1548 lines
63 KiB
C++
1548 lines
63 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: framelink.cxx,v $
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*
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* $Revision: 1.7 $
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*
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* last change: $Author: obo $ $Date: 2006-09-17 04:20:29 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_svx.hxx"
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#ifndef SVX_FRAMELINK_HXX
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#include "framelink.hxx"
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#endif
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#include <math.h>
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#ifndef _SV_OUTDEV_HXX
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#include <vcl/outdev.hxx>
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#endif
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#ifndef SVX_BORDERLINE_HXX
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#include "borderline.hxx"
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#endif
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// ----------------------------------------------------------------------------
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/** Define to select the drawing mode of thin dotted lines.
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0 = Draw lines using an own implementation (recommended). Draws always
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little dots in an appropriate distance.
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1 = Draw dotted lines using vcl/LineInfo. Results in dashed lines instead
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of dotted lines, which may look ugly for diagonal lines.
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*/
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#define SVX_FRAME_USE_LINEINFO 0
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// ----------------------------------------------------------------------------
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#if SVX_FRAME_USE_LINEINFO
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#ifndef _SV_LINEINFO_HXX
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#include <vcl/lineinfo.hxx>
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#endif
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#endif
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namespace svx {
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namespace frame {
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// ============================================================================
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// ============================================================================
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namespace {
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typedef std::vector< Point > PointVec;
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// ----------------------------------------------------------------------------
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// Link result structs for horizontal and vertical lines and borders.
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/** Result struct used by the horizontal/vertical frame link functions.
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This struct is used to return coordinate offsets for one end of a single
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line in a frame border, i.e. the left end of the primary line of a
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horizontal frame border.
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1) Usage for horizontal lines
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If this struct is returned by the lclLinkHorFrameBorder() function, each
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member refers to the X coordinate of one edge of a single line end in a
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horizontal frame border. They specify an offset to modify this coordinate
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when the line is painted. The values in this struct may change a
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rectangular line shape into a line with slanted left or right border, which
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is used to connect the line with diagonal lines.
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Usage for a left line end: Usage for a right line end:
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mnOffs1 mnOffs1
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<-------> <------->
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+-------------------------------+
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| the original horizontal line |
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+-------------------------------+
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<-------> <------->
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mnOffs2 mnOffs2
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2) Usage for vertical lines
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If this struct is returned by the lclLinkVerFrameBorder() function, each
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member refers to the Y coordinate of one edge of a single line end in a
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vertical frame border. They specify an offset to modify this coordinate
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when the line is painted. The values in this struct may change a
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rectangular line shape into a line with slanted top or bottom border, which
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is used to connect the line with diagonal lines.
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Usage for a top line end: mnOffs1 ^ ^ mnOffs2
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| +-------+ |
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v | | v
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the original vertical line ---> | |
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| |
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^ | | ^
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| +-------+ |
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Usage for a bottom line end: mnOffs1 v v mnOffs2
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*/
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struct LineEndResult
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{
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long mnOffs1; /// Offset for top or left edge, dependent of context.
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long mnOffs2; /// Offset for bottom or right edge, dependent of context
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inline explicit LineEndResult() : mnOffs1( 0 ), mnOffs2( 0 ) {}
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inline void Swap() { std::swap( mnOffs1, mnOffs2 ); }
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inline void Negate() { mnOffs1 = -mnOffs1; mnOffs2 = -mnOffs2; }
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};
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/** Result struct used by the horizontal/vertical frame link functions.
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This struct contains the linking results for one end of a frame border,
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including both the primary and secondary line ends.
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*/
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struct BorderEndResult
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{
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LineEndResult maPrim; /// Result for primary line.
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LineEndResult maSecn; /// Result for secondary line.
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inline void Negate() { maPrim.Negate(); maSecn.Negate(); }
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};
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/** Result struct used by the horizontal/vertical frame link functions.
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This struct contains the linking results for both frame border ends, and
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therefore for the complete frame border.
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*/
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struct BorderResult
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{
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BorderEndResult maBeg; /// Result for begin of border line (left or top end).
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BorderEndResult maEnd; /// Result for end of border line (right or bottom end).
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};
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// ----------------------------------------------------------------------------
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// Link result structs for diagonal lines and borders.
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/** Result struct used by the diagonal frame link functions.
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This struct contains the linking results for one line of a diagonal frame
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border.
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*/
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struct DiagLineResult
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{
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long mnLClip; /// Offset for left border of clipping rectangle.
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long mnRClip; /// Offset for right border of clipping rectangle.
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long mnTClip; /// Offset for top border of clipping rectangle.
