gfx/skia/trunk/include/views/SkTouchGesture.h@129ffea94266 (annotated)
gfx/skia/trunk/include/views/SkTouchGesture.h
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
| michael@0 | 1 | |
| michael@0 | 2 | /* |
| michael@0 | 3 | * Copyright 2011 Google Inc. |
| michael@0 | 4 | * |
| michael@0 | 5 | * Use of this source code is governed by a BSD-style license that can be |
| michael@0 | 6 | * found in the LICENSE file. |
| michael@0 | 7 | */ |
| michael@0 | 8 | #ifndef SkTouchGesture_DEFINED |
| michael@0 | 9 | #define SkTouchGesture_DEFINED |
| michael@0 | 10 | |
| michael@0 | 11 | #include "SkTDArray.h" |
| michael@0 | 12 | #include "SkMatrix.h" |
| michael@0 | 13 | |
| michael@0 | 14 | struct SkFlingState { |
| michael@0 | 15 | SkFlingState() : fActive(false) {} |
| michael@0 | 16 | |
| michael@0 | 17 | bool isActive() const { return fActive; } |
| michael@0 | 18 | void stop() { fActive = false; } |
| michael@0 | 19 | |
| michael@0 | 20 | void reset(float sx, float sy); |
| michael@0 | 21 | bool evaluateMatrix(SkMatrix* matrix); |
| michael@0 | 22 | |
| michael@0 | 23 | private: |
| michael@0 | 24 | SkPoint fDirection; |
| michael@0 | 25 | SkScalar fSpeed0; |
| michael@0 | 26 | double fTime0; |
| michael@0 | 27 | bool fActive; |
| michael@0 | 28 | }; |
| michael@0 | 29 | |
| michael@0 | 30 | class SkTouchGesture { |
| michael@0 | 31 | public: |
| michael@0 | 32 | SkTouchGesture(); |
| michael@0 | 33 | ~SkTouchGesture(); |
| michael@0 | 34 | |
| michael@0 | 35 | void touchBegin(void* owner, float x, float y); |
| michael@0 | 36 | void touchMoved(void* owner, float x, float y); |
| michael@0 | 37 | void touchEnd(void* owner); |
| michael@0 | 38 | void reset(); |
| michael@0 | 39 | |
| michael@0 | 40 | bool isActive() { return fFlinger.isActive(); } |
| michael@0 | 41 | void stop() { fFlinger.stop(); } |
| michael@0 | 42 | |
| michael@0 | 43 | const SkMatrix& localM(); |
| michael@0 | 44 | const SkMatrix& globalM() const { return fGlobalM; } |
| michael@0 | 45 | |
| michael@0 | 46 | private: |
| michael@0 | 47 | enum State { |
| michael@0 | 48 | kEmpty_State, |
| michael@0 | 49 | kTranslate_State, |
| michael@0 | 50 | kZoom_State, |
| michael@0 | 51 | }; |
| michael@0 | 52 | |
| michael@0 | 53 | struct Rec { |
| michael@0 | 54 | void* fOwner; |
| michael@0 | 55 | float fStartX, fStartY; |
| michael@0 | 56 | float fPrevX, fPrevY; |
| michael@0 | 57 | float fLastX, fLastY; |
| michael@0 | 58 | SkMSec fPrevT, fLastT; |
| michael@0 | 59 | }; |
| michael@0 | 60 | SkTDArray<Rec> fTouches; |
| michael@0 | 61 | |
| michael@0 | 62 | State fState; |
| michael@0 | 63 | SkMatrix fLocalM, fGlobalM; |
| michael@0 | 64 | SkFlingState fFlinger; |
| michael@0 | 65 | SkMSec fLastUpT; |
| michael@0 | 66 | SkPoint fLastUpP; |
| michael@0 | 67 | |
| michael@0 | 68 | |
| michael@0 | 69 | void flushLocalM(); |
| michael@0 | 70 | int findRec(void* owner) const; |
| michael@0 | 71 | void appendNewRec(void* owner, float x, float y); |
| michael@0 | 72 | float computePinch(const Rec&, const Rec&); |
| michael@0 | 73 | float limitTotalZoom(float scale) const; |
| michael@0 | 74 | bool handleDblTap(float, float); |
| michael@0 | 75 | }; |
| michael@0 | 76 | |
| michael@0 | 77 | #endif |
