public TerminalView(Context context, TerminalBridge bridge) {
super(context);
this.context = context;
this.bridge = bridge;
paint = new Paint();
setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT));
setFocusable(true);
setFocusableInTouchMode(true);
cursorPaint = new Paint();
cursorPaint.setColor(bridge.color[bridge.defaultFg]);
cursorPaint.setXfermode(new PixelXorXfermode(bridge.color[bridge.defaultBg]));
cursorPaint.setAntiAlias(true);
cursorStrokePaint = new Paint(cursorPaint);
cursorStrokePaint.setStrokeWidth(0.1f);
cursorStrokePaint.setStyle(Paint.Style.STROKE);
/*
* Set up our cursor indicators on a 1x1 Path object which we can later
* transform to our character width and height
*/
// TODO make this into a resource somehow
shiftCursor = new Path();
shiftCursor.lineTo(0.5f, 0.33f);
shiftCursor.lineTo(1.0f, 0.0f);
altCursor = new Path();
altCursor.moveTo(0.0f, 1.0f);
altCursor.lineTo(0.5f, 0.66f);
altCursor.lineTo(1.0f, 1.0f);
ctrlCursor = new Path();
ctrlCursor.moveTo(0.0f, 0.25f);
ctrlCursor.lineTo(1.0f, 0.5f);
ctrlCursor.lineTo(0.0f, 0.75f);
// For creating the transform when the terminal resizes
tempSrc = new RectF();
tempSrc.set(0.0f, 0.0f, 1.0f, 1.0f);
tempDst = new RectF();
scaleMatrix = new Matrix();
bridge.addFontSizeChangedListener(this);
// connect our view up to the bridge
setOnKeyListener(bridge.getKeyHandler());
mAccessibilityBuffer = new StringBuffer();
// Enable accessibility features if a screen reader is active.
new AccessibilityStateTester().execute((Void) null);
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
bridge.parentChanged(this);
scaleCursors();
}
/**
* Ask the {@link TerminalBridge} we're connected to to resize to a specific size.
*
* @param width
* @param height
*/
public void forceSize(int width, int height) {
bridge.resizeComputed(width, height, getWidth(), getHeight());
}
@SuppressLint("WrongCall") // Suppress the warning since this does not refer to Android's onDraw()
@Override
public void onDraw(Canvas canvas) {
if (bridge.bitmap != null) {
// draw the bitmap
bridge.onDraw();
// draw the bridge bitmap if it exists
canvas.drawBitmap(bridge.bitmap, 0, 0, paint);
// also draw cursor if visible
if (bridge.buffer.isCursorVisible()) {
int cursorColumn = bridge.buffer.getCursorColumn();
final int cursorRow = bridge.buffer.getCursorRow();
final int columns = bridge.buffer.getColumns();
if (cursorColumn == columns) cursorColumn = columns - 1;
if (cursorColumn < 0 || cursorRow < 0) return;
int currentAttribute = bridge.buffer.getAttributes(cursorColumn, cursorRow);
boolean onWideCharacter = (currentAttribute & VDUBuffer.FULLWIDTH) != 0;
int x = cursorColumn * bridge.charWidth;
int y =
(bridge.buffer.getCursorRow() + bridge.buffer.screenBase - bridge.buffer.windowBase)
* bridge.charHeight;
// Save the current clip and translation
canvas.save();
canvas.translate(x, y);
canvas.clipRect(0, 0, bridge.charWidth * (onWideCharacter ? 2 : 1), bridge.charHeight);
canvas.drawPaint(cursorPaint);
final int deadKey = bridge.getKeyHandler().getDeadKey();
if (deadKey != 0) {
canvas.drawText(new char[] {(char) deadKey}, 0, 1, 0, 0, cursorStrokePaint);
}
// Make sure we scale our decorations to the correct size.
canvas.concat(scaleMatrix);
int metaState = bridge.getKeyHandler().getMetaState();
if ((metaState & TerminalKeyListener.OUR_SHIFT_ON) != 0)
canvas.drawPath(shiftCursor, cursorStrokePaint);
else if ((metaState & TerminalKeyListener.OUR_SHIFT_LOCK) != 0)
canvas.drawPath(shiftCursor, cursorPaint);
if ((metaState & TerminalKeyListener.OUR_ALT_ON) != 0)
canvas.drawPath(altCursor, cursorStrokePaint);
else if ((metaState & TerminalKeyListener.OUR_ALT_LOCK) != 0)
canvas.drawPath(altCursor, cursorPaint);
if ((metaState & TerminalKeyListener.OUR_CTRL_ON) != 0)
canvas.drawPath(ctrlCursor, cursorStrokePaint);
else if ((metaState & TerminalKeyListener.OUR_CTRL_LOCK) != 0)
canvas.drawPath(ctrlCursor, cursorPaint);
// Restore previous clip region
canvas.restore();
}
// draw any highlighted area
if (bridge.isSelectingForCopy()) {
SelectionArea area = bridge.getSelectionArea();
canvas.save(Canvas.CLIP_SAVE_FLAG);
canvas.clipRect(
area.getLeft() * bridge.charWidth,
area.getTop() * bridge.charHeight,
(area.getRight() + 1) * bridge.charWidth,
(area.getBottom() + 1) * bridge.charHeight);
canvas.drawPaint(cursorPaint);
canvas.restore();
}
}
}
public void destroy() {
// tell bridge to destroy its bitmap
bridge.parentDestroyed();
}