Examples of ColorCurve

org.photovault.image.ColorCurve
Mapping from original color channel to to desired output channel values. In practice, this class implements a 1-dimensional function defined by a cubic (Bezier) spline that goes through user-defined control points. Assumption in Photovault is that color channle values are mapped to range (0.0->1.0) for both input and output but the class itself does not pose such restriction.
More specifially, the mapping is defined as follows
- x values smaller than smallest control point X value are mapped to y value of the CP with smallest X
- Similarly X values that are larger than any CP are mapped to Y value of CP with largest X
- In conrol points the tangent of f(x) is parallel to the line between previous and next control points, with the exception that in first and last CP the derivative is noncontiguous.

Examples of org.photovault.image.ColorCurve

     */
    private void showCurve( int chan ) {
        currentColorCurve = chan;
        if ( colorCurves[chan] == null ) {
            // The curve is not present in current profile
            ColorCurve c = colorCurves[chan] = new ColorCurve();
            c.addPoint( 0.0, 0.0 );
            c.addPoint( 1.0, 1.0 );
        }
        colorCurvePanel1.setCurve( colorCurves[chan], curveColors[chan] );
        colorCurvePanel1.clearReferenceCurves();
        if ( refCurves[chan] != null ) {
            for ( Object c : refCurves[chan] ) {
                if ( c == null ) {
                    c = new ColorCurve();
                }
                colorCurvePanel1.addReferenceCurve( (ColorCurve) c, refCurveColors[chan] );
            }
        }
        
        // Draw also the curves for other channels
        for ( int n = 0 ; n < colorCurves.length ; n++ ) {
            if ( n != chan ) {
                ColorCurve c = colorCurves[n];
                if ( c == null ) {
                    c = new ColorCurve();
                }
                colorCurvePanel1.addReferenceCurve( c, refCurveColors[n] );
            }
        }
        colorCurveSelectionCombo.setSelectedIndex( chan );

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Examples of org.photovault.image.ColorCurve

        }
        
    }
    
    public ColorCurve getColorChannelCurve(String name) {
        ColorCurve ret = null;
        for ( int n = 0 ; n < colorCurveNames.length ; n++ ) {
            if ( colorCurveNames[n].equals( name ) ) {
                ret = colorCurves[n];
                break;
            }

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Examples of org.photovault.image.ColorCurve

     Test that dragging a control point works.
     */
    public void testSetCurve() {
        showFrame();
        tester.actionWaitForIdle();
        ColorCurve c = new ColorCurve();
        c.addPoint( 0.0, 0.0 );
        c.addPoint( 1.0, 1.0 );
        cp.setCurve( c );
        
        // Drag the black point
        int startX = 0;
        int startY = cp.getHeight()-1;
        int endX = cp.getWidth() / 10;
        int endY = cp.getHeight() * 8 / 10;
        tester.mousePress( cp, startX, startY );
        tester.mouseMove( cp, endX, endY );
        tester.mouseRelease();
        c = cp.getCurve();
        assertEquals( 0.1, c.getX( 0 ), 0.02 );
        assertEquals( 0.2, c.getY( 0 ), 0.02 );
        
    }

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Examples of org.photovault.image.ColorCurve

     Test dragging control point outside window.
     */
    public void testDragOutside() {
        showFrame();
        tester.actionWaitForIdle();
        ColorCurve c = new ColorCurve();
        c.addPoint( 0.0, 0.0 );
        c.addPoint( 1.0, 1.0 );
        cp.setCurve( c );
        
        // Drag the black point
        int startX = 0;
        int startY = cp.getHeight()-1;
        tester.mousePress( cp, startX, startY );
        Point endPoint = getPoint( 0.0, 0.1 );
        tester.mouseMove( pane, 0, (int)(endPoint.getY()) + 50 );
        tester.mouseRelease();
        c = cp.getCurve();
        assertEquals( 0.0, c.getX( 0 ) );
        assertEquals( 0.1, c.getY( 0 ), 0.02 );
    }

