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         // I think stuff like crosshairs should be done in the DrawingView, tho
  38         if (state == FIRST_POINT)
  39         {
  40                 painter->DrawPoint(p1.x, p1.y);
  41         }
  42         else
  43         {
  44                 painter->DrawLine(p1, p2);
  45         }
  46 }
  47
  48 /*virtual*/ void DrawLineAction::MouseDown(Vector point)
  49 {
  50         if (state == FIRST_POINT)
  51                 p1 = point;
  52         else
  53                 p2 = point;
  54 }
  55
  56 /*virtual*/ void DrawLineAction::MouseMoved(Vector point)
  57 {
  58         if (state == FIRST_POINT)
  59                 p1 = point;
  60         else
  61                 p2 = point;
  62 }
  63
  64 /*virtual*/ void DrawLineAction::MouseReleased(void)
  65 {
  66         if (state == FIRST_POINT)
  67         {
  68                 p2 = p1;
  69                 state = NEXT_POINT;
  70         }
  71         else if (state == NEXT_POINT)
  72         {
  73                 // We create the new object here, and then pass it off to the
  74                 // DrawingView which stuffs it into the document.
  75                 line = new Line(p1, p2);
  76                 // We don't need no stinkin' sentinels, when we have signals & slots!
  77                 emit ObjectReady(line);
  78
  79                 p1 = p2;
  80         }
  81 }