manager.cpp

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                              const wxDockInfoArray& src_docks,
                              const wxPaneInfoArray& src_panes)
{
    dest_docks = src_docks;
    dest_panes = src_panes;
    int i, j, k, dock_count, pc1, pc2;
    for (i = 0, dock_count = dest_docks.GetCount(); i < dock_count; ++i)
    {
        wxDockInfo& dock = dest_docks.Item(i);
        for (j = 0, pc1 = dock.panes.GetCount(); j < pc1; ++j)
            for (k = 0, pc2 = src_panes.GetCount(); k < pc2; ++k)
                if (dock.panes.Item(j) == &src_panes.Item(k))
                    dock.panes.Item(j) = &dest_panes.Item(k);
    }
}

// GetMaxLayer() is an internal function which returns
// the highest layer inside the specified dock
static int GetMaxLayer(const wxDockInfoArray& docks, int dock_direction)
{
    int i, dock_count, max_layer = 0;
    for (i = 0, dock_count = docks.GetCount(); i < dock_count; ++i)
    {
        wxDockInfo& dock = docks.Item(i);
        if (dock.dock_direction == dock_direction &&
            dock.dock_layer > max_layer && !dock.fixed)
                max_layer = dock.dock_layer;
    }
    return max_layer;
}


// GetMaxRow() is an internal function which returns
// the highest layer inside the specified dock
static int GetMaxRow(const wxPaneInfoArray& panes, int direction, int layer)
{
    int i, pane_count, max_row = 0;
    for (i = 0, pane_count = panes.GetCount(); i < pane_count; ++i)
    {
        wxPaneInfo& pane = panes.Item(i);
        if (pane.dock_direction == direction &&
            pane.dock_layer == layer && 
            pane.dock_row > max_row)
                max_row = pane.dock_row;
    }
    return max_row;
}



// DoInsertDockLayer() is an internal function that inserts a new dock
// layer by incrementing all existing dock layer values by one
static void DoInsertDockLayer(wxPaneInfoArray& panes,
                              int dock_direction,
                              int dock_layer)
{
    int i, pane_count;
    for (i = 0, pane_count = panes.GetCount(); i < pane_count; ++i)
    {
        wxPaneInfo& pane = panes.Item(i);
        if (!pane.IsFloating() &&
            pane.dock_direction == dock_direction &&
            pane.dock_layer >= dock_layer)
                pane.dock_layer++;
    }
}

// DoInsertDockLayer() is an internal function that inserts a new dock
// row by incrementing all existing dock row values by one
static void DoInsertDockRow(wxPaneInfoArray& panes,
                            int dock_direction,
                            int dock_layer,
                            int dock_row)
{
    int i, pane_count;
    for (i = 0, pane_count = panes.GetCount(); i < pane_count; ++i)
    {
        wxPaneInfo& pane = panes.Item(i);
        if (!pane.IsFloating() &&
            pane.dock_direction == dock_direction &&
            pane.dock_layer == dock_layer &&
            pane.dock_row >= dock_row)
                pane.dock_row++;
    }
}

// DoInsertDockLayer() is an internal function that inserts a space for 
// another dock pane by incrementing all existing dock row values by one
static void DoInsertPane(wxPaneInfoArray& panes,
                         int dock_direction,
                         int dock_layer,
                         int dock_row,
                         int dock_pos)
{
    int i, pane_count;
    for (i = 0, pane_count = panes.GetCount(); i < pane_count; ++i)
    {
        wxPaneInfo& pane = panes.Item(i);
        if (!pane.IsFloating() &&
            pane.dock_direction == dock_direction &&
            pane.dock_layer == dock_layer &&
            pane.dock_row == dock_row &&
            pane.dock_pos >= dock_pos)
                pane.dock_pos++;
    }
}

// FindDocks() is an internal function that returns a list of docks which meet
// the specified conditions in the parameters and returns a sorted array
// (sorted by layer and then row)
static void FindDocks(wxDockInfoArray& docks,
                      int dock_direction,
                      int dock_layer,
                      int dock_row,
                      wxDockInfoPtrArray& arr)
{
    int begin_layer = dock_layer;
    int end_layer = dock_layer;
    int begin_row = dock_row;
    int end_row = dock_row;
    int dock_count = docks.GetCount();
    int layer, row, i, max_row = 0, max_layer = 0;

    // discover the maximum dock layer and the max row
    for (i = 0; i < dock_count; ++i)
    {
        max_row = wxMax(max_row, docks.Item(i).dock_row);
        max_layer = wxMax(max_layer, docks.Item(i).dock_layer);
    }
    
