blob: 3a7a1a6330db167fdcd1a95208a50c91a8893361 [file] [log] [blame]
#include "SkCanvas.h"
#include "SkDevice.h"
#include "SkGpuCanvas.h"
#include "SkGraphics.h"
#include "SkImageEncoder.h"
#include "SkPaint.h"
#include "SkPicture.h"
#include "SkStream.h"
#include "SkTime.h"
#include "SkWindow.h"
#include "SampleCode.h"
#include "GrContext.h"
#include "SkTouchGesture.h"
//#define DEFAULT_TO_GPU
extern SkView* create_overview(int, const SkViewFactory[]);
#define SK_SUPPORT_GL
#define ANIMATING_EVENTTYPE "nextSample"
#define ANIMATING_DELAY 750
#ifdef SK_SUPPORT_GL
#include "GrGLConfig.h"
#endif
SkViewRegister* SkViewRegister::gHead;
SkViewRegister::SkViewRegister(SkViewFactory fact) : fFact(fact) {
static bool gOnce;
if (!gOnce) {
gHead = NULL;
gOnce = true;
}
fChain = gHead;
gHead = this;
}
#if defined(SK_SUPPORT_GL)
#define SK_USE_SHADERS
#endif
#ifdef SK_BUILD_FOR_MAC
#include <CoreFoundation/CoreFoundation.h>
#include <CoreFoundation/CFURLAccess.h>
static void testpdf() {
CFStringRef path = CFStringCreateWithCString(NULL, "/test.pdf",
kCFStringEncodingUTF8);
CFURLRef url = CFURLCreateWithFileSystemPath(NULL, path,
kCFURLPOSIXPathStyle,
false);
CFRelease(path);
CGRect box = CGRectMake(0, 0, 8*72, 10*72);
CGContextRef cg = CGPDFContextCreateWithURL(url, &box, NULL);
CFRelease(url);
CGContextBeginPage(cg, &box);
CGRect r = CGRectMake(10, 10, 40 + 0.5, 50 + 0.5);
CGContextFillEllipseInRect(cg, r);
CGContextEndPage(cg);
CGContextRelease(cg);
if (false) {
SkBitmap bm;
bm.setConfig(SkBitmap::kA8_Config, 64, 64);
bm.allocPixels();
bm.eraseColor(0);
SkCanvas canvas(bm);
}
}
#endif
//////////////////////////////////////////////////////////////////////////////
#include "SkDrawFilter.h"
class LCDTextDrawFilter : public SkDrawFilter {
public:
enum Mode {
kNeutral_Mode,
kForceOn_Mode,
kForceOff_Mode
};
LCDTextDrawFilter(Mode mode) : fMode(mode) {}
virtual bool filter(SkCanvas*, SkPaint* paint, Type t) {
if (kText_Type == t && kNeutral_Mode != fMode) {
fPrevLCD = paint->isLCDRenderText();
paint->setLCDRenderText(kForceOn_Mode == fMode);
}
return true;
}
/** If filter() returned true, then restore() will be called to restore the
canvas/paint to their previous states
*/
virtual void restore(SkCanvas*, SkPaint* paint, Type t) {
if (kText_Type == t && kNeutral_Mode != fMode) {
paint->setLCDRenderText(fPrevLCD);
}
}
private:
Mode fMode;
bool fPrevLCD;
};
LCDTextDrawFilter::Mode cycle_lcdmode(LCDTextDrawFilter::Mode mode) {
static const LCDTextDrawFilter::Mode gCycle[] = {
/* kNeutral_Mode -> */ LCDTextDrawFilter::kForceOn_Mode,
/* kForceOn_Mode -> */ LCDTextDrawFilter::kForceOff_Mode,
/* kForceOff_Mode -> */ LCDTextDrawFilter::kNeutral_Mode
};
return gCycle[mode];
}
//////////////////////////////////////////////////////////////////////////////
static const char gCharEvtName[] = "SampleCode_Char_Event";
static const char gKeyEvtName[] = "SampleCode_Key_Event";
static const char gTitleEvtName[] = "SampleCode_Title_Event";
