1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/animator/SkDrawPaint.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,269 @@
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 "SkDrawPaint.h"
1.14 +#include "SkAnimateMaker.h"
1.15 +#include "SkDrawColor.h"
1.16 +#include "SkDrawShader.h"
1.17 +#include "SkMaskFilter.h"
1.18 +#include "SkPaintParts.h"
1.19 +#include "SkPathEffect.h"
1.20 +
1.21 +enum SkPaint_Functions {
1.22 + SK_FUNCTION(measureText)
1.23 +};
1.24 +
1.25 +enum SkPaint_Properties {
1.26 + SK_PROPERTY(ascent),
1.27 + SK_PROPERTY(descent)
1.28 +};
1.29 +
1.30 +// !!! in the future, this could be compiled by build-condensed-info into an array of parameters
1.31 +// with a lookup table to find the first parameter -- for now, it is iteratively searched through
1.32 +const SkFunctionParamType SkDrawPaint::fFunctionParameters[] = {
1.33 + (SkFunctionParamType) SkType_String,
1.34 + (SkFunctionParamType) 0 // terminator for parameter list (there may be multiple parameter lists)
1.35 +};
1.36 +
1.37 +
1.38 +#if SK_USE_CONDENSED_INFO == 0
1.39 +
1.40 +const SkMemberInfo SkDrawPaint::fInfo[] = {
1.41 + SK_MEMBER(antiAlias, Boolean),
1.42 + SK_MEMBER_PROPERTY(ascent, Float),
1.43 + SK_MEMBER(color, Color),
1.44 + SK_MEMBER_PROPERTY(descent, Float),
1.45 + SK_MEMBER(fakeBold, Boolean),
1.46 + SK_MEMBER(filterBitmap, Boolean),
1.47 + SK_MEMBER(linearText, Boolean),
1.48 + SK_MEMBER(maskFilter, MaskFilter),
1.49 + SK_MEMBER_FUNCTION(measureText, Float),
1.50 + SK_MEMBER(pathEffect, PathEffect),
1.51 + SK_MEMBER(shader, Shader),
1.52 + SK_MEMBER(strikeThru, Boolean),
1.53 + SK_MEMBER(stroke, Boolean),
1.54 + SK_MEMBER(strokeCap, Cap),
1.55 + SK_MEMBER(strokeJoin, Join),
1.56 + SK_MEMBER(strokeMiter, Float),
1.57 + SK_MEMBER(strokeWidth, Float),
1.58 + SK_MEMBER(style, Style),
1.59 + SK_MEMBER(textAlign, Align),
1.60 + SK_MEMBER(textScaleX, Float),
1.61 + SK_MEMBER(textSize, Float),
1.62 + SK_MEMBER(textSkewX, Float),
1.63 + SK_MEMBER(typeface, Typeface),
1.64 + SK_MEMBER(underline, Boolean),
1.65 + SK_MEMBER(xfermode, Xfermode)
1.66 +};
1.67 +
1.68 +#endif
1.69 +
1.70 +DEFINE_GET_MEMBER(SkDrawPaint);
1.71 +
1.72 +SkDrawPaint::SkDrawPaint() : antiAlias(-1), color(NULL), fakeBold(-1), filterBitmap(-1),
1.73 + linearText(-1), maskFilter((SkDrawMaskFilter*) -1), pathEffect((SkDrawPathEffect*) -1),
1.74 + shader((SkDrawShader*) -1), strikeThru(-1), stroke(-1),
1.75 + strokeCap((SkPaint::Cap) -1), strokeJoin((SkPaint::Join) -1), strokeMiter(SK_ScalarNaN),
1.76 + strokeWidth(SK_ScalarNaN), style((SkPaint::Style) -1),
1.77 + textAlign((SkPaint::Align) -1), textScaleX(SK_ScalarNaN), textSize(SK_ScalarNaN),
1.78 + textSkewX(SK_ScalarNaN), typeface((SkDrawTypeface*) -1),
1.79 + underline(-1), xfermode((SkXfermode::Mode) -1), fOwnsColor(false), fOwnsMaskFilter(false),
1.80 + fOwnsPathEffect(false), fOwnsShader(false), fOwnsTypeface(false) {
1.81 +}
1.82 +
1.83 +SkDrawPaint::~SkDrawPaint() {
1.84 + if (fOwnsColor)
1.85 + delete color;
1.86 + if (fOwnsMaskFilter)
1.87 + delete maskFilter;
1.88 + if (fOwnsPathEffect)
1.89 + delete pathEffect;
1.90 + if (fOwnsShader)
1.91 + delete shader;
1.92 + if (fOwnsTypeface)
1.93 + delete typeface;
1.94 +}
1.95 +
1.96 +bool SkDrawPaint::add(SkAnimateMaker* maker, SkDisplayable* child) {
1.97 + SkASSERT(child && child->isPaintPart());
