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/*
* Copyright 2006 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkDrawPaint.h"
#include "SkAnimateMaker.h"
#include "SkDrawColor.h"
#include "SkDrawShader.h"
#include "SkMaskFilter.h"
#include "SkPaintPart.h"
#include "SkPathEffect.h"
enum SkPaint_Functions {
SK_FUNCTION(measureText)
};
enum SkPaint_Properties {
SK_PROPERTY(ascent),
SK_PROPERTY(descent)
};
// !!! in the future, this could be compiled by build-condensed-info into an array of parameters
// with a lookup table to find the first parameter -- for now, it is iteratively searched through
const SkFunctionParamType SkDrawPaint::fFunctionParameters[] = {
(SkFunctionParamType) SkType_String,
(SkFunctionParamType) 0 // terminator for parameter list (there may be multiple parameter lists)
};
#if SK_USE_CONDENSED_INFO == 0
const SkMemberInfo SkDrawPaint::fInfo[] = {
SK_MEMBER(antiAlias, Boolean),
SK_MEMBER_PROPERTY(ascent, Float),
SK_MEMBER(color, Color),
SK_MEMBER_PROPERTY(descent, Float),
SK_MEMBER(fakeBold, Boolean),
SK_MEMBER(filterBitmap, Boolean),
SK_MEMBER(linearText, Boolean),
SK_MEMBER(maskFilter, MaskFilter),
SK_MEMBER_FUNCTION(measureText, Float),
SK_MEMBER(pathEffect, PathEffect),
SK_MEMBER(shader, Shader),
SK_MEMBER(strikeThru, Boolean),
SK_MEMBER(stroke, Boolean),
SK_MEMBER(strokeCap, Cap),
SK_MEMBER(strokeJoin, Join),
SK_MEMBER(strokeMiter, Float),
SK_MEMBER(strokeWidth, Float),
SK_MEMBER(style, Style),
SK_MEMBER(textAlign, Align),
SK_MEMBER(textScaleX, Float),
SK_MEMBER(textSize, Float),
SK_MEMBER(textSkewX, Float),
SK_MEMBER(typeface, Typeface),
SK_MEMBER(underline, Boolean),
SK_MEMBER(xfermode, Xfermode)
};
#endif
DEFINE_GET_MEMBER(SkDrawPaint);
SkDrawPaint::SkDrawPaint() : antiAlias(-1), color(NULL), fakeBold(-1), filterBitmap(-1),
linearText(-1), maskFilter((SkDrawMaskFilter*) -1), pathEffect((SkDrawPathEffect*) -1),
shader((SkDrawShader*) -1), strikeThru(-1), stroke(-1),
strokeCap((SkPaint::Cap) -1), strokeJoin((SkPaint::Join) -1), strokeMiter(SK_ScalarNaN),
strokeWidth(SK_ScalarNaN), style((SkPaint::Style) -1),
textAlign((SkPaint::Align) -1), textScaleX(SK_ScalarNaN), textSize(SK_ScalarNaN),
textSkewX(SK_ScalarNaN), typeface((SkDrawTypeface*) -1),
underline(-1), xfermode((SkXfermode::Mode) -1), fOwnsColor(false), fOwnsMaskFilter(false),
fOwnsPathEffect(false), fOwnsShader(false), fOwnsTypeface(false) {
}
SkDrawPaint::~SkDrawPaint() {
if (fOwnsColor)
delete color;
if (fOwnsMaskFilter)
delete maskFilter;
if (fOwnsPathEffect)
delete pathEffect;
if (fOwnsShader)
delete shader;
if (fOwnsTypeface)
delete typeface;
}
bool SkDrawPaint::add(SkAnimateMaker* maker, SkDisplayable* child) {
SkASSERT(child && child->isPaintPart());
SkPaintPart* part = (SkPaintPart*) child;
if (part->add() && maker)
maker->setErrorCode(SkDisplayXMLParserError::kErrorAddingToPaint);
return true;
}
SkDisplayable* SkDrawPaint::deepCopy(SkAnimateMaker* maker) {
SkDrawColor* tempColor = color;
color = NULL;
SkDrawPaint* copy = (SkDrawPaint*) INHERITED::deepCopy(maker);
color = tempColor;
tempColor = (SkDrawColor*) color->deepCopy(maker);
tempColor->setParent(copy);
tempColor->add();
copy->fOwnsColor = true;
return copy;
}
bool SkDrawPaint::draw(SkAnimateMaker& maker) {
SkPaint* paint = maker.fPaint;
setupPaint(paint);
return false;
}
#ifdef SK_DUMP_ENABLED
void SkDrawPaint::dump(SkAnimateMaker* maker) {
dumpBase(maker);
dumpAttrs(maker);
bool closedYet = false;
SkDisplayList::fIndent +=4;
//should i say if (maskFilter && ...?
