orthanc: Core/ImageFormats/Font.cpp annotate

author	Sebastien Jodogne <s.jodogne@gmail.com>
date	Fri, 04 Sep 2015 13:44:21 +0200
parents
children	5e9b2aac8b89

rev	line source
1610 2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	1 /**
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	2 * Orthanc - A Lightweight, RESTful DICOM Store
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	3 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	4 * Department, University Hospital of Liege, Belgium
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	5 *
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	6 * This program is free software: you can redistribute it and/or
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	7 * modify it under the terms of the GNU General Public License as
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	8 * published by the Free Software Foundation, either version 3 of the
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	9 * License, or (at your option) any later version.
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	10 *
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	11 * In addition, as a special exception, the copyright holders of this
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	12 * program give permission to link the code of its release with the
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	14 * that use the same license as the "OpenSSL" library), and distribute
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	15 * the linked executables. You must obey the GNU General Public License
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	16 * in all respects for all of the code used other than "OpenSSL". If you
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	17 * modify file(s) with this exception, you may extend this exception to
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	18 * your version of the file(s), but you are not obligated to do so. If
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	19 * you do not wish to do so, delete this exception statement from your
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	20 * version. If you delete this exception statement from all source files
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	21 * in the program, then also delete it here.
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	22 *
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	23 * This program is distributed in the hope that it will be useful, but
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	24 * WITHOUT ANY WARRANTY; without even the implied warranty of
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	26 * General Public License for more details.
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	27 *
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	28 * You should have received a copy of the GNU General Public License
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	30 **/
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	31
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	32
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	33 #include "../PrecompiledHeaders.h"
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	34 #include "Font.h"
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	35
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	36 #include "../Toolbox.h"
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	37 #include "../OrthancException.h"
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	38
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	39 #include <stdio.h>
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	40 #include <memory>
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	41 #include <boost/lexical_cast.hpp>
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	42
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	43 namespace Orthanc
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	44 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	45 Font::~Font()
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	46 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	47 for (Characters::iterator it = characters_.begin();
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	48 it != characters_.end(); it++)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	49 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	50 delete it->second;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	51 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	52 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	53
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	54
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	55 void Font::LoadFromMemory(const std::string& font)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	56 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	57 Json::Value v;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	58 Json::Reader reader;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	59 if (!reader.parse(font, v) \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	60 v.type() != Json::objectValue \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	61 !v.isMember("Name") \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	62 !v.isMember("Size") \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	63 !v.isMember("Characters") \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	64 v["Name"].type() != Json::stringValue \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	65 v["Size"].type() != Json::intValue \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	66 v["Characters"].type() != Json::objectValue)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	67 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	68 throw OrthancException(ErrorCode_BadFont);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	69 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	70
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	71 name_ = v["Name"].asString();
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	72 size_ = v["Size"].asUInt();
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	73 maxHeight_ = 0;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	74
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	75 Json::Value::Members characters = v["Characters"].getMemberNames();
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	76
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	77 for (size_t i = 0; i < characters.size(); i++)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	78 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	79 const Json::Value& info = v["Characters"][characters[i]];
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	80 if (info.type() != Json::objectValue \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	81 !info.isMember("Advance") \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	82 !info.isMember("Bitmap") \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	83 !info.isMember("Height") \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	84 !info.isMember("Top") \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	85 !info.isMember("Width") \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	86 info["Advance"].type() != Json::intValue \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	87 info["Bitmap"].type() != Json::arrayValue \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	88 info["Height"].type() != Json::intValue \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	89 info["Top"].type() != Json::intValue \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	90 info["Width"].type() != Json::intValue)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	91 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	92 throw OrthancException(ErrorCode_BadFont);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	93 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	94
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	95 std::auto_ptr<Character> c(new Character);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	96
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	97 c->advance_ = info["Advance"].asUInt();
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	98 c->height_ = info["Height"].asUInt();
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	99 c->top_ = info["Top"].asUInt();
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	100 c->width_ = info["Width"].asUInt();
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	101 c->bitmap_.resize(info["Bitmap"].size());
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	102
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	103 if (c->height_ > maxHeight_)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	104 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	105 maxHeight_ = c->height_;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	106 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	107
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	108 for (Json::Value::ArrayIndex j = 0; j < info["Bitmap"].size(); j++)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	109 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	110 if (info["Bitmap"][j].type() != Json::intValue)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	111 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	112 throw OrthancException(ErrorCode_BadFont);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	113 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	114
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	115 int value = info["Bitmap"][j].asInt();
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	116 if (value < 0 \|\| value > 255)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	117 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	118 throw OrthancException(ErrorCode_BadFont);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	119 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	120
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	121 c->bitmap_[j] = value;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	122 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	123
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	124 int index = boost::lexical_cast<int>(characters[i]);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	125 if (index < 0 \|\| index > 255)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	126 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	127 throw OrthancException(ErrorCode_BadFont);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	128 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	129
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	130 characters_[static_cast<char>(index)] = c.release();
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	131 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	132 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	133
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	134
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	135 void Font::LoadFromFile(const std::string& path)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	136 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	137 std::string font;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	138 Toolbox::ReadFile(font, path);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	139 LoadFromMemory(font);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	140 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	141
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	142
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	143 static unsigned int MyMin(unsigned int a,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	144 unsigned int b)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	145 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	146 return a < b ? a : b;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	147 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	148
