The Tor Browser: gfx/skia/trunk/src/animator/SkMatrixParts.cpp@a63d609f5ebe

     2 /*

     3  * Copyright 2006 The Android Open Source Project

     4  *

     5  * Use of this source code is governed by a BSD-style license that can be

     6  * found in the LICENSE file.

     7  */

    10 #include "SkMatrixParts.h"

    11 #include "SkAnimateMaker.h"

    12 #include "SkDrawMatrix.h"

    13 #include "SkDrawRectangle.h"

    14 #include "SkDrawPath.h"

    16 SkMatrixPart::SkMatrixPart() : fMatrix(NULL) {

    17 }

    19 void SkMatrixPart::dirty() {

    20     fMatrix->dirty();

    21 }

    23 SkDisplayable* SkMatrixPart::getParent() const {

    24     return fMatrix;

    25 }

    27 bool SkMatrixPart::setParent(SkDisplayable* parent) {

    28     SkASSERT(parent != NULL);

    29     if (parent->isMatrix() == false)

    30         return true;

    31     fMatrix = (SkDrawMatrix*) parent;

    32     return false;

    33 }

    36 #if SK_USE_CONDENSED_INFO == 0

    38 const SkMemberInfo SkRotate::fInfo[] = {

    39     SK_MEMBER(center, Point),

    40     SK_MEMBER(degrees, Float)

    41 };

    43 #endif

    45 DEFINE_GET_MEMBER(SkRotate);

    47 SkRotate::SkRotate() : degrees(0) {

    48     center.fX = center.fY = 0;

    49 }

    51 bool SkRotate::add() {

    52     fMatrix->rotate(degrees, center);

    53     return false;

    54 }

    57 #if SK_USE_CONDENSED_INFO == 0

    59 const SkMemberInfo SkScale::fInfo[] = {

    60     SK_MEMBER(center, Point),

    61     SK_MEMBER(x, Float),

    62     SK_MEMBER(y, Float)

    63 };

    65 #endif

    67 DEFINE_GET_MEMBER(SkScale);

    69 SkScale::SkScale() : x(SK_Scalar1), y(SK_Scalar1) {

    70     center.fX = center.fY = 0;

    71 }

    73 bool SkScale::add() {

    74     fMatrix->scale(x, y, center);

    75     return false;

    76 }

    79 #if SK_USE_CONDENSED_INFO == 0

    81 const SkMemberInfo SkSkew::fInfo[] = {

    82     SK_MEMBER(center, Point),

    83     SK_MEMBER(x, Float),

    84     SK_MEMBER(y, Float)

    85 };

    87 #endif

    89 DEFINE_GET_MEMBER(SkSkew);

    91 SkSkew::SkSkew() : x(0), y(0) {

    92     center.fX = center.fY = 0;

    93 }

    95 bool SkSkew::add() {

    96     fMatrix->skew(x, y, center);

    97     return false;

    98 }

   101 #if SK_USE_CONDENSED_INFO == 0

   103 const SkMemberInfo SkTranslate::fInfo[] = {

   104     SK_MEMBER(x, Float),

   105     SK_MEMBER(y, Float)

   106 };

   108 #endif

   110 DEFINE_GET_MEMBER(SkTranslate);

   112 SkTranslate::SkTranslate() : x(0), y(0) {

   113 }

   115 bool SkTranslate::add() {

   116     fMatrix->translate(x, y);

   117     return false;

   118 }

   121 #if SK_USE_CONDENSED_INFO == 0

   123 const SkMemberInfo SkFromPath::fInfo[] = {

   124     SK_MEMBER(mode, FromPathMode),

   125     SK_MEMBER(offset, Float),

   126     SK_MEMBER(path, Path)

   127 };

   129 #endif

   131 DEFINE_GET_MEMBER(SkFromPath);

   133 SkFromPath::SkFromPath() :

   134     mode(0), offset(0), path(NULL) {

   135 }

   137 SkFromPath::~SkFromPath() {

   138 }

   140 bool SkFromPath::add() {

   141     if (path == NULL)

   142         return true;

   143     static const uint8_t gFlags[] = {

   144         SkPathMeasure::kGetPosAndTan_MatrixFlag,    // normal

   145         SkPathMeasure::kGetTangent_MatrixFlag,      // angle

   146         SkPathMeasure::kGetPosition_MatrixFlag      // position

   147     };

   148     if ((unsigned)mode >= SK_ARRAY_COUNT(gFlags))

   149         return true;

   150     SkMatrix result;

   151     fPathMeasure.setPath(&path->getPath(), false);

   152     if (fPathMeasure.getMatrix(offset, &result, (SkPathMeasure::MatrixFlags)gFlags[mode]))

   153         fMatrix->set(result);

   154     return false;

   155 }

   158 #if SK_USE_CONDENSED_INFO == 0

   160 const SkMemberInfo SkRectToRect::fInfo[] = {

   161     SK_MEMBER(destination, Rect),

   162     SK_MEMBER(source, Rect)

   163 };

