font_window.cpp

ncbi源码

/*
 * ===========================================================================
 * PRODUCTION $Log: font_window.cpp,v $
 * PRODUCTION Revision 1000.1  2004/06/01 20:52:14  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.3
 * PRODUCTION
 * ===========================================================================
 */

/*  $Id: font_window.cpp,v 1000.1 2004/06/01 20:52:14 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 "font_window.hpp"

BEGIN_NCBI_SCOPE

CFontWindow::CFontWindow(int x, int y, int w, int h, const char* label)
    : CGlCanvas2d(x, y, w, h)
{
    m_Camera.SetLayout(CGlCamera::eOrtho);
    m_Camera.SetLeftPlane  (0);
    m_Camera.SetRightPlane (w);
    m_Camera.SetTopPlane   (h);
    m_Camera.SetBottomPlane(0);

    m_Camera.SetNearPlane( 1.0f);
    m_Camera.SetFarPlane (-1.0f);
}


void CFontWindow::resize(int x, int y, int w, int h)
{
    CGlCanvas2d::resize(x, y, w, h);
    m_Camera.SetRightPlane(w);
    m_Camera.SetTopPlane  (h);
}


void CFontWindow::draw()
{
    x_DrawBackground(1.0f, 1.0f, 1.0f);
    x_SetupView();

    if ( !m_Font ) {
        SetFont(CGlBitmapFont::eHelvetica10);
    }

    glColor3f(0.0f, 0.0f, 0.0f);

    int panel_x = 10;
    int panel_y = 10;
    int panel_wid = w() - 20;
    int panel_ht = (h() - 20) / 4;

    int text_ht = m_Font->TextHeight();
    string str;

    //
    // panel 1: centered
    //

    str = "Centered text in (";
    str += NStr::IntToString(panel_x) + ", ";
    str += NStr::IntToString(panel_y) + ", ";
    str += NStr::IntToString(panel_x + panel_wid) + ", ";
    str += NStr::IntToString(panel_y + panel_ht ) + ")";
    str += " text height = " + NStr::IntToString(text_ht);
    str += " (and a tag to make it long)";
    m_Font->TextOut(panel_x, panel_y, panel_wid, panel_ht,
                    str.c_str(), FL_ALIGN_CENTER);

    glBegin(GL_LINE_LOOP);
    glVertex2f(panel_x,             panel_y);
    glVertex2f(panel_x + panel_wid, panel_y);
    glVertex2f(panel_x + panel_wid, panel_y + panel_ht);
    glVertex2f(panel_x,             panel_y + panel_ht);
    glEnd();

    //
    // panel 2: right justified
    //

    panel_y += panel_ht;

    str = "Right justified text in (";
    str += NStr::IntToString(panel_x) + ", ";
    str += NStr::IntToString(panel_y) + ", ";
    str += NStr::IntToString(panel_x + panel_wid) + ", ";
    str += NStr::IntToString(panel_y + panel_ht ) + ")";
    str += " (and a tag to make it long)";
    m_Font->TextOut(panel_x, panel_y, panel_wid, panel_ht,
                    str.c_str(), FL_ALIGN_RIGHT);

    glBegin(GL_LINE_LOOP);
    glVertex2f(panel_x,             panel_y);
    glVertex2f(panel_x + panel_wid, panel_y);
    glVertex2f(panel_x + panel_wid, panel_y + panel_ht);
    glVertex2f(panel_x,             panel_y + panel_ht);
    glEnd();

    //
    // panel 3: top-left justified
    //

    panel_y += panel_ht;

    str = "Top-Left justified text in (";
    str += NStr::IntToString(panel_x) + ", ";
    str += NStr::IntToString(panel_y) + ", ";
    str += NStr::IntToString(panel_x + panel_wid) + ", ";
    str += NStr::IntToString(panel_y + panel_ht ) + ")";
    str += " (and blunt-end truncation)";
    m_Font->TextOut(panel_x, panel_y, panel_wid, panel_ht,
                    str.c_str(), FL_ALIGN_TOP | FL_ALIGN_LEFT,
                    CGlBitmapFont::eTruncate_Empty);

    glBegin(GL_LINE_LOOP);
    glVertex2f(panel_x,             panel_y);
    glVertex2f(panel_x + panel_wid, panel_y);
    glVertex2f(panel_x + panel_wid, panel_y + panel_ht);
    glVertex2f(panel_x,             panel_y + panel_ht);
    glEnd();

    //
    // panel 4: bottom-right justified
    //

    panel_y += panel_ht;

    str = "Bottom-Right justified text in (";
    str += NStr::IntToString(panel_x) + ", ";
    str += NStr::IntToString(panel_y) + ", ";
    str += NStr::IntToString(panel_x + panel_wid) + ", ";
    str += NStr::IntToString(panel_y + panel_ht ) + ")";
    str += " (and a tag to make it long)";
    m_Font->TextOut(panel_x, panel_y, panel_wid, panel_ht,
                    str.c_str(), FL_ALIGN_BOTTOM | FL_ALIGN_RIGHT);

    glBegin(GL_LINE_LOOP);
    glVertex2f(panel_x,             panel_y);
    glVertex2f(panel_x + panel_wid, panel_y);
    glVertex2f(panel_x + panel_wid, panel_y + panel_ht);
    glVertex2f(panel_x,             panel_y + panel_ht);
    glEnd();
}


void CFontWindow::SetFont(CGlBitmapFont::EFont font)
{
    make_current();
    m_Font.Reset(new CGlBitmapFont(font));
}


END_NCBI_SCOPE


/*
 * ===========================================================================
 * $Log: font_window.cpp,v $
 * Revision 1000.1  2004/06/01 20:52:14  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.3
 *
 * Revision 1.3  2004/05/21 22:27:45  gorelenk
 * Added PCH ncbi_pch.hpp
 *
 * Revision 1.2  2003/09/29 15:44:15  dicuccio
 * Inverted Y axis coordinate (made OpenGL normal)
 *
 * Revision 1.1  2003/09/17 16:22:03  dicuccio
 * Initial revision
 *
 * ===========================================================================
 */