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

   1 // drawdimensionaction.cpp: Action class for drawing dimensions
   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  03/15/2013  Created this file
  12 //
  13
  14 #include "drawdimensionaction.h"
  15 #include "applicationwindow.h"
  16 #include "dimension.h"
  17 #include "drawingview.h"
  18 #include "line.h"
  19 #include "painter.h"
  20
  21
  22 enum { FIRST_POINT, NEXT_POINT, NO_POINT };
  23
  24
  25 DrawDimensionAction::DrawDimensionAction(): state(0), dimension(NULL)
  26 {
  27 }
  28
  29
  30 DrawDimensionAction::~DrawDimensionAction()
  31 {
  32 }
  33
  34
  35 /*virtual*/ void DrawDimensionAction::Draw(Painter * painter)
  36 {
  37         painter->SetPen(QPen(Qt::red, 2.0, Qt::DotLine));
  38
  39         if (state == FIRST_POINT)
  40         {
  41                 painter->DrawHandle(p1);
  42         }
  43         else if (state == NEXT_POINT)
  44         {
  45                 painter->DrawLine(p1, p2);
  46                 painter->DrawHandle(p2);
  47         }
  48 }
  49
  50
  51 /*virtual*/ void DrawDimensionAction::MouseDown(Vector point)
  52 {
  53         obj = ApplicationWindow::drawing->document.lastObjectClicked;
  54
  55         if (obj)
  56         {
  57                 if (obj->type == OTLine)
  58                 {
  59                         // Make sure we didn't hit an endpoint...
  60                         if (!(((Line *) obj)->hitPoint1 || ((Line *)obj)->hitPoint2))
  61                         {
  62                                 state = NO_POINT;
  63                                 return;
  64                         }
  65                 }
  66         }
  67
  68         if (state == FIRST_POINT)
  69                 p1 = point;
  70         else
  71                 p2 = point;
  72 }
  73
  74
  75 /*virtual*/ void DrawDimensionAction::MouseMoved(Vector point)
  76 {
  77         if (state == FIRST_POINT)
  78                 p1 = point;
  79         else
  80                 p2 = point;
  81 }
  82
  83
  84 /*virtual*/ void DrawDimensionAction::MouseReleased(void)
  85 {
  86         if (state == NO_POINT)
  87         {
  88                 HandleAddDimensionToObject();//ApplicationWindow::drawing->document.lastObjectClicked);
  89                 state = FIRST_POINT;
  90         }
  91         else if (state == FIRST_POINT)
  92         {
  93                 p2 = p1;
  94                 state = NEXT_POINT;
  95         }
  96         else if (state == NEXT_POINT)
  97         {
  98                 // We create the new object here, and then pass it off to the
  99                 // DrawingView which stuffs it into the document.
 100                 dimension = new Dimension(p1, p2);
 101                 // We don't need no stinkin' sentinels, when we have signals & slots!
 102                 emit ObjectReady(dimension);
 103
 104                 state = FIRST_POINT;
 105         }
 106 }
 107
 108
 109 /*virtual*/ void DrawDimensionAction::KeyDown(int /*key*/)
 110 {
 111 }
 112
 113
 114 /*virtual*/ void DrawDimensionAction::KeyReleased(int /*key*/)
 115 {
 116 }
 117
 118
 119 void DrawDimensionAction::HandleAddDimensionToObject(void)//Object * obj)
 120 {
 121 //printf("Adding dimension to object...\n");
 122         if (obj->type == OTLine)
 123         {
 124                 Object * existing = ((Line *)obj)->FindAttachedDimension();
 125
 126                 if (existing)
 127                 {
 128                         ((Dimension *)existing)->FlipSides();
 129                 }
 130 //printf("--> type == LINE\n");
 131                 // Should also check here to see if it hit the line proper or just hit
 132                 // an endpoint...
 133                 else
 134                 {
 135                         dimension = new Dimension(p1, p2);
 136                         ((Line *)obj)->SetDimensionOnLine(dimension);
 137                         emit ObjectReady(dimension);
 138                 }
 139         }
 140 }
 141