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