зеркало из https://github.com/mozilla/moz-skia.git
322 строки
8.9 KiB
C++
322 строки
8.9 KiB
C++
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SampleCode.h"
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#include "SkView.h"
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#include "SkCanvas.h"
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#include "SkGradientShader.h"
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#include "SkGraphics.h"
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#include "SkImageDecoder.h"
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#include "SkPath.h"
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#include "SkRegion.h"
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#include "SkShader.h"
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#include "SkUtils.h"
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#include "SkXfermode.h"
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#include "SkComposeShader.h"
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#include "SkColorPriv.h"
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#include "SkColorFilter.h"
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#include "SkTime.h"
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#include "SkTypeface.h"
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#include "SkImageRef_GlobalPool.h"
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#include "SkOSFile.h"
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#include "SkStream.h"
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#include "SkBlurDrawLooper.h"
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#include "SkColorMatrixFilter.h"
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static void drawmarshmallow(SkCanvas* canvas) {
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SkBitmap bitmap;
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SkPaint paint;
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SkRect r;
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SkMatrix m;
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SkImageDecoder::DecodeFile("/Users/reed/Downloads/3elfs.jpg", &bitmap);
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if (!bitmap.pixelRef()) {
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return;
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}
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SkShader* s = SkShader::CreateBitmapShader(bitmap,
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SkShader::kRepeat_TileMode,
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SkShader::kRepeat_TileMode);
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paint.setShader(s)->unref();
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m.setTranslate(SkIntToScalar(250), SkIntToScalar(134));
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s->setLocalMatrix(m);
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r.set(SkIntToScalar(250),
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SkIntToScalar(134),
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SkIntToScalar(250 + 449),
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SkIntToScalar(134 + 701));
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paint.setFlags(2);
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canvas->drawRect(r, paint);
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}
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static void DrawRoundRect(SkCanvas& canvas) {
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bool ret = false;
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SkPaint paint;
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SkBitmap bitmap;
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SkMatrix matrix;
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matrix.reset();
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bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1370, 812);
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bitmap.allocPixels();
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#if 0
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SkCanvas canvas;
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canvas.setBitmapDevice(bitmap);
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#endif
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// set up clipper
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SkRect skclip;
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skclip.set(SkIntToScalar(284), SkIntToScalar(40), SkIntToScalar(1370), SkIntToScalar(708));
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// ret = canvas.clipRect(skclip);
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// SkASSERT(ret);
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matrix.set(SkMatrix::kMTransX, SkFloatToScalar(-1153.28f));
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matrix.set(SkMatrix::kMTransY, SkFloatToScalar(1180.50f));
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matrix.set(SkMatrix::kMScaleX, SkFloatToScalar(0.177171f));
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matrix.set(SkMatrix::kMScaleY, SkFloatToScalar(0.177043f));
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matrix.set(SkMatrix::kMSkewX, SkFloatToScalar(0.126968f));
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matrix.set(SkMatrix::kMSkewY, SkFloatToScalar(-0.126876f));
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matrix.set(SkMatrix::kMPersp0, SkFloatToScalar(0.0f));
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matrix.set(SkMatrix::kMPersp1, SkFloatToScalar(0.0f));
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ret = canvas.concat(matrix);
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paint.setAntiAlias(true);
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paint.setColor(0xb2202020);
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(SkFloatToScalar(68.13f));
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SkRect r;
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r.set(SkFloatToScalar(-313.714417f), SkFloatToScalar(-4.826389f), SkFloatToScalar(18014.447266f), SkFloatToScalar(1858.154541f));
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canvas.drawRoundRect(r, SkFloatToScalar(91.756363f), SkFloatToScalar(91.756363f), paint);
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}
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static bool SetImageRef(SkBitmap* bitmap, SkStream* stream,
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SkBitmap::Config pref, const char name[] = NULL) {
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#if 0
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// test buffer streams
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SkStream* str = new SkBufferStream(stream, 717);
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stream->unref();
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stream = str;
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#endif
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SkImageRef* ref = new SkImageRef_GlobalPool(stream, pref, 1);
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ref->setURI(name);
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if (!ref->getInfo(bitmap)) {
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delete ref;
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return false;
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}
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bitmap->setPixelRef(ref)->unref();
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return true;
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}
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//#define SPECIFIC_IMAGE "/skimages/72.jpg"
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#define SPECIFIC_IMAGE "/Users/reed/Downloads/3elfs.jpg"
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#define IMAGE_DIR "/skimages/"
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#define IMAGE_SUFFIX ".gif"
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class ImageDirView : public SkView {
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public:
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SkBitmap* fBitmaps;
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SkString* fStrings;
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int fBitmapCount;
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int fCurrIndex;
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SkScalar fSaturation;
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SkScalar fAngle;
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ImageDirView() {
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SkImageRef_GlobalPool::SetRAMBudget(320 * 1024);
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#ifdef SPECIFIC_IMAGE
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fBitmaps = new SkBitmap[3];
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fStrings = new SkString[3];
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fBitmapCount = 3;
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const SkBitmap::Config configs[] = {
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SkBitmap::kARGB_8888_Config,
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SkBitmap::kRGB_565_Config,
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SkBitmap::kARGB_4444_Config
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};
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for (int i = 0; i < fBitmapCount; i++) {
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#if 1
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SkStream* stream = new SkFILEStream(SPECIFIC_IMAGE);
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SetImageRef(&fBitmaps[i], stream, configs[i], SPECIFIC_IMAGE);
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stream->unref();
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#else
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SkImageDecoder::DecodeFile(SPECIFIC_IMAGE, &fBitmaps[i]);
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#endif
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}
