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Unified Diff: samplecode/SampleClock.cpp

Issue 23876008: Add Clock Sample. (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: Created 7 years, 3 months ago
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Index: samplecode/SampleClock.cpp
diff --git a/samplecode/SampleClock.cpp b/samplecode/SampleClock.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..a060307d1216e0455c12239df966c3ba775820f6
--- /dev/null
+++ b/samplecode/SampleClock.cpp
@@ -0,0 +1,329 @@
+
tfarina 2013/09/10 21:59:02 rm this blank line.
+/*
+ * Copyright 2011 Google Inc.
tfarina 2013/09/10 21:59:02 2013?
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include "SampleCode.h"
+
+#include "SkCanvas.h"
+#include "SkRandom.h"
+#include "SkRRect.h"
+#include "SkTime.h"
+
+// Implementation in C++ of Mozilla Canvas2D benchmark Canvas Clock Test
+
+#define USE_PATH 1
+
+class ClockView : public SampleView {
+public:
+ ClockView() {}
+
+protected:
+ // overrides from SkEventSink
+ virtual bool onQuery(SkEvent* evt) {
+ if (SampleCode::TitleQ(*evt)) {
+ SampleCode::TitleR(evt, "Clock");
+ return true;
+ }
+ return this->INHERITED::onQuery(evt);
+ }
+
+ static void fill_pts(SkPoint pts[], size_t n, SkMWCRandom* rand) {
+ for (size_t i = 0; i < n; i++)
+ pts[i].set(rand->nextUScalar1() * 640, rand->nextUScalar1() * 480);
+ }
+
+ virtual void onDrawContent(SkCanvas* canvas) {
tfarina 2013/09/10 21:59:02 SK_OVERRIDE?
+ SkPaint paintFill;
+ SkPaint paintStroke;
+ SkPath path;
+
+ canvas->save();
+ canvas->translate(150, 150);
+ canvas->scale(0.4f, 0.4f);
+ canvas->rotate(-180.f/2.f);
+
+ paintFill.setAntiAlias(true);
+ paintFill.setColor(SK_ColorBLACK);
+ paintStroke.setAntiAlias(true);
+ paintStroke.setStyle(SkPaint::kStroke_Style);
+ paintStroke.setColor(SK_ColorBLACK);
+ paintStroke.setStrokeWidth(8);
+ paintStroke.setStrokeCap(SkPaint::kRound_Cap);
+
+ // Hour marks
+ SkRect rect;
+#ifndef USE_PATH
+ rect = SkRect::MakeLTRB(200-4, -4, 240+4, 4);
+ SkRRect rrect;
+ SkVector radii[4] = {{4,4}, {4,4}, {4,4}, {4,4}};
+ rrect.setRectRadii(rect, radii);
+#endif
+ canvas->save();
+ for (int i=0;i<12;i++){
+ canvas->rotate(180.f/6.f);
+#ifdef USE_PATH
+ path.reset();
+ path.moveTo(200,0);
+ path.lineTo(240,0);
+ canvas->drawPath(path, paintStroke);
+#else
+ canvas->drawRRect(rrect, paintFill);
+#endif
+ }
+ canvas->restore();
+
+ // Minute marks
+ canvas->save();
+#ifdef USE_PATH
+ paintStroke.setStrokeWidth(5);
+#else
+ rect = SkRect::MakeLTRB(231.5f, -2.5f, 242.5, 2.5f);
+ radii[0] = SkPoint::Make(2.5f,2.5f);
+ radii[1] = SkPoint::Make(2.5f,2.5f);
+ radii[2] = SkPoint::Make(2.5f,2.5f);
+ radii[3] = SkPoint::Make(2.5f,2.5f);
+ rrect.setRectRadii(rect, radii);
+#endif
+ for (int i=0;i<60;i++){
+ if (i%5 == 0) {
+ canvas->rotate(180.f/30.f);
+ continue;
+ }
+#ifdef USE_PATH
+ path.reset();
