ec4d4d784d
The following are currently unused in Android, Google3, Chromium, and Mozilla: - SkEvent - SkTime::GetMSecs - SK_TIME_FACTOR (also unused in Skia) - SkAutoTime I left uses of SkMSec more-or-less intact for SkEvent, SkAnimator, and SkInterpolator. SkInterpolator is used in Chromium, so I did not want to change the API. The views/ and animator/ code is crufty, so it didn't seem worthwhile to refactor it. Instead, I added SkEvent::GetMSecsSinceStartup, which is likely to be adequate for use in SampleApp. I also left SkMSec where it is used to measure a duration rather than a timestamp. With the exception of SkMovie, which is used in Android, all of the uses appear to measure the execution time of a piece of code, which I would hope does not exceed 2^31 milliseconds. Added skiatest::Timer to support a common idiom in tests where we want to measure the wallclock time in integer milliseconds. (Not used in tests/PathOpsSkpClipTest.cpp because it redefines things in Test.h.) Removed tabs in tests/StrokerTest.cpp. BUG=skia:4632 GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1811613004 Review URL: https://codereview.chromium.org/1811613004
78 lines
1.7 KiB
C++
78 lines
1.7 KiB
C++
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/*
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* Copyright 2011 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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#ifndef SkTouchGesture_DEFINED
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#define SkTouchGesture_DEFINED
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#include "../private/SkTDArray.h"
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#include "SkMatrix.h"
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struct SkFlingState {
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SkFlingState() : fActive(false) {}
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bool isActive() const { return fActive; }
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void stop() { fActive = false; }
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void reset(float sx, float sy);
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bool evaluateMatrix(SkMatrix* matrix);
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private:
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SkPoint fDirection;
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SkScalar fSpeed0;
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double fTime0;
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bool fActive;
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};
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class SkTouchGesture {
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public:
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SkTouchGesture();
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~SkTouchGesture();
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void touchBegin(void* owner, float x, float y);
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void touchMoved(void* owner, float x, float y);
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void touchEnd(void* owner);
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void reset();
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bool isActive() { return fFlinger.isActive(); }
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void stop() { fFlinger.stop(); }
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const SkMatrix& localM();
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const SkMatrix& globalM() const { return fGlobalM; }
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private:
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enum State {
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kEmpty_State,
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kTranslate_State,
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kZoom_State,
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};
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struct Rec {
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void* fOwner;
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float fStartX, fStartY;
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float fPrevX, fPrevY;
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float fLastX, fLastY;
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float fPrevT, fLastT;
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};
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SkTDArray<Rec> fTouches;
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State fState;
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SkMatrix fLocalM, fGlobalM;
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SkFlingState fFlinger;
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double fLastUpMillis;
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SkPoint fLastUpP;
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void flushLocalM();
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int findRec(void* owner) const;
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void appendNewRec(void* owner, float x, float y);
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float computePinch(const Rec&, const Rec&);
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float limitTotalZoom(float scale) const;
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bool handleDblTap(float, float);
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};
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#endif
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