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      1 /*
      2  * Copyright 2011 Google Inc. All Rights Reserved.
      3  *
      4  * Licensed under the Apache License, Version 2.0  = the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "sfntly/table/bitmap/bitmap_glyph.h"
     18 #include "sfntly/table/bitmap/simple_bitmap_glyph.h"
     19 #include "sfntly/table/bitmap/composite_bitmap_glyph.h"
     20 
     21 namespace sfntly {
     22 /******************************************************************************
     23  * BitmapGlyph class
     24  ******************************************************************************/
     25 BitmapGlyph::~BitmapGlyph() {
     26 }
     27 
     28 CALLER_ATTACH BitmapGlyph* BitmapGlyph::CreateGlyph(ReadableFontData* data,
     29                                                     int32_t format) {
     30   BitmapGlyphPtr glyph;
     31   BitmapGlyphBuilderPtr builder;
     32   builder.Attach(Builder::CreateGlyphBuilder(data, format));
     33   if (builder) {
     34     glyph.Attach(down_cast<BitmapGlyph*>(builder->Build()));
     35   }
     36   return glyph;
     37 }
     38 
     39 BitmapGlyph::BitmapGlyph(ReadableFontData* data, int32_t format)
     40     : SubTable(data), format_(format) {
     41 }
     42 
     43 /******************************************************************************
     44  * BitmapGlyph::Builder class
     45  ******************************************************************************/
     46 BitmapGlyph::Builder::~Builder() {
     47 }
     48 
     49 CALLER_ATTACH BitmapGlyph::Builder*
     50 BitmapGlyph::Builder::CreateGlyphBuilder(ReadableFontData* data,
     51                                          int32_t format) {
     52   BitmapGlyphBuilderPtr builder;
     53   switch (format) {
     54     case 1:
     55     case 2:
     56     case 3:
     57     case 4:
     58     case 5:
     59     case 6:
     60     case 7:
     61       builder = new SimpleBitmapGlyph::Builder(data, format);
     62       break;
     63     case 8:
     64     case 9:
     65       builder = new CompositeBitmapGlyph::Builder(data, format);
     66       break;
     67   }
     68   return builder.Detach();
     69 }
     70 
     71 BitmapGlyph::Builder::Builder(WritableFontData* data, int32_t format)
     72     : SubTable::Builder(data), format_(format) {
     73 }
     74 
     75 BitmapGlyph::Builder::Builder(ReadableFontData* data, int32_t format)
     76     : SubTable::Builder(data), format_(format) {
     77 }
     78 
     79 CALLER_ATTACH
     80 FontDataTable* BitmapGlyph::Builder::SubBuildTable(ReadableFontData* data) {
     81   UNREFERENCED_PARAMETER(data);
     82   return NULL;
     83 }
     84 
     85 void BitmapGlyph::Builder::SubDataSet() {
     86   // NOP
     87 }
     88 
     89 int32_t BitmapGlyph::Builder::SubDataSizeToSerialize() {
     90   return InternalReadData()->Length();
     91 }
     92 
     93 bool BitmapGlyph::Builder::SubReadyToSerialize() {
     94   return true;
     95 }
     96 
     97 int32_t BitmapGlyph::Builder::SubSerialize(WritableFontData* new_data) {
     98   return InternalReadData()->CopyTo(new_data);
     99 }
    100 
    101 }  // namespace sfntly
    102