@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();
}
}
}
/**
* Handle onKey() events coming down from a {@link TerminalView} above us. Modify the keys to make
* more sense to a host then pass it to the transport.
*/
public boolean onKey(View v, int keyCode, KeyEvent event) {
try {
final boolean hardKeyboardHidden = manager.hardKeyboardHidden;
// Ignore all key-up events except for the special keys
if (event.getAction() == KeyEvent.ACTION_UP) {
// There's nothing here for virtual keyboard users.
if (!hardKeyboard || (hardKeyboard && hardKeyboardHidden)) return false;
// skip keys if we aren't connected yet or have been disconnected
if (bridge.isDisconnected() || bridge.transport == null) return false;
if (PreferenceConstants.KEYMODE_RIGHT.equals(keymode)) {
if (keyCode == KeyEvent.KEYCODE_ALT_RIGHT && (metaState & META_SLASH) != 0) {
metaState &= ~(META_SLASH | META_TRANSIENT);
bridge.transport.write('/');
return true;
} else if (keyCode == KeyEvent.KEYCODE_SHIFT_RIGHT && (metaState & META_TAB) != 0) {
metaState &= ~(META_TAB | META_TRANSIENT);
bridge.transport.write(0x09);
return true;
}
} else if (PreferenceConstants.KEYMODE_LEFT.equals(keymode)) {
if (keyCode == KeyEvent.KEYCODE_ALT_LEFT && (metaState & META_SLASH) != 0) {
metaState &= ~(META_SLASH | META_TRANSIENT);
bridge.transport.write('/');
return true;
} else if (keyCode == KeyEvent.KEYCODE_SHIFT_LEFT && (metaState & META_TAB) != 0) {
metaState &= ~(META_TAB | META_TRANSIENT);
bridge.transport.write(0x09);
return true;
}
}
return false;
}
// check for terminal resizing keys
if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
bridge.increaseFontSize();
return true;
} else if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
bridge.decreaseFontSize();
return true;
}
// skip keys if we aren't connected yet or have been disconnected
if (bridge.isDisconnected() || bridge.transport == null) return false;
bridge.resetScrollPosition();
if (keyCode == KeyEvent.KEYCODE_UNKNOWN && event.getAction() == KeyEvent.ACTION_MULTIPLE) {
byte[] input = event.getCharacters().getBytes(encoding);
bridge.transport.write(input);
return true;
}
int curMetaState = event.getMetaState();
final int orgMetaState = curMetaState;
if ((metaState & META_SHIFT_MASK) != 0) {
curMetaState |= KeyEvent.META_SHIFT_ON;
}
if ((metaState & META_ALT_MASK) != 0) {
curMetaState |= KeyEvent.META_ALT_ON;
}
int key = event.getUnicodeChar(curMetaState);
// no hard keyboard? ALT-k should pass through to below
if ((orgMetaState & KeyEvent.META_ALT_ON) != 0 && (!hardKeyboard || hardKeyboardHidden)) {
key = 0;
}
if ((key & KeyCharacterMap.COMBINING_ACCENT) != 0) {
mDeadKey = key & KeyCharacterMap.COMBINING_ACCENT_MASK;
return true;
}
if (mDeadKey != 0) {
key = KeyCharacterMap.getDeadChar(mDeadKey, keyCode);
mDeadKey = 0;
}
final boolean printing = (key != 0 && keyCode != KeyEvent.KEYCODE_ENTER);
// otherwise pass through to existing session
// print normal keys
if (printing) {
metaState &= ~(META_SLASH | META_TAB);
