///
/// Copyright (C) 2004-2007 Andrej Vodopivec <andrejv@users.sourceforge.net>
///
/// This program is free software; you can redistribute it and/or modify
/// it under the terms of the GNU General Public License as published by
/// the Free Software Foundation; either version 2 of the License, or
/// (at your option) any later version.
///
/// This program is distributed in the hope that it will be useful,
/// but WITHOUT ANY WARRANTY; without even the implied warranty of
/// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
/// GNU General Public License for more details.
///
///
/// You should have received a copy of the GNU General Public License
/// along with this program; if not, write to the Free Software
/// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
///
#include "SumCell.h"
#include "TextCell.h"
SumCell::SumCell() : MathCell()
{
m_base = NULL;
m_under = NULL;
m_over = NULL;
m_signSize = 50;
m_signWidth = 30;
m_signCenter = 15;
m_sumStyle = SM_SUM;
}
SumCell::~SumCell()
{
if (m_base != NULL)
delete m_base;
if (m_under != NULL)
delete m_under;
if (m_over != NULL)
delete m_over;
if (m_next != NULL)
delete m_next;
}
MathCell* SumCell::Copy(bool all)
{
SumCell *tmp = new SumCell;
CopyData(this, tmp);
tmp->SetBase(m_base->Copy(true));
tmp->SetUnder(m_under->Copy(true));
tmp->SetOver(m_over->Copy(true));
tmp->m_sumStyle = m_sumStyle;
if (all && m_next != NULL)
tmp->AppendCell(m_next->Copy(all));
return tmp;
}
void SumCell::Destroy()
{
if (m_base != NULL)
delete m_base;
if (m_under != NULL)
delete m_under;
if (m_over != NULL)
delete m_over;
m_next = NULL;
m_base = NULL;
m_under = NULL;
m_over = NULL;
}
void SumCell::SetOver(MathCell* over)
{
if (over == NULL)
return ;
if (m_over != NULL)
delete m_over;
m_over = over;
}
void SumCell::SetBase(MathCell* base)
{
if (base == NULL)
return ;
if (m_base != NULL)
delete m_base;
m_base = base;
}
void SumCell::SetUnder(MathCell *under)
{
if (under == NULL)
return ;
if (m_under != NULL)
delete m_under;
m_under = under;
}
void SumCell::RecalculateWidths(CellParser& parser, int fontsize, bool all)
{
double scale = parser.GetScale();
m_signSize = SCALE_PX(50, scale);
m_signWidth = SCALE_PX(30, scale);
m_signCenter = SCALE_PX(15, scale);
m_base->RecalculateWidths(parser, fontsize, true);
m_under->RecalculateWidths(parser, MAX(8, fontsize - 5), true);
if (m_over == NULL)
m_over = new TextCell;
m_over->RecalculateWidths(parser, MAX(8, fontsize - 5), true);
m_signCenter = MAX(m_signCenter, m_under->GetFullWidth(scale) / 2);
m_signCenter = MAX(m_signCenter, m_over->GetFullWidth(scale) / 2);
m_width = 2 * m_signCenter + m_base->GetFullWidth(scale) + SCALE_PX(4, scale);
MathCell::RecalculateWidths(parser, fontsize, all);
}
void SumCell::RecalculateSize(CellParser& parser, int fontsize, bool all)
{
double scale = parser.GetScale();
m_under->RecalculateSize(parser, MAX(8, fontsize - 5), true);
m_over->RecalculateSize(parser, MAX(8, fontsize - 5), true);
m_base->RecalculateSize(parser, fontsize, true);
m_center = MAX(m_over->GetMaxHeight() + SCALE_PX(4, scale) + m_signSize / 2,
m_base->GetMaxCenter());
m_height = m_center +
MAX(m_under->GetMaxHeight() + SCALE_PX(4, scale) + m_signSize / 2,
m_base->GetMaxDrop());
MathCell::RecalculateSize(parser, fontsize, all);
}
void SumCell::Draw(CellParser& parser, wxPoint point, int fontsize, bool all)
{
if (DrawThisCell(parser, point))
{
wxDC& dc = parser.GetDC();
double scale = parser.GetScale();
wxPoint base(point), under(point), over(point);
under.x += m_signCenter - m_under->GetFullWidth(scale) / 2;
under.y = point.y + m_signSize / 2 + m_under->GetMaxCenter() + 2;
m_under->Draw(parser, under, MAX(8, fontsize - 5), true);
over.x += m_signCenter - m_over->GetFullWidth(scale) / 2;
over.y = point.y - m_signSize / 2 - m_over->GetMaxDrop() - 2;
m_over->Draw(parser, over, MAX(8, fontsize - 5), true);
SetPen(parser);
