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libreoffice/svx/source/dialog/framelink.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
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************************************************************************/
#include <svx/framelink.hxx>
#include <math.h>
#include <vcl/outdev.hxx>
#include <editeng/borderline.hxx>
#include <svtools/borderhelper.hxx>
// ----------------------------------------------------------------------------
/** Define to select the drawing mode of thin dotted lines.
0 = Draw lines using an own implementation (recommended). Draws always
little dots in an appropriate distance.
1 = Draw dotted lines using vcl/LineInfo. Results in dashed lines instead
of dotted lines, which may look ugly for diagonal lines.
*/
#define SVX_FRAME_USE_LINEINFO 0
// ----------------------------------------------------------------------------
#if SVX_FRAME_USE_LINEINFO
#include <vcl/lineinfo.hxx>
#else
#include <basegfx/polygon/b2dpolygon.hxx>
#include <basegfx/polygon/b2dpolygontools.hxx>
#endif
#include <drawinglayer/primitive2d/borderlineprimitive2d.hxx>
#include <drawinglayer/primitive2d/clippedborderlineprimitive2d.hxx>
using namespace editeng;
namespace svx {
namespace frame {
// ============================================================================
// ============================================================================
namespace {
typedef std::vector< Point > PointVec;
// ----------------------------------------------------------------------------
// Link result structs for horizontal and vertical lines and borders.
/** Result struct used by the horizontal/vertical frame link functions.
This struct is used to return coordinate offsets for one end of a single
line in a frame border, i.e. the left end of the primary line of a
horizontal frame border.
1) Usage for horizontal lines
If this struct is returned by the lclLinkHorFrameBorder() function, each
member refers to the X coordinate of one edge of a single line end in a
horizontal frame border. They specify an offset to modify this coordinate
when the line is painted. The values in this struct may change a
rectangular line shape into a line with slanted left or right border, which
is used to connect the line with diagonal lines.
Usage for a left line end: Usage for a right line end:
mnOffs1 mnOffs1
<-------> <------->
+-------------------------------+
| the original horizontal line |
+-------------------------------+
<-------> <------->
mnOffs2 mnOffs2
2) Usage for vertical lines
If this struct is returned by the lclLinkVerFrameBorder() function, each
member refers to the Y coordinate of one edge of a single line end in a
vertical frame border. They specify an offset to modify this coordinate
when the line is painted. The values in this struct may change a
rectangular line shape into a line with slanted top or bottom border, which
is used to connect the line with diagonal lines.
Usage for a top line end: mnOffs1 ^ ^ mnOffs2
| +-------+ |
v | | v
| |
| |
the original vertical line ---> | |
| |
| |
^ | | ^
| +-------+ |
Usage for a bottom line end: mnOffs1 v v mnOffs2
*/
struct LineEndResult
{
long mnOffs1; /// Offset for top or left edge, dependent of context.
long mnOffs2; /// Offset for bottom or right edge, dependent of context
inline explicit LineEndResult() : mnOffs1( 0 ), mnOffs2( 0 ) {}
inline void Swap() { std::swap( mnOffs1, mnOffs2 ); }
inline void Negate() { mnOffs1 = -mnOffs1; mnOffs2 = -mnOffs2; }
};
/** Result struct used by the horizontal/vertical frame link functions.
This struct contains the linking results for one end of a frame border,
including both the primary and secondary line ends.
*/
struct BorderEndResult
{
LineEndResult maPrim; /// Result for primary line.
LineEndResult maSecn; /// Result for secondary line.
LineEndResult maGap; /// Result for gap line.
inline void Negate() { maPrim.Negate(); maSecn.Negate(); maGap.Negate(); }
};
/** Result struct used by the horizontal/vertical frame link functions.
This struct contains the linking results for both frame border ends, and
therefore for the complete frame border.
*/
struct BorderResult
{
BorderEndResult maBeg; /// Result for begin of border line (left or top end).
BorderEndResult maEnd; /// Result for end of border line (right or bottom end).
};
// ----------------------------------------------------------------------------
// Link result structs for diagonal lines and borders.
/** Result struct used by the diagonal frame link functions.
This struct contains the linking results for one line of a diagonal frame
border.
*/
struct DiagLineResult
{
long mnLClip; /// Offset for left border of clipping rectangle.
long mnRClip; /// Offset for right border of clipping rectangle.
long mnTClip; /// Offset for top border of clipping rectangle.
long mnBClip; /// Offset for bottom border of clipping rectangle.
inline explicit DiagLineResult() : mnLClip( 0 ), mnRClip( 0 ), mnTClip( 0 ), mnBClip( 0 ) {}
};
/** Result struct used by the diagonal frame link functions.
This struct contains the linking results for one diagonal frame border.
*/
struct DiagBorderResult
{
DiagLineResult maPrim; /// Result for primary line.
DiagLineResult maSecn; /// Result for secondary line.
};
/** Result struct used by the diagonal frame link functions.
This struct contains the linking results for both diagonal frame borders.
*/
struct DiagBordersResult
{
DiagBorderResult maTLBR; /// Result for top-left to bottom-right frame border.
DiagBorderResult maBLTR; /// Result for bottom-left to top-right frame border.
};
// ----------------------------------------------------------------------------
/** A helper struct containing two points of a line.
*/
struct LinePoints
{
Point maBeg; /// Start position of the line.
Point maEnd; /// End position of the line.
explicit LinePoints( const Point& rBeg, const Point& rEnd ) :
maBeg( rBeg ), maEnd( rEnd ) {}
explicit LinePoints( const Rectangle& rRect, bool bTLBR ) :
maBeg( bTLBR ? rRect.TopLeft() : rRect.TopRight() ),
maEnd( bTLBR ? rRect.BottomRight() : rRect.BottomLeft() ) {}
};
// ============================================================================
/** Rounds and casts a double value to a long value. */
inline long lclD2L( double fValue )
{
return static_cast< long >( (fValue < 0.0) ? (fValue - 0.5) : (fValue + 0.5) );
}
/** Converts a width in twips to a width in another map unit (specified by fScale). */
double lclScaleValue( double nValue, double fScale, sal_uInt16 nMaxWidth )
{
return std::min<double>(nValue * fScale, nMaxWidth);
}
// ----------------------------------------------------------------------------
// Line width offset calculation.
/** Returns the start offset of the single/primary line across the frame border.
All following lclGet*Beg() and lclGet*End() functions return sub units to
increase the computational accuracy, where 256 sub units are equal to
1 map unit of the used OutputDevice.
The following pictures show the upper end of a vertical frame border and
illustrates the return values of all following lclGet*Beg() and lclGet*End()
functions. The first picture shows a single frame border, the second picture
shows a double frame border.
The functions regard the reference point handling mode of the passed border
style.
REFMODE_CENTERED:
All returned offsets are relative to the middle position of the frame
border (offsets left of the middle are returned negative, offsets right
of the middle are returned positive).
REFMODE_BEGIN:
All returned offsets are relative to the begin of the frame border
(lclGetBeg() always returns 0).
REFMODE_END:
All returned offsets are relative to the end of the frame border
(lclGetEnd() always returns 0).
|<- lclGetEnd()
|<- lclGetBeforeBeg() |<- lclGetPrimEnd()
| |
||<- lclGetBeg() ||<- lclGetBehindEnd()
|| ||
|#################################|
direction of | #################################
the frame | #################################
border is | #################################
vertical | #################################
v #################################
|
|<- middle of the frame border
lclGetDistEnd() ->||<- lclGetSecnBeg()
||
lclGetBeg() ->| lclGetDistBeg() ->| || |<- lclGetEnd()
| | || |
lclGetBeforeBeg()->|| lclGetPrimEnd() ->|| || ||<- lclGetBehindEnd()
|| || || ||
|######################| |#############|
direction of | ###################### #############
the frame | ###################### #############
border is | ###################### #############
vertical | ###################### | #############
v ###################### | #############
primary line | secondary line
|
|<- middle of the frame border
@return
The start offset of the single/primary line relative to the reference
position of the frame border (sub units; 0 for invisible or one pixel
wide single frame styles).
