Esempio n. 1
0
void WisteriaApp::update()
{
	// Iterate all the blossoms, update each one and notice if they are all idle
	bool isIdle = true;
	for( vector<Branch>::iterator blossomIt = mBlossoms.begin(); blossomIt != mBlossoms.end(); ++blossomIt ) {
		blossomIt->update();
		if( blossomIt->isAlive() )
			isIdle = false;
	}

	if( isIdle && ( ! mIsIdle ) ) {
		mIsIdle = true;  // first frame of idleness
		mIdleFrames = 0;
	}
	else if( isIdle ) { // the blossoms have all not changed in a while, let's clear them out and put up some new ones
		if( mIdleFrames++ > IDLE_RESTART_FRAMES ) {
			// clear the context
			mOffscreenContext.setSourceRgb( 0.23f, 0.23f, 0.23f );
			mOffscreenContext.paint();
			
			mBlossoms.clear();
			mBlossoms.push_back( Branch( Vec2f( Rand::randFloat( WIDTH ), Rand::randFloat( HEIGHT ) ), Branch::randomHue(), 0 ) );
			mBlossoms.push_back( Branch( Vec2f( Rand::randFloat( WIDTH ), Rand::randFloat( HEIGHT ) ), Branch::randomHue(), 180 ) );
			mBlossoms.push_back( Branch( Vec2f( Rand::randFloat( WIDTH ), Rand::randFloat( HEIGHT ) ), Branch::randomHue(), 320 ) );
			
			mIsIdle = false;
		}
	}
}
Esempio n. 2
0
void bsplineApp::drawBSpline( cairo::Context &ctx )
{
	if( mPoints.size() > (size_t)mDegree ) {
		ctx.setLineWidth( 2.5f );
		ctx.setSourceRgb( 1.0f, 0.5f, 0.25f );
		ctx.appendPath( Path2d( BSpline2f( mPoints, mDegree, mLoop, mOpen ) ) );
		ctx.stroke();
//		ctx.fill();
	}
}
Esempio n. 3
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void CairoBasicApp::renderScene( cairo::Context &ctx )
{
	// clear the context with our radial gradient
	cairo::GradientRadial radialGrad( getWindowCenter(), 0, getWindowCenter(), getWindowWidth() );
	radialGrad.addColorStop( 0, Color( 1, 1, 1 ) );
	radialGrad.addColorStop( 1, Color( 0.6, 0.6, 0.6 ) );	
	ctx.setSource( radialGrad );	
	ctx.paint();
	
	for( vector<Flower>::const_iterator flIt = mFlowers.begin(); flIt != mFlowers.end(); ++flIt )
		flIt->draw( ctx );
}
Esempio n. 4
0
	void draw( cairo::Context &ctx ) const
	{
		// draw the solid petals
		ctx.setSource( mColor );
		makePath( ctx );
		ctx.fill();
		
		// draw the petal outlines
		ctx.setSource( mColor * 0.8f );
		makePath( ctx );
		ctx.stroke();
	};
Esempio n. 5
0
	void makePath( cairo::Context &ctx ) const
	{
		for( int petal = 0; petal < mNumPetals; ++petal ) {
			ctx.newSubPath();
			float petalAngle = ( petal / (float)mNumPetals ) * 2 * M_PI;
			Vec2f outsideCircleCenter = mLoc + Vec2f::xAxis() * cos( petalAngle ) * mRadius + Vec2f::yAxis() * sin( petalAngle ) * mRadius;
			Vec2f insideCircleCenter = mLoc + Vec2f::xAxis() * cos( petalAngle ) * mPetalInsideRadius + Vec2f::yAxis() * sin( petalAngle ) * mPetalInsideRadius;
			ctx.arc( outsideCircleCenter, mPetalOutsideRadius, petalAngle + M_PI / 2 + M_PI, petalAngle + M_PI / 2 );
			ctx.arc( insideCircleCenter, mPetalInsideRadius, petalAngle + M_PI / 2, petalAngle + M_PI / 2 + M_PI );
			ctx.closePath();
		}		
	}
Esempio n. 6
0
void fontSampleApp::drawCharacterVerbose( cairo::Context &ctx, vec2 where )
{
	cairo::Matrix prevMat;
	ctx.getMatrix( &prevMat );
	
	// draw it filled
	ctx.setSourceRgb( 1.0f, 1.0, 0.5f );
	ctx.translate( where );
	// Uncomment below to render the character filled
	// ctx.appendPath( mShape );
	// ctx.fill();
	
	VerboseCharDraw verb( ctx );
	mShape.iterate<VerboseCharDraw>( verb );
	
	ctx.setMatrix( prevMat );
}
void ContinuousPathApp::drawCurves(cairo::Context &ctx, Path2d path, float thickness, Color col)
{    
    ctx.setLineWidth(thickness);
    ctx.setSource(col);
    ctx.newSubPath();
    
    int pointIndex = 0;
    for (int i=0; i<path.getNumSegments(); i++) {
        
        int segType = path.getSegmentType(i);
        