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Examples of org.photovault.image.ColorCurve

     existing control points.
     */
    public void testCreateCP() {
        showFrame();
        tester.actionWaitForIdle();
        ColorCurve c = new ColorCurve();
        c.addPoint( 0.0, 0.0 );
        c.addPoint( 1.0, 1.0 );
        cp.setCurve( c );
        
        CurvePanelListener l = new CurvePanelListener();
        cp.addListener( l );
        Point start = getCurvePoint( c, 0.3 );
        tester.mousePress( cp, (int)start.getX(), (int)start.getY() );
        Point end = getPoint( 0.6, 0.4 );
        tester.mouseMove( cp, (int)end.getX(), (int)end.getY() );
        assertTrue( l.dragStarted );
        tester.mouseRelease();
        tester.actionWaitForIdle();
        assertTrue( l.dragCompleted );
        c = cp.getCurve();
        assertEquals( 3, c.getPointCount() );
        assertEquals( 0.6, c.getX( 1 ), 0.01 );
        assertEquals( 0.4, c.getY( 1 ), 0.01 );
        
    }

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Examples of org.photovault.image.ColorCurve

     Test dragging a control point across another point.
     */
    public void testDragCross() {
        showFrame();
        tester.actionWaitForIdle();
        ColorCurve c = new ColorCurve();
        c.addPoint( 0.0, 0.0 );
        c.addPoint( 1.0, 1.0 );
        c.addPoint( 0.5, 0.5 );
        c.addPoint( 0.6, 0.4 );
        cp.setCurve( c );
        Point start = getCurvePoint( c, 0.5 );
        tester.mousePress( cp, (int)start.getX(), (int)start.getY() );
        // Drag CP 1 so that it goes to the other side of CP 2
        Point end = getPoint( 0.65, 0.4 );
        tester.mouseMove( cp, (int)end.getX(), (int)end.getY() );
        tester.mouseRelease();
        c = cp.getCurve();
        assertEquals( 4, c.getPointCount() );
        assertEquals( 0.5, c.getX( 1 ), 0.01 );
        assertEquals( 0.5, c.getY( 1 ), 0.01 );
        
    }

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Examples of org.photovault.image.ColorCurve

            colorMappingChanged();
        }
        protected Object getModelValue( Object model ) {
            PhotoInfo obj = (PhotoInfo) model;
            ChannelMapOperation cm = obj.getColorChannelMapping();
            ColorCurve ret = null;
            if ( cm != null ) {
                ret = cm.getChannelCurve( name );
            }
            return ret;
        }

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Examples of org.photovault.image.ColorCurve

        assertEquals( 8.0, p.getFStop() );
        assertEquals( "Digital", p.getFilm() );
        assertEquals( 100, p.getFilmSpeed() );
        assertEquals( 0, p.getQuality() );
        ChannelMapOperation cm = p.getColorChannelMapping();
        ColorCurve c = cm.getChannelCurve( "value" );
        assertEquals( 0.4, c.getY( 1 ) );
        assertEquals( 0.5, c.getX( 1 ) );
        boolean foundOrig = false;
        for ( int n = 0; n < p.getNumInstances(); n++ ) {
            ImageInstance i = p.getInstance( n );
            if ( i.getInstanceType() == ImageInstance.INSTANCE_TYPE_ORIGINAL ) {
                cm = i.getColorChannelMapping();
                c = cm.getChannelCurve( "value" );
                assertEquals( 0.2, c.getY( 1 ) );
                assertEquals( 0.6, c.getX( 1 ) );                
                foundOrig = true;
            }
        }
        assertTrue( foundOrig );
        assertTrue( l.objects.contains( p ) );

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Examples of org.photovault.image.ColorCurve

     */
    void setColorCurve(String name, ColorCurve c) {
        if ( origImage != null ) {
            if ( c == null ) {
                // Null curve, use identity mapping
                c = new ColorCurve();
            }
            ChannelMapOperation cm = origImage.getColorAdjustment();
            ChannelMapOperationFactory f = new ChannelMapOperationFactory( cm );
            f.setChannelCurve( name, c );
            origImage.setColorAdjustment( f.create() );

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