static const char gPrefSizeEvtName[] = "SampleCode_PrefSize_Event";
static const char gFastTextEvtName[] = "SampleCode_FastText_Event";
bool SampleCode::CharQ(const SkEvent& evt, SkUnichar* outUni) {
if (evt.isType(gCharEvtName, sizeof(gCharEvtName) - 1)) {
if (outUni) {
*outUni = evt.getFast32();
}
return true;
}
return false;
}
bool SampleCode::KeyQ(const SkEvent& evt, SkKey* outKey) {
if (evt.isType(gKeyEvtName, sizeof(gKeyEvtName) - 1)) {
if (outKey) {
*outKey = (SkKey)evt.getFast32();
}
return true;
}
return false;
}
bool SampleCode::TitleQ(const SkEvent& evt) {
return evt.isType(gTitleEvtName, sizeof(gTitleEvtName) - 1);
}
void SampleCode::TitleR(SkEvent* evt, const char title[]) {
SkASSERT(evt && TitleQ(*evt));
evt->setString(gTitleEvtName, title);
}
bool SampleCode::PrefSizeQ(const SkEvent& evt) {
return evt.isType(gPrefSizeEvtName, sizeof(gPrefSizeEvtName) - 1);
}
void SampleCode::PrefSizeR(SkEvent* evt, SkScalar width, SkScalar height) {
SkASSERT(evt && PrefSizeQ(*evt));
SkScalar size[2];
size[0] = width;
size[1] = height;
evt->setScalars(gPrefSizeEvtName, 2, size);
}
bool SampleCode::FastTextQ(const SkEvent& evt) {
return evt.isType(gFastTextEvtName, sizeof(gFastTextEvtName) - 1);
}
///////////////////////////////////////////////////////////////////////////////
static SkMSec gAnimTime;
static SkMSec gAnimTimePrev;
SkMSec SampleCode::GetAnimTime() { return gAnimTime; }
SkMSec SampleCode::GetAnimTimeDelta() { return gAnimTime - gAnimTimePrev; }
SkScalar SampleCode::GetAnimSecondsDelta() {
return SkDoubleToScalar(GetAnimTimeDelta() / 1000.0);
}
SkScalar SampleCode::GetAnimScalar(SkScalar speed, SkScalar period) {
// since gAnimTime can be up to 32 bits, we can't convert it to a float
// or we'll lose the low bits. Hence we use doubles for the intermediate
// calculations
double seconds = (double)gAnimTime / 1000.0;
double value = SkScalarToDouble(speed) * seconds;
if (period) {
value = ::fmod(value, SkScalarToDouble(period));
}
return SkDoubleToScalar(value);
}
//////////////////////////////////////////////////////////////////////////////
static SkView* curr_view(SkWindow* wind) {
SkView::F2BIter iter(wind);
return iter.next();
}
class SampleWindow : public SkOSWindow {
SkTDArray<SkViewFactory> fSamples;
public:
SampleWindow(void* hwnd);
virtual ~SampleWindow();
virtual void draw(SkCanvas* canvas);
protected:
virtual void onDraw(SkCanvas* canvas);
virtual bool onHandleKey(SkKey key);
virtual bool onHandleChar(SkUnichar);
virtual void onSizeChange();
virtual SkCanvas* beforeChildren(SkCanvas*);
virtual void afterChildren(SkCanvas*);
virtual void beforeChild(SkView* child, SkCanvas* canvas);
virtual void afterChild(SkView* child, SkCanvas* canvas);
virtual bool onEvent(const SkEvent& evt);
virtual bool onQuery(SkEvent* evt);
virtual bool onClick(Click* click);
virtual Click* onFindClickHandler(SkScalar x, SkScalar y);
#if 0
virtual bool handleChar(SkUnichar uni);
virtual bool handleEvent(const SkEvent& evt);
virtual bool handleKey(SkKey key);
