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115 lines
3.3 KiB
C++
115 lines
3.3 KiB
C++
// -*- C++ -*-
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/**
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* \file NullPainter.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author unknown
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* \author John Levon
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* \author Jean-Marc Lasgouttes
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef NULLPAINTER_H
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#define NULLPAINTER_H
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#include "Painter.h"
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namespace lyx {
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namespace frontend {
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/**
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* NullPainter - A painter instance that does nothing
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*/
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class NullPainter : public Painter {
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public:
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NullPainter() : Painter(1, false) {}
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~NullPainter() {}
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/// draw a line from point to point
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void line(int, int, int, int, Color,
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line_style = line_solid, int = thin_line) override {}
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///
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void lines(int const *, int const *, int, Color,
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fill_style = fill_none, line_style = line_solid,
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int = thin_line) override {}
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///
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void path(int const *, int const *, int const *, int const *,
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int const *, int const *, int, Color,
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fill_style = fill_none, line_style = line_solid, int = thin_line) override {}
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/// draw a rectangle
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void rectangle(int, int, int, int, Color,
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line_style = line_solid, int = thin_line) override {}
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/// draw a filled rectangle
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void fillRectangle(int, int, int, int, Color) override {}
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/// draw an arc
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void arc(int, int, unsigned int, unsigned int, int, int, Color) override {}
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/// draw an ellipse
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void ellipse(double, double, double, double, Color,
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fill_style = fill_none, line_style = line_solid,
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int = thin_line) override {}
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/// draw a pixel
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void point(int, int, Color) override {}
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/// draw an image from the image cache
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void image(int, int, int, int, graphics::Image const &, bool) override {}
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/// draw a string
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void text(int, int, docstring const &, FontInfo const &) override {}
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/// draw a char
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void text(int, int, char_type, FontInfo const &) override {}
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/// draw a string
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void text(int, int, docstring const &, Font const &, double, double) override {}
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///
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void text(int, int, docstring const &, Font const &,
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Color, size_type, size_type, double, double) override {}
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/// This painter does not paint
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bool isNull() const override { return true; }
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/// draw the underbar, strikeout, xout, uuline and uwave font attributes
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void textDecoration(FontInfo const &, int, int, int) override {}
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/**
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* Draw a string and enclose it inside a rectangle. If
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* back color is specified, the background is cleared with
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* the given color. If frame is specified, a thin frame is drawn
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* around the text with the given color.
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*/
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void rectText(int, int, docstring const &,
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FontInfo const &, Color, Color) override {}
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/// draw a string and enclose it inside a button frame
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void buttonText(int, int, docstring const &,
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FontInfo const &, Color, Color, int) override {}
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/// draw a character of a preedit string for cjk support.
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int preeditText(int, int, char_type, FontInfo const &,
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preedit_style) override { return 0; }
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/// start monochrome painting mode, i.e. map every color a shade of \c blend.
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void enterMonochromeMode(Color const &) override {}
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/// leave monochrome painting mode
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void leaveMonochromeMode() override {}
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/// draws a wavy line that can be used for underlining.
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void wavyHorizontalLine(FontInfo const &, int, int, int, ColorCode) override {}
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};
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} // namespace frontend
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} // namespace lyx
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#endif // NULLPAINTER_H
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