*/
long lclGetBeg( const Style& rBorder )
{
long nPos = 0;
switch( rBorder.GetRefMode() )
{
case REFMODE_CENTERED: if( rBorder.Prim() ) nPos = -128 * (rBorder.GetWidth() - 1); break;
case REFMODE_END: if( rBorder.Prim() ) nPos = -256 * (rBorder.GetWidth() - 1); break;
case REFMODE_BEGIN: break;
}
return nPos;
}
/** Returns the end offset of the single/secondary line across the frame border.
@descr See description of lclGetBeg() for an illustration.
@return The end offset of the single/secondary line relative to the
reference position of the frame border (sub units; 0 for invisible or one
pixel wide single frame styles). */
long lclGetEnd( const Style& rBorder )
{
long nPos = 0;
switch( rBorder.GetRefMode() )
{
case REFMODE_CENTERED: if( rBorder.Prim() ) nPos = 128 * (rBorder.GetWidth() - 1); break;
case REFMODE_BEGIN: if( rBorder.Prim() ) nPos = 256 * (rBorder.GetWidth() - 1); break;
case REFMODE_END: break;
}
return nPos;
}
/** Returns the end offset of the primary line across the frame border.
@descr See description of lclGetBeg() for an illustration.
@return The end offset of the primary line relative to the reference
position of the frame border (sub units; the end of the primary line in a
double frame style, otherwise the same as lclGetEnd()). */
inline long lclGetPrimEnd( const Style& rBorder )
{ return rBorder.Prim() ? (lclGetBeg( rBorder ) + 256 * (rBorder.Prim() - 1)) : 0; }
/** Returns the start offset of the secondary line across the frame border.
@descr See description of lclGetBeg() for an illustration.
@return The start offset of the secondary line relative to the reference
position of the frame border (sub units; 0 for single/invisible border
styles). */
inline long lclGetSecnBeg( const Style& rBorder )
{ return rBorder.Secn() ? (lclGetEnd( rBorder ) - 256 * (rBorder.Secn() - 1)) : 0; }
/** Returns the start offset of the distance space across the frame border.
@descr See description of lclGetBeg() for an illustration.
@return The start offset of the distance space relative to the reference
position of the frame border (sub units; 0 for single/invisible border
styles). */
inline long lclGetDistBeg( const Style& rBorder )
{ return rBorder.Secn() ? (lclGetBeg( rBorder ) + 256 * rBorder.Prim()) : 0; }
/** Returns the end offset of the distance space across the frame border.
@descr See description of lclGetBeg() for an illustration.
@return The end offset of the distance space relative to the reference
position of the frame border (sub units; 0 for single/invisible border
styles). */
inline long lclGetDistEnd( const Style& rBorder )
{ return rBorder.Secn() ? (lclGetEnd( rBorder ) - 256 * rBorder.Secn()) : 0; }
/** Returns the offset before start of single/primary line across the frame border.
@descr See description of lclGetBeg() for an illustration.
@return The offset directly before start of single/primary line relative
to the reference position of the frame border (sub units; a value one less
than lclGetBeg() for visible frame styles, or 0 for invisible frame style). */
inline long lclGetBeforeBeg( const Style& rBorder )
{ return rBorder.Prim() ? (lclGetBeg( rBorder ) - 256) : 0; }
/** Returns the offset behind end of single/secondary line across the frame border.
@descr See description of lclGetBeg() for an illustration.
@return The offset directly behind end of single/secondary line relative
to the reference position of the frame border (sub units; a value one
greater than lclGetEnd() for visible frame styles, or 0 for invisible frame
style). */
inline long lclGetBehindEnd( const Style& rBorder )
{ return rBorder.Prim() ? (lclGetEnd( rBorder ) + 256) : 0; }
// ============================================================================
// Linking functions
// ============================================================================
// ----------------------------------------------------------------------------
// Linking of single horizontal line ends.
/** Calculates X offsets for the left end of a single horizontal frame border.
See DrawHorFrameBorder() function for a description of all parameters.
@param rResult
(out-param) The contained values (sub units) specify offsets for the
X coordinates of the left line end.
*/
void lclLinkLeftEnd_Single(
LineEndResult& rResult, const Style& rBorder,
const DiagStyle& rLFromTR, const Style& rLFromT, const Style& rLFromL, const Style& rLFromB, const DiagStyle& rLFromBR )
{
// both vertical and diagonal frame borders are double
if( rLFromT.Secn() && rLFromB.Secn() && rLFromTR.Secn() && rLFromBR.Secn() )
{
// take left position of upper and lower secondary start
rResult.mnOffs1 = GetBLDiagOffset( lclGetBeg( rBorder ), lclGetSecnBeg( rLFromTR ), rLFromTR.GetAngle() );
rResult.mnOffs2 = GetTLDiagOffset( lclGetEnd( rBorder ), lclGetSecnBeg( rLFromBR ), rLFromBR.GetAngle() );
}
else
{
// both vertical frame borders are double
if( rLFromT.Secn() && rLFromB.Secn() )
rResult.mnOffs1 = (!rLFromTR.Secn() && !rLFromBR.Secn() && (rLFromT.GetWidth() == rLFromB.GetWidth())) ?
// don't overdraw vertical borders with equal width
lclGetBehindEnd( rLFromT ) :
// take leftmost start of both secondary lines (#46488#)
std::min( lclGetSecnBeg( rLFromT ), lclGetSecnBeg( rLFromB ) );
// single border with equal width coming from left
else if( !rLFromL.Secn() && (rLFromL.Prim() == rBorder.Prim()) )
// draw to connection point
rResult.mnOffs1 = 0;
// single border coming from left
else if( !rLFromL.Secn() && rLFromL.Prim() )
{
if( rLFromL.Prim() == rBorder.Prim() )
// draw to reference position, if from left has equal width
rResult.mnOffs1 = 0;
else
rResult.mnOffs1 = (rLFromL < rBorder) ?
// take leftmost start of both frame borders, if from left is thinner
std::min( lclGetBeg( rLFromT ), lclGetBeg( rLFromB ) ) :
// do not overdraw vertical, if from left is thicker
std::max( lclGetBehindEnd( rLFromT ), lclGetBehindEnd( rLFromB ) );
}
// no border coming from left
else if( !rLFromL.Prim() )
// don't overdraw vertical borders with equal width
rResult.mnOffs1 = (rLFromT.GetWidth() == rLFromB.GetWidth()) ?
lclGetBehindEnd( rLFromT ) :
std::min( lclGetBeg( rLFromT ), lclGetBeg( rLFromB ) );
// double frame border coming from left and from top
else if( rLFromT.Secn() )
// do not overdraw the vertical double frame border
rResult.mnOffs1 = lclGetBehindEnd( rLFromT );
// double frame border coming from left and from bottom
else if( rLFromB.Secn() )
// do not overdraw the vertical double frame border
rResult.mnOffs1 = lclGetBehindEnd( rLFromB );
// double frame border coming from left, both vertical frame borders are single or off
else
// draw from leftmost start of both frame borders, if from left is not thicker
rResult.mnOffs1 = (rLFromL <= rBorder) ?
std::min( lclGetBeg( rLFromT ), lclGetBeg( rLFromB ) ) :
std::max( lclGetBehindEnd( rLFromT ), lclGetBehindEnd( rLFromB ) );
// bottom-left point is equal to top-left point (results in rectangle)
rResult.mnOffs2 = rResult.mnOffs1;
}
}
/** Calculates X offsets for the left end of a primary horizontal line.
See DrawHorFrameBorder() function for a description of all parameters.
@param rResult
(out-param) The contained values (sub units) specify offsets for the
X coordinates of the left end of the primary line.
