dock.cpp

ncbi源码

/*
 * ===========================================================================
 * PRODUCTION $Log: dock.cpp,v $
 * PRODUCTION Revision 1000.1  2004/06/01 21:08:19  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.2
 * PRODUCTION
 * ===========================================================================
 */

/*  $Id: dock.cpp,v 1000.1 2004/06/01 21:08:19 gouriano Exp $
 * ===========================================================================
 *
 *                            PUBLIC DOMAIN NOTICE
 *               National Center for Biotechnology Information
 *
 *  This software/database is a "United States Government Work" under the
 *  terms of the United States Copyright Act.  It was written as part of
 *  the author's official duties as a United States Government employee and
 *  thus cannot be copyrighted.  This software/database is freely available
 *  to the public for use. The National Library of Medicine and the U.S.
 *  Government have not placed any restriction on its use or reproduction.
 *
 *  Although all reasonable efforts have been taken to ensure the accuracy
 *  and reliability of the software and data, the NLM and the U.S.
 *  Government do not and cannot warrant the performance or results that
 *  may be obtained by using this software or data. The NLM and the U.S.
 *  Government disclaim all warranties, express or implied, including
 *  warranties of performance, merchantability or fitness for any particular
 *  purpose.
 *
 *  Please cite the author in any work or product based on this material.
 *
 * ===========================================================================
 *
 * Authors:  Mike DiCuccio
 *
 * File Description:
 *
 */

#include <ncbi_pch.hpp>
#include <gui/widgets/dock/dock.hpp>
#include <math.h>
#include "dock_frame.hpp"


BEGIN_NCBI_SCOPE


CDockWidget::CDockWidget(int x, int y, int w, int h, const char* label)
    : Fl_Tile(x, y, w, h, label)
{
}


static inline void s_Scale(size_t old_min, size_t old_max,
                           size_t new_min, size_t new_max,
                           size_t& val)
{
    _ASSERT(val >= old_min  &&  val <= old_max);
    float fact = float (val - old_min) / float (old_max - old_min);
    val = size_t(new_min + (new_max - new_min) * fact);
}


void CDockWidget::Dock(Fl_Widget* widget, EDockPosition pos, bool owner)
{
    if ( !widget ) {
        return;
    }

    size_t child_x = x();
    size_t child_y = y();
    size_t child_w = w();
    size_t child_h = h();

    widget->hide();
    Fl_Widget* frame = x_WidgetToDockFrame(widget, owner);

    _TRACE("docking widget: " << widget);
    if (children() != 0) {
        switch (pos) {
        case eDock_Top:
            {{
                child_h /= (children() + 1);

                // iterate our children and resize as needed
                for (size_t i = 0;  i < children();  ++i) {
                    Fl_Widget* ch = child(i);

                    size_t this_y1 = ch->y();
                    size_t this_y2 = ch->y() + ch->h();

                    s_Scale(y(), y() + h(), y() + child_h, y() + h(),
                            this_y1);
                    s_Scale(y(), y() + h(), y() + child_h, y() + h(),
                            this_y2);

                    ch->resize(ch->x(), this_y1, ch->w(), this_y2 - this_y1);
                }
            }}
            break;

        case eDock_Bottom:
            {{
                child_h /= (children() + 1);
                child_y += h() - child_h;

                // iterate our children and resize as needed
                for (size_t i = 0;  i < children();  ++i) {
                    Fl_Widget* ch = child(i);

                    size_t this_y1 = ch->y();
                    size_t this_y2 = ch->y() + ch->h();

                    s_Scale(y(), y() + h(), y(), child_y, this_y1);
                    s_Scale(y(), y() + h(), y(), child_y, this_y2);

                    ch->resize(ch->x(), this_y1, ch->w(), this_y2 - this_y1);
                }
            }}
            break;

        case eDock_Right:
            {{
                child_w /= (children() + 1);
                child_x += w() - child_w;

                // iterate our children and resize as needed
                for (size_t i = 0;  i < children();  ++i) {
                    Fl_Widget* ch = child(i);

                    size_t this_x1 = ch->x();
                    size_t this_x2 = ch->x() + ch->w();

                    s_Scale(x(), x() + w(), x(), child_x, this_x1);
                    s_Scale(x(), x() + w(), x(), child_x, this_x2);

                    ch->resize(this_x1, ch->y(), this_x2 - this_x1, ch->h());
                }
            }}
            break;

        case eDock_Left:
            {{
                child_w /= (children() + 1);

                // iterate our children and resize as needed
                for (size_t i = 0;  i < children();  ++i) {
                    Fl_Widget* ch = child(i);

                    size_t this_x1 = ch->x();
                    size_t this_x2 = ch->x() + ch->w();

                    s_Scale(x(), x() + w(), x() + child_w, x() + w(), this_x1);
                    s_Scale(x(), x() + w(), x() + child_w, x() + w(), this_x2);

                    ch->resize(this_x1, ch->y(), this_x2 - this_x1, ch->h());
                }
            }}
            break;

        default:
            _TRACE("unhandled dock position");
            break;
        }
    }

    // now, move the current widget and add
    frame->resize(child_x, child_y, child_w, child_h);
    add(frame);
    resizable(NULL);
    frame->show();
    widget->show();
    redraw();

    //...and add our dock info to our list
    SDockInfo info;
    info.widget = widget;
    info.frame  = frame;
    info.pos    = pos;
    m_DockInfo.push_back(info);
}


void CDockWidget::Undock(Fl_Widget* widget)
{
    _TRACE("un-docking widget: " << widget);
    NON_CONST_ITERATE (TDockInfo, iter, m_DockInfo) {
        if (iter->widget == widget) {
            m_DockInfo.erase(iter);
            break;
        }
    }

    // remove all of our child widgets and re-add them
    while (children()) {
        remove(child(0));
    }

    TDockInfo temp;
    temp.swap(m_DockInfo);
    ITERATE (TDockInfo, iter, temp) {
        Dock(iter->widget, iter->pos);
    }
}


Fl_Widget* CDockWidget::x_WidgetToDockFrame(Fl_Widget* widget, bool owner)
{
    auto_ptr<CDockFrame> frame
        (new CDockFrame(this,
                        widget->x(), widget->y(), widget->w(), widget->h()));
    frame->Attach(widget, owner);
    return frame.release();
}


END_NCBI_SCOPE


/*
 * ===========================================================================
 * $Log: dock.cpp,v $
 * Revision 1000.1  2004/06/01 21:08:19  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.2
 *
 * Revision 1.2  2004/05/21 22:27:53  gorelenk
 * Added PCH ncbi_pch.hpp
 *
 * Revision 1.1  2004/01/08 16:45:30  dicuccio
 * Initial revision
 *
 * ===========================================================================
 */