    // if no dock layer was specified, search all dock layers
    if (dock_layer == -1)
    {
        begin_layer = 0;
        end_layer = max_layer;
    }
    
    // if no dock row was specified, search all dock row
    if (dock_row == -1)
    {
        begin_row = 0;
        end_row = max_row;
    }

    arr.Clear();

    for (layer = begin_layer; layer <= end_layer; ++layer)
        for (row = begin_row; row <= end_row; ++row)
            for (i = 0; i < dock_count; ++i)
            {
                wxDockInfo& d = docks.Item(i);
                if (dock_direction == -1 || dock_direction == d.dock_direction)
                {
                    if (d.dock_layer == layer && d.dock_row == row)
                        arr.Add(&d);
                }
            }
}

// FindPaneInDock() looks up a specified window pointer inside a dock.
// If found, the corresponding wxPaneInfo pointer is returned, otherwise NULL.
static wxPaneInfo* FindPaneInDock(const wxDockInfo& dock, wxWindow* window)
{
    int i, count = dock.panes.GetCount();
    for (i = 0; i < count; ++i)
    {
        wxPaneInfo* p = dock.panes.Item(i);
        if (p->window == window)
            return p;
    }
    return NULL;
}

// RemovePaneFromDocks() removes a pane window from all docks
// with a possible exception specified by parameter "except"
static void RemovePaneFromDocks(wxDockInfoArray& docks,
                                wxPaneInfo& pane,
                                wxDockInfo* except = NULL)
{
    int i, dock_count;
    for (i = 0, dock_count = docks.GetCount(); i < dock_count; ++i)
    {
        wxDockInfo& d = docks.Item(i);
        if (&d == except)
            continue;
        wxPaneInfo* pi = FindPaneInDock(d, pane.window);
        if (pi)
            d.panes.Remove(pi);
    }
}

// RenumberDockRows() takes a dock and assigns sequential numbers
// to existing rows.  Basically it takes out the gaps; so if a
// dock has rows with numbers 0,2,5, they will become 0,1,2
static void RenumberDockRows(wxDockInfoPtrArray& docks)
{
    int i, dock_count, j, pane_count;
    for (i = 0, dock_count = docks.GetCount(); i < dock_count; ++i)
    {
        wxDockInfo& dock = *docks.Item(i);
        dock.dock_row = i;
        for (j = 0, pane_count = dock.panes.GetCount(); j < pane_count; ++j)
            dock.panes.Item(j)->dock_row = i;
    }
}



static void SetActivePane(wxPaneInfoArray& panes, wxWindow* active_pane)
{
    int i, pane_count;
    for (i = 0, pane_count = panes.GetCount(); i < pane_count; ++i)
    {
        wxPaneInfo& pane = panes.Item(i);
        pane.state &= ~wxPaneInfo::optionActive;
        if (pane.window == active_pane)
            pane.state |= wxPaneInfo::optionActive;
    }
}


// this function is used to sort panes by dock position
static int PaneSortFunc(wxPaneInfo** p1, wxPaneInfo** p2)
{
    return ((*p1)->dock_pos < (*p2)->dock_pos) ? -1 : 1;
}


// -- wxFrameManager class implementation --


BEGIN_EVENT_TABLE(wxFrameManager, wxEvtHandler)
    EVT_AUI_PANEBUTTON(wxFrameManager::OnPaneButton)
    EVT_PAINT(wxFrameManager::OnPaint)
    EVT_ERASE_BACKGROUND(wxFrameManager::OnEraseBackground)
    EVT_SIZE(wxFrameManager::OnSize)
    EVT_SET_CURSOR(wxFrameManager::OnSetCursor)
    EVT_LEFT_DOWN(wxFrameManager::OnLeftDown)
    EVT_LEFT_UP(wxFrameManager::OnLeftUp)
    EVT_MOTION(wxFrameManager::OnMotion)
    EVT_LEAVE_WINDOW(wxFrameManager::OnLeaveWindow)
    EVT_CHILD_FOCUS(wxFrameManager::OnChildFocus)
    EVT_TIMER(101, wxFrameManager::OnHintFadeTimer)
END_EVENT_TABLE()


wxFrameManager::wxFrameManager(wxFrame* frame, unsigned int flags)
{
    m_action = actionNone;
    m_last_mouse_move = wxPoint();
    m_hover_button = NULL;
    m_art = new wxDefaultDockArt;
    m_hint_wnd = NULL;
    m_flags = flags;

    if (frame)
    {
        SetFrame(frame);
    }
}

wxFrameManager::~wxFrameManager()
{
    delete m_art;
}

// GetPane() looks up a wxPaneInfo structure based
// on the supplied window pointer.  Upon failure, GetPane()
// returns an empty wxPaneInfo, a condition which can be checked
// by calling wxPaneInfo::IsOk().
//
// The pane info's structure may then be modified.  Once a pane's
// info is modified, wxFrameManager::Update() must be called to
// realize the changes in the UI.

