643 lines
16 KiB
Text
643 lines
16 KiB
Text
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/////////////////////////////////////////////////////////////////////////////
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// Name: range.cpp
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// Purpose: Simple min-max range class and associated selection array class
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// Author: John Labenski
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// Created: 12/01/2000
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// Copyright: (c) John Labenski 2004
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// Licence: wxWidgets
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/////////////////////////////////////////////////////////////////////////////
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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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#pragma implementation "range.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/utils.h"
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#endif // WX_PRECOMP
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#include "wx/things/range.h"
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#include <stdio.h>
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const wxRangeInt wxEmptyRangeInt(0, -1);
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const wxRangeDouble wxEmptyRangeDouble(0, -1);
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#include "wx/arrimpl.cpp"
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WX_DEFINE_OBJARRAY(wxArrayRangeInt);
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WX_DEFINE_OBJARRAY(wxArrayRangeDouble);
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WX_DEFINE_OBJARRAY(wxArrayRangeIntSelection);
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WX_DEFINE_OBJARRAY(wxArrayRangeDoubleSelection);
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// set this if you want to double check that that ranges are really working
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//#define CHECK_RANGES
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//=============================================================================
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// wxRangeInt
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//=============================================================================
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bool wxRangeInt::Combine(int i, bool only_if_touching)
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{
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if (only_if_touching)
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{
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if (i == m_min-1) { m_min--; return true; }
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else if (i == m_max+1) { m_max++; return true; }
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}
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else
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{
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if (i < m_min) { m_min = i; return true; }
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else if (i > m_max) { m_max = i; return true; }
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}
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return false;
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}
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bool wxRangeInt::Combine( const wxRangeInt &r, bool only_if_touching )
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{
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if (only_if_touching)
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{
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if (Touches(r))
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{
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*this+=r;
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return true;
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}
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}
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else
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{
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bool added = false;
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if (r.m_min < m_min) { m_min = r.m_min; added = true; }
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if (r.m_max > m_max) { m_max = r.m_max; added = true; }
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return added;
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}
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return false;
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}
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bool wxRangeInt::Delete( const wxRangeInt &r, wxRangeInt *right )
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{
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if (!Contains(r))
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return false;
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if (right) *right = wxEmptyRangeInt;
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if (r.m_min <= m_min)
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{
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if (r.m_max >= m_max)
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{
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*this = wxEmptyRangeInt;
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return true;
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}
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m_min = r.m_max + 1;
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return true;
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}
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if (r.m_max >= m_max)
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{
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m_max = r.m_min - 1;
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return true;
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}
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if (right)
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*right = wxRangeInt(r.m_max + 1, m_max);
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m_max = r.m_min - 1;
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return true;
