Example usage for android.graphics Matrix set

Introduction

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

Prototype

public void set(Matrix src) 

Source Link

Document

(deep) copy the src matrix into this matrix.

Usage

From source file:Main.java

static void offsetDescendantRect(ViewGroup group, View child, Rect rect) {
    Matrix m = sMatrix.get();
    if (m == null) {
        m = new Matrix();
        sMatrix.set(m);// w  ww  . j av a2  s.co  m
    } else {
        m.set(IDENTITY);
    }

    offsetDescendantMatrix(group, child, m);

    RectF rectF = sRectF.get();
    if (rectF == null) {
        rectF = new RectF();
    }
    rectF.set(rect);
    m.mapRect(rectF);
    rect.set((int) (rectF.left + 0.5f), (int) (rectF.top + 0.5f), (int) (rectF.right + 0.5f),
            (int) (rectF.bottom + 0.5f));
}

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From source file:Main.java

public static void offsetDescendantRect(ViewGroup group, View child, Rect rect) {
    Matrix m = sMatrix.get();
    if (m == null) {
        m = new Matrix();
        sMatrix.set(m);//w ww .j av a2  s. c  o m
    } else {
        m.set(IDENTITY);
    }

    offsetDescendantMatrix(group, child, m);

    RectF rectF = sRectF.get();
    if (rectF == null) {
        rectF = new RectF();
    }
    rectF.set(rect);
    m.mapRect(rectF);
    rect.set((int) (rectF.left + 0.5f), (int) (rectF.top + 0.5f), (int) (rectF.right + 0.5f),
            (int) (rectF.bottom + 0.5f));
}

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From source file:Main.java

/**
 * Maps a coordinate in the root to a descendent.
 *///from  www .  j a  va2  s  .  c o m
public static float mapCoordInSelfToDescendent(View descendant, View root, float[] coord,
        Matrix tmpInverseMatrix) {
    ArrayList<View> ancestorChain = new ArrayList<View>();

    float[] pt = { coord[0], coord[1] };

    View v = descendant;
    while (v != root) {
        ancestorChain.add(v);
        v = (View) v.getParent();
    }
    ancestorChain.add(root);

    float scale = 1.0f;
    int count = ancestorChain.size();
    tmpInverseMatrix.set(IDENTITY_MATRIX);
    for (int i = count - 1; i >= 0; i--) {
        View ancestor = ancestorChain.get(i);
        View next = i > 0 ? ancestorChain.get(i - 1) : null;

        pt[0] += ancestor.getScrollX();
        pt[1] += ancestor.getScrollY();

        if (next != null) {
            pt[0] -= next.getLeft();
            pt[1] -= next.getTop();
            next.getMatrix().invert(tmpInverseMatrix);
            tmpInverseMatrix.mapPoints(pt);
            scale *= next.getScaleX();
        }
    }

    coord[0] = pt[0];
    coord[1] = pt[1];
    return scale;
}

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From source file:Main.java

/**
 * Maps a coordinate in the root to a descendent.
 *///from   w  w  w. j a  v  a  2 s  . co m
public static float mapCoordInSelfToDescendent(View descendant, View root, float[] coord,
        Matrix tmpInverseMatrix) {
    ArrayList<View> ancestorChain = new ArrayList<>();

    float[] pt = { coord[0], coord[1] };

    View v = descendant;
    while (v != root) {
        ancestorChain.add(v);
        v = (View) v.getParent();
    }
    ancestorChain.add(root);

    float scale = 1.0f;
    int count = ancestorChain.size();
    tmpInverseMatrix.set(IDENTITY_MATRIX);
    for (int i = count - 1; i >= 0; i--) {
        View ancestor = ancestorChain.get(i);
        View next = i > 0 ? ancestorChain.get(i - 1) : null;

        pt[0] += ancestor.getScrollX();
        pt[1] += ancestor.getScrollY();

        if (next != null) {
            pt[0] -= next.getLeft();
            pt[1] -= next.getTop();
            next.getMatrix().invert(tmpInverseMatrix);
            tmpInverseMatrix.mapPoints(pt);
            scale *= next.getScaleX();
        }
    }

    coord[0] = pt[0];
    coord[1] = pt[1];
    return scale;
}

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From source file:com.iped.ipcam.bitmapfun.ImageDetailFragment.java

protected void center(boolean horizontal, boolean vertical) {

    Matrix m = new Matrix();
    m.set(matrix);
    RectF rect = new RectF(0, 0, bitmap.getWidth(), bitmap.getHeight());
    m.mapRect(rect);/* ww  w. j  av  a2 s  .c  om*/
    float height = rect.height();
    float width = rect.width();
    float deltaX = 0, deltaY = 0;

    if (vertical) {
        int screenHeight = dm.heightPixels;
        if (height <= screenHeight) {
            deltaY = (screenHeight - height) / 2 - rect.top;
        } else if (rect.top > 0) {
            deltaY = -rect.top;
        } else if (rect.bottom < screenHeight) {
            deltaY = screenHeight - rect.bottom;
        }
    }

    if (horizontal) {
        int screenWidth = dm.widthPixels;
        if (width <= screenWidth) {
            deltaX = (screenWidth - width) / 2 - rect.left;
        } else if (rect.left > 0) {
            deltaX = -rect.left;
        } else if (rect.right < screenWidth) {
            deltaX = screenWidth - rect.right;
        }
    }
    matrix.postTranslate(deltaX, deltaY);
}

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From source file:com.frank.protean.photoview.PhotoViewAttacher.java

/**
 * Get the display matrix//ww w . j  a  v a  2  s .  com
 *
 * @param matrix target matrix to copy to
 */
public void getDisplayMatrix(Matrix matrix) {
    matrix.set(getDrawMatrix());
}

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From source file:com.example.photoviewlib.PhotoViewAttacher.java

@Override
public void getDisplayMatrix(Matrix matrix) {
    matrix.set(getDrawMatrix());
}

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From source file:baizhuan.hangzhou.com.gankcopy.view.customview.photoview.PhotoViewAttacher.java

/**
 * Get the current support matrix
 */
public void getSuppMatrix(Matrix matrix) {
    matrix.set(mSuppMatrix);
}

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From source file:baizhuan.hangzhou.com.gankcopy.view.customview.photoview.PhotoViewAttacher.java

/**
 * Like {@link #getDisplayMatrix()}, but allows the user to provide a matrix to copy the values into to reduce object allocation
 * @param matrix target matrix to copy to
 *///ww w. ja  va 2s . c o m
@Override
public void getDisplayMatrix(Matrix matrix) {
    matrix.set(getDrawMatrix());
}

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