1 /* 2 * Copyright (C) 2008-2012 OMRON SOFTWARE Co., Ltd. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package jp.co.omronsoft.openwnn; 17 18 import android.app.Dialog; 19 import android.content.Context; 20 import android.graphics.drawable.Drawable; 21 import android.text.TextUtils; 22 import android.text.TextPaint; 23 import android.view.Gravity; 24 import android.view.View; 25 import android.view.ViewGroup; 26 import android.view.Window; 27 import android.view.WindowManager; 28 import android.widget.LinearLayout; 29 import android.widget.TextView; 30 31 /** 32 * The default candidates view manager using {@link TextView}. 33 * 34 * @author Copyright (C) 2011 OMRON SOFTWARE CO., LTD. All Rights Reserved. 35 */ 36 public class CandidateTextView extends TextView { 37 38 /** Width of fontsize change */ 39 private static final int WIDTH_SIZE[] = {0, 50, 100}; 40 /** Fontsize corresponding to width */ 41 private static final float CUSTOM_FONTSIZE[] = {20.0f, 17.0f, 15.0f}; 42 /** Width of fontsize change beginning */ 43 private static final int CHANGE_FONTSIZE_WIDTH = 120; 44 45 /** Maximum width of candidate view */ 46 private int mMaxWidth; 47 /** Width of fontsize change beginning */ 48 private int mChangeFontSize; 49 /** Minimum width of candidate view */ 50 private int mCandidateMinimumWidth; 51 52 /** Alert dialog */ 53 private Dialog mCandidateDialog = null; 54 55 /** 56 * Constructor 57 * @param context context 58 */ 59 public CandidateTextView(Context context) { 60 super(context); 61 setSoundEffectsEnabled(false); 62 } 63 64 /** 65 * Constructor 66 * @param context context 67 * @param candidateMinimumHeight Minimum height of candidate view 68 * @param candidateMinimumWidth Minimum width of candidate view 69 * @param maxWidth Maximum width of candidate view 70 */ 71 public CandidateTextView(Context context, int candidateMinimumHeight, int candidateMinimumWidth, int maxWidth) { 72 super(context); 73 setSoundEffectsEnabled(false); 74 setTextColor(getResources().getColor(R.color.candidate_text_1line)); 75 setBackgroundResource(R.drawable.cand_back_1line); 76 setGravity(Gravity.CENTER); 77 setSingleLine(); 78 setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, 79 ViewGroup.LayoutParams.MATCH_PARENT, 80 1.0f)); 81 setMinHeight(candidateMinimumHeight); 82 setMinimumWidth(candidateMinimumWidth); 83 mCandidateMinimumWidth = candidateMinimumWidth; 84 mMaxWidth = maxWidth; 85 mChangeFontSize = maxWidth - CHANGE_FONTSIZE_WIDTH; 86 } 87 88 /** 89 * Textview is set to the best content for the display of candidate. 90 * @param WnnWord candidate 91 * @param wordCount candidate id 92 * @param OnClickListener Operation when clicking 93 * @param OnClickListener Operation when longclicking 94 * @return Set completion textview 95 */ 96 public CandidateTextView setCandidateTextView(WnnWord word, int wordCount, 97 OnClickListener candidateOnClick, 98 OnLongClickListener candidateOnLongClick) { 99 setTextSize(CUSTOM_FONTSIZE[0]); 100 setText(word.candidate); 101 setId(wordCount); 102 setVisibility(View.VISIBLE); 103 setPressed(false); 104 setWidth(0); 105 setEllipsize(null); 106 setOnClickListener(candidateOnClick); 107 setOnLongClickListener(candidateOnLongClick); 108 setCustomCandidate(word); 109 return this; 110 } 111 112 /** 113 * If the text view is set to the best width for the display, 114 * and it is necessary, the character is shortened. 115 * @param WnnWord candidate word 116 * @return int textview width 117 */ 118 public int setCustomCandidate(WnnWord word) { 119 TextPaint paint = getPaint(); 120 int width = (int)paint.measureText(word.candidate, 0, word.candidate.length()); 121 width += getPaddingLeft() + getPaddingRight(); 122 123 if (width > mCandidateMinimumWidth) { 124 int i; 125 for (i = 0; i < WIDTH_SIZE.length; i++) { 126 if (width > mChangeFontSize + WIDTH_SIZE[i]) { 127 setTextSize(CUSTOM_FONTSIZE[i]); 128 } 129 } 130 131 width = (int)paint.measureText(word.candidate, 0, word.candidate.length()); 132 width += getPaddingLeft() + getPaddingRight(); 133 134 if (width >= mMaxWidth) { 135 setWidth(mMaxWidth); 136 width = mMaxWidth; 137 setEllipsize(TextUtils.TruncateAt.START); 138 } else { 139 setWidth(width); 140 } 141 } else { 142 setWidth(mCandidateMinimumWidth); 143 width = mCandidateMinimumWidth; 144 } 145 return width; 146 } 147 148 /** @see View#setBackgroundDrawable */ 149 @Override public void setBackgroundDrawable(Drawable d) { 150 super.setBackgroundDrawable(d); 151 setPadding(20, 0, 20, 0); 152 } 153 154 /** 155 * Display Dialog. 156 * 157 * @param builder The Dialog builder, 158 */ 159 public void displayCandidateDialog(Dialog builder) { 160 if (mCandidateDialog != null) { 161 mCandidateDialog.dismiss(); 162 mCandidateDialog = null; 163 } 164 mCandidateDialog = builder; 165 Window window = mCandidateDialog.getWindow(); 166 WindowManager.LayoutParams lp = window.getAttributes(); 167 lp.token = getWindowToken(); 168 lp.type = WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG; 169 window.setAttributes(lp); 170 window.addFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM); 171 mCandidateDialog.show(); 172 } 173 174 /** @see android.view.View#onWindowVisibilityChanged */ 175 @Override protected void onWindowVisibilityChanged(int visibility) { 176 super.onWindowVisibilityChanged(visibility); 177 if ((visibility != VISIBLE) && (mCandidateDialog != null)) { 178 mCandidateDialog.dismiss(); 179 } 180 } 181 } 182
