packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java - platform/frameworks/base - Git at Google

 /*
  * Copyright (C) 2008 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.systemui.statusbar;

 import android.app.Notification;
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.content.res.Resources;
 import android.graphics.Canvas;
 import android.graphics.Paint;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
 import android.os.UserHandle;
 import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.ViewDebug;
 import android.view.accessibility.AccessibilityEvent;
 import android.widget.ImageView;

 import com.android.internal.statusbar.StatusBarIcon;
 import com.android.systemui.R;

 import java.text.NumberFormat;

 public class StatusBarIconView extends AnimatedImageView {
     private static final String TAG = "StatusBarIconView";

     private StatusBarIcon mIcon;
     @ViewDebug.ExportedProperty private String mSlot;
     private Drawable mNumberBackground;
     private Paint mNumberPain;
     private int mNumberX;
     private int mNumberY;
     private String mNumberText;
     private Notification mNotification;

     public StatusBarIconView(Context context, String slot, Notification notification) {
         super(context);
         final Resources res = context.getResources();
         mSlot = slot;
         mNumberPain = new Paint();
         mNumberPain.setTextAlign(Paint.Align.CENTER);
         mNumberPain.setColor(res.getColor(R.drawable.notification_number_text_color));
         mNumberPain.setAntiAlias(true);
         mNotification = notification;
         setContentDescription(notification);

         // We do not resize and scale system icons (on the right), only notification icons (on the
         // left).
         if (notification != null) {
             final int outerBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_size);
             final int imageBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_drawing_size);
             final float scale = (float)imageBounds / (float)outerBounds;
             setScaleX(scale);
             setScaleY(scale);
         }

         setScaleType(ImageView.ScaleType.CENTER);
     }

     public StatusBarIconView(Context context, AttributeSet attrs) {
         super(context, attrs);
         final Resources res = context.getResources();
         final int outerBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_size);
         final int imageBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_drawing_size);
         final float scale = (float)imageBounds / (float)outerBounds;
         setScaleX(scale);
         setScaleY(scale);
     }

     private static boolean streq(String a, String b) {
         if (a == b) {
             return true;
         }
         if (a == null && b != null) {
             return false;
         }
         if (a != null && b == null) {
             return false;
         }
         return a.equals(b);
     }

     /**
      * Returns whether the set succeeded.
      */
     public boolean set(StatusBarIcon icon) {
         final boolean iconEquals = mIcon != null
                 && streq(mIcon.iconPackage, icon.iconPackage)
                 && mIcon.iconId == icon.iconId;
         final boolean levelEquals = iconEquals
                 && mIcon.iconLevel == icon.iconLevel;
         final boolean visibilityEquals = mIcon != null
                 && mIcon.visible == icon.visible;
         final boolean numberEquals = mIcon != null
                 && mIcon.number == icon.number;
         mIcon = icon.clone();
         setContentDescription(icon.contentDescription);
         if (!iconEquals) {
             if (!updateDrawable(false /* no clear */)) return false;
         }
         if (!levelEquals) {
             setImageLevel(icon.iconLevel);
         }

         if (!numberEquals) {
             if (icon.number > 0 && getContext().getResources().getBoolean(
                         R.bool.config_statusBarShowNumber)) {
                 if (mNumberBackground == null) {
                     mNumberBackground = getContext().getResources().getDrawable(
                             R.drawable.ic_notification_overlay);
                 }
                 placeNumber();
             } else {
                 mNumberBackground = null;
                 mNumberText = null;
             }
             invalidate();
         }
         if (!visibilityEquals) {
             setVisibility(icon.visible ? VISIBLE : GONE);
         }
         return true;
     }

     public void updateDrawable() {
         updateDrawable(true /* with clear */);
     }

     private boolean updateDrawable(boolean withClear) {
         Drawable drawable = getIcon(mIcon);
         if (drawable == null) {
             Log.w(TAG, "No icon for slot " + mSlot);
             return false;
         }
         if (withClear) {
             setImageDrawable(null);
         }
         setImageDrawable(drawable);
         return true;
     }

     private Drawable getIcon(StatusBarIcon icon) {
         return getIcon(getContext(), icon);
     }