1.98 + SkPaintPart* part = (SkPaintPart*) child;
1.99 + if (part->add() && maker)
1.100 + maker->setErrorCode(SkDisplayXMLParserError::kErrorAddingToPaint);
1.101 + return true;
1.102 +}
1.103 +
1.104 +SkDisplayable* SkDrawPaint::deepCopy(SkAnimateMaker* maker) {
1.105 + SkDrawColor* tempColor = color;
1.106 + color = NULL;
1.107 + SkDrawPaint* copy = (SkDrawPaint*) INHERITED::deepCopy(maker);
1.108 + color = tempColor;
1.109 + tempColor = (SkDrawColor*) color->deepCopy(maker);
1.110 + tempColor->setParent(copy);
1.111 + tempColor->add();
1.112 + copy->fOwnsColor = true;
1.113 + return copy;
1.114 +}
1.115 +
1.116 +bool SkDrawPaint::draw(SkAnimateMaker& maker) {
1.117 + SkPaint* paint = maker.fPaint;
1.118 + setupPaint(paint);
1.119 + return false;
1.120 +}
1.121 +
1.122 +#ifdef SK_DUMP_ENABLED
1.123 +void SkDrawPaint::dump(SkAnimateMaker* maker) {
1.124 + dumpBase(maker);
1.125 + dumpAttrs(maker);
1.126 + bool closedYet = false;
1.127 + SkDisplayList::fIndent +=4;
1.128 + //should i say if (maskFilter && ...?
1.129 + if (maskFilter != (SkDrawMaskFilter*)-1) {
1.130 + SkDebugf(">\n");
1.131 + maskFilter->dump(maker);
1.132 + closedYet = true;
1.133 + }
1.134 + if (pathEffect != (SkDrawPathEffect*) -1) {
1.135 + if (closedYet == false) {
1.136 + SkDebugf(">\n");
1.137 + closedYet = true;
1.138 + }
1.139 + pathEffect->dump(maker);
1.140 + }
1.141 + if (fOwnsTypeface) {
1.142 + if (closedYet == false) {
1.143 + SkDebugf(">\n");
1.144 + closedYet = true;
1.145 + }
1.146 + typeface->dump(maker);
1.147 + }
1.148 + SkDisplayList::fIndent -= 4;
1.149 + dumpChildren(maker, closedYet);
1.150 +}
1.151 +#endif
1.152 +
1.153 +void SkDrawPaint::executeFunction(SkDisplayable* target, int index,
1.154 + SkTDArray<SkScriptValue>& parameters, SkDisplayTypes type,
1.155 + SkScriptValue* scriptValue) {
1.156 + if (scriptValue == NULL)
1.157 + return;
1.158 + SkASSERT(target == this);
1.159 + switch (index) {
1.160 + case SK_FUNCTION(measureText): {
1.161 + SkASSERT(parameters.count() == 1);
1.162 + SkASSERT(type == SkType_Float);
1.163 + SkPaint paint;
1.164 + setupPaint(&paint);
1.165 + scriptValue->fType = SkType_Float;
1.166 + SkASSERT(parameters[0].fType == SkType_String);
1.167 + scriptValue->fOperand.fScalar = paint.measureText(parameters[0].fOperand.fString->c_str(),
1.168 + parameters[0].fOperand.fString->size());
1.169 +// SkDebugf("measureText: %s = %g\n", parameters[0].fOperand.fString->c_str(),
1.170 +// scriptValue->fOperand.fScalar / 65536.0f);
1.171 + } break;
1.172 + default:
1.173 + SkASSERT(0);
1.174 + }
1.175 +}
1.176 +
1.177 +const SkFunctionParamType* SkDrawPaint::getFunctionsParameters() {
1.178 + return fFunctionParameters;
1.179 +}
1.180 +
1.181 +bool SkDrawPaint::getProperty(int index, SkScriptValue* value) const {
1.182 + SkPaint::FontMetrics metrics;
1.183 + SkPaint paint;
1.184 + setupPaint(&paint);
1.185 + paint.getFontMetrics(&metrics);
1.186 + switch (index) {
1.187 + case SK_PROPERTY(ascent):
1.188 + value->fOperand.fScalar = metrics.fAscent;
1.189 + break;
1.190 + case SK_PROPERTY(descent):
1.191 + value->fOperand.fScalar = metrics.fDescent;
1.192 + break;
1.193 + // should consider returning fLeading as well (or roll it into ascent/descent somehow
1.194 + default:
1.195 + SkASSERT(0);
1.196 + return false;
1.197 + }
