void CGridColumnTraitText::OnCustomDraw(CGridListCtrlEx& owner, NMLVCUSTOMDRAW* pLVCD, LRESULT* pResult)
{
int nRow = (int)pLVCD->nmcd.dwItemSpec;
switch (pLVCD->nmcd.dwDrawStage)
{
// Before painting a cell
case CDDS_ITEMPREPAINT | CDDS_SUBITEM:
{
// Remove the selection color for the focus cell, to make it easier to see focus
int nCol = pLVCD->iSubItem;
if (pLVCD->nmcd.uItemState & CDIS_SELECTED && owner.GetFocusCell()==nCol && owner.GetFocusRow()==nRow)
{
pLVCD->nmcd.uItemState &= ~CDIS_SELECTED;
}
if (!owner.IsRowSelected(nRow) && owner.GetHotItem()!=nRow)
{
if (UpdateTextColor(pLVCD->clrText))
*pResult |= CDRF_NEWFONT;
if (UpdateBackColor(pLVCD->clrTextBk))
*pResult |= CDRF_NEWFONT;
// Only change cell colors when not selected / in focus
if (owner.OnDisplayCellColor(nRow, nCol, pLVCD->clrText, pLVCD->clrTextBk))
*pResult |= CDRF_NEWFONT;
}
LOGFONT newFont = {0};
if (owner.OnDisplayCellFont(nRow, nCol, newFont))
{
CDC* pDC = CDC::FromHandle(pLVCD->nmcd.hdc);
CFont* pNewFont = new CFont;
VERIFY( pNewFont->CreateFontIndirect(&newFont) );
m_pOldFont = pDC->SelectObject(pNewFont);
*pResult |= CDRF_NOTIFYPOSTPAINT; // We need to restore the original font
*pResult |= CDRF_NEWFONT;
}
} break;
// After painting a cell
case CDDS_ITEMPOSTPAINT | CDDS_SUBITEM:
{
if (m_pOldFont!=NULL)
{
// Restore the original font
CDC* pDC = CDC::FromHandle(pLVCD->nmcd.hdc);
CFont* pNewFont = pDC->SelectObject(m_pOldFont);
delete pNewFont;
}
} break;
}
}
//------------------------------------------------------------------------
//! Overrides the custom draw handler, to allow custom coloring of rows.
//! - Fix white background for icon images
//! - Fix white background between icon and cell text
//!
//! @param owner The list control drawing
//! @param pLVCD Pointer to NMLVCUSTOMDRAW structure
//! @param pResult Modification to the drawing stage (CDRF_NEWFONT, etc.)
//------------------------------------------------------------------------
void CGridRowTraitXP::OnCustomDraw(CGridListCtrlEx& owner, NMLVCUSTOMDRAW* pLVCD, LRESULT* pResult)
{
if (owner.UsingVisualStyle())
{
// Perform standard drawing
CGridRowTraitText::OnCustomDraw(owner, pLVCD, pResult);
return;
}
// We are using classic- or XP-style
int nRow = (int)pLVCD->nmcd.dwItemSpec;
// Repair the standard drawing
switch (pLVCD->nmcd.dwDrawStage)
{
case CDDS_ITEMPREPAINT | CDDS_SUBITEM:
{
// We want to fix cell images
*pResult |= CDRF_NOTIFYPOSTPAINT;
} break;
case CDDS_ITEMPOSTPAINT | CDDS_SUBITEM:
{
// Fix CListCtrl selection drawing bug with white background for icon image
// Fix CListCtrl selection drawing bug with white margin between icon and text
int nCol = pLVCD->iSubItem;
if (CRect(pLVCD->nmcd.rc)==CRect(0,0,0,0))
break;
int nImage = owner.GetCellImage(nRow, nCol);
if (nImage == I_IMAGECALLBACK)
break;
CImageList* pImageList = owner.GetImageList(LVSIL_SMALL);
if (pImageList==NULL)
break;
COLORREF backColor = COLORREF(-1);
if (owner.GetExtendedStyle() & LVS_EX_TRACKSELECT && owner.GetHotItem()==nRow)
{
#if(WINVER >= 0x0500)
backColor = ::GetSysColor(COLOR_HOTLIGHT);
#else
if (owner.IsRowSelected(nRow))
backColor = ::GetSysColor(COLOR_HIGHLIGHT);
else
break;
#endif
}
else
if (owner.IsRowSelected(nRow))
{
if (!(owner.GetExtendedStyle() & LVS_EX_FULLROWSELECT))
break; // No drawing of selection color without full-row-select
if (m_InvertCellSelection && owner.GetFocusRow()==nRow && owner.GetFocusCell()==nCol)
{
// No drawing of selection color for focus cell
if (pLVCD->clrTextBk > RGB(255,255,255))
break;
backColor = pLVCD->clrTextBk;
}
else
{
if (owner.GetFocus()!=&owner && !owner.IsCellEditorOpen())
{
// Selection color is different when not having focus
if (owner.GetStyle() & LVS_SHOWSELALWAYS)
backColor = ::GetSysColor(COLOR_BTNFACE);
else
break; // no drawing of selection color when not in focus
}
else
{
backColor = ::GetSysColor(COLOR_HIGHLIGHT);
}
}
}
else
{
// Redraw with the given background color
if (pLVCD->clrTextBk > RGB(255,255,255))
break; // If a color is more than white, then it is invalid
backColor = pLVCD->clrTextBk;
}
CDC* pDC = CDC::FromHandle(pLVCD->nmcd.hdc);
CRect rcIcon, rcCell;
VERIFY( owner.GetCellRect(nRow, nCol, LVIR_ICON, rcIcon) );
VERIFY( owner.GetCellRect(nRow, nCol, LVIR_BOUNDS, rcCell) );
// When the label column is placed first it has a left-margin
if (nCol==0 && nCol==owner.GetFirstVisibleColumn())
{
int cxborder = ::GetSystemMetrics(SM_CXBORDER);
rcCell.left += cxborder*2;
}
// Remove white margin between cell-image and cell-text
rcCell.right = rcIcon.right + 2;
CBrush brush(backColor);
pDC->FillRect(&rcCell, &brush);
// Draw icon
COLORREF oldBkColor = pImageList->SetBkColor(backColor);
pImageList->Draw ( pDC,
nImage,
rcIcon.TopLeft(),
ILD_NORMAL );
pImageList->SetBkColor(oldBkColor);
if (nCol==0 && owner.GetExtendedStyle() & LVS_EX_CHECKBOXES)
{
CImageList* pStateImageList = owner.GetImageList(LVSIL_STATE);
if (pImageList==NULL)
break;
int checkState = owner.GetCheck(nRow);
COLORREF oldStateBkColor = pStateImageList->SetBkColor(backColor);
pStateImageList->Draw ( pDC,
checkState,
rcCell.TopLeft(),
ILD_NORMAL );
pStateImageList->SetBkColor(oldStateBkColor);
}
} break;
}
// Perform standard drawing
CGridRowTraitText::OnCustomDraw(owner, pLVCD, pResult);
}