*/
void lclLinkLeftEnd_Prim(
LineEndResult& rResult, const Style& rBorder,
const DiagStyle& rLFromTR, const Style& rLFromT, const Style& rLFromL, const Style& rLFromB, const DiagStyle& /*rLFromBR*/ )
{
// double diagonal frame border coming from top right
if( rLFromTR.Secn() )
{
// draw from where secondary diagonal line meets the own primary
rResult.mnOffs1 = GetBLDiagOffset( lclGetBeg( rBorder ), lclGetSecnBeg( rLFromTR ), rLFromTR.GetAngle() );
rResult.mnOffs2 = GetBLDiagOffset( lclGetPrimEnd( rBorder ), lclGetSecnBeg( rLFromTR ), rLFromTR.GetAngle() );
}
// no or single diagonal frame border - ignore it
else
{
// double frame border coming from top
if( rLFromT.Secn() )
// draw from left edge of secondary vertical
rResult.mnOffs1 = lclGetSecnBeg( rLFromT );
// double frame border coming from left (from top is not double)
else if( rLFromL.Secn() )
// do not overdraw single frame border coming from top
rResult.mnOffs1 = (rLFromL.GetWidth() == rBorder.GetWidth()) ?
0 : lclGetBehindEnd( rLFromT );
// double frame border coming from bottom (from top and from left are not double)
else if( rLFromB.Secn() )
// draw from left edge of primary vertical from bottom
rResult.mnOffs1 = lclGetBeg( rLFromB );
// no other frame border is double
else
// do not overdraw vertical frame borders
rResult.mnOffs1 = std::max( lclGetBehindEnd( rLFromT ), lclGetBehindEnd( rLFromB ) );
// bottom-left point is equal to top-left point (results in rectangle)
rResult.mnOffs2 = rResult.mnOffs1;
}
}
/** Calculates X offsets for the left end of a secondary horizontal line.
See DrawHorFrameBorder() function for a description of all parameters.
@param rResult
(out-param) The contained values (sub units) specify offsets for the
X coordinates of the left end of the secondary line.
*/
void lclLinkLeftEnd_Secn(
LineEndResult& rResult, const Style& rBorder,
const DiagStyle& rLFromTR, const Style& rLFromT, const Style& rLFromL, const Style& rLFromB, const DiagStyle& rLFromBR )
{
/* Recycle lclLinkLeftEnd_Prim() function with mirrored horizontal borders. */
lclLinkLeftEnd_Prim( rResult, rBorder.Mirror(), rLFromBR, rLFromB, rLFromL.Mirror(), rLFromT, rLFromTR );
rResult.Swap();
}
void lclLinkLeftEnd_Gap(
LineEndResult& rResult, const Style& rBorder,
const DiagStyle& /*rLFromTR*/, const Style& rLFromT, const Style& rLFromL, const Style& rLFromB, const DiagStyle& /*rLFromBR*/ )
{
if ( rLFromT.Secn() )
rResult.mnOffs1 = lclGetDistBeg( rLFromT );
else if ( rLFromL.Secn( ) )
rResult.mnOffs1 = ( rLFromL.GetWidth() == rBorder.GetWidth() )?
0 : lclGetBehindEnd( rLFromT );
else if ( rLFromB.Secn( ) )
rResult.mnOffs1 = lclGetDistBeg( rLFromB );
else
rResult.mnOffs1 = std::max( lclGetBehindEnd( rLFromT ), lclGetBehindEnd( rLFromB ) );
rResult.mnOffs2 = rResult.mnOffs1;
}
// ----------------------------------------------------------------------------
// Linking of horizontal frame border ends.
/** Calculates X offsets for the left end of a horizontal frame border.
This function can be used for single and double frame borders.
See DrawHorFrameBorder() function for a description of all parameters.
@param rResult
(out-param) The contained values (sub units) specify offsets for the
X coordinates of the left end of the line(s) in the frame border.
*/
void lclLinkLeftEnd(
BorderEndResult& rResult, const Style& rBorder,
const DiagStyle& rLFromTR, const Style& rLFromT, const Style& rLFromL, const Style& rLFromB, const DiagStyle& rLFromBR )
{
if( rBorder.Secn() )
{
// current frame border is double
lclLinkLeftEnd_Prim( rResult.maPrim, rBorder, rLFromTR, rLFromT, rLFromL, rLFromB, rLFromBR );
lclLinkLeftEnd_Secn( rResult.maSecn, rBorder, rLFromTR, rLFromT, rLFromL, rLFromB, rLFromBR );
lclLinkLeftEnd_Gap( rResult.maGap, rBorder, rLFromTR, rLFromT, rLFromL, rLFromB, rLFromBR );
}
else if( rBorder.Prim() )
{
// current frame border is single
lclLinkLeftEnd_Single( rResult.maPrim, rBorder, rLFromTR, rLFromT, rLFromL, rLFromB, rLFromBR );
}
else
{
SAL_WARN( "svx.dialog", "lclLinkLeftEnd - called for invisible frame style" );
}
}
/** Calculates X offsets for the right end of a horizontal frame border.
This function can be used for single and double frame borders.
See DrawHorFrameBorder() function for a description of all parameters.
@param rResult
(out-param) The contained values (sub units) specify offsets for the
X coordinates of the right end of the line(s) in the frame border.
*/
void lclLinkRightEnd(
BorderEndResult& rResult, const Style& rBorder,
const DiagStyle& rRFromTL, const Style& rRFromT, const Style& rRFromR, const Style& rRFromB, const DiagStyle& rRFromBL )
{
/* Recycle lclLinkLeftEnd() function with mirrored vertical borders. */
lclLinkLeftEnd( rResult, rBorder, rRFromTL.Mirror(), rRFromT.Mirror(), rRFromR, rRFromB.Mirror(), rRFromBL.Mirror() );
rResult.Negate();
}
// ----------------------------------------------------------------------------
// Linking of horizontal and vertical frame borders.
/** Calculates X offsets for all line ends of a horizontal frame border.
This function can be used for single and double frame borders.
See DrawHorFrameBorder() function for a description of all parameters.
@param rResult
(out-param) The contained values (sub units) specify offsets for the
X coordinates of both ends of the line(s) in the frame border. To get
the actual X coordinates to draw the lines, these offsets have to be
added to the X coordinates of the reference points of the frame border
(the offsets may be negative).
*/
void lclLinkHorFrameBorder(
BorderResult& rResult, const Style& rBorder,
const DiagStyle& rLFromTR, const Style& rLFromT, const Style& rLFromL, const Style& rLFromB, const DiagStyle& rLFromBR,
const DiagStyle& rRFromTL, const Style& rRFromT, const Style& rRFromR, const Style& rRFromB, const DiagStyle& rRFromBL )
{
lclLinkLeftEnd( rResult.maBeg, rBorder, rLFromTR, rLFromT, rLFromL, rLFromB, rLFromBR );
lclLinkRightEnd( rResult.maEnd, rBorder, rRFromTL, rRFromT, rRFromR, rRFromB, rRFromBL );
}
/** Calculates Y offsets for all line ends of a vertical frame border.
This function can be used for single and double frame borders.
See DrawVerFrameBorder() function for a description of all parameters.
@param rResult
(out-param) The contained values (sub units) specify offsets for the
Y coordinates of both ends of the line(s) in the frame border. To get
the actual Y coordinates to draw the lines, these offsets have to be
added to the Y coordinates of the reference points of the frame border
(the offsets may be negative).
*/
void lclLinkVerFrameBorder(
BorderResult& rResult, const Style& rBorder,
const DiagStyle& rTFromBL, const Style& rTFromL, const Style& rTFromT, const Style& rTFromR, const DiagStyle& rTFromBR,
const DiagStyle& rBFromTL, const Style& rBFromL, const Style& rBFromB, const Style& rBFromR, const DiagStyle& rBFromTR )
{
/* Recycle lclLinkHorFrameBorder() function with correct parameters. The
frame border is virtually mirrored at the top-left to bottom-right
diagonal. rTFromBR and rBFromTL are mirrored to process their primary
and secondary lines correctly. */
lclLinkHorFrameBorder( rResult, rBorder,
rTFromBL, rTFromL, rTFromT, rTFromR, rTFromBR.Mirror(),
rBFromTL.Mirror(), rBFromL, rBFromB, rBFromR, rBFromTR );
}
// ============================================================================
// ----------------------------------------------------------------------------
// Linking of diagonal frame borders.
