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Исходник как повернуть изображение на любой угол.. файл: TurnImView.h | Код |
// TurnImView.h : interface of the CTurnImView class
//
/////////////////////////////////////////////////////////////////////////////
#if !defined(AFX_TURNIMVIEW_H__DDA2FBD8_0C64_4E02_B12D_977665250476__INCLUDED_)
#define AFX_TURNIMVIEW_H__DDA2FBD8_0C64_4E02_B12D_977665250476__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
class CTurnImView : public CView
{
protected: // create from serialization only
CTurnImView();
DECLARE_DYNCREATE(CTurnImView)
// Attributes
public:
CTurnImDoc* GetDocument();
float m_iangel;
bool m_draw;
void Formating(CDC *pDC);
void LoadFile(CDC *pDC);
void SinCos(double AngleRad, double &ASin, double &ACos);
// Operations
public:
// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CTurnImView)
public:
virtual void OnDraw(CDC* pDC); // overridden to draw this view
virtual BOOL PreCreateWindow(CREATESTRUCT& cs);
protected:
virtual BOOL OnPreparePrinting(CPrintInfo* pInfo);
virtual void OnBeginPrinting(CDC* pDC, CPrintInfo* pInfo);
virtual void OnEndPrinting(CDC* pDC, CPrintInfo* pInfo);
virtual void DoDataExchange(CDataExchange* pDX);
//}}AFX_VIRTUAL
// Implementation
public:
virtual ~CTurnImView();
#ifdef _DEBUG
virtual void AssertValid() const;
virtual void Dump(CDumpContext& dc) const;
#endif
protected:
HBITMAP m_hbitmap;
BITMAP m_bm;
// Generated message map functions
protected:
//{{AFX_MSG(CTurnImView)
afx_msg void OnViewSetangle();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
#ifndef _DEBUG // debug version in TurnImView.cpp
inline CTurnImDoc* CTurnImView::GetDocument()
{ return (CTurnImDoc*)m_pDocument; }
#endif
/////////////////////////////////////////////////////////////////////////////
//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
#endif // !defined(AFX_TURNIMVIEW_H__DDA2FBD8_0C64_4E02_B12D_977665250476__INCLUDED_)
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файл: TurnImView.cpp | Код |
// TurnImView.cpp : implementation of the CTurnImView class
//
#include "stdafx.h"
#include "TurnIm.h"
#include "TurnImDoc.h"
#include "TurnImView.h"
#include "math.h"
#include "SetAngle.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CTurnImView
IMPLEMENT_DYNCREATE(CTurnImView, CView)
BEGIN_MESSAGE_MAP(CTurnImView, CView)
//{{AFX_MSG_MAP(CTurnImView)
ON_COMMAND(ID_VIEW_SETANGLE, OnViewSetangle)
//}}AFX_MSG_MAP
// Standard printing commands
ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CTurnImView construction/destruction
CTurnImView::CTurnImView()
{
// TODO: add construction code here
m_iangel = 0;
m_draw = false; //ïåðåðèñîâêà
}
CTurnImView::~CTurnImView()
{
}
BOOL CTurnImView::PreCreateWindow(CREATESTRUCT& cs)
{
// TODO: Modify the Window class or styles here by modifying
// the CREATESTRUCT cs
return CView::PreCreateWindow(cs);
}
/////////////////////////////////////////////////////////////////////////////
// CTurnImView drawing
void CTurnImView::OnDraw(CDC* pDC)
{
CTurnImDoc* pDoc = GetDocument();
ASSERT_VALID(pDoc);
// TODO: add draw code for native data here
if(GetDocument()->m_bloadfile){
LoadFile(pDC);
GetDocument()->m_bloadfile = false;
}
if(m_draw){
Formating(pDC);
}
//pDC->DrawState(CPoint(0,0), CSize(m_bm.bmWidth, m_bm.bmHeight), m_hbitmap, DST_BITMAP);
}
/////////////////////////////////////////////////////////////////////////////
// CTurnImView printing
BOOL CTurnImView::OnPreparePrinting(CPrintInfo* pInfo)
{
// default preparation
return DoPreparePrinting(pInfo);
}
void CTurnImView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add extra initialization before printing
}
void CTurnImView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
// TODO: add cleanup after printing
}
/////////////////////////////////////////////////////////////////////////////
// CTurnImView diagnostics
#ifdef _DEBUG
void CTurnImView::AssertValid() const
{
CView::AssertValid();
}
void CTurnImView::Dump(CDumpContext& dc) const
{
CView::Dump(dc);
}
CTurnImDoc* CTurnImView::GetDocument() // non-debug version is inline
{
ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CTurnImDoc)));
return (CTurnImDoc*)m_pDocument;
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CTurnImView message handlers
void CTurnImView::DoDataExchange(CDataExchange* pDX)
{
CView::DoDataExchange(pDX);
}
//çàãðóçêà èç êàðòèíêè ôàéëà
void CTurnImView::LoadFile(CDC* pDC)
{
m_hbitmap = GetDocument()->m_hBitmap;
GetObject(m_hbitmap, sizeof(BITMAP), (LPVOID)&m_bm);
//Ðèñóåì ôàéë
CDC dc;
dc.CreateCompatibleDC(pDC);
dc.SelectObject(m_hbitmap);
//Êîïèðóåì åãî
::BitBlt(pDC->m_hDC, 0, 0, m_bm.bmWidth, m_bm.bmHeight, dc.m_hDC, 0, 0, SRCCOPY);
dc.DeleteDC();
}
void CTurnImView::OnViewSetangle()
{
//âûñòàâëÿåì óãîë
m_draw = true;
CSetAngle Angle;
if(Angle.DoModal() == IDOK){
m_iangel = Angle.GetAngle();
}
InvalidateRect(0, 0);
}
// Àëãîðèòì ïîâîðîòà èçîáðàæåíèÿ. Ïóñòü:
//
// O - ýòî öåíòð ïîâîðîòà,
// M - íåêàÿ òî÷êà èñõîäíîãî èçîáðàæåíèÿ.
