006
19.06.2003, 22:08 Uhr
Uwe
C/C++ Master
(Administrator)
|
Hallo,
Die Zuordnung in Deine Liste kannst Du selbst noch implementieren.
| C++: |
public:
afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
afx_msg void OnLButtonUp(UINT nFlags, CPoint point);
afx_msg void OnMouseMove(UINT nFlags, CPoint point);
private:
CPoint m_pointTopLeftC1, m_pointTopLeftC2, m_pointTopLeftC3;
const CSize m_sizeEllipse1, m_sizeEllipse2, m_sizeEllipse3;
bool m_bCircle1, m_bCircle2, m_bCircle3;
CSize m_sizeOffset;
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| C++: |
CAnsichtDlg::CAnsichtDlg(CWnd* pParent /*=NULL*/)
: CDialog(CAnsichtDlg::IDD, pParent), m_sizeEllipse1(100, 100),
m_sizeEllipse2(80,80),
m_sizeEllipse3(170, 170),
m_pointTopLeftC1(10, 10),
m_pointTopLeftC2(100, 100),
m_pointTopLeftC3(150, 150),
m_sizeOffset(0, 0)
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
m_bCircle1 = FALSE;
m_bCircle2 = FALSE;
m_bCircle3 = FALSE;
}
...........
...........
void CAnsichtDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // Gerätekontext zum Zeichnen
SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);
// Symbol in Client-Rechteck zentrieren
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;
// Symbol zeichnen
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CBrush *pBrushBlank[3];
CPaintDC dc(this); // device context for painting
pBrushBlank[0] = new CBrush(RGB(255,0,0));
pBrushBlank[1] = new CBrush(RGB(0,255,0));
pBrushBlank[2] = new CBrush(RGB(0,0,255));
dc.SelectObject(pBrushBlank[0]);
dc.Ellipse(CRect(m_pointTopLeftC1, m_sizeEllipse1));
dc.SelectObject(pBrushBlank[1]);
dc.Ellipse(CRect(m_pointTopLeftC2, m_sizeEllipse2));
dc.SelectObject(pBrushBlank[2]);
dc.Ellipse(CRect(m_pointTopLeftC3, m_sizeEllipse3));
for(int i = 0; i<=2; i++)
delete pBrushBlank[i];
CDialog::OnPaint();
}
}
void CAnsichtDlg::OnLButtonDown(UINT nFlags, CPoint point)
{
CRect rectEllipse1(m_pointTopLeftC1, m_sizeEllipse1);
CRgn Circle1;
CRect rectEllipse2(m_pointTopLeftC2, m_sizeEllipse2);
CRgn Circle2;
CRect rectEllipse3(m_pointTopLeftC3, m_sizeEllipse3);
CRgn Circle3;
CClientDC dc(this);
dc.LPtoDP(rectEllipse1);
Circle1.CreateEllipticRgnIndirect(rectEllipse1);
if (Circle1.PtInRegion(point)){
SetCapture();
m_bCircle1 = TRUE;
CPoint pointTopLeft1(m_pointTopLeftC1);
dc.LPtoDP(&pointTopLeft1);
m_sizeOffset = point - pointTopLeft1;
}
dc.LPtoDP(rectEllipse2);
Circle2.CreateEllipticRgnIndirect(rectEllipse2);
if (Circle2.PtInRegion(point)){
SetCapture();
m_bCircle2 = TRUE;
CPoint pointTopLeft2(m_pointTopLeftC2);
dc.LPtoDP(&pointTopLeft2);
m_sizeOffset = point - pointTopLeft2;
}
dc.LPtoDP(rectEllipse3);
Circle3.CreateEllipticRgnIndirect(rectEllipse3);
if (Circle3.PtInRegion(point)){
SetCapture();
m_bCircle3 = TRUE;
CPoint pointTopLeft3(m_pointTopLeftC3);
dc.LPtoDP(&pointTopLeft3);
m_sizeOffset = point - pointTopLeft3;
}
CDialog::OnLButtonDown(nFlags, point);
}
void CAnsichtDlg::OnLButtonUp(UINT nFlags, CPoint point)
{
if (m_bCircle1){
::ReleaseCapture();
m_bCircle1 = FALSE;
}
if (m_bCircle2){
::ReleaseCapture();
m_bCircle2 = FALSE;
}
if (m_bCircle3){
::ReleaseCapture();
m_bCircle3 = FALSE;
}
CDialog::OnLButtonUp(nFlags, point);
}
void CAnsichtDlg::OnMouseMove(UINT nFlags, CPoint point)
{
if (m_bCircle1){
CClientDC dc(this);
CRect rectOld(m_pointTopLeftC1, m_sizeEllipse1);
dc.LPtoDP(rectOld);
InvalidateRect(rectOld, TRUE);
m_pointTopLeftC1 = point - m_sizeOffset;
dc.DPtoLP(&m_pointTopLeftC1);
CRect rectNew(m_pointTopLeftC1, m_sizeEllipse1);
dc.LPtoDP(rectNew);
InvalidateRect(rectNew, TRUE);
}
if (m_bCircle2){
CClientDC dc(this);
CRect rectOld(m_pointTopLeftC2, m_sizeEllipse2);
dc.LPtoDP(rectOld);
InvalidateRect(rectOld, TRUE);
m_pointTopLeftC2 = point - m_sizeOffset;
dc.DPtoLP(&m_pointTopLeftC2);
CRect rectNew(m_pointTopLeftC2, m_sizeEllipse2);
dc.LPtoDP(rectNew);
InvalidateRect(rectNew, TRUE);
}
if (m_bCircle3){
CClientDC dc(this);
CRect rectOld(m_pointTopLeftC3, m_sizeEllipse3);
dc.LPtoDP(rectOld);
InvalidateRect(rectOld, TRUE);
m_pointTopLeftC3 = point - m_sizeOffset;
dc.DPtoLP(&m_pointTopLeftC3);
CRect rectNew(m_pointTopLeftC3, m_sizeEllipse3);
dc.LPtoDP(rectNew);
InvalidateRect(rectNew, TRUE);
}
CDialog::OnMouseMove(nFlags, point);
}
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--
"Es ist schwierig, ein Programm wirklich idiotensicher zu machen, weil Idioten so genial sind."
Bis dann...
Uwe |
