RDKit
Open-source cheminformatics and machine learning.
DrawTextJS.h
Go to the documentation of this file.
1 //
2 // Copyright (C) 2020-2022 Greg Landrum and other RDKit contributors
3 //
4 // @@ All Rights Reserved @@
5 // This file is part of the RDKit.
6 // The contents are covered by the terms of the BSD license
7 // which is included in the file license.txt, found at the root
8 // of the RDKit source tree.
9 //
10 // Original author: Greg Landrum
11 //
12 // A concrete class derived from DrawText that uses the JS Canvas
13 // to draw text onto a picture.
14 // Requires emscripten
15 
16 #ifndef RDKIT_DRAWTEXTJS_H
17 #define RDKIT_DRAWTEXTJS_H
18 
19 #include <iosfwd>
20 
21 #include <emscripten.h>
22 #include <emscripten/val.h>
24 
25 namespace RDKit {
26 namespace MolDraw2D_detail {
27 // ****************************************************************************
28 
29 class DrawTextJS : public DrawTextNotFT {
30  public:
31  DrawTextJS(double max_fnt_sz, double min_fnt_sz, emscripten::val &context);
32  DrawTextJS(const DrawTextJS &rhs) = delete;
33  DrawTextJS(const DrawTextJS &&rhs) = delete;
34  DrawTextJS &operator=(const DrawTextJS &rhs) = delete;
35  DrawTextJS &operator=(const DrawTextJS &&rhs) = delete;
36 
37  void drawChar(char c, const Point2D &cds) override;
38 
39  emscripten::val &context_;
40 
41  // fills a vector of StringRects, one for each char in text, with
42  // super- and subscripts taken into account. Sizes in pixel coords,
43  // i.e. scaled by fontScale().
44  void getStringRects(const std::string &text,
45  std::vector<std::shared_ptr<StringRect>> &rects,
46  std::vector<TextDrawType> &draw_modes,
47  std::vector<char> &draw_chars) const override;
48 };
49 
50 } // namespace MolDraw2D_detail
51 } // namespace RDKit
52 
53 #endif // RDKIT_DRAWTEXTSVG_H
DrawTextJS(double max_fnt_sz, double min_fnt_sz, emscripten::val &context)
DrawTextJS(const DrawTextJS &&rhs)=delete
DrawTextJS & operator=(const DrawTextJS &&rhs)=delete
void drawChar(char c, const Point2D &cds) override
DrawTextJS(const DrawTextJS &rhs)=delete
DrawTextJS & operator=(const DrawTextJS &rhs)=delete
void getStringRects(const std::string &text, std::vector< std::shared_ptr< StringRect >> &rects, std::vector< TextDrawType > &draw_modes, std::vector< char > &draw_chars) const override
Std stuff.
Definition: Abbreviations.h:19