///
/// 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 "ParenCell.h"
#include "TextCell.h"
#if defined __WXMSW__
#define PAREN_LEFT_TOP "\xE6"
#define PAREN_LEFT_BOTTOM "\xE8"
#define PAREN_RIGHT_TOP "\xF6"
#define PAREN_RIGHT_BOTTOM "\xF8"
#define PAREN_LEFT_EXTEND "\xE7"
#define PAREN_RIGHT_EXTEND "\xF7"
#define PAREN_FONT_SIZE 12
#elif (wxUSE_UNICODE && WXM_UNICODE_GLYPHS)
#define PAREN_LEFT_TOP "\x239B"
#define PAREN_LEFT_BOTTOM "\x239D"
#define PAREN_RIGHT_TOP "\x239E"
#define PAREN_RIGHT_BOTTOM "\x23A0"
#define PAREN_LEFT_EXTEND "\x239C"
#define PAREN_RIGHT_EXTEND "\x239F"
#define PAREN_FONT_SIZE fontsize
#endif
ParenCell::ParenCell() : MathCell()
{
m_innerCell = NULL;
m_print = true;
m_open = new TextCell(wxT("("));
m_close = new TextCell(wxT(")"));
}
ParenCell::~ParenCell()
{
if (m_innerCell != NULL)
delete m_innerCell;
if (m_next != NULL)
delete m_next;
delete m_open;
delete m_close;
}
MathCell* ParenCell::Copy(bool all)
{
ParenCell *tmp = new ParenCell;
CopyData(this, tmp);
tmp->SetInner(m_innerCell->Copy(true), m_type);
if (all && m_next != NULL)
tmp->AppendCell(m_next->Copy(all));
return tmp;
}
void ParenCell::Destroy()
{
if (m_innerCell != NULL)
delete m_innerCell;
m_innerCell = NULL;
m_next = NULL;
}
void ParenCell::SetInner(MathCell *inner, int type)
{
if (inner == NULL)
return ;
if (m_innerCell != NULL)
delete m_innerCell;
m_innerCell = inner;
m_type = type;
m_open->m_nextToDraw = m_innerCell;
m_open->m_previousToDraw = this;
while (inner->m_next != NULL)
inner = inner->m_next;
m_last1 = inner;
}
void ParenCell::RecalculateWidths(CellParser& parser, int fontsize, bool all)
{
double scale = parser.GetScale();
if (m_innerCell == NULL)
m_innerCell = new TextCell;
m_innerCell->RecalculateWidths(parser, fontsize, true);
#if defined __WXMSW__ || (wxUSE_UNICODE && WXM_UNICODE_GLYPHS)
wxDC& dc = parser.GetDC();
int fontsize1 = (int) ((PAREN_FONT_SIZE * scale + 0.5));
dc.SetFont(wxFont(fontsize1, wxMODERN,
parser.IsItalic(TS_NORMAL_TEXT),
parser.IsBold(TS_NORMAL_TEXT),
parser.IsUnderlined(TS_NORMAL_TEXT),
parser.GetSymbolFontName()));
dc.GetTextExtent(wxT(PAREN_LEFT_TOP), &m_charWidth, &m_charHeight);
m_width = m_innerCell->GetFullWidth(scale) + 2*m_charWidth;
#else
m_width = m_innerCell->GetFullWidth(scale) + SCALE_PX(12, parser.GetScale());
#endif
m_open->RecalculateWidths(parser, fontsize, false);
m_close->RecalculateWidths(parser, fontsize, false);
MathCell::RecalculateWidths(parser, fontsize, all);
}
void ParenCell::RecalculateSize(CellParser& parser, int fontsize, bool all)
{
double scale = parser.GetScale();
m_innerCell->RecalculateSize(parser, fontsize, true);
m_height = m_innerCell->GetMaxHeight() + SCALE_PX(2, scale);
m_center = m_innerCell->GetMaxCenter() + SCALE_PX(1, scale);
#if defined __WXMSW__ || (wxUSE_UNICODE && WXM_UNICODE_GLYPHS)
wxDC& dc = parser.GetDC();
int fontsize1 = (int) ((fontsize * scale + 0.5));
dc.SetFont(wxFont(fontsize1, wxMODERN,
false,
false,
false,
parser.GetFontName()));
dc.GetTextExtent(wxT("("), &m_charWidth1, &m_charHeight1);
#endif
m_open->RecalculateSize(parser, fontsize, false);
m_close->RecalculateSize(parser, fontsize, false);
MathCell::RecalculateSize(parser, fontsize, all);
}
void ParenCell::Draw(CellParser& parser, wxPoint point, int fontsize, bool all)
{
if (DrawThisCell(parser, point))
{
double scale = parser.GetScale();
wxDC& dc = parser.GetDC();
wxPoint in(point);
#if defined __WXMSW__ || (wxUSE_UNICODE && WXM_UNICODE_GLYPHS)
in.x += m_charWidth;
#else
in.x = point.x + SCALE_PX(6, scale);
#endif
m_innerCell->Draw(parser, in, fontsize, true);
#if defined __WXMSW__
int fontsize1 = (int) ((PAREN_FONT_SIZE * scale + 0.5));
if (m_height < (3*m_charHeight)/2)
{
fontsize1 = (int) ((fontsize * scale + 0.5));
dc.SetFont(wxFont(fontsize1, wxMODERN,
false,
false,
false,
parser.GetFontName()));
dc.DrawText(wxT("("),
point.x + m_charWidth - m_charWidth1,
point.y - m_charHeight1 / 2);
dc.DrawText(wxT(")"),
