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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_SVX_FRAMELINK_HXX
#define INCLUDED_SVX_FRAMELINK_HXX
#include <sal/types.h>
#include <tools/color.hxx>
#include <svx/svxdllapi.h>
#include <editeng/borderline.hxx>
#include <memory>
namespace svx {
namespace frame {
// Enums
/** Specifies how the reference points for frame borders are used.
*/
enum class RefMode
{
/** Frame borders are drawn centered to the reference points. */
Centered,
/** The reference points specify the begin of the frame border width.
The result is that horizontal lines are drawn below, and vertical lines
are drawn right of the reference points.
*/
Begin,
/** The reference points specify the end of the frame border width.
The result is that horizontal lines are drawn above, and vertical lines
are drawn left of the reference points.
*/
End
};
// Classes
/** Contains the widths of primary and secondary line of a frame style.
In the following, "frame style" is a complete style of one frame border,
i.e. the double line at the left side of the frame. A "line" is always a
trivial single line, i.e. the first line of a double frame style.
The following states of the members of this struct are valid:
mnPrim mnDist mnSecn frame style
-------------------------------------------------
0 0 0 invisible
>0 0 0 single
>0 >0 >0 double
The behaviour of the member functions for other states is not defined.
Per definition the primary line in double frame styles is:
- The top line for horizontal frame borders.
- The left line for vertical frame borders.
- The bottom-left line for top-left to bottom-right diagonal frame borders.
- The top-left line for bottom-left to top-right diagonal frame borders.
The following picture shows the upper end of a vertical double frame
border.
|<---------------- GetWidth() ----------------->|
| |
|<----- mnPrim ----->||<- mnDist ->||<- mnSecn >|
| || || |
###################### #############
###################### #############
###################### #############
###################### #############
###################### | #############
###################### | #############
|
|<- middle of the frame border
*/
class SAL_WARN_UNUSED SVXCORE_DLLPUBLIC Style
{
private:
class implStyle
{
private:
friend class Style;
Color maColorPrim;
Color maColorSecn;
Color maColorGap;
bool mbUseGapColor;
RefMode meRefMode; /// Reference point handling for this frame border.
double mfPrim; /// Width of primary (single, left, or top) line.
double mfDist; /// Distance between primary and secondary line.
double mfSecn; /// Width of secondary (right or bottom) line.
double mfPatternScale; /// Scale used for line pattern spacing.
SvxBorderLineStyle mnType;
bool mbWordTableCell;
public:
/** Constructs an invisible frame style. */
explicit implStyle() :
maColorPrim(),
maColorSecn(),
maColorGap(),
mbUseGapColor(false),
meRefMode(RefMode::Centered),
mfPrim(0.0),
mfDist(0.0),
mfSecn(0.0),
mfPatternScale(1.0),
mnType(SvxBorderLineStyle::SOLID),
mbWordTableCell(false)
{}
};
/// the impl class holding the data
std::shared_ptr< implStyle > maImplStyle;
/// call to set maImplStyle on demand
void implEnsureImplStyle();
public:
/** Constructs an invisible frame style. */
explicit Style();
/** Constructs a frame style with passed line widths. */
explicit Style( double nP, double nD, double nS, SvxBorderLineStyle nType, double fScale );
/** Constructs a frame style with passed color and line widths. */
explicit Style( const Color& rColorPrim, const Color& rColorSecn, const Color& rColorGap, bool bUseGapColor, double nP, double nD, double nS, SvxBorderLineStyle nType, double fScale );
/** Constructs a frame style from the passed SvxBorderLine struct. */
explicit Style( const editeng::SvxBorderLine* pBorder, double fScale );
RefMode GetRefMode() const { if(!maImplStyle) return RefMode::Centered; return maImplStyle->meRefMode; }
Color GetColorPrim() const { if(!maImplStyle) return Color(); return maImplStyle->maColorPrim; }
Color GetColorSecn() const { if(!maImplStyle) return Color(); return maImplStyle->maColorSecn; }
Color GetColorGap() const { if(!maImplStyle) return Color(); return maImplStyle->maColorGap; }
bool UseGapColor() const { if(!maImplStyle) return false; return maImplStyle->mbUseGapColor; }
double Prim() const { if(!maImplStyle) return 0.0; return maImplStyle->mfPrim; }
double Dist() const { if(!maImplStyle) return 0.0; return maImplStyle->mfDist; }
double Secn() const { if(!maImplStyle) return 0.0; return maImplStyle->mfSecn; }
double PatternScale() const { if(!maImplStyle) return 1.0; return maImplStyle->mfPatternScale;}
SvxBorderLineStyle Type() const { if(!maImplStyle) return SvxBorderLineStyle::SOLID; return maImplStyle->mnType; }
/// Check if this style is used - this depends on it having any width definition.
/// As can be seen in the definition comment above, Prim() *must* be non zero to have a width
bool IsUsed() const { if(!maImplStyle) return false; return 0.0 != maImplStyle->mfPrim; }
/** Returns the total width of this frame style. */
double GetWidth() const { if(!maImplStyle) return 0.0; implStyle* pTarget = maImplStyle.get(); return pTarget->mfPrim + pTarget->mfDist + pTarget->mfSecn; }
/** Sets the frame style to invisible state. */
void Clear();
/** Sets the frame style to the passed line widths. */
void Set( double nP, double nD, double nS );
/** Sets the frame style to the passed line widths. */
void Set( const Color& rColorPrim, const Color& rColorSecn, const Color& rColorGap, bool bUseGapColor, double nP, double nD, double nS );
/** Sets the frame style to the passed SvxBorderLine struct. If nullptr, resets the style */
void Set( const editeng::SvxBorderLine* pBorder, double fScale, sal_uInt16 nMaxWidth = SAL_MAX_UINT16 );
/** Sets a new reference point handling mode, does not modify other settings. */
void SetRefMode( RefMode eRefMode );
/** Sets a new color, does not modify other settings. */
void SetColorPrim( const Color& rColor );
void SetColorSecn( const Color& rColor );
/** Sets whether to use dotted style for single hair lines. */
void SetType( SvxBorderLineStyle nType );
/** Mirrors this style (exchanges primary and secondary), if it is a double frame style. */
Style& MirrorSelf();
/** Enables the Word-compatible Style comparison code. */
void SetWordTableCell(bool bWordTableCell);
bool operator==( const Style& rOther) const;
bool operator<( const Style& rOther) const;
};
inline bool operator>( const Style& rL, const Style& rR ) { return rR.operator<(rL); }
}
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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