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}
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//=============================================================================
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// wxRangeIntSelection
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//=============================================================================
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const wxRangeInt& wxRangeIntSelection::GetRange( int index ) const
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{
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wxCHECK_MSG((index>=0) && (index<int(m_ranges.GetCount())), wxEmptyRangeInt, wxT("Invalid index"));
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return m_ranges[index];
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}
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wxRangeInt wxRangeIntSelection::GetBoundingRange() const
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{
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if (int(m_ranges.GetCount()) < 1) return wxEmptyRangeInt;
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return wxRangeInt(m_ranges[0].m_min, m_ranges[m_ranges.GetCount()-1].m_max);
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}
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int wxRangeIntSelection::Index( int i ) const
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{
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int count = m_ranges.GetCount();
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if (count < 1) return wxNOT_FOUND;
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if (i < m_ranges[0].m_min) return wxNOT_FOUND;
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if (i > m_ranges[count-1].m_max) return wxNOT_FOUND;
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// Binary search
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int res, tmp, lo = 0, hi = count;
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while ( lo < hi )
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{
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tmp = (lo + hi)/2;
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res = m_ranges[tmp].Position(i);
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if (res == 0)
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return tmp;
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else if ( res < 0 )
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hi = tmp;
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else //if ( res > 0 )
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lo = tmp + 1;
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}
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return wxNOT_FOUND;
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}
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int wxRangeIntSelection::Index( const wxRangeInt &r ) const
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{
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register int i, count = m_ranges.GetCount();
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for (i=0; i<count; i++) if (m_ranges[i].Contains(r)) return i;
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return wxNOT_FOUND;
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}
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int wxRangeIntSelection::NearestIndex( int i ) const
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{
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int count = m_ranges.GetCount();
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if (count < 1) return -1;
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if (i < m_ranges[0].m_min) return -1;
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if (i > m_ranges[count-1].m_max) return count;
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// Binary search
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int res, tmp, lo = 0, hi = count;
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while ( lo < hi )
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{
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tmp = (lo + hi)/2;
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res = m_ranges[tmp].Position(i);
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if ( res == 0 )
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return tmp;
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else if ((i >= m_ranges[tmp].m_max) && (i < m_ranges[wxMin(tmp+1, count-1)].m_min))
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return tmp;
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else if ( res < 0 )
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hi = tmp;
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else //if ( res > 0 )
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lo = tmp + 1;
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}
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// oops shouldn't get here
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wxCHECK_MSG(0, -1, wxT("Error calculating NearestIndex in wxRangeIntSelection"));
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}
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int wxRangeIntSelection::GetItemCount() const
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{
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register int i, items = 0, count = m_ranges.GetCount();
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for (i=0; i<count; i++) items += m_ranges[i].GetRange();
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return items;
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}
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bool wxRangeIntSelection::DeselectRange(const wxRangeInt &range)
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{
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wxCHECK_MSG(!range.IsEmpty(), false, wxT("Invalid Selection Range") );
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bool done = false;
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int i, count = m_ranges.GetCount();
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int nearest = count > 0 ? NearestIndex(range.m_min) : -1;
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if ((nearest < 0) || (nearest == count))
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return false;
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wxRangeInt r;
