package com.pulque;
/*
*Author: tanrui
*Date: 20/1/2010
*/
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Rect;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.util.Log;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.View;
import android.widget.AbsSeekBar;
public class SeekBar extends AbsSeekBar {
private Drawable mThumb;
private int height;
private int width;
public interface OnSeekBarChangeListener {
void onProgressChanged(SeekBar VerticalSeekBar, int progress,
boolean fromUser);
void onStartTrackingTouch(SeekBar VerticalSeekBar);
void onStopTrackingTouch(SeekBar VerticalSeekBar);
}
private OnSeekBarChangeListener mOnSeekBarChangeListener;
public SeekBar(Context context) {
this(context, null);
}
public SeekBar(Context context, AttributeSet attrs) {
this(context, attrs, android.R.attr.seekBarStyle);
}
public SeekBar(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}
public void setOnSeekBarChangeListener(OnSeekBarChangeListener l) {
mOnSeekBarChangeListener = l;
}
void onStartTrackingTouch() {
if (mOnSeekBarChangeListener != null) {
mOnSeekBarChangeListener.onStartTrackingTouch(this);
}
}
void onStopTrackingTouch() {
if (mOnSeekBarChangeListener != null) {
mOnSeekBarChangeListener.onStopTrackingTouch(this);
}
}
void onProgressRefresh(float scale, boolean fromUser) {
Log.e("6", "onProgressRefresh==>scale"+scale);
Drawable thumb = mThumb;
if (thumb != null) {
setThumbPos(getHeight(), thumb, scale, Integer.MIN_VALUE);
invalidate();
}
if (mOnSeekBarChangeListener != null) {
mOnSeekBarChangeListener.onProgressChanged(this, getProgress(),
fromUser);
}
}
private void setThumbPos(int w, Drawable thumb, float scale, int gap) {
Log.e("6", "setThumbPos==>w"+w);
int available = w + getPaddingLeft() - getPaddingRight();
int thumbWidth = thumb.getIntrinsicWidth();
int thumbHeight = thumb.getIntrinsicHeight();
available -= thumbWidth;
// The extra space for the thumb to move on the track
available += getThumbOffset() * 2;
int thumbPos = (int) (scale * available);
int topBound, bottomBound;
if (gap == Integer.MIN_VALUE) {
Rect oldBounds = thumb.getBounds();
topBound = oldBounds.top;
bottomBound = oldBounds.bottom;
} else {
topBound = gap;
bottomBound = gap + thumbHeight;
}
thumb.setBounds(thumbPos, topBound, thumbPos + thumbWidth, bottomBound);
}
protected void onDraw(Canvas c) {
Log.e("6", "onDraw==>height"+height);
c.rotate(90);
c.translate(0, -width);
super.onDraw(c);
}
protected synchronized void onMeasure(int widthMeasureSpec,
int heightMeasureSpec) {
// width = 200;
// height = 120;
height = View.MeasureSpec.getSize(heightMeasureSpec);
width = View.MeasureSpec.getSize(widthMeasureSpec);
Log.e("6", "onMeasure==>height,,width"+height+" "+width);
this.setMeasuredDimension(width, height);
}
@Override
public void setThumb(Drawable thumb) {
mThumb = thumb;
super.setThumb(thumb);
}
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
Log.e("6", "onSizeChanged==>w,,h,,oldw,,oldh"+w+" "+h+" "+oldw+" "+oldh);
super.onSizeChanged(h, w, oldw, oldh);
}
public boolean onTouchEvent(MotionEvent event) {
if (!isEnabled()) {
return false;
}
switch (event.getAction()) {
case MotionEvent.ACTION_DOWN:
setPressed(true);
onStartTrackingTouch();
trackTouchEvent(event);
break;
case MotionEvent.ACTION_MOVE:
trackTouchEvent(event);
attemptClaimDrag();
break;
case MotionEvent.ACTION_UP:
trackTouchEvent(event);
onStopTrackingTouch();
setPressed(false);
break;
case MotionEvent.ACTION_CANCEL:
onStopTrackingTouch();
setPressed(false);
break;
}
return true;
}
private void trackTouchEvent(MotionEvent event) {
final int Height = getHeight();
Log.e("6", "trackTouchEvent==>Height"+Height);
final int available = Height - getPaddingBottom() - getPaddingTop();
int Y = (int) event.getY();
Log.e("6", "trackTouchEvent==>Y"+Y);
float scale;
float progress = 0;
if (Y > Height - getPaddingBottom()) {
scale = 1.0f;
} else if (Y < getPaddingTop()) {
scale = 0.0f;
} else {
scale = (float) (Y)
/ (float) available;
}
final int max = getMax();
progress = scale * max;
setProgress((int) progress);
}
private void attemptClaimDrag() {
if (getParent() != null) {
getParent().requestDisallowInterceptTouchEvent(true);
}
}
public boolean dispatchKeyEvent(KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN) {
KeyEvent newEvent = null;
switch (event.getKeyCode()) {
case KeyEvent.KEYCODE_DPAD_UP:
newEvent = new KeyEvent(KeyEvent.ACTION_DOWN,
KeyEvent.KEYCODE_DPAD_RIGHT);
break;
case KeyEvent.KEYCODE_DPAD_DOWN:
newEvent = new KeyEvent(KeyEvent.ACTION_DOWN,
KeyEvent.KEYCODE_DPAD_LEFT);
break;
case KeyEvent.KEYCODE_DPAD_LEFT:
newEvent = new KeyEvent(KeyEvent.ACTION_DOWN,
KeyEvent.KEYCODE_DPAD_DOWN);
break;
case KeyEvent.KEYCODE_DPAD_RIGHT:
newEvent = new KeyEvent(KeyEvent.ACTION_DOWN,
KeyEvent.KEYCODE_DPAD_UP);
break;
default:
newEvent = new KeyEvent(KeyEvent.ACTION_DOWN, event
.getKeyCode());
break;
}
return newEvent.dispatch(this);
}
return false;
}
}
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