зеркало из https://github.com/mozilla/moz-skia.git
60 строки
1.4 KiB
C++
60 строки
1.4 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Test.h"
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#include "SkRecord.h"
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#include "SkRecords.h"
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// Sums the area of any DrawRect command it sees.
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class AreaSummer {
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public:
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AreaSummer() : fArea(0) {}
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template <typename T> void operator()(const T&) { }
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int area() const { return fArea; }
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private:
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int fArea;
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};
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template <> void AreaSummer::operator()(const SkRecords::DrawRect& record) {
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fArea += (int) (record.rect.width() * record.rect.height());
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}
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// Scales out the bottom-right corner of any DrawRect command it sees by 2x.
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struct Stretch {
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template <typename T> void operator()(T*) {}
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};
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template <> void Stretch::operator()(SkRecords::DrawRect* record) {
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record->rect.fRight *= 2;
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record->rect.fBottom *= 2;
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}
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// Basic tests for the low-level SkRecord code.
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DEF_TEST(Record, r) {
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SkRecord record;
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// Add a simple DrawRect command.
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SkRect rect = SkRect::MakeWH(10, 10);
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SkPaint paint;
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SkNEW_PLACEMENT_ARGS(record.append<SkRecords::DrawRect>(), SkRecords::DrawRect, (rect, paint));
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// Its area should be 100.
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AreaSummer summer;
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record.visit(summer);
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REPORTER_ASSERT(r, summer.area() == 100);
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// Scale 2x.
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Stretch stretch;
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record.mutate(stretch);
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// Now its area should be 100 + 400.
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record.visit(summer);
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REPORTER_ASSERT(r, summer.area() == 500);
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}
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