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	149
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	150 void Font::DrawCharacter(ImageAccessor& target,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	151 const Character& character,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	152 int x,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	153 int y,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	154 const uint8_t color[4]) const
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	155 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	156 // Compute the bounds of the character
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	157 if (x >= static_cast<int>(target.GetWidth()) \|\|
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	158 y >= static_cast<int>(target.GetHeight()))
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	159 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	160 // The character is out of the image
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	161 return;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	162 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	163
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	164 unsigned int left = x < 0 ? -x : 0;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	165 unsigned int top = y < 0 ? -y : 0;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	166 unsigned int width = MyMin(character.width_, target.GetWidth() - x);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	167 unsigned int height = MyMin(character.height_, target.GetHeight() - y);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	168
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	169 uint8_t bpp = target.GetBytesPerPixel();
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	170
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	171 // Blit the font bitmap OVER the target image
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	172 // https://en.wikipedia.org/wiki/Alpha_compositing
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	173
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	174 for (unsigned int cy = top; cy < height; cy++)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	175 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	176 uint8_t* p = reinterpret_cast<uint8_t>(target.GetRow(y + cy)) + (x + left) bpp;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	177 unsigned int pos = cy * character.width_ + left;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	178
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	179 switch (target.GetFormat())
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	180 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	181 case PixelFormat_Grayscale8:
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	182 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	183 assert(bpp == 1);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	184 for (unsigned int cx = left; cx < width; cx++, pos++, p++)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	185 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	186 uint16_t alpha = character.bitmap_[pos];
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	187 p = (alpha static_cast<uint16_t>(color[0]) + (255 - alpha) * static_cast<uint16_t>(*p)) >> 8;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	188 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	189
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	190 break;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	191 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	192
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	193 case PixelFormat_RGB24:
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	194 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	195 assert(bpp == 3);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	196 for (unsigned int cx = left; cx < width; cx++, pos++, p += 3)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	197 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	198 uint16_t alpha = character.bitmap_[pos];
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	199 p[0] = (alpha * static_cast<uint16_t>(color[0]) + (255 - alpha) * static_cast<uint16_t>(p[0])) >> 8;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	200 p[1] = (alpha * static_cast<uint16_t>(color[1]) + (255 - alpha) * static_cast<uint16_t>(p[1])) >> 8;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	201 p[2] = (alpha * static_cast<uint16_t>(color[2]) + (255 - alpha) * static_cast<uint16_t>(p[2])) >> 8;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	202 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	203
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	204 break;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	205 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	206
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	207 case PixelFormat_RGBA32:
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	208 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	209 assert(bpp == 4);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	210
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	211 for (unsigned int cx = left; cx < width; cx++, pos++, p += 4)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	212 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	213 float alpha = static_cast<float>(character.bitmap_[pos]) / 255.0f;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	214 float beta = (1.0f - alpha) * static_cast<float>(p[3]) / 255.0f;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	215 float denom = 1.0f / (alpha + beta);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	216
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	217 for (uint8_t i = 0; i < 3; i++)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	218 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	219 p[i] = static_cast<uint8_t>((alpha * static_cast<float>(color[i]) +
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	220 beta * static_cast<float>(p[i])) * denom);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	221 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	222
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	223 p[3] = static_cast<uint8_t>(255.0f * (alpha + beta));
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	224 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	225
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	226 break;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	227 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	228
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	229 default:
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	230 throw OrthancException(ErrorCode_NotImplemented);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	231 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	232 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	233
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	234 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	235
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	236
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	237 void Font::DrawInternal(ImageAccessor& target,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	238 const std::string& utf8,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	239 int x,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	240 int y,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	241 const uint8_t color[4]) const
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	242 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	243 if (target.GetFormat() != PixelFormat_Grayscale8 &&
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	244 target.GetFormat() != PixelFormat_RGB24 &&
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	245 target.GetFormat() != PixelFormat_RGBA32)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	246 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	247 throw OrthancException(ErrorCode_NotImplemented);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	248 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	249
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	250 int a = x;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	251
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	252 std::string s = Toolbox::ConvertFromUtf8(utf8, Encoding_Latin1);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	253
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	254 for (size_t i = 0; i < s.size(); i++)
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	255 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	256 if (s[i] == '\n')
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	257 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	258 // Go to the next line
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	259 a = x;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	260 y += maxHeight_ + 1;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	261 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	262 else
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	263 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	264 Characters::const_iterator c = characters_.find(s[i]);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	265 if (c != characters_.end())
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	266 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	267 DrawCharacter(target, *c->second, a, y + static_cast<int>(c->second->top_), color);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	268 a += c->second->advance_;
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	269 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	270 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	271 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	272 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	273
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	274
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	275 void Font::DrawText(ImageAccessor& target,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	276 const std::string& utf8,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	277 int x,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	278 int y,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	279 uint8_t grayscale) const
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	280 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	281 uint8_t color[4] = { grayscale, grayscale, grayscale, 255 };
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	282 DrawInternal(target, utf8, x, y, color);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	283 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	284
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	285
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	286 void Font::DrawText(ImageAccessor& target,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	287 const std::string& utf8,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	288 int x,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	289 int y,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	290 uint8_t r,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	291 uint8_t g,
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	292 uint8_t b) const
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	293 {
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	294 uint8_t color[4] = { r, g, b, 255 };
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	295 DrawInternal(target, utf8, x, y, color);
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	296 }
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	297
2dff2bdffdb8 font support within Orthanc Sebastien Jodogne <s.jodogne@gmail.com> parents: diff changeset	298 }

1610

2dff2bdffdb8 font support within Orthanc