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/////////////////////////////////////////////////////////////////////////////

// Name:        splittree.h

// Purpose:     Classes to achieve a remotely-scrolled tree in a splitter

//              window that can be scrolled by a scrolled window higher in the

//              hierarchy

// Author:      Julian Smart

// Modified by:

// Created:     8/7/2000

// RCS-ID:      $Id: splittree.h,v 1.3 2001/06/11 14:22:31 julians Exp $

// Copyright:   (c) Julian Smart

//

// This program is part of the eCos host tools.

//

// This program is free software; you can redistribute it and/or modify it

// under the terms of the GNU General Public License as published by the Free

// Software Foundation; either version 2 of the License, or (at your option)

// any later version.

//

// This program is distributed in the hope that it will be useful, but WITHOUT

// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

// more details.

//

// You should have received a copy of the GNU General Public License along with

// this program; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

//

/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_SPLITTREE_H_

#define _WX_SPLITTREE_H_

#ifdef __GNUG__

        #pragma interface "splittree.cpp"

#endif

// Set this to 1 to use generic tree control (doesn't yet work properly)

#define USE_GENERIC_TREECTRL 0

#include "wx/wx.h"

#include "wx/treectrl.h"

#include "wx/splitter.h"

#include "ecscrolwin.h"

#if USE_GENERIC_TREECTRL

#include "wx/generic/treectlg.h"

#ifndef wxTreeCtrl

#define wxTreeCtrl wxGenericTreeCtrl

#define sm_classwxTreeCtrl sm_classwxGenericTreeCtrl

#endif

#endif

class wxRemotelyScrolledTreeCtrl;

class wxThinSplitterWindow;

class wxSplitterScrolledWindow;

/*

 * wxRemotelyScrolledTreeCtrl

 *

 * This tree control disables its vertical scrollbar and catches scroll

 * events passed by a scrolled window higher in the hierarchy.

 * It also updates the scrolled window vertical scrollbar as appropriate.

 */

class wxRemotelyScrolledTreeCtrl: public wxTreeCtrl

{

        DECLARE_CLASS(wxRemotelyScrolledTreeCtrl)

public:

    wxRemotelyScrolledTreeCtrl(wxWindow* parent, wxWindowID id, const wxPoint& pt = wxDefaultPosition,

        const wxSize& sz = wxDefaultSize, long style = wxTR_HAS_BUTTONS);

        ~wxRemotelyScrolledTreeCtrl();

//// Events

        void OnSize(wxSizeEvent& event);

        void OnExpand(wxTreeEvent& event);

    void OnScroll(wxScrollWinEvent& event);

//// Overrides

    // Override this in case we're using the generic tree control.

    // Calls to this should disable the vertical scrollbar.

    // Number of pixels per user unit (0 or -1 for no scrollbar)

    // Length of virtual canvas in user units

    // Length of page in user units

    virtual void SetScrollbars(int pixelsPerUnitX, int pixelsPerUnitY,

                             int noUnitsX, int noUnitsY,

                             int xPos = 0, int yPos = 0,

                             bool noRefresh = FALSE );

    // In case we're using the generic tree control.

    // Get the view start

    virtual void GetViewStart(int *x, int *y) const;

    // In case we're using the generic tree control.

    virtual void PrepareDC(wxDC& dc);

    // In case we're using the generic tree control.

    virtual int GetScrollPos(int orient) const;

//// Helpers

        void HideVScrollbar();

        // Calculate the tree overall size so we can set the scrollbar

        // correctly

        void CalcTreeSize(wxRect& rect);

        void CalcTreeSize(const wxTreeItemId& id, wxRect& rect);

        // Adjust the containing wxScrolledWindow's scrollbars appropriately

        void AdjustRemoteScrollbars();

        // Find the scrolled window that contains this control

        ecScrolledWindow* GetScrolledWindow() const;

    // Scroll to the given line (in scroll units where each unit is

    // the height of an item)

    void ScrollToLine(int posHoriz, int posVert);

//// Accessors

        // The companion window is one which will get notified when certain

        // events happen such as node expansion

        void SetCompanionWindow(wxWindow* companion) { m_companionWindow = companion; }

        wxWindow* GetCompanionWindow() const { return m_companionWindow; }

    DECLARE_EVENT_TABLE()

protected:

        wxWindow*       m_companionWindow;

};

/*

 * wxTreeCompanionWindow

 *

 * A window displaying values associated with tree control items.

 */

class wxTreeCompanionWindow: public wxWindow

{

public:

    DECLARE_CLASS(wxTreeCompanionWindow)

    wxTreeCompanionWindow(wxWindow* parent, wxWindowID id = -1,

      const wxPoint& pos = wxDefaultPosition,

      const wxSize& sz = wxDefaultSize,

      long style = 0);

//// Overrides

        virtual void DrawItem(wxDC& dc, wxTreeItemId id, const wxRect& rect);

//// Events

        void OnPaint(wxPaintEvent& event);

    void OnScroll(wxScrollWinEvent& event);

        void OnExpand(wxTreeEvent& event);

//// Operations

//// Accessors

        wxRemotelyScrolledTreeCtrl* GetTreeCtrl() const { return m_treeCtrl; };

        void SetTreeCtrl(wxRemotelyScrolledTreeCtrl* treeCtrl) { m_treeCtrl = treeCtrl; }

//// Data members

protected:

        wxRemotelyScrolledTreeCtrl*     m_treeCtrl;

    DECLARE_EVENT_TABLE()

};

/*

 * wxThinSplitterWindow

 *

 * Implements a splitter with a less obvious sash

 * than the usual one.

 */

class wxThinSplitterWindow: public wxSplitterWindow

{

public:

    DECLARE_DYNAMIC_CLASS(wxThinSplitterWindow)

    wxThinSplitterWindow(wxWindow* parent, wxWindowID id = -1,

      const wxPoint& pos = wxDefaultPosition,

      const wxSize& sz = wxDefaultSize,

      long style = wxSP_3D | wxCLIP_CHILDREN);

//// Overrides

    void SizeWindows();

    // Tests for x, y over sash. Overriding this allows us to increase

    // the tolerance.

    bool SashHitTest(int x, int y, int tolerance = 2);

        void DrawSash(wxDC& dc);

//// Events

    void OnSize(wxSizeEvent& event);

//// Operations

//// Accessors

//// Data members

protected:

    DECLARE_EVENT_TABLE()

};

/*

 * wxSplitterScrolledWindow

 *

 * This scrolled window is aware of the fact that one of its

 * children is a splitter window. It passes on its scroll events

 * (after some processing) to both splitter children for them

 * scroll appropriately.

 */

class wxSplitterScrolledWindow: public ecScrolledWindow

{

public:

    DECLARE_DYNAMIC_CLASS(wxSplitterScrolledWindow)

    wxSplitterScrolledWindow(wxWindow* parent, wxWindowID id = -1,

      const wxPoint& pos = wxDefaultPosition,

      const wxSize& sz = wxDefaultSize,

      long style = 0);

//// Overrides

//// Events

    void OnScroll(wxScrollWinEvent& event);

    void OnSize(wxSizeEvent& event);

//// Operations

//// Accessors

//// Data members

public:

    DECLARE_EVENT_TABLE()

};

#endif

        // _SPLITTREE_H_