treelistctrl.cpp

Wxpython Implemented on Windows CE, Source code

    if(w != info.GetWidth()) {
        m_total_col_width += info.GetWidth() - w;
        m_owner->AdjustMyScrollbars();
        m_owner->m_dirty = TRUE;
    }
    Refresh();
}

// ---------------------------------------------------------------------------
// wxTreeListItem
// ---------------------------------------------------------------------------

wxTreeListItem::wxTreeListItem(wxTreeListMainWindow *owner,
                                     wxTreeListItem *parent,
                                     const wxArrayString& text,
                                     int image, int selImage,
                                     wxTreeItemData *data)
                 : m_text(text)
{
    m_images[wxTreeItemIcon_Normal] = image;
    m_images[wxTreeItemIcon_Selected] = selImage;
    m_images[wxTreeItemIcon_Expanded] = NO_IMAGE;
    m_images[wxTreeItemIcon_SelectedExpanded] = NO_IMAGE;

    m_data = data;
    m_x = m_y = 0;

    m_isCollapsed = TRUE;
    m_hasHilight = FALSE;
    m_hasPlus = FALSE;
    m_isBold = FALSE;

    m_owner = owner;

    m_parent = parent;

    m_attr = (wxTreeItemAttr *)NULL;
    m_ownsAttr = FALSE;

    // We don't know the height here yet.
    m_width = 0;
    m_height = 0;
}

wxTreeListItem::~wxTreeListItem()
{
    delete m_data;

    if (m_ownsAttr) delete m_attr;

    wxASSERT_MSG( m_children.IsEmpty(),
                  wxT("please call DeleteChildren() before deleting the item") );
}

void wxTreeListItem::DeleteChildren(wxTreeListMainWindow *tree)
{
    size_t count = m_children.Count();
    for ( size_t n = 0; n < count; n++ )
    {
        wxTreeListItem *child = m_children[n];
        if (tree)
            tree->SendDeleteEvent(child);

        child->DeleteChildren(tree);
        delete child;
    }

    m_children.Empty();
}

void wxTreeListItem::SetText( const wxString &text )
{
    if(m_text.GetCount() > 0) m_text[0] = text;
    else {
        m_text.Add(text);
    }
}

size_t wxTreeListItem::GetChildrenCount(bool recursively) const
{
    size_t count = m_children.Count();
    if ( !recursively )
        return count;

    size_t total = count;
    for (size_t n = 0; n < count; ++n)
    {
        total += m_children[n]->GetChildrenCount();
    }

    return total;
}

void wxTreeListItem::GetSize( int &x, int &y,
                                 const wxTreeListMainWindow *theButton )
{
    int bottomY=m_y+theButton->GetLineHeight(this);
    if ( y < bottomY ) y = bottomY;
    int width = m_x +  m_width;
    if ( x < width ) x = width;

    if (IsExpanded())
    {
        size_t count = m_children.Count();
        for ( size_t n = 0; n < count; ++n )
        {
            m_children[n]->GetSize( x, y, theButton );
        }
    }
}

wxTreeListItem *wxTreeListItem::HitTest(const wxPoint& point,
                                        const wxTreeListMainWindow *theCtrl,
                                        int &flags,
                                        int level)
{
    // for a hidden root node, don't evaluate it, but do evaluate children
    if (!(theCtrl->HasFlag(wxTR_HIDE_ROOT) && (level == 0)))
    {
        // evaluate the item
        int h = theCtrl->GetLineHeight(this);
        if ((point.y > m_y) && (point.y <= m_y + h))
        {
            // check for above/below middle
            int y_mid = m_y + h/2;
            if (point.y < y_mid )
                flags |= wxTREE_HITTEST_ONITEMUPPERPART;
            else
                flags |= wxTREE_HITTEST_ONITEMLOWERPART;

            // check for button hit
            int xCross = m_x; // - theCtrl->GetLineSpacing();
#ifdef __WXMAC__
            // according to the drawing code the triangels are drawn
            // at -4 , -4  from the position up to +10/+10 max
            if ((point.x > xCross-4) && (point.x < xCross+10) &&
                (point.y > y_mid-4) && (point.y < y_mid+10) &&
                HasPlus() && theCtrl->HasButtons() )
#else
            // 5 is the size of the plus sign
            if ((point.x > xCross-6) && (point.x < xCross+6) &&
                (point.y > y_mid-6) && (point.y < y_mid+6) &&
                HasPlus() && theCtrl->HasButtons() )
#endif
            {
                flags |= wxTREE_HITTEST_ONITEMBUTTON;
                return this;
            }

