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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SampleCode.h"
#include "SkView.h"
#include "SkCanvas.h"
#include "SkAnimator.h"
#include "SkStream.h"
#include "SkDOM.h"
///////////////////////////////////////////////////////////////////////////////
class SkAnimatorView : public SkView {
public:
SkAnimatorView();
virtual ~SkAnimatorView();
void setURIBase(const char dir[]);
SkAnimator* getAnimator() const { return fAnimator; }
bool decodeFile(const char path[]);
bool decodeMemory(const void* buffer, size_t size);
bool decodeStream(SkStream* stream);
protected:
// overrides
virtual void onDraw(SkCanvas*);
virtual bool onQuery(SkEvent* evt);
private:
SkString fBaseURI;
SkAnimator* fAnimator;
typedef SkView INHERITED;
};
SkAnimatorView::SkAnimatorView() : fAnimator(NULL) {}
SkAnimatorView::~SkAnimatorView() {
delete fAnimator;
}
void SkAnimatorView::setURIBase(const char dir[]) {
fBaseURI.set(dir);
}
bool SkAnimatorView::decodeFile(const char path[]) {
SkFILEStream* is = new SkFILEStream(path);
SkAutoUnref aur(is);
return is->isValid() && this->decodeStream(is);
}
bool SkAnimatorView::decodeMemory(const void* buffer, size_t size) {
SkMemoryStream* is = new SkMemoryStream(buffer, size);
SkAutoUnref aur(is);
return this->decodeStream(is);
}
static const SkDOMNode* find_nodeID(const SkDOM& dom,
const SkDOMNode* node, const char name[]) {
if (NULL == node) {
node = dom.getRootNode();
}
do {
const char* idval = dom.findAttr(node, "id");
if (idval && !strcmp(idval, name)) {
return node;
}
const SkDOMNode* child = dom.getFirstChild(node);
if (child) {
const SkDOMNode* found = find_nodeID(dom, child, name);
if (found) {
return found;
}
}
} while ((node = dom.getNextSibling(node)) != NULL);
return NULL;
}
bool SkAnimatorView::decodeStream(SkStream* stream) {
delete fAnimator;
fAnimator = new SkAnimator;
fAnimator->setURIBase(fBaseURI.c_str());
#if 0
if (!fAnimator->decodeStream(stream)) {
delete fAnimator;
fAnimator = NULL;
return false;
}
#else
size_t len = stream->getLength();
char* text = (char*)sk_malloc_throw(len);
stream->read(text, len);
SkDOM dom;
const SkDOM::Node* root = dom.build(text, len);
if (NULL == root) {
return false;
}
if (!fAnimator->decodeDOM(dom, root)) {
delete fAnimator;
fAnimator = NULL;
return false;
}
for (int i = 0; i <= 10; i++) {
SkString name("glyph");
name.appendS32(i);
const SkDOM::Node* node = find_nodeID(dom, NULL, name.c_str());
SkASSERT(node);
SkRect r;
dom.findScalar(node, "left", &r.fLeft);
dom.findScalar(node, "top", &r.fTop);
dom.findScalar(node, "width", &r.fRight); r.fRight += r.fLeft;
dom.findScalar(node, "height", &r.fBottom); r.fBottom += r.fTop;
SkDebugf("--- %s [%g %g %g %g]\n", name.c_str(),
r.fLeft, r.fTop, r.fRight, r.fBottom);
}
#endif
return true;
}
#include "SkTime.h"
void SkAnimatorView::onDraw(SkCanvas* canvas) {
canvas->drawColor(SK_ColorWHITE);
if (fAnimator) {
fAnimator->draw(canvas, 0);
#if 0
canvas->save();
canvas->translate(120, 30);
canvas->scale(0.5, 0.5);
fAnimator->draw(canvas, 0);
canvas->restore();
canvas->save();
canvas->translate(190, 40);
canvas->scale(0.25, 0.25);
fAnimator->draw(canvas, 0);
canvas->restore();
this->inval(NULL);
#endif
}
}
bool SkAnimatorView::onQuery(SkEvent* evt) {
if (SampleCode::TitleQ(*evt)) {
SampleCode::TitleR(evt, "Animator");
return true;
}
return this->INHERITED::onQuery(evt);
}
//////////////////////////////////////////////////////////////////////////////
static SkView* MyFactory() {
SkAnimatorView* av = new SkAnimatorView;
// av->decodeFile("/skimages/test.xml");
#if 0
av->setURIBase("/skia/trunk/animations/");
av->decodeFile("/skia/trunk/animations/checkbox.xml");
#else
av->setURIBase("/");
av->decodeFile("/testanim.txt");
#endif
return av;
}
static SkViewRegister reg(MyFactory);
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