virtual bool handleKeyUp(SkKey key);
virtual bool onClick(Click* click);
virtual Click* onFindClickHandler(SkScalar x, SkScalar y);
virtual bool onHandleKeyUp(SkKey key);
#endif
private:
int fCurrIndex;
SkPicture* fPicture;
SkGpuCanvas* fGpuCanvas;
GrContext* fGrContext;
SkPath fClipPath;
SkTouchGesture fGesture;
enum CanvasType {
kRaster_CanvasType,
kPicture_CanvasType,
kGPU_CanvasType
};
CanvasType fCanvasType;
bool fUseClip;
bool fNClip;
bool fRepeatDrawing;
bool fAnimating;
bool fRotate;
bool fScale;
bool fRequestGrabImage;
LCDTextDrawFilter::Mode fLCDMode;
int fScrollTestX, fScrollTestY;
bool make3DReady();
void loadView(SkView*);
void updateTitle();
bool nextSample();
void postAnimatingEvent() {
if (fAnimating) {
SkEvent* evt = new SkEvent(ANIMATING_EVENTTYPE);
evt->post(this->getSinkID(), ANIMATING_DELAY);
}
}
static CanvasType cycle_canvastype(CanvasType);
typedef SkOSWindow INHERITED;
};
bool SampleWindow::make3DReady() {
#if defined(SK_SUPPORT_GL)
if (attachGL()) {
if (NULL == fGrContext) {
#if defined(SK_USE_SHADERS)
fGrContext = GrContext::Create(GrGpu::kOpenGL_Shaders_Engine, NULL);
#else
fGrContext = GrContext::Create(GrGpu::kOpenGL_Fixed_Engine, NULL);
#endif
}
if (NULL != fGrContext) {
return true;
} else {
detachGL();
}
}
#endif
SkDebugf("Failed to setup 3D");
return false;
}
SampleWindow::CanvasType SampleWindow::cycle_canvastype(CanvasType ct) {
static const CanvasType gCT[] = {
kPicture_CanvasType,
kGPU_CanvasType,
kRaster_CanvasType
};
return gCT[ct];
}
SampleWindow::SampleWindow(void* hwnd) : INHERITED(hwnd) {
fPicture = NULL;
fGpuCanvas = NULL;
fGrContext = NULL;
#ifdef DEFAULT_TO_GPU
fCanvasType = kGPU_CanvasType;
#else
fCanvasType = kRaster_CanvasType;
#endif
fUseClip = false;
fNClip = false;
fRepeatDrawing = false;
fAnimating = false;
fRotate = false;
fScale = false;
fRequestGrabImage = false;
fLCDMode = LCDTextDrawFilter::kNeutral_Mode;
fScrollTestX = fScrollTestY = 0;
// this->setConfig(SkBitmap::kRGB_565_Config);
this->setConfig(SkBitmap::kARGB_8888_Config);
this->setVisibleP(true);
this->setClipToBounds(false);
{
const SkViewRegister* reg = SkViewRegister::Head();
while (reg) {
*fSamples.append() = reg->factory();
reg = reg->next();
}
}
fCurrIndex = 0;
this->loadView(fSamples[fCurrIndex]());
#ifdef SK_BUILD_FOR_MAC
testpdf();
#endif
}
SampleWindow::~SampleWindow() {
delete fPicture;
delete fGpuCanvas;
if (NULL != fGrContext) {
fGrContext->unref();
}
}
static SkBitmap capture_bitmap(SkCanvas* canvas) {
SkBitmap bm;
const SkBitmap& src = canvas->getDevice()->accessBitmap(false);
src.copyTo(&bm, src.config());
return bm;
}
static bool bitmap_diff(SkCanvas* canvas, const SkBitmap& orig,
SkBitmap* diff) {
const SkBitmap& src = canvas->getDevice()->accessBitmap(false);
SkAutoLockPixels alp0(src);
SkAutoLockPixels alp1(orig);
for (int y = 0; y < src.height(); y++) {
const void* srcP = src.getAddr(0, y);
const void* origP = orig.getAddr(0, y);
size_t bytes = src.width() * src.bytesPerPixel();
