[try 2] skpmaker: make the SKP more graphically interesting (add a border)

tools/skpmaker.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * Simple tool to generate SKP files for testing.
  */
 
 #include "SkCanvas.h"
 #include "SkColor.h"
 #include "SkCommandLineFlags.h"
 #include "SkPaint.h"
 #include "SkPicture.h"
 #include "SkScalar.h"
 #include "SkStream.h"
 
 // Flags used by this file, alphabetically:
 DEFINE_int32(blue, 128, "Value of blue color channel in image, 0-255.");
+DEFINE_int32(border, 4, "Width of the black border around the image.");
 DEFINE_int32(green, 128, "Value of green color channel in image, 0-255.");
 DEFINE_int32(height, 200, "Height of canvas to create.");
 DEFINE_int32(red, 128, "Value of red color channel in image, 0-255.");
 DEFINE_int32(width, 300, "Width of canvas to create.");
 DEFINE_string(writePath, "", "Filepath to write the SKP into.");
 
-static void skpmaker(int width, int height, SkColor color,
+static void skpmaker(int width, int height, int border, SkColor color,
                      const char *writePath) {
     SkPicture pict;
     SkCanvas* canvas = pict.beginRecording(width, height);
     SkPaint paint;
     paint.setStyle(SkPaint::kFill_Style);
+    paint.setColor(SK_ColorBLACK);
+    canvas->drawRectCoords(0, 0, SkIntToScalar(width), SkIntToScalar(height), paint);
     paint.setColor(color);
-    canvas->drawRectCoords(0, 0, SkIntToScalar(width), SkIntToScalar(height), paint);
+    canvas->drawRectCoords(SkIntToScalar(border), SkIntToScalar(border),
+                           SkIntToScalar(width - border*2), SkIntToScalar(height - border*2),
+                           paint);
     pict.endRecording();
     SkFILEWStream stream(writePath);
     pict.serialize(&stream);
 }
 
 int tool_main(int argc, char** argv);
 int tool_main(int argc, char** argv) {
     SkCommandLineFlags::SetUsage("Creates a simple .skp file for testing.");
     SkCommandLineFlags::Parse(argc, argv);
 
@@ skipping 17 matching lines @@
     if (FLAGS_width <= 0) {
         SkDebugf("--width must be >0\n");
         exit(-1);
     }
     if (FLAGS_writePath.isEmpty()) {
         SkDebugf("--writePath must be nonempty\n");
         exit(-1);
     }
 
     SkColor color = SkColorSetRGB(FLAGS_red, FLAGS_green, FLAGS_blue);
-    skpmaker(FLAGS_width, FLAGS_height, color, FLAGS_writePath[0]);
+    skpmaker(FLAGS_width, FLAGS_height, FLAGS_border, color, FLAGS_writePath[0]);
     return 0;
 }
 
 #if !defined SK_BUILD_FOR_IOS
 int main(int argc, char * const argv[]) {
     return tool_main(argc, (char**) argv);
 }
 #endif