The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/svg/SkSVGGradient.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,114 @@
     1.4 +
     1.5 +/*
     1.6 + * Copyright 2006 The Android Open Source Project
     1.7 + *
     1.8 + * Use of this source code is governed by a BSD-style license that can be
     1.9 + * found in the LICENSE file.
    1.10 + */
    1.11 +
    1.12 +
    1.13 +#include "SkSVGGradient.h"
    1.14 +#include "SkSVGParser.h"
    1.15 +#include "SkSVGStop.h"
    1.16 +
    1.17 +SkSVGGradient::SkSVGGradient() {
    1.18 +}
    1.19 +
    1.20 +SkSVGElement* SkSVGGradient::getGradient() {
    1.21 +    return this;
    1.22 +}
    1.23 +
    1.24 +bool SkSVGGradient::isDef() {
    1.25 +    return true;
    1.26 +}
    1.27 +
    1.28 +bool SkSVGGradient::isNotDef() {
    1.29 +    return false;
    1.30 +}
    1.31 +
    1.32 +void SkSVGGradient::translate(SkSVGParser& parser, bool defState) {
    1.33 +    INHERITED::translate(parser, defState);
    1.34 +    // !!! no support for 'objectBoundingBox' yet
    1.35 +    bool first = true;
    1.36 +    bool addedFirst = false;
    1.37 +    bool addedLast = false;
    1.38 +    SkString offsets("[");
    1.39 +    SkString* lastOffset = NULL;
    1.40 +    for (SkSVGElement** ptr = fChildren.begin(); ptr < fChildren.end(); ptr++) {
    1.41 +        SkASSERT((*ptr)->getType() == SkSVGType_Stop);
    1.42 +        SkSVGStop* stop = (SkSVGStop*) *ptr;
    1.43 +        if (first && stop->f_offset.equals("0") == false) {
    1.44 +            addedFirst = true;
    1.45 +            offsets.append("0,");
    1.46 +        }
    1.47 +        SkString* thisOffset = &stop->f_offset;
    1.48 +        if (lastOffset && thisOffset->equals(*lastOffset)) {
    1.49 +            if (thisOffset->equals("1")) {
    1.50 +                offsets.remove(offsets.size() - 2, 2);
    1.51 +                offsets.append(".999,");
    1.52 +            } else {
    1.53 +                SkASSERT(0); // !!! need to write this case
    1.54 +            }
    1.55 +        }
    1.56 +        offsets.append(*thisOffset);
    1.57 +        if (ptr == fChildren.end() - 1) { // last
    1.58 +            if (stop->f_offset.equals("1") == false) {
    1.59 +                offsets.append(",1");
    1.60 +                addedLast = true;
    1.61 +            }
    1.62 +        } else
    1.63 +            offsets.appendUnichar(',');
    1.64 +        first = false;
    1.65 +        lastOffset = thisOffset;
    1.66 +    }
    1.67 +    offsets.appendUnichar(']');
    1.68 +    parser._addAttribute("offsets", offsets);
    1.69 +    if (addedFirst)
    1.70 +        parser.translate(*fChildren.begin(), defState);
    1.71 +    for (SkSVGElement** ptr = fChildren.begin(); ptr < fChildren.end(); ptr++)
    1.72 +        parser.translate(*ptr, defState);
    1.73 +    if (addedLast)
    1.74 +        parser.translate(*(fChildren.end() - 1), defState);
    1.75 +}
    1.76 +
    1.77 +void SkSVGGradient::translateGradientUnits(SkString& units) {
    1.78 +    // !!! no support for 'objectBoundingBox' yet
    1.79 +    SkASSERT(strcmp(units.c_str(), "userSpaceOnUse") == 0);
    1.80 +}
    1.81 +
    1.82 +void SkSVGGradient::write(SkSVGParser& parser, SkString& baseColor) {
    1.83 +    if (baseColor.c_str()[0] != '#')
    1.84 +        return;
    1.85 +    SkSVGPaint* saveHead = parser.fHead;
    1.86 +    parser.fHead = &fPaintState;
    1.87 +    parser.fSuppressPaint = true;
    1.88 +    SkString originalID(f_id);
    1.89 +    f_id.set("mask"); // write out gradient named given name + color (less initial #)
    1.90 +    f_id.append(baseColor.c_str() + 1);
    1.91 +    SkString originalColors;
    1.92 +    for (SkSVGElement** ptr = fChildren.begin(); ptr < fChildren.end(); ptr++) {
    1.93 +        SkSVGStop* colorElement = (SkSVGStop*) *ptr;
    1.94 +        SkString& color = colorElement->fPaintState.f_stopColor;
    1.95 +        originalColors.append(color);
    1.96 +        originalColors.appendUnichar(',');
    1.97 +        SkASSERT(color.c_str()[0] == '#');
    1.98 +        SkString replacement;
    1.99 +        replacement.set("0x");
   1.100 +        replacement.append(color.c_str() + 1, 2); // add stop colors using given color, turning existing stop color into alpha
   1.101 +        SkASSERT(baseColor.c_str()[0] == '#');
   1.102 +        SkASSERT(baseColor.size() == 7);
   1.103 +        replacement.append(baseColor.c_str() + 1);
   1.104 +        color.set(replacement);
   1.105 +    }
   1.106 +    translate(parser, true);
   1.107 +    const char* originalPtr = originalColors.c_str(); // restore original gradient values
   1.108 +    for (SkSVGElement** ptr = fChildren.begin(); ptr < fChildren.end(); ptr++) {
   1.109 +        SkSVGStop* color = (SkSVGStop*) *ptr;
   1.110 +        const char* originalEnd = strchr(originalPtr, ',');
   1.111 +        color->fPaintState.f_stopColor.set(originalPtr, originalEnd - originalPtr);
   1.112 +        originalPtr = originalEnd + 1;
   1.113 +    }
   1.114 +    f_id.set(originalID);
   1.115 +    parser.fSuppressPaint = false;
   1.116 +    parser.fHead = saveHead;
   1.117 +}