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for (i=nearest; i<int(m_ranges.GetCount()); i++)
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{
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if (range.m_max < m_ranges[i].m_min)
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break;
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else if (m_ranges[i].Delete(range, &r))
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{
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if (m_ranges[i].IsEmpty())
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{
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m_ranges.RemoveAt(i);
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i = (i > 0) ? i-1 : -1;
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}
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else if (!r.IsEmpty())
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m_ranges.Insert(r, i+1);
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done = true;
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}
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}
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return done;
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}
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bool wxRangeIntSelection::SelectRange(const wxRangeInt &range)
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{
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wxCHECK_MSG(!range.IsEmpty(), false, wxT("Invalid Selection Range") );
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// Try to find a range that includes this one and combine it, else insert it, else append it
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bool done = false;
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int i, count = m_ranges.GetCount();
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int nearest = count > 0 ? NearestIndex(range.m_min) : -1;
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if (nearest < 0)
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{
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if (!((count > 0) && m_ranges[0].Combine(range, true)))
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m_ranges.Insert(range, 0);
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return true;
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}
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else if (nearest == count)
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{
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if (!((count > 0) && m_ranges[count-1].Combine(range, true)))
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m_ranges.Add(range);
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return true;
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}
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else
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{
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if (m_ranges[nearest].Contains(range))
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return false;
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for (i=nearest; i<count; i++)
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{
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if (m_ranges[i].Combine(range, true))
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{
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done = true;
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break;
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}
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else if (range.m_max < m_ranges[i].m_min)
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{
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m_ranges.Insert(range, i);
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return true;
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}
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}
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count = m_ranges.GetCount();
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for (i=wxMax(nearest-1, 1); i<count; i++)
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{
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if (range.m_max+1 < m_ranges[i-1].m_min)
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break;
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else if (m_ranges[i-1].Combine(m_ranges[i], true))
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{
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m_ranges.RemoveAt(i);
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count--;
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i--;
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}
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}
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}
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#ifdef CHECK_RANGES
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printf("Selecting ranges %d %d count %d\n", range.m_min, range.m_max, m_ranges.GetCount());
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for (i=1; i<int(m_ranges.GetCount()); i++)
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{
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if (m_ranges[i-1].Contains(m_ranges[i]))
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printf("Error in Selecting ranges %d %d, %d %d count %d\n", m_ranges[i-1].m_min, m_ranges[i-1].m_max, m_ranges[i].m_min, m_ranges[i].m_max, m_ranges.GetCount());
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if (m_ranges[i-1].Touches(m_ranges[i]))
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printf("Could have minimzed ranges %d %d, %d %d count %d\n", m_ranges[i-1].m_min, m_ranges[i-1].m_max, m_ranges[i].m_min, m_ranges[i].m_max, m_ranges.GetCount());
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}
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fflush(stdout);
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#endif // CHECK_RANGES
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return done;
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}
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bool wxRangeIntSelection::BoundRanges(const wxRangeInt& range)
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{
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wxCHECK_MSG(!range.IsEmpty(), false, wxT("Invalid Bounding Range") );
