| /* |
| * 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/core/horizontal_device_metrics_table.h" |
| |
| namespace sfntly { |
| /****************************************************************************** |
| * HorizontalDeviceMetricsTable class |
| ******************************************************************************/ |
| HorizontalDeviceMetricsTable:: ~HorizontalDeviceMetricsTable() {} |
| |
| int32_t HorizontalDeviceMetricsTable::Version() { |
| return data_->ReadUShort(Offset::kVersion); |
| } |
| |
| int32_t HorizontalDeviceMetricsTable::NumRecords() { |
| return data_->ReadShort(Offset::kNumRecords); |
| } |
| |
| int32_t HorizontalDeviceMetricsTable::RecordSize() { |
| return data_->ReadLong(Offset::kSizeDeviceRecord); |
| } |
| |
| int32_t HorizontalDeviceMetricsTable::PixelSize(int32_t record_index) { |
| if (record_index < 0 || record_index >= NumRecords()) { |
| #if !defined (SFNTLY_NO_EXCEPTION) |
| throw IndexOutOfBoundsException(); |
| #endif |
| return -1; |
| } |
| return data_->ReadUByte(Offset::kRecords + record_index * RecordSize() + |
| Offset::kDeviceRecordPixelSize); |
| } |
| |
| int32_t HorizontalDeviceMetricsTable::MaxWidth(int32_t record_index) { |
| if (record_index < 0 || record_index >= NumRecords()) { |
| #if !defined (SFNTLY_NO_EXCEPTION) |
| throw IndexOutOfBoundsException(); |
| #endif |
| return -1; |
| } |
| return data_->ReadUByte(Offset::kRecords + record_index * RecordSize() + |
| Offset::kDeviceRecordMaxWidth); |
| } |
| |
| int32_t HorizontalDeviceMetricsTable::Width(int32_t record_index, |
| int32_t glyph_num) { |
| if (record_index < 0 || record_index >= NumRecords() || |
| glyph_num < 0 || glyph_num >= num_glyphs_) { |
| #if !defined (SFNTLY_NO_EXCEPTION) |
| throw IndexOutOfBoundsException(); |
| #endif |
| return -1; |
| } |
| return data_->ReadUByte(Offset::kRecords + record_index * RecordSize() + |
| Offset::kDeviceRecordWidths + glyph_num); |
| } |
| |
| HorizontalDeviceMetricsTable::HorizontalDeviceMetricsTable( |
| Header* header, |
| ReadableFontData* data, |
| int32_t num_glyphs) |
| : Table(header, data), num_glyphs_(num_glyphs) { |
| } |
| |
| /****************************************************************************** |
| * HorizontalDeviceMetricsTable::Builder class |
| ******************************************************************************/ |
| HorizontalDeviceMetricsTable::Builder::Builder(Header* header, |
| WritableFontData* data) |
| : TableBasedTableBuilder(header, data), num_glyphs_(-1) { |
| } |
| |
| HorizontalDeviceMetricsTable::Builder::Builder(Header* header, |
| ReadableFontData* data) |
| : TableBasedTableBuilder(header, data), num_glyphs_(-1) { |
| } |
| |
| HorizontalDeviceMetricsTable::Builder::~Builder() {} |
| |
| CALLER_ATTACH FontDataTable* |
| HorizontalDeviceMetricsTable::Builder::SubBuildTable(ReadableFontData* data) { |
| FontDataTablePtr table = new HorizontalDeviceMetricsTable(header(), data, |
| num_glyphs_); |
| return table.Detach(); |
| } |
| |
| void HorizontalDeviceMetricsTable::Builder::SetNumGlyphs(int32_t num_glyphs) { |
| if (num_glyphs < 0) { |
| #if !defined (SFNTLY_NO_EXCEPTION) |
| throw IllegalArgumentException("Number of glyphs can't be negative."); |
| #endif |
| return; |
| } |
| num_glyphs_ = num_glyphs; |
| HorizontalDeviceMetricsTable* table = |
| down_cast<HorizontalDeviceMetricsTable*>(GetTable()); |
| if (table) { |
| table->num_glyphs_ = num_glyphs; |
| } |
| } |
| |
| CALLER_ATTACH HorizontalDeviceMetricsTable::Builder* |
| HorizontalDeviceMetricsTable::Builder::CreateBuilder(Header* header, |
| WritableFontData* data) { |
| Ptr<HorizontalDeviceMetricsTable::Builder> builder; |
| builder = new HorizontalDeviceMetricsTable::Builder(header, data); |
| return builder.Detach(); |
| } |
| |
| } // namespace sfntly |