splittree.cpp

ecos实时嵌入式操作系统

    // or the top of the window? How would we convert?
    wxRect itemSize;
    if (GetBoundingRect(id, itemSize))
    {
        rect = CombineRectangles(rect, itemSize);
    }

    long cookie;
    wxTreeItemId childId = GetFirstChild(id, cookie);
    while (childId != 0)
    {
        CalcTreeSize(childId, rect);
        childId = GetNextChild(childId, cookie);
    }
}

// Find the scrolled window that contains this control
ecScrolledWindow* wxRemotelyScrolledTreeCtrl::GetScrolledWindow() const
{
    wxWindow* parent = wxWindow::GetParent();
    while (parent)
    {
        if (parent->IsKindOf(CLASSINFO(ecScrolledWindow)))
            return (ecScrolledWindow*) parent;
        parent = parent->GetParent();
    }
    return NULL;
}

void wxRemotelyScrolledTreeCtrl::OnScroll(wxScrollWinEvent& event)
{
    int orient = event.GetOrientation();
    if (orient == wxHORIZONTAL)
    {
        event.Skip();
        return;
    }
    ecScrolledWindow* scrollWin = GetScrolledWindow();
    if (!scrollWin)
        return;
    
    int x, y;
    scrollWin->GetViewStart(& x, & y);
    
    ScrollToLine(-1, y);
}

/*
* wxTreeCompanionWindow
*
* A window displaying values associated with tree control items.
*/

IMPLEMENT_CLASS(wxTreeCompanionWindow, wxWindow)

BEGIN_EVENT_TABLE(wxTreeCompanionWindow, wxWindow)
EVT_PAINT(wxTreeCompanionWindow::OnPaint)
EVT_SCROLLWIN(wxTreeCompanionWindow::OnScroll)
EVT_TREE_ITEM_EXPANDED(-1, wxTreeCompanionWindow::OnExpand)
EVT_TREE_ITEM_COLLAPSED(-1, wxTreeCompanionWindow::OnExpand)
END_EVENT_TABLE()

wxTreeCompanionWindow::wxTreeCompanionWindow(wxWindow* parent, wxWindowID id,
                                             const wxPoint& pos,
                                             const wxSize& sz,
                                             long style):
wxWindow(parent, id, pos, sz, style)
{
    m_treeCtrl = NULL;
}

void wxTreeCompanionWindow::DrawItem(wxDC& dc, wxTreeItemId id, const wxRect& rect)
{
    if (m_treeCtrl)
    {
        wxString text = m_treeCtrl->GetItemText(id);
        dc.SetTextForeground(* wxBLACK);
        dc.SetBackgroundMode(wxTRANSPARENT);
        
        int textW, textH;
        dc.GetTextExtent(text, & textW, & textH);
        
        int x = 5;
        int y = rect.GetY() + wxMax(0, (rect.GetHeight() - textH) / 2);
        
        dc.DrawText(text, x, y);
    }
}

void wxTreeCompanionWindow::OnPaint(wxPaintEvent& event)
{
    wxPaintDC dc(this);
    
    if (!m_treeCtrl)
        return;
    
    wxPen pen(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DLIGHT), 1, wxSOLID);
    dc.SetPen(pen);
    dc.SetBrush(* wxTRANSPARENT_BRUSH);
    wxFont font(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
    dc.SetFont(font);
    
    wxSize clientSize = GetClientSize();
    wxRect itemRect;
    int cy=0;
    wxTreeItemId h, lastH;
    for(h=m_treeCtrl->GetFirstVisibleItem();h;h=m_treeCtrl->GetNextVisible(h))
    {
        if (m_treeCtrl->GetBoundingRect(h, itemRect))
        {
            cy = itemRect.GetTop();
            wxRect drawItemRect(0, cy, clientSize.x, itemRect.GetHeight());
            
            lastH = h;
            
            // Draw the actual item
            DrawItem(dc, h, drawItemRect);
            dc.DrawLine(0, cy, clientSize.x, cy);
        }
    }
    if (lastH.IsOk() && m_treeCtrl->GetBoundingRect(lastH, itemRect))
    {
        cy = itemRect.GetBottom();
        dc.DrawLine(0, cy, clientSize.x, cy);
    }
}

void wxTreeCompanionWindow::OnScroll(wxScrollWinEvent& event)
{
    int orient = event.GetOrientation();
    if (orient == wxHORIZONTAL)
    {
        event.Skip();
        return;
    }
    if (!m_treeCtrl)
        return;
    
    // TODO: scroll the window physically instead of just refreshing.
    Refresh(TRUE);
}

void wxTreeCompanionWindow::OnExpand(wxTreeEvent& event)
{
    // TODO: something more optimized than simply refresh the whole
    // window when the tree is expanded/collapsed. Tricky.
    Refresh();
}

/*
* wxThinSplitterWindow
*/

IMPLEMENT_CLASS(wxThinSplitterWindow, wxSplitterWindow)

