klayout/src/laybasic/laybasic/layTextInfo.h

90 lines
2.4 KiB
C++

/*
KLayout Layout Viewer
Copyright (C) 2006-2023 Matthias Koefferlein
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef HDR_layTextInfo
#define HDR_layTextInfo
#include "laybasicCommon.h"
#include "dbText.h"
#include "dbBox.h"
namespace lay
{
class LayoutViewBase;
/**
* @brief A class providing information about a text's visual bounding box
*
* The class can act as a BoxConverter.
*/
class LAYBASIC_PUBLIC TextInfo
{
public:
/**
* @brief Constructor
*
* @param view The LayoutView from which to take the text display parameters
* @param vp_trans The effective micron-to-pixel transformation
*/
TextInfo (const LayoutViewBase *view, const db::DCplxTrans &vp_trans);
/**
* @brief Constructor
*
* @param default_text_size The default text size in micron
* @param default_font The default font
* @param apply_text_trans True if text transformations are to be applied
* @param resolution The resolution value (logical pixel size per physical unit pixel)
* @param vp_trans The effective micron-to-pixel transformation
*/
TextInfo (double default_text_size, const db::Font &default_font, bool apply_text_trans, double resolution, const db::DCplxTrans &vp_trans);
/**
* @brief Gets the visual bounding box of the given DText object
*
* The visual bounding box is returned in micrometer units.
* It encloses the glyphs of the text, taking into account the
* text view settings by the view.
*/
db::DBox operator() (const db::DText &text) const
{
return get_bbox (text);
}
private:
double m_default_text_size;
db::Font m_default_font;
bool m_apply_text_trans;
double m_resolution;
db::DCplxTrans m_vp_trans;
db::DBox get_bbox (const db::DText &text) const;
};
}
#endif