// Remove shift and alt modifiers
final int lastMetaState = metaState;
metaState &= ~(META_SHIFT_ON | META_ALT_ON);
if (metaState != lastMetaState) {
bridge.redraw();
}
if ((metaState & META_CTRL_MASK) != 0) {
metaState &= ~META_CTRL_ON;
bridge.redraw();
// If there is no hard keyboard or there is a hard keyboard currently hidden,
// CTRL-1 through CTRL-9 will send F1 through F9
if ((!hardKeyboard || (hardKeyboard && hardKeyboardHidden)) && sendFunctionKey(keyCode))
return true;
key = keyAsControl(key);
}
// handle pressing f-keys
if ((hardKeyboard && !hardKeyboardHidden)
&& (curMetaState & KeyEvent.META_SHIFT_ON) != 0
&& sendFunctionKey(keyCode)) return true;
if (key < 0x80) bridge.transport.write(key);
else
// TODO write encoding routine that doesn't allocate each time
bridge.transport.write(new String(Character.toChars(key)).getBytes(encoding));
return true;
}
// send ctrl and meta-keys as appropriate
if (!hardKeyboard || hardKeyboardHidden) {
int k = event.getUnicodeChar(0);
int k0 = k;
boolean sendCtrl = false;
boolean sendMeta = false;
if (k != 0) {
if ((orgMetaState & HC_META_CTRL_ON) != 0) {
k = keyAsControl(k);
if (k != k0) sendCtrl = true;
// send F1-F10 via CTRL-1 through CTRL-0
if (!sendCtrl && sendFunctionKey(keyCode)) return true;
} else if ((orgMetaState & KeyEvent.META_ALT_ON) != 0) {
sendMeta = true;
sendEscape();
}
if (sendMeta || sendCtrl) {
bridge.transport.write(k);
return true;
}
}
}
// try handling keymode shortcuts
if (hardKeyboard && !hardKeyboardHidden && event.getRepeatCount() == 0) {
if (PreferenceConstants.KEYMODE_RIGHT.equals(keymode)) {
switch (keyCode) {
case KeyEvent.KEYCODE_ALT_RIGHT:
metaState |= META_SLASH;
return true;
case KeyEvent.KEYCODE_SHIFT_RIGHT:
metaState |= META_TAB;
return true;
case KeyEvent.KEYCODE_SHIFT_LEFT:
metaPress(META_SHIFT_ON);
return true;
case KeyEvent.KEYCODE_ALT_LEFT:
metaPress(META_ALT_ON);
return true;
}
} else if (PreferenceConstants.KEYMODE_LEFT.equals(keymode)) {
switch (keyCode) {
case KeyEvent.KEYCODE_ALT_LEFT:
metaState |= META_SLASH;
return true;
case KeyEvent.KEYCODE_SHIFT_LEFT:
metaState |= META_TAB;
return true;
case KeyEvent.KEYCODE_SHIFT_RIGHT:
metaPress(META_SHIFT_ON);
return true;
case KeyEvent.KEYCODE_ALT_RIGHT:
metaPress(META_ALT_ON);
return true;
}
} else {
switch (keyCode) {
case KeyEvent.KEYCODE_ALT_LEFT:
case KeyEvent.KEYCODE_ALT_RIGHT:
metaPress(META_ALT_ON);
return true;
case KeyEvent.KEYCODE_SHIFT_LEFT:
case KeyEvent.KEYCODE_SHIFT_RIGHT:
metaPress(META_SHIFT_ON);
return true;
}
}
}
// look for special chars
switch (keyCode) {
case KEYCODE_ESCAPE:
sendEscape();
return true;
case KeyEvent.KEYCODE_TAB:
bridge.transport.write(0x09);
return true;
case KeyEvent.KEYCODE_SEARCH:
// check to see which shortcut the search button triggers
String search =
manager.prefs.getString(PreferenceConstants.SEARCH, PreferenceConstants.SEARCH_ESC);
if (PreferenceConstants.SEARCH_BACKBTN.equals(search)) {
// TODO: figure out what to do here!
