skia2/docs/examples/Region_Iterator_rewind.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

26 lines
1003 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=32d51e959d6cc720a74ec4822511e2cd
REG_FIDDLE(Region_Iterator_rewind, 256, 256, true, 0) {
void draw(SkCanvas* canvas) {
auto debugster = [](const char* label, SkRegion::Iterator& iter, bool addRewind) -> void {
if (addRewind) {
bool success = iter.rewind();
SkDebugf("%14s rewind success=%s\n", label, success ? "true" : "false");
}
auto r = iter.rect();
SkDebugf("%14s rect={%d,%d,%d,%d}\n", label, r.fLeft, r.fTop, r.fRight, r.fBottom);
};
SkRegion::Iterator iter;
debugster("empty iter", iter, true);
SkRegion region;
iter.reset(region);
debugster("empty region", iter, true);
region.setRect({1, 2, 3, 4});
iter.reset(region);
debugster("after set rect", iter, false);
debugster("after rewind", iter, true);
}
} // END FIDDLE