if (memcmp(srcP, origP, bytes)) {
SkDebugf("---------- difference on line %d\n", y);
return true;
}
}
return false;
}
#define XCLIP_N 8
#define YCLIP_N 8
void SampleWindow::draw(SkCanvas* canvas) {
// update the animation time
gAnimTimePrev = gAnimTime;
gAnimTime = SkTime::GetMSecs();
// Apply any gesture matrix
if (true) {
const SkMatrix& localM = fGesture.localM();
if (localM.getType() & SkMatrix::kScale_Mask) {
canvas->setExternalMatrix(&localM);
}
canvas->concat(localM);
canvas->concat(fGesture.globalM());
if (fGesture.isActive()) {
this->inval(NULL);
}
}
if (fNClip) {
this->INHERITED::draw(canvas);
SkBitmap orig = capture_bitmap(canvas);
const SkScalar w = this->width();
const SkScalar h = this->height();
const SkScalar cw = w / XCLIP_N;
const SkScalar ch = h / YCLIP_N;
for (int y = 0; y < YCLIP_N; y++) {
SkRect r;
r.fTop = y * ch;
r.fBottom = (y + 1) * ch;
if (y == YCLIP_N - 1) {
r.fBottom = h;
}
for (int x = 0; x < XCLIP_N; x++) {
SkAutoCanvasRestore acr(canvas, true);
r.fLeft = x * cw;
r.fRight = (x + 1) * cw;
if (x == XCLIP_N - 1) {
r.fRight = w;
}
canvas->clipRect(r);
this->INHERITED::draw(canvas);
}
}
SkBitmap diff;
if (bitmap_diff(canvas, orig, &diff)) {
}
} else {
this->INHERITED::draw(canvas);
}
}
void SampleWindow::onDraw(SkCanvas* canvas) {
if (fRepeatDrawing) {
this->inval(NULL);
}
}
#include "SkColorPriv.h"
static void reverseRedAndBlue(const SkBitmap& bm) {
SkASSERT(bm.config() == SkBitmap::kARGB_8888_Config);
uint8_t* p = (uint8_t*)bm.getPixels();
uint8_t* stop = p + bm.getSize();
while (p < stop) {
// swap red/blue (to go from ARGB(int) to RGBA(memory) and premultiply
unsigned scale = SkAlpha255To256(p[3]);
unsigned r = p[2];
unsigned b = p[0];
p[0] = SkAlphaMul(r, scale);
p[1] = SkAlphaMul(p[1], scale);
p[2] = SkAlphaMul(b, scale);
p += 4;
}
}
SkCanvas* SampleWindow::beforeChildren(SkCanvas* canvas) {
SkIPoint viewport;
bool alreadyGPU = canvas->getViewport(&viewport);
if (kGPU_CanvasType != fCanvasType) {
#ifdef SK_SUPPORT_GL
detachGL();
#endif
}
switch (fCanvasType) {
case kRaster_CanvasType:
canvas = this->INHERITED::beforeChildren(canvas);
break;
case kPicture_CanvasType:
fPicture = new SkPicture;
canvas = fPicture->beginRecording(9999, 9999);
break;
case kGPU_CanvasType: {
if (!alreadyGPU && make3DReady()) {
SkDevice* device = canvas->getDevice();
const SkBitmap& bitmap = device->accessBitmap(true);
GrRenderTarget* renderTarget;
renderTarget = fGrContext->createRenderTargetFrom3DApiState();
fGpuCanvas = new SkGpuCanvas(fGrContext, renderTarget);
renderTarget->unref();
device = fGpuCanvas->createDevice(SkBitmap::kARGB_8888_Config,
bitmap.width(), bitmap.height(),
false, false);
fGpuCanvas->setDevice(device)->unref();
canvas = fGpuCanvas;
} else {
canvas = this->INHERITED::beforeChildren(canvas);
}
break;
}
}
if (fUseClip) {
canvas->drawColor(0xFFFF88FF);
canvas->clipPath(fClipPath);
}
return canvas;
}
static void paint_rgn(const SkBitmap& bm, const SkIRect& r,
const SkRegion& rgn) {
SkCanvas canvas(bm);
