void WarpPerspective::draw( bool controls )
{
// only draw grid while editing
if( isEditModeEnabled() ) {
gl::pushModelMatrix();
gl::multModelMatrix( getTransform() );
gl::ScopedGlslProg shader( gl::getStockShader( gl::ShaderDef().color() ) );
gl::ScopedLineWidth linewidth( 1.0f );
glHint( GL_LINE_SMOOTH_HINT, GL_NICEST );
gl::ScopedColor color( Color::white() );
for( int i = 0; i <= 1; i++ ) {
float s = i / 1.0f;
gl::drawLine( vec2( s * (float)mWidth, 0.0f ), vec2( s * (float)mWidth, (float)mHeight ) );
gl::drawLine( vec2( 0.0f, s * (float)mHeight ), vec2( (float)mWidth, s * (float)mHeight ) );
}
gl::drawLine( vec2( 0.0f, 0.0f ), vec2( (float)mWidth, (float)mHeight ) );
gl::drawLine( vec2( (float)mWidth, 0.0f ), vec2( 0.0f, (float)mHeight ) );
gl::popModelMatrix();
if( controls && mSelected < mPoints.size() ) {
// draw control points
for( int i = 0; i < 4; i++ )
queueControlPoint( mDestination[i], i == mSelected );
drawControlPoints();
}
}
}
void Warp::queueControlPoint( const vec2 &pt, bool selected, bool attached )
{
float scale = 0.9f + 0.2f * math<float>::sin( 6.0f * float( app::getElapsedSeconds() - mSelectedTime ) );
if( selected && attached ) {
queueControlPoint( pt, Color( 0.0f, 0.8f, 0.0f ) );
}
else if( selected ) {
queueControlPoint( pt, Color( 0.9f, 0.9f, 0.9f ), scale );
}
else if( attached ) {
queueControlPoint( pt, Color( 0.0f, 0.4f, 0.0f ) );
}
else {
queueControlPoint( pt, Color( 0.4f, 0.4f, 0.4f ) );
}
}
void WarpPerspectiveBilinear::draw( bool controls )
{
// apply perspective transform
gl::pushModelMatrix();
gl::multModelMatrix( mWarp->getTransform() );
// draw bilinear warp
WarpBilinear::draw( false );
// restore transform
gl::popModelMatrix();
// draw edit interface
if( isEditModeEnabled() ) {
if( controls && mSelected < mPoints.size() ) {
// draw control points
for( unsigned i = 0; i < mPoints.size(); ++i )
queueControlPoint( getControlPoint( i ) * mWindowSize, mSelected == i );
drawControlPoints();
}
}
}
