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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 "SkDisplayList.h"
#include "SkAnimateActive.h"
#include "SkAnimateBase.h"
#include "SkAnimateMaker.h"
#include "SkDisplayApply.h"
#include "SkADrawable.h"
#include "SkDrawGroup.h"
#include "SkDrawMatrix.h"
#include "SkInterpolator.h"
#include "SkTime.h"
SkDisplayList::SkDisplayList() : fDrawBounds(true), fUnionBounds(false), fInTime(0) {
}
SkDisplayList::~SkDisplayList() {
}
void SkDisplayList::append(SkActive* active) {
*fActiveList.append() = active;
}
bool SkDisplayList::draw(SkAnimateMaker& maker, SkMSec inTime) {
validate();
fInTime = inTime;
bool result = false;
fInvalBounds.setEmpty();
if (fDrawList.count()) {
for (SkActive** activePtr = fActiveList.begin(); activePtr < fActiveList.end(); activePtr++) {
SkActive* active = *activePtr;
active->reset();
}
for (int index = 0; index < fDrawList.count(); index++) {
SkADrawable* draw = fDrawList[index];
draw->initialize(); // allow matrices to reset themselves
SkASSERT(draw->isDrawable());
validate();
result |= draw->draw(maker);
}
}
validate();
return result;
}
int SkDisplayList::findGroup(SkADrawable* match, SkTDDrawableArray** list,
SkGroup** parent, SkGroup** found, SkTDDrawableArray**grandList) {
*parent = nullptr;
*list = &fDrawList;
*grandList = &fDrawList;
return SearchForMatch(match, list, parent, found, grandList);
}
void SkDisplayList::hardReset() {
fDrawList.reset();
fActiveList.reset();
}
bool SkDisplayList::onIRect(const SkIRect& r) {
fBounds = r;
return fDrawBounds;
}
int SkDisplayList::SearchForMatch(SkADrawable* match, SkTDDrawableArray** list,
SkGroup** parent, SkGroup** found, SkTDDrawableArray**grandList) {
*found = nullptr;
for (int index = 0; index < (*list)->count(); index++) {
SkADrawable* draw = (**list)[index];
if (draw == match)
return index;
if (draw->isApply()) {
SkApply* apply = (SkApply*) draw;
if (apply->scope == match)
return index;
if (apply->scope->isGroup() && SearchGroupForMatch(apply->scope, match, list, parent, found, grandList, index))
return index;
if (apply->mode == SkApply::kMode_create) {
for (SkADrawable** ptr = apply->fScopes.begin(); ptr < apply->fScopes.end(); ptr++) {
SkADrawable* scope = *ptr;
if (scope == match)
return index;
//perhaps should call SearchGroupForMatch here as well (on scope)
}
}
}
if (draw->isGroup() && SearchGroupForMatch(draw, match, list, parent, found, grandList, index))
return index;
}
return -1;
}
bool SkDisplayList::SearchGroupForMatch(SkADrawable* draw, SkADrawable* match, SkTDDrawableArray** list,
SkGroup** parent, SkGroup** found, SkTDDrawableArray** grandList, int &index) {
SkGroup* group = (SkGroup*) draw;
if (group->getOriginal() == match)
return true;
SkTDDrawableArray* saveList = *list;
int groupIndex = group->findGroup(match, list, parent, found, grandList);
if (groupIndex >= 0) {
*found = group;
index = groupIndex;
return true;
}
*list = saveList;
return false;
}
void SkDisplayList::reset() {
for (int index = 0; index < fDrawList.count(); index++) {
SkADrawable* draw = fDrawList[index];
if (draw->isApply() == false)
continue;
SkApply* apply = (SkApply*) draw;
apply->reset();
}
}
void SkDisplayList::remove(SkActive* active) {
int index = fActiveList.find(active);
SkASSERT(index >= 0);
fActiveList.remove(index); // !!! could use shuffle instead
SkASSERT(fActiveList.find(active) < 0);
}
#ifdef SK_DUMP_ENABLED
int SkDisplayList::fDumpIndex;
int SkDisplayList::fIndent;
void SkDisplayList::dump(SkAnimateMaker* maker) {
fIndent = 0;
dumpInner(maker);
}
void SkDisplayList::dumpInner(SkAnimateMaker* maker) {
for (int index = 0; index < fDrawList.count(); index++) {
fDumpIndex = index;
fDrawList[fDumpIndex]->dump(maker);
}
}
#endif
#ifdef SK_DEBUG
void SkDisplayList::validate() {
for (int index = 0; index < fDrawList.count(); index++) {
SkADrawable* draw = fDrawList[index];
draw->validate();
}
}
#endif
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