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int i, count = m_ranges.GetCount();
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bool done = false;
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for (i = 0; i < count; i++)
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{
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if (m_ranges[i].m_min >= range.m_min)
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break;
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if (m_ranges[i].m_max < range.m_min) // range is out of bounds
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{
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done = true;
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m_ranges.RemoveAt(i);
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count--;
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i--;
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}
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else
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{
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done = true;
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m_ranges[i].m_min = range.m_min;
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break;
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}
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}
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for (i = m_ranges.GetCount() - 1; i >= 0; i--)
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{
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if (m_ranges[i].m_max <= range.m_max)
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break;
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if (m_ranges[i].m_min > range.m_max) // range is out of bounds
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{
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done = true;
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m_ranges.RemoveAt(i);
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}
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else
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{
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done = true;
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m_ranges[i].m_max = range.m_max;
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break;
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}
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}
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return done;
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}
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//=============================================================================
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// wxRangeDouble
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//=============================================================================
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bool wxRangeDouble::Combine(double i)
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{
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if (i < m_min) { m_min = i; return true; }
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else if (i > m_max) { m_max = i; return true; }
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return false;
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}
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bool wxRangeDouble::Combine( const wxRangeDouble &r, bool only_if_touching )
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{
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if (only_if_touching)
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{
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if (Contains(r))
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{
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*this+=r;
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return true;
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}
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}
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else
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{
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bool added = false;
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if (r.m_min < m_min) { m_min = r.m_min; added = true; }
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if (r.m_max > m_max) { m_max = r.m_max; added = true; }
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return added;
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}
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return false;
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}
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bool wxRangeDouble::Delete( const wxRangeDouble &r, wxRangeDouble *right )
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{
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if (!Contains(r))
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return false;
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if (right) *right = wxEmptyRangeDouble;
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if (r.m_min <= m_min)
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{
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if (r.m_max >= m_max)
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{
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*this = wxEmptyRangeDouble;
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return true;
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|
|
}
|
||
|
|
|
||
|
|
m_min = r.m_max;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (r.m_max >= m_max)
|
||
|
|
{
|
||
|
|
m_max = r.m_min;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (right)
|
||
|
|
*right = wxRangeDouble(r.m_max, m_max);
|
||
|
|
|
||
|
|
m_max = r.m_min;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
//=============================================================================
|
||
|
|
// wxRangeDoubleSelection
|
||
|
|
//=============================================================================
|
||
|
|
const wxRangeDouble& wxRangeDoubleSelection::GetRange( int index ) const
|
||
|
|
{
|
||
|
|
wxCHECK_MSG((index>=0) && (index<int(m_ranges.GetCount())), wxEmptyRangeDouble, wxT("Invalid index"));
|
||
|
|
return m_ranges[index];
|
||
|
|
}
|
||
|
|
|
||
|
|
wxRangeDouble wxRangeDoubleSelection::GetBoundingRange() const
|
||
|
|
{
|
||
|
|
if (int(m_ranges.GetCount()) < 1) return wxEmptyRangeDouble;
|
||
|
|
