516 lines
22 KiB
C++
516 lines
22 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: block.h
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// Purpose: Rectangular selection storage classes for ints and doubles
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// Author: John Labenski
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// Created: 07/01/02
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// Copyright: (c) John Labenski, 2004
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// License: wxWidgets
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/////////////////////////////////////////////////////////////////////////////
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#ifndef __wxBLOCK_H__
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#define __wxBLOCK_H__
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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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#pragma interface "block.h"
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#endif
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#include "wx/geometry.h"
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#include "wx/things/thingdef.h"
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//#define USE_wxRANGE
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#ifdef USE_wxRANGE
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#include "wx/things/range.h"
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#endif
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// Note: Why are these not just wxRect2DXXX with m_x and m_width?
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// because the double blocks need to match up at the edges and x+width
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// does not always exactly equal the edge of an adjoining block
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class WXDLLIMPEXP_THINGS wxBlockInt;
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class WXDLLIMPEXP_THINGS wxBlockDouble;
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class WXDLLIMPEXP_THINGS wxBlockIntSelection;
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class WXDLLIMPEXP_THINGS wxBlockDoubleSelection;
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#include "wx/dynarray.h"
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WX_DECLARE_OBJARRAY_WITH_DECL(wxBlockInt, wxArrayBlockInt, class WXDLLIMPEXP_THINGS);
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WX_DECLARE_OBJARRAY_WITH_DECL(wxBlockDouble, wxArrayBlockDouble, class WXDLLIMPEXP_THINGS);
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WX_DECLARE_OBJARRAY_WITH_DECL(wxBlockIntSelection, wxArrayBlockIntSelection, class WXDLLIMPEXP_THINGS);
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WX_DECLARE_OBJARRAY_WITH_DECL(wxBlockDoubleSelection, wxArrayBlockDoubleSelection, class WXDLLIMPEXP_THINGS);
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//=============================================================================
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// wxBlockXXX constants
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//=============================================================================
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// wxEmptyBlockXXX = (0,0,-1,-1)
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WXDLLIMPEXP_DATA_THINGS(extern const wxBlockInt) wxEmptyBlockInt;
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WXDLLIMPEXP_DATA_THINGS(extern const wxBlockDouble) wxEmptyBlockDouble;
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//=============================================================================
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// wxBlockXXX sorting functions
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//=============================================================================
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enum wxBlockSort_Type
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{
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wxBLOCKSORT_TOPLEFT_BOTTOMRIGHT,
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wxBLOCKSORT_TOPRIGHT_BOTTOMLEFT,
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wxBLOCKSORT_BOTTOMLEFT_TOPRIGHT,
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wxBLOCKSORT_BOTTOMRIGHT_TOPLEFT,
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wxBLOCKSORT_SMALLEST_TO_LARGEST,
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wxBLOCKSORT_LARGEST_TO_SMALLEST
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};
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// functions to sort an array of blocks from any corner
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extern void wxArrayBlockIntSort(wxArrayBlockInt &blocks,
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wxBlockSort_Type type = wxBLOCKSORT_TOPLEFT_BOTTOMRIGHT);
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extern void wxArrayBlockDoubleSort(wxArrayBlockDouble &blocks,
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wxBlockSort_Type type = wxBLOCKSORT_TOPLEFT_BOTTOMRIGHT);
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//=============================================================================
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// wxBlockInt - a rectangle bounded by the corner points that can combine with
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// other wxBlockInts
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//=============================================================================
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class WXDLLIMPEXP_THINGS wxBlockInt
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{
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public:
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inline wxBlockInt(wxInt32 x1=0, wxInt32 y1=0, wxInt32 x2=0, wxInt32 y2=0) : m_x1(x1), m_y1(y1), m_x2(x2), m_y2(y2) {}
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inline wxBlockInt(const wxRect2DInt &rect) : m_x1(rect.m_x), m_y1(rect.m_y), m_x2(rect.GetRight()), m_y2(rect.GetBottom()) {}
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inline wxInt32 GetLeft() const { return m_x1; }
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inline wxInt32 GetRight() const { return m_x2; }
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inline wxInt32 GetTop() const { return m_y1; }
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inline wxInt32 GetBottom() const { return m_y2; }
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inline wxInt32 GetWidth() const { return m_x2 - m_x1 + 1; }
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inline wxInt32 GetHeight() const { return m_y2 - m_y1 + 1; }
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inline wxPoint2DInt GetLeftTop() const { return wxPoint2DInt(m_x1, m_y1); }
