Add configuration for maximum UI width.
This changelist adds config_maxUiWidth, a new system resource
configuration which specifies the maximum width the user interface
can operate in. If the physical or specified width is greater than
this value, dimensions and density are scaled down accordingly. The
native mode resolution can be still discovered through
Display.Mode#getPhysicalWidth/getPhysicalHeight.
Test: Defined override for development device and verified values.
Test: bit FrameworksServicesTests:com.android.server.wm.DisplayContentTests#testMaxUiWidth
Change-Id: I12e7ad52f2aa8014e143bc7e80b020c9b24ed9c8
Fixes: 25820708
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 8f391a7..aa85574 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -175,6 +175,7 @@
private boolean mTmpRecoveringMemory;
private boolean mUpdateImeTarget;
private boolean mTmpInitial;
+ private int mMaxUiWidth;
// Mapping from a token IBinder to a WindowToken object on this display.
private final HashMap<IBinder, WindowToken> mTokenMap = new HashMap();
@@ -1559,6 +1560,39 @@
}
}
+ /** Sets the maximum width the screen resolution can be */
+ void setMaxUiWidth(int width) {
+ if (DEBUG_DISPLAY) {
+ Slog.v(TAG_WM, "Setting max ui width:" + width + " on display:" + getDisplayId());
+ }
+
+ mMaxUiWidth = width;
+
+ // Update existing metrics.
+ updateBaseDisplayMetrics(mBaseDisplayWidth, mBaseDisplayHeight, mBaseDisplayDensity);
+ }
+
+ /** Update base (override) display metrics. */
+ void updateBaseDisplayMetrics(int baseWidth, int baseHeight, int baseDensity) {
+ mBaseDisplayWidth = baseWidth;
+ mBaseDisplayHeight = baseHeight;
+ mBaseDisplayDensity = baseDensity;
+
+ if (mMaxUiWidth > 0 && mBaseDisplayWidth > mMaxUiWidth) {
+ mBaseDisplayHeight = (mMaxUiWidth * mBaseDisplayHeight) / mBaseDisplayWidth;
+ mBaseDisplayDensity = (mMaxUiWidth * mBaseDisplayDensity) / mBaseDisplayWidth;
+ mBaseDisplayWidth = mMaxUiWidth;
+
+ if (DEBUG_DISPLAY) {
+ Slog.v(TAG_WM, "Applying config restraints:" + mBaseDisplayWidth + "x"
+ + mBaseDisplayHeight + " at density:" + mBaseDisplayDensity
+ + " on display:" + getDisplayId());
+ }
+ }
+
+ mBaseDisplayRect.set(0, 0, mBaseDisplayWidth, mBaseDisplayHeight);
+ }
+
void getContentRect(Rect out) {
out.set(mContentRect);
}