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/Point_036.cpp b/docs/examples/Point_036.cpp
new file mode 100644
index 0000000..3a95a32
--- /dev/null
+++ b/docs/examples/Point_036.cpp
@@ -0,0 +1,27 @@
+#if 0 // Disabled until updated to use current API.
+// 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=0bc7b3997357e499817278b78bdfbf1d
+REG_FIDDLE(Point_036, 256, 256, false, 0) {
+void draw(SkCanvas* canvas) {
+ SkPaint paint;
+ paint.setAntiAlias(true);
+ SkVector vectors[][2] = {{{50, 2}, {-14, 20}}, {{0, 50}, {-50, 0}}, {{-20, 25}, {25, -20}},
+ {{-20, -24}, {-24, -20}}};
+ SkPoint center[] = {{32, 32}, {160, 32}, {32, 160}, {160, 160}};
+ paint.setStrokeWidth(2);
+ for (size_t i = 0; i < 4; ++i) {
+ paint.setColor(SK_ColorRED);
+ canvas->drawLine(center[i], center[i] + vectors[i][0], paint);
+ paint.setColor(SK_ColorBLUE);
+ canvas->drawLine(center[i], center[i] + vectors[i][1], paint);
+ SkString str;
+ SkScalar cross = vectors[i][0].cross(vectors[i][1]);
+ str.printf("cross = %g", cross);
+ paint.setColor(cross >= 0 ? SK_ColorRED : SK_ColorBLUE);
+ canvas->drawString(str, center[i].fX, center[i].fY, paint);
+ }
+}
+} // END FIDDLE
+#endif // Disabled until updated to use current API.