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long mnBClip; /// Offset for bottom border of clipping rectangle.
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inline explicit DiagLineResult() : mnLClip( 0 ), mnRClip( 0 ), mnTClip( 0 ), mnBClip( 0 ) {}
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};
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/** Result struct used by the diagonal frame link functions.
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This struct contains the linking results for one diagonal frame border.
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*/
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struct DiagBorderResult
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{
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DiagLineResult maPrim; /// Result for primary line.
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DiagLineResult maSecn; /// Result for secondary line.
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};
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/** Result struct used by the diagonal frame link functions.
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This struct contains the linking results for both diagonal frame borders.
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*/
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struct DiagBordersResult
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{
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DiagBorderResult maTLBR; /// Result for top-left to bottom-right frame border.
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DiagBorderResult maBLTR; /// Result for bottom-left to top-right frame border.
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};
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// ----------------------------------------------------------------------------
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/** A helper struct containing two points of a line.
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*/
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struct LinePoints
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{
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Point maBeg; /// Start position of the line.
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Point maEnd; /// End position of the line.
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explicit LinePoints( const Point& rBeg, const Point& rEnd ) :
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maBeg( rBeg ), maEnd( rEnd ) {}
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explicit LinePoints( const Rectangle& rRect, bool bTLBR ) :
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maBeg( bTLBR ? rRect.TopLeft() : rRect.TopRight() ),
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maEnd( bTLBR ? rRect.BottomRight() : rRect.BottomLeft() ) {}
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};
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// ============================================================================
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/** Rounds and casts a double value to a long value. */
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inline long lclD2L( double fValue )
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{
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return static_cast< long >( (fValue < 0.0) ? (fValue - 0.5) : (fValue + 0.5) );
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}
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/** Converts a width in twips to a width in another map unit (specified by fScale). */
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sal_uInt16 lclScaleValue( long nValue, double fScale, sal_uInt16 nMaxWidth )
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{
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// convert any width except 0 to at least 1 unit
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// #i61324# 1 twip must scale to 1/100mm
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return nValue ? static_cast< sal_uInt16 >( std::min< long >( std::max(
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static_cast< long >( nValue * fScale ), 1L ), nMaxWidth ) ) : 0;
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}
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// ----------------------------------------------------------------------------
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// Line width offset calculation.
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/** Returns the start offset of the single/primary line across the frame border.
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All following lclGet*Beg() and lclGet*End() functions return sub units to
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increase the computational accuracy, where 256 sub units are equal to
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1 map unit of the used OutputDevice.
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The following pictures show the upper end of a vertical frame border and
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illustrates the return values of all following lclGet*Beg() and lclGet*End()
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functions. The first picture shows a single frame border, the second picture
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shows a double frame border.
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The functions regard the reference point handling mode of the passed border
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style.
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REFMODE_CENTERED:
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All returned offsets are relative to the middle position of the frame
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border (offsets left of the middle are returned negative, offsets right
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of the middle are returned positive).
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REFMODE_BEGIN:
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All returned offsets are relative to the begin of the frame border
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(lclGetBeg() always returns 0).
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REFMODE_END:
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All returned offsets are relative to the end of the frame border
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(lclGetEnd() always returns 0).
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|<- lclGetEnd()
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|<- lclGetBeforeBeg() |<- lclGetPrimEnd()
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| |
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||<- lclGetBeg() ||<- lclGetBehindEnd()
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|| ||
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|#################################|
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direction of | #################################
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the frame | #################################
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border is | #################################
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vertical | #################################
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v #################################
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|<- middle of the frame border
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lclGetDistEnd() ->||<- lclGetSecnBeg()
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||
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lclGetBeg() ->| lclGetDistBeg() ->| || |<- lclGetEnd()
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| | || |
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lclGetBeforeBeg()->|| lclGetPrimEnd() ->|| || ||<- lclGetBehindEnd()
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|| || || ||
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|######################| |#############|
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direction of | ###################### #############
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the frame | ###################### #############
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border is | ###################### #############
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vertical | ###################### | #############
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v ###################### | #############
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primary line | secondary line
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|<- middle of the frame border
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@return
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The start offset of the single/primary line relative to the reference
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position of the frame border (sub units; 0 for invisible or one pixel
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wide single frame styles).
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*/
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long lclGetBeg( const Style& rBorder )
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{
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long nPos = 0;
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switch( rBorder.GetRefMode() )
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{
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case REFMODE_CENTERED: if( rBorder.Prim() ) nPos = -128 * (rBorder.GetWidth() - 1); break;
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case REFMODE_END: if( rBorder.Prim() ) nPos = -256 * (rBorder.GetWidth() - 1); break;
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case REFMODE_BEGIN: break;
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}
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return nPos;
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}
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/** Returns the end offset of the single/secondary line across the frame border.