        // change jumpIndex depending on the type of segment
        switch(segType){
            case Path2d::CUBICTO:
                if(i==0) ctx.moveTo(path.getPoint(pointIndex));
                // do a curve to using the next 2 points as the curves and the 3rd as the end point
                ctx.curveTo(path.getPoint(pointIndex+1), path.getPoint(pointIndex+2), path.getPoint(pointIndex+3));
                pointIndex += 3;
                break;
            case Path2d::MOVETO:
                // don't do anything with this point
                ctx.moveTo(path.getPoint(pointIndex));
                pointIndex += 0;
                break;
            default:
                pointIndex += 1;
                break;
        }
    }
    ctx.stroke();
}
Esempio n. 8
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void WisteriaApp::setup()
{
	// allocate our offscreen buffer
	mOffscreenBuffer = cairo::SurfaceImage( WIDTH, HEIGHT, false );
	mOffscreenContext = cairo::Context( mOffscreenBuffer );

	// fill the buffer with gray
	mOffscreenContext.setSourceRgb( 0.23f, 0.23f, 0.23f );
	mOffscreenContext.paint();
	
	// Let the Branches know how big our windows is
	Branch::setWindowSize( WIDTH, HEIGHT );
	
	// Create some starting blossoms
	mBlossoms.push_back( Branch( Vec2f( WIDTH - 50, 50 ), 0.619444444f, 0 ) );
	mBlossoms.push_back( Branch( Vec2f( 60, HEIGHT - 60 ), 0.905f, 180 ) );
	mBlossoms.push_back( Branch( Vec2f( WIDTH / 2, HEIGHT / 2 ), 0.105555556f, 320 ) );
	
	mIsIdle = false;
	mIdleFrames = 0;
}
void PathSimplificationApp::drawLine(cairo::Context &ctx, Vec2f const &pt1, Vec2f const &pt2, float thickness, Color col)
{
    ctx.setLineWidth(thickness);
    ctx.setSource(col);
    ctx.newSubPath();
    ctx.moveTo(pt1.x, pt1.y);
    ctx.lineTo(pt2.x, pt2.y);
    
    ctx.closePath();
    ctx.stroke();
}
// Draw each path onto the passed cairo context
void PathSimplificationApp::drawPath(cairo::Context &ctx, SmoothPath *smoothPath, int mode)
{
    // initialize the line settings
    float thickness = 1.0;
    ctx.setLineWidth( 1.0f );
    ctx.setLineCap(cairo::LINE_CAP_ROUND);
    ctx.setLineJoin(cairo::LINE_JOIN_ROUND);

    
    if(smoothPath->inProgress){
        // draw lines point to point
        vector<Vec2f> pathPoints = smoothPath->getPathPoints();
        for (int i=1; i<pathPoints.size(); i++) {
            drawLine(ctx, pathPoints[i-1], pathPoints[i], 1.0, Color(1.0, 0.0, 0.0));
            drawCircle(ctx, pathPoints[i], 2, Color(1.0, 0.0, 0.0));
        }
    }else{
        // draw smooth lines
        Path2d path = smoothPath->getCurrentPath();
        drawCurves(ctx, path, thickness, Color(255.0, 0.0, 0.0));
        
        int pointIndex = 0;
        // draw circles at the bezier points
        for (int i=0; i<path.getNumSegments(); i++) {
            Vec2f c1 = path.getPoint(pointIndex+1);
            Vec2f c2 = path.getPoint(pointIndex+2);
            Vec2f pt1 = path.getPoint(pointIndex);
            Vec2f pt2 = path.getPoint(pointIndex+3);
            drawCircle(ctx, c1, 1, Color(1.0f, 1.0f, 0.0f), true);
            drawCircle(ctx, c2, 1, Color(0.0f, 1.0f, 1.0f));
            drawLine(ctx, c1, pt1, 1, Color(1.0, 1.0, 0.0 ));
            drawLine(ctx, c2, pt2, 1, Color(0.0, 1.0, 1.0 ));
            pointIndex += 3;
        }
    }   
}
void ContinuousPathApp::drawCircle(cairo::Context &ctx, Vec2f const &pt, double diameter,  Color col, bool outline)
{
    ctx.setLineWidth(1);
    ctx.setSource( col );
    ctx.newSubPath();
    ctx.circle( pt.x, pt.y, diameter );
    ctx.closePath();
    
    if(outline){
        ctx.stroke();
    }else{
        ctx.fill();   
    }
}
Esempio n. 12
0
void Branch::draw( cairo::Context ctx )
{
    if ( mLaunchDelay > 0 )
        return;