/** Calculates clipping offsets for a top-left to bottom-right frame border.
This function can be used for single and double frame borders.
See DrawDiagFrameBorders() function for a description of all parameters.
@param rResult
(out-param) The contained values (sub units) specify offsets for all
borders of the reference rectangle containing the diagonal frame border.
*/
void lclLinkTLBRFrameBorder(
DiagBorderResult& rResult, const Style& rBorder,
const Style& rTLFromB, const Style& rTLFromR, const Style& rBRFromT, const Style& rBRFromL )
{
bool bIsDbl = rBorder.Secn() != 0;
rResult.maPrim.mnLClip = lclGetBehindEnd( rTLFromB );
rResult.maPrim.mnRClip = (bIsDbl && rBRFromT.Secn()) ? lclGetEnd( rBRFromT ) : lclGetBeforeBeg( rBRFromT );
rResult.maPrim.mnTClip = (bIsDbl && rTLFromR.Secn()) ? lclGetBeg( rTLFromR ) : lclGetBehindEnd( rTLFromR );
rResult.maPrim.mnBClip = lclGetBeforeBeg( rBRFromL );
if( bIsDbl )
{
rResult.maSecn.mnLClip = rTLFromB.Secn() ? lclGetBeg( rTLFromB ) : lclGetBehindEnd( rTLFromB );
rResult.maSecn.mnRClip = lclGetBeforeBeg( rBRFromT );
rResult.maSecn.mnTClip = lclGetBehindEnd( rTLFromR );
rResult.maSecn.mnBClip = rBRFromL.Secn() ? lclGetEnd( rBRFromL ) : lclGetBeforeBeg( rBRFromL );
}
}
/** Calculates clipping offsets for a bottom-left to top-right frame border.
This function can be used for single and double frame borders.
See DrawDiagFrameBorders() function for a description of all parameters.
@param rResult
(out-param) The contained values (sub units) specify offsets for all
borders of the reference rectangle containing the diagonal frame border.
*/
void lclLinkBLTRFrameBorder(
DiagBorderResult& rResult, const Style& rBorder,
const Style& rBLFromT, const Style& rBLFromR, const Style& rTRFromB, const Style& rTRFromL )
{
bool bIsDbl = rBorder.Secn() != 0;
rResult.maPrim.mnLClip = lclGetBehindEnd( rBLFromT );
rResult.maPrim.mnRClip = (bIsDbl && rTRFromB.Secn()) ? lclGetEnd( rTRFromB ) : lclGetBeforeBeg( rTRFromB );
rResult.maPrim.mnTClip = lclGetBehindEnd( rTRFromL );
rResult.maPrim.mnBClip = (bIsDbl && rBLFromR.Secn()) ? lclGetEnd( rBLFromR ) : lclGetBeforeBeg( rBLFromR );
if( bIsDbl )
{
rResult.maSecn.mnLClip = rBLFromT.Secn() ? lclGetBeg( rBLFromT ) : lclGetBehindEnd( rBLFromT );
rResult.maSecn.mnRClip = lclGetBeforeBeg( rTRFromB );
rResult.maSecn.mnTClip = rTRFromL.Secn() ? lclGetBeg( rTRFromL ) : lclGetBehindEnd( rTRFromL );
rResult.maSecn.mnBClip = lclGetBeforeBeg( rBLFromR );
}
}
/** Calculates clipping offsets for both diagonal frame borders.
This function can be used for single and double frame borders.
See DrawDiagFrameBorders() function for a description of all parameters.
@param rResult
(out-param) The contained values (sub units) specify offsets for all
borders of the reference rectangle containing the diagonal frame
borders.
*/
void lclLinkDiagFrameBorders(
DiagBordersResult& rResult, const Style& rTLBR, const Style& rBLTR,
const Style& rTLFromB, const Style& rTLFromR, const Style& rBRFromT, const Style& rBRFromL,
const Style& rBLFromT, const Style& rBLFromR, const Style& rTRFromB, const Style& rTRFromL )
{
lclLinkTLBRFrameBorder( rResult.maTLBR, rTLBR, rTLFromB, rTLFromR, rBRFromT, rBRFromL );
lclLinkBLTRFrameBorder( rResult.maBLTR, rBLTR, rBLFromT, rBLFromR, rTRFromB, rTRFromL );
}
// ============================================================================
// Drawing functions
// ============================================================================
// ----------------------------------------------------------------------------
// Simple helper functions
/** Converts sub units to OutputDevice map units. */
inline long lclToMapUnit( long nSubUnits )
{
return ((nSubUnits < 0) ? (nSubUnits - 127) : (nSubUnits + 128)) / 256;
}
/** Converts a point in sub units to an OutputDevice point. */
inline Point lclToMapUnit( long nSubXPos, long nSubYPos )
{
return Point( lclToMapUnit( nSubXPos ), lclToMapUnit( nSubYPos ) );
}
/** Returns a polygon constructed from a vector of points. */
inline Polygon lclCreatePolygon( const PointVec& rPoints )
{
return Polygon( static_cast< sal_uInt16 >( rPoints.size() ), &rPoints[ 0 ] );
}
/** Returns a polygon constructed from the five passed points. */
Polygon lclCreatePolygon( const Point& rP1, const Point& rP2, const Point& rP3, const Point& rP4, const Point& rP5 )
{
PointVec aPoints;
aPoints.reserve( 5 );
aPoints.push_back( rP1 );
aPoints.push_back( rP2 );
aPoints.push_back( rP3 );
aPoints.push_back( rP4 );
aPoints.push_back( rP5 );
return lclCreatePolygon( aPoints );
}
/** Sets the color of the passed frame style to the output device.
Sets the line color and fill color in the output device.
@param rDev
The output device the color has to be set to. The old colors are pushed
onto the device's stack and can be restored with a call to
OutputDevice::Pop(). Please take care about the correct calling order
of Pop() if this function is used with other functions pushing
something onto the stack.
@param rStyle
The border style that contains the line color to be set to the device.
*/
void lclSetColorToOutDev( OutputDevice& rDev, const Color& rColor, const Color* pForceColor )
{
rDev.Push( PUSH_LINECOLOR | PUSH_FILLCOLOR );
rDev.SetLineColor( pForceColor ? *pForceColor : rColor );
rDev.SetFillColor( pForceColor ? *pForceColor : rColor );
}
// ----------------------------------------------------------------------------
// ============================================================================
// Drawing of horizontal frame borders.
/** Draws a horizontal thin or thick line into the passed output device.
The X coordinates of the edges of the line are adjusted according to the
passed LineEndResult structs. A one pixel wide line can be drawn dotted.
*/
void lclDrawHorLine(
OutputDevice& rDev,
const Point& rLPos, const LineEndResult& rLRes,
const Point& rRPos, const LineEndResult& rRRes,
long nTOffs, long nBOffs, SvxBorderStyle nDashing )
{
LinePoints aTPoints( rLPos + lclToMapUnit( rLRes.mnOffs1, nTOffs ), rRPos + lclToMapUnit( rRRes.mnOffs1, nTOffs ) );
LinePoints aBPoints( rLPos + lclToMapUnit( rLRes.mnOffs2, nBOffs ), rRPos + lclToMapUnit( rRRes.mnOffs2, nBOffs ) );
sal_uInt32 nWidth = lclToMapUnit( abs( nTOffs ) ) + lclToMapUnit( abs( nBOffs ) );
if ( ( nTOffs >= 0 && nBOffs >= 0 ) || ( nTOffs <= 0 && nBOffs <= 0 ) )
nWidth = abs( lclToMapUnit( nTOffs ) - lclToMapUnit( nBOffs ) ) + 1;
Point rLMid = ( aTPoints.maBeg + aBPoints.maBeg ) / 2;
Point rRMid = ( aTPoints.maEnd + aBPoints.maEnd ) / 2;
::svtools::DrawLine( rDev, rLMid, rRMid, nWidth, nDashing );
}
/** Draws a horizontal frame border into the passed output device.