if (m_sumStyle == SM_SUM)
{
//DRAW SUM SIGN
// Upper part
dc.DrawLine(point.x + m_signCenter + m_signWidth / 6,
point.y,
point.x + m_signCenter - m_signWidth / 2,
point.y - m_signSize / 2 + 1);
dc.DrawLine(point.x + m_signCenter - m_signWidth / 2,
point.y - m_signSize / 2,
point.x + m_signCenter + m_signWidth / 2,
point.y - m_signSize / 2);
dc.DrawLine(point.x + m_signCenter - m_signWidth / 2,
point.y - m_signSize / 2 + 1,
point.x + m_signCenter + m_signWidth / 2,
point.y - m_signSize / 2 + 1);
dc.DrawLine(point.x + m_signCenter + m_signWidth / 2,
point.y - m_signSize / 2,
point.x + m_signCenter + m_signWidth / 2,
point.y - m_signSize / 2 + SCALE_PX(5, scale));
// Lower part
dc.DrawLine(point.x + m_signCenter + m_signWidth / 6,
point.y,
point.x + m_signCenter - m_signWidth / 2,
point.y + m_signSize / 2 - 1);
dc.DrawLine(point.x + m_signCenter - m_signWidth / 2,
point.y + m_signSize / 2,
point.x + m_signCenter + m_signWidth / 2,
point.y + m_signSize / 2);
dc.DrawLine(point.x + m_signCenter - m_signWidth / 2,
point.y + m_signSize / 2 - 1,
point.x + m_signCenter + m_signWidth / 2,
point.y + m_signSize / 2 - 1);
dc.DrawLine(point.x + m_signCenter + m_signWidth / 2,
point.y + m_signSize / 2,
point.x + m_signCenter + m_signWidth / 2,
point.y + m_signSize / 2 - SCALE_PX(5, scale));
}
else
{
// DRAW PRODUCT SIGN
// Vertical lines
dc.DrawLine(point.x + m_signCenter + m_signWidth / 6,
point.y + m_signSize / 2,
point.x + m_signCenter + m_signWidth / 6,
point.y - m_signSize / 2 + SCALE_PX(4, scale));
dc.DrawLine(point.x + m_signCenter - m_signWidth / 6,
point.y + m_signSize / 2,
point.x + m_signCenter - m_signWidth / 6,
point.y - m_signSize / 2 + SCALE_PX(4, scale));
// Horizonral line (double)
dc.DrawLine(point.x + m_signCenter - m_signWidth / 2,
point.y - m_signSize / 2,
point.x + m_signCenter + m_signWidth / 2,
point.y - m_signSize / 2);
dc.DrawLine(point.x + m_signCenter - m_signWidth / 2,
point.y - m_signSize / 2 + 1,
point.x + m_signCenter + m_signWidth / 2,
point.y - m_signSize / 2 + 1);
// Ticks on horizontal line
dc.DrawLine(point.x + m_signCenter - m_signWidth / 2,
point.y - m_signSize / 2,
point.x + m_signCenter - m_signWidth / 2,
point.y - m_signSize / 2 + SCALE_PX(5, scale));
dc.DrawLine(point.x + m_signCenter + m_signWidth / 2,
point.y - m_signSize / 2,
point.x + m_signCenter + m_signWidth / 2,
point.y - m_signSize / 2 + SCALE_PX(5, scale));
}
UnsetPen(parser);
base.x += (2 * m_signCenter + SCALE_PX(4, scale));
m_base->Draw(parser, base, fontsize, true);
}
MathCell::Draw(parser, point, fontsize, all);
}
wxString SumCell::ToString(bool all)
{
wxString s;
if (m_sumStyle == SM_SUM)
s = wxT("sum(");
else
s = wxT("product(");
s += m_base->ToString(true);
MathCell* tmp = m_under;
wxString var = tmp->ToString(false);
wxString from;
tmp = tmp->m_next;
if (tmp != NULL)
{
tmp = tmp->m_next;
if (tmp != NULL)
from = tmp->ToString(true);
}
wxString to = m_over->ToString(true);
s += wxT(",") + var + wxT(",") + from;
if (to != wxEmptyString)
s += wxT(",") + to + wxT(")");
else
s = wxT("l") + s + wxT(")"),
s += MathCell::ToString(all);
return s;
}
wxString SumCell::ToTeX(bool all)
{
wxString s;
if (m_sumStyle == SM_SUM)
s = wxT("\\sum");
else
s = wxT("\\prod");
s += wxT("_{") + m_under->ToTeX(true) + wxT("}");
wxString to = m_over->ToTeX(true);
if (to.Length())
s += wxT("^{") + to + wxT("}");
s += m_base->ToTeX(true);
s += MathCell::ToTeX(all);
return s;
}
void SumCell::SelectInner(wxRect& rect, MathCell** first, MathCell** last)
{
*first = NULL;
*last = NULL;
if (m_over->ContainsRect(rect))
m_over->SelectRect(rect, first, last);
else if (m_under->ContainsRect(rect))
m_under->SelectRect(rect, first, last);
else if (m_base->ContainsRect(rect))
m_base->SelectRect(rect, first, last);
if (*first == NULL || *last == NULL)
{
*first = this;
*last = this;
}
}
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