frame.cpp

来自「ncbi源码」· C++ 代码 · 共 242 行

/*
 * ===========================================================================
 * PRODUCTION $Log: frame.cpp,v $
 * PRODUCTION Revision 1000.1  2004/06/01 21:09:06  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.2
 * PRODUCTION
 * ===========================================================================
 */

/*  $Id: frame.cpp,v 1000.1 2004/06/01 21:09:06 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/fl/frame.hpp>
#include <FL/Fl.H>
#include <FL/fl_draw.H>


BEGIN_NCBI_SCOPE


//////////////////////////////////////////////////////////////////////////
//
// CFlFrame
//

CFlFrame::CFlFrame(int x, int y, int w, int h, const char* label)
    : Fl_Group(x, y, w, h, label)
{
}


int CFlFrame::align() const
{
    return Fl_Group::align();
}


void CFlFrame::align(int a)
{
    Fl_Group::align(a | FL_ALIGN_INSIDE);
}


void CFlFrame::draw_label()
{
    // save and restore our font for rendering
    int font_face = fl_font();
    int font_size = fl_size();

    int pos_x = x();
    int pos_y = y();

    fl_font(labelfont(), labelsize());
    int text_wid = (int)fl_width(label());
    int text_ht = labelsize();
    _TRACE("text size: " << text_wid << ", " << text_ht);

    // make sure we appear correctly
    // the default is always the top
    if (align() & FL_ALIGN_BOTTOM) {
        pos_y += h() - (text_ht / 2) - 1;
    } else {
        pos_y -= (text_ht - 1) / 2;
    }

    int offs = 6;
    if (align() & FL_ALIGN_LEFT) {
        // left justified
        pos_x += offs;
    } else if (align() & FL_ALIGN_RIGHT) {
        // right-justified
        pos_x += (w() - text_wid - offs);
    } else {
        // centered
        pos_x += (w() - text_wid) / 2;
    }

    draw_label(pos_x, pos_y, text_wid, text_ht);
    fl_font(font_face, font_size);
}


void CFlFrame::draw_label(int x, int y, int w, int h)
{
    fl_rectf(x - 2, y, w + 4, h, color());
    fl_color(labelcolor());
    fl_draw(label(), x, y, w, h, FL_ALIGN_CENTER);
}


void CFlFrame::draw()
{
    // call draw_children(), as we handle the rendering of the frame and label
    if (damage() & ~FL_DAMAGE_CHILD) {
        // label and frame get drawn
        draw_box();
        draw_label();
    }

    draw_children();
}


//////////////////////////////////////////////////////////////////////////
//
// CFlEnabledFrame
//


static void s_toggle_frame(Fl_Widget* w, void* data)
{
    CFlEnabledFrame* fw = static_cast<CFlEnabledFrame*>(data);
    if (fw) {
        fw->ToggleEnabled();
    }
}


CFlEnabledFrame::CFlEnabledFrame(int x, int y, int w, int h, const char* label)
    : CFlFrame(x, y, w, h, label)
    , m_Button(x, y, w, h)
{
    m_Button.label(label);
    m_Button.box(FL_FLAT_BOX);
    m_Button.callback(s_toggle_frame, this);
}


const char* CFlEnabledFrame::label() const
{
    return m_Button.label();
}


void CFlEnabledFrame::label(const char* l)
{
    m_Button.label(l);
}


void CFlEnabledFrame::draw_label(int x, int y, int w, int h)
{
    w += 20;
    if (align() & FL_ALIGN_RIGHT) {
        x -= 20;
    }
    m_Button.resize(x, y, w, h);
    m_Button.redraw();
}


void CFlEnabledFrame::SetEnabled(bool b)
{
    if (b) {
        for (int i = 0;  i < children();  ++i) {
            if (child(i) != &m_Button) {
                child(i)->activate();
            }
        }
    } else {
        for (int i = 0;  i < children();  ++i) {
            if (child(i) != &m_Button) {
                child(i)->deactivate();
            }
        }
    }
    m_Button.value(b);
    m_Button.redraw();
}


void CFlEnabledFrame::ToggleEnabled()
{
    SetEnabled( !m_Button.value() );
    m_Button.value( !m_Button.value() );
    /**
    if (m_Button.value()) {
        for (int i = 0;  i < children();  ++i) {
            if (child(i) != &m_Button) {
                child(i)->deactivate();
            }
        }
    } else {
        for (int i = 0;  i < children();  ++i) {
            if (child(i) != &m_Button) {
                child(i)->activate();
            }
        }
    }
    **/
    Fl::focus(this);
}




END_NCBI_SCOPE

/*
 * ===========================================================================
 * $Log: frame.cpp,v $
 * Revision 1000.1  2004/06/01 21:09:06  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  2003/09/29 15:25:39  dicuccio
 * Initial revision
 *
 * ===========================================================================
 */