Examples of org.apache.fop.area.CTM

org.apache.fop.area.CTM
Describe a PDF or PostScript style coordinate transformation matrix (CTM). The matrix encodes translations, scaling and rotations of the coordinate system used to render pages.

        // refine x-shift
        da[4] = Helper.roundPosition((int) da[4], TXTRenderer.CHAR_WIDTH);
        // refine y-shift
        da[5] = Helper.roundPosition((int) da[5], TXTRenderer.CHAR_HEIGHT);
        
        return new CTM(da[0], da[1], da[2], da[3], da[4], da[5]);
    }

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     * @param ctm CTM
     * @return transformed Point
     */
    public Point transformPoint(Point p, CTM ctm) {
        Rectangle2D r = new Rectangle2D.Double(p.x, p.y, 0, 0);
        CTM nctm = refineCTM(ctm);
        r = nctm.transform(r);
        return new Point((int) r.getX(), (int) r.getY());
    }

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        // save positions
        int saveIP = currentIPPosition;
        int saveBP = currentBPPosition;
        //String saveFontName = currentFontName;


        CTM ctm = bv.getCTM();
        int borderPaddingStart = bv.getBorderAndPaddingWidthStart();
        int borderPaddingBefore = bv.getBorderAndPaddingWidthBefore();
        float x, y;
        x = (float)(bv.getXOffset() + containingIPPosition) / 1000f;
        y = (float)(bv.getYOffset() + containingBPPosition) / 1000f;
        //This is the content-rect
        float width = (float)bv.getIPD() / 1000f;
        float height = (float)bv.getBPD() / 1000f;
        


        if (bv.getPositioning() == Block.ABSOLUTE
                || bv.getPositioning() == Block.FIXED) {


            currentIPPosition = bv.getXOffset();
            currentBPPosition = bv.getYOffset();


            //For FIXED, we need to break out of the current viewports to the
            //one established by the page. We save the state stack for restoration
            //after the block-container has been painted. See below.
            List breakOutList = null;
            if (bv.getPositioning() == Block.FIXED) {
                breakOutList = breakOutOfStateStack();
            }
            
            CTM tempctm = new CTM(containingIPPosition, containingBPPosition);
            ctm = tempctm.multiply(ctm);


            //Adjust for spaces (from margin or indirectly by start-indent etc.
            x += bv.getSpaceStart() / 1000f;
            currentIPPosition += bv.getSpaceStart();
            
            y += bv.getSpaceBefore() / 1000f;
            currentBPPosition += bv.getSpaceBefore(); 


            float bpwidth = (borderPaddingStart + bv.getBorderAndPaddingWidthEnd()) / 1000f;
            float bpheight = (borderPaddingBefore + bv.getBorderAndPaddingWidthAfter()) / 1000f;


            drawBackAndBorders(bv, x, y, width + bpwidth, height + bpheight);


            //Now adjust for border/padding
            currentIPPosition += borderPaddingStart;
            currentBPPosition += borderPaddingBefore;
            
            Rectangle2D clippingRect = null;
            if (bv.getClip()) {
                clippingRect = new Rectangle(currentIPPosition, currentBPPosition, 
                        bv.getIPD(), bv.getBPD());
            }


            startVParea(ctm, clippingRect);
            currentIPPosition = 0;
            currentBPPosition = 0;
            renderBlocks(bv, children);
            endVParea();


            if (breakOutList != null) {
                restoreStateStackAfterBreakOut(breakOutList);
            }
            
            currentIPPosition = saveIP;
            currentBPPosition = saveBP;
        } else {


            currentBPPosition += bv.getSpaceBefore();


            //borders and background in the old coordinate system
            handleBlockTraits(bv);


            //Advance to start of content area
            currentIPPosition += bv.getStartIndent();


            CTM tempctm = new CTM(containingIPPosition, currentBPPosition);
            ctm = tempctm.multiply(ctm);
            
            //Now adjust for border/padding
            currentBPPosition += borderPaddingBefore;


            Rectangle2D clippingRect = null;

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    /**
     * Restores the state stack after a break out.
     * @param breakOutList the state stack to restore.
     */
    protected void restoreStateStackAfterBreakOut(List breakOutList) {
        CTM tempctm;
        comment("------ restoring context after break-out...");
        PDFState.Data data;
        Iterator i = breakOutList.iterator();
        double[] matrix = new double[6];
        while (i.hasNext()) {
            data = (PDFState.Data)i.next();
            currentState.push();
            saveGraphicsState();
            AffineTransform at = data.getTransform();
            if (!at.isIdentity()) {
                currentState.setTransform(at);
                at.getMatrix(matrix);
                tempctm = new CTM(matrix[0], matrix[1], matrix[2], matrix[3], 
                                  matrix[4] * 1000, matrix[5] * 1000);
                currentStream.add(CTMHelper.toPDFString(tempctm) + " cm\n");
            }
            //TODO Break-out: Also restore items such as line width and color
            //Left out for now because all this painting stuff is very

