private void drawAreaColors(Canvas canvas, int row, int col) {
int colorNumber = puzzle.getAreaColor(row, col);
int color = theme.getAreaColor(colorNumber, puzzle.getNumberOfAreaColors());
canvas.clipRect(0, 0, cellWidth, cellHeight);
canvas.drawColor(color);
}
private void onDraw0(Canvas canvas) {
if (Constants.LOG_V) Log.v(TAG, "onDraw(" + canvas.getClipBounds() + ")");
canvas.save();
canvas.translate(offsetX, offsetY);
canvas.clipRect(0, 0, size * cellWidth, size * cellHeight);
Rect clipBounds = canvas.getClipBounds();
if (theme.isDrawAreaColors(puzzle.getPuzzleType())) drawAreaColors(canvas, clipBounds);
else drawBackground(canvas);
drawExtraRegions(canvas, clipBounds);
if (puzzle.isSolved()) drawCongrats(canvas);
else if (paused) drawPaused(canvas);
else {
drawHighlightedCells(canvas, clipBounds);
drawMarkedPosition(canvas);
}
if (!preview && puzzle.hasErrors()) drawErrors(canvas, clipBounds);
drawValues(canvas, clipBounds);
drawGrid(canvas);
drawRegionBorders(canvas, clipBounds);
canvas.restore();
drawOuterBorder(canvas);
}
private void drawExtraRegions(Canvas canvas, int row, int col) {
if (puzzle.isExtraRegion(row, col)) {
canvas.drawRect(
0,
0,
cellWidth,
cellHeight,
theme.getExtraRegionPaint(puzzle.getPuzzleType(), puzzle.getExtraRegionCode(row, col)));
}
}
public void setPuzzle(AndokuPuzzle puzzle) {
this.puzzle = puzzle;
size = puzzle == null ? 0 : puzzle.getSize();
multiValuesPainter.setPuzzleSize(size);
requestLayout();
invalidate();
}
private void drawValues(Canvas canvas, int row, int col) {
ValueSet values = puzzle.getValues(row, col);
if (values.isEmpty()) return;
if (preview && !puzzle.isSolved()) {
if (puzzle.isClue(row, col)) {
boolean show = previewClueCounter++ % 3 != 0;
String dv = show ? String.valueOf(theme.getSymbol(values.nextValue(0))) : "?";
canvas.drawText(dv, cellWidth / 2f, textOffset, theme.getCluePaint(preview));
}
} else if (values.size() == 1) {
String dv = String.valueOf(theme.getSymbol(values.nextValue(0)));
Paint paint = puzzle.isClue(row, col) ? theme.getCluePaint(preview) : theme.getValuePaint();
canvas.drawText(dv, cellWidth / 2f, textOffset, paint);
} else {
multiValuesPainter.paintValues(canvas, values);
}
}
private void drawRegionBorders(Canvas canvas, Rect clipBounds) {
Paint regionBorderPaint = theme.getRegionBorderPaint();
for (int row = 0; row < size; row++) {
float y = row * cellHeight;
if (y > clipBounds.bottom || y + cellHeight < clipBounds.top) continue;
for (int col = 0; col < size; col++) {
float x = col * cellWidth;
if (x > clipBounds.right || x + cellWidth < clipBounds.left) continue;
if (row > 0 && puzzle.getAreaCode(row, col) != puzzle.getAreaCode(row - 1, col)) {
canvas.drawLine(x, y, x + cellWidth, y, regionBorderPaint);
}
if (col > 0 && puzzle.getAreaCode(row, col) != puzzle.getAreaCode(row, col - 1)) {
canvas.drawLine(x, y, x, y + cellHeight, regionBorderPaint);
}
}
}
}
private void drawMarkedPosition(Canvas canvas) {
if (markedPosition == null) return;
canvas.save();
float x = markedPosition.col * cellWidth;
float y = markedPosition.row * cellHeight;
canvas.translate(x, y);
Paint paint =
puzzle.isClue(markedPosition.row, markedPosition.col)
? theme.getMarkedPositionCluePaint()
: theme.getMarkedPositionPaint();
canvas.clipRect(0, 0, cellWidth, cellHeight);
canvas.drawPaint(paint);
canvas.restore();
}
private void drawHighlightedCells(Canvas canvas, Rect clipBounds) {
if (highlightedDigit == null || theme.getHighlightDigitsPolicy() == HighlightDigitsPolicy.NEVER)
return;
for (int row = 0; row < size; row++) {
float y = row * cellHeight;
if (y > clipBounds.bottom || y + cellHeight < clipBounds.top) continue;
for (int col = 0; col < size; col++) {
float x = col * cellWidth;
if (x > clipBounds.right || x + cellWidth < clipBounds.left) continue;
final ValueSet values = puzzle.getValues(row, col);
if (values.contains(highlightedDigit)) {
drawHighlightedcell(canvas, values.size(), x, y);
}
}
}
}
private void drawErrors(Canvas canvas, Rect clipBounds) {
Paint errorPaint = theme.getErrorPaint();
float radius = Math.min(cellWidth, cellHeight) * 0.4f;
final HashSet<RegionError> regionErrors = puzzle.getRegionErrors();
final HashSet<Position> regionErrorPositions = getUniquePositions(regionErrors);
for (Position p : regionErrorPositions) {
float x = p.col * cellWidth;
if (x > clipBounds.right || x + cellWidth < clipBounds.left) continue;
float y = p.row * cellHeight;
if (y > clipBounds.bottom || y + cellHeight < clipBounds.top) continue;
float cx = x + cellWidth / 2;
float cy = y + cellHeight / 2;
canvas.drawCircle(cx, cy, radius, errorPaint);
}
for (RegionError error : regionErrors) {
float cx1 = error.p1.col * cellWidth + cellWidth / 2;
float cy1 = error.p1.row * cellHeight + cellHeight / 2;
float cx2 = error.p2.col * cellWidth + cellWidth / 2;
float cy2 = error.p2.row * cellHeight + cellHeight / 2;
if (cx1 == cx2) // vertical line
{
float vy = cy2 - cy1;
vy *= (radius / Math.abs(vy));
canvas.drawLine(cx1, cy1 + vy, cx2, cy2 - vy, errorPaint);
} else if (cy1 == cy2) // horizontal line
{
float vx = cx2 - cx1;
vx *= (radius / Math.abs(vx));
canvas.drawLine(cx1 + vx, cy1, cx2 - vx, cy2, errorPaint);
} else {
float vx = cx2 - cx1;
float vy = cy2 - cy1;
float scale = (float) (radius / Math.sqrt(vx * vx + vy * vy));
vx *= scale;
vy *= scale;
canvas.drawLine(cx1 + vx, cy1 + vy, cx2 - vx, cy2 - vy, errorPaint);
}
}
for (Position p : puzzle.getCellErrors()) {
float x = p.col * cellWidth;
if (x > clipBounds.right || x + cellWidth < clipBounds.left) continue;
float y = p.row * cellHeight;
if (y > clipBounds.bottom || y + cellHeight < clipBounds.top) continue;
float cx = x + cellWidth / 2;
float cy = y + cellHeight / 2;
float delta = radius / 1.41421356f;
canvas.drawLine(cx - delta, cy - delta, cx + delta, cy + delta, errorPaint);
canvas.drawLine(cx + delta, cy - delta, cx - delta, cy + delta, errorPaint);
}
}