@param rLPos
The top-left or bottom-left reference point of the diagonal frame border.
@param rRPos
The top-right or bottom-right reference point of the diagonal frame border.
@param rBorder
The frame style used to draw the border.
@param rResult
The X coordinates of the edges of all lines of the frame border are
adjusted according to the offsets contained here.
*/
void lclDrawHorFrameBorder(
OutputDevice& rDev, const Point& rLPos, const Point& rRPos,
const Style& rBorder, const BorderResult& rResult, const Color* pForceColor )
{
DBG_ASSERT( rBorder.Prim(), "svx::frame::lclDrawHorFrameBorder - line not visible" );
DBG_ASSERT( rLPos.X() <= rRPos.X(), "svx::frame::lclDrawHorFrameBorder - wrong order of line ends" );
DBG_ASSERT( rLPos.Y() == rRPos.Y(), "svx::frame::lclDrawHorFrameBorder - line not horizontal" );
if( rLPos.X() <= rRPos.X() )
{
if ( rBorder.UseGapColor( ) )
{
lclSetColorToOutDev( rDev, rBorder.GetColorGap(), pForceColor );
lclDrawHorLine( rDev, rLPos, rResult.maBeg.maGap, rRPos, rResult.maEnd.maGap,
lclGetPrimEnd( rBorder ), lclGetSecnBeg( rBorder ), rBorder.Type() );
rDev.Pop(); // Gap color
}
lclSetColorToOutDev( rDev, rBorder.GetColorPrim(), pForceColor );
lclDrawHorLine( rDev, rLPos, rResult.maBeg.maPrim, rRPos, rResult.maEnd.maPrim,
lclGetBeg( rBorder ), lclGetPrimEnd( rBorder ), rBorder.Type() );
rDev.Pop(); // colors
if( rBorder.Secn() )
{
lclSetColorToOutDev( rDev, rBorder.GetColorSecn(), pForceColor );
lclDrawHorLine( rDev, rLPos, rResult.maBeg.maSecn, rRPos, rResult.maEnd.maSecn,
lclGetSecnBeg( rBorder ), lclGetEnd( rBorder ), rBorder.Type() );
rDev.Pop(); // colors
}
}
}
// ----------------------------------------------------------------------------
// Drawing of vertical frame borders.
/** Draws a vertical thin or thick line into the passed output device.
The Y coordinates of the edges of the line are adjusted according to the
passed LineEndResult structs. A one pixel wide line can be drawn dotted.
*/
void lclDrawVerLine(
OutputDevice& rDev,
const Point& rTPos, const LineEndResult& rTRes,
const Point& rBPos, const LineEndResult& rBRes,
long nLOffs, long nROffs, SvxBorderStyle nDashing )
{
LinePoints aLPoints( rTPos + lclToMapUnit( nLOffs, rTRes.mnOffs1 ), rBPos + lclToMapUnit( nLOffs, rBRes.mnOffs1 ) );
LinePoints aRPoints( rTPos + lclToMapUnit( nROffs, rTRes.mnOffs2 ), rBPos + lclToMapUnit( nROffs, rBRes.mnOffs2 ) );
sal_uInt32 nWidth = lclToMapUnit( abs( nLOffs ) ) + lclToMapUnit( abs( nROffs ) );
if ( ( nLOffs >= 0 && nROffs >= 0 ) || ( nLOffs <= 0 && nROffs <= 0 ) )
nWidth = abs( lclToMapUnit( nLOffs ) - lclToMapUnit( nROffs ) ) + 1;
Point rTMid = ( aLPoints.maBeg + aRPoints.maBeg ) / 2;
Point rBMid = ( aLPoints.maEnd + aRPoints.maEnd ) / 2;
::svtools::DrawLine( rDev, rTMid, rBMid, nWidth, nDashing );
}
/** Draws a vertical frame border into the passed output device.
@param rTPos
The top-left or top-right reference point of the diagonal frame border.
@param rBPos
The bottom-left or bottom-right reference point of the diagonal frame border.
@param rBorder
The frame style used to draw the border.
@param rResult
The Y coordinates of the edges of all lines of the frame border are
adjusted according to the offsets contained here.
*/
void lclDrawVerFrameBorder(
OutputDevice& rDev, const Point& rTPos, const Point& rBPos,
const Style& rBorder, const BorderResult& rResult, const Color* pForceColor )
{
DBG_ASSERT( rBorder.Prim(), "svx::frame::lclDrawVerFrameBorder - line not visible" );
DBG_ASSERT( rTPos.Y() <= rBPos.Y(), "svx::frame::lclDrawVerFrameBorder - wrong order of line ends" );
DBG_ASSERT( rTPos.X() == rBPos.X(), "svx::frame::lclDrawVerFrameBorder - line not vertical" );
if( rTPos.Y() <= rBPos.Y() )
{
if ( rBorder.UseGapColor( ) )
{
lclSetColorToOutDev( rDev, rBorder.GetColorGap(), pForceColor );
lclDrawVerLine( rDev, rTPos, rResult.maBeg.maGap, rBPos, rResult.maEnd.maGap,
lclGetPrimEnd( rBorder ), lclGetSecnBeg( rBorder ), rBorder.Type() );
rDev.Pop(); // Gap color
}
lclSetColorToOutDev( rDev, rBorder.GetColorPrim(), pForceColor );
lclDrawVerLine( rDev, rTPos, rResult.maBeg.maPrim, rBPos, rResult.maEnd.maPrim,
lclGetBeg( rBorder ), lclGetPrimEnd( rBorder ), rBorder.Type() );
rDev.Pop(); // colors
if( rBorder.Secn() )
{
lclSetColorToOutDev( rDev, rBorder.GetColorSecn(), pForceColor );
lclDrawVerLine( rDev, rTPos, rResult.maBeg.maSecn, rBPos, rResult.maEnd.maSecn,
lclGetSecnBeg( rBorder ), lclGetEnd( rBorder ), rBorder.Type() );
rDev.Pop(); // colors
}
}
}
// ============================================================================
// Drawing of diagonal frame borders, incudes clipping functions.
/** Returns the drawing coordinates for a diagonal thin line.
This function can be used for top-left to bottom-right and for bottom-left
to top-right lines.
@param rRect
The reference rectangle of the diagonal frame border.
@param bTLBR
true = top-left to bottom-right; false = bottom-left to top-right.
@param nDiagOffs
Width offset (sub units) across the diagonal frame border.
@return
A struct containg start and end position of the diagonal line.
*/
LinePoints lclGetDiagLineEnds( const Rectangle& rRect, bool bTLBR, long nDiagOffs )
{
LinePoints aPoints( rRect, bTLBR );
bool bVert = rRect.GetWidth() < rRect.GetHeight();
double fAngle = bVert ? GetVerDiagAngle( rRect ) : GetHorDiagAngle( rRect );
// vertical top-left to bottom-right borders are handled mirrored
if( bVert && bTLBR )
nDiagOffs = -nDiagOffs;
long nTOffs = bTLBR ? GetTLDiagOffset( 0, nDiagOffs, fAngle ) : GetTRDiagOffset( 0, nDiagOffs, fAngle );
long nBOffs = bTLBR ? GetBRDiagOffset( 0, nDiagOffs, fAngle ) : GetBLDiagOffset( 0, nDiagOffs, fAngle );
// vertical bottom-left to top-right borders are handled with exchanged end points
if( bVert && !bTLBR )
std::swap( nTOffs, nBOffs );
(bVert ? aPoints.maBeg.Y() : aPoints.maBeg.X()) += lclToMapUnit( nTOffs );
(bVert ? aPoints.maEnd.Y() : aPoints.maEnd.X()) += lclToMapUnit( nBOffs );
return aPoints;
}
// ----------------------------------------------------------------------------
// Clipping functions for diagonal frame borders.
/** Limits the clipping region to the inner area of a rectange.
Takes the values from the passed DiagLineResult struct into account. They
may specify to not clip one or more borders of a rectangle.
