bc68a59c02
The input reader needs this information so that it knows how to interpolate touches on an external touch screen. Changed Display so that it asks the WindowManager what the real display size is (as opposed to the raw display size). This means it now takes into the forced display size set by adb shell am display-size. Replaced all calls to getRealWidth() / getRealHeight() / getRealMetrics() in the WindowManager and replaced them with direct usages of the mCurDisplayWidth / mCurDisplayHeight so that the WM doesn't end up making a reentrant Binder call into itself. Fixed the table status bar HeightReceiver so that it updates the height on all configuration changes since it is possible that the display size changed independently of an external HDMI display being plugged / unplugged. Improved the Display class documentation to make the distinctions betweeen the various sizes clearer. Change-Id: I3f75de559d3ebffed532ab46c4ae52c5e7f1da2b
112 lines
3.2 KiB
Java
112 lines
3.2 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.wm;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.PixelFormat;
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import android.graphics.Rect;
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import android.graphics.Region;
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import android.util.DisplayMetrics;
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import android.util.Slog;
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import android.view.Display;
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import android.view.Surface;
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import android.view.SurfaceSession;
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class StrictModeFlash {
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private static final String TAG = "StrictModeFlash";
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Surface mSurface;
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int mLastDW;
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int mLastDH;
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boolean mDrawNeeded;
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final int mThickness = 20;
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public StrictModeFlash(Display display, SurfaceSession session) {
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try {
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mSurface = new Surface(session, 0, "StrictModeFlash", -1, 1, 1, PixelFormat.TRANSLUCENT, 0);
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} catch (Surface.OutOfResourcesException e) {
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return;
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}
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mSurface.setLayer(WindowManagerService.TYPE_LAYER_MULTIPLIER * 101); // one more than Watermark? arbitrary.
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mSurface.setPosition(0, 0);
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mDrawNeeded = true;
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}
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private void drawIfNeeded() {
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if (!mDrawNeeded) {
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return;
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}
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mDrawNeeded = false;
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final int dw = mLastDW;
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final int dh = mLastDH;
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Rect dirty = new Rect(0, 0, dw, dh);
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Canvas c = null;
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try {
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c = mSurface.lockCanvas(dirty);
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} catch (IllegalArgumentException e) {
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} catch (Surface.OutOfResourcesException e) {
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}
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if (c == null) {
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return;
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}
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// Top
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c.clipRect(new Rect(0, 0, dw, mThickness), Region.Op.REPLACE);
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c.drawColor(Color.RED);
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// Left
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c.clipRect(new Rect(0, 0, mThickness, dh), Region.Op.REPLACE);
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c.drawColor(Color.RED);
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// Right
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c.clipRect(new Rect(dw - mThickness, 0, dw, dh), Region.Op.REPLACE);
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c.drawColor(Color.RED);
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// Bottom
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c.clipRect(new Rect(0, dh - mThickness, dw, dh), Region.Op.REPLACE);
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c.drawColor(Color.RED);
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mSurface.unlockCanvasAndPost(c);
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}
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// Note: caller responsible for being inside
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// Surface.openTransaction() / closeTransaction()
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public void setVisibility(boolean on) {
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if (mSurface == null) {
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return;
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}
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drawIfNeeded();
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if (on) {
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mSurface.show();
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} else {
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mSurface.hide();
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}
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}
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void positionSurface(int dw, int dh) {
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if (mLastDW == dw && mLastDH == dh) {
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return;
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}
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mLastDW = dw;
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mLastDH = dh;
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mSurface.setSize(dw, dh);
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mDrawNeeded = true;
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}
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}
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