SkRegion inval(rgn);
inval.translate(r.fLeft, r.fTop);
canvas.clipRegion(inval);
canvas.drawColor(0xFFFF8080);
}
void SampleWindow::afterChildren(SkCanvas* orig) {
if (fRequestGrabImage) {
fRequestGrabImage = false;
SkCanvas* canvas = fGpuCanvas ? fGpuCanvas : orig;
SkDevice* device = canvas->getDevice();
SkBitmap bitmap;
SkIRect bounds = {
0, 0,
SkScalarRound(this->width()),
SkScalarRound(this->height())
};
if (device->readPixels(bounds, &bitmap)) {
static int gSampleGrabCounter;
SkString name;
name.printf("sample_grab_%d", gSampleGrabCounter++);
SkImageEncoder::EncodeFile(name.c_str(), bitmap,
SkImageEncoder::kPNG_Type, 100);
}
}
switch (fCanvasType) {
case kRaster_CanvasType:
break;
case kPicture_CanvasType:
if (true) {
SkPicture* pict = new SkPicture(*fPicture);
fPicture->unref();
orig->drawPicture(*pict);
pict->unref();
} else if (true) {
SkDynamicMemoryWStream ostream;
fPicture->serialize(&ostream);
fPicture->unref();
SkMemoryStream istream(ostream.getStream(), ostream.getOffset());
SkPicture pict(&istream);
orig->drawPicture(pict);
} else {
fPicture->draw(orig);
fPicture->unref();
}
fPicture = NULL;
break;
#ifdef SK_SUPPORT_GL
case kGPU_CanvasType:
delete fGpuCanvas;
fGpuCanvas = NULL;
presentGL();
break;
#endif
}
// if ((fScrollTestX | fScrollTestY) != 0)
if (false) {
const SkBitmap& bm = orig->getDevice()->accessBitmap(true);
int dx = fScrollTestX * 7;
int dy = fScrollTestY * 7;
SkIRect r;
SkRegion inval;
r.set(50, 50, 50+100, 50+100);
bm.scrollRect(&r, dx, dy, &inval);
paint_rgn(bm, r, inval);
}
}
void SampleWindow::beforeChild(SkView* child, SkCanvas* canvas) {
if (fScale) {
SkScalar scale = SK_Scalar1 * 7 / 10;
SkScalar cx = this->width() / 2;
SkScalar cy = this->height() / 2;
canvas->translate(cx, cy);
canvas->scale(scale, scale);
canvas->translate(-cx, -cy);
}
if (fRotate) {
SkScalar cx = this->width() / 2;
SkScalar cy = this->height() / 2;
canvas->translate(cx, cy);
canvas->rotate(SkIntToScalar(30));
canvas->translate(-cx, -cy);
}
if (LCDTextDrawFilter::kNeutral_Mode != fLCDMode) {
canvas->setDrawFilter(new LCDTextDrawFilter(fLCDMode))->unref();
}
}
void SampleWindow::afterChild(SkView* child, SkCanvas* canvas) {
canvas->setDrawFilter(NULL);
}
static SkBitmap::Config gConfigCycle[] = {
SkBitmap::kNo_Config, // none -> none
SkBitmap::kNo_Config, // a1 -> none
SkBitmap::kNo_Config, // a8 -> none
SkBitmap::kNo_Config, // index8 -> none
SkBitmap::kARGB_4444_Config, // 565 -> 4444
SkBitmap::kARGB_8888_Config, // 4444 -> 8888
SkBitmap::kRGB_565_Config // 8888 -> 565
};
static SkBitmap::Config cycle_configs(SkBitmap::Config c) {
return gConfigCycle[c];
}
bool SampleWindow::nextSample() {
fCurrIndex = (fCurrIndex + 1) % fSamples.count();
this->loadView(fSamples[fCurrIndex]());
return true;
}
bool SampleWindow::onEvent(const SkEvent& evt) {
if (evt.isType(ANIMATING_EVENTTYPE)) {
if (fAnimating) {
this->nextSample();
this->postAnimatingEvent();
}
return true;
}
if (evt.isType("set-curr-index")) {
