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/*
* Copyright (C) 2012 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 org.kelar.inputmethod.keyboard.internal;
import android.animation.Animator;
import android.animation.AnimatorInflater;
import android.animation.AnimatorSet;
import android.animation.ObjectAnimator;
import android.content.res.TypedArray;
import android.view.View;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.DecelerateInterpolator;
import org.kelar.inputmethod.latin.R;
public final class KeyPreviewDrawParams {
// XML attributes of {@link MainKeyboardView}.
public final int mPreviewOffset;
public final int mPreviewHeight;
public final int mPreviewBackgroundResId;
private final int mShowUpAnimatorResId;
private final int mDismissAnimatorResId;
private boolean mHasCustomAnimationParams;
private int mShowUpDuration;
private int mDismissDuration;
private float mShowUpStartXScale;
private float mShowUpStartYScale;
private float mDismissEndXScale;
private float mDismissEndYScale;
private int mLingerTimeout;
private boolean mShowPopup = true;
// The graphical geometry of the key preview.
// <-width->
// +-------+ ^
// | | |
// |preview| height (visible)
// | | |
// + + ^ v
// \ / |offset
// +-\ /-+ v
// | +-+ |
// |parent |
// | key|
// +-------+
// The background of a {@link TextView} being used for a key preview may have invisible
// paddings. To align the more keys keyboard panel's visible part with the visible part of
// the background, we need to record the width and height of key preview that don't include
// invisible paddings.
private int mVisibleWidth;
private int mVisibleHeight;
// The key preview may have an arbitrary offset and its background that may have a bottom
// padding. To align the more keys keyboard and the key preview we also need to record the
// offset between the top edge of parent key and the bottom of the visible part of key
// preview background.
private int mVisibleOffset;
public KeyPreviewDrawParams(final TypedArray mainKeyboardViewAttr) {
mPreviewOffset = mainKeyboardViewAttr.getDimensionPixelOffset(
R.styleable.MainKeyboardView_keyPreviewOffset, 0);
mPreviewHeight = mainKeyboardViewAttr.getDimensionPixelSize(
R.styleable.MainKeyboardView_keyPreviewHeight, 0);
mPreviewBackgroundResId = mainKeyboardViewAttr.getResourceId(
R.styleable.MainKeyboardView_keyPreviewBackground, 0);
mLingerTimeout = mainKeyboardViewAttr.getInt(
R.styleable.MainKeyboardView_keyPreviewLingerTimeout, 0);
mShowUpAnimatorResId = mainKeyboardViewAttr.getResourceId(
R.styleable.MainKeyboardView_keyPreviewShowUpAnimator, 0);
mDismissAnimatorResId = mainKeyboardViewAttr.getResourceId(
R.styleable.MainKeyboardView_keyPreviewDismissAnimator, 0);
}
public void setVisibleOffset(final int previewVisibleOffset) {
mVisibleOffset = previewVisibleOffset;
}
public int getVisibleOffset() {
return mVisibleOffset;
}
public void setGeometry(final View previewTextView) {
final int previewWidth = previewTextView.getMeasuredWidth();
final int previewHeight = mPreviewHeight;
// The width and height of visible part of the key preview background. The content marker
// of the background 9-patch have to cover the visible part of the background.
mVisibleWidth = previewWidth - previewTextView.getPaddingLeft()
- previewTextView.getPaddingRight();
mVisibleHeight = previewHeight - previewTextView.getPaddingTop()
- previewTextView.getPaddingBottom();
// The distance between the top edge of the parent key and the bottom of the visible part
// of the key preview background.
setVisibleOffset(mPreviewOffset - previewTextView.getPaddingBottom());
}
public int getVisibleWidth() {
return mVisibleWidth;
}
public int getVisibleHeight() {
return mVisibleHeight;
}
public void setPopupEnabled(final boolean enabled, final int lingerTimeout) {
mShowPopup = enabled;
mLingerTimeout = lingerTimeout;
}
public boolean isPopupEnabled() {
return mShowPopup;
}
public int getLingerTimeout() {
return mLingerTimeout;
}
public void setAnimationParams(final boolean hasCustomAnimationParams,
final float showUpStartXScale, final float showUpStartYScale, final int showUpDuration,
final float dismissEndXScale, final float dismissEndYScale, final int dismissDuration) {
mHasCustomAnimationParams = hasCustomAnimationParams;
mShowUpStartXScale = showUpStartXScale;
mShowUpStartYScale = showUpStartYScale;
mShowUpDuration = showUpDuration;
mDismissEndXScale = dismissEndXScale;
mDismissEndYScale = dismissEndYScale;
mDismissDuration = dismissDuration;
}
private static final float KEY_PREVIEW_SHOW_UP_END_SCALE = 1.0f;
private static final AccelerateInterpolator ACCELERATE_INTERPOLATOR =
new AccelerateInterpolator();
private static final DecelerateInterpolator DECELERATE_INTERPOLATOR =
new DecelerateInterpolator();
public Animator createShowUpAnimator(final View target) {
if (mHasCustomAnimationParams) {
final ObjectAnimator scaleXAnimator = ObjectAnimator.ofFloat(
target, View.SCALE_X, mShowUpStartXScale,
KEY_PREVIEW_SHOW_UP_END_SCALE);
final ObjectAnimator scaleYAnimator = ObjectAnimator.ofFloat(
target, View.SCALE_Y, mShowUpStartYScale,
KEY_PREVIEW_SHOW_UP_END_SCALE);
final AnimatorSet showUpAnimator = new AnimatorSet();
showUpAnimator.play(scaleXAnimator).with(scaleYAnimator);
showUpAnimator.setDuration(mShowUpDuration);
showUpAnimator.setInterpolator(DECELERATE_INTERPOLATOR);
return showUpAnimator;
}
final Animator animator = AnimatorInflater.loadAnimator(
target.getContext(), mShowUpAnimatorResId);
animator.setTarget(target);
animator.setInterpolator(DECELERATE_INTERPOLATOR);
return animator;
}
public Animator createDismissAnimator(final View target) {
if (mHasCustomAnimationParams) {
final ObjectAnimator scaleXAnimator = ObjectAnimator.ofFloat(
target, View.SCALE_X, mDismissEndXScale);
final ObjectAnimator scaleYAnimator = ObjectAnimator.ofFloat(
target, View.SCALE_Y, mDismissEndYScale);
final AnimatorSet dismissAnimator = new AnimatorSet();
dismissAnimator.play(scaleXAnimator).with(scaleYAnimator);
final int dismissDuration = Math.min(mDismissDuration, mLingerTimeout);
dismissAnimator.setDuration(dismissDuration);
dismissAnimator.setInterpolator(ACCELERATE_INTERPOLATOR);
return dismissAnimator;
}
final Animator animator = AnimatorInflater.loadAnimator(
target.getContext(), mDismissAnimatorResId);
animator.setTarget(target);
animator.setInterpolator(ACCELERATE_INTERPOLATOR);
return animator;
}
}
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