1 files changed, 82 insertions, 0 deletions
diff --git a/sample/subtly/subsetter_main.cc b/sample/subtly/subsetter_main.cc
new file mode 100644
index 0000000..d438148
--- /dev/null
+++ b/sample/subtly/subsetter_main.cc
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2011 Google Inc. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <map>
+#include <utility>
+
+#include "sfntly/font.h"
+#include "subtly/character_predicate.h"
+#include "subtly/stats.h"
+#include "subtly/subsetter.h"
+#include "subtly/utils.h"
+
+using namespace subtly;
+
+void PrintUsage(const char* program_name) {
+  fprintf(stdout, "Usage: %s <input_font_file> <output_font_file>"
+          "<start_char> <end_char>\n", program_name);
+}
+
+int main(int argc, const char** argv) {
+  const char* program_name = argv[0];
+  if (argc < 5) {
+    PrintUsage(program_name);
+    exit(1);
+  }
+
+  const char* input_font_path = argv[1];
+  const char* output_font_path = argv[2];
+  FontPtr font;
+  font.Attach(subtly::LoadFont(input_font_path));
+  if (font->num_tables() == 0) {
+    fprintf(stderr, "Could not load font %s.\n", input_font_path);
+    exit(1);
+  }
+
+  const char* start_char = argv[3];
+  const char* end_char = argv[4];
+  if (start_char[1] != 0) {
+    fprintf(stderr, "Start character %c invalid.\n", start_char[0]);
+    exit(1);
+  }
+  if (end_char[1] != 0) {
+    fprintf(stderr, "Start character %c invalid.\n", end_char[0]);
+    exit(1);
+  }
+  int32_t original_size = TotalFontSize(font);
+
+
+  Ptr<CharacterPredicate> range_predicate =
+      new AcceptRange(start_char[0], end_char[0]);
+  Ptr<Subsetter> subsetter = new Subsetter(font, range_predicate);
+  Ptr<Font> new_font;
+  new_font.Attach(subsetter->Subset());
+  if (!new_font) {
+    fprintf(stdout, "Cannot create subset.\n");
+    return 0;
+  }
+
+  subtly::SerializeFont(output_font_path, new_font);
+  subtly::PrintComparison(stdout, font, new_font);
+  int32_t new_size = TotalFontSize(new_font);
+  fprintf(stdout, "Went from %d to %d: %lf%% of original\n",
+          original_size, new_size,
+          static_cast<double>(new_size) / original_size * 100);
+  return 0;
+}