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@descr See description of lclGetBeg() for an illustration.
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@return The end offset of the single/secondary line relative to the
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reference position of the frame border (sub units; 0 for invisible or one
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pixel wide single frame styles). */
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long lclGetEnd( const Style& rBorder )
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{
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long nPos = 0;
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switch( rBorder.GetRefMode() )
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{
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case REFMODE_CENTERED: if( rBorder.Prim() ) nPos = 128 * (rBorder.GetWidth() - 1); break;
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case REFMODE_BEGIN: if( rBorder.Prim() ) nPos = 256 * (rBorder.GetWidth() - 1); break;
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case REFMODE_END: break;
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}
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return nPos;
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}
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/** Returns the end offset of the primary line across the frame border.
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@descr See description of lclGetBeg() for an illustration.
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@return The end offset of the primary line relative to the reference
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position of the frame border (sub units; the end of the primary line in a
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double frame style, otherwise the same as lclGetEnd()). */
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inline long lclGetPrimEnd( const Style& rBorder )
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{ return rBorder.Prim() ? (lclGetBeg( rBorder ) + 256 * (rBorder.Prim() - 1)) : 0; }
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/** Returns the start offset of the secondary line across the frame border.
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@descr See description of lclGetBeg() for an illustration.
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@return The start offset of the secondary line relative to the reference
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position of the frame border (sub units; 0 for single/invisible border
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styles). */
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inline long lclGetSecnBeg( const Style& rBorder )
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{ return rBorder.Secn() ? (lclGetEnd( rBorder ) - 256 * (rBorder.Secn() - 1)) : 0; }
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/** Returns the start offset of the distance space across the frame border.
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@descr See description of lclGetBeg() for an illustration.
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@return The start offset of the distance space relative to the reference
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position of the frame border (sub units; 0 for single/invisible border
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styles). */
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inline long lclGetDistBeg( const Style& rBorder )
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{ return rBorder.Secn() ? (lclGetBeg( rBorder ) + 256 * rBorder.Prim()) : 0; }
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/** Returns the end offset of the distance space across the frame border.
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@descr See description of lclGetBeg() for an illustration.
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@return The end offset of the distance space relative to the reference
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position of the frame border (sub units; 0 for single/invisible border
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styles). */
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inline long lclGetDistEnd( const Style& rBorder )
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{ return rBorder.Secn() ? (lclGetEnd( rBorder ) - 256 * rBorder.Secn()) : 0; }
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/** Returns the offset before start of single/primary line across the frame border.
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@descr See description of lclGetBeg() for an illustration.
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@return The offset directly before start of single/primary line relative
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to the reference position of the frame border (sub units; a value one less
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than lclGetBeg() for visible frame styles, or 0 for invisible frame style). */
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inline long lclGetBeforeBeg( const Style& rBorder )
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{ return rBorder.Prim() ? (lclGetBeg( rBorder ) - 256) : 0; }
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/** Returns the offset behind end of single/secondary line across the frame border.
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@descr See description of lclGetBeg() for an illustration.
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@return The offset directly behind end of single/secondary line relative
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to the reference position of the frame border (sub units; a value one
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greater than lclGetEnd() for visible frame styles, or 0 for invisible frame
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style). */
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inline long lclGetBehindEnd( const Style& rBorder )
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{ return rBorder.Prim() ? (lclGetEnd( rBorder ) + 256) : 0; }
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// ============================================================================
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// Linking functions
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// ============================================================================
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// ----------------------------------------------------------------------------
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// Linking of single horizontal line ends.
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/** Calculates X offsets for the left end of a single horizontal frame border.
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See DrawHorFrameBorder() function for a description of all parameters.
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@param rResult
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(out-param) The contained values (sub units) specify offsets for the
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X coordinates of the left line end.