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inline wxPoint2DInt GetLeftBottom() const { return wxPoint2DInt(m_x1, m_y2); }
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inline wxPoint2DInt GetRightTop() const { return wxPoint2DInt(m_x2, m_y1); }
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inline wxPoint2DInt GetRightBottom() const { return wxPoint2DInt(m_x2, m_y2); }
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inline wxRect2DInt GetRect2DInt() const { return wxRect2DInt(m_x1, m_y1, m_x2-m_x1+1, m_y2-m_y1+1); }
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inline void SetRect2DInt(const wxRect2DInt &r) { m_x1=r.m_x; m_y1=r.m_y, m_x2=r.GetRight(); m_y2=r.GetBottom(); }
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inline bool Contains( wxInt32 x, wxInt32 y ) const
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{ return ((x >= m_x1) && (x <= m_x2) && (y >= m_y1) && (y <= m_y2)); }
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inline bool Contains( const wxPoint2DInt &pt ) const { return Contains(pt.m_x, pt.m_y); }
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inline bool Contains( const wxBlockInt &b ) const
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{ return ((m_x1 <= b.m_x1) && (b.m_x2 <= m_x2) && (m_y1 <= b.m_y1) && (b.m_y2 <= m_y2)); }
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inline bool Intersects( const wxBlockInt &b ) const
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{ return (wxMax(m_x1, b.m_x1)<=wxMin(m_x2, b.m_x2)) && (wxMax(m_y1, b.m_y1)<=wxMin(m_y2, b.m_y2)); }
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inline void Intersect( const wxBlockInt &otherBlock ) { Intersect( *this, otherBlock, this ); }
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inline void Intersect( const wxBlockInt &src1 , const wxBlockInt &src2 , wxBlockInt *dest ) const
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{
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dest->m_x1 = wxMax(src1.m_x1, src2.m_x1);
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dest->m_x2 = wxMin(src1.m_x2, src2.m_x2);
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dest->m_y1 = wxMax(src1.m_y1, src2.m_y1);
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dest->m_y2 = wxMin(src1.m_y2, src2.m_y2);
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}
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inline void Union( const wxBlockInt &otherBlock ) { Union(*this, otherBlock, this); }
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inline void Union( const wxBlockInt &src1, const wxBlockInt &src2, wxBlockInt *dest ) const
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{
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dest->m_x1 = wxMin(src1.m_x1, src2.m_x1);
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dest->m_x2 = wxMax(src1.m_x2, src2.m_x2);
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dest->m_y1 = wxMin(src1.m_y1, src2.m_y1);
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dest->m_y2 = wxMax(src1.m_y2, src2.m_y2);
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}
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// is this block larger than input block, return 1 = larger, 0 = equal, -1 = smaller
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int IsLarger(const wxBlockInt &b) const
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{
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wxInt32 width = m_x2 - m_x1 + 1,
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height = m_y2 - m_y1 + 1,
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b_width = b.m_x2 - b.m_x1 + 1,
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b_height = b.m_y2 - b.m_y1 + 1;
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if ((width <= 0) || (height <= 0))
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return (b_width > 0) && (b_height > 0) ? -1 : 0;
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if ((b_width <= 0) || (b_height <= 0))
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return (width > 0) && (height > 0) ? 1 : 0;
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wxDouble w_bw = wxDouble(width)/b_width,
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bh_h = wxDouble(b_height)/height;
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return (w_bw == bh_h) ? 0 : ((w_bw > bh_h) ? 1 : -1);
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}
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bool IsEmpty() const { return (m_x1 > m_x2) || (m_y1 > m_y2); }
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// Unlike Intersects this also includes just touching the other block
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bool Touches(const wxBlockInt &block) const;
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// Try to combine these blocks, they must touch and fit to make a single larger block
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// this block is expanded if possible
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bool Combine(const wxBlockInt &block);
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// test combining the input block with this one, returning the
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// remainder of block in top, bottom, left, right - each may be IsEmpty()
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// returns false if blocks don't touch or this block already contains block
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// |---------------------------|
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// | top |
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// |---------------------------|
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// | left |block| right |
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// |---------------------------|
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// | bottom |
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// |---------------------------|
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bool Combine( const wxBlockInt &block,
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wxBlockInt &top, wxBlockInt &bottom,
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wxBlockInt &left, wxBlockInt &right) const;
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// test removal of a portion or all of this contained in block returning the
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// remainder in top, bottom, left, right - each may be IsEmpty()
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// returns false if nothing to delete, this cell is not changed
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bool Delete(const wxBlockInt &block, wxBlockInt &top, wxBlockInt &bottom,
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wxBlockInt &left, wxBlockInt &right) const;
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// operators
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inline bool operator == (const wxBlockInt& b)
