git.sesse.net Git - casparcg/blob - modules/psd/layer.h

   1 /*
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
   3 *
   4 * This file is part of CasparCG (www.casparcg.com).
   5 *
   6 * CasparCG is free software: you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation, either version 3 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * CasparCG is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
  18 *
  19 * Author: Niklas P Andersson, niklas.p.andersson@svt.se
  20 */
  21
  22 #ifndef _PSDLAYER_H__
  23 #define _PSDLAYER_H__
  24
  25 #pragma once
  26
  27 #include <vector>
  28 #include <string>
  29 #include <memory>
  30 #include "util\bigendian_file_input_stream.h"
  31
  32 #include "image.h"
  33 #include "misc.h"
  34 #include "channel.h"
  35 #include <boost/property_tree/ptree.hpp>
  36
  37 namespace caspar { namespace psd {
  38
  39 class layer;
  40 typedef std::shared_ptr<layer> layer_ptr;
  41
  42 class layer
  43 {
  44 public:
  45         class layer_mask
  46         {
  47                 friend class layer;
  48         public:
  49
  50                 bool enabled() { return (flags_ & 2) == 0; }
  51                 bool linked() { return (flags_ & 1) == 0;  }
  52                 bool inverted() { return (flags_ & 4) == 4; }
  53
  54                 void read_mask_data(BEFileInputStream&);
  55
  56                 char                    mask_id_;
  57                 image8bit_ptr   mask_;
  58                 psd::rect<long> rect_;
  59                 unsigned char   default_value_;
  60                 unsigned char   flags_;
  61         };
  62
  63         layer() : blend_mode_(InvalidBlendMode), link_group_id_(0), opacity_(255), baseClipping_(false), flags_(0), protection_flags_(0), masks_(0)
  64         {}
  65
  66         static std::shared_ptr<layer> create(BEFileInputStream&);
  67         void populate(BEFileInputStream&);
  68         void read_channel_data(BEFileInputStream&);
  69
  70         const std::wstring& name() const
  71         {
  72                 return name_;
  73         }
  74         const psd::rect<long>& rect() const
  75         {
  76                 return rect_;
  77         }
  78
  79         unsigned char opacity() const
  80         {
  81                 return opacity_;
  82         }
  83
  84         unsigned short flags() const
  85         {
  86                 return flags_;
  87         }
  88
  89         bool visible() { return (flags_ & 2) == 0; }    //the (PSD file-format) documentation is is saying the opposite but what the heck
  90         bool is_position_protected() { return (protection_flags_& 4) == 4; }
  91         bool is_text() const;
  92
  93         const boost::property_tree::wptree& text_data() const { return text_layer_info_; }
  94
  95         const image8bit_ptr& image() const { return image_; }
  96
  97         const layer_mask& mask_info() const { return mask_; }
  98         const image8bit_ptr& mask() const { return mask_.mask_; }
  99
 100         int link_group_id() { return link_group_id_; }
 101         void set_link_group_id(int id) { link_group_id_ = id; }
 102
 103 private:
 104         channel_ptr get_channel(channel_type);
 105         void read_blending_ranges(BEFileInputStream&);
 106
 107         caspar::psd::rect<long>                 rect_;
 108         std::vector<channel_ptr>                channels_;
 109         blend_mode                                              blend_mode_;
 110         int                                                             link_group_id_;
 111         unsigned char                                   opacity_;
 112         bool                                                    baseClipping_;
 113         unsigned char                                   flags_;
 114         int                                                             protection_flags_;
 115         std::wstring                                    name_;
 116         char                                                    masks_;
 117
 118         layer_mask                                              mask_;
 119
 120         image8bit_ptr                                   image_;
 121
 122         boost::property_tree::wptree    text_layer_info_;
 123 };
 124
 125 }       //namespace psd
 126 }       //namespace caspar
 127
 128 #endif  //_PSDLAYER_H__