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