diff options
Diffstat (limited to 'src/org/cyanogenmod/audiofx/preset')
3 files changed, 312 insertions, 0 deletions
diff --git a/src/org/cyanogenmod/audiofx/preset/InfinitePagerAdapter.java b/src/org/cyanogenmod/audiofx/preset/InfinitePagerAdapter.java new file mode 100644 index 0000000..e090ea8 --- /dev/null +++ b/src/org/cyanogenmod/audiofx/preset/InfinitePagerAdapter.java @@ -0,0 +1,110 @@ +/* + * Copyright (C) 2016 The CyanogenMod 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 org.cyanogenmod.audiofx.preset; + +import android.os.Parcelable; +import android.support.v4.view.PagerAdapter; +import android.util.Log; +import android.view.View; +import android.view.ViewGroup; + +/** + * A PagerAdapter that wraps around another PagerAdapter to handle paging wrap-around. + */ +public class InfinitePagerAdapter extends PagerAdapter { + + private static final String TAG = "InfinitePagerAdapter"; + private static final boolean DEBUG = false; + + private PagerAdapter adapter; + + public InfinitePagerAdapter(PagerAdapter adapter) { + this.adapter = adapter; + } + + @Override + public int getCount() { + // warning: scrolling to very high values (1,000,000+) results in + // strange drawing behaviour + return Integer.MAX_VALUE; + } + + /** + * @return the {@link #getCount()} result of the wrapped adapter + */ + public int getRealCount() { + return adapter.getCount(); + } + + @Override + public Object instantiateItem(ViewGroup container, int position) { + int virtualPosition = position % getRealCount(); + debug("instantiateItem: real position: " + position); + debug("instantiateItem: virtual position: " + virtualPosition); + + // only expose virtual position to the inner adapter + return adapter.instantiateItem(container, virtualPosition); + } + + @Override + public void destroyItem(ViewGroup container, int position, Object object) { + int virtualPosition = position % getRealCount(); + debug("destroyItem: real position: " + position); + debug("destroyItem: virtual position: " + virtualPosition); + + // only expose virtual position to the inner adapter + adapter.destroyItem(container, virtualPosition, object); + } + + /* + * Delegate rest of methods directly to the inner adapter. + */ + + @Override + public void finishUpdate(ViewGroup container) { + adapter.finishUpdate(container); + } + + @Override + public boolean isViewFromObject(View view, Object object) { + return adapter.isViewFromObject(view, object); + } + + @Override + public void restoreState(Parcelable bundle, ClassLoader classLoader) { + adapter.restoreState(bundle, classLoader); + } + + @Override + public Parcelable saveState() { + return adapter.saveState(); + } + + @Override + public void startUpdate(ViewGroup container) { + adapter.startUpdate(container); + } + + /* + * End delegation + */ + + private void debug(String message) { + if (DEBUG) { + Log.d(TAG, message); + } + } +}
\ No newline at end of file diff --git a/src/org/cyanogenmod/audiofx/preset/InfiniteViewPager.java b/src/org/cyanogenmod/audiofx/preset/InfiniteViewPager.java new file mode 100644 index 0000000..26e67f3 --- /dev/null +++ b/src/org/cyanogenmod/audiofx/preset/InfiniteViewPager.java @@ -0,0 +1,120 @@ +/* + * Copyright (C) 2016 The CyanogenMod 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 org.cyanogenmod.audiofx.preset; + +import android.content.Context; +import android.support.v4.view.PagerAdapter; +import android.support.v4.view.ViewPager; +import android.util.AttributeSet; +import android.view.MotionEvent; + +import org.cyanogenmod.audiofx.R; +import org.cyanogenmod.audiofx.activity.EqualizerManager; +import org.cyanogenmod.audiofx.activity.MasterConfigControl; + +/** + * A {@link ViewPager} that allows pseudo-infinite paging with a wrap-around effect. Should be used with an {@link + * InfinitePagerAdapter}. + */ +public class InfiniteViewPager extends ViewPager { + + private final EqualizerManager mEqManager; + + @Override + public boolean hasOverlappingRendering() { + return false; + } + + public InfiniteViewPager(Context context) { + super(context); + mEqManager = MasterConfigControl.getInstance(context).getEqualizerManager(); + } + + public InfiniteViewPager(Context context, AttributeSet attrs) { + super(context, attrs); + mEqManager = MasterConfigControl.getInstance(context).getEqualizerManager(); + } + + @Override + public boolean onInterceptTouchEvent(MotionEvent ev) { + if (mEqManager.isAnimatingToCustom()) { + return false; + } + return super.onInterceptTouchEvent(ev); + } + + @Override + public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { + int textSize = getResources().getDimensionPixelSize(R.dimen.preset_text_size) + + getResources().getDimensionPixelSize(R.dimen.preset_text_padding); + super.onMeasure(widthMeasureSpec, + MeasureSpec.makeMeasureSpec(textSize, MeasureSpec.EXACTLY)); + } + + @Override + public boolean onTouchEvent(MotionEvent ev) { + if (mEqManager.isAnimatingToCustom()) { + return false; + } + boolean result; + try { + result = super.onTouchEvent(ev); + } catch (IllegalArgumentException e) { + /* There's a bug with the support library where it doesn't check + * the proper pointer index, so when multi touching the container, + * this can sometimes be thrown. Supposedly there are no downsides to just + * catching the exception and moving along, so let's do that.... + */ + result = false; + } + return result; + } + + @Override + public void setAdapter(PagerAdapter adapter) { + super.setAdapter(adapter); + // offset first element so that we can scroll to the left + setCurrentItem(0); + } + + @Override + public void setCurrentItem(int item) { + // offset the current item to ensure there is space to scroll + item = getOffsetAmount() + (item % getAdapter().getCount()); + super.setCurrentItem(item); + } + + public void setCurrentItemAbsolute(int item) { + super.setCurrentItem(item); + } + + private int getOffsetAmount() { + if (getAdapter() instanceof InfinitePagerAdapter) { + InfinitePagerAdapter infAdapter = (InfinitePagerAdapter) getAdapter(); + // allow for 100 back cycles from the beginning + // should be enough to create an illusion of infinity + // warning: scrolling to very high values (1,000,000+) results in + // strange drawing behaviour + return infAdapter.getRealCount() * 100; + } else { + return 0; + } + } + + public void setCurrentItemAbsolute(int newPage, boolean b) { + super.setCurrentItem(newPage, b); + } +} diff --git a/src/org/cyanogenmod/audiofx/preset/PresetPagerAdapter.java b/src/org/cyanogenmod/audiofx/preset/PresetPagerAdapter.java new file mode 100644 index 0000000..d8cd1f0 --- /dev/null +++ b/src/org/cyanogenmod/audiofx/preset/PresetPagerAdapter.java @@ -0,0 +1,82 @@ +/* + * Copyright (C) 2014 The CyanogenMod 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 org.cyanogenmod.audiofx.preset; + +import android.content.Context; +import android.support.v4.view.PagerAdapter; +import android.view.LayoutInflater; +import android.view.View; +import android.view.ViewGroup; +import android.widget.TextView; + +import org.cyanogenmod.audiofx.Preset; +import org.cyanogenmod.audiofx.R; +import org.cyanogenmod.audiofx.activity.EqualizerManager; +import org.cyanogenmod.audiofx.activity.MasterConfigControl; + +public class PresetPagerAdapter extends PagerAdapter { + + private final Context mContext; + private final EqualizerManager mEqManager; + + public PresetPagerAdapter(Context context) { + super(); + mContext = context; + mEqManager = MasterConfigControl.getInstance(mContext).getEqualizerManager(); + } + + @Override + public int getItemPosition(Object object) { + View v = (View) object; + int index = mEqManager.indexOf(((Preset) v.getTag())); + if (index == -1) { + return POSITION_NONE; + } else { + return index; + } + } + + @Override + public Object instantiateItem(ViewGroup container, int position) { + View view = LayoutInflater.from(mContext) + .inflate(R.layout.preset_adapter_row, container, false); + TextView tv = (TextView) view; + tv.setText(mEqManager.getLocalizedPresetName(position)); + tv.setTag(mEqManager.getPreset(position)); + container.addView(tv); + return view; + } + + @Override + public void destroyItem(ViewGroup container, int position, Object object) { + if (object instanceof View) { + container.removeView((View) object); + } + } + + @Override + public int getCount() { + return mEqManager.getPresetCount(); + } + + @Override + public boolean isViewFromObject(View view, Object o) { + return view == o; + } + + + +} |