     /**
      * Returns the right icon to use for this item, respecting the iconId and
      * iconPackage (if set)
      *
      * @param context Context to use to get resources if iconPackage is not set
      * @return Drawable for this item, or null if the package or item could not
      *         be found
      */
     public static Drawable getIcon(Context context, StatusBarIcon icon) {
         Resources r = null;

         if (icon.iconPackage != null) {
             try {
                 int userId = icon.user.getIdentifier();
                 if (userId == UserHandle.USER_ALL) {
                     userId = UserHandle.USER_OWNER;
                 }
                 r = context.getPackageManager()
                         .getResourcesForApplicationAsUser(icon.iconPackage, userId);
             } catch (PackageManager.NameNotFoundException ex) {
                 Log.e(TAG, "Icon package not found: " + icon.iconPackage);
                 return null;
             }
         } else {
             r = context.getResources();
         }

         if (icon.iconId == 0) {
             return null;
         }

         try {
             return r.getDrawable(icon.iconId);
         } catch (RuntimeException e) {
             Log.w(TAG, "Icon not found in "
                   + (icon.iconPackage != null ? icon.iconId : "<system>")
                   + ": " + Integer.toHexString(icon.iconId));
         }

         return null;
     }

     public StatusBarIcon getStatusBarIcon() {
         return mIcon;
     }

     @Override
     public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
         super.onInitializeAccessibilityEvent(event);
         if (mNotification != null) {
             event.setParcelableData(mNotification);
         }
     }

     @Override
     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
         super.onSizeChanged(w, h, oldw, oldh);
         if (mNumberBackground != null) {
             placeNumber();
         }
     }

     @Override
     protected void onDraw(Canvas canvas) {
         super.onDraw(canvas);

         if (mNumberBackground != null) {
             mNumberBackground.draw(canvas);
             canvas.drawText(mNumberText, mNumberX, mNumberY, mNumberPain);
         }
     }

     @Override
     protected void debug(int depth) {
         super.debug(depth);
         Log.d("View", debugIndent(depth) + "slot=" + mSlot);
         Log.d("View", debugIndent(depth) + "icon=" + mIcon);
     }

     void placeNumber() {
         final String str;
         final int tooBig = getContext().getResources().getInteger(
                 android.R.integer.status_bar_notification_info_maxnum);
         if (mIcon.number > tooBig) {
             str = getContext().getResources().getString(
                         android.R.string.status_bar_notification_info_overflow);
         } else {
             NumberFormat f = NumberFormat.getIntegerInstance();
             str = f.format(mIcon.number);
         }
         mNumberText = str;

         final int w = getWidth();
         final int h = getHeight();
         final Rect r = new Rect();
         mNumberPain.getTextBounds(str, 0, str.length(), r);
         final int tw = r.right - r.left;
         final int th = r.bottom - r.top;
         mNumberBackground.getPadding(r);
         int dw = r.left + tw + r.right;
         if (dw < mNumberBackground.getMinimumWidth()) {
             dw = mNumberBackground.getMinimumWidth();
         }
         mNumberX = w-r.right-((dw-r.right-r.left)/2);
         int dh = r.top + th + r.bottom;
         if (dh < mNumberBackground.getMinimumWidth()) {
             dh = mNumberBackground.getMinimumWidth();
         }
         mNumberY = h-r.bottom-((dh-r.top-th-r.bottom)/2);
         mNumberBackground.setBounds(w-dw, h-dh, w, h);
     }

     private void setContentDescription(Notification notification) {
         if (notification != null) {
             CharSequence tickerText = notification.tickerText;
             if (!TextUtils.isEmpty(tickerText)) {
                 setContentDescription(tickerText);
             }
         }
     }

     public String toString() {
         return "StatusBarIconView(slot=" + mSlot + " icon=" + mIcon
             + " notification=" + mNotification + ")";
     }
 }
	/*
	* Copyright (C) 2008 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.systemui.statusbar;