   165 #endif

   167 DEFINE_GET_MEMBER(SkRectToRect);

   169 SkRectToRect::SkRectToRect() :

   170     source(NULL), destination(NULL) {

   171 }

   173 SkRectToRect::~SkRectToRect() {

   174 }

   176 bool SkRectToRect::add() {

   177     if (source == NULL || destination == NULL)

   178         return true;

   179     SkMatrix temp;

   180     temp.setRectToRect(source->fRect, destination->fRect,

   181                        SkMatrix::kFill_ScaleToFit);

   182     fMatrix->set(temp);

   183     return false;

   184 }

   186 #ifdef SK_DUMP_ENABLED

   187 void SkRectToRect::dump(SkAnimateMaker* maker) {

   188     dumpBase(maker);

   189     SkDebugf("/>\n");

   190     SkDisplayList::fIndent += 4;

   191     if (source) {

   192         SkDebugf("%*s<source>\n", SkDisplayList::fIndent, "");

   193         SkDisplayList::fIndent += 4;

   194         source->dump(maker);

   195         SkDisplayList::fIndent -= 4;

   196         SkDebugf("%*s</source>\n", SkDisplayList::fIndent, "");

   197     }

   198     if (destination) {

   199         SkDebugf("%*s<destination>\n", SkDisplayList::fIndent, "");

   200         SkDisplayList::fIndent += 4;

   201         destination->dump(maker);

   202         SkDisplayList::fIndent -= 4;

   203         SkDebugf("%*s</destination>\n", SkDisplayList::fIndent, "");

   204     }

   205     SkDisplayList::fIndent -= 4;

   206     dumpEnd(maker);

   207 }

   208 #endif

   210 const SkMemberInfo* SkRectToRect::preferredChild(SkDisplayTypes ) {

   211     if (source == NULL)

   212         return getMember("source"); // !!! cwap! need to refer to member through enum like kScope instead

   213     else {

   214         SkASSERT(destination == NULL);

   215         return getMember("destination");

   216     }

   217 }

   220 #if SK_USE_CONDENSED_INFO == 0

   222 const SkMemberInfo SkPolyToPoly::fInfo[] = {

   223     SK_MEMBER(destination, Polygon),

   224     SK_MEMBER(source, Polygon)

   225 };

   227 #endif

   229 DEFINE_GET_MEMBER(SkPolyToPoly);

   231 SkPolyToPoly::SkPolyToPoly() : source(NULL), destination(NULL) {

   232 }

   234 SkPolyToPoly::~SkPolyToPoly() {

   235 }

   237 bool SkPolyToPoly::add() {

   238     SkASSERT(source);

   239     SkASSERT(destination);

   240     SkPoint src[4];

   241     SkPoint dst[4];

   242     SkPath& sourcePath = source->getPath();

   243     int srcPts = sourcePath.getPoints(src, 4);

   244     SkPath& destPath = destination->getPath();

   245     int dstPts = destPath.getPoints(dst, 4);

   246     if (srcPts != dstPts)

   247         return true;

   248     SkMatrix temp;

   249     temp.setPolyToPoly(src, dst, srcPts);

   250     fMatrix->set(temp);

   251     return false;

   252 }

   254 #ifdef SK_DUMP_ENABLED

   255 void SkPolyToPoly::dump(SkAnimateMaker* maker) {

   256     dumpBase(maker);

   257     SkDebugf("/>\n");

   258     SkDisplayList::fIndent += 4;

   259     if (source) {

   260         SkDebugf("%*s<source>\n", SkDisplayList::fIndent, "");

   261         SkDisplayList::fIndent += 4;

   262         source->dump(maker);

   263         SkDisplayList::fIndent -= 4;

   264         SkDebugf("%*s</source>\n", SkDisplayList::fIndent, "");

   265     }

   266     if (destination) {

   267         SkDebugf("%*s<destination>\n", SkDisplayList::fIndent, "");

   268         SkDisplayList::fIndent += 4;

   269         destination->dump(maker);

   270         SkDisplayList::fIndent -= 4;

   271         SkDebugf("%*s</destination>\n", SkDisplayList::fIndent, "");

   272     }

   273     SkDisplayList::fIndent -= 4;

   274     dumpEnd(maker);

   275 }

   276 #endif

   278 void SkPolyToPoly::onEndElement(SkAnimateMaker& ) {

   279     SkASSERT(source);

   280     SkASSERT(destination);

   281     if (source->childHasID() || destination->childHasID())

   282         fMatrix->setChildHasID();

   283 }

   285 const SkMemberInfo* SkPolyToPoly::preferredChild(SkDisplayTypes ) {

   286     if (source == NULL)

   287         return getMember("source"); // !!! cwap! need to refer to member through enum like kScope instead

   288     else {

   289         SkASSERT(destination == NULL);

   290         return getMember("destination");

   291     }

   292 }

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