List of usage examples for android.view View getMatrix
public Matrix getMatrix()
From source file:Main.java
/** * Inverse of {@link #getDescendantCoordRelativeToSelf(View, int[])}. *//*from w ww. j ava 2 s .c o m*/ public static float mapCoordInSelfToDescendent(View descendant, View root, int[] coord) { 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; Matrix inverse = new Matrix(); int count = ancestorChain.size(); 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(inverse); inverse.mapPoints(pt); scale *= next.getScaleX(); } } coord[0] = (int) Math.round(pt[0]); coord[1] = (int) Math.round(pt[1]); return scale; }
From source file:Main.java
public static void invalidateGlobalRegion(View view, RectF childBounds) { //childBounds.offset(view.getTranslationX(), view.getTranslationY()); if (DEBUG_INVALIDATE) Log.v(TAG, "-------------"); while (view.getParent() != null && view.getParent() instanceof View) { view = (View) view.getParent(); view.getMatrix().mapRect(childBounds); view.invalidate((int) Math.floor(childBounds.left), (int) Math.floor(childBounds.top), (int) Math.ceil(childBounds.right), (int) Math.ceil(childBounds.bottom)); if (DEBUG_INVALIDATE) { Log.v(TAG,/*w w w. j av a 2 s . co m*/ "INVALIDATE(" + (int) Math.floor(childBounds.left) + "," + (int) Math.floor(childBounds.top) + "," + (int) Math.ceil(childBounds.right) + "," + (int) Math.ceil(childBounds.bottom)); } } }
From source file:Main.java
/** * Maps a coorindate in a descendant view into the parent. *///from ww w . ja v a2s.com public static float mapCoordInDescendentToSelf(View descendant, View root, float[] coord, boolean includeRootScroll) { ArrayList<View> ancestorChain = new ArrayList<View>(); float[] pt = { coord[0], coord[1] }; View v = descendant; while (v != root && v != null) { ancestorChain.add(v); v = (View) v.getParent(); } ancestorChain.add(root); float scale = 1.0f; int count = ancestorChain.size(); for (int i = 0; i < count; i++) { View v0 = ancestorChain.get(i); // For TextViews, scroll has a meaning which relates to the text position // which is very strange... ignore the scroll. if (v0 != descendant || includeRootScroll) { pt[0] -= v0.getScrollX(); pt[1] -= v0.getScrollY(); } v0.getMatrix().mapPoints(pt); pt[0] += v0.getLeft(); pt[1] += v0.getTop(); scale *= v0.getScaleX(); } coord[0] = pt[0]; coord[1] = pt[1]; return scale; }
From source file:Main.java
/** * Maps a coordinate in a descendant view into the parent. *///from w w w. j a va 2 s .c o m public static float mapCoordInDescendentToSelf(View descendant, View root, float[] coord, boolean includeRootScroll) { ArrayList<View> ancestorChain = new ArrayList<>(); float[] pt = { coord[0], coord[1] }; View v = descendant; while (v != root && v != null) { ancestorChain.add(v); v = (View) v.getParent(); } ancestorChain.add(root); float scale = 1.0f; int count = ancestorChain.size(); for (int i = 0; i < count; i++) { View v0 = ancestorChain.get(i); // For TextViews, scroll has a meaning which relates to the text position // which is very strange... ignore the scroll. if (v0 != descendant || includeRootScroll) { pt[0] -= v0.getScrollX(); pt[1] -= v0.getScrollY(); } v0.getMatrix().mapPoints(pt); pt[0] += v0.getLeft(); pt[1] += v0.getTop(); scale *= v0.getScaleX(); } coord[0] = pt[0]; coord[1] = pt[1]; return scale; }
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 ww.ja v a 2s . c om m.preTranslate(view.getLeft(), view.getTop()); if (!view.getMatrix().isIdentity()) { m.preConcat(view.getMatrix()); } }
From source file:Main.java