} else if (PreferenceConstants.SEARCH_ESC.equals(search)) {
sendEscape();
}
return true;
case KeyEvent.KEYCODE_CAMERA:
// check to see which shortcut the camera button triggers
String camera =
manager.prefs.getString(
PreferenceConstants.CAMERA, PreferenceConstants.CAMERA_CTRLA_SPACE);
if (PreferenceConstants.CAMERA_CTRLA_SPACE.equals(camera)) {
bridge.transport.write(0x01);
bridge.transport.write(' ');
} else if (PreferenceConstants.CAMERA_CTRLA.equals(camera)) {
bridge.transport.write(0x01);
} else if (PreferenceConstants.CAMERA_ESC.equals(camera)) {
((vt320) buffer).keyTyped(vt320.KEY_ESCAPE, ' ', 0);
} else if (PreferenceConstants.CAMERA_ESC_A.equals(camera)) {
((vt320) buffer).keyTyped(vt320.KEY_ESCAPE, ' ', 0);
bridge.transport.write('a');
}
break;
case KeyEvent.KEYCODE_DEL:
((vt320) buffer).keyPressed(vt320.KEY_BACK_SPACE, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
return true;
case KeyEvent.KEYCODE_ENTER:
((vt320) buffer).keyTyped(vt320.KEY_ENTER, ' ', 0);
metaState &= ~META_TRANSIENT;
return true;
case KeyEvent.KEYCODE_DPAD_LEFT:
if (selectingForCopy) {
selectionArea.decrementColumn();
bridge.redraw();
} else {
((vt320) buffer).keyPressed(vt320.KEY_LEFT, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
}
return true;
case KeyEvent.KEYCODE_DPAD_UP:
if (selectingForCopy) {
selectionArea.decrementRow();
bridge.redraw();
} else {
((vt320) buffer).keyPressed(vt320.KEY_UP, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
}
return true;
case KeyEvent.KEYCODE_DPAD_DOWN:
if (selectingForCopy) {
selectionArea.incrementRow();
bridge.redraw();
} else {
((vt320) buffer).keyPressed(vt320.KEY_DOWN, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
}
return true;
case KeyEvent.KEYCODE_DPAD_RIGHT:
if (selectingForCopy) {
selectionArea.incrementColumn();
bridge.redraw();
} else {
((vt320) buffer).keyPressed(vt320.KEY_RIGHT, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
}
return true;
case KeyEvent.KEYCODE_DPAD_CENTER:
if (selectingForCopy) {
if (selectionArea.isSelectingOrigin()) selectionArea.finishSelectingOrigin();
else {
if (clipboard != null) {
// copy selected area to clipboard
String copiedText = selectionArea.copyFrom(buffer);
clipboard.setText(copiedText);
// XXX STOPSHIP
// manager.notifyUser(manager.getString(
// R.string.console_copy_done,
// copiedText.length()));
selectingForCopy = false;
selectionArea.reset();
}
}
} else {
if ((metaState & META_CTRL_ON) != 0) {
sendEscape();
metaState &= ~META_CTRL_ON;
} else metaPress(META_CTRL_ON);
}
bridge.redraw();
return true;
case KeyEvent.KEYCODE_PAGE_UP:
((vt320) buffer).keyPressed(vt320.KEY_PAGE_UP, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
return true;
case KeyEvent.KEYCODE_PAGE_DOWN:
((vt320) buffer).keyPressed(vt320.KEY_PAGE_DOWN, ' ', getStateForBuffer());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
return true;
case KeyEvent.KEYCODE_MOVE_HOME:
// ((vt320) buffer).keyPressed(vt320.KEY_HOME, ' ',getStateForBuffer());
((vt320) buffer).keyTyped(vt320.KEY_ESCAPE, ' ', 0);
bridge.transport.write("[1~".getBytes());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
return true;
case KeyEvent.KEYCODE_MOVE_END:
// ((vt320) buffer).keyPressed(vt320.KEY_END, ' ',getStateForBuffer());
((vt320) buffer).keyTyped(vt320.KEY_ESCAPE, ' ', 0);
bridge.transport.write("[4~".getBytes());
metaState &= ~META_TRANSIENT;
bridge.tryKeyVibrate();
return true;
}
} catch (IOException e) {
Log.e(TAG, "Problem while trying to handle an onKey() event", e);
try {
bridge.transport.flush();
} catch (IOException ioe) {
Log.d(TAG, "Our transport was closed, dispatching disconnect event");
bridge.dispatchDisconnect(false);
}
} catch (NullPointerException npe) {
Log.d(TAG, "Input before connection established ignored.");
return true;
}
return false;
}