
  21
  22 //#define FIRST_POINT 0
  23 //#define NEXT_POINT 1
  24 enum { FIRST_POINT, NEXT_POINT };
  25
  26
  27 MirrorAction::MirrorAction(): state(FIRST_POINT), line(NULL),
  28         shiftWasPressedOnNextPoint(false)
  29 {
  30 }
  31
  32
  33 MirrorAction::~MirrorAction()
  34 {
  35 }
  36
  37
  38 /*virtual*/ void MirrorAction::Draw(Painter * painter)
  39 {
  40         painter->SetPen(QPen(Qt::red, 2.0, Qt::DotLine));
  41
  42         // I think stuff like crosshairs should be done in the DrawingView, tho
  43         // (and it's done there now...)
  44         if (state == FIRST_POINT)
  45         {
  46                 painter->DrawHandle(p1);
  47         }
  48         else
  49         {
  50                 painter->DrawLine(p1, p2);
  51                 painter->DrawHandle(p2);
  52
  53                 double absAngle = (Vector(p2 - p1).Angle()) * RADIANS_TO_DEGREES;
  54 //              double absLength = Vector(position - endpoint).Magnitude();
  55
  56                 QString text = QChar(0x2221) + QObject::tr(": %1");
  57                 text = text.arg(absAngle);
  58 //              QString text = tr("Length: %1 in.");
  59 //              text = text.arg(Vector::Magnitude(p1, p2));
  60                 painter->DrawInformativeText(text);
  61         }
  62 }
  63
  64
  65 /*virtual*/ void MirrorAction::MouseDown(Vector point)
  66 {
  67         // Clear our override...
  68         shiftWasPressedOnNextPoint = false;
  69
  70         if (state == FIRST_POINT)
  71                 p1 = point;
  72         else
  73                 p2 = point;
  74 }
  75
  76
  77 /*virtual*/ void MirrorAction::MouseMoved(Vector point)
  78 {
  79         if (state == FIRST_POINT)
  80                 p1 = point;
  81         else
  82         {
  83                 p2 = point;
  84         }
  85 }
  86
  87
  88 /*virtual*/ void MirrorAction::MouseReleased(void)
  89 {
  90         if (state == FIRST_POINT)
  91         {
  92                 p2 = p1;
  93                 state = NEXT_POINT;
  94         }
  95         else if (state == NEXT_POINT)
  96         {
  97                 // We create the new object here, and then pass it off to the
  98                 // DrawingView which stuffs it into the document.
  99 //              line = new Line(p1, p2);
 100                 // We don't need no stinkin' sentinels, when we have signals & slots!
 101 //              emit ObjectReady(line);
 102
 103                 p1 = p2;
 104                 state = NEXT_POINT;
 105         }
 106 }
 107
 108
 109 /*virtual*/ bool MirrorAction::KeyDown(int key)
 110 {
 111         if ((key == Qt::Key_Shift) && (state == NEXT_POINT))
 112         {
 113                 shiftWasPressedOnNextPoint = true;
 114                 p1Save = p1;
 115                 p1 = p2;
 116                 state = FIRST_POINT;
 117                 return true;
 118         }
 119
 120         return false;
 121 }
 122
 123
 124 /*virtual*/ bool MirrorAction::KeyReleased(int key)
 125 {
 126         if ((key == Qt::Key_Shift) && shiftWasPressedOnNextPoint)
 127         {
 128                 shiftWasPressedOnNextPoint = false;
 129                 p2 = p1;
 130                 p1 = p1Save;
 131                 state = NEXT_POINT;
 132                 return true;
 133         }
 134
 135         return false;
 136 }
 137