Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(176)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: gm/smallpaths.cpp

Issue 1456823003: Add small paths GM (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 5 years, 1 month ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « no previous file | no next file » | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: gm/smallpaths.cpp
diff --git a/gm/smallpaths.cpp b/gm/smallpaths.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..2cbef3c09eef5e407fbbbc9a1616b2682d40d2a8
--- /dev/null
+++ b/gm/smallpaths.cpp
@@ -0,0 +1,263 @@
+/*
robertphillips 2015/11/18 21:06:51 date ?
jvanverth1 2015/11/18 21:15:51 Done.
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "gm.h"
+#include "SkPath.h"
+
+typedef SkScalar (*MakePathProc)(SkPath*);
+
+static SkScalar make_triangle(SkPath* path) {
+ static const int gCoord[] = {
+ 10, 20, 15, 5, 30, 30
+ };
+ path->moveTo(SkIntToScalar(gCoord[0]), SkIntToScalar(gCoord[1]));
+ path->lineTo(SkIntToScalar(gCoord[2]), SkIntToScalar(gCoord[3]));
+ path->lineTo(SkIntToScalar(gCoord[4]), SkIntToScalar(gCoord[5]));
+ path->close();
+ path->offset(SkIntToScalar(10), SkIntToScalar(0));
+ return SkIntToScalar(30);
+}
+
+static SkScalar make_rect(SkPath* path) {
+ SkRect r = { SkIntToScalar(10), SkIntToScalar(10),
+ SkIntToScalar(30), SkIntToScalar(30) };
+ path->addRect(r);
+ path->offset(SkIntToScalar(10), SkIntToScalar(0));
+ return SkIntToScalar(30);
+}
+
+static SkScalar make_oval(SkPath* path) {
+ SkRect r = { SkIntToScalar(10), SkIntToScalar(10),
+ SkIntToScalar(30), SkIntToScalar(30) };
+ path->addOval(r);
+ path->offset(SkIntToScalar(10), SkIntToScalar(0));
+ return SkIntToScalar(30);
+}
+
+static SkScalar make_star(SkPath* path, int n) {
+ const SkScalar c = SkIntToScalar(45);
+ const SkScalar r = SkIntToScalar(20);
+
+ SkScalar rad = -SK_ScalarPI / 2;
+ const SkScalar drad = (n >> 1) * SK_ScalarPI * 2 / n;
+
+ path->moveTo(c, c - r);
+ for (int i = 1; i < n; i++) {
+ rad += drad;
+ SkScalar cosV, sinV = SkScalarSinCos(rad, &cosV);
+ path->lineTo(c + SkScalarMul(cosV, r), c + SkScalarMul(sinV, r));
+ }
+ path->close();
+ return r * 2 * 6 / 5;
+}
+
+static SkScalar make_star_5(SkPath* path) { return make_star(path, 5); }
+static SkScalar make_star_13(SkPath* path) { return make_star(path, 13); }
+
+static SkScalar make_three_line(SkPath* path) {
+ static SkScalar xOffset = 34.f;
+ static SkScalar yOffset = 50.f;
+ path->moveTo(-32.5f + xOffset, 0.0f + yOffset);
+ path->lineTo(32.5f + xOffset, 0.0f + yOffset);
+
+ path->moveTo(-32.5f + xOffset, 19 + yOffset);
+ path->lineTo(32.5f + xOffset, 19 + yOffset);
+
+ path->moveTo(-32.5f + xOffset, -19 + yOffset);
+ path->lineTo(32.5f + xOffset, -19 + yOffset);
+ path->lineTo(-32.5f + xOffset, -19 + yOffset);
+
+ path->close();
+
+ return SkIntToScalar(70);
+}
+
+static SkScalar make_arrow(SkPath* path) {
+ static SkScalar xOffset = 34.f;
+ static SkScalar yOffset = 40.f;
+ path->moveTo(-26.f + xOffset, 0.0f + yOffset);
+ path->lineTo(26.f + xOffset, 0.0f + yOffset);
+
+ path->moveTo(-28.f + xOffset, -2.4748745f + yOffset);
+ path->lineTo(0 + xOffset, 25.525126f + yOffset);
+
+ path->moveTo(-28.f + xOffset, 2.4748745f + yOffset);
+ path->lineTo(0 + xOffset, -25.525126f + yOffset);
+ path->lineTo(-28.f + xOffset, 2.4748745f + yOffset);
+
+ path->close();
+
+ return SkIntToScalar(70);
+}
+
+static SkScalar make_curve(SkPath* path) {
+ static SkScalar xOffset = -382.f;
+ static SkScalar yOffset = -50.f;
+ path->moveTo(491 + xOffset, 56 + yOffset);
+ path->conicTo(435.93292f + xOffset, 56.000031f + yOffset,
+ 382.61078f + xOffset, 69.752716f + yOffset,
+ 0.9920463f);
+
+ return SkIntToScalar(40);
+}
+
+static SkScalar make_battery(SkPath* path) {
+ static SkScalar xOffset = 5.f;
robertphillips 2015/11/18 21:06:51 kill this ?
jvanverth1 2015/11/18 21:15:51 Done.
