1/*
2 * Copyright 2012 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#include "SkTileGridPicture.h"
9
10#include "SkPictureStateTree.h"
11#include "SkTileGrid.h"
12
13SkTileGridPicture::SkTileGridPicture(int width, int height, const TileGridInfo& info) {
14    SkASSERT(info.fMargin.width() >= 0);
15    SkASSERT(info.fMargin.height() >= 0);
16    fInfo = info;
17    // Note: SkIRects are non-inclusive of the right() column and bottom() row.
18    // For example, an SkIRect at 0,0 with a size of (1,1) will only have
19    // content at pixel (0,0) and will report left=0 and right=1, hence the
20    // "-1"s below.
21    fXTileCount = (width + info.fTileInterval.width() - 1) / info.fTileInterval.width();
22    fYTileCount = (height + info.fTileInterval.height() - 1) / info.fTileInterval.height();
23}
24
25SkBBoxHierarchy* SkTileGridPicture::createBBoxHierarchy() const {
26    return SkNEW_ARGS(SkTileGrid, (fXTileCount, fYTileCount, fInfo,
27         SkTileGridNextDatum<SkPictureStateTree::Draw>));
28}
29