skia2/docs/examples/Matrix_isSimilarity.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

32 lines
1.1 KiB
C++

#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 "tools/fiddle/examples.h"
// HASH=8b37f4ae7fec1756433c0f984175fb14
REG_FIDDLE(Matrix_isSimilarity, 256, 256, false, 0) {
void draw(SkCanvas* canvas) {
SkPaint p;
p.setAntiAlias(true);
SkMatrix m;
int below = 175;
for (SkScalar sx : { -1, 1 } ) {
for (SkScalar sy : { -1, 1 } ) {
m.setAll(sx, 1, 128, 1, sy, 32, 0, 0, 1);
bool isSimilarity = m.isSimilarity();
SkString str;
str.printf("sx: %g sy: %g sim: %s", sx, sy, isSimilarity ? "true" : "false");
{
SkAutoCanvasRestore autoRestore(canvas, true);
canvas->concat(m);
canvas->drawString(str, 0, 0, p);
}
if (!isSimilarity) {
canvas->drawString(str, 40, below, p);
below += 20;
}
}
}
}
} // END FIDDLE
#endif // Disabled until updated to use current API.