CXTPPropertyGridItem colors

Yes, we have this in our TODO list for 10.0 release.

Thank  you.

You can:

1. Create custom item inherited from CXTPPropertyGridItem

2. Override OnDrawItemValue

or

1 Create custom pain manager inherited from CXTPPropertyGridPaintManager

2. Override void DrawItem(PDRAWITEMSTRUCT lpDrawItemStruct)

oleg wrote: You can: 1. Create custom item inherited from CXTPPropertyGridItem 2. Override OnDrawItemValue

I'd also like to see a sinple way to set the background color, but the suggestion worked for me. In my case I wanted a simple valid / invalid coloring of items (numeric items outside a min to max range)

I always find code examples handy; so I have a class dervied from the ...GridItemNumber that adds range checking by looking at the ::SetValue string to set bool m_valid. The draw override uses it like this:

BOOL RangeCheckedGridItemNumber::OnDrawItemValue(CDC& dc, CRect rcValue)
{
 if (!m_valid)
 {
  // Highlight in red for invalid items
  CBrush red(RGB(255,128,128)); 
  dc.FillRect(rcValue, &red);
 }
 return CXTPPropertyGridItemNumber::OnDrawItemValue(dc, rcValue);
}

Keep up the good work

Colin

hpesata wrote: I am looking for a way to also color the item-caption, not only the value. Do You have any idea on how to do that ?

I had hoped it would be easy but I haven't exactly managed it. The closest I could get involved my own class derived from CXTPPropertyGridPaintManager

class CColorItemPaintManager : public CXTPPropertyGridPaintManager 
{
public:
    CColorItemPaintManager(CXTPPropertyGrid* pGrid);
    virtual ~CColorItemPaintManager();
    virtual void DrawItem(PDRAWITEMSTRUCT lpDrawItemStruct);
};

which I set in to the property grid when I created it

if ( m_wndPropertyGrid.Create( rc, this, IDC_PROPERTY_GRID ) )
{
    m_pPaintManager = new CColorItemPaintManager(&m_wndPropertyGrid);
    m_wndPropertyGrid.SetCustomTheme(m_pPaintManager);

and then, as an example, override DrawItem to splat red down on the selected row.

void CColorItemPaintManager::DrawItem(PDRAWITEMSTRUCT lpDrawItemStruct)
{
    if (ODS_SELECTED == (ODS_SELECTED & lpDrawItemStruct->itemState))
    {
        CRect rc = lpDrawItemStruct->rcItem;
        CDC dc;
        dc.Attach(lpDrawItemStruct->hDC);
        dc.FillSolidRect(rc, RGB(255,0,0));
        dc.Detach();
    }
    else
    {
        CXTPPropertyGridPaintManager::DrawItem(lpDrawItemStruct);
    }
}

The grid item value is still getting painted nicely but the caption is just a solid red rectangle. Filling it in nicely needs a fair bit more work - see Samples\PropertyGrid\OwnerDraw\SimpleGridPage.cpp for its DrawItem code.

Good luck!

Colin

Now that I've coughed up the price of the MFC version of PropertyGrid I've got the sources , so I've revisited it to see if it would be easy enough to change the base class to get grid items coloured.

I fell foul of include ordering so I opted for this slightly odd approach: I added a virtual method to the class CXTPPropertyGridItem to get the background colour for that item.

virtual void GetBackgroundColour(COLORREF & clr) { }

    COLORREF clrWindow = pView->m_clrBack;   <-- existing line
    pItem->GetBackgroundColour(clrWindow);    <--- added line

void RangeCheckedGridItemNumber::GetBackgroundColour(COLORREF & clr)
{
    clr = RGB(0,255,0);  // very green
}