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*/
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void lclLinkLeftEnd_Single(
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LineEndResult& rResult, const Style& rBorder,
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const DiagStyle& rLFromTR, const Style& rLFromT, const Style& rLFromL, const Style& rLFromB, const DiagStyle& rLFromBR )
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{
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// both vertical and diagonal frame borders are double
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if( rLFromT.Secn() && rLFromB.Secn() && rLFromTR.Secn() && rLFromBR.Secn() )
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{
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// take left position of upper and lower secondary start
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rResult.mnOffs1 = GetBLDiagOffset( lclGetBeg( rBorder ), lclGetSecnBeg( rLFromTR ), rLFromTR.GetAngle() );
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rResult.mnOffs2 = GetTLDiagOffset( lclGetEnd( rBorder ), lclGetSecnBeg( rLFromBR ), rLFromBR.GetAngle() );
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}
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else
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{
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// both vertical frame borders are double
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if( rLFromT.Secn() && rLFromB.Secn() )
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rResult.mnOffs1 = (!rLFromTR.Secn() && !rLFromBR.Secn() && (rLFromT.GetWidth() == rLFromB.GetWidth())) ?
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// don't overdraw vertical borders with equal width
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lclGetBehindEnd( rLFromT ) :
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// take leftmost start of both secondary lines (#46488#)
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rResult.mnOffs1 = std::min( lclGetSecnBeg( rLFromT ), lclGetSecnBeg( rLFromB ) );
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// single border with equal width coming from left
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else if( !rLFromL.Secn() && (rLFromL.Prim() == rBorder.Prim()) )
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// draw to connection point
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rResult.mnOffs1 = 0;
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// single border coming from left
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else if( !rLFromL.Secn() && rLFromL.Prim() )
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{
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if( rLFromL.Prim() == rBorder.Prim() )
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// draw to reference position, if from left has equal width
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rResult.mnOffs1 = 0;
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else
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rResult.mnOffs1 = (rLFromL < rBorder) ?
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// take leftmost start of both frame borders, if from left is thinner
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std::min( lclGetBeg( rLFromT ), lclGetBeg( rLFromB ) ) :
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// do not overdraw vertical, if from left is thicker
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std::max( lclGetBehindEnd( rLFromT ), lclGetBehindEnd( rLFromB ) );
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}
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// no border coming from left
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else if( !rLFromL.Prim() )
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// don't overdraw vertical borders with equal width
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rResult.mnOffs1 = (rLFromT.GetWidth() == rLFromB.GetWidth()) ?
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lclGetBehindEnd( rLFromT ) :
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std::min( lclGetBeg( rLFromT ), lclGetBeg( rLFromB ) );
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// double frame border coming from left and from top
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else if( rLFromT.Secn() )
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// do not overdraw the vertical double frame border
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rResult.mnOffs1 = lclGetBehindEnd( rLFromT );
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// double frame border coming from left and from bottom
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else if( rLFromB.Secn() )
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// do not overdraw the vertical double frame border
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rResult.mnOffs1 = lclGetBehindEnd( rLFromB );
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// double frame border coming from left, both vertical frame borders are single or off
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else
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// draw from leftmost start of both frame borders, if from left is not thicker
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rResult.mnOffs1 = (rLFromL <= rBorder) ?
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std::min( lclGetBeg( rLFromT ), lclGetBeg( rLFromB ) ) :
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std::max( lclGetBehindEnd( rLFromT ), lclGetBehindEnd( rLFromB ) );
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// bottom-left point is equal to top-left point (results in rectangle)
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rResult.mnOffs2 = rResult.mnOffs1;
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}
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}
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/** Calculates X offsets for the left end of a primary horizontal line.
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|
|
|
See DrawHorFrameBorder() function for a description of all parameters.
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|
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@param rResult
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(out-param) The contained values (sub units) specify offsets for the
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X coordinates of the left end of the primary line.
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|
*/
|
|
void lclLinkLeftEnd_Prim(
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LineEndResult& rResult, const Style& rBorder,
|
|
const DiagStyle& rLFromTR, const Style& rLFromT, const Style& rLFromL, const Style& rLFromB, const DiagStyle& /*rLFromBR*/ )
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|
{
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|
// double diagonal frame border coming from top right
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|
if( rLFromTR.Secn() )
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|
{
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|
// 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();
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// 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 );
|
|
}
|
|
else if( rBorder.Prim() )
|
|
{
|
|
// current frame border is single
|
|
lclLinkLeftEnd_Single( rResult.maPrim, rBorder, rLFromTR, rLFromT, rLFromL, rLFromB, rLFromBR );
|
|
}
|
|
else
|
|
DBG_ERRORFILE( "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 );
|
|
}
|
|
|
|
// ============================================================================
|
|
|
|
#if 0
|
|
// Not used anymore, but not deleted for possible future usage.
|
|
|
|
/** Returns the relative Y offset of the intercept point of 2 diagonal borders.
|
|
|
|
@param nTLBROffs
|
|
Width offset (sub units) across the top-left to bottom-right frame border.
|
|
@param fTLBRAngle
|
|
Inner angle between horizontal and top-left to bottom-right frame border.
