TAPsOpenGLCtrlSlider.cpp

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/******************************************************************************
TAPsOpenGLCtrlSlider.cpp

Slider Control via OpenGL

SUKITTI PUNAK   (06/15/2007)
UPDATE          (06/15/2007)
******************************************************************************/
#include "TAPsOpenGLCtrlSlider.hpp"
// Using Inclusion Model (i.e. definitions are included in declarations)
//                       (this name.cpp is included in name.hpp)
// Each friend is defined directly inside its declaration.

BEGIN_NAMESPACE_TAPs__OpenGL
//=============================================================================
// Constructor(s) and Destructor
//-----------------------------------------------------------------------------
OpenGLCtrlSlider::OpenGLCtrlSlider ()
    : OpenGLCtrl()
{
    Default();
}
//-----------------------------------------------------------------------------
OpenGLCtrlSlider::~OpenGLCtrlSlider ()
{}
//-----------------------------------------------------------------------------
//=============================================================================

//=============================================================================
// Get/Set Function(s)
//-----------------------------------------------------------------------------
void OpenGLCtrlSlider::Default ()
{
    SetSize( 100, 14 );
    SetText( "Slider" );
    m_BorderSize = 1;
    //
    m_ForegroundColor[0] = 1.0;
    m_ForegroundColor[1] = 1.0;
    m_ForegroundColor[2] = 1.0;
    m_ForegroundColor[3] = 0.90;
    //
    m_BackgroundColor[0] = 0.25;
    m_BackgroundColor[1] = 0.25;
    m_BackgroundColor[2] = 0.25;
    m_BackgroundColor[3] = 0.90;
}
//-----------------------------------------------------------------------------
//=============================================================================

//=============================================================================
// Draw Function(s)
//-----------------------------------------------------------------------------
void OpenGLCtrlSlider::Draw ()
{
    //---------------------------------------------------------------
    // Draw Background with Border
    {
        int oneThirdHeight = m_DrawSizeXY[1] / 3;
        int mx = m_xyLowerLeftPt[0];
        int my = m_xyLowerLeftPt[1] + oneThirdHeight;
        int X = m_xyLowerLeftPt[0] + m_DrawSizeXY[0];
        int Y = my + oneThirdHeight;
        glBegin( GL_QUADS );
            // Draw Background
            glColor4fv( m_BackgroundColor );
            glVertex2f( mx, my );
            glVertex2f(  X, my );
            glVertex2f(  X,  Y );
            glVertex2f( mx,  Y );
            //
            /*
            glColor4fv( g_BorderColor );
            // Draw Left Border
            int LX = m_xyLowerLeftPt[0] - m_BorderSize;
            int BY = m_xyLowerLeftPt[1] - m_BorderSize;
            glVertex2f( LX,  m_xyLowerLeftPt[1] );
            glVertex2f( m_xyLowerLeftPt[0], m_xyLowerLeftPt[1] );
            glVertex2f( m_xyLowerLeftPt[0], Y );
            glVertex2f( LX,  Y );
            // Draw Right Border
            int RX = X + m_BorderSize;
            int TY = Y + m_BorderSize;
            glVertex2f(  X, m_xyLowerLeftPt[1] );
            glVertex2f( RX, m_xyLowerLeftPt[1] );
            glVertex2f( RX,  Y );
            glVertex2f(  X,  Y );
            // Draw Top Border
            glVertex2f( LX,  Y );
            glVertex2f( RX,  Y );
            glVertex2f( RX, TY );
            glVertex2f( LX, TY );
            // Draw Bottom Border
            glVertex2f( LX, BY );
            glVertex2f( RX, BY );
            glVertex2f( RX, m_xyLowerLeftPt[1] );
            glVertex2f( LX, m_xyLowerLeftPt[1] );
            //*/
        glEnd();
    }

    DrawText();
    DrawMarker();
}
void OpenGLCtrlSlider::DrawMarker ()
{
    //int X = m_xyLowerLeftPt[0] + m_DrawSizeXY[0];
    //int Y = m_xyLowerLeftPt[1] + m_DrawSizeXY[1];
    int X = m_DrawSizeXY[0] / 20;
    int halfX = X / 2;
    int Y = m_DrawSizeXY[1];
    int mx = m_xyLowerLeftPt[0];
    int my = m_xyLowerLeftPt[1];
    glPushMatrix();
    glTranslatef( 50+mx-halfX, my, 0 );
    glBegin( GL_QUADS );
        glColor4fv( m_BackgroundActColor );
        glVertex2f( 0, 0 );
        glVertex2f( X, 0 );
        glVertex2f( X, Y );
        glVertex2f( 0, Y );
    glEnd();
    glPopMatrix();
}
//-----------------------------------------------------------------------------
//=============================================================================

//=============================================================================
END_NAMESPACE_TAPs__OpenGL
//-----------------------------------------------------------------------------
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