tools/toolmedia/ortoolmedia_view.cxx

/***************************************************************************************
 Autodesk(R) Open Reality(R) Samples
 
 (C) 2009 Autodesk, Inc. and/or its licensors
 All rights reserved.
 
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 or other legal entity for which you are acquiring the software.
 
 AUTODESK, INC., MAKES NO WARRANTY, EITHER EXPRESS OR IMPLIED, INCLUDING BUT 
 NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR 
 PURPOSE REGARDING THESE MATERIALS, AND MAKES SUCH MATERIALS AVAILABLE SOLELY ON AN 
 "AS-IS" BASIS.
 
 IN NO EVENT SHALL AUTODESK, INC., BE LIABLE TO ANYONE FOR SPECIAL, COLLATERAL, 
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***************************************************************************************/

//--- Class declaration
#include "ortoolmedia_view.h"
#include <fbsdk/fbsdk-opengl.h>

FBClassImplementation( ORViewImage );

/************************************************
 *  View constructor.
 ************************************************/
ORViewImage::ORViewImage() : FBView()
{
    mVideo = NULL;
}

/************************************************
 *  View expose function.
 ************************************************/
void ORViewImage::ViewExpose()
{
    double lX,lY,lW,lH;

    // switch to the right matrix mode & load identity.
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();

    // Clear image
    glClearColor(0.0,0.0,0.0,0.0);
    glClear(GL_COLOR_BUFFER_BIT);

    int lWidth = Region.Position.X[1]-Region.Position.X[0];
    int lHeight = Region.Position.Y[1]-Region.Position.Y[0];

    // Set viewport
    SetViewport(0,0,lWidth,lHeight);

    if(mVideo.Ok())
    {
        // Are we controlling the frames
        if( ! mControlFrame )
        {
            mVideo->CurrentFrameTime = FBSystem::TheOne().LocalTime;
        }

        // Resize image as needed.
        if(mVideo->Width > mVideo->Height)
        {
            lW = lWidth;
            lH = lHeight * mVideo->Height / mVideo->Width;

            lX = 0;
            lY = (lHeight - lH) / 2;
        }
        else
        {
            lH = lHeight;
            lW = lWidth * mVideo->Width / mVideo->Height;

            lX = (lWidth - lW) / 2;
            lY = 0;
        }

        // Draw the image.
        mVideo->DrawImage(lX,lY,lW,lH);
    }

}

/************************************************
 *  Handle input into the window.
 ************************************************/
void ORViewImage::ViewInput(int pMouseX,int pMouseY,FBInputType pAction,int pButtonKey,int pModifier)
{
    FBView::ViewInput(pMouseX, pMouseY, pAction, pButtonKey, pModifier);
}