            // check for image hit
            if (theCtrl->m_imgWidth > 0 && GetImage() != NO_IMAGE) {
                int imgX = m_x - theCtrl->m_imgWidth2;
                if (HasPlus() && theCtrl->HasButtons())
                    imgX += theCtrl->m_btnWidth + LINEATROOT;
                int imgY = y_mid - theCtrl->m_imgHeight2;
                if ((point.x >= imgX) && (point.x <= (imgX + theCtrl->m_imgWidth)) &&
                    (point.y >= imgY) && (point.y <= (imgY + theCtrl->m_imgHeight))) {
                    flags |= wxTREE_HITTEST_ONITEMICON;
                    return this;
                }
            }

            // check for label hit
            int lblX = m_x - theCtrl->m_imgWidth2 + theCtrl->m_imgWidth + MARGIN;
            if ((point.x >= lblX) && (point.x <= (m_x + m_width)) &&
                (point.y >= m_y) && (point.y <= (m_y + h))) {
                flags |= wxTREE_HITTEST_ONITEMLABEL;
                return this;
            }

            // else check for indent
            if (point.x < m_x) {
                flags |= wxTREE_HITTEST_ONITEMINDENT;
                return this;
            }

            // else check for item right???
            if (point.x > m_x + m_width) {
                flags |= wxTREE_HITTEST_ONITEMRIGHT;
                return this;
            }

        }

        // if children are expanded, fall through to evaluate them
        if (m_isCollapsed) return (wxTreeListItem*) NULL;
    }

    // evaluate children
    size_t count = m_children.Count();
    for ( size_t n = 0; n < count; n++ )
    {
        wxTreeListItem *res = m_children[n]->HitTest(point, theCtrl,
                                                     flags, level + 1);
        if ( res != NULL )
            return res;
    }

    return (wxTreeListItem*) NULL;
}

// ALB
wxTreeListItem *wxTreeListItem::HitTest(const wxPoint& point,
                                        const wxTreeListMainWindow *theCtrl,
                                        int &flags, int& column, int level)
{
    column = theCtrl->GetMainColumn(); //-1;

    wxTreeListItem* res = HitTest(point, theCtrl, flags, level);
    if(!res) {
        column = -1;
        return res;
    }

    wxTreeListHeaderWindow* header_win = theCtrl->m_owner->GetHeaderWindow();
    if (point.x >= header_win->GetWidth())
        column = -1;
    else if(flags & wxTREE_HITTEST_ONITEMINDENT) {
        int x = 0;
        for(size_t i = 0; i < theCtrl->GetMainColumn(); ++i) {
            if (!header_win->GetColumnShown(i)) continue;
            int w = header_win->GetColumnWidth(i);
            if(point.x >= x && point.x < x+w) {
                flags ^= wxTREE_HITTEST_ONITEMINDENT;
                flags |= wxTREE_HITTEST_ONITEMCOLUMN;
                column = i;
                return res;
            }
        }
    }
    else if(flags & wxTREE_HITTEST_ONITEMRIGHT) {
        int x = 0;
        size_t i;
        for(i = 0; i < theCtrl->GetMainColumn()+1; ++i) {
            if (!header_win->GetColumnShown(i)) continue;
            x += header_win->GetColumnWidth(i);
        }
        for(i = theCtrl->GetMainColumn()+1; i < theCtrl->GetColumnCount(); ++i) {
            if (!header_win->GetColumnShown(i)) continue;
            int w = header_win->GetColumnWidth(i);
            if(point.x >= x && point.x < x+w) {
                flags ^= wxTREE_HITTEST_ONITEMRIGHT;
                flags |= wxTREE_HITTEST_ONITEMCOLUMN;
                column = i;
                return res;
            }
            x += w;
        }
    }

    return res;
}


int wxTreeListItem::GetCurrentImage() const
{
    int image = NO_IMAGE;
    if ( IsExpanded() )
    {
        if ( IsSelected() )
        {
            image = GetImage(wxTreeItemIcon_SelectedExpanded);
        }

        if ( image == NO_IMAGE )
        {
            // we usually fall back to the normal item, but try just the
            // expanded one (and not selected) first in this case
            image = GetImage(wxTreeItemIcon_Expanded);
        }
    }
    else // not expanded
    {
        if ( IsSelected() )
            image = GetImage(wxTreeItemIcon_Selected);
    }

