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Unified Diff: tests/RoundRectTest.cpp

Issue 14200044: RoundRect contains (Closed) Base URL: http://skia.googlecode.com/svn/trunk/
Patch Set: Jim fixed everything Created 7 years, 8 months ago
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Index: tests/RoundRectTest.cpp
===================================================================
--- tests/RoundRectTest.cpp (revision 8834)
+++ tests/RoundRectTest.cpp (working copy)
@@ -317,6 +317,140 @@
REPORTER_ASSERT(reporter, 0.0f == p2.fY);
}
+// Move a small box from the start position by (stepX, stepY) 'numSteps' times
+// testing for containment in 'rr' at each step.
+static void test_direction(skiatest::Reporter* reporter, const SkRRect &rr,
+ SkScalar initX, int stepX, SkScalar initY, int stepY,
+ int numSteps, const bool* contains) {
+ SkScalar x = initX, y = initY;
+ for (int i = 0; i < numSteps; ++i) {
+ SkRect test = SkRect::MakeXYWH(x, y,
+ stepX ? SkIntToScalar(stepX) : SK_Scalar1,
+ stepY ? SkIntToScalar(stepY) : SK_Scalar1);
+ test.sort();
+
+ REPORTER_ASSERT(reporter, contains[i] == rr.contains(test));
+
+ x += stepX;
+ y += stepY;
+ }
+}
+
+// Exercise the RR's contains rect method
+static void test_round_rect_contains_rect(skiatest::Reporter* reporter) {
+
+ static const int kNumRRects = 4;
+ static const SkVector gRadii[kNumRRects][4] = {
+ { { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 } }, // rect
+ { { 20, 20 }, { 20, 20 }, { 20, 20 }, { 20, 20 } }, // circle
+ { { 10, 10 }, { 10, 10 }, { 10, 10 }, { 10, 10 } }, // simple
+ { { 0, 0 }, { 20, 20 }, { 10, 10 }, { 30, 30 } } // complex
+ };
+
+ SkRRect rrects[kNumRRects];
+ for (int i = 0; i < kNumRRects; ++i) {
+ rrects[i].setRectRadii(SkRect::MakeWH(40, 40), gRadii[i]);
+ }
+
+ // First test easy outs - boxes that are obviously out on
+ // each corner and edge
+ static const SkRect easyOuts[] = {
+ { -5, -5, 5, 5 }, // NW
+ { 15, -5, 20, 5 }, // N
+ { 35, -5, 45, 5 }, // NE
+ { 35, 15, 45, 20 }, // E
+ { 35, 45, 35, 45 }, // SE
+ { 15, 35, 20, 45 }, // S
+ { -5, 35, 5, 45 }, // SW
+ { -5, 15, 5, 20 } // W
+ };
+
+ for (int i = 0; i < kNumRRects; ++i) {
+ for (size_t j = 0; j < SK_ARRAY_COUNT(easyOuts); ++j) {
+ REPORTER_ASSERT(reporter, !rrects[i].contains(easyOuts[j]));
+ }
+ }
+
+ // Now test non-trivial containment. For each compass
+ // point walk a 1x1 rect in from the edge of the bounding
+ // rect
+ static const int kNumSteps = 15;
+ bool answers[kNumRRects][8][kNumSteps] = {
+ // all the test rects are inside the degenerate rrect
+ {
+ // rect
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ },
+ // for the circle we expect 6 blocks to be out on the
+ // corners (then the rest in) and only the first block
+ // out on the vertical and horizontal axes (then
+ // the rest in)
+ {
+ // circle
+ { 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ },
+ // for the simple round rect we expect 3 out on
+ // the corners (then the rest in) and no blocks out
+ // on the vertical and horizontal axes
+ {
+ // simple RR
+ { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ },
+ // for the complex case the answer is different for each direction
+ {
+ // complex RR
+ // all in for NW (rect) corner (same as rect case)
+ { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ // only first block out for N (same as circle case)
+ { 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ // first 6 blocks out for NE (same as circle case)
+ { 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ // only first block out for E (same as circle case)
+ { 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ // first 3 blocks out for SE (same as simple case)
+ { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ // first two blocks out for S
+ { 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ // first 9 blocks out for SW
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1 },
+ // first two blocks out for W (same as S)
+ { 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 },
+ }
+ };
+
+ for (int i = 0; i < kNumRRects; ++i) {
+ test_direction(reporter, rrects[i], 0, 1, 0, 1, kNumSteps, answers[i][0]); // NW
+ test_direction(reporter, rrects[i], 19.5f, 0, 0, 1, kNumSteps, answers[i][1]); // N
+ test_direction(reporter, rrects[i], 40, -1, 0, 1, kNumSteps, answers[i][2]); // NE
+ test_direction(reporter, rrects[i], 40, -1, 19.5f, 0, kNumSteps, answers[i][3]); // E
+ test_direction(reporter, rrects[i], 40, -1, 40, -1, kNumSteps, answers[i][4]); // SE
+ test_direction(reporter, rrects[i], 19.5f, 0, 40, -1, kNumSteps, answers[i][5]); // S
+ test_direction(reporter, rrects[i], 0, 1, 40, -1, kNumSteps, answers[i][6]); // SW
+ test_direction(reporter, rrects[i], 0, 1, 19.5f, 0, kNumSteps, answers[i][7]); // W
+ }
+}
+
static void TestRoundRect(skiatest::Reporter* reporter) {
test_round_rect_basic(reporter);
test_round_rect_rects(reporter);
@@ -324,6 +458,7 @@
test_round_rect_general(reporter);
test_round_rect_iffy_parameters(reporter);
test_inset(reporter);
+ test_round_rect_contains_rect(reporter);
}
#include "TestClassDef.h"
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