tt_window.cpp

来自「ncbi源码」· C++ 代码 · 共 342 行

/*
 * ===========================================================================
 * PRODUCTION $Log: tt_window.cpp,v $
 * PRODUCTION Revision 1000.1  2004/06/01 21:10:29  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.2
 * PRODUCTION
 * ===========================================================================
 */

/*  $Id: tt_window.cpp,v 1000.1 2004/06/01 21:10:29 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 "tt_window.hpp"

#include <gui/opengl/glutils.hpp>
#include <math.h>

BEGIN_NCBI_SCOPE


static const int s_Border = 10;


CTTWindow::CTTWindow(int x, int y, int w, int h, const char* label)
    : CGlCanvas2d(x, y, w, h, label),
      m_Font(CGlBitmapFont::eHelvetica12)
{
    m_bActiveTooltip = false; // change this to see the difference

    if(m_bActiveTooltip)
        m_Tooltip.EnableActiveMode(static_cast<ITooltipClient*>(this));
}


void CTTWindow::draw()
{
    glClearColor(1.0f, 1.0f, 1.0f, 0.0f);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    glOrtho(0, w(), h(), 0, 1, -1);

    x_RenderFirstRow();
    x_RenderSecondRow();
    x_RenderThirdRow();

    CGlUtils::CheckGlError();
}

static int kRowH = 80;
static int kRowSpace = 5;

static int kButtons = 12;
static int kButtonSize = 22;
static int kButtonSpace = 4;

    
void CTTWindow::x_RenderFirstRow()
{
    static char Seq[8] = {'A', 0, 'C', 0, 'T', 0, 'G', 0    };
    int text_h = m_Font.TextHeight();

    glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);        
    glColor3d(0.9, 0.9, 1.0);
    glRectd(kRowSpace, kRowSpace, 
            kRowSpace * 2 + kButtons * (kButtonSize + kButtonSpace), kRowH  - kRowSpace);

    glColor3i(0, 0, 0);
    m_Font.TextOut(kRowSpace + 5, kRowSpace + 5 + text_h, "CTooltip::eHideOnMove");
    
    float x = kRowSpace + kButtonSpace / 2;
    float y = kRowH - kRowSpace - kButtonSpace / 2 - kButtonSize;
    for(int i = 0; i < 12; i++) {        
        glColor3d(0.7, 0.7, 1.0);
        glRectd(x, y, x + kButtonSize, y + kButtonSize);

        glColor3d(0, 0, 0.25);
        int ind = (i % 4) * 2;
        m_Font.TextOut(x, y, kButtonSize, kButtonSize, Seq + ind, FL_ALIGN_CENTER);
        x += kButtonSize + kButtonSpace;
    }  
}

static int kAmp = 20;
static int kSignalLength = 400;

double GetFuncValue(int index)  
{
    double a = 0.1 * index;
    return sin(a) * kAmp;
}

void CTTWindow::x_RenderSecondRow()
{    
    int text_h = m_Font.TextHeight();

    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);        
    glColor3d(0.9, 1.0, 0.9);
    glRectd(kRowSpace, kRowH + kRowSpace, 
            kRowSpace * 2 + kSignalLength, 2 * kRowH  - kRowSpace);

    glColor3i(0, 0, 0);
    m_Font.TextOut(kRowSpace + 5, kRowH + kRowSpace + 5 + text_h, "CTooltip::eTrackOnMove");    

    //draw signal
    glColor3d(0, 0.5, 0);
    int y = 2 * kRowH - kRowSpace - kAmp;
    glBegin(GL_LINE_STRIP);
        for( int i = 0; i< kSignalLength; i++ ) {
            double v = GetFuncValue(i);    
            glVertex2d(i + kRowSpace, y + v);
        }
    glEnd();
}


void CTTWindow::x_RenderThirdRow()
{
    int text_h = m_Font.TextHeight();

    glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);        
    glColor3d(1.0, 0.9, 0.9);
    glRectd(kRowSpace, 2 * kRowH + kRowSpace, 
            kRowSpace * 2 + kButtons * (kButtonSize + kButtonSpace), 3 * kRowH  - kRowSpace);

    glColor3i(0, 0, 0);
    m_Font.TextOut(kRowSpace + 5, 2 * kRowH + kRowSpace + 5 + text_h, "CTooltip::eStayOnMove");    

    float x = kRowSpace + kButtonSpace / 2;
    float y = 3 * kRowH - kRowSpace - kButtonSpace / 2 - kButtonSize;
    for(int i = 0; i < 12; i++) {        
        glColor3d(1.0, 0.7, 0.7);
        glRectd(x, y, x + kButtonSize, y + kButtonSize);

        glColor3d(0, 0, 0.25);
        int ind = (i % 4) * 2;
        m_Font.TextOut(x, y, kButtonSize, kButtonSize, NStr::IntToString(i + 1).c_str(), FL_ALIGN_CENTER);
        x += kButtonSize + kButtonSpace;
    }
}

int CTTWindow::handle(int event)
{
   switch (event) {
   case FL_MOVE:
        if(! m_bActiveTooltip)  { // this is needed only for "passive" tooltip
            bool b_reset = true;
        
            int x = Fl::event_x();
            int y = Fl::event_y();
            
            int row = x_HitTest(x, y, b_reset);                
        
            if(row == -1)    {
                m_Tooltip.Deactivate(b_reset); // explicit deactivation
            } else  {
                CTooltip::EMode mode;
                switch(row) {
                case 0: mode = CTooltip::eHideOnMove; break;
                case 1: mode = CTooltip::eTrackOnMove; break;
                case 2: mode = CTooltip::eStayOnMove; break;
                }
                m_Tooltip.SetMode(mode);
                
