1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkDumpCanvas_DEFINED
#define SkDumpCanvas_DEFINED
#include "SkCanvas.h"
#include "SkVertices.h"
/** This class overrides all the draw methods on SkCanvas, and formats them
as text, and then sends that to a Dumper helper object.
Typical use might be to dump a display list to a log file to see what is
being drawn.
*/
class SkDumpCanvas : public SkCanvas {
public:
class Dumper;
explicit SkDumpCanvas(Dumper* = nullptr);
~SkDumpCanvas() override;
enum Verb {
kNULL_Verb,
kSave_Verb,
kRestore_Verb,
kMatrix_Verb,
kClip_Verb,
kDrawPaint_Verb,
kDrawPoints_Verb,
kDrawOval_Verb,
kDrawArc_Verb,
kDrawRect_Verb,
kDrawRRect_Verb,
kDrawDRRect_Verb,
kDrawPath_Verb,
kDrawBitmap_Verb,
kDrawText_Verb,
kDrawPicture_Verb,
kDrawDrawable_Verb,
kDrawVertices_Verb,
kDrawPatch_Verb,
kDrawData_Verb, // obsolete
kDrawAnnotation_Verb,
kCull_Verb
};
/** Subclasses of this are installed on the DumpCanvas, and then called for
each drawing command.
*/
class Dumper : public SkRefCnt {
public:
virtual void dump(SkDumpCanvas*, SkDumpCanvas::Verb, const char str[],
const SkPaint*) = 0;
private:
typedef SkRefCnt INHERITED;
};
Dumper* getDumper() const { return fDumper; }
void setDumper(Dumper*);
int getNestLevel() const { return fNestLevel; }
protected:
void willSave() override;
SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
void willRestore() override;
void didConcat(const SkMatrix&) override;
void didSetMatrix(const SkMatrix&) override;
void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
virtual void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
const SkPaint&) override;
virtual void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
const SkPaint&) override;
virtual void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
SkScalar constY, const SkPaint&) override;
virtual void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path,
const SkMatrix* matrix, const SkPaint&) override;
void onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform xform[],
const SkRect* cull, const SkPaint& paint) override;
virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
const SkPaint& paint) override;
virtual void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
const SkPoint texCoords[4], SkBlendMode,
const SkPaint& paint) override;
void onDrawPaint(const SkPaint&) override;
void onDrawPoints(PointMode, size_t count, const SkPoint pts[], const SkPaint&) override;
void onDrawRect(const SkRect&, const SkPaint&) override;
void onDrawOval(const SkRect&, const SkPaint&) override;
void onDrawArc(const SkRect&, SkScalar, SkScalar, bool, const SkPaint&) override;
void onDrawRRect(const SkRRect&, const SkPaint&) override;
void onDrawPath(const SkPath&, const SkPaint&) override;
void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst, const SkPaint*,
SrcRectConstraint) override;
void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
const SkPaint*, SrcRectConstraint) override;
void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
const SkPaint*) override;
void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override;
void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override;
void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override;
void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override;
void onClipRegion(const SkRegion&, SkClipOp) override;
void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
void onDrawAnnotation(const SkRect&, const char key[], SkData* value) override;
static const char* EdgeStyleToAAString(ClipEdgeStyle edgeStyle);
private:
Dumper* fDumper;
int fNestLevel; // for nesting recursive elements like pictures
void dump(Verb, const SkPaint*, const char format[], ...);
typedef SkCanvas INHERITED;
};
/** Formats the draw commands, and send them to a function-pointer provided
by the caller.
*/
class SkFormatDumper : public SkDumpCanvas::Dumper {
public:
SkFormatDumper(void (*)(const char text[], void* refcon), void* refcon);
// override from baseclass that does the formatting, and in turn calls
// the function pointer that was passed to the constructor
virtual void dump(SkDumpCanvas*, SkDumpCanvas::Verb, const char str[],
const SkPaint*) override;
private:
void (*fProc)(const char*, void*);
void* fRefcon;
typedef SkDumpCanvas::Dumper INHERITED;
};
/** Subclass of Dumper that dumps the drawing command to SkDebugf
*/
class SkDebugfDumper : public SkFormatDumper {
public:
SkDebugfDumper();
private:
typedef SkFormatDumper INHERITED;
};
#endif
|