    if( ( mLifespan > 0 ) && ( ! mIsRoot ) ) {
        float ageLerp = 1.0 - mLifespan / (float)mTotalLifespan;
        float radius = lerp( mStartEllipseRadius, mEndEllipseRadius, ageLerp );
        ColorA drawColor = lerp( mStartColor, mEndColor, ageLerp );
        ctx.setSourceRgba( drawColor.r, drawColor.g, drawColor.b, 0.075f );
        ctx.circle( mPos, ( 5.0f * mScale + radius * 1.3f ) / 2 );
        ctx.fill();
        ctx.setSource( drawColor );
        ctx.circle( mPos, radius / 2 );
        ctx.fill();
    }

    for( vector<Branch>::iterator blossomIt = mBranches.begin(); blossomIt != mBranches.end(); ++blossomIt ) {
        blossomIt->draw( ctx );
    }
}
Esempio n. 13
0
void ChessPiece::Render(cairo::Context &ctx)
{

	/*if (team = Black)
	{
		ctx.setSourceRgb(0.3, 0.3, 0.3);
	}
	else
	{
		ctx.setSourceRgb(0.7, 0.7, 0.7);
	}

	switch (type)
	{
	case King:		
		ctx.showText("King");
		break;
	case Queen:
		ctx.showText("Queen");
		break;
	case Knight:
		ctx.showText("Knight");
		break;
	case Bishop:
		ctx.showText("Bishop");
		break;
	case Rook:
		ctx.showText("Rook");
		break;
	case Pawn:
		ctx.showText("Pawn");
		break;
	case Invalid:
		break;
	default:
		break;
	}*/

	int verticalOffset;
	int horizontalOffset;

	switch (type)
	{
	case King:
		horizontalOffset = 37;
		verticalOffset = 17;
		break;
	case Queen:
		horizontalOffset = 35;
		verticalOffset = 17;
		break;
	case Knight:
		horizontalOffset = 26;
		verticalOffset = 17;
		break;
	case Bishop:
		horizontalOffset = 33;
		verticalOffset = 17;
		break;
	case Rook:
		horizontalOffset = 27;
		verticalOffset = 17;
		break;
	case Pawn:
		horizontalOffset = 26;
		verticalOffset = 17;
		break;
	case Invalid:
		break;
	default:
		break;
	}


	cinder::Vec2f TLPoint = GetTopLeftBoxPoint();

	horizontalOffset += (int)TLPoint.x;
	verticalOffset += (int)TLPoint.y;

	ctx.translate(horizontalOffset, verticalOffset);
	
	cinder::cairo::SurfaceImage siPiece(surface);
	cinder::cairo::SurfaceBase* sb = &siPiece;

	ctx.setSourceSurface(siPiece, 0, 0);
	ctx.maskSurface(sb, 0, 0);


	ctx.stroke();

	ctx.translate(-horizontalOffset, -verticalOffset);
}
Esempio n. 14
0
void NodeView::draw(cairo::Context &theG) {
    _size = _calculateSize();

        
    cairo::GradientLinear myGradient(0, 0, 0, _size.y);
    
    if(_node->state() == WARNING) {
        myGradient.addColorStop(0.15, Colorf(0.518, 0.298, 0.298*0.5));
        myGradient.addColorStop(0.85, Colorf(0.898, 0.467, 0.0));
    } else if(_node->state() == ERROR) {
        myGradient.addColorStop(0.15, Colorf(0.5, 0, 0));
        myGradient.addColorStop(0.85, Colorf(0.8, 0, 0));

    } else {
        myGradient.addColorStop(0.15, Colorf(0.14, 0.12, 0.129));
        myGradient.addColorStop(0.85, Colorf(0.227, 0.188, 0.2));
        
    }
   
    
    
	Rectf myRect;
	myRect.set(0, 0, _size.x, _size.y);

    Vec2f myCorrection(0.5, 0.5);

    theG.translate(myCorrection);
   	theG.translate(_position);
    

    theG.setSourceRgb(0.7, 0.7, 0.7);
    
    theG.roundedRectangle(myRect, 2);
    theG.setLineWidth(1);
    theG.stroke();
    
    theG.translate(Vec2f(-0.5, -0.5));

    
    theG.setSource(myGradient);

    theG.roundedRectangle(myRect, 2);
    theG.fill(); 
    
    
    
    
    
