michael@0: 
michael@0: /*
michael@0:  * Copyright 2011 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: #include "SkParsePaint.h"
michael@0: #include "SkTSearch.h"
michael@0: #include "SkParse.h"
michael@0: #include "SkImageDecoder.h"
michael@0: #include "SkGradientShader.h"
michael@0: 
michael@0: static SkShader* inflate_shader(const SkDOM& dom, const SkDOM::Node* node)
michael@0: {
michael@0:     if ((node = dom.getFirstChild(node, "shader")) == NULL)
michael@0:         return NULL;
michael@0: 
michael@0:     const char* str;
michael@0: 
michael@0:     if (dom.hasAttr(node, "type", "linear-gradient"))
michael@0:     {
michael@0:         SkColor        colors[2];
michael@0:         SkPoint        pts[2];
michael@0: 
michael@0:         colors[0] = colors[1] = SK_ColorBLACK;    // need to initialized the alpha to opaque, since FindColor doesn't set it
michael@0:         if ((str = dom.findAttr(node, "c0")) != NULL &&
michael@0:             SkParse::FindColor(str, &colors[0]) &&
michael@0:             (str = dom.findAttr(node, "c1")) != NULL &&
michael@0:             SkParse::FindColor(str, &colors[1]) &&
michael@0:             dom.findScalars(node, "p0", &pts[0].fX, 2) &&
michael@0:             dom.findScalars(node, "p1", &pts[1].fX, 2))
michael@0:         {
michael@0:             SkShader::TileMode    mode = SkShader::kClamp_TileMode;
michael@0:             int                    index;
michael@0: 
michael@0:             if ((index = dom.findList(node, "tile-mode", "clamp,repeat,mirror")) >= 0)
michael@0:                 mode = (SkShader::TileMode)index;
michael@0:             return SkGradientShader::CreateLinear(pts, colors, NULL, 2, mode);
michael@0:         }
michael@0:     }
michael@0:     else if (dom.hasAttr(node, "type", "bitmap"))
michael@0:     {
michael@0:         if ((str = dom.findAttr(node, "src")) == NULL)
michael@0:             return NULL;
michael@0: 
michael@0:         SkBitmap    bm;
michael@0: 
michael@0:         if (SkImageDecoder::DecodeFile(str, &bm))
michael@0:         {
michael@0:             SkShader::TileMode    mode = SkShader::kRepeat_TileMode;
michael@0:             int                    index;
michael@0: 
michael@0:             if ((index = dom.findList(node, "tile-mode", "clamp,repeat,mirror")) >= 0)
michael@0:                 mode = (SkShader::TileMode)index;
michael@0: 
michael@0:             return SkShader::CreateBitmapShader(bm, mode, mode);
michael@0:         }
michael@0:     }
michael@0:     return NULL;
michael@0: }
michael@0: 
michael@0: void SkPaint_Inflate(SkPaint* paint, const SkDOM& dom, const SkDOM::Node* node)
michael@0: {
michael@0:     SkASSERT(paint);
michael@0:     SkASSERT(&dom);
michael@0:     SkASSERT(node);
michael@0: 
michael@0:     SkScalar x;
michael@0: 
michael@0:     if (dom.findScalar(node, "stroke-width", &x))
michael@0:         paint->setStrokeWidth(x);
michael@0:     if (dom.findScalar(node, "text-size", &x))
michael@0:         paint->setTextSize(x);
michael@0: 
michael@0:     bool    b;
michael@0: 
michael@0:     SkASSERT("legacy: use is-stroke" && !dom.findBool(node, "is-frame", &b));
michael@0: 
michael@0:     if (dom.findBool(node, "is-stroke", &b))
michael@0:         paint->setStyle(b ? SkPaint::kStroke_Style : SkPaint::kFill_Style);
michael@0:     if (dom.findBool(node, "is-antialias", &b))
michael@0:         paint->setAntiAlias(b);
michael@0:     if (dom.findBool(node, "is-lineartext", &b))
michael@0:         paint->setLinearText(b);
michael@0: 
michael@0:     const char* str = dom.findAttr(node, "color");
michael@0:     if (str)
michael@0:     {
michael@0:         SkColor    c = paint->getColor();
michael@0:         if (SkParse::FindColor(str, &c))
michael@0:             paint->setColor(c);
michael@0:     }
michael@0: 
michael@0:     // do this AFTER parsing for the color
michael@0:     if (dom.findScalar(node, "opacity", &x))
michael@0:     {
michael@0:         x = SkMaxScalar(0, SkMinScalar(x, SK_Scalar1));
michael@0:         paint->setAlpha(SkScalarRoundToInt(x * 255));
michael@0:     }
michael@0: 
michael@0:     int    index = dom.findList(node, "text-anchor", "left,center,right");
michael@0:     if (index >= 0)
michael@0:         paint->setTextAlign((SkPaint::Align)index);
michael@0: 
michael@0:     SkShader* shader = inflate_shader(dom, node);
michael@0:     if (shader)
michael@0:         paint->setShader(shader)->unref();
michael@0: }