fCurrIndex = evt.getFast32() % fSamples.count();
this->loadView(fSamples[fCurrIndex]());
return true;
}
return this->INHERITED::onEvent(evt);
}
bool SampleWindow::onQuery(SkEvent* query) {
if (query->isType("get-slide-count")) {
query->setFast32(fSamples.count());
return true;
}
if (query->isType("get-slide-title")) {
SkView* view = fSamples[query->getFast32()]();
SkEvent evt(gTitleEvtName);
if (view->doQuery(&evt)) {
query->setString("title", evt.findString(gTitleEvtName));
}
SkSafeUnref(view);
return true;
}
if (query->isType("use-fast-text")) {
SkEvent evt(gFastTextEvtName);
return curr_view(this)->doQuery(&evt);
}
return this->INHERITED::onQuery(query);
}
static void cleanup_for_filename(SkString* name) {
char* str = name->writable_str();
for (size_t i = 0; i < name->size(); i++) {
switch (str[i]) {
case ':': str[i] = '-'; break;
case '/': str[i] = '-'; break;
case ' ': str[i] = '_'; break;
default: break;
}
}
}
bool SampleWindow::onHandleChar(SkUnichar uni) {
{
SkView* view = curr_view(this);
if (view) {
SkEvent evt(gCharEvtName);
evt.setFast32(uni);
if (view->doQuery(&evt)) {
return true;
}
}
}
int dx = 0xFF;
int dy = 0xFF;
switch (uni) {
case '5': dx = 0; dy = 0; break;
case '8': dx = 0; dy = -1; break;
case '6': dx = 1; dy = 0; break;
case '2': dx = 0; dy = 1; break;
case '4': dx = -1; dy = 0; break;
case '7': dx = -1; dy = -1; break;
case '9': dx = 1; dy = -1; break;
case '3': dx = 1; dy = 1; break;
case '1': dx = -1; dy = 1; break;
default:
break;
}
if (0xFF != dx && 0xFF != dy) {
if ((dx | dy) == 0) {
fScrollTestX = fScrollTestY = 0;
} else {
fScrollTestX += dx;
fScrollTestY += dy;
}
this->inval(NULL);
return true;
}
switch (uni) {
case 'a':
fAnimating = !fAnimating;
this->postAnimatingEvent();
this->updateTitle();
return true;
case 'f': {
const char* title = this->getTitle();
if (title[0] == 0) {
title = "sampleapp";
}
SkString name(title);
cleanup_for_filename(&name);
name.append(".png");
if (SkImageEncoder::EncodeFile(name.c_str(), this->getBitmap(),
SkImageEncoder::kPNG_Type, 100)) {
SkDebugf("Created %s\n", name.c_str());
}
return true;
}
case 'r':
fRotate = !fRotate;
this->inval(NULL);
this->updateTitle();
return true;
case 's':
fScale = !fScale;
this->inval(NULL);
this->updateTitle();
return true;
case 'c':
fUseClip = !fUseClip;
this->inval(NULL);
this->updateTitle();
return true;
case 'd':
SkGraphics::SetFontCacheUsed(0);
return true;
case 'g':
fRequestGrabImage = true;
this->inval(NULL);
break;
case 'l':
fLCDMode = cycle_lcdmode(fLCDMode);
this->updateTitle();
this->inval(NULL);
break;
default:
break;
}
return this->INHERITED::onHandleChar(uni);
}
#include "SkDumpCanvas.h"
bool SampleWindow::onHandleKey(SkKey key) {
{
SkView* view = curr_view(this);
if (view) {
SkEvent evt(gKeyEvtName);
evt.setFast32(key);
if (view->doQuery(&evt)) {
return true;
}
}
}
switch (key) {
case kRight_SkKey:
if (this->nextSample()) {
return true;
}
break;
case kLeft_SkKey:
fCanvasType = cycle_canvastype(fCanvasType);
this->updateTitle();
