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Center vertically the image in a ribbon button
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ovidiumvp View Drop Down
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Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ovidiumvp Quote  Post ReplyReply Direct Link To This Post Topic: Center vertically the image in a ribbon button
    Posted: 11 November 2016 at 10:30am
I added button controls to a ribbon, changing the default size for each one (that was a requirement).

void CMyRibbon::Init()
{
    //...
    CXTPRibbonGroup* pMyGroup = pMyTab->AddGroup(ID_MY_GROUP);
    pMyGroup->SetControlsCentering();
    pMyGroup->SetArrangeEditCaption(TRUE);
    AddButtonToGroup(pMyGroup, ID_MY_BUTTON);
    //...
}
   
CXTPControlButton* CMyRibbon::AddButtonToGroup(CXTPRibbonGroup* pParentGroup, int nID)
{
    CXTPControlButton* pButton = (CXTPControlButton*)pParentGroup->Add(xtpControlButton, nID);

    pButton->SetStyle(xtpButtonIconAndCaptionBelow);
    pButton->SetWidth(XTP_DPI_X(54));
    pButton->SetHeight(XTP_DPI_Y(82));

    return pButton;
}
So far so good but someones complain that doesn't look very well, because the image is aligned to the top of button, the text is aligned to the bottom, so the space between image and text is too large.
  
Is it any easy way to center vertically the image in the button?
Note: I'm using Office 2013 theme. 
Ovidiu
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olebed View Drop Down
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Points: 841 		Post Options Post Options   Thanks (0) Thanks(0)   Quote olebed Quote  Post ReplyReply Direct Link To This Post Posted: 12 November 2016 at 10:54am
Hello Ovidiu,

Algogithm for drawing ribbon buttons is in CXTPPaintManager::DrawControlToolBarParent() method. 
See for  
if (buttonStyle == xtpButtonIconAndCaptionBelow)

You can change code to 
    if (buttonStyle == xtpButtonIconAndCaptionBelow)
    {
        .... // without changes
        if (bDraw)
        {
            // swap parts of drawing  text and image to get correct rcText to center image
            CRect rcText = rcButton;
            ....
            CSize szText = DrawControlText2(pDC, pButton, CXTPEmptyRect(), FALSE, bVert, bTriangled);
            ....
            DrawControlText2(pDC, pButton, rcText, TRUE, bVert, bTriangled);

            if (bDrawImage)
            {
                CSize szScalledIcon = (!bDPIIconsScallingEnabled) ? szIcon :
                    CSize(XTP_DPI_X(szIcon.cx), XTP_DPI_Y(szIcon.cy));

                if (bDPIIconsScallingEnabled)
                {
                    szScalledIcon.cx = min(szButton.cx - nDpiScallingButtonMargin, szScalledIcon.cx);
                    szScalledIcon.cy = min(szButton.cy - nDpiScallingButtonMargin, szScalledIcon.cy);
                }

                CPoint pt;
                if (bVert)
                    pt = CPoint(rcButton.left + XTP_DPI_X(4) + nSplitDropDownHeight, rcButton.CenterPoint().y - szScalledIcon.cy / 2);
                else
                {
                    rcButton.bottom -= rcText.Height();
                    rcButton.top    += XTP_DPI_Y(3);
                    pt = CPoint(rcButton.CenterPoint().x - szScalledIcon.cx / 2, rcButton.CenterPoint().y - szScalledIcon.cy / 2);
                }

                DrawImage(pDC, pt, szScalledIcon, pImage, bSelected, bPressed, bEnabled, bChecked, bPopuped);
            }
        }
        else
        {
            .....
        }
        return GetControlSize(pButton, szButton, bVert);
    }

Regards,
 Oleksandr Lebed
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ovidiumvp View Drop Down
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Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ovidiumvp Quote  Post ReplyReply Direct Link To This Post Posted: 14 November 2016 at 3:34am
Thank you very much!
Ovidiu
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