package com.gebauz.ZhuyinQuiz;
import java.util.Random;
import android.content.Context;
import android.graphics.Color;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.TextView;
public class GridAdapter
extends BaseAdapter
{
private Context mContext
;
private ZhuyinTable mZhuyinTable
;
private int mQuizMode = -
1;
private int mAnswerCharacters = -
1;
private Random mRandomizer =
new Random();
private int[] mJumbledIds
;
public GridAdapter
(Context c, ZhuyinTable table,
int quizMode,
int answerCharacters
)
{
mContext = c
;
mZhuyinTable = table
;
mQuizMode = quizMode
;
mAnswerCharacters = answerCharacters
;
mJumbledIds =
new int[mZhuyinTable.
getCount()];
jumbleButtons
(false);
}
public void jumbleButtons
(boolean doJumble
)
{
for (int i =
0; i
< mJumbledIds.
length; i++
)
{
mJumbledIds
[i
] = i
;
}
if (doJumble
)
{
// Fisher-Yates shuffle algorithm
for (int i =
(mJumbledIds.
length-
1); i
> 0; i--
)
{
int j = mRandomizer.
nextInt(i
);
int temp = mJumbledIds
[j
];
mJumbledIds
[j
] = mJumbledIds
[i
];
mJumbledIds
[i
] = temp
;
}
}
}
/*
public void putCorrectAnswerInFront(int correctAnswer)
{
// in 8-characters mode, if correct answer not among first 8 entries, randomly set one to it
if (mAnswerCharacters == Constants.INPUT_SMALL)
{
for (int i = 0; i < Constants.INPUT_SMALL_COUNT; i++)
{
if (mJumbledIds[i] == mJumbledIds[correctAnswer])
return;
}
// not found, manually put one into first 8
int where = mRandomizer.nextInt(8);
int temp = mJumbledIds[where];
mJumbledIds[where] = mJumbledIds[correctAnswer];
mJumbledIds[correctAnswer] = temp;
}
}*/
public int getActualItem
(int position
)
{
return mJumbledIds
[position
];
}
public String getActualExtraPronounciation
(int position
)
{
return mZhuyinTable.
getExtraPronounciation(getActualItem
(position
));
}
public String getActualZhuyin
(int position
)
{
return mZhuyinTable.
getZhuyin(getActualItem
(position
));
}
public String getActualPinyin
(int position
)
{
return mZhuyinTable.
getPinyin(getActualItem
(position
));
}
public int nextRandomItem
()
{
if (mAnswerCharacters == Constants.
INPUT_SMALL)
return mRandomizer.
nextInt(Constants.
INPUT_SMALL_COUNT);
return mRandomizer.
nextInt(mZhuyinTable.
getCount());
}
public int getCount
()
{
if (mAnswerCharacters == Constants.
INPUT_SMALL)
return Constants.
INPUT_SMALL_COUNT;
return mZhuyinTable.
getCount();
}
public Object getItem
(int position
)
{
return null;
}
public long getItemId
(int position
)
{
return 0;
}
// create a new ImageView for each item referenced by the Adapter
public View getView
(int position,
View convertView, ViewGroup parent
)
{
TextView button
;
if (convertView ==
null)
{
// if it's not recycled, initialize some attributes
button =
new TextView
(mContext
);
final float scale = mContext.
getResources().
getDisplayMetrics().
density;
int buttonSize =
(int) (Constants.
GRID_BUTTON_SIZE_DIP * scale + 0.5f
);
button.
setLayoutParams(new GridView.
LayoutParams(buttonSize, buttonSize
));
button.
setPadding(8,
8,
8,
8);
button.
setTextColor(Color.
WHITE);
button.
setBackgroundColor(Constants.
GRID_BACKGROUND_COLOR);
button.
setGravity(Gravity.
CENTER);
}
else
{
button =
(TextView
)convertView
;
}
int actualItem = getActualItem
(position
);
String textItem =
"-";
switch (mQuizMode
)
{
case Constants.
MODE_PINYIN:
// need zhuyin table in pinyin quiz mode
textItem = mZhuyinTable.
getZhuyin(actualItem
);
break;
case Constants.
MODE_ZHUYIN:
// need pinyin table in zhuyin quiz mode
textItem = mZhuyinTable.
getPinyin(actualItem
);
if (mZhuyinTable.
getExtraPronounciation(actualItem
).
length() > 0)
textItem = textItem +
"\n" + mZhuyinTable.
getExtraPronounciation(actualItem
);
break;
}
// make text size smaller for longer texts
if (textItem.
length() > 2)
button.
setTextSize(Constants.
GRID_TEXT_SIZE_LONG_ITEM);
else
button.
setTextSize(Constants.
GRID_TEXT_SIZE_SHORT_ITEM);
button.
setText(textItem
);
return button
;
}
}