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