mirror of
https://invent.kde.org/graphics/okular
synced 2024-08-25 02:45:38 +00:00
62 lines
1.8 KiB
C++
62 lines
1.8 KiB
C++
// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil; c-brace-offset: 0; -*-
|
|
//
|
|
// anchor.h
|
|
//
|
|
// Part of KVIEWSHELL - A framework for multipage text/gfx viewers
|
|
//
|
|
// (C) 2004-2005 Stefan Kebekus
|
|
// Distributed under the GPL
|
|
|
|
|
|
#ifndef ANCHOR_H
|
|
#define ANCHOR_H
|
|
|
|
#include "length.h"
|
|
#include "pageNumber.h"
|
|
|
|
|
|
/** \brief Page number and vertical position in physical coordinates
|
|
|
|
This very simple class contains a page number and a vertical position
|
|
in physical coordiantes. The vertical position is given by the
|
|
distance from the top of the page. Anchors are completely independent
|
|
of documents, there is no need for a document to exists that contains
|
|
the given page, nor does the page number need to be valid.
|
|
|
|
@author Stefan Kebekus <kebekus@kde.org>
|
|
@version 1.0 0
|
|
*/
|
|
|
|
class Anchor {
|
|
public:
|
|
/** \brief Constructs an anchor that points to an invalid page */
|
|
Anchor() {page = 0;}
|
|
|
|
/** \brief Constructs an snchor that points to a given position on a
|
|
given page
|
|
|
|
The class contains no code to make sure in any way that the page
|
|
number pg exists, and that page pg, if it exists, is taller than
|
|
distance_from_top
|
|
|
|
@param pg number of the page
|
|
@param _distance_from_top distance from the top of the page
|
|
*/
|
|
Anchor(const PageNumber& pg, const Length& _distance_from_top): page(pg), distance_from_top(_distance_from_top) {}
|
|
|
|
/** \brief quick validity check for anchors
|
|
|
|
@returns true if the page number is valid, and 0mm <= distance_from_top <= 2m
|
|
*/
|
|
bool isValid() const {return page.isValid() && (0.0 <= distance_from_top.getLength_in_mm()) && (distance_from_top.getLength_in_mm() <= 2000.0);}
|
|
|
|
/** \brief Page number that this anchor point to */
|
|
PageNumber page;
|
|
|
|
/** \brief Distance from the top of the page in inch */
|
|
Length distance_from_top;
|
|
};
|
|
|
|
|
|
#endif
|