void CTreeListCtrl::OnPaint()
{
CPaintDC dc(this); // device context for painting
CRect rcClip, rcClient;
dc.GetClipBox( &rcClip );
GetClientRect(&rcClient);
// Set clip region to be same as that in paint DC
CRgn rgn;
rgn.CreateRectRgnIndirect( &rcClip );
dc.SelectClipRgn(&rgn);
rgn.DeleteObject();
COLORREF m_wndColor = GetSysColor( COLOR_WINDOW );
dc.SetViewportOrg(m_nOffset, 0);
dc.SetTextColor(m_wndColor);
// First let the control do its default drawing.
CWnd::DefWindowProc( WM_PAINT, (WPARAM)dc.m_hDC, 0 );
HTREEITEM hItem = GetFirstVisibleItem();
int n = GetVisibleCount(), m_nWidth;
dc.FillSolidRect(GetColumnWidth(0),1,rcClient.Width(),rcClient.Height(),m_wndColor);
CTreeListItem *pItem;
// the most urgent thing is to erase the labels that were drawn by the tree
while(hItem!=NULL && n>=0)
{
CRect rect;
UINT selflag = TVIS_DROPHILITED | TVIS_SELECTED;
CRect m_labelRect;
GetItemRect( hItem, &m_labelRect, TRUE );
GetItemRect( hItem, &rect, FALSE );
if (GetColumnsNum()>1)
rect.left = min(m_labelRect.left, GetColumnWidth(0));
else
rect.left = m_labelRect.left;
rect.right = m_nColumnsWidth;
dc.FillSolidRect(rect.left,rect.top,rect.Width(),rect.Height(),m_wndColor);
hItem = GetNextVisibleItem( hItem );
n--;
}
// create the font
CFont *pFontDC;
CFont fontDC, boldFontDC;
LOGFONT logfont;
CFont *pFont = GetFont();
pFont->GetLogFont( &logfont );
fontDC.CreateFontIndirect( &logfont );
pFontDC = dc.SelectObject( &fontDC );
logfont.lfWeight = 700;
boldFontDC.CreateFontIndirect( &logfont );
// and now let's get to the painting itself
hItem = GetFirstVisibleItem();
n = GetVisibleCount();
while (hItem != NULL && n >= 0)
{
CRect rect;
UINT selflag = TVIS_DROPHILITED | TVIS_SELECTED;
if ( !(GetItemState( hItem, selflag ) & selflag ))
{
dc.SetBkMode(TRANSPARENT);
pItem = (CTreeListItem *)CTreeCtrl::GetItemData(hItem);
CString sItem = ((pItem != NULL) ? pItem->GetItemText() : "");
CRect m_labelRect;
GetItemRect( hItem, &m_labelRect, TRUE );
GetItemRect( hItem, &rect, FALSE );
if (GetColumnsNum()>1)
rect.left = min(m_labelRect.left, GetColumnWidth(0));
else
rect.left = m_labelRect.left;
rect.right = m_nColumnsWidth;
dc.SetBkColor( m_wndColor );
if (pItem != NULL)
{
dc.SetTextColor( pItem->m_Color );
if (pItem->m_Bold)
{
dc.SelectObject( &boldFontDC );
}
}
int imageIndex;
int selectedImageIndex;
GetItemImage(hItem,imageIndex,selectedImageIndex);
int imageOffset = 0;
if (imageIndex >= 0)
{
m_imageList->Draw(&dc,imageIndex,rect.TopLeft(),ILD_TRANSPARENT);
imageOffset = 16;
}
DrawItemText(&dc, sItem, CRect(rect.left+2+imageOffset, rect.top, GetColumnWidth(0)-imageOffset, rect.bottom),
GetColumnWidth(0)-rect.left-2-imageOffset, GetColumnAlign(0));
m_nWidth = 0;
for (int i = 1;i < m_nColumns;i++)
{
CString subString = ((pItem != NULL) ? pItem->GetSubstring(*this,hItem,i) : "");
m_nWidth += GetColumnWidth(i-1);
DrawItemText(&dc,subString,CRect(m_nWidth, rect.top, m_nWidth+GetColumnWidth(i), rect.bottom), GetColumnWidth(i), GetColumnAlign(i));
}
dc.SetTextColor(::GetSysColor (COLOR_WINDOWTEXT ));
if (pItem != NULL && pItem->m_Bold)
{
dc.SelectObject( &fontDC );
}
}
else
{
CRect m_labelRect;
GetItemRect( hItem, &m_labelRect, TRUE );
GetItemRect( hItem, &rect, FALSE );
if (GetColumnsNum() > 1)
rect.left = min(m_labelRect.left, GetColumnWidth(0));
else
rect.left = m_labelRect.left;
rect.right = m_nColumnsWidth;
int imageIndex;
int selectedImageIndex;
GetItemImage(hItem,imageIndex,selectedImageIndex);
int imageOffset = 0;
if (selectedImageIndex >= 0)
{
m_imageList->Draw(&dc,selectedImageIndex,rect.TopLeft(),ILD_TRANSPARENT);
imageOffset = 16;
}
// If the item is selected, paint the rectangle with the system color
// COLOR_HIGHLIGHT
COLORREF m_highlightColor = ::GetSysColor (COLOR_HIGHLIGHT);
CBrush brush(m_highlightColor);
CRect fillRect(rect);
fillRect.left += imageOffset;
dc.FillRect (fillRect, &brush);
// draw a dotted focus rectangle
dc.DrawFocusRect (rect);
pItem = (CTreeListItem *)CTreeCtrl::GetItemData(hItem);