+ path.moveTo(234,0);
+ path.lineTo(240,0);
+ canvas->drawPath(path, paintStroke);
+#else
+ canvas->drawRRect(rrect, paintFill);
+#endif
+ canvas->rotate(180.f/30.f);
+ }
+ canvas->restore();
+
+ SkTime::DateTime time;
+ SkTime::GetDateTime(&time);
+ time.fHour = time.fHour >= 12 ? time.fHour-12 : time.fHour;
+ paintFill.setColor(SK_ColorBLACK);
+
+ // Write hours
+ canvas->save();
+ canvas->rotate(time.fHour*(180.f/6.f) + time.fMinute*(180.f/360.f)
+ + time.fSecond*(180.f/21600.f) );
+#ifdef USE_PATH
+ paintStroke.setStrokeWidth(14);
+ path.reset();
+ path.moveTo(-20,0);
+ path.lineTo(80,0);
+ canvas->drawPath(path, paintStroke);
+#else
+ rect = SkRect::MakeLTRB(-20-7, -7, 80+7, 7);
+ radii[0] = SkPoint::Make(7,7);
+ radii[1] = SkPoint::Make(7,7);
+ radii[2] = SkPoint::Make(7,7);
+ radii[3] = SkPoint::Make(7,7);
+ rrect.setRectRadii(rect, radii);
+ canvas->drawRRect(rrect, paintFill);
+#endif
+ canvas->restore();
+
+ // Write minutes
+ canvas->save();
+ canvas->rotate(time.fMinute*(180.f/30.f)
+ + time.fSecond*(180.f/1800.f) );
+#ifdef USE_PATH
+ paintStroke.setStrokeWidth(10);
+ path.reset();
+ path.moveTo(-56,0);
+ path.lineTo(224,0);
+ canvas->drawPath(path, paintStroke);
+#else
+ rect = SkRect::MakeLTRB(-56-5, -5, 224+5, 5);
+ radii[0] = SkPoint::Make(5,5);
+ radii[1] = SkPoint::Make(5,5);
+ radii[2] = SkPoint::Make(5,5);
+ radii[3] = SkPoint::Make(5,5);
+ rrect.setRectRadii(rect, radii);
+ canvas->drawRRect(rrect, paintFill);
+#endif
+ canvas->restore();
+
+ // Write seconds
+ canvas->save();
+ canvas->rotate(time.fSecond*(180.f/30.f));
+ paintFill.setColor(0xffd40000);
+ paintStroke.setColor(0xffd40000);
+ paintStroke.setStrokeWidth(6);
+#ifdef USE_PATH
+ path.reset();
+ path.moveTo(-60,0);
+ path.lineTo(166,0);
+ canvas->drawPath(path, paintStroke);
+#else
+ rect = SkRect::MakeLTRB(-60-3, -3, 166+3, 3);
+ radii[0] = SkPoint::Make(3,3);
+ radii[1] = SkPoint::Make(3,3);
+ radii[2] = SkPoint::Make(3,3);
+ radii[3] = SkPoint::Make(3,3);
+ rrect.setRectRadii(rect, radii);
+ canvas->drawRRect(rrect, paintFill);
+#endif
+ rect = SkRect::MakeLTRB(-20, -20, 20, 20);
+#ifdef USE_PATH
+ path.reset();
+ path.arcTo(rect, 0, 0, false);
+ path.addOval(rect, SkPath::kCCW_Direction);
+ path.arcTo(rect, 360, 0, true);
+ canvas->drawPath(path, paintFill);
+#else
+ canvas->drawOval(rect, paintFill);
+#endif
+ rect = SkRect::MakeLTRB(-20+190, -20, 20+190, 20);
+#ifdef USE_PATH
+ path.reset();
+ path.arcTo(rect, 0, 0, false);
+ path.addOval(rect, SkPath::kCCW_Direction);
+ path.arcTo(rect, 360, 0, true);
+ canvas->drawPath(path, paintStroke);
+#else
+ canvas->drawOval(rect, paintStroke);
+#endif
+ paintFill.setColor(0xff505050);
+#ifdef USE_PATH
+ rect = SkRect::MakeLTRB(-6, -6, 6, 6);
+ path.arcTo(rect, 0, 0, false);
+ path.addOval(rect, SkPath::kCCW_Direction);
+ path.arcTo(rect, 360, 0, true);