this->inval(NULL);
return true;
case kUp_SkKey:
fNClip = !fNClip;
this->updateTitle();
this->inval(NULL);
return true;
case kDown_SkKey:
this->setConfig(cycle_configs(this->getBitmap().config()));
this->updateTitle();
return true;
case kOK_SkKey:
if (false) {
SkDebugfDumper dumper;
SkDumpCanvas dc(&dumper);
this->draw(&dc);
} else {
fRepeatDrawing = !fRepeatDrawing;
if (fRepeatDrawing) {
this->inval(NULL);
}
}
return true;
case kBack_SkKey:
this->loadView(NULL);
return true;
default:
break;
}
return this->INHERITED::onHandleKey(key);
}
///////////////////////////////////////////////////////////////////////////////
static const char gGestureClickType[] = "GestureClickType";
class GestureClick : public SkView::Click {
public:
GestureClick(SkView* target) : SkView::Click(target) {
this->setType(gGestureClickType);
}
static bool IsGesture(Click* click) {
return click->isType(gGestureClickType);
}
};
SkView::Click* SampleWindow::onFindClickHandler(SkScalar x, SkScalar y) {
return new GestureClick(this);
}
bool SampleWindow::onClick(Click* click) {
if (GestureClick::IsGesture(click)) {
float x = SkScalarToFloat(click->fCurr.fX);
float y = SkScalarToFloat(click->fCurr.fY);
switch (click->fState) {
case SkView::Click::kDown_State:
fGesture.touchBegin(click, x, y);
break;
case SkView::Click::kMoved_State:
fGesture.touchMoved(click, x, y);
this->inval(NULL);
break;
case SkView::Click::kUp_State:
fGesture.touchEnd(click);
this->inval(NULL);
break;
}
return true;
}
return false;
}
///////////////////////////////////////////////////////////////////////////////
void SampleWindow::loadView(SkView* view) {
SkView::F2BIter iter(this);
SkView* prev = iter.next();
if (prev) {
prev->detachFromParent();
}
if (NULL == view) {
view = create_overview(fSamples.count(), fSamples.begin());
}
view->setVisibleP(true);
view->setClipToBounds(false);
this->attachChildToFront(view)->unref();
view->setSize(this->width(), this->height());
this->updateTitle();
}
static const char* gConfigNames[] = {
"unknown config",
"A1",
"A8",
"Index8",
"565",
"4444",
"8888"
};
static const char* configToString(SkBitmap::Config c) {
return gConfigNames[c];
}
static const char* gCanvasTypePrefix[] = {
"raster: ",
"picture: ",
"opengl: "
};
void SampleWindow::updateTitle() {
SkString title;
SkView::F2BIter iter(this);
SkView* view = iter.next();
SkEvent evt(gTitleEvtName);
if (view->doQuery(&evt)) {
title.set(evt.findString(gTitleEvtName));
}
if (title.size() == 0) {
title.set("<unknown>");
}
title.prepend(gCanvasTypePrefix[fCanvasType]);
title.prepend(" ");
title.prepend(configToString(this->getBitmap().config()));
if (fAnimating) {
title.prepend("<A> ");
}
if (fScale) {
title.prepend("<S> ");
}
if (fRotate) {
title.prepend("<R> ");
}
if (fNClip) {
title.prepend("<C> ");
}
if (LCDTextDrawFilter::kForceOn_Mode == fLCDMode) {
title.prepend("LCD ");
} else if (LCDTextDrawFilter::kForceOff_Mode == fLCDMode) {
title.prepend("lcd ");
}
this->setTitle(title.c_str());
}