    // maybe it doesn't have the specific image we want,
    // try the default one instead
    if ( image == NO_IMAGE ) image = GetImage();

    return image;
}

// ---------------------------------------------------------------------------
// wxTreeListMainWindow implementation
// ---------------------------------------------------------------------------

IMPLEMENT_DYNAMIC_CLASS(wxTreeListMainWindow, wxScrolledWindow)

BEGIN_EVENT_TABLE(wxTreeListMainWindow, wxScrolledWindow)
    EVT_PAINT          (wxTreeListMainWindow::OnPaint)
    EVT_MOUSE_EVENTS   (wxTreeListMainWindow::OnMouse)
    EVT_CHAR           (wxTreeListMainWindow::OnChar)
    EVT_SET_FOCUS      (wxTreeListMainWindow::OnSetFocus)
    EVT_KILL_FOCUS     (wxTreeListMainWindow::OnKillFocus)
    EVT_IDLE           (wxTreeListMainWindow::OnIdle)
    EVT_SCROLLWIN      (wxTreeListMainWindow::OnScroll)
END_EVENT_TABLE()


// ---------------------------------------------------------------------------
// construction/destruction
// ---------------------------------------------------------------------------

void wxTreeListMainWindow::Init()
{
    m_current = m_key_current = m_anchor = (wxTreeListItem *) NULL;
    m_hasFocus = FALSE;
    m_dirty = FALSE;

    m_lineHeight = LINEHEIGHT;
    m_indent = MININDENT; // min. indent
    m_linespacing = 4;
    m_imgWidth = 0, m_imgWidth2 = 0;
    m_imgHeight = 0, m_imgHeight2 = 0;

    m_hilightBrush = new wxBrush
                         (
                            wxSystemSettings::GetColour
                            (
                                wxSYS_COLOUR_HIGHLIGHT
                            ),
                            wxSOLID
                         );

    m_hilightUnfocusedBrush = new wxBrush
                              (
                                 wxSystemSettings::GetColour
                                 (
                                     wxSYS_COLOUR_BTNSHADOW
                                 ),
                                 wxSOLID
                              );

    m_imageListNormal = m_imageListButtons =
    m_imageListState = (wxImageList *) NULL;
    m_ownsImageListNormal = m_ownsImageListButtons =
    m_ownsImageListState = FALSE;

    m_dragCount = 0;
    m_isDragging = FALSE;
    m_dropTarget = m_oldSelection = (wxTreeListItem *)NULL;

    m_renameTimer = new wxTreeListRenameTimer( this );
    m_lastOnSame = FALSE;

    m_findTimer = new wxTimer (this, -1);

    m_underMouse = NULL;

#ifdef __WXMAC_CARBON__
    m_normalFont.MacCreateThemeFont( kThemeViewsFont ) ;
#else
    m_normalFont = wxSystemSettings::GetFont( wxSYS_DEFAULT_GUI_FONT );
#endif
    m_boldFont = wxFont( m_normalFont.GetPointSize(),
                         m_normalFont.GetFamily(),
                         m_normalFont.GetStyle(),
                         wxBOLD,
                         m_normalFont.GetUnderlined(),
                         m_normalFont.GetFaceName(),
                         m_normalFont.GetEncoding());
}


bool wxTreeListMainWindow::Create(wxTreeListCtrl *parent,
                                  wxWindowID id,
                                  const wxPoint& pos,
                                  const wxSize& size,
                                  long style,
                                  const wxValidator &validator,
                                  const wxString& name )
{
#ifdef __WXMAC__
    if ( !(style & wxTR_DONT_ADJUST_MAC))
    {
        int major,minor;
        wxGetOsVersion( &major, &minor );

        if (style & wxTR_HAS_BUTTONS) style |= wxTR_TWIST_BUTTONS;
        if (style & wxTR_HAS_BUTTONS) style &= ~wxTR_HAS_BUTTONS;