Examples with Key android.inputmethodservice.Keyboard.Key used on opensource projects

Example 41 with Key

use of android.inputmethodservice.Keyboard.Key in project platform_frameworks_base by android.

the class KeyboardView method showKey.

private void showKey(final int keyIndex) {
    final PopupWindow previewPopup = mPreviewPopup;
    final Key[] keys = mKeys;
    if (keyIndex < 0 || keyIndex >= mKeys.length)
        return;
    Key key = keys[keyIndex];
    if (key.icon != null) {
        mPreviewText.setCompoundDrawables(null, null, null, key.iconPreview != null ? key.iconPreview : key.icon);
        mPreviewText.setText(null);
    } else {
        mPreviewText.setCompoundDrawables(null, null, null, null);
        mPreviewText.setText(getPreviewText(key));
        if (key.label.length() > 1 && key.codes.length < 2) {
            mPreviewText.setTextSize(TypedValue.COMPLEX_UNIT_PX, mKeyTextSize);
            mPreviewText.setTypeface(Typeface.DEFAULT_BOLD);
        } else {
            mPreviewText.setTextSize(TypedValue.COMPLEX_UNIT_PX, mPreviewTextSizeLarge);
            mPreviewText.setTypeface(Typeface.DEFAULT);
        }
    }
    mPreviewText.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
    int popupWidth = Math.max(mPreviewText.getMeasuredWidth(), key.width + mPreviewText.getPaddingLeft() + mPreviewText.getPaddingRight());
    final int popupHeight = mPreviewHeight;
    LayoutParams lp = mPreviewText.getLayoutParams();
    if (lp != null) {
        lp.width = popupWidth;
        lp.height = popupHeight;
    }
    if (!mPreviewCentered) {
        mPopupPreviewX = key.x - mPreviewText.getPaddingLeft() + mPaddingLeft;
        mPopupPreviewY = key.y - popupHeight + mPreviewOffset;
    } else {
        // TODO: Fix this if centering is brought back
        mPopupPreviewX = 160 - mPreviewText.getMeasuredWidth() / 2;
        mPopupPreviewY = -mPreviewText.getMeasuredHeight();
    }
    mHandler.removeMessages(MSG_REMOVE_PREVIEW);
    getLocationInWindow(mCoordinates);
    // Offset may be zero
    mCoordinates[0] += mMiniKeyboardOffsetX;
    // Offset may be zero
    mCoordinates[1] += mMiniKeyboardOffsetY;
    // Set the preview background state
    mPreviewText.getBackground().setState(key.popupResId != 0 ? LONG_PRESSABLE_STATE_SET : EMPTY_STATE_SET);
    mPopupPreviewX += mCoordinates[0];
    mPopupPreviewY += mCoordinates[1];
    // If the popup cannot be shown above the key, put it on the side
    getLocationOnScreen(mCoordinates);
    if (mPopupPreviewY + mCoordinates[1] < 0) {
        // the right, offset by enough to see at least one key to the left/right.
        if (key.x + key.width <= getWidth() / 2) {
            mPopupPreviewX += (int) (key.width * 2.5);
        } else {
            mPopupPreviewX -= (int) (key.width * 2.5);
        }
        mPopupPreviewY += popupHeight;
    }
    if (previewPopup.isShowing()) {
        previewPopup.update(mPopupPreviewX, mPopupPreviewY, popupWidth, popupHeight);
    } else {
        previewPopup.setWidth(popupWidth);
        previewPopup.setHeight(popupHeight);
        previewPopup.showAtLocation(mPopupParent, Gravity.NO_GRAVITY, mPopupPreviewX, mPopupPreviewY);
    }
    mPreviewText.setVisibility(VISIBLE);
}

Example 42 with Key

use of android.inputmethodservice.Keyboard.Key in project platform_frameworks_base by android.

the class KeyboardView method computeProximityThreshold.

/**
     * Compute the average distance between adjacent keys (horizontally and vertically)
     * and square it to get the proximity threshold. We use a square here and in computing
     * the touch distance from a key's center to avoid taking a square root.
     * @param keyboard
     */
private void computeProximityThreshold(Keyboard keyboard) {
    if (keyboard == null)
        return;
    final Key[] keys = mKeys;
    if (keys == null)
        return;
    int length = keys.length;
    int dimensionSum = 0;
    for (int i = 0; i < length; i++) {
        Key key = keys[i];
        dimensionSum += Math.min(key.width, key.height) + key.gap;
    }
    if (dimensionSum < 0 || length == 0)
        return;
    mProximityThreshold = (int) (dimensionSum * 1.4f / length);
    // Square it
    mProximityThreshold *= mProximityThreshold;
}

Example 43 with Key

use of android.inputmethodservice.Keyboard.Key in project platform_frameworks_base by android.

the class KeyboardView method onBufferDraw.