|
|
@param nBLTROffs
|
|
Width offset (sub units) across the bottom-left to top-right frame border.
|
|
@param fBLTRAngle
|
|
Inner angle between horizontal and bottom-left to top-right frame border.
|
|
@return
|
|
Offset (sub units) relative to the Y position of the centered intercept
|
|
point of both diagonal frame borders.
|
|
*/
|
|
long lclGetDiagDiagOffset( long nTLBROffs, double fTLBRAngle, long nBLTROffs, double fBLTRAngle )
|
|
{
|
|
double fASin = sin( fTLBRAngle );
|
|
double fACos = cos( fTLBRAngle );
|
|
double fAX = -nTLBROffs * fASin;
|
|
double fAY = nTLBROffs * fACos;
|
|
double fRAX = fACos;
|
|
double fRAY = fASin;
|
|
|
|
double fBSin = sin( fBLTRAngle );
|
|
double fBCos = cos( fBLTRAngle );
|
|
double fBX = nBLTROffs * fBSin;
|
|
double fBY = nBLTROffs * fBCos;
|
|
double fRBX = fBCos;
|
|
double fRBY = -fBSin;
|
|
|
|
double fKA = (fRBX * (fBY - fAY) - fRBY * (fBX - fAX)) / (fRBX * fRAY - fRAX * fRBY);
|
|
return lclD2L( fAY + fKA * fRAY );
|
|
}
|
|
#endif
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// 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< USHORT >( rPoints.size() ), &rPoints[ 0 ] );
|
|
}
|
|
|
|
/** Returns a polygon constructed from the four passed points. */
|
|
Polygon lclCreatePolygon( const Point& rP1, const Point& rP2, const Point& rP3, const Point& rP4 )
|
|
{
|
|
PointVec aPoints;
|
|
aPoints.reserve( 4 );
|
|
aPoints.push_back( rP1 );
|
|
aPoints.push_back( rP2 );
|
|
aPoints.push_back( rP3 );
|
|
aPoints.push_back( rP4 );
|
|
return lclCreatePolygon( aPoints );
|
|
}
|
|
|
|
/** 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 );
|
|
}
|
|
|
|
/** Returns a polygon constructed from the two passed line positions. */
|
|
inline Polygon lclCreatePolygon( const LinePoints& rPoints1, const LinePoints& rPoints2 )
|
|
{
|
|
return lclCreatePolygon( rPoints1.maBeg, rPoints1.maEnd, rPoints2.maEnd, rPoints2.maBeg );
|
|
}
|
|
|
|
/** 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 Style& rStyle, const Color* pForceColor )
|
|
{
|
|
rDev.Push( PUSH_LINECOLOR | PUSH_FILLCOLOR );
|
|
rDev.SetLineColor( pForceColor ? *pForceColor : rStyle.GetColor() );
|
|
rDev.SetFillColor( pForceColor ? *pForceColor : rStyle.GetColor() );
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Generic drawing functions.
|
|
|
|
/** Draws a thin (1 pixel wide) line, optionally dotted, into the passed output device. */
|
|
void lclDrawThinLine( OutputDevice& rDev, const Point& rBeg, const Point& rEnd, bool bDotted )
|
|
{
|
|
#if SVX_FRAME_USE_LINEINFO
|
|
if( bDotted && (rBeg != rEnd) )
|
|
{
|
|
// using LineInfo for dotted lines looks ugly and does not work well for diagonal lines
|
|
LineInfo aLineInfo( LINE_DASH, 1 );
|
|
aLineInfo.SetDotCount( 1 );
|
|
aLineInfo.SetDotLen( 1 );
|
|
aLineInfo.SetDistance( 3 );
|
|
rDev.DrawLine( rBeg, rEnd, aLineInfo );
|
|
}
|
|
#else
|
|
Point aBeg( rDev.LogicToPixel( rBeg ) );
|
|
Point aEnd( rDev.LogicToPixel( rEnd ) );
