@Override
public void drawTo(Canvas drawCanvas, float left, float top, Paint paint, boolean onlyDirty) {
final Rect src = new Rect(0, 0, mTileSize, mTileSize);
final Rect dst = new Rect(0, 0, mTileSize, mTileSize);
drawCanvas.save();
drawCanvas.translate(-left, -top);
drawCanvas.clipRect(0, 0, mWidth, mHeight);
for (int j = 0; j < mTilesY; j++) {
for (int i = 0; i < mTilesX; i++) {
dst.offsetTo(i * mTileSize, j * mTileSize);
final int p = j * mTilesX + i;
final Tile tile = mTiles[p];
if (!onlyDirty || tile.dirty) {
drawCanvas.drawBitmap(tile.getBitmap(), src, dst, paint);
tile.dirty = false;
if (mDebug) {
mDrawCount++;
dbgPaint.setColor(DEBUG_COLORS[tile.top % DEBUG_COLORS.length]);
// drawCanvas.drawRect(dst, (mDrawCount % 2 == 0) ? dbgPaint1 : dbgPaint2);
drawCanvas.drawRect(dst, dbgPaint);
// drawCanvas.drawRect(dst, dbgStroke);
drawCanvas.drawText(
String.format("%d,%d v%d", tile.x, tile.y, tile.top),
dst.left + 4,
dst.bottom - 4,
dbgTextPaint);
}
}
}
}
drawCanvas.restore();
}
public void drawColor(int color, PorterDuff.Mode mode) {
for (int i = 0; i < mTiles.length; i++) {
final Tile tile = mTiles[i];
getDrawingCanvas(tile).drawColor(color, mode);
tile.dirty = true;
}
}
public void drawRect(float l, float t, float r, float b, Paint paint) {
final int tilel = max(0, (int) FloatMath.floor((l - INVALIDATE_PADDING) / mTileSize));
final int tilet = max(0, (int) FloatMath.floor((t - INVALIDATE_PADDING) / mTileSize));
final int tiler = min(mTilesX - 1, (int) FloatMath.floor((r + INVALIDATE_PADDING) / mTileSize));
final int tileb = min(mTilesY - 1, (int) FloatMath.floor((b + INVALIDATE_PADDING) / mTileSize));
for (int tiley = tilet; tiley <= tileb; tiley++) {
for (int tilex = tilel; tilex <= tiler; tilex++) {
final Tile tile = mTiles[tiley * mTilesX + tilex];
getDrawingCanvas(tile).drawRect(l, t, r, b, paint);
tile.dirty = true;
}
}
}
public void drawCircle(float x, float y, float r, Paint paint) {
final float invalR = r + INVALIDATE_PADDING;
final int tilel = max(0, (int) FloatMath.floor((x - invalR) / mTileSize));
final int tilet = max(0, (int) FloatMath.floor((y - invalR) / mTileSize));
final int tiler = min(mTilesX - 1, (int) FloatMath.floor((x + invalR) / mTileSize));
final int tileb = min(mTilesY - 1, (int) FloatMath.floor((y + invalR) / mTileSize));
for (int tiley = tilet; tiley <= tileb; tiley++) {
for (int tilex = tilel; tilex <= tiler; tilex++) {
final Tile tile = mTiles[tiley * mTilesX + tilex];
getDrawingCanvas(tile).drawCircle(x, y, r, paint);
tile.dirty = true;
}
}
}
@Override
public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) {
final int tilel = max(0, (int) FloatMath.floor((dst.left - INVALIDATE_PADDING) / mTileSize));
final int tilet = max(0, (int) FloatMath.floor((dst.top - INVALIDATE_PADDING) / mTileSize));
final int tiler =
min(mTilesX - 1, (int) FloatMath.floor((dst.right + INVALIDATE_PADDING) / mTileSize));
final int tileb =
min(mTilesY - 1, (int) FloatMath.floor((dst.bottom + INVALIDATE_PADDING) / mTileSize));
for (int tiley = tilet; tiley <= tileb; tiley++) {
for (int tilex = tilel; tilex <= tiler; tilex++) {
final Tile tile = mTiles[tiley * mTilesX + tilex];
getDrawingCanvas(tile).drawBitmap(bitmap, src, dst, paint);
tile.dirty = true;
}
}
}
@Override
public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) {
RectF dst = new RectF(0, 0, bitmap.getWidth(), bitmap.getHeight());
matrix.mapRect(dst);
final int tilel = max(0, (int) FloatMath.floor((dst.left - INVALIDATE_PADDING) / mTileSize));
final int tilet = max(0, (int) FloatMath.floor((dst.top - INVALIDATE_PADDING) / mTileSize));
final int tiler =
min(mTilesX - 1, (int) FloatMath.floor((dst.right + INVALIDATE_PADDING) / mTileSize));
final int tileb =
min(mTilesY - 1, (int) FloatMath.floor((dst.bottom + INVALIDATE_PADDING) / mTileSize));
for (int tiley = tilet; tiley <= tileb; tiley++) {
for (int tilex = tilel; tilex <= tiler; tilex++) {
final Tile tile = mTiles[tiley * mTilesX + tilex];
getDrawingCanvas(tile).drawBitmap(bitmap, matrix, paint);
tile.dirty = true;
}
}
}
public void step(int delta) {
final int oldTop = mVersionInUse ? mNewVersion : mNewVersion - 1;
int newTop = oldTop + delta; // step
if (newTop < mBottomVersion) {
if (newTop == mBottomVersion) return; // we're already at the end
newTop = mBottomVersion;
}
if (mDebug) {
Log.v(
TAG,
String.format(
"step(%d): oldTop=%d newTop=%d bot=%d", delta, oldTop, newTop, mBottomVersion));
}
for (int i = 0; i < mTiles.length; i++) {
final Tile tile = mTiles[i];
if (tile.bottom == newTop) {
// XXX: bottomed out; do something
}
tile.revert(newTop);
tile.dirty = true; // XXX: only do this if the version changed, i.e. tile.top > mVersion
}
mNewVersion = newTop + 1;
mVersionInUse = false;
}