remove remaining parts os SkExample

experimental/SkiaExamples/SkExample.cpp

-/*
- * Copyright 2013 Google Inc.
- *
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
- */
-
-#include "SkExample.h"
-
-#include "gl/GrGLInterface.h"
-#include "SkApplication.h"
-#include "SkCanvas.h"
-#include "SkGradientShader.h"
-#include "SkGraphics.h"
-#include "SkGr.h"
-
-void application_init() {
-    SkGraphics::Init();
-    SkEvent::Init();
-}
-
-void application_term() {
-    SkEvent::Term();
-    SkGraphics::Term();
-}
-
-SkExampleWindow::SkExampleWindow(void* hwnd)
-    : INHERITED(hwnd) {
-    fType = SkExampleWindow::kGPU_DeviceType;
-    fRenderTarget = NULL;
-    fRotationAngle = 0;
-    this->setTitle();
-    this->setUpBackend();
-}
-
-SkExampleWindow::~SkExampleWindow() {
-    tearDownBackend();
-}
-
-void SkExampleWindow::tearDownBackend() {
-    SkSafeUnref(fContext);
-    fContext = NULL;
-
-    SkSafeUnref(fInterface);
-    fInterface = NULL;
-
-    SkSafeUnref(fRenderTarget);
-    fRenderTarget = NULL;
-
-    INHERITED::detach();
-}
-
-void SkExampleWindow::setTitle() {
-    SkString title("SkiaExample ");
-    title.appendf(fType == kRaster_DeviceType ? "raster" : "opengl");
-    INHERITED::setTitle(title.c_str());
-}
-
-bool SkExampleWindow::setUpBackend() {
-    this->setColorType(kRGBA_8888_SkColorType);
-    this->setVisibleP(true);
-    this->setClipToBounds(false);
-
-    bool result = attach(kNativeGL_BackEndType, 0 /*msaa*/, &fAttachmentInfo);
-    if (false == result) {
-        SkDebugf("Not possible to create backend.\n");
-        detach();
-        return false;
-    }
-
-    fInterface = GrGLCreateNativeInterface();
-
-    SkASSERT(NULL != fInterface);
-
-    fContext = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext)fInterface);
-    SkASSERT(NULL != fContext);
-
-    this->setUpRenderTarget();
-    return true;
-}
-
-void SkExampleWindow::setUpRenderTarget() {
-    SkSafeUnref(fRenderTarget);
-    fRenderTarget = this->renderTarget(fAttachmentInfo, fInterface, fContext);
-}
-
-void SkExampleWindow::drawContents(SkCanvas* canvas) {
-    // Clear background
-    canvas->drawColor(SK_ColorWHITE);
-
-    SkPaint paint;
-    paint.setColor(SK_ColorRED);
-
-    // Draw a rectangle with red paint
-    SkRect rect = {
-            10, 10,
-            128, 128
-    };
-    canvas->drawRect(rect, paint);
-
-    // Set up a linear gradient and draw a circle
-    {
-        SkPoint linearPoints[] = {
-                {0, 0},
-                {300, 300}
-        };
-        SkColor linearColors[] = {SK_ColorGREEN, SK_ColorBLACK};
-
-        SkShader* shader = SkGradientShader::CreateLinear(
-                linearPoints, linearColors, NULL, 2,
-                SkShader::kMirror_TileMode);
-        SkAutoUnref shader_deleter(shader);
-
-        paint.setShader(shader);
-        paint.setFlags(SkPaint::kAntiAlias_Flag);
-
-        canvas->drawCircle(200, 200, 64, paint);
-
-        // Detach shader
-        paint.setShader(NULL);
-    }
-
-    // Draw a message with a nice black paint.
-    paint.setFlags(
-            SkPaint::kAntiAlias_Flag |
-            SkPaint::kSubpixelText_Flag |  // ... avoid waggly text when rotating.
-            SkPaint::kUnderlineText_Flag);
-    paint.setColor(SK_ColorBLACK);
-    paint.setTextSize(20);
-
-    canvas->save();
-
-    static const char message[] = "Hello Skia!!!";
-
-    // Translate and rotate
-    canvas->translate(300, 300);
-    fRotationAngle += 0.2f;
-    if (fRotationAngle > 360) {
-        fRotationAngle -= 360;
-    }
-    canvas->rotate(fRotationAngle);
-
-    // Draw the text:
-    canvas->drawText(message, strlen(message), 0, 0, paint);
-
-    canvas->restore();
-}
-
-void SkExampleWindow::draw(SkCanvas* canvas) {
-    drawContents(canvas);
-    // in case we have queued drawing calls
-    fContext->flush();
-    // Invalidate the window to force a redraw. Poor man's animation mechanism.
-    this->inval(NULL);
-
-    if (kRaster_DeviceType == fType) {
-        // need to send the raster bits to the (gpu) window
-        SkImage* snap = fSurface->newImageSnapshot();
-        size_t rowBytes;
-        SkImageInfo info;
-        const void* pixels = snap->peekPixels(&info, &rowBytes);
-        fRenderTarget->writePixels(0, 0, snap->width(), snap->height(),
-                                        SkImageInfo2GrPixelConfig(info.colorType(),
-                                                                info.alphaType(),
-                                                                info.profileType()),
-                                        pixels,
-                                        rowBytes,
-                                        GrContext::kFlushWrites_PixelOp);
-        SkSafeUnref(snap);
-    }
-    INHERITED::present();
-}
-
-void SkExampleWindow::onSizeChange() {
-    setUpRenderTarget();
-}
-
-bool SkExampleWindow::onHandleChar(SkUnichar unichar) {
-    if (' ' == unichar) {
-        fType = fType == kRaster_DeviceType ? kGPU_DeviceType: kRaster_DeviceType;
-        tearDownBackend();
-        setUpBackend();
-        this->setTitle();
-        this->inval(NULL);
-    }
-    return true;
-}
-
-SkOSWindow* create_sk_window(void* hwnd, int , char** ) {
-    return new SkExampleWindow(hwnd);
-}