/** * Given a coordinate relative to the descendant, find the coordinate in a parent view's * coordinates./* w w w. j av a 2 s . c o m*/ * * @param descendant The descendant to which the passed coordinate is relative. * @param root The root view to make the coordinates relative to. * @param coord The coordinate that we want mapped. * @param includeRootScroll Whether or not to account for the scroll of the descendant: * sometimes this is relevant as in a child's coordinates within the descendant. * @return The factor by which this descendant is scaled relative to this DragLayer. Caution * this scale factor is assumed to be equal in X and Y, and so if at any point this * assumption fails, we will need to return a pair of scale factors. */ public static float getDescendantCoordRelativeToParent(View descendant, View root, int[] coord, boolean includeRootScroll) { ArrayList<View> ancestorChain = new ArrayList<View>(); float[] pt = { coord[0], coord[1] }; View v = descendant; while (v != root && v != null) { ancestorChain.add(v); v = (View) v.getParent(); } ancestorChain.add(root); float scale = 1.0f; int count = ancestorChain.size(); for (int i = 0; i < count; i++) { View v0 = ancestorChain.get(i); // For TextViews, scroll has a meaning which relates to the text position // which is very strange... ignore the scroll. if (v0 != descendant || includeRootScroll) { pt[0] -= v0.getScrollX(); pt[1] -= v0.getScrollY(); } v0.getMatrix().mapPoints(pt); pt[0] += v0.getLeft(); pt[1] += v0.getTop(); scale *= v0.getScaleX(); } coord[0] = (int) Math.round(pt[0]); coord[1] = (int) Math.round(pt[1]); return scale; }
From source file:Main.java
/** * Maps a coordinate in the root to a descendent. *//*from ww w . j a va 2s.co 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; }
From source file:Main.java
/** * Maps a coordinate in the root to a descendent. */// w w w . ja va2 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; }
From source file:android.support.transition.ChangeTransform.java
private void captureValues(TransitionValues transitionValues) { View view = transitionValues.view; if (view.getVisibility() == View.GONE) { return;/*w w w. jav a 2 s . c o m*/ } transitionValues.values.put(PROPNAME_PARENT, view.getParent()); Transforms transforms = new Transforms(view); transitionValues.values.put(PROPNAME_TRANSFORMS, transforms); Matrix matrix = view.getMatrix(); if (matrix == null || matrix.isIdentity()) { matrix = null; } else { matrix = new Matrix(matrix); } transitionValues.values.put(PROPNAME_MATRIX, matrix); if (mReparent) { Matrix parentMatrix = new Matrix(); ViewGroup parent = (ViewGroup) view.getParent(); ViewUtils.transformMatrixToGlobal(parent, parentMatrix); parentMatrix.preTranslate(-parent.getScrollX(), -parent.getScrollY()); transitionValues.values.put(PROPNAME_PARENT_MATRIX, parentMatrix); transitionValues.values.put(PROPNAME_INTERMEDIATE_MATRIX, view.getTag(R.id.transition_transform)); transitionValues.values.put(PROPNAME_INTERMEDIATE_PARENT_MATRIX, view.getTag(R.id.parent_matrix)); } }
From source file:com.android.launcher3.Utilities.java
/** * Given a coordinate relative to the descendant, find the coordinate in a parent view's * coordinates.//from w w w.jav a2s. co m * * @param descendant The descendant to which the passed coordinate is relative. * @param ancestor The root view to make the coordinates relative to. * @param coord The coordinate that we want mapped. * @param includeRootScroll Whether or not to account for the scroll of the descendant: * sometimes this is relevant as in a child's coordinates within the descendant. * @return The factor by which this descendant is scaled relative to this DragLayer. Caution * this scale factor is assumed to be equal in X and Y, and so if at any point this * assumption fails, we will need to return a pair of scale factors. */ public static float getDescendantCoordRelativeToAncestor(View descendant, View ancestor, int[] coord, boolean includeRootScroll) { float[] pt = { coord[0], coord[1] }; float scale = 1.0f; View v = descendant; while (v != ancestor && v != null) { // For TextViews, scroll has a meaning which relates to the text position // which is very strange... ignore the scroll. if (v != descendant || includeRootScroll) { pt[0] -= v.getScrollX(); pt[1] -= v.getScrollY(); } v.getMatrix().mapPoints(pt); pt[0] += v.getLeft(); pt[1] += v.getTop(); scale *= v.getScaleX(); v = (View) v.getParent(); } coord[0] = Math.round(pt[0]); coord[1] = Math.round(pt[1]); return scale; }