1 // drawcircleaction.cpp: Action class for drawing circles
3 // Part of the Architektonas Project
4 // (C) 2012 Underground Software
5 // See the README and GPLv3 files for licensing and warranty information
7 // JLH = James Hammons <jlhamm@acm.org>
10 // --- ---------- ------------------------------------------------------------
11 // JLH 02/01/2012 Created this file
14 #include "drawcircleaction.h"
20 enum { FIRST_POINT, NEXT_POINT };
23 DrawCircleAction::DrawCircleAction(): state(0), circle(NULL)
27 DrawCircleAction::~DrawCircleAction()
32 /*virtual*/ void DrawCircleAction::Draw(Painter * painter)
34 painter->SetPen(QPen(Qt::red, 2.0, Qt::DotLine));
36 // I think stuff like crosshairs should be done in the DrawingView, tho
37 if (state == FIRST_POINT)
39 painter->DrawHandle(p1);
43 painter->DrawHandle(p1);
44 double radius = Vector::Magnitude(p1, p2);
45 painter->DrawEllipse(p1, radius, radius);
49 /*virtual*/ void DrawCircleAction::MouseDown(Vector point)
51 if (state == FIRST_POINT)
57 /*virtual*/ void DrawCircleAction::MouseMoved(Vector point)
59 if (state == FIRST_POINT)
65 /*virtual*/ void DrawCircleAction::MouseReleased(void)
67 if (state == FIRST_POINT)
72 else if (state == NEXT_POINT)
74 // We create the new object here, and then pass it off to the
75 // DrawingView which stuffs it into the document.
76 circle = new Circle(p1, Vector::Magnitude(p1, p2));
77 // We don't need no stinkin' sentinels, when we have signals & slots!
78 emit ObjectReady(circle);
86 /*virtual*/ void DrawCircleAction::KeyDown(int /*key*/)
91 /*virtual*/ void DrawCircleAction::KeyReleased(int /*key*/)