View Full Code Here


        // save positions
        int saveIP = currentIPPosition;
        int saveBP = currentBPPosition;


        CTM ctm = bv.getCTM();
        int borderPaddingStart = bv.getBorderAndPaddingWidthStart();
        int borderPaddingBefore = bv.getBorderAndPaddingWidthBefore();
        float x, y;
        x = (float) (bv.getXOffset() + containingIPPosition) / 1000f;
        y = (float) (bv.getYOffset() + containingBPPosition) / 1000f;
        // This is the content-rect
        float width = (float) bv.getIPD() / 1000f;
        float height = (float) bv.getBPD() / 1000f;




        if (bv.getPositioning() == Block.ABSOLUTE
                || bv.getPositioning() == Block.FIXED) {


            currentIPPosition = bv.getXOffset();
            currentBPPosition = bv.getYOffset();
            
            // TODO not tested yet
            // For FIXED, we need to break out of the current viewports to the
            // one established by the page. We save the state stack for
            // restoration
            // after the block-container has been painted. See below.
            List breakOutList = null;
            if (bv.getPositioning() == Block.FIXED) {
                log.debug("Block.FIXED --> break out");
                breakOutList = new java.util.ArrayList();
                Graphics2D graph;
                while (true) {
                    graph = state.getGraph();
                    if (state.pop() == null) {
                        break;
                    }
                    breakOutList.add(0, graph); // Insert because of
                    // stack-popping
                    log.debug("Adding to break out list: " + graph);
                }
            }


            CTM tempctm = new CTM(containingIPPosition, containingBPPosition);
            ctm = tempctm.multiply(ctm);


            // Adjust for spaces (from margin or indirectly by start-indent etc.
            x += bv.getSpaceStart() / 1000f;
            currentIPPosition += bv.getSpaceStart();
            
            y += bv.getSpaceBefore() / 1000f;
            currentBPPosition += bv.getSpaceBefore(); 


            float bpwidth = (borderPaddingStart + bv
                    .getBorderAndPaddingWidthEnd()) / 1000f;
            float bpheight = (borderPaddingBefore + bv
                    .getBorderAndPaddingWidthAfter()) / 1000f;


            drawBackAndBorders(bv, x, y, width + bpwidth, height + bpheight);


            // Now adjust for border/padding
            currentIPPosition += borderPaddingStart;
            currentBPPosition += borderPaddingBefore;


            Rectangle2D clippingRect = null;
            if (bv.getClip()) {
                clippingRect = new Rectangle(currentIPPosition, currentBPPosition, 
                        bv.getIPD(), bv.getBPD());
            }


            startVParea(ctm, clippingRect);
            currentIPPosition = 0;
            currentBPPosition = 0;
            renderBlocks(bv, children);
            endVParea();


            if (breakOutList != null) {
                log.debug(
                        "Block.FIXED --> restoring context after break-out");
                Graphics2D graph;
                Iterator i = breakOutList.iterator();
                while (i.hasNext()) {
                    graph = (Graphics2D) i.next();
                    log.debug("Restoring: " + graph);
                    state.push();
                }
            }


            currentIPPosition = saveIP;
            currentBPPosition = saveBP;


        } else { // orientation = Block.STACK or RELATIVE


            currentBPPosition += bv.getSpaceBefore();


            // borders and background in the old coordinate system
            handleBlockTraits(bv);


            //Advance to start of content area
            currentIPPosition += bv.getStartIndent();


            CTM tempctm = new CTM(containingIPPosition, currentBPPosition
                    + containingBPPosition);
            ctm = tempctm.multiply(ctm);


            // Now adjust for border/padding
            x += borderPaddingStart / 1000f;
            y += borderPaddingBefore / 1000f;

View Full Code Here

     * @param state instance of TXTState
     */
    public void transformElement(TXTState state) {
        // here we'll get CTM^-1 without shift
        double[] da = state.getResultCTM().toArray();
        CTM ctm = new CTM(da[0], -da[1], -da[2], da[3], 0, 0);


        Point[] pa = new Point[4];
        pa[0] = new Point(0, data[UP]);
        pa[1] = new Point(data[RIGHT], 0);
        pa[2] = new Point(0, -data[DOWN]);

View Full Code Here

            Rectangle2D clippingRect = null;
            if (bv.getClip()) {
                clippingRect = new Rectangle(saveIP, saveBP, bv.getIPD(), bv.getIPD());
            }
            
            CTM ctm = bv.getCTM();
            currentIPPosition = 0;
            currentBPPosition = 0;


            startVParea(ctm, clippingRect);
            handleBlockTraits(bv);

View Full Code Here


        // save positions
        int saveIP = currentIPPosition;
        int saveBP = currentBPPosition;