//    for(int i = 0; i < _node->inputs().size(); i++) {
//        NodeInputBase *myInput = _node->inputs()[i];
//        int myX = _size.x - (i * PIN_WIDTH + (i-1) * PIN_SPACING + PIN_SPACING + PIN_WIDTH);
//        
//        theG.setSourceRgb(0.8, 0.8, 0.8);
//        theG.rectangle(myX - PIN_WIDTH, 0, PIN_WIDTH, PIN_HEIGHT);
//        theG.fill();
//        
//        
//        
//    }
//    
//    
//    
//    for(int i = 0; i < _node->outputs().size(); i++) {
//        NodeOutputBase *myOutput = _node->outputs()[i];
//        
//        int myX = _size.x - (i * PIN_WIDTH + (i-1) * PIN_SPACING + PIN_SPACING + PIN_WIDTH);
//        
//        theG.setSourceRgb(0.8, 0.8, 0.8);
//        theG.rectangle(myX - PIN_WIDTH, _size.y - PIN_HEIGHT, PIN_WIDTH, PIN_HEIGHT);
//        theG.fill();        
//    }
    
    
    
    
    theG.translate(Vec2f(5, _size.y - 5));
    theG.setSourceRgb(0.8, 0.8, 0.8);
    theG.setFont( _font );
    theG.setFontSize( 10 );
    theG.showText( _node->name() );
    theG.fill();
    
    theG.setSourceRgb(1.0, 0, 0);
    

    theG.flush();    
}
// Draw each path onto the passed cairo context
void ContinuousPathApp::drawPath(cairo::Context &ctx, SmoothPath *smoothPath, int mode)
{
    // update the drawing points only if the line hasn't been completed
    
    Path2d path = smoothPath->getCurrentPath();
    vector<Vec2f> pathPoints = smoothPath->getPathPoints();
    vector<int>   endPoints = smoothPath->getEndPoints();
    
    if(path.getNumPoints() == 0) return;
    
    
    // initialize the line settings
    float thickness = 1.0;
    ctx.setLineWidth( 1.0f );
    ctx.setLineCap(cairo::LINE_CAP_ROUND);
    ctx.setLineJoin(cairo::LINE_JOIN_ROUND);
    
    Vec2f pt = path.getPoint(0);
    
    
    // draw bezier line
    if (mode != 5) {
        // draw the line based on bezier points
        drawCurves(ctx, path, thickness, Color(255.0, 0.0, 0.0));
    }
    
    
    // draw circles at each of the original path points
    if(mode != 1 && mode != 5){
        for (int i=0; i<pathPoints.size(); i++) {
            Vec2f pt = pathPoints[i];        
            drawCircle(ctx, pt, 1, Color( 1.0f, 1.0f, 1.0f ));
        }
    }
    
    
    int i;
    int pointIndex = 0;
    // draw circles at the bezier points
    for (i=0; i<path.getNumSegments(); i++) {
        
        int segType = path.getSegmentType(i);
        
        // change jumpIndex depending on the type of segment
        switch(segType){
            case Path2d::CUBICTO:
            {
                Vec2f c1 = path.getPoint(pointIndex+1);
                Vec2f c2 = path.getPoint(pointIndex+2);
                Vec2f pt1 = path.getPoint(pointIndex);
                Vec2f pt2 = path.getPoint(pointIndex+3);
                
                
                if (mode == 2 || mode == 3) {
                    if(mode == 2){
                        for(int j=0; j<endPoints.size(); j++){
                            if(endPoints[j] == pointIndex){
                                drawCircle(ctx, pt2, 8, Color(0.0f, 1.0f, 1.0f), true);
                            }
                        }
                    }
                    if(mode == 3){
                        // draw the control points and tangent lines
                        drawCircle(ctx, c1, 2, Color(1.0f, 1.0f, 0.0f), true);
                        drawCircle(ctx, c2, 2, Color(0.0f, 1.0f, 1.0f));
                        drawLine(ctx, c1, pt1, 1, Color(1.0, 1.0, 0.0 ));
                        drawLine(ctx, c2, pt2, 1, Color(0.0, 1.0, 1.0 ));
                    }
                    drawCircle(ctx, pt2, 2, Color(1.0f, 0.0f, 1.0f));
                    drawCircle(ctx, pt1, 2, Color(1.0f, 0.0f, 0.0f), true);
                }
                
                if (mode == 4) {
                    
                    drawLine(ctx, pt1, pt2, 1, Color(1.0, 1.0, 1.0 ));
                    drawCircle(ctx, pt1, 5, Color(1.0, 0.0, 0.0), true);
                    drawCircle(ctx, pt2, 3, Color(1.0, 0.0, 1.0));
                }
                
                pointIndex += 3;
                break;
            }
                
            case Path2d::MOVETO:
                // don't do anything with this point
                pointIndex += 0;
                break;
                
            default:
                pointIndex += 1;
                break;
        }
    }
    
    
    if (mode== 5) {
        // draw a line between the last bezier point and the current point
        for (i=1; i<pathPoints.size(); i++) {
            drawLine(ctx, pathPoints[i-1], pathPoints[i], 1.0, Color(1.0, 0.0, 0.0));
        }
    }
}