|
|
if( bDotted && (aBeg != aEnd) )
|
|
{
|
|
bool bHor = Abs( aEnd.X() - aBeg.X() ) > Abs( aEnd.Y() - aBeg.Y() );
|
|
const Point& rBegPos( bHor ? ((aBeg.X() < aEnd.X()) ? aBeg : aEnd) : ((aBeg.Y() < aEnd.Y()) ? aBeg : aEnd ) );
|
|
const Point& rEndPos( (rBegPos == aBeg) ? aEnd : aBeg );
|
|
|
|
long nAlongBeg = bHor ? rBegPos.X() : rBegPos.Y();
|
|
long nAcrssBeg = bHor ? rBegPos.Y() : rBegPos.X();
|
|
long nAlongSize = (bHor ? rEndPos.X() : rEndPos.Y()) - nAlongBeg;
|
|
long nAcrssSize = (bHor ? rEndPos.Y() : rEndPos.X()) - nAcrssBeg;
|
|
double fGradient = static_cast< double >( nAcrssSize ) / nAlongSize;
|
|
|
|
PointVec aPoints;
|
|
aPoints.reserve( (nAlongSize + 1) / 2 );
|
|
for( long nAlongIdx = 0; nAlongIdx <= nAlongSize; nAlongIdx += 2 )
|
|
{
|
|
long nAl = nAlongBeg + nAlongIdx;
|
|
long nAc = nAcrssBeg + lclD2L( fGradient * nAlongIdx );
|
|
aPoints.push_back( Point( bHor ? nAl : nAc, bHor ? nAc : nAl ) );
|
|
}
|
|
|
|
rDev.Push( PUSH_MAPMODE );
|
|
rDev.SetMapMode( MAP_PIXEL );
|
|
rDev.DrawPixel( lclCreatePolygon( aPoints ) );
|
|
rDev.Pop(); // map mode
|
|
}
|
|
#endif
|
|
else
|
|
rDev.DrawLine( rBeg, rEnd );
|
|
}
|
|
|
|
/** Draws a thin (1 pixel wide) line, optionally dotted, into the passed output device. */
|
|
inline void lclDrawThinLine( OutputDevice& rDev, const LinePoints& rPoints, bool bDotted )
|
|
{
|
|
lclDrawThinLine( rDev, rPoints.maBeg, rPoints.maEnd, bDotted );
|
|
}
|
|
|
|
/** Draws a polygon with four points into the passed output device. */
|
|
inline void lclDrawPolygon( OutputDevice& rDev, const Point& rP1, const Point& rP2, const Point& rP3, const Point& rP4 )
|
|
{
|
|
rDev.DrawPolygon( lclCreatePolygon( rP1, rP2, rP3, rP4 ) );
|
|
}
|
|
|
|
/** Draws a polygon specified by two borders into the passed output device. */
|
|
inline void lclDrawPolygon( OutputDevice& rDev, const LinePoints& rPoints1, const LinePoints& rPoints2 )
|
|
{
|
|
rDev.DrawPolygon( lclCreatePolygon( rPoints1, rPoints2 ) );
|
|
}
|
|
|
|
// ============================================================================
|
|
// 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, bool bDotted )
|
|
{
|
|
LinePoints aTPoints( rLPos + lclToMapUnit( rLRes.mnOffs1, nTOffs ), rRPos + lclToMapUnit( rRRes.mnOffs1, nTOffs ) );
|
|
if( nTOffs == nBOffs )
|
|
lclDrawThinLine( rDev, aTPoints, bDotted );
|
|
else
|
|
{
|
|
LinePoints aBPoints( rLPos + lclToMapUnit( rLRes.mnOffs2, nBOffs ), rRPos + lclToMapUnit( rRRes.mnOffs2, nBOffs ) );
|
|
lclDrawPolygon( rDev, aTPoints, aBPoints );
|
|
}
|
|
}
|
|
|
|
/** 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() )
|
|
{
|
|
lclSetColorToOutDev( rDev, rBorder, pForceColor );
|
|
lclDrawHorLine( rDev, rLPos, rResult.maBeg.maPrim, rRPos, rResult.maEnd.maPrim,
|
|
lclGetBeg( rBorder ), lclGetPrimEnd( rBorder ), rBorder.Dotted() );
|
|
if( rBorder.Secn() )
|
|
lclDrawHorLine( rDev, rLPos, rResult.maBeg.maSecn, rRPos, rResult.maEnd.maSecn,
|
|
