Example usage for android.graphics Matrix preConcat

Introduction

In this page you can find the example usage for android.graphics Matrix preConcat.

Prototype

public boolean preConcat(Matrix other) 

Source Link

Document

Preconcats the matrix with the specified matrix.

Usage

From source file:Main.java

static void offsetDescendantMatrix(ViewParent target, View view, Matrix m) {
    final ViewParent parent = view.getParent();
    if (parent instanceof View && parent != target) {
        final View vp = (View) parent;
        offsetDescendantMatrix(target, vp, m);
        m.preTranslate(-vp.getScrollX(), -vp.getScrollY());
    }/*from w w  w  .ja  v  a  2 s  . c  o  m*/

    m.preTranslate(view.getLeft(), view.getTop());

    if (!view.getMatrix().isIdentity()) {
        m.preConcat(view.getMatrix());
    }
}

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From source file:com.jiahuan.svgmapview.core.helper.map.SVGParser.java

private static Matrix parseTransformItem(String s, Matrix matrix) {
    if (s.startsWith("matrix(")) {
        NumberParse np = parseNumbers(s.substring("matrix(".length()));
        if (np.numbers.size() == 6) {
            Matrix mat = new Matrix();
            mat.setValues(new float[] {
                    // Row 1
                    np.numbers.get(0), np.numbers.get(2), np.numbers.get(4),
                    // Row 2
                    np.numbers.get(1), np.numbers.get(3), np.numbers.get(5),
                    // Row 3
                    0, 0, 1, });//from   w w w .j a v  a2s  . c o  m
            matrix.preConcat(mat);
        }
    } else if (s.startsWith("translate(")) {
        NumberParse np = parseNumbers(s.substring("translate(".length()));
        if (np.numbers.size() > 0) {
            float tx = np.numbers.get(0);
            float ty = 0;
            if (np.numbers.size() > 1) {
                ty = np.numbers.get(1);
            }
            matrix.preTranslate(tx, ty);
        }
    } else if (s.startsWith("scale(")) {
        NumberParse np = parseNumbers(s.substring("scale(".length()));
        if (np.numbers.size() > 0) {
            float sx = np.numbers.get(0);
            float sy = sx;
            if (np.numbers.size() > 1) {
                sy = np.numbers.get(1);
            }
            matrix.preScale(sx, sy);
        }
    } else if (s.startsWith("skewX(")) {
        NumberParse np = parseNumbers(s.substring("skewX(".length()));
        if (np.numbers.size() > 0) {
            float angle = np.numbers.get(0);
            matrix.preSkew((float) Math.tan(angle), 0);
        }
    } else if (s.startsWith("skewY(")) {
        NumberParse np = parseNumbers(s.substring("skewY(".length()));
        if (np.numbers.size() > 0) {
            float angle = np.numbers.get(0);
            matrix.preSkew(0, (float) Math.tan(angle));
        }
    } else if (s.startsWith("rotate(")) {
        NumberParse np = parseNumbers(s.substring("rotate(".length()));
        if (np.numbers.size() > 0) {
            float angle = np.numbers.get(0);
            float cx = 0;
            float cy = 0;
            if (np.numbers.size() > 2) {
                cx = np.numbers.get(1);
                cy = np.numbers.get(2);
            }
            matrix.preTranslate(-cx, -cy);
            matrix.preRotate(angle);
            matrix.preTranslate(cx, cy);
        }
    } else {
        Log.w(TAG, "Invalid transform (" + s + ")");
    }
    return matrix;
}

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From source file:com.larvalabs.svgandroid.SVGParser.java

private static Matrix parseTransformItem(String s, Matrix matrix) {
    if (s.startsWith("matrix(")) {
        NumberParse np = parseNumbers(s.substring("matrix(".length()));
        if (np.numbers.size() == 6) {
            Matrix mat = new Matrix();
            mat.setValues(new float[] {
                    // Row 1
                    np.numbers.get(0), np.numbers.get(2), np.numbers.get(4),
                    // Row 2
                    np.numbers.get(1), np.numbers.get(3), np.numbers.get(5),
                    // Row 3
                    0, 0, 1, });/*ww  w. java2  s  . co  m*/
            matrix.preConcat(mat);
        }
    } else if (s.startsWith("translate(")) {
        NumberParse np = parseNumbers(s.substring("translate(".length()));
        if (np.numbers.size() > 0) {
            float tx = np.numbers.get(0);
            float ty = 0;
            if (np.numbers.size() > 1) {
                ty = np.numbers.get(1);
            }
            matrix.preTranslate(tx, ty);
        }
    } else if (s.startsWith("scale(")) {
        NumberParse np = parseNumbers(s.substring("scale(".length()));
        if (np.numbers.size() > 0) {
            float sx = np.numbers.get(0);
            float sy = sx;
            if (np.numbers.size() > 1) {
                sy = np.numbers.get(1);
            }
            matrix.preScale(sx, sy);
        }
    } else if (s.startsWith("skewX(")) {
        NumberParse np = parseNumbers(s.substring("skewX(".length()));
        if (np.numbers.size() > 0) {
            float angle = np.numbers.get(0);
            matrix.preSkew((float) Math.tan(angle), 0);
        }
    } else if (s.startsWith("skewY(")) {
        NumberParse np = parseNumbers(s.substring("skewY(".length()));
        if (np.numbers.size() > 0) {
            float angle = np.numbers.get(0);
            matrix.preSkew(0, (float) Math.tan(angle));
        }
    } else if (s.startsWith("rotate(")) {
        NumberParse np = parseNumbers(s.substring("rotate(".length()));
        if (np.numbers.size() > 0) {
            float angle = np.numbers.get(0);
            float cx = 0;
            float cy = 0;
            if (np.numbers.size() > 2) {
                cx = np.numbers.get(1);
                cy = np.numbers.get(2);
            }
            matrix.preTranslate(cx, cy);
            matrix.preRotate(angle);
            matrix.preTranslate(-cx, -cy);
        }
    } else {
        Log.i(TAG, "Invalid transform (" + s + ")");
    }
    return matrix;
}

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