Smallest possible desktop application that uses Skia to render stuff.

experimental/SkiaExamples/Presentation.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 "Presentation.h"
+
+#include "SkCanvas.h"
+#include "SkGraphics.h"
+
+// Define a type for presentation functions.
+typedef void (*DrawSlide)(SkView* parent, SkCanvas* canvas);
+
+
+////////////////////////////////////////////////////////////////////////////////
+// Slides
+
+static void sample_slide(SkView* parent, SkCanvas* canvas) {
+    canvas->drawColor(SK_ColorGREEN);
+    const char text[] = "Skia Presentation Slide";
+    SkPaint paint;
+    paint.setFlags(SkPaint::kAntiAlias_Flag | SkPaint::kUnderlineText_Flag);
+    canvas->drawText(text, strlen(text),
+                     100, parent->height() / SkIntToScalar(2), paint);
+}
+
+// Register the slides here:
+const uint32_t kNumSlides = 1;
+DrawSlide gSlides[kNumSlides] = {
+    &sample_slide
+};
+////////////////////////////////////////////////////////////////////////////////
+
+SkOSWindow* create_sk_window(void* hwnd, int argc, char** argv) {
+    return new SkPresentation(hwnd, argc, argv);
+}
+
+void application_init() {
+    SkGraphics::Init();
+    SkEvent::Init();
+}

[caryclark, 2013/06/10 15:48:40]

can this go into base so it isn't repeated in children? (ditto with other
repeats)

[sglez, 2013/06/11 04:24:38]

Done. (But just for the record, defining these functions for every example could
come in handy one day if someone wants to do something besides starting and
stopping subsystems)

+
+void application_term() {
+    SkEvent::Term();
+    SkGraphics::Term();
+}
+
+SkPresentation::SkPresentation(void* hWnd, int argc, char** argv)
+    : INHERITED(hWnd, argc, argv)
+    , slideIndex(0)
+{
+    setupBackend(kGPU_DeviceType);
+}
+
+void SkPresentation::draw(SkCanvas* canvas) {
+    gSlides[slideIndex](this, canvas);
+    canvas->flush();
+    if(this->getDeviceType() == kGPU_DeviceType) {
+        present();
+    }
+}
+
+void SkPresentation::onEvent(SkEvent* evt) SK_OVERRIDE {
+}
+