skia2/include/effects/SkAvoidXfermode.h
commit-bot@chromium.org bd0be25074 Remove SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS flag.
Neither Chrome nor Android uses this flag anymore.
Make sure all constructors touched that only have one parameter are marked as 'explicit'.

BUG=2187
R=scroggo@google.com, reed@google.com

Author: dominikg@chromium.org

Review URL: https://codereview.chromium.org/282203004

git-svn-id: http://skia.googlecode.com/svn/trunk@14749 2bbb7eff-a529-9590-31e7-b0007b416f81
2014-05-15 15:40:41 +00:00

69 lines
2.4 KiB
C++

/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkAvoidXfermode_DEFINED
#define SkAvoidXfermode_DEFINED
#include "SkXfermode.h"
/** \class SkAvoidXfermode
This xfermode will draw the src everywhere except on top of the specified
color.
*/
class SK_API SkAvoidXfermode : public SkXfermode {
public:
enum Mode {
kAvoidColor_Mode, //!< draw everywhere except on the opColor
kTargetColor_Mode //!< draw only on top of the opColor
};
/** This xfermode draws, or doesn't draw, based on the destination's
distance from an op-color.
There are two modes, and each mode interprets a tolerance value.
Avoid: In this mode, drawing is allowed only on destination pixels that
are different from the op-color.
Tolerance near 0: avoid any colors even remotely similar to the op-color
Tolerance near 255: avoid only colors nearly identical to the op-color
Target: In this mode, drawing only occurs on destination pixels that
are similar to the op-color
Tolerance near 0: draw only on colors that are nearly identical to the op-color
Tolerance near 255: draw on any colors even remotely similar to the op-color
*/
static SkAvoidXfermode* Create(SkColor opColor, U8CPU tolerance, Mode mode) {
return SkNEW_ARGS(SkAvoidXfermode, (opColor, tolerance, mode));
}
// overrides from SkXfermode
virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
const SkAlpha aa[]) const SK_OVERRIDE;
virtual void xfer16(uint16_t dst[], const SkPMColor src[], int count,
const SkAlpha aa[]) const SK_OVERRIDE;
virtual void xferA8(SkAlpha dst[], const SkPMColor src[], int count,
const SkAlpha aa[]) const SK_OVERRIDE;
SK_TO_STRING_OVERRIDE()
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkAvoidXfermode)
protected:
SkAvoidXfermode(SkColor opColor, U8CPU tolerance, Mode mode);
explicit SkAvoidXfermode(SkReadBuffer&);
virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
private:
SkColor fOpColor;
uint32_t fDistMul; // x.14
Mode fMode;
typedef SkXfermode INHERITED;
};
#endif