                // explicit activation
                m_Tooltip.Activate(this, m_TooltipText, m_X, m_Y, m_W, m_H);
            }            
        }
        break;
    }
    
    // pass events to the tooltip object
    m_Tooltip.Handle(event);

    return CGlCanvas2d::handle(event);
}

/// Performs hit testing and save results (m_Tooltiptext, m_X, m_Y, m_W, m_H) 
/// for possible future use
int    CTTWindow::x_HitTest(int x, int y, bool& b_reset)
{
    switch(y / kRowH)   { // swith by row index
    case 0: {
        int btn_size = kButtonSize + kButtonSpace;
        if(y >= kRowH  - kRowSpace - btn_size  &&  y < kRowH  - kRowSpace
            && x > kRowSpace  &&  x < (kRowSpace * 2 + kButtons * btn_size) )    {
            int loc_x = (x - kRowSpace - kButtonSpace / 2);
            if(loc_x % btn_size < kButtonSize)  { // hit a button
                int ind = loc_x / btn_size; // button index

                m_TooltipText = "Postion ";
                m_TooltipText += NStr::IntToString(ind);

                if(! m_bActiveTooltip)  {
                    m_X = x;
                    m_Y = y;
                    m_W = m_H = 1;
                }
                return 0;
            }
        }
    }; break;
    case 1: {
        int bottom = 2 * kRowH  - kRowSpace;
        if(y > bottom - 2 * kAmp  &&  y < bottom
            && x > kRowSpace  &&  x < (kRowSpace * 2 + kSignalLength) )    {
            int loc_x = x - kRowSpace;
            double v = GetFuncValue(loc_x);
        
            char s[100];
            sprintf(s, "Function value %.2f", v / -kAmp);
            m_TooltipText = s;
            
            if(! m_bActiveTooltip)  {
                m_X = x;
                m_Y = y;
                m_W = m_H = 1;
            }
            return 1;
        }
    
    };
    case 2: {
        int btn_size = kButtonSize + kButtonSpace;
        int bottom = 3 * kRowH  - kRowSpace;
        if(y >= bottom - btn_size  &&  y < bottom - kButtonSpace
            && x > kRowSpace  &&  x < (kRowSpace * 2 + kButtons * btn_size) )    {

            b_reset = false;

            int loc_x = (x - kRowSpace - kButtonSpace / 2);
            if(loc_x % btn_size < kButtonSize)  {
                int ind = loc_x / btn_size;

                m_TooltipText = "Button # ";
                m_TooltipText += NStr::IntToString(ind + 1);
                
                // set tooltip area equal to button rectangle
                m_X = kRowSpace + kButtonSpace / 2;
                m_Y = 2 * kRowH  - kRowSpace;
                m_W = m_H = kButtonSize;
                return 2;
            }
        }
    };
    default: break;
    }
    return -1;
}

///////////////////////////////////////////////////////////////////////////////
/// ITooltip Implementation
/// TC_NeedTooltip() and TC_GetTooltip() is evrything needed to show toolitps
/// in "active" mode

bool    CTTWindow::TC_NeedTooltip(int x, int y)
{
    bool b_reset; // dummy
    int row = x_HitTest(x, y, b_reset);                
    
    if(row == -1)    {
        return false; // do not show (hide if visible)
    } else  {
        CTooltip::EMode mode;
        switch(row) {
        case 0: mode = CTooltip::eHideOnMove; break;
        case 1: mode = CTooltip::eTrackOnMove; break;
        case 2: mode = CTooltip::eStayOnMove; break;
        }
        m_Tooltip.SetMode(mode);
        return true; // show tooltip
    }    
}

string  CTTWindow::TC_GetTooltip(int& x, int& y, int& w, int& h)
{
    x = m_X;
    y = m_Y;
    w = m_W;
    h = m_H;

    return m_TooltipText;
}


END_NCBI_SCOPE


/*
 * ===========================================================================
 * $Log: tt_window.cpp,v $
 * Revision 1000.1  2004/06/01 21:10:29  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.2
 *
 * Revision 1.2  2004/05/21 22:27:54  gorelenk
 * Added PCH ncbi_pch.hpp
 *
 * Revision 1.1  2004/01/14 11:55:57  lebedev
 * Moved from gui/opengl/demo
 *
 * Revision 1.3  2004/01/08 19:49:09  yazhuk
 * Implemented demonstration of "active" and "passive" CTooltips
 *
 * Revision 1.2  2003/12/29 21:14:01  yazhuk
 * Migrated from Fl_Tooltip to CTooltip
 *
 * Revision 1.1  2003/09/29 17:00:55  dicuccio
 * Initial revision
 *
 * ===========================================================================
 */