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{ return (m_x1==b.m_x1) && (m_y1==b.m_y1) && (m_x2==b.m_x2) && (m_y2==b.m_y2); }
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inline bool operator != (const wxBlockInt& b)
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{ return !(*this == b); }
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wxInt32 m_x1, m_y1, m_x2, m_y2;
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};
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//=============================================================================
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// wxBlockDouble
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//=============================================================================
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class WXDLLIMPEXP_THINGS wxBlockDouble
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{
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public:
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inline wxBlockDouble(wxDouble x1=0, wxDouble y1=0, wxDouble x2=0, wxDouble y2=0)
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: m_x1(x1), m_y1(y1), m_x2(x2), m_y2(y2) {}
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inline wxBlockDouble(const wxRect2DDouble &rect)
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{ m_x1=rect.m_x; m_y1=rect.m_y; m_x2=rect.GetRight(); m_y2=rect.GetBottom(); }
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inline wxDouble GetLeft() const { return m_x1; }
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inline wxDouble GetRight() const { return m_x2; }
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inline wxDouble GetTop() const { return m_y1; }
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inline wxDouble GetBottom() const { return m_y2; }
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inline wxDouble GetWidth() const { return m_x2 - m_x1; }
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inline wxDouble GetHeight() const { return m_y2 - m_y1; }
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inline wxPoint2DDouble GetLeftTop() const { return wxPoint2DDouble(m_x1, m_y1); }
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inline wxPoint2DDouble GetLeftBottom() const { return wxPoint2DDouble(m_x1, m_y2); }
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inline wxPoint2DDouble GetRightTop() const { return wxPoint2DDouble(m_x2, m_y1); }
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inline wxPoint2DDouble GetRightBottom() const { return wxPoint2DDouble(m_x2, m_y2); }
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inline wxRect2DDouble GetRect2DDouble() const { return wxRect2DDouble(m_x1, m_y1, m_x2-m_x1, m_y2-m_y1); }
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inline void SetRect2DDouble(const wxRect2DDouble &r) { m_x1=r.m_x; m_y1=r.m_y, m_x2=r.GetRight(); m_y2=r.GetBottom(); }
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inline bool Contains( wxDouble x, wxDouble y ) const
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{ return ((x >= m_x1) && (x <= m_x2) && (y >= m_y1) && (y <= m_y2)); }
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inline bool Contains( const wxPoint2DDouble &pt ) const { return Contains(pt.m_x, pt.m_y); }
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inline bool Contains( const wxBlockDouble &b ) const
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{ return ((m_x1 <= b.m_x1) && (b.m_x2 <= m_x2) && (m_y1 <= b.m_y1) && (b.m_y2 <= m_y2)); }
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inline bool Intersects( const wxBlockDouble &b ) const
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{ return (wxMax(m_x1, b.m_x1)<wxMin(m_x2, b.m_x2)) && (wxMax(m_y1, b.m_y1)<wxMin(m_y2, b.m_y2)); }
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inline void Intersect( const wxBlockDouble &otherBlock ) { Intersect( *this, otherBlock, this ); }
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inline void Intersect( const wxBlockDouble &src1 , const wxBlockDouble &src2 , wxBlockDouble *dest ) const
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{
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dest->m_x1 = wxMax(src1.m_x1, src2.m_x1);
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dest->m_x2 = wxMin(src1.m_x2, src2.m_x2);
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dest->m_y1 = wxMax(src1.m_y1, src2.m_y1);
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dest->m_y2 = wxMin(src1.m_y2, src2.m_y2);
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}
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inline void Union( const wxBlockDouble &otherBlock ) { Union( *this, otherBlock, this ); }
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inline void Union( const wxBlockDouble &src1, const wxBlockDouble &src2, wxBlockDouble *dest ) const
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{
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dest->m_x1 = wxMin(src1.m_x1, src2.m_x1);
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dest->m_x2 = wxMax(src1.m_x2, src2.m_x2);
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dest->m_y1 = wxMin(src1.m_y1, src2.m_y1);
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dest->m_y2 = wxMax(src1.m_y2, src2.m_y2);
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}
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// is this block larger than input block, return 1 - larger, 0 = equal, -1 smaller
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int IsLarger(const wxBlockDouble &b) const
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{
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wxDouble width = m_x2 - m_x1,
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height = m_y2 - m_y1,
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b_width = b.m_x2 - b.m_x1,
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b_height = b.m_y2 - b.m_y1;
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if ((width <= 0) || (height <= 0))
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return (b_width > 0) && (b_height > 0) ? -1 : 0;
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if ((b_width <= 0) || (b_height <= 0))
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return (width > 0) && (height > 0) ? 1 : 0;
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wxDouble w_bw = width/b_width,
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bh_h = b_height/height;
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return (w_bw == bh_h) ? 0 : ((w_bw > bh_h) ? 1 : -1);
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}
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inline bool IsEmpty() const { return (m_x1 > m_x2) || (m_y1 > m_y2); }
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// Unlike Intersects this also includes just touching the other block
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bool Touches(const wxBlockDouble &block) const;
