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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32
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33 #include "CairoFont.h"
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34
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35 #include "../Orthanc/Core/Logging.h"
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36 #include "../Orthanc/Core/OrthancException.h"
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37
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38 namespace OrthancStone
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39 {
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40 CairoFont::CairoFont(const char* family,
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41 cairo_font_slant_t slant,
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42 cairo_font_weight_t weight)
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43 {
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44 font_ = cairo_toy_font_face_create(family, slant, weight);
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45 if (font_ == NULL)
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46 {
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47 LOG(ERROR) << "Unknown font: " << family;
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48 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource);
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49 }
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50 }
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51
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52
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53 CairoFont::~CairoFont()
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54 {
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55 if (font_ != NULL)
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56 {
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57 cairo_font_face_destroy(font_);
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58 }
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59 }
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60
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61
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62 void CairoFont::Draw(CairoContext& context,
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63 const std::string& text,
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64 double size)
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65 {
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66 if (size <= 0)
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67 {
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68 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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69 }
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70
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71 cairo_t* cr = context.GetObject();
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72 cairo_set_font_face(cr, font_);
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73 cairo_set_font_size(cr, size);
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74 cairo_show_text(cr, text.c_str());
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75 }
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76 }
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