1 files changed, 109 insertions, 0 deletions
diff --git a/sfntly/table/bitmap/composite_bitmap_glyph.cc b/sfntly/table/bitmap/composite_bitmap_glyph.cc
new file mode 100644
index 0000000..ae7dc5a
--- /dev/null
+++ b/sfntly/table/bitmap/composite_bitmap_glyph.cc
@@ -0,0 +1,109 @@
+/*
+ * 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 "sfntly/table/bitmap/composite_bitmap_glyph.h"
+
+namespace sfntly {
+/******************************************************************************
+ * CompositeBitmapGlyph class
+ ******************************************************************************/
+CompositeBitmapGlyph::CompositeBitmapGlyph(ReadableFontData* data,
+                                           int32_t format)
+    : BitmapGlyph(data, format) {
+  Initialize(format);
+}
+
+CompositeBitmapGlyph::~CompositeBitmapGlyph() {
+}
+
+int32_t CompositeBitmapGlyph::NumComponents() {
+  return data_->ReadUShort(num_components_offset_);
+}
+
+CompositeBitmapGlyph::Component CompositeBitmapGlyph::GetComponent(
+    int32_t component_num) const {
+  int32_t component_offset = component_array_offset_ +
+                             component_num * Offset::kEbdtComponentLength;
+  return CompositeBitmapGlyph::Component(
+      data_->ReadUShort(component_offset + Offset::kEbdtComponent_glyphCode),
+      data_->ReadChar(component_offset + Offset::kEbdtComponent_xOffset),
+      data_->ReadChar(component_offset + Offset::kEbdtComponent_yOffset));
+}
+
+void CompositeBitmapGlyph::Initialize(int32_t format) {
+  if (format == 8) {
+    num_components_offset_ = Offset::kGlyphFormat8_numComponents;
+    component_array_offset_ = Offset::kGlyphFormat8_componentArray;
+  } else if (format == 9) {
+    num_components_offset_ = Offset::kGlyphFormat9_numComponents;
+    component_array_offset_ = Offset::kGlyphFormat9_componentArray;
+  } else {
+#if !defined (SFNTLY_NO_EXCEPTION)
+    throw IllegalStateException("Attempt to create a Composite Bitmap Glyph "
+                                "with a non-composite format.");
+#endif
+  }
+}
+
+/******************************************************************************
+ * CompositeBitmapGlyph::Component class
+ ******************************************************************************/
+CompositeBitmapGlyph::Component::Component(const Component& rhs)
+    : glyph_code_(rhs.glyph_code_),
+      x_offset_(rhs.x_offset_),
+      y_offset_(rhs.y_offset_) {
+}
+
+bool CompositeBitmapGlyph::Component::operator==(
+    const CompositeBitmapGlyph::Component& rhs) {
+  return glyph_code_ == rhs.glyph_code_;
+}
+
+CompositeBitmapGlyph::Component& CompositeBitmapGlyph::Component::operator=(
+    const CompositeBitmapGlyph::Component& rhs) {
+  glyph_code_ = rhs.glyph_code_;
+  x_offset_ = rhs.x_offset_;
+  y_offset_ = rhs.y_offset_;
+  return *this;
+}
+
+CompositeBitmapGlyph::Component::Component(int32_t glyph_code,
+                                           int32_t x_offset,
+                                           int32_t y_offset)
+    : glyph_code_(glyph_code), x_offset_(x_offset), y_offset_(y_offset) {
+}
+
+/******************************************************************************
+ * CompositeBitmapGlyph::Builder class
+ ******************************************************************************/
+CompositeBitmapGlyph::Builder::Builder(ReadableFontData* data, int32_t format)
+    : BitmapGlyph::Builder(data, format) {
+}
+
+CompositeBitmapGlyph::Builder::Builder(WritableFontData* data, int32_t format)
+    : BitmapGlyph::Builder(data, format) {
+}
+
+CompositeBitmapGlyph::Builder::~Builder() {
+}
+
+CALLER_ATTACH FontDataTable*
+CompositeBitmapGlyph::Builder::SubBuildTable(ReadableFontData* data) {
+  Ptr<CompositeBitmapGlyph> glyph = new CompositeBitmapGlyph(data, format());
+  return glyph.Detach();
+}
+
+}  // namespace sfntly