@param rDev
The output device with the clipping region to be modified. The old
clipping region is pushed onto the device's stack and can be restored
with a call to OutputDevice::Pop(). Please take care about the correct
calling order of Pop() if this function is used with other functions
pushing something onto the stack.
@param rRect
The reference rectangle of the diagonal frame borders.
@param rResult
The result struct containing modifies for each border of the reference
rectangle.
*/
void lclPushDiagClipRect( OutputDevice& rDev, const Rectangle& rRect, const DiagLineResult& rResult )
{
// PixelToLogic() regards internal offset of the output device
Rectangle aClipRect( rRect );
aClipRect.Left() += lclToMapUnit( rResult.mnLClip );
aClipRect.Top() += lclToMapUnit( rResult.mnTClip );
aClipRect.Right() += lclToMapUnit( rResult.mnRClip );
aClipRect.Bottom() += lclToMapUnit( rResult.mnBClip );
// output device would adjust the rectangle -> invalidate it before
if( (aClipRect.GetWidth() < 1) ||(aClipRect.GetHeight() < 1) )
aClipRect.SetEmpty();
rDev.Push( PUSH_CLIPREGION );
rDev.IntersectClipRegion( aClipRect );
}
/** Excludes inner area of a crossing double frame border from clipping region.
This function is used to modify the clipping region so that it excludes the
inner free area of a double diagonal frame border. This makes it possible
to draw a diagonal frame border in one step without taking care of the
crossing double frame border.
@param rDev
The output device with the clipping region to be modified. The old
clipping region is pushed onto the device's stack and can be restored
with a call to OutputDevice::Pop(). Please take care about the correct
calling order of Pop() if this function is used with other functions
pushing something onto the stack.
@param rRect
The reference rectangle of the diagonal frame borders.
@param bTLBR
The orientation of the processed frame border (not the orientation of
the crossing frame border).
@param bCrossStyle
The style of the crossing frame border. Must be a double frame style.
*/
void lclPushCrossingClipRegion( OutputDevice& rDev, const Rectangle& rRect, bool bTLBR, const Style& rCrossStyle )
{
DBG_ASSERT( rCrossStyle.Secn(), "lclGetCrossingClipRegion - use only for double styles" );
LinePoints aLPoints( lclGetDiagLineEnds( rRect, !bTLBR, lclGetPrimEnd( rCrossStyle ) ) );
LinePoints aRPoints( lclGetDiagLineEnds( rRect, !bTLBR, lclGetSecnBeg( rCrossStyle ) ) );
Region aClipReg;
if( bTLBR )
{
aClipReg = lclCreatePolygon(
aLPoints.maBeg, aLPoints.maEnd, rRect.BottomRight(), rRect.BottomLeft(), rRect.TopLeft() );
aClipReg.Union( lclCreatePolygon(
aRPoints.maBeg, aRPoints.maEnd, rRect.BottomRight(), rRect.TopRight(), rRect.TopLeft() ) );
}
else
{
aClipReg = lclCreatePolygon(
aLPoints.maBeg, aLPoints.maEnd, rRect.BottomLeft(), rRect.TopLeft(), rRect.TopRight() );
aClipReg.Union( lclCreatePolygon(
aRPoints.maBeg, aRPoints.maEnd, rRect.BottomLeft(), rRect.BottomRight(), rRect.TopRight() ) );
}
rDev.Push( PUSH_CLIPREGION );
rDev.IntersectClipRegion( aClipReg );
}
// ----------------------------------------------------------------------------
// Drawing functions for diagonal frame borders.
/** Draws a diagonal thin or thick line into the passed output device.
The clipping region of the output device is modified according to the
passed DiagLineResult struct. A one pixel wide line can be drawn dotted.
*/
void lclDrawDiagLine(
OutputDevice& rDev, const Rectangle& rRect, bool bTLBR,
const DiagLineResult& rResult, long nDiagOffs1, long nDiagOffs2, SvxBorderStyle nDashing )
{
lclPushDiagClipRect( rDev, rRect, rResult );
LinePoints aLPoints( lclGetDiagLineEnds( rRect, bTLBR, nDiagOffs1 ) );
LinePoints aL2Points( lclGetDiagLineEnds( rRect, bTLBR, nDiagOffs2 ) );
Point aSMid( ( aLPoints.maBeg + aL2Points.maBeg ) / 2 );
Point aEMid( ( aLPoints.maEnd + aL2Points.maEnd ) / 2 );
sal_uInt32 nWidth = lclToMapUnit( abs( nDiagOffs1 ) ) + lclToMapUnit( abs( nDiagOffs2 ) );
if ( ( nDiagOffs1 <= 0 && nDiagOffs2 <= 0 ) || ( nDiagOffs1 >=0 && nDiagOffs2 >=0 ) )
nWidth = lclToMapUnit( abs( nDiagOffs1 - nDiagOffs2 ) );
svtools::DrawLine( rDev, aSMid, aEMid, nWidth, nDashing );
rDev.Pop(); // clipping region
}
/** Draws a diagonal frame border into the passed output device.
The lines of the frame border are drawn interrupted, if the style of the
crossing frame border is double.
@param rRect
The reference rectangle of the diagonal frame border.
@param bTLBR
The orientation of the diagonal frame border.
@param rBorder
The frame style used to draw the border.
@param rResult
Offsets (sub units) to modify the clipping region of the output device.
@param rCrossStyle
Style of the crossing diagonal frame border.
*/
void lclDrawDiagFrameBorder(
OutputDevice& rDev, const Rectangle& rRect, bool bTLBR,
const Style& rBorder, const DiagBorderResult& rResult, const Style& rCrossStyle,
const Color* pForceColor, bool bDiagDblClip )
{
DBG_ASSERT( rBorder.Prim(), "svx::frame::lclDrawDiagFrameBorder - line not visible" );
bool bClip = bDiagDblClip && rCrossStyle.Secn();
if( bClip )
lclPushCrossingClipRegion( rDev, rRect, bTLBR, rCrossStyle );
lclSetColorToOutDev( rDev, rBorder.GetColorPrim(), pForceColor );
lclDrawDiagLine( rDev, rRect, bTLBR, rResult.maPrim, lclGetBeg( rBorder ), lclGetPrimEnd( rBorder ), rBorder.Type() );
rDev.Pop(); // colors
if( rBorder.Secn() )
{
if ( rBorder.UseGapColor( ) )
{
lclSetColorToOutDev( rDev, rBorder.GetColorGap(), pForceColor );
lclDrawDiagLine( rDev, rRect, bTLBR, rResult.maSecn, lclGetDistBeg( rBorder ), lclGetDistEnd( rBorder ), rBorder.Type() );
rDev.Pop(); // colors
}
lclSetColorToOutDev( rDev, rBorder.GetColorSecn(), pForceColor );
lclDrawDiagLine( rDev, rRect, bTLBR, rResult.maSecn, lclGetSecnBeg( rBorder ), lclGetEnd( rBorder ), rBorder.Type() );
rDev.Pop(); // colors
}
if( bClip )
rDev.Pop(); // clipping region
}
/** Draws both diagonal frame borders into the passed output device.
The lines of each frame border is drawn interrupted, if the style of the
other crossing frame border is double.
@param rRect
The reference rectangle of the diagonal frame borders.
@param rTLBR
The frame style of the top-left to bottom-right frame border.
@param rBLTR
The frame style of the bottom-left to top-right frame border.
@param rResult
Offsets (sub units) to modify the clipping region of the output device.
