--pictureDir foo will load serialized pictures <>.skp from the foo directory

git-svn-id: http://skia.googlecode.com/svn/trunk@4132 2bbb7eff-a529-9590-31e7-b0007b416f81

gyp/SampleApp.gyp

@@ -83,6 +83,7 @@
         '../samplecode/SamplePathClip.cpp',
         '../samplecode/SamplePathEffects.cpp',
         '../samplecode/SamplePicture.cpp',
+        '../samplecode/SamplePictFile.cpp',
         '../samplecode/SamplePoints.cpp',
         '../samplecode/SamplePolyToPoly.cpp',
         '../samplecode/SampleRegion.cpp',

samplecode/SampleApp.cpp

@@ -26,10 +26,22 @@
 #include "gl/GrGLUtil.h"
 #include "GrRenderTarget.h"
 
+#include "SkOSFile.h"
 #include "SkPDFDevice.h"
 #include "SkPDFDocument.h"
 #include "SkStream.h"
 
+extern SampleView* CreateSamplePictFileView(const char filename[]);
+
+class PictFileFactory : public SkViewFactory {
+    SkString fFilename;
+public:
+    PictFileFactory(const SkString& filename) : fFilename(filename) {}
+    virtual SkView* operator() () const SK_OVERRIDE {
+        return CreateSamplePictFileView(fFilename.c_str());
+    }
+};
+
 #define TEST_GPIPE
 
 #ifdef  TEST_GPIPE
@@ -655,7 +667,7 @@ static inline SampleWindow::DeviceType cycle_devicetype(SampleWindow::DeviceType
 }
 
 static void usage(const char * argv0) {
-    SkDebugf("%s [--slide sampleName] [-i resourcePath] [--msaa sampleCount]\n", argv0);
+    SkDebugf("%s [--slide sampleName] [-i resourcePath] [--msaa sampleCount] [--pictureDir path]\n", argv0);
     SkDebugf("    sampleName: sample at which to start.\n");
     SkDebugf("    resourcePath: directory that stores image resources.\n");
     SkDebugf("    msaa: request multisampling with the given sample count.\n");
@@ -665,6 +677,7 @@ SampleWindow::SampleWindow(void* hwnd, int argc, char** argv, DeviceManager* dev
     : INHERITED(hwnd)
     , fDevManager(NULL) {
 
+    this->registerPictFileSamples(argv, argc);
     SkGMRegistyToSampleRegistry();
     {
         const SkViewRegister* reg = SkViewRegister::Head();
@@ -867,6 +880,38 @@ SampleWindow::~SampleWindow() {
     SkSafeUnref(fDevManager);
 }
 
+static void make_filepath(SkString* path, const char* dir, const SkString& name) {
+    size_t len = strlen(dir);
+    path->set(dir);
+    if (len > 0 && dir[len - 1] != '/') {
+        path->append("/");
+    }
+    path->append(name);
+}
+
+void SampleWindow::registerPictFileSamples(char** argv, int argc) {
+    const char* pictDir = NULL;
+
+    for (int i = 0; i < argc; ++i) {
+        if (!strcmp(argv[i], "--pictureDir")) {
+            i += 1;
+            if (i < argc) {
+                pictDir = argv[i];
+                break;
+            }
+        }
+    }
+    if (pictDir) {
+        SkOSFile::Iter iter(pictDir, "skp");
+        SkString filename;
+        while (iter.next(&filename)) {
+            SkString path;
+            make_filepath(&path, pictDir, filename);
+            *fSamples.append() = new PictFileFactory(path);
+        }
+    }
+}
+
 int SampleWindow::findByTitle(const char title[]) {
     int i, count = fSamples.count();
     for (i = 0; i < count; i++) {

samplecode/SampleApp.h

@@ -123,6 +123,8 @@ protected:
     virtual bool onClick(Click* click);
     virtual Click* onFindClickHandler(SkScalar x, SkScalar y);
 
+    void registerPictFileSamples(char** argv, int argc);
+
 private:
     class DefaultDeviceManager;
 

samplecode/SamplePictFile.cpp

@@ -0,0 +1,78 @@
+
+/*
+ * 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 "SkDumpCanvas.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+#include "Sk64.h"
+#include "SkGradientShader.h"
+#include "SkGraphics.h"
+#include "SkImageDecoder.h"
+#include "SkPath.h"
+#include "SkPicture.h"
+#include "SkRandom.h"
+#include "SkRegion.h"
+#include "SkShader.h"
+#include "SkUtils.h"
+#include "SkColorPriv.h"
+#include "SkColorFilter.h"
+#include "SkTime.h"
+#include "SkTypeface.h"
+#include "SkXfermode.h"
+
+#include "SkStream.h"
+#include "SkXMLParser.h"
+
+class PictFileView : public SampleView {
+    SkString    fFilename;
+    SkPicture*  fPicture;
+public:
+    PictFileView(const char name[] = NULL) : fFilename(name) {
+        fPicture = NULL;
+    }
+    
+    virtual ~PictFileView() {
+        SkSafeUnref(fPicture);
+    }
+    
+protected:
+    // overrides from SkEventSink
+    virtual bool onQuery(SkEvent* evt) {
+        if (SampleCode::TitleQ(*evt)) {
+            SkString name("P:");
+            name.append(fFilename);
+            SampleCode::TitleR(evt, name.c_str());
+            return true;
+        }
+        return this->INHERITED::onQuery(evt);
+    }
+    
+    virtual void onDrawContent(SkCanvas* canvas) {
+        if (NULL == fPicture) {
+            SkFILEStream stream(fFilename.c_str());
+            fPicture = SkNEW_ARGS(SkPicture, (&stream));
+        }
+        canvas->drawPicture(*fPicture);
+    }
+    
+private:    
+    typedef SampleView INHERITED;
+};
+
+SampleView* CreateSamplePictFileView(const char filename[]);
+SampleView* CreateSamplePictFileView(const char filename[]) {
+    return new PictFileView(filename);
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+#if 0
+static SkView* MyFactory() { return new PictFileView; }
+static SkViewRegister reg(MyFactory);
+#endif
+