        CTM ctm = bv.getCTM();
        int borderPaddingStart = bv.getBorderAndPaddingWidthStart();
        int borderPaddingBefore = bv.getBorderAndPaddingWidthBefore();
        float x, y;
        x = (float) (bv.getXOffset() + containingIPPosition) / 1000f;
        y = (float) (bv.getYOffset() + containingBPPosition) / 1000f;
        // This is the content-rect
        float width = (float) bv.getIPD() / 1000f;
        float height = (float) bv.getBPD() / 1000f;




        if (bv.getPositioning() == Block.ABSOLUTE
                || bv.getPositioning() == Block.FIXED) {


            currentIPPosition = bv.getXOffset();
            currentBPPosition = bv.getYOffset();
            
            // TODO not tested yet
            // For FIXED, we need to break out of the current viewports to the
            // one established by the page. We save the state stack for
            // restoration
            // after the block-container has been painted. See below.
            List breakOutList = null;
            if (bv.getPositioning() == Block.FIXED) {
                log.debug("Block.FIXED --> break out");
                breakOutList = new java.util.ArrayList();
                Graphics2D graph;
                while (true) {
                    graph = state.getGraph();
                    if (state.pop() == null) {
                        break;
                    }
                    breakOutList.add(0, graph); // Insert because of
                    // stack-popping
                    log.debug("Adding to break out list: " + graph);
                }
            }


            CTM tempctm = new CTM(containingIPPosition, containingBPPosition);
            ctm = tempctm.multiply(ctm);


            // Adjust for spaces (from margin or indirectly by start-indent etc.
            x += bv.getSpaceStart() / 1000f;
            currentIPPosition += bv.getSpaceStart();
            
            y += bv.getSpaceBefore() / 1000f;
            currentBPPosition += bv.getSpaceBefore(); 


            float bpwidth = (borderPaddingStart + bv
                    .getBorderAndPaddingWidthEnd()) / 1000f;
            float bpheight = (borderPaddingBefore + bv
                    .getBorderAndPaddingWidthAfter()) / 1000f;


            drawBackAndBorders(bv, x, y, width + bpwidth, height + bpheight);


            // Now adjust for border/padding
            currentIPPosition += borderPaddingStart;
            currentBPPosition += borderPaddingBefore;


            Rectangle2D clippingRect = null;
            if (bv.getClip()) {
                clippingRect = new Rectangle(currentIPPosition, currentBPPosition, 
                        bv.getIPD(), bv.getBPD());
            }


            startVParea(ctm, clippingRect);
            currentIPPosition = 0;
            currentBPPosition = 0;
            renderBlocks(bv, children);
            endVParea();


            if (breakOutList != null) {
                log.debug(
                        "Block.FIXED --> restoring context after break-out");
                Graphics2D graph;
                Iterator i = breakOutList.iterator();
                while (i.hasNext()) {
                    graph = (Graphics2D) i.next();
                    log.debug("Restoring: " + graph);
                    state.push();
                }
            }


            currentIPPosition = saveIP;
            currentBPPosition = saveBP;


        } else { // orientation = Block.STACK or RELATIVE


            currentBPPosition += bv.getSpaceBefore();


            // borders and background in the old coordinate system
            handleBlockTraits(bv);


            //Advance to start of content area
            currentIPPosition += bv.getStartIndent();


            CTM tempctm = new CTM(containingIPPosition, currentBPPosition
                    + containingBPPosition);
            ctm = tempctm.multiply(ctm);


            // Now adjust for border/padding
            x += borderPaddingStart / 1000f;
            y += borderPaddingBefore / 1000f;

View Full Code Here

    /**
     * Restores the state stack after a break out.
     * @param breakOutList the state stack to restore.
     */
    protected void restoreStateStackAfterBreakOut(List breakOutList) {
        CTM tempctm;
        comment("------ restoring context after break-out...");
        PDFState.Data data;
        Iterator i = breakOutList.iterator();
        double[] matrix = new double[6];
        while (i.hasNext()) {
            data = (PDFState.Data)i.next();
            currentState.push();
            saveGraphicsState();
            AffineTransform at = data.getTransform();
            if (!at.isIdentity()) {
                currentState.setTransform(at);
                at.getMatrix(matrix);
                tempctm = new CTM(matrix[0], matrix[1], matrix[2], matrix[3], 
                                  matrix[4] * 1000, matrix[5] * 1000);
                currentStream.add(CTMHelper.toPDFString(tempctm) + " cm\n");
            }
            //TODO Break-out: Also restore items such as line width and color
            //Left out for now because all this painting stuff is very

View Full Code Here

        if (bv.getPositioning() == Block.ABSOLUTE) {
            // save positions
            int saveIP = currentIPPosition;
            int saveBP = currentBPPosition;


            CTM ctm = bv.getCTM();
            currentIPPosition = 0;
            currentBPPosition = 0;


            startVParea(ctm);
            handleBlockTraits(bv);

View Full Code Here

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