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// Try to combine these blocks, they must touch and fit to make a single larger block
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// this block is expanded if possible
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bool Combine(const wxBlockDouble &block);
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// test combining the input block with this one, returning the
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// remainder of block in top, bottom, left, right - each may be IsEmpty()
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// returns false if blocks don't touch or this block already contains block
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// |---------------------------|
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// | top |
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// |---------------------------|
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// | left |block| right |
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// |---------------------------|
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// | bottom |
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// |---------------------------|
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bool Combine( const wxBlockDouble &block,
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wxBlockDouble &top, wxBlockDouble &bottom,
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wxBlockDouble &left, wxBlockDouble &right) const;
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// test removal of a portion or all of this contained in block returning the
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// remainder in top, bottom, left, right - each may be IsEmpty()
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// returns false if nothing to delete, this cell is not changed
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bool Delete( const wxBlockDouble &block,
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wxBlockDouble &top, wxBlockDouble &bottom,
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wxBlockDouble &left, wxBlockDouble &right) const;
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// operators
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inline bool operator == (const wxBlockDouble& b)
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{ return (m_x1==b.m_x1) && (m_y1==b.m_y1) && (m_x2==b.m_x2) && (m_y2==b.m_y2); }
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inline bool operator != (const wxBlockDouble& b)
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{ return !(*this == b); }
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wxDouble m_x1, m_y1, m_x2, m_y2;
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};
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//=============================================================================
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// wxBlockIntSelection - ordered 2D array of wxBlockInts, combines to minimize size
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// blocks never overlap each other
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//=============================================================================
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class WXDLLIMPEXP_THINGS wxBlockIntSelection
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{
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public :
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wxBlockIntSelection(wxBlockSort_Type sort_type = wxBLOCKSORT_TOPLEFT_BOTTOMRIGHT)
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: m_sort(sort_type) {}
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wxBlockIntSelection(const wxBlockIntSelection &blocks,
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wxBlockSort_Type sort_type = wxBLOCKSORT_TOPLEFT_BOTTOMRIGHT)
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: m_sort(sort_type) { Copy(blocks); }
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// Make a full copy of the source
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void Copy(const wxBlockIntSelection &source)
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{
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m_blocks.Clear();
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WX_APPEND_ARRAY(m_blocks, source.GetBlockArray());
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m_sort = source.GetSortType();
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}
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inline int GetCount() const { return m_blocks.GetCount(); }
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inline void Clear() { m_blocks.Clear(); }
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wxArrayBlockInt GetBlockArray() const { return m_blocks; }
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#ifdef USE_wxRANGE
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// Get an array of ranges cutting though these blocks
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wxArrayRangeInt GetBlockCol(int col) const;
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wxArrayRangeInt GetBlockRow(int row) const;
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#endif
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wxBlockInt GetBlock( int index ) const;
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inline wxBlockInt Item( int index ) const { return GetBlock(index); }
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// Get a block that bounds the selection
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wxBlockInt GetBoundingBlock() const;
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// do any of the blocks contains elements
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inline bool Contains( int x, int y ) const { return Index(x,y) != wxNOT_FOUND; }
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inline bool Contains( const wxPoint2DInt &pt ) const { return Index(pt) != wxNOT_FOUND; }
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inline bool Contains( const wxBlockInt &b ) const { return Index(b) != wxNOT_FOUND; }
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// what is the index of a block that contains element
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int Index( int x, int y ) const;
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inline int Index( const wxPoint2DInt &pt ) const { return Index(pt.m_x, pt.m_y); }
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int Index( const wxBlockInt &b ) const;
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// Sorts the blocks according to the wxBlockIntSort_Type
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void Sort(wxBlockSort_Type type = wxBLOCKSORT_TOPRIGHT_BOTTOMLEFT);
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wxBlockSort_Type GetSortType() const { return m_sort; }
