skia2/docs/examples/Canvas_drawImageRect_4.cpp
Mike Klein c0bd9f9fe5 rewrite includes to not need so much -Ifoo
Current strategy: everything from the top

Things to look at first are the manual changes:

   - added tools/rewrite_includes.py
   - removed -Idirectives from BUILD.gn
   - various compile.sh simplifications
   - tweak tools/embed_resources.py
   - update gn/find_headers.py to write paths from the top
   - update gn/gn_to_bp.py SkUserConfig.h layout
     so that #include "include/config/SkUserConfig.h" always
     gets the header we want.

No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
2019-04-24 16:27:11 +00:00

22 lines
880 B
C++

// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
// HASH=d4b35a9d24c32c042bd1f529b8de3c0d
REG_FIDDLE(Canvas_drawImageRect_4, 256, 64, false, 0) {
void draw(SkCanvas* canvas) {
uint32_t pixels[][2] = { { SK_ColorBLACK, SK_ColorWHITE },
{ SK_ColorWHITE, SK_ColorBLACK } };
SkBitmap bitmap;
bitmap.installPixels(SkImageInfo::MakeN32Premul(2, 2),
(void*) pixels, sizeof(pixels[0]));
sk_sp<SkImage> image = SkImage::MakeFromBitmap(bitmap);
SkPaint paint;
canvas->scale(4, 4);
for (auto alpha : { 50, 100, 150, 255 } ) {
paint.setAlpha(alpha);
canvas->drawImageRect(image, SkRect::MakeWH(2, 2), SkRect::MakeWH(8, 8), &paint);
canvas->translate(8, 0);
}
}
} // END FIDDLE