	import android.app.Notification;
	import android.content.Context;
	import android.content.pm.PackageManager;
	import android.content.res.Resources;
	import android.graphics.Canvas;
	import android.graphics.Paint;
	import android.graphics.Rect;
	import android.graphics.drawable.Drawable;
	import android.os.UserHandle;
	import android.text.TextUtils;
	import android.util.AttributeSet;
	import android.util.Log;
	import android.view.ViewDebug;
	import android.view.accessibility.AccessibilityEvent;
	import android.widget.ImageView;

	import com.android.internal.statusbar.StatusBarIcon;
	import com.android.systemui.R;

	import java.text.NumberFormat;

	public class StatusBarIconView extends AnimatedImageView {
	private static final String TAG = "StatusBarIconView";

	private StatusBarIcon mIcon;
	@ViewDebug.ExportedProperty private String mSlot;
	private Drawable mNumberBackground;
	private Paint mNumberPain;
	private int mNumberX;
	private int mNumberY;
	private String mNumberText;
	private Notification mNotification;

	public StatusBarIconView(Context context, String slot, Notification notification) {
	super(context);
	final Resources res = context.getResources();
	mSlot = slot;
	mNumberPain = new Paint();
	mNumberPain.setTextAlign(Paint.Align.CENTER);
	mNumberPain.setColor(res.getColor(R.drawable.notification_number_text_color));
	mNumberPain.setAntiAlias(true);
	mNotification = notification;
	setContentDescription(notification);

	// We do not resize and scale system icons (on the right), only notification icons (on the
	// left).
	if (notification != null) {
	final int outerBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_size);
	final int imageBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_drawing_size);
	final float scale = (float)imageBounds / (float)outerBounds;
	setScaleX(scale);
	setScaleY(scale);
	}

	setScaleType(ImageView.ScaleType.CENTER);
	}

	public StatusBarIconView(Context context, AttributeSet attrs) {
	super(context, attrs);
	final Resources res = context.getResources();
	final int outerBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_size);
	final int imageBounds = res.getDimensionPixelSize(R.dimen.status_bar_icon_drawing_size);
	final float scale = (float)imageBounds / (float)outerBounds;
	setScaleX(scale);
	setScaleY(scale);
	}

	private static boolean streq(String a, String b) {
	if (a == b) {
	return true;
	}
	if (a == null && b != null) {
	return false;
	}
	if (a != null && b == null) {
	return false;
	}
	return a.equals(b);
	}

	/**
	* Returns whether the set succeeded.
	*/
	public boolean set(StatusBarIcon icon) {
	final boolean iconEquals = mIcon != null
	&& streq(mIcon.iconPackage, icon.iconPackage)
	&& mIcon.iconId == icon.iconId;
	final boolean levelEquals = iconEquals
	&& mIcon.iconLevel == icon.iconLevel;
	final boolean visibilityEquals = mIcon != null
	&& mIcon.visible == icon.visible;
	final boolean numberEquals = mIcon != null
	&& mIcon.number == icon.number;
	mIcon = icon.clone();
	setContentDescription(icon.contentDescription);
	if (!iconEquals) {
	if (!updateDrawable(false /* no clear */)) return false;
	}
	if (!levelEquals) {
	setImageLevel(icon.iconLevel);
	}

	if (!numberEquals) {
	if (icon.number > 0 && getContext().getResources().getBoolean(
	R.bool.config_statusBarShowNumber)) {
	if (mNumberBackground == null) {
	mNumberBackground = getContext().getResources().getDrawable(
	R.drawable.ic_notification_overlay);
	}
	placeNumber();
	} else {
	mNumberBackground = null;
	mNumberText = null;
	}
	invalidate();
	}
	if (!visibilityEquals) {
	setVisibility(icon.visible ? VISIBLE : GONE);
	}
	return true;
	}

	public void updateDrawable() {
	updateDrawable(true /* with clear */);
	}

	private boolean updateDrawable(boolean withClear) {
	Drawable drawable = getIcon(mIcon);
	if (drawable == null) {
	Log.w(TAG, "No icon for slot " + mSlot);
	return false;
	}
	if (withClear) {
	setImageDrawable(null);
	}
	setImageDrawable(drawable);
	return true;
	}

	private Drawable getIcon(StatusBarIcon icon) {
	return getIcon(getContext(), icon);
	}