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#else
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int i, N = 0;
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SkOSFile::Iter iter(IMAGE_DIR, IMAGE_SUFFIX);
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SkString name;
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while (iter.next(&name)) {
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N += 1;
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}
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fBitmaps = new SkBitmap[N];
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fStrings = new SkString[N];
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iter.reset(IMAGE_DIR, IMAGE_SUFFIX);
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for (i = 0; i < N; i++) {
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iter.next(&name);
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SkString path(IMAGE_DIR);
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path.append(name);
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SkStream* stream = new SkFILEStream(path.c_str());
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SetImageRef(&fBitmaps[i], stream, SkBitmap::kNo_Config,
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name.c_str());
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stream->unref();
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fStrings[i] = name;
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}
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fBitmapCount = N;
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#endif
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fCurrIndex = 0;
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fDX = fDY = 0;
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fSaturation = SK_Scalar1;
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fAngle = 0;
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fScale = SK_Scalar1;
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}
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virtual ~ImageDirView() {
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delete[] fBitmaps;
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delete[] fStrings;
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SkImageRef_GlobalPool::DumpPool();
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}
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protected:
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// overrides from SkEventSink
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virtual bool onQuery(SkEvent* evt) {
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if (SampleCode::TitleQ(*evt)) {
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SkString str("ImageDir: ");
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#ifdef SPECIFIC_IMAGE
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str.append(SPECIFIC_IMAGE);
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#else
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str.append(IMAGE_DIR);
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#endif
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SampleCode::TitleR(evt, str.c_str());
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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void drawBG(SkCanvas* canvas) {
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// canvas->drawColor(0xFFDDDDDD);
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canvas->drawColor(SK_ColorGRAY);
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canvas->drawColor(SK_ColorWHITE);
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}
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SkScalar fScale;
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virtual void onDraw(SkCanvas* canvas) {
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this->drawBG(canvas);
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if (true) {
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canvas->scale(SkIntToScalar(2), SkIntToScalar(2));
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drawmarshmallow(canvas);
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return;
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}
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if (false) {
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SkPaint p;
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p.setStyle(SkPaint::kStroke_Style);
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p.setStrokeWidth(SkIntToScalar(4));
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canvas->drawCircle(SkIntToScalar(100), SkIntToScalar(100), SkIntToScalar(50), p);
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p.setAntiAlias(true);
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canvas->drawCircle(SkIntToScalar(300), SkIntToScalar(100), SkIntToScalar(50), p);
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}
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if (false) {
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SkScalar cx = this->width()/2;
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SkScalar cy = this->height()/2;
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canvas->translate(cx, cy);
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canvas->scale(fScale, fScale);
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canvas->translate(-cx, -cy);
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DrawRoundRect(*canvas);
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return;
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}
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canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
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SkScalar x = SkIntToScalar(32), y = SkIntToScalar(32);
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SkPaint paint;
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#if 0
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for (int i = 0; i < fBitmapCount; i++) {
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SkPaint p;
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#if 1
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const SkScalar cm[] = {
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SkIntToScalar(2), 0, 0, 0, SkIntToScalar(-255),
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0, SkIntToScalar(2), 0, 0, SkIntToScalar(-255),
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0, 0, SkIntToScalar(2), 0, SkIntToScalar(-255),
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0, 0, 0, SkIntToScalar(1), 0
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};
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SkColorFilter* cf = new SkColorMatrixFilter(cm);
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p.setColorFilter(cf)->unref();
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#endif
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canvas->drawBitmap(fBitmaps[i], x, y, &p);
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x += SkIntToScalar(fBitmaps[i].width() + 10);
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}
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return;
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#endif
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canvas->drawBitmap(fBitmaps[fCurrIndex], x, y, &paint);
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#ifndef SPECIFIC_IMAGE
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if (true) {
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fCurrIndex += 1;
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if (fCurrIndex >= fBitmapCount) {
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fCurrIndex = 0;
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}
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this->inval(NULL);
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}
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#endif
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}
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virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
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if (true) {
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fCurrIndex += 1;
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if (fCurrIndex >= fBitmapCount)
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fCurrIndex = 0;
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this->inval(NULL);
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}
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return new Click(this);
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}
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virtual bool onClick(Click* click) {
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SkScalar center = this->width()/2;
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fSaturation = SkScalarDiv(click->fCurr.fX - center, center/2);
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center = this->height()/2;
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fAngle = SkScalarDiv(click->fCurr.fY - center, center) * 180;
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fDX += click->fCurr.fX - click->fPrev.fX;
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fDY += click->fCurr.fY - click->fPrev.fY;
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fScale = SkScalarDiv(click->fCurr.fX, this->width());
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this->inval(NULL);
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return true;
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return this->INHERITED::onClick(click);
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}
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private:
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SkScalar fDX, fDY;
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typedef SkView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new ImageDirView; }
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static SkViewRegister reg(MyFactory);
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