RDKit
Open-source cheminformatics and machine learning.
DrawTextCairo.h
Go to the documentation of this file.
1//
2// Copyright (C) 2020-2022 David Cosgrove 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: David Cosgrove (CozChemIx).
11//
12// A concrete class derived from DrawText that uses the Cairo
13// toy API to draw text onto a surface.
14
15#ifndef RDKIT_DRAWTEXTCAIRO_H
16#define RDKIT_DRAWTEXTCAIRO_H
17
18#include <cairo.h>
19
21
22namespace RDKit {
23
24class MolDraw2DCairo;
25namespace MolDraw2D_detail {
26
27// ****************************************************************************
29
30 public:
31 DrawTextCairo(double max_fnt_sz, double min_fnt_sz, cairo_t *dp_cr);
32 DrawTextCairo(const DrawTextCairo &) = delete;
36 void drawChar(char c, const Point2D &cds) override;
37 void setCairoContext(cairo_t *cr);
38
39 private:
40 cairo_t *dp_cr_;
41
42 // return a vector of StringRects, one for each char in text, with
43 // super- and subscripts taken into account. Sizes in pixel coords,
44 // i.e. scaled by fontScale().
45 void getStringRects(const std::string &text,
46 std::vector<std::shared_ptr<StringRect>> &rects,
47 std::vector<TextDrawType> &draw_modes,
48 std::vector<char> &draw_chars) const override;
49};
50
51} // namespace MolDraw2D_detail
52} // namespace RDKit
53
54#endif // RDKIT_DRAWTEXTCAIRO_H
DrawTextCairo & operator=(DrawTextCairo &&)=delete
DrawTextCairo(const DrawTextCairo &)=delete
DrawTextCairo & operator=(const DrawTextCairo &)=delete
DrawTextCairo(DrawTextCairo &&)=delete
DrawTextCairo(double max_fnt_sz, double min_fnt_sz, cairo_t *dp_cr)
void drawChar(char c, const Point2D &cds) override
Std stuff.
Definition: Abbreviations.h:19