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/*
* Copyright (C) 2010 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.launcher3;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Region;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.TypedValue;
import android.widget.TextView;
/**
* An icon on a PagedView, specifically for items in the launcher's paged view (with compound
* drawables on the top).
*/
public class PagedViewIcon extends TextView {
/** A simple callback interface to allow a PagedViewIcon to notify when it has been pressed */
public static interface PressedCallback {
void iconPressed(PagedViewIcon icon);
}
@SuppressWarnings("unused")
private static final String TAG = "PagedViewIcon";
static final float PRESS_ALPHA = 0.4f;
private PagedViewIcon.PressedCallback mPressedCallback;
private boolean mLockDrawableState = false;
private Bitmap mIcon;
public PagedViewIcon(Context context) {
this(context, null);
}
public PagedViewIcon(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public PagedViewIcon(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public void onFinishInflate() {
super.onFinishInflate();
// Ensure we are using the right text size
LauncherAppState app = LauncherAppState.getInstance();
DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();
setTextSize(TypedValue.COMPLEX_UNIT_PX, grid.allAppsIconTextSizePx);
}
public void applyFromApplicationInfo(AppInfo info, boolean scaleUp,
PagedViewIcon.PressedCallback cb) {
LauncherAppState app = LauncherAppState.getInstance();
DeviceProfile grid = app.getDynamicGrid().getDeviceProfile();
mIcon = info.iconBitmap;
mPressedCallback = cb;
Drawable icon = Utilities.createIconDrawable(mIcon);
icon.setBounds(0, 0, grid.allAppsIconSizePx, grid.allAppsIconSizePx);
setCompoundDrawables(null, icon, null, null);
setCompoundDrawablePadding(grid.iconDrawablePaddingPx);
setText(info.title);
setTag(info);
}
public void lockDrawableState() {
mLockDrawableState = true;
}
public void resetDrawableState() {
mLockDrawableState = false;
post(new Runnable() {
@Override
public void run() {
refreshDrawableState();
}
});
}
protected void drawableStateChanged() {
super.drawableStateChanged();
// We keep in the pressed state until resetDrawableState() is called to reset the press
// feedback
if (isPressed()) {
setAlpha(PRESS_ALPHA);
if (mPressedCallback != null) {
mPressedCallback.iconPressed(this);
}
} else if (!mLockDrawableState) {
setAlpha(1f);
}
}
@Override
public void draw(Canvas canvas) {
// If text is transparent, don't draw any shadow
if (getCurrentTextColor() == getResources().getColor(android.R.color.transparent)) {
getPaint().clearShadowLayer();
super.draw(canvas);
return;
}
// We enhance the shadow by drawing the shadow twice
getPaint().setShadowLayer(BubbleTextView.SHADOW_LARGE_RADIUS, 0.0f,
BubbleTextView.SHADOW_Y_OFFSET, BubbleTextView.SHADOW_LARGE_COLOUR);
super.draw(canvas);
canvas.save(Canvas.CLIP_SAVE_FLAG);
canvas.clipRect(getScrollX(), getScrollY() + getExtendedPaddingTop(),
getScrollX() + getWidth(),
getScrollY() + getHeight(), Region.Op.INTERSECT);
getPaint().setShadowLayer(BubbleTextView.SHADOW_SMALL_RADIUS, 0.0f, 0.0f,
BubbleTextView.SHADOW_SMALL_COLOUR);
super.draw(canvas);
canvas.restore();
}
}
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