Examples with Alignment android.text.Layout.Alignment used on opensource projects

Example 6 with Alignment

use of android.text.Layout.Alignment in project android_frameworks_base by DirtyUnicorns.

the class Touch method scrollTo.

/**
     * Scrolls the specified widget to the specified coordinates, except
     * constrains the X scrolling position to the horizontal regions of
     * the text that will be visible after scrolling to the specified
     * Y position.
     */
public static void scrollTo(TextView widget, Layout layout, int x, int y) {
    final int horizontalPadding = widget.getTotalPaddingLeft() + widget.getTotalPaddingRight();
    final int availableWidth = widget.getWidth() - horizontalPadding;
    final int top = layout.getLineForVertical(y);
    Alignment a = layout.getParagraphAlignment(top);
    boolean ltr = layout.getParagraphDirection(top) > 0;
    int left, right;
    if (widget.getHorizontallyScrolling()) {
        final int verticalPadding = widget.getTotalPaddingTop() + widget.getTotalPaddingBottom();
        final int bottom = layout.getLineForVertical(y + widget.getHeight() - verticalPadding);
        left = Integer.MAX_VALUE;
        right = 0;
        for (int i = top; i <= bottom; i++) {
            left = (int) Math.min(left, layout.getLineLeft(i));
            right = (int) Math.max(right, layout.getLineRight(i));
        }
    } else {
        left = 0;
        right = availableWidth;
    }
    final int actualWidth = right - left;
    if (actualWidth < availableWidth) {
        if (a == Alignment.ALIGN_CENTER) {
            x = left - ((availableWidth - actualWidth) / 2);
        } else if ((ltr && (a == Alignment.ALIGN_OPPOSITE)) || (!ltr && (a == Alignment.ALIGN_NORMAL)) || (a == Alignment.ALIGN_RIGHT)) {
            // align_opposite does NOT mean align_right, we need the paragraph
            // direction to resolve it to left or right
            x = left - (availableWidth - actualWidth);
        } else {
            x = left;
        }
    } else {
        x = Math.min(x, right - availableWidth);
        x = Math.max(x, left);
    }
    widget.scrollTo(x, y);
}

Example 7 with Alignment

use of android.text.Layout.Alignment in project android_frameworks_base by AOSPA.

the class Touch method scrollTo.

/**
     * Scrolls the specified widget to the specified coordinates, except
     * constrains the X scrolling position to the horizontal regions of
     * the text that will be visible after scrolling to the specified
     * Y position.
     */
public static void scrollTo(TextView widget, Layout layout, int x, int y) {
    final int horizontalPadding = widget.getTotalPaddingLeft() + widget.getTotalPaddingRight();
    final int availableWidth = widget.getWidth() - horizontalPadding;
    final int top = layout.getLineForVertical(y);
    Alignment a = layout.getParagraphAlignment(top);
    boolean ltr = layout.getParagraphDirection(top) > 0;
    int left, right;
    if (widget.getHorizontallyScrolling()) {
        final int verticalPadding = widget.getTotalPaddingTop() + widget.getTotalPaddingBottom();
        final int bottom = layout.getLineForVertical(y + widget.getHeight() - verticalPadding);
        left = Integer.MAX_VALUE;
        right = 0;
        for (int i = top; i <= bottom; i++) {
            left = (int) Math.min(left, layout.getLineLeft(i));
            right = (int) Math.max(right, layout.getLineRight(i));
        }
    } else {
        left = 0;
        right = availableWidth;
    }
    final int actualWidth = right - left;
    if (actualWidth < availableWidth) {
        if (a == Alignment.ALIGN_CENTER) {
            x = left - ((availableWidth - actualWidth) / 2);
        } else if ((ltr && (a == Alignment.ALIGN_OPPOSITE)) || (!ltr && (a == Alignment.ALIGN_NORMAL)) || (a == Alignment.ALIGN_RIGHT)) {
            // align_opposite does NOT mean align_right, we need the paragraph
            // direction to resolve it to left or right
            x = left - (availableWidth - actualWidth);
        } else {
            x = left;
        }
    } else {
        x = Math.min(x, right - availableWidth);
        x = Math.max(x, left);
    }
    widget.scrollTo(x, y);
}

Example 8 with Alignment

use of android.text.Layout.Alignment in project XobotOS by xamarin.

the class Touch method scrollTo.

/**
     * Scrolls the specified widget to the specified coordinates, except
     * constrains the X scrolling position to the horizontal regions of
     * the text that will be visible after scrolling to the specified
     * Y position.
     */
public static void scrollTo(TextView widget, Layout layout, int x, int y) {
    final int verticalPadding = widget.getTotalPaddingTop() + widget.getTotalPaddingBottom();
    final int top = layout.getLineForVertical(y);
    final int bottom = layout.getLineForVertical(y + widget.getHeight() - verticalPadding);
    int left = Integer.MAX_VALUE;
    int right = 0;
    Alignment a = layout.getParagraphAlignment(top);
    boolean ltr = layout.getParagraphDirection(top) > 0;
    for (int i = top; i <= bottom; i++) {
        left = (int) Math.min(left, layout.getLineLeft(i));
        right = (int) Math.max(right, layout.getLineRight(i));
    }
    final int hoizontalPadding = widget.getTotalPaddingLeft() + widget.getTotalPaddingRight();
    final int availableWidth = widget.getWidth() - hoizontalPadding;
    final int actualWidth = right - left;
    if (actualWidth < availableWidth) {
        if (a == Alignment.ALIGN_CENTER) {
            x = left - ((availableWidth - actualWidth) / 2);
        } else if ((ltr && (a == Alignment.ALIGN_OPPOSITE)) || (a == Alignment.ALIGN_RIGHT)) {
            // align_opposite does NOT mean align_right, we need the paragraph
            // direction to resolve it to left or right
            x = left - (availableWidth - actualWidth);
        } else {
            x = left;
        }
    } else {
        x = Math.min(x, right - availableWidth);
        x = Math.max(x, left);
    }
    widget.scrollTo(x, y);
}