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 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 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(SkScalarRound(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 } 110 111