	/**
	* Returns the right icon to use for this item, respecting the iconId and
	* iconPackage (if set)
	*
	* @param context Context to use to get resources if iconPackage is not set
	* @return Drawable for this item, or null if the package or item could not
	* be found
	*/
	public static Drawable getIcon(Context context, StatusBarIcon icon) {
	Resources r = null;

	if (icon.iconPackage != null) {
	try {
	int userId = icon.user.getIdentifier();
	if (userId == UserHandle.USER_ALL) {
	userId = UserHandle.USER_OWNER;
	}
	r = context.getPackageManager()
	.getResourcesForApplicationAsUser(icon.iconPackage, userId);
	} catch (PackageManager.NameNotFoundException ex) {
	Log.e(TAG, "Icon package not found: " + icon.iconPackage);
	return null;
	}
	} else {
	r = context.getResources();
	}

	if (icon.iconId == 0) {
	return null;
	}

	try {
	return r.getDrawable(icon.iconId);
	} catch (RuntimeException e) {
	Log.w(TAG, "Icon not found in "
	+ (icon.iconPackage != null ? icon.iconId : "<system>")
	+ ": " + Integer.toHexString(icon.iconId));
	}

	return null;
	}

	public StatusBarIcon getStatusBarIcon() {
	return mIcon;
	}

	@Override
	public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
	super.onInitializeAccessibilityEvent(event);
	if (mNotification != null) {
	event.setParcelableData(mNotification);
	}
	}

	@Override
	protected void onSizeChanged(int w, int h, int oldw, int oldh) {
	super.onSizeChanged(w, h, oldw, oldh);
	if (mNumberBackground != null) {
	placeNumber();
	}
	}

	@Override
	protected void onDraw(Canvas canvas) {
	super.onDraw(canvas);

	if (mNumberBackground != null) {
	mNumberBackground.draw(canvas);
	canvas.drawText(mNumberText, mNumberX, mNumberY, mNumberPain);
	}
	}

	@Override
	protected void debug(int depth) {
	super.debug(depth);
	Log.d("View", debugIndent(depth) + "slot=" + mSlot);
	Log.d("View", debugIndent(depth) + "icon=" + mIcon);
	}

	void placeNumber() {
	final String str;
	final int tooBig = getContext().getResources().getInteger(
	android.R.integer.status_bar_notification_info_maxnum);
	if (mIcon.number > tooBig) {
	str = getContext().getResources().getString(
	android.R.string.status_bar_notification_info_overflow);
	} else {
	NumberFormat f = NumberFormat.getIntegerInstance();
	str = f.format(mIcon.number);
	}
	mNumberText = str;

	final int w = getWidth();
	final int h = getHeight();
	final Rect r = new Rect();
	mNumberPain.getTextBounds(str, 0, str.length(), r);
	final int tw = r.right - r.left;
	final int th = r.bottom - r.top;
	mNumberBackground.getPadding(r);
	int dw = r.left + tw + r.right;
	if (dw < mNumberBackground.getMinimumWidth()) {
	dw = mNumberBackground.getMinimumWidth();
	}
	mNumberX = w-r.right-((dw-r.right-r.left)/2);
	int dh = r.top + th + r.bottom;
	if (dh < mNumberBackground.getMinimumWidth()) {
	dh = mNumberBackground.getMinimumWidth();
	}
	mNumberY = h-r.bottom-((dh-r.top-th-r.bottom)/2);
	mNumberBackground.setBounds(w-dw, h-dh, w, h);
	}

	private void setContentDescription(Notification notification) {
	if (notification != null) {
	CharSequence tickerText = notification.tickerText;
	if (!TextUtils.isEmpty(tickerText)) {
	setContentDescription(tickerText);
	}
	}
	}

	public String toString() {
	return "StatusBarIconView(slot=" + mSlot + " icon=" + mIcon
	+ " notification=" + mNotification + ")";
	}
	}