//---------------------------------------------------------------------------
void __fastcall TForm1::OvcTCString1OwnerDraw(TObject *Sender,
TCanvas *TableCanvas, const TRect &CellRect, int RowNum, int ColNum,
const TOvcCellAttributes &CellAttr, Pointer Data, bool &DoneIt)
{
bool F;
TRect R;
TCanvas* C;
char Buf[255];
DoneIt = True;
R = CellRect;
C = TableCanvas;
// paint background
C->Brush->Style = bsClear;
C->Pen->Color = clBtnFace;
C->Rectangle(R.Left, R.Top, R.Right, R.Bottom);
// draw button
F = (RowNum == TBL->ActiveRow) && (ColNum == TBL->ActiveCol);
DrawButtonFace(C, R, 1, bsNew, true, F, F);
// draw data
if ((RowNum % 2) == 1)
C->Font->Color = clRed;
else
C->Font->Color = clBlack;
sprintf(Buf, "%d:%d", RowNum, ColNum);
DrawText(C->Handle, Buf, StrLen(Buf),
(RECT*)&R, DT_CENTER | DT_VCENTER | DT_SINGLELINE);
}
/*! This Function is called each time, the Button needs a redraw
*/
void CRoundButton2::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
// Get DC of Item
CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
ASSERT (pDC != NULL);
// Should Buttons be generated?
bool bGenerate = !m_rBtnSize.EqualRect(&lpDrawItemStruct->rcItem) || m_bRedraw;
// If Rectangles of Button are not the same
if (bGenerate)
{
// Generate Bitmap to hold Buttons
GenButtonBMPs(pDC, lpDrawItemStruct->rcItem);
// Redraw done
m_bRedraw = false;
}
// Generate DC to draw in Memory
CDC MemDC;
MemDC.CreateCompatibleDC(pDC);
HGDIOBJ hOldBmp = MemDC.SelectObject(m_tBmpBtn);
CString sActualCaption;
// Get actual caption
GetWindowText(sActualCaption);
// Check, if caption has changed
if (sActualCaption != m_sOldCaption)
bGenerate = true;
// Store old caption
m_sOldCaption = sActualCaption;
// If Rectangles of Button are not the same
if (bGenerate)
{
// Draw Buttons
DrawButtonFace(&MemDC);
// Draw Button-Caption
DrawButtonCaption(&MemDC);
}
int nButtonState;
nButtonState = BS_ENABLED;
if (m_bIsHotButton && m_bMouseOnButton)
nButtonState = BS_HOT;
if ((lpDrawItemStruct->itemState & ODS_DISABLED) == ODS_DISABLED)
nButtonState = BS_DISABLED;
else
{
if ((lpDrawItemStruct->itemState & ODS_SELECTED) == ODS_SELECTED)
nButtonState = BS_PRESSED;
else
{
if (this->m_bIsChecked)
{
nButtonState = BS_CLICKED;
}
}
}
// Copy correct Bitmap to Screen
pDC->BitBlt(
lpDrawItemStruct->rcItem.left,
lpDrawItemStruct->rcItem.top,
m_rBtnSize.Width(),
m_rBtnSize.Height(),
&MemDC,
0,
m_rBtnSize.Height() * nButtonState,
SRCCOPY);
MemDC.SelectObject(hOldBmp);
}