1.198 + value->fType = SkType_Float;
1.199 + return true;
1.200 +}
1.201 +
1.202 +bool SkDrawPaint::resolveIDs(SkAnimateMaker& maker, SkDisplayable* origDisp, SkApply* ) {
1.203 + SkASSERT(origDisp->isPaint());
1.204 + SkDrawPaint* original = (SkDrawPaint*) origDisp;
1.205 + if (fOwnsColor && maker.resolveID(color, original->color) == false)
1.206 + return true;
1.207 + if (fOwnsMaskFilter && maker.resolveID(maskFilter, original->maskFilter) == false)
1.208 + return true;
1.209 + if (fOwnsPathEffect && maker.resolveID(pathEffect, original->pathEffect) == false)
1.210 + return true;
1.211 + if (fOwnsShader && maker.resolveID(shader, original->shader) == false)
1.212 + return true;
1.213 + if (fOwnsTypeface && maker.resolveID(typeface, original->typeface) == false)
1.214 + return true;
1.215 + return false; // succeeded
1.216 +}
1.217 +
1.218 +void SkDrawPaint::setupPaint(SkPaint* paint) const {
1.219 + if (antiAlias != -1)
1.220 + paint->setAntiAlias(SkToBool(antiAlias));
1.221 + if (color != NULL)
1.222 + paint->setColor(color->getColor());
1.223 + if (fakeBold != -1)
1.224 + paint->setFakeBoldText(SkToBool(fakeBold));
1.225 + if (filterBitmap != -1)
1.226 + paint->setFilterLevel(filterBitmap ? SkPaint::kLow_FilterLevel : SkPaint::kNone_FilterLevel);
1.227 + // stroke is legacy; style setting if present overrides stroke
1.228 + if (stroke != -1)
1.229 + paint->setStyle(SkToBool(stroke) ? SkPaint::kStroke_Style : SkPaint::kFill_Style);
1.230 + if (style != -1)
1.231 + paint->setStyle((SkPaint::Style) style);
1.232 + if (linearText != -1)
1.233 + paint->setLinearText(SkToBool(linearText));
1.234 + if (maskFilter == NULL)
1.235 + paint->setMaskFilter(NULL);
1.236 + else if (maskFilter != (SkDrawMaskFilter*) -1)
1.237 + SkSafeUnref(paint->setMaskFilter(maskFilter->getMaskFilter()));
1.238 + if (pathEffect == NULL)
1.239 + paint->setPathEffect(NULL);
1.240 + else if (pathEffect != (SkDrawPathEffect*) -1)
1.241 + SkSafeUnref(paint->setPathEffect(pathEffect->getPathEffect()));
1.242 + if (shader == NULL)
1.243 + paint->setShader(NULL);
1.244 + else if (shader != (SkDrawShader*) -1)
1.245 + SkSafeUnref(paint->setShader(shader->getShader()));
1.246 + if (strikeThru != -1)
1.247 + paint->setStrikeThruText(SkToBool(strikeThru));
1.248 + if (strokeCap != -1)
1.249 + paint->setStrokeCap((SkPaint::Cap) strokeCap);
1.250 + if (strokeJoin != -1)
1.251 + paint->setStrokeJoin((SkPaint::Join) strokeJoin);
1.252 + if (SkScalarIsNaN(strokeMiter) == false)
1.253 + paint->setStrokeMiter(strokeMiter);
1.254 + if (SkScalarIsNaN(strokeWidth) == false)
1.255 + paint->setStrokeWidth(strokeWidth);
1.256 + if (textAlign != -1)
1.257 + paint->setTextAlign((SkPaint::Align) textAlign);
1.258 + if (SkScalarIsNaN(textScaleX) == false)
1.259 + paint->setTextScaleX(textScaleX);
1.260 + if (SkScalarIsNaN(textSize) == false)
1.261 + paint->setTextSize(textSize);
1.262 + if (SkScalarIsNaN(textSkewX) == false)
1.263 + paint->setTextSkewX(textSkewX);
1.264 + if (typeface == NULL)
1.265 + paint->setTypeface(NULL);
1.266 + else if (typeface != (SkDrawTypeface*) -1)
1.267 + SkSafeUnref(paint->setTypeface(typeface->getTypeface()));
1.268 + if (underline != -1)
1.269 + paint->setUnderlineText(SkToBool(underline));
1.270 + if (xfermode != -1)
1.271 + paint->setXfermodeMode((SkXfermode::Mode) xfermode);
1.272 +}