CString sItem = ((pItem != NULL) ? pItem->GetItemText() : "");
dc.SetBkColor(m_highlightColor);
dc.SetTextColor(::GetSysColor (COLOR_HIGHLIGHTTEXT));
if (pItem != NULL && pItem->m_Bold)
{
dc.SelectObject( &boldFontDC );
}
//DrawItemText(&dc, sItem, CRect(rect.left+2, rect.top, GetColumnWidth(0), rect.bottom), GetColumnWidth(0)-rect.left-2, GetColumnAlign(0));
DrawItemText(&dc, sItem, CRect(rect.left+2+imageOffset, rect.top, GetColumnWidth(0)-imageOffset, rect.bottom),
GetColumnWidth(0)-rect.left-2-imageOffset, GetColumnAlign(0));
m_nWidth = 0;
for (int i = 1;i < m_nColumns;i++)
{
CString subString = ((pItem != NULL) ? pItem->GetSubstring(*this,hItem,i) : "");
m_nWidth += GetColumnWidth(i-1);
DrawItemText(&dc,subString,CRect(m_nWidth, rect.top, m_nWidth+GetColumnWidth(i), rect.bottom), GetColumnWidth(i), GetColumnAlign(i));
}
if (pItem != NULL && pItem->m_Bold)
{
dc.SelectObject( &fontDC );
}
}
hItem = GetNextVisibleItem( hItem );
n--;
}
dc.SelectObject( pFontDC );
}
void
ListBox::DrawContent(const Rect& ctrl_rect)
{
SizeColumns();
Rect item_rect = ctrl_rect;
item_rect.h = line_height;
int h = rect.h;
// draw headings at top, if needed:
if (show_headings) {
Color save_color = back_color;
back_color = ShadeColor(back_color, 1.3);
font->SetColor(fore_color);
int max_column = columns.size()-1;
item_rect.h += HEADING_EXTRA;
page_size = (h-item_rect.h) / (line_height + leading);
for (int column = 0; column <= max_column; column++) {
item_rect.w = GetColumnWidth(column);
// draw heading button
FillRect(item_rect, back_color);
DrawStyleRect(item_rect, WIN_RAISED_FRAME);
Rect title_rect = item_rect;
title_rect.Deflate(3,3);
DrawText(GetColumnTitle(column),
0,
title_rect,
DT_CENTER|DT_SINGLELINE);
item_rect.x += item_rect.w;
}
item_rect.y += item_rect.h;
back_color = save_color;
item_rect.h = line_height;
}
int index = 0;
ListIter<ListBoxItem> iter = items;
while (++iter && item_rect.y < h) {
ListBoxItem* item = iter.value();
if (index++ >= top_index) {
// draw main item:
int column = 0;
item_rect.x = ctrl_rect.x;
item_rect.w = GetColumnWidth(column) - 2;
if (item_rect.y + item_rect.h > h) {
item_rect.h = h - item_rect.y - 1;
}
Color item_color = GetItemColor(index-1, 0);
if (item->selected) {
font->SetColor(selected_color);
if (seln_style == LIST_ITEM_STYLE_FILLED_BOX)
FillRect(item_rect, selected_color * 0.25);
if (seln_style >= LIST_ITEM_STYLE_BOX)
DrawRect(item_rect, selected_color);
}
else {
font->SetColor(item_color);
if (item_style == LIST_ITEM_STYLE_FILLED_BOX)
FillRect(item_rect, item_color * 0.25);
if (item_style >= LIST_ITEM_STYLE_BOX)
DrawRect(item_rect, item_color);
}
Rect text_rect = item_rect;
if (item->image && item->image->Width() > 0 && item->image->Height() > 0) {
DrawBitmap(text_rect.x, text_rect.y, text_rect.x + text_rect.w, text_rect.y + line_height, item->image);
}
else {
text_rect.Deflate(2,0);
DrawText(item->text.data(),
item->text.length(),
text_rect,
GetColumnAlign(column)|DT_SINGLELINE);
}
// draw subitems:
ListIter<ListBoxCell> sub_iter = item->subitems;
while (++sub_iter) {
ListBoxCell* sub = sub_iter.value();
column++;
item_rect.x += item_rect.w + 2;
item_rect.w = GetColumnWidth(column) - 2;
if (item->selected) {
if (seln_style == LIST_ITEM_STYLE_FILLED_BOX)
FillRect(item_rect, selected_color * 0.25);
if (seln_style >= LIST_ITEM_STYLE_BOX)
DrawRect(item_rect, selected_color);
}
else {
if (item_style == LIST_ITEM_STYLE_FILLED_BOX)
FillRect(item_rect, item_color * 0.25);
if (item_style >= LIST_ITEM_STYLE_BOX)
DrawRect(item_rect, item_color);
}
if (item->selected)
font->SetColor(selected_color);
else
font->SetColor(GetItemColor(index-1, column));
Rect text_rect = item_rect;
if (sub->image && sub->image->Width() > 0 && sub->image->Height() > 0) {
DrawBitmap(text_rect.x, text_rect.y, text_rect.x + text_rect.w, text_rect.y + line_height, sub->image);
}
else {
text_rect.Deflate(2,0);
DrawText(sub->text.data(),
sub->text.length(),
text_rect,
GetColumnAlign(column)|DT_SINGLELINE);
}
}
item_rect.y += line_height + leading;
}
}
}
