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

   1 // drawlineaction.cpp: Action class for drawing lines
   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 L. Hammons <jlhamm@acm.org>
   8 //
   9 // WHO  WHEN        WHAT
  10 // ---  ----------  ------------------------------------------------------------
  11 // JLH  10/04/2011  Created this file
  12 // JLH  11/07/2011  Made it so this class actually does something ;-)
  13 //
  14
  15 #include "drawlineaction.h"
  16 #include "line.h"
  17 #include "painter.h"
  18 //#include "vector.h"
  19
  20
  21 #define FIRST_POINT 0
  22 #define NEXT_POINT 1
  23
  24
  25 DrawLineAction::DrawLineAction(): state(0), line(NULL)
  26 {
  27 }
  28
  29 DrawLineAction::~DrawLineAction()
  30 {
  31 }
  32
  33
  34 /*virtual*/ void DrawLineAction::Draw(Painter * painter)
  35 {
  36         // Need to fix pen colors, etc...
  37         if (state == FIRST_POINT)
  38         {
  39                 painter->DrawPoint(p1.x, p1.y);
  40         }
  41         else
  42         {
  43                 painter->DrawLine(p1, p2);
  44         }
  45 }
  46
  47 /*virtual*/ void DrawLineAction::MouseDown(Vector point)
  48 {
  49         if (state == FIRST_POINT)
  50                 p1 = point;
  51         else
  52                 p2 = point;
  53 }
  54
  55 /*virtual*/ void DrawLineAction::MouseMoved(Vector point)
  56 {
  57         if (state == FIRST_POINT)
  58                 p1 = point;
  59         else
  60                 p2 = point;
  61 }
  62
  63 /*virtual*/ void DrawLineAction::MouseReleased(void)
  64 {
  65         if (state == FIRST_POINT)
  66                 state = NEXT_POINT;
  67         else if (state == NEXT_POINT)
  68         {
  69                 // We create the new object here, and then pass it off to the document.
  70                 line = new Line(p1, p2);
  71                 // We don't need no stinkin' sentinels, when we have signals & slots!
  72                 emit ObjectReady(line);
  73
  74                 p1 = p2;
  75         }
  76 }