Craig Mautner | a9a3fb1 | 2013-04-18 10:01:00 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server.wm; |
| 18 | |
| 19 | import static com.android.server.wm.WindowManagerService.DEBUG_STACK; |
Craig Mautner | f766646 | 2013-04-28 08:58:21 -0700 | [diff] [blame] | 20 | import static com.android.server.wm.WindowManagerService.DEBUG_SURFACE_TRACE; |
Craig Mautner | a9a3fb1 | 2013-04-18 10:01:00 -0700 | [diff] [blame] | 21 | |
| 22 | import android.graphics.Canvas; |
| 23 | import android.graphics.Color; |
| 24 | import android.graphics.PixelFormat; |
| 25 | import android.graphics.Rect; |
| 26 | import android.graphics.Region; |
| 27 | import android.util.Slog; |
| 28 | import android.view.Display; |
| 29 | import android.view.Surface; |
| 30 | import android.view.SurfaceControl; |
| 31 | import android.view.SurfaceSession; |
| 32 | |
Craig Mautner | f766646 | 2013-04-28 08:58:21 -0700 | [diff] [blame] | 33 | import com.android.server.wm.WindowStateAnimator.SurfaceTrace; |
| 34 | |
Craig Mautner | a9a3fb1 | 2013-04-18 10:01:00 -0700 | [diff] [blame] | 35 | class FocusedStackFrame { |
| 36 | private static final String TAG = "FocusedStackFrame"; |
| 37 | private static final int THICKNESS = 10; |
| 38 | private static final float ALPHA = 0.3f; |
| 39 | |
| 40 | private final SurfaceControl mSurfaceControl; |
| 41 | private final Surface mSurface = new Surface(); |
| 42 | private Rect mLastBounds = new Rect(); |
| 43 | private Rect mBounds = new Rect(); |
| 44 | private Rect mTmpDrawRect = new Rect(); |
| 45 | |
| 46 | public FocusedStackFrame(Display display, SurfaceSession session) { |
| 47 | SurfaceControl ctrl = null; |
| 48 | try { |
Craig Mautner | f766646 | 2013-04-28 08:58:21 -0700 | [diff] [blame] | 49 | if (DEBUG_SURFACE_TRACE) { |
| 50 | ctrl = new SurfaceTrace(session, "FocusedStackFrame", |
| 51 | 1, 1, PixelFormat.TRANSLUCENT, SurfaceControl.HIDDEN); |
| 52 | } else { |
| 53 | ctrl = new SurfaceControl(session, "FocusedStackFrame", |
| 54 | 1, 1, PixelFormat.TRANSLUCENT, SurfaceControl.HIDDEN); |
| 55 | } |
Craig Mautner | a9a3fb1 | 2013-04-18 10:01:00 -0700 | [diff] [blame] | 56 | ctrl.setLayerStack(display.getLayerStack()); |
Craig Mautner | a9a3fb1 | 2013-04-18 10:01:00 -0700 | [diff] [blame] | 57 | ctrl.setAlpha(ALPHA); |
| 58 | mSurface.copyFrom(ctrl); |
| 59 | } catch (SurfaceControl.OutOfResourcesException e) { |
| 60 | } |
| 61 | mSurfaceControl = ctrl; |
| 62 | } |
| 63 | |
| 64 | private void draw(Rect bounds, int color) { |
| 65 | if (DEBUG_STACK) Slog.i(TAG, "draw: bounds=" + bounds.toShortString() + |
| 66 | " color=" + Integer.toHexString(color)); |
| 67 | mTmpDrawRect.set(bounds); |
| 68 | Canvas c = null; |
| 69 | try { |
| 70 | c = mSurface.lockCanvas(mTmpDrawRect); |
| 71 | } catch (IllegalArgumentException e) { |
| 72 | } catch (Surface.OutOfResourcesException e) { |
| 73 | } |
| 74 | if (c == null) { |
| 75 | return; |
| 76 | } |
| 77 | |
| 78 | final int w = bounds.width(); |
| 79 | final int h = bounds.height(); |
| 80 | |
| 81 | // Top |
| 82 | mTmpDrawRect.set(0, 0, w, THICKNESS); |
| 83 | c.clipRect(mTmpDrawRect, Region.Op.REPLACE); |
| 84 | c.drawColor(color); |
| 85 | // Left (not including Top or Bottom stripe). |
| 86 | mTmpDrawRect.set(0, THICKNESS, THICKNESS, h - THICKNESS); |
| 87 | c.clipRect(mTmpDrawRect, Region.Op.REPLACE); |
| 88 | c.drawColor(color); |
| 89 | // Right (not including Top or Bottom stripe). |
| 90 | mTmpDrawRect.set(w - THICKNESS, THICKNESS, w, h - THICKNESS); |
| 91 | c.clipRect(mTmpDrawRect, Region.Op.REPLACE); |
| 92 | c.drawColor(color); |
| 93 | // Bottom |
| 94 | mTmpDrawRect.set(0, h - THICKNESS, w, h); |
| 95 | c.clipRect(mTmpDrawRect, Region.Op.REPLACE); |
| 96 | c.drawColor(color); |
| 97 | |
| 98 | mSurface.unlockCanvasAndPost(c); |
| 99 | } |
| 100 | |
| 101 | private void positionSurface(Rect bounds) { |
| 102 | if (DEBUG_STACK) Slog.i(TAG, "positionSurface: bounds=" + bounds.toShortString()); |
| 103 | mSurfaceControl.setSize(bounds.width(), bounds.height()); |
| 104 | mSurfaceControl.setPosition(bounds.left, bounds.top); |
| 105 | } |
| 106 | |
| 107 | // Note: caller responsible for being inside |
| 108 | // Surface.openTransaction() / closeTransaction() |
| 109 | public void setVisibility(boolean on) { |
| 110 | if (DEBUG_STACK) Slog.i(TAG, "setVisibility: on=" + on + |
| 111 | " mLastBounds=" + mLastBounds.toShortString() + |
| 112 | " mBounds=" + mBounds.toShortString()); |
| 113 | if (mSurfaceControl == null) { |
| 114 | return; |
| 115 | } |
| 116 | if (on) { |
| 117 | if (!mLastBounds.equals(mBounds)) { |
| 118 | // Erase the previous rectangle. |
| 119 | positionSurface(mLastBounds); |
| 120 | draw(mLastBounds, Color.TRANSPARENT); |
| 121 | // Draw the latest rectangle. |
| 122 | positionSurface(mBounds); |
| 123 | draw(mBounds, Color.WHITE); |
| 124 | // Update the history. |
| 125 | mLastBounds.set(mBounds); |
| 126 | } |
| 127 | mSurfaceControl.show(); |
| 128 | } else { |
| 129 | mSurfaceControl.hide(); |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | public void setBounds(Rect bounds) { |
| 134 | if (DEBUG_STACK) Slog.i(TAG, "setBounds: bounds=" + bounds); |
| 135 | mBounds.set(bounds); |
| 136 | } |
Craig Mautner | f766646 | 2013-04-28 08:58:21 -0700 | [diff] [blame] | 137 | |
| 138 | public void setLayer(int layer) { |
| 139 | mSurfaceControl.setLayer(layer); |
| 140 | } |
Craig Mautner | a9a3fb1 | 2013-04-18 10:01:00 -0700 | [diff] [blame] | 141 | } |