return wxRangeDouble(m_ranges[0].m_min, m_ranges[m_ranges.GetCount()-1].m_max);
|
||
|
|
}
|
||
|
|
|
||
|
|
int wxRangeDoubleSelection::Index( wxDouble i ) const
|
||
|
|
{
|
||
|
|
int count = m_ranges.GetCount();
|
||
|
|
if (count < 1) return wxNOT_FOUND;
|
||
|
|
|
||
|
|
if (i < m_ranges[0].m_min) return wxNOT_FOUND;
|
||
|
|
if (i > m_ranges[count-1].m_max) return wxNOT_FOUND;
|
||
|
|
|
||
|
|
// Binary search
|
||
|
|
int res, tmp, lo = 0, hi = count;
|
||
|
|
|
||
|
|
while ( lo < hi )
|
||
|
|
{
|
||
|
|
tmp = (lo + hi)/2;
|
||
|
|
res = m_ranges[tmp].Position(i);
|
||
|
|
|
||
|
|
if ( res == 0 )
|
||
|
|
return tmp;
|
||
|
|
else if ( res < 0 )
|
||
|
|
hi = tmp;
|
||
|
|
else //if ( res > 0 )
|
||
|
|
lo = tmp + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return wxNOT_FOUND;
|
||
|
|
|
||
|
|
/*
|
||
|
|
for (register int j=0; j<count; j++)
|
||
|
|
{
|
||
|
|
if (m_ranges[j].Contains(i)) return j;
|
||
|
|
}
|
||
|
|
*/
|
||
|
|
}
|
||
|
|
|
||
|
|
int wxRangeDoubleSelection::Index( const wxRangeDouble &r ) const
|
||
|
|
{
|
||
|
|
register int i, count = m_ranges.GetCount();
|
||
|
|
for (i=0; i<count; i++) if (m_ranges[i].Contains(r)) return i;
|
||
|
|
return wxNOT_FOUND;
|
||
|
|
}
|
||
|
|
|
||
|
|
int wxRangeDoubleSelection::NearestIndex( wxDouble i ) const
|
||
|
|
{
|
||
|
|
register int count = m_ranges.GetCount();
|
||
|
|
if (count < 1) return -1;
|
||
|
|
|
||
|
|
if (i < m_ranges[0].m_min) return -1;
|
||
|
|
if (i > m_ranges[count-1].m_max) return count;
|
||
|
|
|
||
|
|
// Binary search
|
||
|
|
int res, tmp, lo = 0, hi = count;
|
||
|
|
|
||
|
|
while ( lo < hi )
|
||
|
|
{
|
||
|
|
tmp = (lo + hi)/2;
|
||
|
|
res = m_ranges[tmp].Position(i);
|
||
|
|
|
||
|
|
if ( res == 0 )
|
||
|
|
return tmp;
|
||
|
|
else if ((i >= m_ranges[tmp].m_max) && (i < m_ranges[wxMin(tmp+1, count-1)].m_min))
|
||
|
|
return tmp;
|
||
|
|
else if ( res < 0 )
|
||
|
|
hi = tmp;
|
||
|
|
else //if ( res > 0 )
|
||
|
|
lo = tmp + 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
// oops shouldn't get here
|
||
|
|
wxCHECK_MSG(0, -1, wxT("Error calculating NearestIndex in wxRangeDoubleSelection"));
|
||
|
|
}
|
||
|
|
|
||
|
|
bool wxRangeDoubleSelection::SelectRange(const wxRangeDouble &range)
|
||
|
|
{
|
||
|
|
wxCHECK_MSG(!range.IsEmpty(), false, wxT("Invalid Selection Range") );
|
||
|
|
|
||
|
|
// Try to find a range that includes this one and combine it, else insert it, else append it
|
||
|
|
bool done = false;
|
||
|
|
int i, count = m_ranges.GetCount();
|
||
|
|
int nearest = count > 0 ? NearestIndex(range.m_min) : -1;
|
||
|
|
|
||
|
|
if (nearest < 0)
|
||
|
|
{
|
||
|
|
if (!((count > 0) && m_ranges[0].Combine(range, true)))
|
||
|
|
m_ranges.Insert(range, 0);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else if (nearest == count)
|
||
|
|
{
|
||
|
|
if (!((count > 0) && m_ranges[count-1].Combine(range, true)))
|
||
|
|
m_ranges.Add(range);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
if (m_ranges[nearest].Contains(range))
|
||
|
|
return false;
|
||
|
|
|
||
|
|
for (i=nearest; i<count; i++)
|
||
|
|
{
|
||
|
|
if (m_ranges[i].Combine(range, true))
|
||
|
|
{
|
||
|
|
done = true;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
else if (range.m_max < m_ranges[i].m_min)
|
||
|
|
{
|
||
|
|
m_ranges.Insert(range, i);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for (i=wxMax(nearest-1, 1); i<int(m_ranges.GetCount()); i++)
|
||
|
|
{
|
||
|
|
if (range.m_max+1 < m_ranges[i-1].m_min)
|
||
|
|
break;
|
||
|
|
else if (m_ranges[i-1].Combine(m_ranges[i], true))
|
||
|
|
{
|
||
|
|
m_ranges.RemoveAt(i);
|
||
|
|
i--;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef CHECK_RANGES
|
||
|
|
printf("Selecting ranges %g %g count %d\n", range.m_min, range.m_max, m_ranges.GetCount());
|
||
|
|
|
||
|
|
for (i=1; i<int(m_ranges.GetCount()); i++)
|
||
|
|
{
|
||
|
|
if (m_ranges[i-1].Contains(m_ranges[i]))
|
||
|
|
printf("Error in Selecting ranges %g %g, %g %g count %d\n", m_ranges[i-1].m_min, m_ranges[i-1].m_max, m_ranges[i].m_min, m_ranges[i].m_max, m_ranges.GetCount());
|
||
|
|
//if (m_ranges[i-1].Touches(m_ranges[i]))
|
||
|
|
// printf("Could have minimzed ranges %g %g, %g %g count %d\n", m_ranges[i-1].m_min, m_ranges[i-1].m_max, m_ranges[i].m_min, m_ranges[i].m_max, m_ranges.GetCount());
|
||
|
|
}
|
||
|
|
fflush(stdout);
|
||
|
|
#endif // CHECK_RANGES
|
||
|
|
|
||
|
|
return done;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool wxRangeDoubleSelection::DeselectRange(const wxRangeDouble &range)
|
||
|
|
{
|
||
|
|
wxCHECK_MSG(!range.IsEmpty(), false, wxT("Invalid Selection Range") );
|
||
|
|
|
||
|
|
bool done = false;
|
||
|
|
int i, count = m_ranges.GetCount();
|
||
|
|
int nearest = count > 0 ? NearestIndex(range.m_min) : -1;
|
||
|
|
|
||
|
|
if ((nearest < 0) || (nearest == count))
|
||
|
|
return false;
|
||
|
|
|
||
|
|
wxRangeDouble r;
|
||
|
|
for (i=nearest; i<int(m_ranges.GetCount()); i++)
|
||
|
|
{
|
||
|
|
if (range.m_max < m_ranges[i].m_min)
|
||
|
|
break;
|
||
|
|
else if (m_ranges[i].Delete(range, &r))
|
||
|
|
{
|
||
|
|
if (m_ranges[i].IsEmpty())
|
||
|
|
{
|
||
|
|
m_ranges.RemoveAt(i);
|
||
|
|
i = (i > 0) ? i-1 : -1;
|
||
|
|
}
|
||
|
|
else if (!r.IsEmpty())
|
||
|
|
m_ranges.Insert(r, i+1);
|
||
|
|
|
||
|
|
done = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return done;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool wxRangeDoubleSelection::BoundRanges(const wxRangeDouble& range)
|
||
|
|
{
|
||
|
|
wxCHECK_MSG(!range.IsEmpty(), false, wxT("Invalid Bounding Range") );
|
||
|
|
int i, count = m_ranges.GetCount();
|
||
|
|
bool done = false;
|
||
|
|
|
||
|
|
for (i = 0; i < count; i++)
|
||
|
|
{
|
||
|
|
if (m_ranges[i].m_min >= range.m_min)
|
||
|
|
break;
|
||
|
|
|
||
|
|
if (m_ranges[i].m_max < range.m_min) // range is out of bounds
|
||
|
|
{
|
||
|
|
done = true;
|
||
|
|
m_ranges.RemoveAt(i);
|
||
|
|
count--;
|
||
|
|
i--;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
done = true;
|
||
|
|
m_ranges[i].m_min = range.m_min;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (i = m_ranges.GetCount() - 1; i >= 0; i--)
|
||
|
|
{
|
||
|
|
if (m_ranges[i].m_max <= range.m_max)
|
||
|
|
break;
|
||
|
|
|
||
|
|
if (m_ranges[i].m_min > range.m_max) // range is out of bounds
|
||
|
|
{
|
||
|
|
done = true;
|
||
|
|
m_ranges.RemoveAt(i);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
done = true;
|
||
|
|
m_ranges[i].m_max = range.m_max;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return done;
|
||
|
|
}
|