*/
void lclDrawDiagFrameBorders(
OutputDevice& rDev, const Rectangle& rRect,
const Style& rTLBR, const Style& rBLTR, const DiagBordersResult& rResult,
const Color* pForceColor, bool bDiagDblClip )
{
DBG_ASSERT( (rRect.GetWidth() > 1) && (rRect.GetHeight() > 1), "svx::frame::lclDrawDiagFrameBorders - rectangle too small" );
if( (rRect.GetWidth() > 1) && (rRect.GetHeight() > 1) )
{
bool bDrawTLBR = rTLBR.Prim() != 0;
bool bDrawBLTR = rBLTR.Prim() != 0;
bool bFirstDrawBLTR = rTLBR.Secn() != 0;
if( bDrawBLTR && bFirstDrawBLTR )
lclDrawDiagFrameBorder( rDev, rRect, false, rBLTR, rResult.maBLTR, rTLBR, pForceColor, bDiagDblClip );
if( bDrawTLBR )
lclDrawDiagFrameBorder( rDev, rRect, true, rTLBR, rResult.maTLBR, rBLTR, pForceColor, bDiagDblClip );
if( bDrawBLTR && !bFirstDrawBLTR )
lclDrawDiagFrameBorder( rDev, rRect, false, rBLTR, rResult.maBLTR, rTLBR, pForceColor, bDiagDblClip );
}
}
// ============================================================================
} // namespace
// ============================================================================
// Classes
// ============================================================================
#define SCALEVALUE( value ) lclScaleValue( value, fScale, nMaxWidth )
void Style::Clear()
{
Set( Color(), Color(), Color(), false, 0, 0, 0 );
}
void Style::Set( double nP, double nD, double nS )
{
/* nP nD nS -> mnPrim mnDist mnSecn
--------------------------------------
any any 0 nP 0 0
0 any >0 nS 0 0
>0 0 >0 nP 0 0
>0 >0 >0 nP nD nS
*/
mnPrim = rtl::math::round(nP ? nP : nS, 2);
mnDist = rtl::math::round((nP && nS) ? nD : 0, 2);
mnSecn = rtl::math::round((nP && nD) ? nS : 0, 2);
}
void Style::Set( const Color& rColorPrim, const Color& rColorSecn, const Color& rColorGap, bool bUseGapColor, double nP, double nD, double nS )
{
maColorPrim = rColorPrim;
maColorSecn = rColorSecn;
maColorGap = rColorGap;
mbUseGapColor = bUseGapColor;
Set( nP, nD, nS );
}
void Style::Set( const SvxBorderLine& rBorder, double fScale, sal_uInt16 nMaxWidth )
{
maColorPrim = rBorder.GetColorOut();
maColorSecn = rBorder.GetColorIn();
maColorGap = rBorder.GetColorGap();
mbUseGapColor = rBorder.HasGapColor();
sal_uInt16 nPrim = rBorder.GetOutWidth();
sal_uInt16 nDist = rBorder.GetDistance();
sal_uInt16 nSecn = rBorder.GetInWidth();
mnType = rBorder.GetStyle();
if( !nSecn ) // no or single frame border
{
Set( SCALEVALUE( nPrim ), 0, 0 );
}
else
{
Set( SCALEVALUE( nPrim ), SCALEVALUE( nDist ), SCALEVALUE( nSecn ) );
// Enlarge the style if distance is too small due to rounding losses.
double nPixWidth = SCALEVALUE( nPrim + nDist + nSecn );
if( nPixWidth > GetWidth() )
mnDist = nPixWidth - mnPrim - mnSecn;
// Shrink the style if it is too thick for the control.
while( GetWidth() > nMaxWidth )
{
// First decrease space between lines.
if( mnDist )
--mnDist;
// Still too thick? Decrease the line widths.
if( GetWidth() > nMaxWidth )
{
if( rtl::math::approxEqual(mnPrim, 0.0) && rtl::math::approxEqual(mnPrim, mnSecn) )
{
// Both lines equal - decrease both to keep symmetry.
--mnPrim;
--mnSecn;
}
else
{
// Decrease each line for itself
if( mnPrim )
--mnPrim;
if( (GetWidth() > nMaxWidth) && !rtl::math::approxEqual(mnSecn, 0.0) )
--mnSecn;
}
}
}
}
}
void Style::Set( const SvxBorderLine* pBorder, double fScale, sal_uInt16 nMaxWidth )
{
if( pBorder )
Set( *pBorder, fScale, nMaxWidth );
else
{
Clear();
mnType = SOLID;
}
}
Style& Style::MirrorSelf()
{
if( mnSecn )
std::swap( mnPrim, mnSecn );
if( meRefMode != REFMODE_CENTERED )
meRefMode = (meRefMode == REFMODE_BEGIN) ? REFMODE_END : REFMODE_BEGIN;
return *this;
}
Style Style::Mirror() const
{
return Style( *this ).MirrorSelf();
}
bool operator==( const Style& rL, const Style& rR )
{
return (rL.Prim() == rR.Prim()) && (rL.Dist() == rR.Dist()) && (rL.Secn() == rR.Secn()) &&
(rL.GetColorPrim() == rR.GetColorPrim()) && (rL.GetColorSecn() == rR.GetColorSecn()) &&
(rL.GetColorGap() == rR.GetColorGap()) && (rL.GetRefMode() == rR.GetRefMode()) &&
(rL.UseGapColor() == rR.UseGapColor() ) && (rL.Type() == rR.Type());
}
bool operator<( const Style& rL, const Style& rR )
{
// different total widths -> rL<rR, if rL is thinner
double nLW = rL.GetWidth();
double nRW = rR.GetWidth();
if( nLW != nRW ) return nLW < nRW;
// one line double, the other single -> rL<rR, if rL is single
if( (rL.Secn() == 0) != (rR.Secn() == 0) ) return rL.Secn() == 0;
// both lines double with different distances -> rL<rR, if distance of rL greater
if( (rL.Secn() && rR.Secn()) && (rL.Dist() != rR.Dist()) ) return rL.Dist() > rR.Dist();
// both lines single and 1 unit thick, only one is dotted -> rL<rR, if rL is dotted
if( (nLW == 1) && (rL.Type() != rR.Type()) ) return rL.Type();
// seem to be equal
return false;
}
#undef SCALEVALUE
// ============================================================================
// Various helper functions
// ============================================================================
double GetHorDiagAngle( long nWidth, long nHeight )
{
return atan2( static_cast< double >( Abs( nHeight ) ), static_cast< double >( Abs( nWidth ) ) );
}
// ============================================================================
long GetTLDiagOffset( long nVerOffs, long nDiagOffs, double fAngle )
{
return lclD2L( nVerOffs / tan( fAngle ) + nDiagOffs / sin( fAngle ) );
}
long GetBLDiagOffset( long nVerOffs, long nDiagOffs, double fAngle )
{
return lclD2L( -nVerOffs / tan( fAngle ) + nDiagOffs / sin( fAngle ) );
}
long GetBRDiagOffset( long nVerOffs, long nDiagOffs, double fAngle )
{
return -lclD2L( -nVerOffs / tan( fAngle ) - nDiagOffs / sin( fAngle ) );
}
long GetTRDiagOffset( long nVerOffs, long nDiagOffs, double fAngle )
{
return -lclD2L( nVerOffs / tan( fAngle ) - nDiagOffs / sin( fAngle ) );
}
// ============================================================================
bool CheckFrameBorderConnectable( const Style& rLBorder, const Style& rRBorder,
const Style& rTFromTL, const Style& rTFromT, const Style& rTFromTR,
const Style& rBFromBL, const Style& rBFromB, const Style& rBFromBR )
{
return // returns 1 AND (2a OR 2b)
// 1) only, if both frame borders are equal
(rLBorder == rRBorder)
&&
(
(
// 2a) if the borders are not double, at least one of the vertical must not be double
!rLBorder.Secn() && (!rTFromT.Secn() || !rBFromB.Secn())
)
||
(
// 2b) if the borders are double, all other borders must not be double
rLBorder.Secn() &&
!rTFromTL.Secn() && !rTFromT.Secn() && !rTFromTR.Secn() &&
!rBFromBL.Secn() && !rBFromB.Secn() && !rBFromBR.Secn()
)
);
}
// ============================================================================