private void onBufferDraw() {
    if (mBuffer == null || mKeyboardChanged) {
        if (mBuffer == null || mKeyboardChanged && (mBuffer.getWidth() != getWidth() || mBuffer.getHeight() != getHeight())) {
            // Make sure our bitmap is at least 1x1
            final int width = Math.max(1, getWidth());
            final int height = Math.max(1, getHeight());
            mBuffer = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
            mCanvas = new Canvas(mBuffer);
        }
        invalidateAllKeys();
        mKeyboardChanged = false;
    }
    final Canvas canvas = mCanvas;
    canvas.clipRect(mDirtyRect, Op.REPLACE);
    if (mKeyboard == null)
        return;
    final Paint paint = mPaint;
    final Drawable keyBackground = mKeyBackground;
    final Rect clipRegion = mClipRegion;
    final Rect padding = mPadding;
    final int kbdPaddingLeft = mPaddingLeft;
    final int kbdPaddingTop = mPaddingTop;
    final Key[] keys = mKeys;
    final Key invalidKey = mInvalidatedKey;
    paint.setColor(mKeyTextColor);
    boolean drawSingleKey = false;
    if (invalidKey != null && canvas.getClipBounds(clipRegion)) {
        // Is clipRegion completely contained within the invalidated key?
        if (invalidKey.x + kbdPaddingLeft - 1 <= clipRegion.left && invalidKey.y + kbdPaddingTop - 1 <= clipRegion.top && invalidKey.x + invalidKey.width + kbdPaddingLeft + 1 >= clipRegion.right && invalidKey.y + invalidKey.height + kbdPaddingTop + 1 >= clipRegion.bottom) {
            drawSingleKey = true;
        }
    }
    canvas.drawColor(0x00000000, PorterDuff.Mode.CLEAR);
    final int keyCount = keys.length;
    for (int i = 0; i < keyCount; i++) {
        final Key key = keys[i];
        if (drawSingleKey && invalidKey != key) {
            continue;
        }
        int[] drawableState = key.getCurrentDrawableState();
        keyBackground.setState(drawableState);
        // Switch the character to uppercase if shift is pressed
        String label = key.label == null ? null : adjustCase(key.label).toString();
        final Rect bounds = keyBackground.getBounds();
        if (key.width != bounds.right || key.height != bounds.bottom) {
            keyBackground.setBounds(0, 0, key.width, key.height);
        }
        canvas.translate(key.x + kbdPaddingLeft, key.y + kbdPaddingTop);
        keyBackground.draw(canvas);
        if (label != null) {
            // For characters, use large font. For labels like "Done", use small font.
            if (label.length() > 1 && key.codes.length < 2) {
                paint.setTextSize(mLabelTextSize);
                paint.setTypeface(Typeface.DEFAULT_BOLD);
            } else {
                paint.setTextSize(mKeyTextSize);
                paint.setTypeface(Typeface.DEFAULT);
            }
            // Draw a drop shadow for the text
            paint.setShadowLayer(mShadowRadius, 0, 0, mShadowColor);
            // Draw the text
            canvas.drawText(label, (key.width - padding.left - padding.right) / 2 + padding.left, (key.height - padding.top - padding.bottom) / 2 + (paint.getTextSize() - paint.descent()) / 2 + padding.top, paint);
            // Turn off drop shadow
            paint.setShadowLayer(0, 0, 0, 0);
        } else if (key.icon != null) {
            final int drawableX = (key.width - padding.left - padding.right - key.icon.getIntrinsicWidth()) / 2 + padding.left;
            final int drawableY = (key.height - padding.top - padding.bottom - key.icon.getIntrinsicHeight()) / 2 + padding.top;
            canvas.translate(drawableX, drawableY);
            key.icon.setBounds(0, 0, key.icon.getIntrinsicWidth(), key.icon.getIntrinsicHeight());
            key.icon.draw(canvas);
            canvas.translate(-drawableX, -drawableY);
        }
        canvas.translate(-key.x - kbdPaddingLeft, -key.y - kbdPaddingTop);
    }
    mInvalidatedKey = null;
    // Overlay a dark rectangle to dim the keyboard
    if (mMiniKeyboardOnScreen) {
        paint.setColor((int) (mBackgroundDimAmount * 0xFF) << 24);
        canvas.drawRect(0, 0, getWidth(), getHeight(), paint);
    }
    if (DEBUG && mShowTouchPoints) {
        paint.setAlpha(128);
        paint.setColor(0xFFFF0000);
        canvas.drawCircle(mStartX, mStartY, 3, paint);
        canvas.drawLine(mStartX, mStartY, mLastX, mLastY, paint);
        paint.setColor(0xFF0000FF);
        canvas.drawCircle(mLastX, mLastY, 3, paint);
        paint.setColor(0xFF00FF00);
        canvas.drawCircle((mStartX + mLastX) / 2, (mStartY + mLastY) / 2, 2, paint);
    }
    mDrawPending = false;
    mDirtyRect.setEmpty();
}

Example 44 with Key

use of android.inputmethodservice.Keyboard.Key in project platform_frameworks_base by android.

the class KeyboardView method openPopupIfRequired.

private boolean openPopupIfRequired(MotionEvent me) {
    // Check if we have a popup layout specified first.
    if (mPopupLayout == 0) {
        return false;
    }
    if (mCurrentKey < 0 || mCurrentKey >= mKeys.length) {
        return false;
    }
    Key popupKey = mKeys[mCurrentKey];
    boolean result = onLongPress(popupKey);
    if (result) {
        mAbortKey = true;
        showPreview(NOT_A_KEY);
    }
    return result;
}

Example 45 with Key

use of android.inputmethodservice.Keyboard.Key in project platform_frameworks_base by android.

the class KeyboardView method repeatKey.

private boolean repeatKey() {
    Key key = mKeys[mRepeatKeyIndex];
    detectAndSendKey(mCurrentKey, key.x, key.y, mLastTapTime);
    return true;
}