void SkPDFCanvas::onDrawBitmapRect(const SkBitmap& bitmap,
const SkRect* srcPtr,
const SkRect& dst,
const SkPaint* paint,
SkCanvas::SrcRectConstraint constraint) {
SkRect bounds = SkRect::Make(bitmap.bounds());
SkRect src = srcPtr ? *srcPtr : bounds;
SkAutoCanvasRestore autoCanvasRestore(this, true);
if (src != bounds) {
this->clipRect(dst);
}
this->concat(SkMatrix::MakeRectToRect(src, dst,
SkMatrix::kFill_ScaleToFit));
this->drawBitmap(bitmap, 0, 0, paint);
}
static void checkerboard(
SkCanvas* canvas, int w, int h, int size, SkColor c1, SkColor c2) {
SkAutoCanvasRestore autoCanvasRestore(canvas, true);
canvas->clipRect(SkRect::MakeWH(SkIntToScalar(w), SkIntToScalar(h)));
canvas->drawColor(c1);
SkPaint paint;
paint.setColor(c2);
SkScalar s = SkIntToScalar(size);
for (int y = 0; y < h; y += size) {
SkScalar ty = SkIntToScalar(y);
bool oddRow = (y % (2 * size)) != 0;
for (int x = oddRow ? size : 0; x < w; x += (2 * size)) {
SkScalar tx = SkIntToScalar(x);
canvas->drawRect(SkRect::MakeXYWH(tx, ty, s, s), paint);
}
}
}
static void color_wheel_native(SkCanvas* canvas) {
SkAutoCanvasRestore autoCanvasRestore(canvas, true);
canvas->translate(0.5f * SCALE, 0.5f * SCALE);
SkPaint p;
p.setAntiAlias(false);
p.setColor(SK_ColorWHITE);
canvas->drawCircle(0.0f, 0.0f, SCALE * 0.5f, p);
const double sqrt_3_over_2 = 0.8660254037844387;
const SkScalar Z = 0.0f;
const SkScalar D = 0.3f * SkIntToScalar(SCALE);
const SkScalar X = SkDoubleToScalar(D * sqrt_3_over_2);
const SkScalar Y = D * SK_ScalarHalf;
sk_tool_utils::set_portable_typeface(&p, nullptr, SkTypeface::kBold);
p.setTextSize(0.28125f * SCALE);
draw_center_letter('K', &p, SK_ColorBLACK, Z, Z, canvas);
draw_center_letter('R', &p, SK_ColorRED, Z, D, canvas);
draw_center_letter('G', &p, SK_ColorGREEN, -X, -Y, canvas);
draw_center_letter('B', &p, SK_ColorBLUE, X, -Y, canvas);
draw_center_letter('C', &p, SK_ColorCYAN, Z, -D, canvas);
draw_center_letter('M', &p, SK_ColorMAGENTA, X, Y, canvas);
draw_center_letter('Y', &p, SK_ColorYELLOW, -X, Y, canvas);
}
static void draw_rotated_image(SkCanvas* canvas, const SkImage* image) {
sk_tool_utils::draw_checkerboard(canvas, SkColorSetRGB(156, 154, 156),
SK_ColorWHITE, 12);
if (!image) {
return;
}
SkRect rect = SkRect::MakeLTRB(-68.0f, -68.0f, 68.0f, 68.0f);
SkPaint paint;
paint.setColor(SkColorSetRGB(49, 48, 49));
SkScalar scale = SkTMin(128.0f / image->width(),
128.0f / image->height());
SkScalar point[2] = {-0.5f * image->width(), -0.5f * image->height()};
for (int j = 0; j < 4; ++j) {
for (int i = 0; i < 4; ++i) {
SkAutoCanvasRestore autoCanvasRestore(canvas, true);
canvas->translate(96.0f + 192.0f * i, 96.0f + 192.0f * j);
canvas->rotate(18.0f * (i + 4 * j));
canvas->drawRect(rect, paint);
canvas->scale(scale, scale);
canvas->drawImage(image, point[0], point[1]);
}
}
}
