| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.launcher3.shortcuts; |
| |
| import android.graphics.Bitmap; |
| import android.graphics.Canvas; |
| import android.graphics.Point; |
| import android.graphics.Rect; |
| import android.graphics.drawable.Drawable; |
| import android.view.View; |
| import android.widget.ImageView; |
| |
| import com.android.launcher3.BubbleTextView; |
| import com.android.launcher3.HolographicOutlineHelper; |
| import com.android.launcher3.Launcher; |
| import com.android.launcher3.R; |
| import com.android.launcher3.Utilities; |
| import com.android.launcher3.graphics.DragPreviewProvider; |
| |
| /** |
| * Extension of {@link DragPreviewProvider} which generates bitmaps scaled to the default icon size. |
| */ |
| public class ShortcutDragPreviewProvider extends DragPreviewProvider { |
| |
| private final Point mPositionShift; |
| |
| public ShortcutDragPreviewProvider(View icon, Point shift) { |
| super(icon); |
| mPositionShift = shift; |
| } |
| |
| @Override |
| public Bitmap createDragOutline(Canvas canvas) { |
| Bitmap b = drawScaledPreview(canvas); |
| |
| final int outlineColor = mView.getResources().getColor(R.color.outline_color); |
| HolographicOutlineHelper.obtain(mView.getContext()) |
| .applyExpensiveOutlineWithBlur(b, canvas, outlineColor, outlineColor); |
| canvas.setBitmap(null); |
| return b; |
| } |
| |
| @Override |
| public Bitmap createDragBitmap(Canvas canvas) { |
| Bitmap b = drawScaledPreview(canvas); |
| canvas.setBitmap(null); |
| return b; |
| } |
| |
| private Bitmap drawScaledPreview(Canvas canvas) { |
| Drawable d = mView.getBackground(); |
| Rect bounds = getDrawableBounds(d); |
| |
| int size = Launcher.getLauncher(mView.getContext()).getDeviceProfile().iconSizePx; |
| |
| final Bitmap b = Bitmap.createBitmap( |
| size + DRAG_BITMAP_PADDING, |
| size + DRAG_BITMAP_PADDING, |
| Bitmap.Config.ARGB_8888); |
| |
| canvas.setBitmap(b); |
| canvas.save(Canvas.MATRIX_SAVE_FLAG); |
| canvas.translate(DRAG_BITMAP_PADDING / 2, DRAG_BITMAP_PADDING / 2); |
| canvas.scale(((float) size) / bounds.width(), ((float) size) / bounds.height(), 0, 0); |
| canvas.translate(bounds.left, bounds.top); |
| d.draw(canvas); |
| canvas.restore(); |
| return b; |
| } |
| |
| @Override |
| public float getScaleAndPosition(Bitmap preview, int[] outPos) { |
| Launcher launcher = Launcher.getLauncher(mView.getContext()); |
| int iconSize = getDrawableBounds(mView.getBackground()).width(); |
| float scale = launcher.getDragLayer().getLocationInDragLayer(mView, outPos); |
| |
| int iconLeft = mView.getPaddingStart(); |
| if (Utilities.isRtl(mView.getResources())) { |
| iconLeft = mView.getWidth() - iconSize - iconLeft; |
| } |
| |
| outPos[0] += Math.round(scale * iconLeft + (scale * iconSize - preview.getWidth()) / 2 + |
| mPositionShift.x); |
| outPos[1] += Math.round((scale * mView.getHeight() - preview.getHeight()) / 2 |
| + mPositionShift.y); |
| float size = launcher.getDeviceProfile().iconSizePx; |
| return scale * iconSize / size; |
| } |
| } |