if (maskFilter != (SkDrawMaskFilter*)-1) {
SkDebugf(">\n");
maskFilter->dump(maker);
closedYet = true;
}
if (pathEffect != (SkDrawPathEffect*) -1) {
if (closedYet == false) {
SkDebugf(">\n");
closedYet = true;
}
pathEffect->dump(maker);
}
if (fOwnsTypeface) {
if (closedYet == false) {
SkDebugf(">\n");
closedYet = true;
}
typeface->dump(maker);
}
SkDisplayList::fIndent -= 4;
dumpChildren(maker, closedYet);
}
#endif
void SkDrawPaint::executeFunction(SkDisplayable* target, int index,
SkTDArray<SkScriptValue>& parameters, SkDisplayTypes type,
SkScriptValue* scriptValue) {
if (scriptValue == NULL)
return;
SkASSERT(target == this);
switch (index) {
case SK_FUNCTION(measureText): {
SkASSERT(parameters.count() == 1);
SkASSERT(type == SkType_Float);
SkPaint paint;
setupPaint(&paint);
scriptValue->fType = SkType_Float;
SkASSERT(parameters[0].fType == SkType_String);
scriptValue->fOperand.fScalar = paint.measureText(parameters[0].fOperand.fString->c_str(),
parameters[0].fOperand.fString->size());
// SkDebugf("measureText: %s = %g\n", parameters[0].fOperand.fString->c_str(),
// scriptValue->fOperand.fScalar / 65536.0f);
} break;
default:
SkASSERT(0);
}
}
const SkFunctionParamType* SkDrawPaint::getFunctionsParameters() {
return fFunctionParameters;
}
bool SkDrawPaint::getProperty(int index, SkScriptValue* value) const {
SkPaint::FontMetrics metrics;
SkPaint paint;
setupPaint(&paint);
paint.getFontMetrics(&metrics);
switch (index) {
case SK_PROPERTY(ascent):
value->fOperand.fScalar = metrics.fAscent;
break;
case SK_PROPERTY(descent):
value->fOperand.fScalar = metrics.fDescent;
break;
// should consider returning fLeading as well (or roll it into ascent/descent somehow
default:
SkASSERT(0);
return false;
}
value->fType = SkType_Float;
return true;
}
bool SkDrawPaint::resolveIDs(SkAnimateMaker& maker, SkDisplayable* origDisp, SkApply* ) {
SkASSERT(origDisp->isPaint());
SkDrawPaint* original = (SkDrawPaint*) origDisp;
if (fOwnsColor && maker.resolveID(color, original->color) == false)
return true;
if (fOwnsMaskFilter && maker.resolveID(maskFilter, original->maskFilter) == false)
return true;
if (fOwnsPathEffect && maker.resolveID(pathEffect, original->pathEffect) == false)
return true;
if (fOwnsShader && maker.resolveID(shader, original->shader) == false)
return true;
if (fOwnsTypeface && maker.resolveID(typeface, original->typeface) == false)
return true;
return false; // succeeded
}
void SkDrawPaint::setupPaint(SkPaint* paint) const {
if (antiAlias != -1)
paint->setAntiAlias(SkToBool(antiAlias));
if (color != NULL)
paint->setColor(color->getColor());
if (fakeBold != -1)
paint->setFakeBoldText(SkToBool(fakeBold));
if (filterBitmap != -1)
paint->setFilterLevel(filterBitmap ? SkPaint::kLow_FilterLevel : SkPaint::kNone_FilterLevel);
// stroke is legacy; style setting if present overrides stroke
if (stroke != -1)
paint->setStyle(SkToBool(stroke) ? SkPaint::kStroke_Style : SkPaint::kFill_Style);
if (style != -1)
paint->setStyle((SkPaint::Style) style);
if (linearText != -1)
paint->setLinearText(SkToBool(linearText));
if (maskFilter == NULL)
paint->setMaskFilter(NULL);
else if (maskFilter != (SkDrawMaskFilter*) -1)
SkSafeUnref(paint->setMaskFilter(maskFilter->getMaskFilter()));
if (pathEffect == NULL)
paint->setPathEffect(NULL);
else if (pathEffect != (SkDrawPathEffect*) -1)
SkSafeUnref(paint->setPathEffect(pathEffect->getPathEffect()));
if (shader == NULL)
paint->setShader(NULL);
else if (shader != (SkDrawShader*) -1)
SkSafeUnref(paint->setShader(shader->getShader()));
if (strikeThru != -1)
paint->setStrikeThruText(SkToBool(strikeThru));
if (strokeCap != -1)
paint->setStrokeCap((SkPaint::Cap) strokeCap);
if (strokeJoin != -1)
paint->setStrokeJoin((SkPaint::Join) strokeJoin);
if (SkScalarIsNaN(strokeMiter) == false)
paint->setStrokeMiter(strokeMiter);
if (SkScalarIsNaN(strokeWidth) == false)
paint->setStrokeWidth(strokeWidth);
if (textAlign != -1)
paint->setTextAlign((SkPaint::Align) textAlign);
if (SkScalarIsNaN(textScaleX) == false)
paint->setTextScaleX(textScaleX);
if (SkScalarIsNaN(textSize) == false)
paint->setTextSize(textSize);
if (SkScalarIsNaN(textSkewX) == false)
paint->setTextSkewX(textSkewX);
if (typeface == NULL)
paint->setTypeface(NULL);
else if (typeface != (SkDrawTypeface*) -1)
SkSafeUnref(paint->setTypeface(typeface->getTypeface()));
if (underline != -1)
paint->setUnderlineText(SkToBool(underline));
if (xfermode != -1)
paint->setXfermodeMode((SkXfermode::Mode) xfermode);
}
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