+// static SkScalar yOffset = -0.f;
+
+ path->moveTo(24.67 + xOffset, 0.33000004);
+ path->lineTo(8.3299999 + xOffset, 0.33000004);
+ path->lineTo(8.3299999 + xOffset, 5.3299999);
+ path->lineTo(0.33000004 + xOffset, 5.3299999);
+ path->lineTo(0.33000004 + xOffset, 50.669998);
+ path->lineTo(32.669998 + xOffset, 50.669998);
+ path->lineTo(32.669998 + xOffset, 5.3299999);
+ path->lineTo(24.67 + xOffset, 5.3299999);
+ path->lineTo(24.67 + xOffset, 0.33000004);
+ path->close();
+
+ path->moveTo(25.727224 + xOffset, 12.886665);
+ path->lineTo(10.907918 + xOffset, 12.886665);
+ path->lineTo(7.5166659 + xOffset, 28.683645);
+ path->lineTo(14.810181 + xOffset, 28.683645);
+ path->lineTo(7.7024879 + xOffset, 46.135998);
+ path->lineTo(28.049999 + xOffset, 25.136419);
+ path->lineTo(16.854223 + xOffset, 25.136419);
+ path->lineTo(25.727224 + xOffset, 12.886665);
+ path->close();
+ return SkIntToScalar(70);
+}
+
robertphillips 2015/11/18 21:06:51 make_charging_icon ?
jvanverth1 2015/11/18 21:15:51 Done.
+static SkScalar make_whatever(SkPath* path) {
+ static SkScalar xOffset = 5.f;
+
+ path->moveTo(32.669998 + xOffset, 9.8640003);
+ path->lineTo(0.33000004 + xOffset, 9.8640003);
+ path->lineTo(0.33000004 + xOffset, 50.669998);
+ path->lineTo(32.669998 + xOffset, 50.669998);
+ path->lineTo(32.669998 + xOffset, 9.8640003);
+ path->close();
+
+ path->moveTo(10.907918 + xOffset, 12.886665);
+ path->lineTo(25.727224 + xOffset, 12.886665);
+ path->lineTo(16.854223 + xOffset, 25.136419);
+ path->lineTo(28.049999 + xOffset, 25.136419);
+ path->lineTo(7.7024879 + xOffset, 46.135998);
+ path->lineTo(14.810181 + xOffset, 28.683645);
+ path->lineTo(7.5166659 + xOffset, 28.683645);
+ path->lineTo(10.907918 + xOffset, 12.886665);
+ path->close();
+
+ return SkIntToScalar(70);
+}
+
+static const MakePathProc gProcs[] = {
+ make_triangle,
+ make_rect,
+ make_oval,
+ make_star_5,
+ make_star_13,
+ make_three_line,
+ make_arrow,
+ make_curve,
+ make_battery,
+ make_whatever
+};
+
+static const SkScalar gWidths[] = {
+ 2.0f,
+ 3.0f,
+ 4.0f,
+ 5.0f,
+ 6.0f,
+ 7.0f,
+ 7.0f,
+ 14.0f,
+ 0.0f,
+ 0.0f,
+};
+
+static const SkScalar gMiters[] = {
+ 2.0f,
+ 3.0f,
+ 3.0f,
+ 3.0f,
+ 4.0f,
+ 4.0f,
+ 4.0f,
+ 4.0f,
+ 4.0f,
+ 4.0f,
+};
+
+#define N SK_ARRAY_COUNT(gProcs)
+
robertphillips 2015/11/18 21:06:51 // This GM tests out drawing small paths (i.e., fo
jvanverth1 2015/11/18 21:15:51 Done.
+class SmallPathsGM : public skiagm::GM {
+ SkPath fPath[N];
+ SkScalar fDY[N];
+protected:
+ void onOnceBeforeDraw() override {
+ for (size_t i = 0; i < N; i++) {
+ fDY[i] = gProcs[i](&fPath[i]);
+ }
+ }
+
+ SkString onShortName() override {
+ return SkString("smallpaths");
+ }
+
+ SkISize onISize() override {
+ return SkISize::Make(640, 480);
+ }
+
+ void onDraw(SkCanvas* canvas) override {
+ SkPaint paint;
+ paint.setAntiAlias(true);
+
robertphillips 2015/11/18 21:06:51 // First column is just filled ?
jvanverth1 2015/11/18 21:15:51 Done.
+ canvas->save();
+ for (size_t i = 0; i < N; i++) {
+ canvas->drawPath(fPath[i], paint);
+ canvas->translate(SkIntToScalar(0), fDY[i]);
+ }
+
+ canvas->restore();
+ canvas->translate(SkIntToScalar(120), SkIntToScalar(0));
+
robertphillips 2015/11/18 21:06:51 // Second column is stroked ?
jvanverth1 2015/11/18 21:15:51 Done.
+ // now stroke them
+ canvas->save();
+ paint.setStyle(SkPaint::kStroke_Style);
+ paint.setStrokeCap(SkPaint::kButt_Cap);
+ for (size_t i = 0; i < N; i++) {
+ paint.setStrokeWidth(gWidths[i]);
+ paint.setStrokeMiter(gMiters[i]);
+ canvas->drawPath(fPath[i], paint);
+ canvas->translate(SkIntToScalar(0), fDY[i]);
+ }
+ canvas->restore();
+
+ // now stroke and fill
+ canvas->translate(SkIntToScalar(120), SkIntToScalar(0));
+ paint.setStyle(SkPaint::kStrokeAndFill_Style);
+ paint.setStrokeCap(SkPaint::kButt_Cap);
+ for (size_t i = 0; i < N; i++) {
+ paint.setStrokeWidth(gWidths[i]);
+ paint.setStrokeMiter(gMiters[i]);
+ canvas->drawPath(fPath[i], paint);
+ canvas->translate(SkIntToScalar(0), fDY[i]);
+ }
+
+ }
+
+private:
+ typedef skiagm::GM INHERITED;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
robertphillips 2015/11/18 21:06:51 DEF_GM ?
jvanverth1 2015/11/18 21:15:51 Done.
+static skiagm::GM* MyFactory(void*) { return new SmallPathsGM; }
+static skiagm::GMRegistry reg(MyFactory);
+
« no previous file with comments | « no previous file | no next file » | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698