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// Add the block to the selection, returns false if nothing was done
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// use combineNow=false to make quick additions, when done call Minimize()
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// addedBlocks (if !NULL) will be filled with the actual changed selections
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// by removing the previous selections from the input block
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bool SelectBlock( const wxBlockInt &block, bool combineNow=true, wxArrayBlockInt *addedBlocks=NULL);
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// Remove the block to the selection, return false if nothing was done
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// use combineNow=false to make quick additions, when done call Minimize()
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bool DeselectBlock( const wxBlockInt &block, bool combineNow=true);
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// Try to combine the blocks if possible, returns if anything was done
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// only need to call this if you've called (De)SelectBlock(..., false)
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bool Minimize();
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// Operators
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inline wxBlockInt operator[](int index) const { return GetBlock(index); }
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//wxBlockIntSelection& operator = (const wxBlockIntSelection& other) { Copy(other); return *this; }
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// generic routine using if (b1.Combine(b2)) remove b2 to cleanup array
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// sort top_left_bottom_right first (internal use)
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static bool DoMinimize( wxArrayBlockInt &blocks );
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// DoMinimize calls this internally
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static bool DoDoMinimize( wxArrayBlockInt &blocks );
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protected :
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wxArrayBlockInt m_blocks;
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wxBlockSort_Type m_sort;
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};
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//=============================================================================
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// wxBlockDoubleSelection - ordered 2D array of wxBlockDoubles, combines to minimze size
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// blocks never overlap each other
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//=============================================================================
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class WXDLLIMPEXP_THINGS wxBlockDoubleSelection
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{
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public :
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wxBlockDoubleSelection(wxBlockSort_Type sort_type = wxBLOCKSORT_TOPLEFT_BOTTOMRIGHT)
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: m_sort(sort_type) {}
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wxBlockDoubleSelection(const wxBlockDoubleSelection &blocks,
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wxBlockSort_Type sort_type = wxBLOCKSORT_TOPLEFT_BOTTOMRIGHT)
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: m_sort(sort_type) { Copy(blocks); }
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// Make a full copy of the source
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void Copy(const wxBlockDoubleSelection &source)
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{
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m_blocks.Clear();
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WX_APPEND_ARRAY(m_blocks, source.GetBlockArray());
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m_sort = source.GetSortType();
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}
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inline int GetCount() const { return m_blocks.GetCount(); }
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inline void Clear() { m_blocks.Clear(); }
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wxArrayBlockDouble GetBlockArray() const { return m_blocks; }
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#ifdef USE_wxRANGE
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// Get an array of ranges cutting though these blocks
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wxArrayRangeDouble GetBlockCol(wxDouble col) const;
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wxArrayRangeDouble GetBlockRow(wxDouble row) const;
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#endif
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wxBlockDouble GetBlock( int index ) const;
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inline wxBlockDouble Item( int index ) const { return GetBlock(index); }
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// Get a block that bounds the selection
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wxBlockDouble GetBoundingBlock() const;
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// do any of the blocks contains elements
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inline bool Contains( wxDouble x, wxDouble y ) const { return Index(wxPoint2DDouble(x,y)) != wxNOT_FOUND; }
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inline bool Contains( const wxPoint2DInt &pt ) const { return Index(pt) != wxNOT_FOUND; }
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inline bool Contains( const wxBlockDouble &b ) const { return Index(b) != wxNOT_FOUND; }
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// what is the index of a block that contains element
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int Index( wxDouble x, wxDouble y ) const;
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inline int Index( const wxPoint2DDouble &pt ) const { return Index(pt.m_x, pt.m_y); }
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int Index( const wxBlockDouble &b ) const;
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// Sorts the blocks according to the wxBlockIntSort_Type
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void Sort(wxBlockSort_Type type = wxBLOCKSORT_TOPRIGHT_BOTTOMLEFT);
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wxBlockSort_Type GetSortType() const { return m_sort; }
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// Add the block to the selection, returns false if nothing was done
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// use combineNow=false to make quick additions, when done call Minimize()