+ canvas->drawPath(path, paintFill);
+#else
+ canvas->drawOval(rect, paintFill);
+ rect = SkRect::MakeLTRB(-6, -6, 6, 6);
+ canvas->drawOval(rect, paintFill);
+#endif
+ canvas->restore();
+
+ paintStroke.setStrokeWidth(18);
+ paintStroke.setColor(0xff325FA2);
+ rect = SkRect::MakeLTRB(-284, -284, 284, 284);
+#ifdef USE_PATH
+ path.reset();
+ path.arcTo(rect, 0, 0, false);
+ path.addOval(rect, SkPath::kCCW_Direction);
+ path.arcTo(rect, 360, 0, true);
+ canvas->drawPath(path, paintStroke);
+#else
+ canvas->drawOval(rect, paintStroke);
+#endif
+
+ canvas->restore();
+
+ this->inval(NULL);
+ }
+
+private:
+
+ typedef SampleView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new ClockView; }
+static SkViewRegister reg(MyFactory);
+
+//////////////////////////////////////////////////////////////////////////////
+
+// Original canvas source, for reference
+//
+//ctx.save();
+//ctx.clearRect(0,0,300,300);
+//ctx.translate(150,150);
+//ctx.scale(0.4,0.4);
+//ctx.rotate(-Math.PI/2);
+//ctx.strokeStyle = "black";
+//ctx.fillStyle = "white";
+//ctx.lineWidth = 8;
+//ctx.lineCap = "round";
+//
+//// Hour marks
+//ctx.save();
+//for (var i=0;i<12;i++){
+// ctx.beginPath();
+// ctx.rotate(Math.PI/6);
+// ctx.moveTo(200,0);
+// ctx.lineTo(240,0);
+// ctx.stroke();
+//}
+//ctx.restore();
+//
+//// Minute marks
+//ctx.save();
+//ctx.lineWidth = 5;
+//for (i=0;i<60;i++){
+// if (i%5!=0) {
+// ctx.beginPath();
+// ctx.moveTo(234,0);
+// ctx.lineTo(240,0);
+// ctx.stroke();
+// }
+// ctx.rotate(Math.PI/30);
+//}
+//ctx.restore();
+//
+//var sec = now.getSeconds() + (now.getMilliseconds()/1000.0);
+//var min = now.getMinutes();
+//var hr = now.getHours();
+//hr = hr>=12 ? hr-12 : hr;
+//
+//ctx.fillStyle = "black";
+//
+//// write Hours
+//ctx.save();
+//ctx.rotate( hr*(Math.PI/6) + (Math.PI/360)*min + (Math.PI/21600)*sec )
+//ctx.lineWidth = 14;
+//ctx.beginPath();
+//ctx.moveTo(-20,0);
+//ctx.lineTo(80,0);
+//ctx.stroke();
+//ctx.restore();
+//
+//// write Minutes
+//ctx.save();
+//ctx.rotate( (Math.PI/30)*min + (Math.PI/1800)*sec )
+//ctx.lineWidth = 10;
+//ctx.beginPath();
+//ctx.moveTo(-56,0);
+//ctx.lineTo(224,0);
+//ctx.stroke();
+//ctx.restore();
+//
+//// Write seconds
+//ctx.save();
+//ctx.rotate(sec * Math.PI/30);
+//ctx.strokeStyle = "#D40000";
+//ctx.fillStyle = "#D40000";
+//ctx.lineWidth = 6;
+//ctx.beginPath();
+//ctx.moveTo(-60,0);
+//ctx.lineTo(166,0);
+//ctx.stroke();
+//ctx.beginPath();
+//ctx.arc(0,0,20,0,Math.PI*2,true);
+//ctx.fill();
+//ctx.beginPath();
+//ctx.arc(190,0,20,0,Math.PI*2,true);
+//ctx.stroke();
+//ctx.fillStyle = "#555";
+//ctx.arc(0,0,6,0,Math.PI*2,true);
+//ctx.fill();
+//ctx.restore();
+//
+//ctx.beginPath();
+//ctx.lineWidth = 18;
+//ctx.strokeStyle = '#325FA2';
+//ctx.arc(0,0,284,0,Math.PI*2,true);
+//ctx.stroke();
+//
+//ctx.restore();
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