void SampleWindow::onSizeChange() {
this->INHERITED::onSizeChange();
SkView::F2BIter iter(this);
SkView* view = iter.next();
view->setSize(this->width(), this->height());
// rebuild our clippath
{
const SkScalar W = this->width();
const SkScalar H = this->height();
fClipPath.reset();
#if 0
for (SkScalar y = SK_Scalar1; y < H; y += SkIntToScalar(32)) {
SkRect r;
r.set(SK_Scalar1, y, SkIntToScalar(30), y + SkIntToScalar(30));
for (; r.fLeft < W; r.offset(SkIntToScalar(32), 0))
fClipPath.addRect(r);
}
#else
SkRect r;
r.set(0, 0, W, H);
fClipPath.addRect(r, SkPath::kCCW_Direction);
r.set(W/4, H/4, W*3/4, H*3/4);
fClipPath.addRect(r, SkPath::kCW_Direction);
#endif
}
this->updateTitle(); // to refresh our config
}
///////////////////////////////////////////////////////////////////////////////
template <typename T> void SkTBSort(T array[], int count) {
for (int i = 1; i < count - 1; i++) {
bool didSwap = false;
for (int j = count - 1; j > i; --j) {
if (array[j] < array[j-1]) {
T tmp(array[j-1]);
array[j-1] = array[j];
array[j] = tmp;
didSwap = true;
}
}
if (!didSwap) {
break;
}
}
for (int k = 0; k < count - 1; k++) {
SkASSERT(!(array[k+1] < array[k]));
}
}
#include "SkRandom.h"
static void rand_rect(SkIRect* rect, SkRandom& rand) {
int bits = 8;
int shift = 32 - bits;
rect->set(rand.nextU() >> shift, rand.nextU() >> shift,
rand.nextU() >> shift, rand.nextU() >> shift);
rect->sort();
}
static void dumpRect(const SkIRect& r) {
SkDebugf(" { %d, %d, %d, %d },\n",
r.fLeft, r.fTop,
r.fRight, r.fBottom);
}
static void test_rects(const SkIRect rect[], int count) {
SkRegion rgn0, rgn1;
for (int i = 0; i < count; i++) {
rgn0.op(rect[i], SkRegion::kUnion_Op);
// dumpRect(rect[i]);
}
rgn1.setRects(rect, count);
if (rgn0 != rgn1) {
SkDebugf("\n");
for (int i = 0; i < count; i++) {
dumpRect(rect[i]);
}
SkDebugf("\n");
}
}
static void test() {
size_t i;
const SkIRect r0[] = {
{ 0, 0, 1, 1 },
{ 2, 2, 3, 3 },
};
const SkIRect r1[] = {
{ 0, 0, 1, 3 },
{ 1, 1, 2, 2 },
{ 2, 0, 3, 3 },
};
const SkIRect r2[] = {
{ 0, 0, 1, 2 },
{ 2, 1, 3, 3 },
{ 4, 0, 5, 1 },
{ 6, 0, 7, 4 },
};
static const struct {
const SkIRect* fRects;
int fCount;
} gRecs[] = {
{ r0, SK_ARRAY_COUNT(r0) },
{ r1, SK_ARRAY_COUNT(r1) },
{ r2, SK_ARRAY_COUNT(r2) },
};
for (i = 0; i < SK_ARRAY_COUNT(gRecs); i++) {
test_rects(gRecs[i].fRects, gRecs[i].fCount);
}
SkRandom rand;
for (i = 0; i < 10000; i++) {
SkRegion rgn0, rgn1;
const int N = 8;
SkIRect rect[N];
for (int j = 0; j < N; j++) {
rand_rect(&rect[j], rand);
}
test_rects(rect, N);
}
}
SkOSWindow* create_sk_window(void* hwnd) {
// test();
return new SampleWindow(hwnd);
}
void get_preferred_size(int* x, int* y, int* width, int* height) {
*x = 10;
*y = 50;
*width = 640;
*height = 480;
}
void application_init() {
// setenv("ANDROID_ROOT", "../../../data", 0);
#ifdef SK_BUILD_FOR_MAC
setenv("ANDROID_ROOT", "/android/device/data", 0);
#endif
SkGraphics::Init();
SkEvent::Init();
}
void application_term() {
SkEvent::Term();
SkGraphics::Term();
}