Compile all fiddle examples locally
Motivation: it would be a good idea if the API documentation examples
were checked into the skia repository, so we could make sure they
compile as part of the commit queue.
Fiddle would make/update a named fiddle each time it gets a new
commit of Skia, extracted from the code in the examples/ directory.
The docs would point at those named fiddles. Named fiddles have urls
in the form:
https://fiddle.skia.org/c/@Bitmap_000
Then we would stick a link to the example into the header documentation
like this:
/** Allocates the pixel memory for the bitmap, given its dimensions
and SkColorType. Returns true on success, where success means
either setPixels() or setPixelRef() was called.
@param bitmap SkBitmap containing SkImageInfo as input, and
SkPixelRef as output
@return true if SkPixelRef was allocated
@example https://fiddle.skia.org/c/@Bitmap_000
*/
bool allocPixelRef(SkBitmap* bitmap) override;
There are still around 200 disabled examples that need to be fixed
(these result from API changes since the author left).
Change-Id: I14a31348a9ccaaa31f65424b91e3a3533d2583a7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/198824
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
diff --git a/docs/examples/Canvas_103.cpp b/docs/examples/Canvas_103.cpp
new file mode 100644
index 0000000..79ab1a9
--- /dev/null
+++ b/docs/examples/Canvas_103.cpp
@@ -0,0 +1,37 @@
+// 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 "fiddle/examples.h"
+// HASH=c5bfa944e17ba4a4400dc799f032069c
+REG_FIDDLE(Canvas_103, 256, 128, false, 0) {
+void draw(SkCanvas* canvas) {
+ SkIRect center = { 20, 10, 50, 40 };
+ SkBitmap bitmap;
+ bitmap.allocPixels(SkImageInfo::MakeN32Premul(60, 60));
+ SkCanvas bitCanvas(bitmap);
+ SkPaint paint;
+ SkColor gray = 0xFF000000;
+ int left = 0;
+ for (auto right: { center.fLeft, center.fRight, bitmap.width() } ) {
+ int top = 0;
+ for (auto bottom: { center.fTop, center.fBottom, bitmap.height() } ) {
+ paint.setColor(gray);
+ bitCanvas.drawIRect(SkIRect::MakeLTRB(left, top, right, bottom), paint);
+ gray += 0x001f1f1f;
+ top = bottom;
+ }
+ left = right;
+ }
+ const int xDivs[] = { center.fLeft, center.fRight };
+ const int yDivs[] = { center.fTop, center.fBottom };
+ SkCanvas::Lattice::RectType fillTypes[3][3];
+ memset(fillTypes, 0, sizeof(fillTypes));
+ fillTypes[1][1] = SkCanvas::Lattice::kTransparent;
+ SkColor dummy[9]; // temporary pending bug fix
+ SkCanvas::Lattice lattice = { xDivs, yDivs, fillTypes[0], SK_ARRAY_COUNT(xDivs),
+ SK_ARRAY_COUNT(yDivs), nullptr, dummy };
+ for (auto dest: { 20, 30, 40, 60, 90 } ) {
+ canvas->drawBitmapLattice(bitmap, lattice, SkRect::MakeWH(dest, 110 - dest), nullptr);
+ canvas->translate(dest + 4, 0);
+ }
+}
+} // END FIDDLE