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88 lines
2.9 KiB
C++
88 lines
2.9 KiB
C++
//
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// Copyright (C) 2020-2022 Greg Landrum and other RDKit contributors
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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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// Original author: Greg Landrum
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//
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#ifdef __EMSCRIPTEN__
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#include <GraphMol/MolDraw2D/DrawTextFT.h>
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#include <GraphMol/MolDraw2D/DrawTextFTJS.h>
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namespace RDKit {
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std::string DrawColourToSVG(const RDKit::DrawColour &col);
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namespace MolDraw2D_detail {
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// ****************************************************************************
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DrawTextFTJS::DrawTextFTJS(double max_fnt_sz, double min_fnt_sz,
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const std::string &font_file,
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emscripten::val &context)
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: DrawTextFT(max_fnt_sz, min_fnt_sz, font_file), context_(context) {}
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// ****************************************************************************
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double DrawTextFTJS::extractOutline() {
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std::string col = DrawColourToSVG(colour());
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context_.call<void>("beginPath");
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context_.set("fillStyle", col);
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double adv = DrawTextFT::extractOutline();
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context_.call<void>("fill");
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return adv;
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}
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// ****************************************************************************
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int DrawTextFTJS::MoveToFunctionImpl(const FT_Vector *to) {
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double dx, dy;
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fontPosToDrawPos(to->x, to->y, dx, dy);
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context_.call<void>("moveTo", dx, dy);
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return 0;
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}
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// ****************************************************************************
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int DrawTextFTJS::LineToFunctionImpl(const FT_Vector *to) {
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double dx, dy;
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fontPosToDrawPos(to->x, to->y, dx, dy);
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context_.call<void>("lineTo", dx, dy);
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return 0;
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}
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// ****************************************************************************
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int DrawTextFTJS::ConicToFunctionImpl(const FT_Vector *control,
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const FT_Vector *to) {
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double controlX, controlY;
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fontPosToDrawPos(control->x, control->y, controlX, controlY);
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double dx, dy;
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fontPosToDrawPos(to->x, to->y, dx, dy);
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context_.call<void>("quadraticCurveTo", controlX, controlY, dx, dy);
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return 0;
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}
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// ****************************************************************************
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int DrawTextFTJS::CubicToFunctionImpl(const FT_Vector *controlOne,
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const FT_Vector *controlTwo,
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const FT_Vector *to) {
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double controlOneX, controlOneY;
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fontPosToDrawPos(controlOne->x, controlOne->y, controlOneX, controlOneY);
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double controlTwoX, controlTwoY;
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fontPosToDrawPos(controlTwo->x, controlTwo->y, controlTwoX, controlTwoY);
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double dx, dy;
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fontPosToDrawPos(to->x, to->y, dx, dy);
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context_.call<void>("bezierCurveTo", controlOneX, controlOneY, controlTwoX,
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controlTwoY, dx, dy);
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return 0;
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}
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} // namespace MolDraw2D_detail
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} // namespace RDKit
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#endif // __EMSCRIPTEN__
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