1
2 /*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8 #include "SkParsePaint.h"
9 #include "SkTSearch.h"
10 #include "SkParse.h"
11 #include "SkImageDecoder.h"
12 #include "SkGradientShader.h"
13
inflate_shader(const SkDOM & dom,const SkDOM::Node * node)14 static SkShader* inflate_shader(const SkDOM& dom, const SkDOM::Node* node)
15 {
16 if ((node = dom.getFirstChild(node, "shader")) == NULL)
17 return NULL;
18
19 const char* str;
20
21 if (dom.hasAttr(node, "type", "linear-gradient"))
22 {
23 SkColor colors[2];
24 SkPoint pts[2];
25
26 colors[0] = colors[1] = SK_ColorBLACK; // need to initialized the alpha to opaque, since FindColor doesn't set it
27 if ((str = dom.findAttr(node, "c0")) != NULL &&
28 SkParse::FindColor(str, &colors[0]) &&
29 (str = dom.findAttr(node, "c1")) != NULL &&
30 SkParse::FindColor(str, &colors[1]) &&
31 dom.findScalars(node, "p0", &pts[0].fX, 2) &&
32 dom.findScalars(node, "p1", &pts[1].fX, 2))
33 {
34 SkShader::TileMode mode = SkShader::kClamp_TileMode;
35 int index;
36
37 if ((index = dom.findList(node, "tile-mode", "clamp,repeat,mirror")) >= 0)
38 mode = (SkShader::TileMode)index;
39 return SkGradientShader::CreateLinear(pts, colors, NULL, 2, mode);
40 }
41 }
42 else if (dom.hasAttr(node, "type", "bitmap"))
43 {
44 if ((str = dom.findAttr(node, "src")) == NULL)
45 return NULL;
46
47 SkBitmap bm;
48
49 if (SkImageDecoder::DecodeFile(str, &bm))
50 {
51 SkShader::TileMode mode = SkShader::kRepeat_TileMode;
52 int index;
53
54 if ((index = dom.findList(node, "tile-mode", "clamp,repeat,mirror")) >= 0)
55 mode = (SkShader::TileMode)index;
56
57 return SkShader::CreateBitmapShader(bm, mode, mode);
58 }
59 }
60 return NULL;
61 }
62
SkPaint_Inflate(SkPaint * paint,const SkDOM & dom,const SkDOM::Node * node)63 void SkPaint_Inflate(SkPaint* paint, const SkDOM& dom, const SkDOM::Node* node)
64 {
65 SkASSERT(paint);
66 SkASSERT(&dom);
67 SkASSERT(node);
68
69 SkScalar x;
70
71 if (dom.findScalar(node, "stroke-width", &x))
72 paint->setStrokeWidth(x);
73 if (dom.findScalar(node, "text-size", &x))
74 paint->setTextSize(x);
75
76 bool b;
77
78 SkASSERT("legacy: use is-stroke" && !dom.findBool(node, "is-frame", &b));
79
80 if (dom.findBool(node, "is-stroke", &b))
81 paint->setStyle(b ? SkPaint::kStroke_Style : SkPaint::kFill_Style);
82 if (dom.findBool(node, "is-antialias", &b))
83 paint->setAntiAlias(b);
84 if (dom.findBool(node, "is-lineartext", &b))
85 paint->setLinearText(b);
86
87 const char* str = dom.findAttr(node, "color");
88 if (str)
89 {
90 SkColor c = paint->getColor();
91 if (SkParse::FindColor(str, &c))
92 paint->setColor(c);
93 }
94
95 // do this AFTER parsing for the color
96 if (dom.findScalar(node, "opacity", &x))
97 {
98 x = SkMaxScalar(0, SkMinScalar(x, SK_Scalar1));
99 paint->setAlpha(SkScalarRoundToInt(x * 255));
100 }
101
102 int index = dom.findList(node, "text-anchor", "left,center,right");
103 if (index >= 0)
104 paint->setTextAlign((SkPaint::Align)index);
105
106 SkShader* shader = inflate_shader(dom, node);
107 if (shader)
108 paint->setShader(shader)->unref();
109 }
110