BEGIN_EVENT_TABLE(wxThinSplitterWindow, wxSplitterWindow)
EVT_SIZE(wxThinSplitterWindow::OnSize)
// Not in older versions of wxWindows, unfortunately
#if 0
EVT_SPLITTER_DOUBLECLICKED(-1, wxThinSplitterWindow::OnDoubleClickSash)
#endif
END_EVENT_TABLE()

wxThinSplitterWindow::wxThinSplitterWindow(wxWindow* parent, wxWindowID id,
                                           const wxPoint& pos,
                                           const wxSize& sz,
                                           long style):
wxSplitterWindow(parent, id, pos, sz, style)
{
}

void wxThinSplitterWindow::SizeWindows()
{
    // The client size may have changed inbetween
    // the sizing of the first window and the sizing of
    // the second. So repeat SizeWindows.
    wxSplitterWindow::SizeWindows();
    wxSplitterWindow::SizeWindows();
}

// Tests for x, y over sash
bool wxThinSplitterWindow::SashHitTest(int x, int y, int tolerance)
{
    return wxSplitterWindow::SashHitTest(x, y, 4);
}

void wxThinSplitterWindow::DrawSash(wxDC& dc)
{
    if ( m_sashPosition == 0 || !m_windowTwo)
        return;
    if (GetWindowStyle() & wxSP_NOSASH)
        return;
    
    int w, h;
    GetClientSize(&w, &h);
    
    if ( m_splitMode == wxSPLIT_VERTICAL )
    {
        dc.SetPen(* m_facePen);
        dc.SetBrush(* m_faceBrush);
        int h1 = h-1;
        int y1 = 0;
        if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER )
            h1 += 1; // Not sure why this is necessary...
        if ( (GetWindowStyleFlag() & wxSP_3DBORDER) == wxSP_3DBORDER)
        {
            y1 = 2; h1 -= 3;
        }
        dc.DrawRectangle(m_sashPosition, y1, m_sashSize, h1);
    }
    else
    {
        dc.SetPen(* m_facePen);
        dc.SetBrush(* m_faceBrush);
        int w1 = w-1;
        int x1 = 0;
        if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER && (GetWindowStyleFlag() & wxSP_3DBORDER) != wxSP_3DBORDER )
            w1 ++;
        if ( (GetWindowStyleFlag() & wxSP_3DBORDER) == wxSP_3DBORDER)
        {
            x1 = 2; w1 -= 3;
        }
        dc.DrawRectangle(x1, m_sashPosition, w1, m_sashSize);
    }
    
    dc.SetPen(wxNullPen);
    dc.SetBrush(wxNullBrush);
}

void wxThinSplitterWindow::OnSize(wxSizeEvent& event)
{
    wxSplitterWindow::OnSize(event);
}

/*
* wxSplitterScrolledWindow
*/

IMPLEMENT_CLASS(wxSplitterScrolledWindow, ecScrolledWindow)

BEGIN_EVENT_TABLE(wxSplitterScrolledWindow, ecScrolledWindow)
EVT_SCROLLWIN(wxSplitterScrolledWindow::OnScroll)
EVT_SIZE(wxSplitterScrolledWindow::OnSize)
END_EVENT_TABLE()

wxSplitterScrolledWindow::wxSplitterScrolledWindow(wxWindow* parent, wxWindowID id,
                                                   const wxPoint& pos,
                                                   const wxSize& sz,
                                                   long style):
  ecScrolledWindow(parent, id, pos, sz, style)
{
}

void wxSplitterScrolledWindow::OnSize(wxSizeEvent& event)
{
    wxSize sz = GetClientSize();
    if (GetChildren().First())
    {
        ((wxWindow*) GetChildren().First()->Data())->SetSize(0, 0, sz.x, sz.y);
    }
}

void wxSplitterScrolledWindow::OnScroll(wxScrollWinEvent& event)
{
    // Ensure that events being propagated back up the window hierarchy
    // don't cause an infinite loop
    static bool inOnScroll = FALSE;
    if (inOnScroll)
    {
        event.Skip();
        return;
    }
    inOnScroll = TRUE;
    
    int orient = event.GetOrientation();
    
    int nScrollInc = CalcScrollInc(event);
    if (nScrollInc == 0)
    {
        inOnScroll = FALSE;
        return;
    }
    
    if (orient == wxHORIZONTAL)
    {
        inOnScroll = FALSE;
        event.Skip();
        return;
#if 0
        int newPos = m_xScrollPosition + nScrollInc;
        SetScrollPos(wxHORIZONTAL, newPos, TRUE );
#endif
    }
    else
    {
        int newPos = m_yScrollPosition + nScrollInc;
        SetScrollPos(wxVERTICAL, newPos, TRUE );
    }
    
    if (orient == wxHORIZONTAL)
    {
        m_xScrollPosition += nScrollInc;
    }
    else
    {
        m_yScrollPosition += nScrollInc;
    }
    
    // Find targets in splitter window and send the event to them
    wxNode* node = GetChildren().First();
    while (node)
    {
        wxWindow* child = (wxWindow*) node->Data();
        if (child->IsKindOf(CLASSINFO(wxSplitterWindow)))
        {
            wxSplitterWindow* splitter = (wxSplitterWindow*) child;
            if (splitter->GetWindow1())
                splitter->GetWindow1()->ProcessEvent(event);
            if (splitter->GetWindow2())
                splitter->GetWindow2()->ProcessEvent(event);
            break;
        }
        node = node->Next();
    }
    
#ifdef __WXMAC__
    m_targetWindow->MacUpdateImmediately() ;
#endif
    
    inOnScroll = FALSE;
}