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/*
* Copyright (C) 2012 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.server.display;
import android.graphics.Rect;
/**
* Describes how the pixels of physical display device reflects the content of
* a logical display.
* <p>
* This information is used by the input system to translate touch input from
* physical display coordinates into logical display coordinates.
* </p>
*/
public final class DisplayViewport {
// True if this viewport is valid.
public boolean valid;
// The logical display id.
public int displayId;
// The rotation applied to the physical coordinate system.
public int orientation;
// The portion of the logical display that are presented on this physical display.
public final Rect logicalFrame = new Rect();
// The portion of the (rotated) physical display that shows the logical display contents.
// The relation between logical and physical frame defines how the coordinate system
// should be scaled or translated after rotation.
public final Rect physicalFrame = new Rect();
// The full width and height of the display device, rotated in the same
// manner as physicalFrame. This expresses the full native size of the display device.
// The physical frame should usually fit within this area.
public int deviceWidth;
public int deviceHeight;
public void copyFrom(DisplayViewport viewport) {
valid = viewport.valid;
displayId = viewport.displayId;
orientation = viewport.orientation;
logicalFrame.set(viewport.logicalFrame);
physicalFrame.set(viewport.physicalFrame);
deviceWidth = viewport.deviceWidth;
deviceHeight = viewport.deviceHeight;
}
// For debugging purposes.
@Override
public String toString() {
return "DisplayViewport{valid=" + valid
+ ", displayId=" + displayId
+ ", orientation=" + orientation
+ ", logicalFrame=" + logicalFrame
+ ", physicalFrame=" + physicalFrame
+ ", deviceWidth=" + deviceWidth
+ ", deviceHeight=" + deviceHeight
+ "}";
}
}
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