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bool SelectBlock( const wxBlockDouble &block, bool combineNow=true);
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// Remove the block to the selection, return false if nothing was done
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// use combineNow=false to make quick additions, when done call Minimize()
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bool DeselectBlock( const wxBlockDouble &block, bool combineNow=true);
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// Try to combine the blocks if possible, returns if anything was done
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// only need to call this if you've called (De)SelectBlock(..., false)
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bool Minimize();
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// Operators
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inline wxBlockDouble operator[](int index) const { return GetBlock(index); }
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//wxBlockIntSelection& operator = (const wxBlockIntSelection& other) { Copy(other); return *this; }
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// generic routine using if (b1.Combine(b2)) remove b2 to cleanup array
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// sort top_left_bottom_right first (internal use)
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static bool DoMinimize( wxArrayBlockDouble &blocks );
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// DoMinimize calls this internally
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static bool DoDoMinimize( wxArrayBlockDouble &blocks );
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protected :
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wxArrayBlockDouble m_blocks;
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wxBlockSort_Type m_sort;
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};
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//=============================================================================
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// wxBlockIntSelectionIterator - iterates through a wxBlockIntSelection
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//=============================================================================
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enum wxBISI_Type
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{
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wxBISI_POINT, // wxBlockIntSelectionIterator::SetType go point by point
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wxBISI_BLOCK // go block by block
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};
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class WXDLLIMPEXP_THINGS wxBlockIntSelectionIterator
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{
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public :
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wxBlockIntSelectionIterator( const wxBlockIntSelection &sel, wxBISI_Type type = wxBISI_POINT );
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wxBlockIntSelectionIterator( const wxArrayBlockInt &blocks, wxBISI_Type type = wxBISI_POINT );
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// resets the iterating to start at the beginning
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void Reset();
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// Set the method to get the blocks, either point by point or each whole block
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// also resets the iteration to the beginning
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void SetType( wxBISI_Type type ) { m_type = type; Reset(); }
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wxBISI_Type GetType() const { return m_type; }
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// Get next selection, returns false if at end (only valid for wxBISI_point)
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bool GetNext(wxPoint2DInt &pt);
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// Get next selection, returns false if at end (only valid for wxBISI_block)
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bool GetNext(wxBlockInt &block);
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// checks if this row and col are in this selection
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bool IsInSelection(const wxPoint2DInt &pt) const;
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inline bool IsInSelection( int x, int y ) const { return IsInSelection(wxPoint2DInt(x,y)); }
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protected :
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wxBISI_Type m_type;
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int m_block_index;
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wxPoint2DInt m_pt;
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wxArrayBlockInt m_blocks;
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};
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//=============================================================================
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// wxBlockDoubleSelectionIterator - iterates through a wxBlockDoubleSelection
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//=============================================================================
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class WXDLLIMPEXP_THINGS wxBlockDoubleSelectionIterator
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{
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public :
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wxBlockDoubleSelectionIterator( const wxBlockDoubleSelection &sel );
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wxBlockDoubleSelectionIterator( const wxArrayBlockDouble &blocks );
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// resets the iterating to start at the beginning
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void Reset();
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// Get next selection, returns false if at the end
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bool GetNext(wxBlockDouble &block);
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// checks if this row and col are in this selection
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bool IsInSelection(const wxPoint2DDouble &pt) const;
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inline bool IsInSelection( int x, int y ) const { return IsInSelection(wxPoint2DDouble(x,y)); }
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protected :
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size_t m_block_index;
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wxArrayBlockDouble m_blocks;
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};
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#endif // __wxBLOCK_H__
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