int CSHeaderCtrl::DrawSortImage(CDC* pDC, const CRect& rect, LPHDITEM lphdi)
{
int iWidth = 0;
if (rect.Width() > 0)
{
UINT nSortIndex = SHC_STATE_TO_INDEX_SORT(lphdi->iImage);
CImageList* pImageList = GetImageList();
if(nSortIndex != SHC_NONE_SORT && pImageList != NULL)
{
POINT point;
point.y = rect.CenterPoint().y - ((m_sizeImage.cy+1) >> 1);
point.x = rect.left;
SIZE size;
size.cx = rect.Width() < m_sizeImage.cx ? rect.Width() : m_sizeImage.cx;
size.cy = m_sizeImage.cy;
// save image list background color
COLORREF rgb = pImageList->GetBkColor();
// set image list background color to same as header control
pImageList->DrawIndirect(pDC, GetIndexOfImageList(nSortIndex), point, size, CPoint(0, 0));
iWidth = size.cx;
}
// @pymethod int|PyCImageList|GetBkColor|Retrieves the background color of an Image List.
PyObject *PyCImageList_GetBkColor( PyObject *self, PyObject *args )
{
CImageList *pList;
if (!(pList=PyCImageList::GetImageList(self)))
return NULL;
CHECK_NO_ARGS2(args, "GetBkColor");
GUI_BGN_SAVE;
int rc = pList->GetBkColor();
GUI_END_SAVE;
return Py_BuildValue("i", rc);
}
///////////////////////////////////////////////////////////////////////////////
// DrawImage
int CXHeaderCtrl::DrawImage(CDC* pDC, CRect rect, LPHDITEM lphdi, BOOL bRight)
{
CImageList* pImageList = GetImageList();
int iWidth = 0;
if (lphdi->iImage != XHEADERCTRL_NO_IMAGE)
{
if (pImageList)
{
if (rect.Width() > 0)
{
POINT point;
point.y = rect.CenterPoint().y - (m_sizeImage.cy >> 1);
if (bRight)
point.x = rect.right - m_sizeImage.cx;
else
point.x = rect.left;
SIZE size;
size.cx = rect.Width()<m_sizeImage.cx ? rect.Width():m_sizeImage.cx;
size.cy = m_sizeImage.cy;
// save image list background color
COLORREF rgb = pImageList->GetBkColor();
// set image list background color to same as header control
pImageList->SetBkColor(pDC->GetBkColor());
pImageList->DrawIndirect(pDC, lphdi->iImage, point, size, CPoint(0, 0));
pImageList->SetBkColor(rgb);
iWidth = m_sizeImage.cx;
}
}
}
//------------------------------------------------------------------------
//! Appends the checkbox state images to the list control image list
//!
//! @param owner The list control adding column
//! @param imagelist The image list assigned to the list control
//! @return Image index where the two state images (unchecked/checked) was inserted
//------------------------------------------------------------------------
int CGridColumnTraitImage::AppendStateImages(CGridListCtrlEx& owner, CImageList& imagelist)
{
if (!(owner.GetExtendedStyle() & LVS_EX_SUBITEMIMAGES))
owner.SetExtendedStyle(owner.GetExtendedStyle() | LVS_EX_SUBITEMIMAGES);
if (!imagelist)
imagelist.Create(16, 16, ILC_COLOR16 | ILC_MASK, 1, 0);
if (!owner.GetImageList(LVSIL_SMALL))
owner.SetImageList(&imagelist, LVSIL_SMALL);
VERIFY(owner.GetImageList(LVSIL_SMALL) == &imagelist);
bool createdStateImages = false;
CImageList* pStateList = owner.GetImageList(LVSIL_STATE);
if (pStateList == NULL)
{
if (!(owner.GetExtendedStyle() & LVS_EX_CHECKBOXES))
{
createdStateImages = true;
owner.SetExtendedStyle(owner.GetExtendedStyle() | LVS_EX_CHECKBOXES);
pStateList = owner.GetImageList(LVSIL_STATE);
}
}
int imageCount = -1;
ASSERT(pStateList != NULL);
if (pStateList != NULL && pStateList->GetImageCount() >= 2)
{
imageCount = imagelist.GetImageCount();
// Get the icon size of current imagelist
CSize iconSize(16, 16);
if (imageCount > 0)
{
IMAGEINFO iconSizeInfo = { 0 };
VERIFY(imagelist.GetImageInfo(0, &iconSizeInfo));
iconSize =
CSize(iconSizeInfo.rcImage.right - iconSizeInfo.rcImage.left,
iconSizeInfo.rcImage.bottom - iconSizeInfo.rcImage.top);
}
// Scale the icon-position if necessary
CPoint iconPos(1, 0); // +1 pixel to avoid overlap with left-grid-line
{
IMAGEINFO stateSizeInfo = { 0 };
VERIFY(pStateList->GetImageInfo(0, &stateSizeInfo));
int stateIconHeight = stateSizeInfo.rcImage.bottom - stateSizeInfo.rcImage.top;
if (iconSize.cy > stateIconHeight)
iconPos.y = (iconSize.cy - stateIconHeight) / 2;
}
// Redraw the state-icon to match the icon size of the current imagelist (without scaling image)
CClientDC clienDC(&owner);
CDC memDC;
VERIFY(memDC.CreateCompatibleDC(&clienDC));
CBitmap dstBmp;
VERIFY(dstBmp.CreateCompatibleBitmap(&clienDC, iconSize.cx, iconSize.cy));
CBitmap* pBmpOld = memDC.SelectObject(&dstBmp);
COLORREF oldBkColor = pStateList->SetBkColor(imagelist.GetBkColor());
CBrush brush(imagelist.GetBkColor());
memDC.FillRect(CRect(0, 0, iconSize.cx, iconSize.cy), &brush);
VERIFY(pStateList->Draw(&memDC, 0, iconPos, ILD_NORMAL));
memDC.SelectObject(pBmpOld);
VERIFY(imagelist.Add(&dstBmp, oldBkColor) != -1);
pBmpOld = memDC.SelectObject(&dstBmp);
memDC.FillRect(CRect(0, 0, iconSize.cx, iconSize.cy), &brush);
VERIFY(pStateList->Draw(&memDC, 1, iconPos, ILD_NORMAL));
memDC.SelectObject(pBmpOld);
VERIFY(imagelist.Add(&dstBmp, oldBkColor) != -1);
pStateList->SetBkColor(oldBkColor);
}
if (createdStateImages)
owner.SetExtendedStyle(owner.GetExtendedStyle() & ~LVS_EX_CHECKBOXES);
return imageCount;
}