// Äëÿ êàæäîé òî÷êè M íóæíî íàéòè óãîë alpha ìåæäó îòðåçêîì OM è
// ãîðèçîíòàëüþ è äëèíó r îòðåçêà OM. Òåïåðü, ÷òîáû ïîâåðíóòü èçîáðàæåíèå
// íà óãîë beta, íóæíî êàæäîé òî÷êå M ïðèñâîèòü öâåò òî÷êè èñõîäíîãî
// èçîáðàæåíèÿ ñ êîîðäèíàòàìè x,y, ãäå
//
// x = xo + r * cos(alpha + beta)
// y = yo + r * sin(alpha + beta)
//
// xo,yo - öåíòð ïîâîðîòà,
// r - äëèíà îòðåçêà OM
// Âàæíî èìåííî êàæäîé òî÷êå íîâîãî èçîáðàæåíèÿ ñîïîñòàâëÿòü òî÷êó ñòàðîãî
// èçîáðàæåíèÿ, à íå íàîáîðîò, òàê êàê èíà÷å íåêîòîðûå òî÷êè íîâîãî
// èçîáðàæåíèÿ îñòàíóòñÿ íå çàêðàøåííûìè.
void CTurnImView::Formating(CDC *pDC){
CBitmap *bm, *bm1;
CDC dc, dc1;
dc.CreateCompatibleDC(pDC);
dc1.CreateCompatibleDC(pDC);
int x, y;
float r;
int xo, yo;
double s, c;
bm = new CBitmap;
bm->Attach(m_hbitmap);
dc.SelectObject(bm);
xo = m_bm.bmWidth/2;
yo = m_bm.bmHeight/2;
bm1 = new CBitmap;
bm1->CreateCompatibleBitmap(pDC, m_bm.bmWidth, m_bm.bmHeight);
dc1.SelectObject(bm1);
::BitBlt(dc1.m_hDC, 0, 0, m_bm.bmWidth, m_bm.bmHeight, dc1.m_hDC, 0, 0, WHITENESS);
for(y = 0; y < (m_bm.bmHeight - 1); y++){
for(x = 0; x< (m_bm.bmWidth - 1); x++){
r = sqrt(pow((x - xo), 2) + pow((y - yo), 2));
SinCos(m_iangel + atan2((y - yo), (x - xo)), s, c);
dc1.SetPixel(x, y, dc.GetPixel( (int)(xo + r * c), (int)(yo + r * s) ) );
}
}
::BitBlt(pDC->m_hDC, 0, 0, m_bm.bmWidth, m_bm.bmHeight, dc1.m_hDC, 0, 0, SRCCOPY);
bm1->DeleteObject();
bm->Detach();
dc.DeleteDC();
dc1.DeleteDC();
}
void CTurnImView::SinCos(double AngleRad, double &ASin, double &ACos)
{
ASin = sin(AngleRad);
ACos = cos(AngleRad);
}
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Файл TurnImDoc.cpp | Код |
void CTurnImDoc::Serialize(CArchive& ar)
{
if (ar.IsStoring())
{
// TODO: add storing code here
}
else
{
// TODO: add loading code here
m_strputh = (ar.GetFile())->GetFilePath();
m_hBitmap = (HBITMAP) LoadImage(0, m_strputh,IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE | LR_DEFAULTSIZE);
m_bloadfile = true;
}
}
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Правильность работы программы зависит от двух велечин.
В нужном месте должны стоять нолик и еденичка. |
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