lclGetSecnBeg( rBorder ), lclGetEnd( rBorder ), rBorder.Dotted() );
|
|
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, bool bDotted )
|
|
{
|
|
LinePoints aLPoints( rTPos + lclToMapUnit( nLOffs, rTRes.mnOffs1 ), rBPos + lclToMapUnit( nLOffs, rBRes.mnOffs1 ) );
|
|
if( nLOffs == nROffs )
|
|
lclDrawThinLine( rDev, aLPoints, bDotted );
|
|
else
|
|
{
|
|
LinePoints aRPoints( rTPos + lclToMapUnit( nROffs, rTRes.mnOffs2 ), rBPos + lclToMapUnit( nROffs, rBRes.mnOffs2 ) );
|
|
lclDrawPolygon( rDev, aLPoints, aRPoints );
|
|
}
|
|
}
|
|
|
|
/** 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() )
|
|
{
|
|
lclSetColorToOutDev( rDev, rBorder, pForceColor );
|
|
lclDrawVerLine( rDev, rTPos, rResult.maBeg.maPrim, rBPos, rResult.maEnd.maPrim,
|
|
lclGetBeg( rBorder ), lclGetPrimEnd( rBorder ), rBorder.Dotted() );
|
|
if( rBorder.Secn() )
|
|
lclDrawVerLine( rDev, rTPos, rResult.maBeg.maSecn, rBPos, rResult.maEnd.maSecn,
|
|
lclGetSecnBeg( rBorder ), lclGetEnd( rBorder ), rBorder.Dotted() );
|
|
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, bool bDotted )
|
|
{
|
|
lclPushDiagClipRect( rDev, rRect, rResult );
|
|
LinePoints aLPoints( lclGetDiagLineEnds( rRect, bTLBR, nDiagOffs1 ) );
|
|
if( nDiagOffs1 == nDiagOffs2 )
|
|
lclDrawThinLine( rDev, aLPoints, bDotted );
|
|
else
|
|
lclDrawPolygon( rDev, aLPoints, lclGetDiagLineEnds( rRect, bTLBR, nDiagOffs2 ) );
|
|
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, pForceColor );
|
|
lclDrawDiagLine( rDev, rRect, bTLBR, rResult.maPrim, lclGetBeg( rBorder ), lclGetPrimEnd( rBorder ), rBorder.Dotted() );
|
|
if( rBorder.Secn() )
|
|
lclDrawDiagLine( rDev, rRect, bTLBR, rResult.maSecn, lclGetSecnBeg( rBorder ), lclGetEnd( rBorder ), rBorder.Dotted() );
|
|
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(), 0, 0, 0 );
|
|
}
|
|
|
|
void Style::Set( sal_uInt16 nP, sal_uInt16 nD, sal_uInt16 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 = nP ? nP : nS;
|
|
mnDist = (nP && nS) ? nD : 0;
|
|
mnSecn = (nP && nD) ? nS : 0;
|
|
}
|
|
|
|
void Style::Set( const Color& rColor, sal_uInt16 nP, sal_uInt16 nD, sal_uInt16 nS )
|
|
{
|
|
maColor = rColor;
|
|
Set( nP, nD, nS );
|
|
}
|
|
|
|
void Style::Set( const SvxBorderLine& rBorder, double fScale, sal_uInt16 nMaxWidth, bool bUseDots )
|
|
{
|
|
maColor = rBorder.GetColor();
|
|
|
|
USHORT nPrim = rBorder.GetOutWidth();
|
|
USHORT nDist = rBorder.GetDistance();
|
|
USHORT nSecn = rBorder.GetInWidth();
|
|
|
|
if( !nSecn ) // no or single frame border
|
|
{
|
|
Set( SCALEVALUE( nPrim ), 0, 0 );
|
|
mbDotted = bUseDots && (0 < nPrim) && (nPrim < 10);
|
|
}
|
|
else
|
|
{
|
|
Set( SCALEVALUE( nPrim ), SCALEVALUE( nDist ), SCALEVALUE( nSecn ) );
|
|
mbDotted = false;
|
|
// Enlarge the style if distance is too small due to rounding losses.
|
|
sal_uInt16 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( mnPrim && (mnPrim == mnSecn) )
|
|
{
|
|
// Both lines equal - decrease both to keep symmetry.
