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https://github.com/rdkit/rdkit.git
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68 lines
2.3 KiB
C++
68 lines
2.3 KiB
C++
//
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// Copyright (C) 2020 Greg Landrum and T5 informatics GmbH
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//
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// @@ All Rights Reserved @@
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// This file is part of the RDKit.
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// The contents are covered by the terms of the BSD license
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// which is included in the file license.txt, found at the root
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// of the RDKit source tree.
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//
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// derived from Dave Cosgrove's MolDraw2D
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//
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// This is a concrete class derived from MolDraw2D that uses RDKit to draw using
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// the JS canvas. This requires emscripten and is only intended for the RDKit
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// Javascript builds
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#include <RDGeneral/export.h>
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#ifndef MOLDRAW2DJS_H
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#define MOLDRAW2DJS_H
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#include <sstream>
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#include <emscripten.h>
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#include <emscripten/val.h>
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#include <GraphMol/MolDraw2D/MolDraw2D.h>
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// ****************************************************************************
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namespace RDKit {
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class RDKIT_MOLDRAW2D_EXPORT MolDraw2DJS : public MolDraw2D {
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public:
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// initialize to use a particular ostream
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MolDraw2DJS(int width, int height, emscripten::val &context,
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int panelWidth = -1, int panelHeight = -1,
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bool noFreetype = false)
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: MolDraw2D(width, height, panelWidth, panelHeight), d_context(context) {
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PRECONDITION(width > 0, "bad width");
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PRECONDITION(height > 0, "bad height");
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initDrawing();
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needs_init_ = false;
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initTextDrawer(noFreetype);
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}
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MolDraw2DJS(const MolDraw2DJS &) = delete;
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MolDraw2DJS(MolDraw2DJS &&) = delete;
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MolDraw2DJS &operator=(const MolDraw2DJS &) = delete;
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MolDraw2DJS &operator=(MolDraw2DJS &&) = delete;
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void drawLine(const Point2D &cds1, const Point2D &cds2,
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bool rawCoords = false) override;
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void drawPolygon(const std::vector<Point2D> &cds,
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bool rawCoords = false) override;
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void drawEllipse(const Point2D &cds1, const Point2D &cds2,
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bool rawCoords = false) override;
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void clearDrawing() override;
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void drawWavyLine(const Point2D &cds1, const Point2D &cds2,
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const DrawColour &col1, const DrawColour &col2,
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unsigned int nSegments = 16, double vertOffset = 0.05,
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bool rawCoords = false) override;
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private:
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emscripten::val &d_context;
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void initDrawing() override;
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void initTextDrawer(bool noFreetype) override;
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};
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} // namespace RDKit
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#endif // MOLDRAW2DSVG_H
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