1 /* 2 * Copyright (C) 2013 The Android Open Source Project 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 17 package com.android.terminal; 18 19 import static com.android.terminal.Terminal.TAG; 20 21 import android.content.Context; 22 import android.graphics.Canvas; 23 import android.graphics.Color; 24 import android.util.Log; 25 import android.view.View; 26 27 import com.android.terminal.TerminalView.TerminalMetrics; 28 29 /** 30 * Rendered contents of a single line of a {@link Terminal} session. 31 */ 32 public class TerminalLineView extends View { 33 public int pos; 34 public int row; 35 public int cols; 36 37 private final Terminal mTerm; 38 private final TerminalMetrics mMetrics; 39 TerminalLineView(Context context, Terminal term, TerminalMetrics metrics)40 public TerminalLineView(Context context, Terminal term, TerminalMetrics metrics) { 41 super(context); 42 mTerm = term; 43 mMetrics = metrics; 44 } 45 46 @Override onMeasure(int widthMeasureSpec, int heightMeasureSpec)47 protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 48 setMeasuredDimension(getDefaultSize(0, widthMeasureSpec), 49 getDefaultSize(mMetrics.charHeight, heightMeasureSpec)); 50 } 51 52 @Override onDraw(Canvas canvas)53 protected void onDraw(Canvas canvas) { 54 super.onDraw(canvas); 55 56 if (mTerm == null) { 57 Log.w(TAG, "onDraw() without a terminal"); 58 canvas.drawColor(Color.MAGENTA); 59 return; 60 } 61 62 final TerminalMetrics m = mMetrics; 63 64 for (int col = 0; col < cols;) { 65 mTerm.getCellRun(row, col, m.run); 66 67 m.bgPaint.setColor(m.run.bg); 68 m.textPaint.setColor(m.run.fg); 69 70 final int x = col * m.charWidth; 71 final int xEnd = x + (m.run.colSize * m.charWidth); 72 73 canvas.save(); 74 canvas.translate(x, 0); 75 canvas.clipRect(0, 0, m.run.colSize * m.charWidth, m.charHeight); 76 77 canvas.drawPaint(m.bgPaint); 78 canvas.drawPosText(m.run.data, 0, m.run.dataSize, m.pos, m.textPaint); 79 80 canvas.restore(); 81 82 col += m.run.colSize; 83 } 84 85 if (mTerm.getCursorVisible() && mTerm.getCursorRow() == row) { 86 canvas.save(); 87 canvas.translate(mTerm.getCursorCol() * m.charWidth, 0); 88 canvas.drawRect(0, 0, m.charWidth, m.charHeight, m.cursorPaint); 89 canvas.restore(); 90 } 91 92 } 93 } 94