|
|
--mnPrim;
|
|
--mnSecn;
|
|
}
|
|
else
|
|
{
|
|
// Decrease each line for itself
|
|
if( mnPrim )
|
|
--mnPrim;
|
|
if( (GetWidth() > nMaxWidth) && mnSecn )
|
|
--mnSecn;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void Style::Set( const SvxBorderLine* pBorder, double fScale, sal_uInt16 nMaxWidth, bool bUseDots )
|
|
{
|
|
if( pBorder )
|
|
Set( *pBorder, fScale, nMaxWidth, bUseDots );
|
|
else
|
|
{
|
|
Clear();
|
|
mbDotted = false;
|
|
}
|
|
}
|
|
|
|
Style& Style::ScaleSelf( double fScale, sal_uInt16 nMaxWidth )
|
|
{
|
|
Set( SCALEVALUE( mnPrim ), SCALEVALUE( mnDist ), SCALEVALUE( mnSecn ) );
|
|
return *this;
|
|
}
|
|
|
|
Style Style::Scale( double fScale, sal_uInt16 nMaxWidth ) const
|
|
{
|
|
return Style( *this ).ScaleSelf( fScale, nMaxWidth );
|
|
}
|
|
|
|
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.GetColor() == rR.GetColor()) && (rL.GetRefMode() == rR.GetRefMode()) && (rL.Dotted() == rR.Dotted());
|
|
}
|
|
|
|
bool operator<( const Style& rL, const Style& rR )
|
|
{
|
|
// different total widths -> rL<rR, if rL is thinner
|
|
sal_uInt16 nLW = rL.GetWidth();
|
|
sal_uInt16 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.Dotted() != rR.Dotted()) ) return rL.Dotted();
|
|
|
|
// 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
|
|
// ============================================================================
|
|
|
|
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 DrawHorFrameBorder( OutputDevice& rDev,
|
|
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 )
|
|
{
|
|
/* Recycle complex version of the DrawHorFrameBorder() function with empty diagonals. */
|
|
const DiagStyle aNoStyle;
|
|
DrawHorFrameBorder(
|
|
rDev, rLPos, rRPos, rBorder,
|
|
aNoStyle, rLFromT, rLFromL, rLFromB, aNoStyle,
|
|
aNoStyle, rRFromT, rRFromR, rRFromB, aNoStyle,
|
|
pForceColor );
|
|
}
|
|
|
|
void DrawHorFrameBorder( OutputDevice& rDev,
|
|
const Point& rLPos, const Point& rRPos, const Style& rBorder, const Color* pForceColor )
|
|
{
|
|
if( rBorder.Prim() )
|
|
lclDrawHorFrameBorder( rDev, rLPos, rRPos, rBorder, BorderResult(), 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 DrawVerFrameBorder( OutputDevice& rDev,
|
|
const Point& rTPos, const Point& rBPos, const Style& rBorder,
|
|
const Style& rTFromL, const Style& rTFromT, const Style& rTFromR,
|
|
const Style& rBFromL, const Style& rBFromB, const Style& rBFromR,
|
|
const Color* pForceColor )
|
|
{
|
|
/* Recycle complex version of the DrawVerFrameBorder() function with empty diagonals. */
|
|
const DiagStyle aNoStyle;
|
|
DrawVerFrameBorder(
|
|
rDev, rTPos, rBPos, rBorder,
|
|
aNoStyle, rTFromL, rTFromT, rTFromR, aNoStyle,
|
|
aNoStyle, rBFromL, rBFromB, rBFromR, aNoStyle,
|
|
pForceColor );
|
|
}
|
|
|
|
void DrawVerFrameBorder( OutputDevice& rDev,
|
|
const Point& rTPos, const Point& rBPos, const Style& rBorder, const Color* pForceColor )
|
|
{
|
|
if( rBorder.Prim() )
|
|
lclDrawVerFrameBorder( rDev, rTPos, rBPos, rBorder, BorderResult(), pForceColor );
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void DrawVerFrameBorderSlanted( OutputDevice& rDev,
|
|
const Point& rTPos, const Point& rBPos, const Style& rBorder, const Color* pForceColor )
|
|
{
|
|
DBG_ASSERT( rTPos.Y() < rBPos.Y(), "svx::frame::DrawVerFrameBorderSlanted - wrong order of line ends" );
|
|
if( rBorder.Prim() && (rTPos.Y() < rBPos.Y()) )
|
|
{
|
|
if( rTPos.X() == rBPos.X() )
|
|
{
|
|
DrawVerFrameBorder( rDev, rTPos, rBPos, rBorder, pForceColor );
|
|
}
|
|
else
|
|
{
|
|
const LineEndResult aRes;
|
|
|
|
Style aScaled( rBorder );
|
|
aScaled.ScaleSelf( 1.0 / cos( GetVerDiagAngle( rTPos, rBPos ) ) );
|
|
|
|
lclSetColorToOutDev( rDev, aScaled, pForceColor );
|
|
lclDrawVerLine( rDev, rTPos, aRes, rBPos, aRes,
|
|
lclGetBeg( aScaled ), lclGetPrimEnd( aScaled ), aScaled.Dotted() );
|
|
if( aScaled.Secn() )
|
|
lclDrawVerLine( rDev, rTPos, aRes, rBPos, aRes,
|
|
lclGetSecnBeg( aScaled ), lclGetEnd( aScaled ), aScaled.Dotted() );
|
|
rDev.Pop(); // colors
|
|
}
|
|
}
|
|
}
|
|
|
|
// ============================================================================
|
|
|
|
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
|
|
|