// Drawing functions
// ============================================================================
double lcl_GetExtent( const Style& rBorder, const Style& rSide, const Style& rOpposite,
long nAngleSide = 9000, long nAngleOpposite = 9000 )
{
Style aOtherBorder = const_cast< Style& >( rSide );
long nOtherAngle = nAngleSide;
if ( rSide.GetWidth() == 0 && rOpposite.GetWidth() > 0 )
{
nOtherAngle = nAngleOpposite;
aOtherBorder = const_cast< Style& >( rOpposite );
}
else if ( rSide.GetWidth() == 0 && rOpposite.GetWidth() == 0 )
{
if ( ( nAngleOpposite % 18000 ) == 0 )
nOtherAngle = nAngleSide;
else if ( ( nAngleSide % 18000 ) == 0 )
nOtherAngle = nAngleOpposite;
}
// Let's assume the border we are drawing is horizontal and compute all the angles / distances from this
basegfx::B2DVector aBaseVector( 1.0, 0.0 );
basegfx::B2DPoint aBasePoint( 0.0, static_cast<double>( rBorder.GetWidth() / 2 ) );
basegfx::B2DHomMatrix aRotation;
aRotation.rotate( double( nOtherAngle ) * M_PI / 18000.0 );
basegfx::B2DVector aOtherVector = aRotation * aBaseVector;
// Compute a line shifted by half the width of the other border
basegfx::B2DVector aPerpendicular = basegfx::getNormalizedPerpendicular( aOtherVector );
basegfx::B2DPoint aOtherPoint = basegfx::B2DPoint() + aPerpendicular * aOtherBorder.GetWidth() / 2;
// Find the cut between the two lines
double nCut = 0.0;
basegfx::tools::findCut(
aBasePoint, aBaseVector, aOtherPoint, aOtherVector,
CUTFLAG_ALL, &nCut );
return nCut;
}
basegfx::B2DPoint lcl_PointToB2DPoint( const Point aPoint )
{
return basegfx::B2DPoint( aPoint.getX(), aPoint.getY() );
}
drawinglayer::primitive2d::Primitive2DSequence CreateClippedBorderPrimitives (
const Point& rStart, const Point& rEnd, const Style& rBorder,
const Rectangle& rClipRect )
{
drawinglayer::primitive2d::Primitive2DSequence aSequence( 1 );
basegfx::B2DPolygon aPolygon;
aPolygon.append( lcl_PointToB2DPoint( rClipRect.TopLeft( ) ) );
aPolygon.append( lcl_PointToB2DPoint( rClipRect.TopRight( ) ) );
aPolygon.append( lcl_PointToB2DPoint( rClipRect.BottomRight( ) ) );
aPolygon.append( lcl_PointToB2DPoint( rClipRect.BottomLeft( ) ) );
aPolygon.setClosed( true );
aSequence[0] = new drawinglayer::primitive2d::ClippedBorderLinePrimitive2D(
lcl_PointToB2DPoint( rStart ),
lcl_PointToB2DPoint( rEnd ),
rBorder.Prim(),
rBorder.Dist(),
rBorder.Secn(),
aPolygon,
rBorder.GetColorSecn().getBColor(),
rBorder.GetColorPrim().getBColor(),
rBorder.GetColorGap().getBColor(),
rBorder.UseGapColor(), rBorder.Type() );
return aSequence;
}
drawinglayer::primitive2d::Primitive2DSequence CreateBorderPrimitives(
const Point& rLPos, const Point& rRPos, const Style& rBorder,
const DiagStyle& /*rLFromTR*/, const Style& rLFromT, const Style& /*rLFromL*/, const Style& rLFromB, const DiagStyle& /*rLFromBR*/,
const DiagStyle& /*rRFromTL*/, const Style& rRFromT, const Style& /*rRFromR*/, const Style& rRFromB, const DiagStyle& /*rRFromBL*/,
const Color* /*pForceColor*/, const long& nRotateT, const long& nRotateB )
{
drawinglayer::primitive2d::Primitive2DSequence aSequence( 1 );
basegfx::B2DPoint aStart( rLPos.getX(), rLPos.getY() );
basegfx::B2DPoint aEnd( rRPos.getX(), rRPos.getY() );
aSequence[0] = new drawinglayer::primitive2d::BorderLinePrimitive2D(
aStart, aEnd,
rBorder.Prim(),
rBorder.Dist(),
rBorder.Secn(),
lcl_GetExtent( rBorder, rLFromT, rLFromB, nRotateT, - nRotateB ),
lcl_GetExtent( rBorder, rRFromT, rRFromB, 18000 - nRotateT, nRotateB - 18000 ),
lcl_GetExtent( rBorder, rLFromB, rLFromT, nRotateB, - nRotateT ),
lcl_GetExtent( rBorder, rRFromB, rRFromT, 18000 - nRotateB, nRotateT - 18000 ),
rBorder.GetColorSecn().getBColor(),
rBorder.GetColorPrim().getBColor(),
rBorder.GetColorGap().getBColor(),
rBorder.UseGapColor(), rBorder.Type() );
return aSequence;
}
drawinglayer::primitive2d::Primitive2DSequence CreateBorderPrimitives(
const Point& rLPos, const Point& rRPos, const Style& rBorder,
const Style& rLFromT, const Style& rLFromL, const Style& rLFromB,
const Style& rRFromT, const Style& rRFromR, const Style& rRFromB,
const Color* pForceColor, const long& nRotateT, const long& nRotateB )
{
return CreateBorderPrimitives( rLPos, rRPos, rBorder,
DiagStyle(), rLFromT, rLFromL, rLFromB, DiagStyle(),
DiagStyle(), rRFromT, rRFromR, rRFromB, DiagStyle(),
pForceColor, nRotateT, nRotateB );
}
void DrawHorFrameBorder( OutputDevice& rDev,
const Point& rLPos, const Point& rRPos, const Style& rBorder,
const DiagStyle& rLFromTR, const Style& rLFromT, const Style& rLFromL, const Style& rLFromB, const DiagStyle& rLFromBR,
const DiagStyle& rRFromTL, const Style& rRFromT, const Style& rRFromR, const Style& rRFromB, const DiagStyle& rRFromBL,
const Color* pForceColor )
{
if( rBorder.Prim() )
{
BorderResult aResult;
lclLinkHorFrameBorder( aResult, rBorder,
rLFromTR, rLFromT, rLFromL, rLFromB, rLFromBR,
rRFromTL, rRFromT, rRFromR, rRFromB, rRFromBL );
lclDrawHorFrameBorder( rDev, rLPos, rRPos, rBorder, aResult, pForceColor );
}
}
// ----------------------------------------------------------------------------
void DrawVerFrameBorder( OutputDevice& rDev,
const Point& rTPos, const Point& rBPos, const Style& rBorder,
const DiagStyle& rTFromBL, const Style& rTFromL, const Style& rTFromT, const Style& rTFromR, const DiagStyle& rTFromBR,
const DiagStyle& rBFromTL, const Style& rBFromL, const Style& rBFromB, const Style& rBFromR, const DiagStyle& rBFromTR,
const Color* pForceColor )
{
if( rBorder.Prim() )
{
BorderResult aResult;
lclLinkVerFrameBorder( aResult, rBorder,
rTFromBL, rTFromL, rTFromT, rTFromR, rTFromBR,
rBFromTL, rBFromL, rBFromB, rBFromR, rBFromTR );
lclDrawVerFrameBorder( rDev, rTPos, rBPos, rBorder, aResult, pForceColor );
}
}
// ============================================================================
void DrawDiagFrameBorders(
OutputDevice& rDev, const Rectangle& rRect, const Style& rTLBR, const Style& rBLTR,
const Style& rTLFromB, const Style& rTLFromR, const Style& rBRFromT, const Style& rBRFromL,
const Style& rBLFromT, const Style& rBLFromR, const Style& rTRFromB, const Style& rTRFromL,
const Color* pForceColor, bool bDiagDblClip )
{
if( rTLBR.Prim() || rBLTR.Prim() )
{
DiagBordersResult aResult;
lclLinkDiagFrameBorders( aResult, rTLBR, rBLTR,
rTLFromB, rTLFromR, rBRFromT, rBRFromL, rBLFromT, rBLFromR, rTRFromB, rTRFromL );
lclDrawDiagFrameBorders( rDev, rRect, rTLBR, rBLTR, aResult, pForceColor, bDiagDblClip );
}
}
// ============================================================================
} // namespace frame
} // namespace svx
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */