Merge "Scale folders to fit within the available height and width." into ub-launcher3-master

                + res.getDimensionPixelSize(R.dimen.folder_label_padding_bottom)

                + Utilities.calculateTextHeight(res.getDimension(R.dimen.folder_label_text_size));

        updateFolderCellSize(1f, dm, res, folderBottomPanelSize);

        updateFolderCellSize(1f, dm, res);

        // Check to see if the icons fit within the available height.  If not, then scale down.

        float usedHeight = (folderCellHeightPx * inv.numFolderRows) + folderBottomPanelSize;

        int maxHeight = availableHeightPx - getTotalWorkspacePadding().y - (2 * edgeMarginPx);

        if (usedHeight > maxHeight) {

            float scale = maxHeight / usedHeight;

            updateFolderCellSize(scale, dm, res, folderBottomPanelSize);

        // Don't let the folder get too close to the edges of the screen.

        int folderMargin = 4 * edgeMarginPx;

        // Check if the icons fit within the available height.

        float usedHeight = folderCellHeightPx * inv.numFolderRows + folderBottomPanelSize;

        int maxHeight = availableHeightPx - getTotalWorkspacePadding().y - folderMargin;

        float scaleY = maxHeight / usedHeight;

        // Check if the icons fit within the available width.

        float usedWidth = folderCellWidthPx * inv.numFolderColumns;

        int maxWidth = availableWidthPx - getTotalWorkspacePadding().x - folderMargin;

        float scaleX = maxWidth / usedWidth;

        float scale = Math.min(scaleX, scaleY);

        if (scale < 1f) {

            updateFolderCellSize(scale, dm, res);

        }

    }

    private void updateFolderCellSize(float scale, DisplayMetrics dm, Resources res,

             int folderBottomPanelSize) {

    private void updateFolderCellSize(float scale, DisplayMetrics dm, Resources res) {

        folderChildIconSizePx = (int) (Utilities.pxFromDp(inv.iconSize, dm) * scale);

        folderChildTextSizePx =

                (int) (res.getDimensionPixelSize(R.dimen.folder_child_text_size) * scale);

        int cellPaddingX = (int) (res.getDimensionPixelSize(R.dimen.folder_cell_x_padding) * scale);

        int cellPaddingY = (int) (res.getDimensionPixelSize(R.dimen.folder_cell_y_padding) * scale);

        // Don't let the folder get too close to the edges of the screen.

        folderCellWidthPx = Math.min(folderChildIconSizePx + 2 * cellPaddingX,

                (availableWidthPx - 4 * edgeMarginPx) / inv.numFolderColumns);

        folderCellHeightPx = Math.min(folderChildIconSizePx + 2 * cellPaddingY + textHeight,

                (availableHeightPx - 4 * edgeMarginPx - folderBottomPanelSize) / inv.numFolderRows);

        folderCellWidthPx = folderChildIconSizePx + 2 * cellPaddingX;

        folderCellHeightPx = folderChildIconSizePx + 2 * cellPaddingY + textHeight;

        folderChildDrawablePaddingPx = Math.max(0,

                (folderCellHeightPx - folderChildIconSizePx - textHeight) / 3);

    }