wxPaneInfo& wxFrameManager::GetPane(wxWindow* window)
{
    int i, pane_count;
    for (i = 0, pane_count = m_panes.GetCount(); i < pane_count; ++i)
    {
        wxPaneInfo& p = m_panes.Item(i);
        if (p.window == window)
            return p;
    }
    return wxNullPaneInfo;
}

// this version of GetPane() looks up a pane based on a
// 'pane name', see above comment for more info
wxPaneInfo& wxFrameManager::GetPane(const wxString& name)
{
    int i, pane_count;
    for (i = 0, pane_count = m_panes.GetCount(); i < pane_count; ++i)
    {
        wxPaneInfo& p = m_panes.Item(i);
        if (p.name == name)
            return p;
    }
    return wxNullPaneInfo;
}

// GetAllPanes() returns a reference to all the pane info structures
wxPaneInfoArray& wxFrameManager::GetAllPanes()
{
    return m_panes;
}

// HitTest() is an internal function which determines
// which UI item the specified coordinates are over
// (x,y) specify a position in client coordinates
wxDockUIPart* wxFrameManager::HitTest(int x, int y)
{
    wxDockUIPart* result = NULL;

    int i, part_count;
    for (i = 0, part_count = m_uiparts.GetCount(); i < part_count; ++i)
    {
        wxDockUIPart* item = &m_uiparts.Item(i);
        
        // we are not interested in typeDock, because this space 
        // isn't used to draw anything, just for measurements;
        // besides, the entire dock area is covered with other
        // rectangles, which we are interested in.
        if (item->type == wxDockUIPart::typeDock)
            continue;
        
        // if we already have a hit on a more specific item, we are not
        // interested in a pane hit.  If, however, we don't already have
        // a hit, returning a pane hit is necessary for some operations
        if ((item->type == wxDockUIPart::typePane ||
            item->type == wxDockUIPart::typePaneBorder) && result)
            continue;
           
        // if the point is inside the rectangle, we have a hit
        if (item->rect.Inside(x,y))
            result = item;
    }
    
    return result;
}


// SetFlags() and GetFlags() allow the owner to set various
// options which are global to wxFrameManager
void wxFrameManager::SetFlags(unsigned int flags)
{
    m_flags = flags;
}

unsigned int wxFrameManager::GetFlags() const
{
    return m_flags;
}


// SetFrame() is usually called once when the frame
// manager class is being initialized.  "frame" specifies
// the frame which should be managed by the frame mananger
void wxFrameManager::SetFrame(wxFrame* frame)
{
    wxASSERT_MSG(frame, wxT("specified frame must be non-NULL"));

    m_frame = frame;
    m_frame->PushEventHandler(this);

#if wxUSE_MDI
    // if the owner is going to manage an MDI parent frame,
    // we need to add the MDI client window as the default
    // center pane

    if (frame->IsKindOf(CLASSINFO(wxMDIParentFrame)))
    {
        wxMDIParentFrame* mdi_frame = (wxMDIParentFrame*)frame;
        wxMDIClientWindow* client_window = mdi_frame->GetClientWindow();

        wxASSERT_MSG(client_window, wxT("Client window is NULL!"));

        AddPane(client_window,
                wxPaneInfo().Name(wxT("mdiclient")).
                CenterPane().PaneBorder(false));
    }
#endif
}


// UnInit() must be called, usually in the destructor
// of the frame class.   If it is not called, usually this
// will result in a crash upon program exit
void wxFrameManager::UnInit()
{
    m_frame->RemoveEventHandler(this);
}

// GetFrame() returns the frame pointer being managed by wxFrameManager
wxFrame* wxFrameManager::GetFrame() const
{
    return m_frame;
}

wxDockArt* wxFrameManager::GetArtProvider() const
{
    return m_art;
}

void wxFrameManager::ProcessMgrEvent(wxFrameManagerEvent& event)
{
    // first, give the owner frame a chance to override
    if (m_frame)