point.x + m_width - m_charWidth,
point.y - m_charHeight1 / 2);
}
else
{
SetForeground(parser);
dc.SetFont(wxFont(fontsize1, wxMODERN,
false,
false,
false,
parser.GetSymbolFontName()));
dc.DrawText(wxT(PAREN_LEFT_TOP),
point.x,
point.y - m_center);
dc.DrawText(wxT(PAREN_LEFT_BOTTOM),
point.x,
point.y + m_height - m_center - m_charHeight);
dc.DrawText(wxT(PAREN_RIGHT_TOP),
point.x + m_width - m_charWidth,
point.y - m_center);
dc.DrawText(wxT(PAREN_RIGHT_BOTTOM),
point.x + m_width - m_charWidth,
point.y + m_height - m_center - m_charHeight);
int top, bottom;
top = point.y - m_center + m_charHeight/2;
bottom = point.y + m_height - m_center - (4*m_charHeight)/3;
if (top <= bottom)
{
while (top < bottom)
{
dc.DrawText(wxT(PAREN_LEFT_EXTEND),
point.x,
top);
dc.DrawText(wxT(PAREN_RIGHT_EXTEND),
point.x + m_width - m_charWidth,
top);
top += (2*m_charHeight)/3;
}
dc.DrawText(wxT(PAREN_LEFT_EXTEND),
point.x,
point.y + m_height - m_center - (3*m_charHeight)/2);
dc.DrawText(wxT(PAREN_RIGHT_EXTEND),
point.x + m_width - m_charWidth,
point.y + m_height - m_center - (3*m_charHeight)/2);
}
}
#elif (wxUSE_UNICODE && WXM_UNICODE_GLYPHS)
int fontsize1 = (int) ((PAREN_FONT_SIZE * scale + 0.5));
if (m_height < (3*m_charHeight)/2)
{
fontsize1 = (int) ((fontsize * scale + 0.5));
dc.SetFont(wxFont(fontsize1, wxMODERN,
false,
false,
false,
parser.GetFontName()));
dc.DrawText(wxT("("),
point.x + m_charWidth - m_charWidth1,
point.y - m_charHeight1 / 2);
dc.DrawText(wxT(")"),
point.x + m_width - m_charWidth,
point.y - m_charHeight1 / 2);
}
else if (m_height < (5*m_charHeight)/2)
{
SetForeground(parser);
dc.SetFont(wxFont(fontsize1, wxMODERN,
false,
false,
false,
parser.GetSymbolFontName()));
dc.DrawText(wxT(PAREN_LEFT_TOP),
point.x,
point.y - MIN(m_center, m_charHeight));
dc.DrawText(wxT(PAREN_LEFT_BOTTOM),
point.x,
point.y - MAX(0, m_charHeight - m_center));
dc.DrawText(wxT(PAREN_RIGHT_TOP),
point.x + m_width - m_charWidth,
point.y - MIN(m_center, m_charHeight));
dc.DrawText(wxT(PAREN_RIGHT_BOTTOM),
point.x + m_width - m_charWidth,
point.y- MAX(0, m_charHeight - m_center));
}
else
{
SetForeground(parser);
dc.SetFont(wxFont(fontsize1, wxMODERN,
false,
false,
false,
parser.GetSymbolFontName()));
dc.DrawText(wxT(PAREN_LEFT_TOP),
point.x,
point.y - m_center);
dc.DrawText(wxT(PAREN_LEFT_BOTTOM),
point.x,
point.y + m_height - m_center - m_charHeight);
dc.DrawText(wxT(PAREN_RIGHT_TOP),
point.x + m_width - m_charWidth,
point.y - m_center);
dc.DrawText(wxT(PAREN_RIGHT_BOTTOM),
point.x + m_width - m_charWidth,
point.y + m_height - m_center - m_charHeight);
int top, bottom;
top = point.y - m_center + (2*m_charHeight)/3;
bottom = point.y + m_height - m_center - (5*m_charHeight)/3;
if (top <= bottom)
{
while (top < bottom)
{
dc.DrawText(wxT(PAREN_LEFT_EXTEND),
point.x,
top);
dc.DrawText(wxT(PAREN_RIGHT_EXTEND),
point.x + m_width - m_charWidth,
top);
top += (2*m_charHeight)/3;
}
dc.DrawText(wxT(PAREN_LEFT_EXTEND),
point.x,
point.y + m_height - m_center - (5*m_charHeight)/3);
dc.DrawText(wxT(PAREN_RIGHT_EXTEND),
point.x + m_width - m_charWidth,
point.y + m_height - m_center - (5*m_charHeight)/3);
}
}
#else
SetPen(parser);
// left
dc.DrawLine(point.x + SCALE_PX(5, scale),
point.y - m_innerCell->GetMaxCenter() + SCALE_PX(1, scale),
point.x + SCALE_PX(2, scale),
point.y - m_innerCell->GetMaxCenter() + SCALE_PX(7, scale));
dc.DrawLine(point.x + SCALE_PX(2, scale),
point.y - m_innerCell->GetMaxCenter() + SCALE_PX(7, scale),
point.x + SCALE_PX(2, scale),
point.y + m_innerCell->GetMaxDrop() - SCALE_PX(7, scale));
dc.DrawLine(point.x + SCALE_PX(2, scale),
point.y + m_innerCell->GetMaxDrop() - SCALE_PX(7, scale),
point.x + SCALE_PX(5, scale),
point.y + m_innerCell->GetMaxDrop() - SCALE_PX(1, scale));
// right
dc.DrawLine(point.x + m_width - SCALE_PX(5, scale) - 1,
point.y - m_innerCell->GetMaxCenter() + SCALE_PX(1, scale),
point.x + m_width - SCALE_PX(2, scale) - 1,
point.y - m_innerCell->GetMaxCenter() + SCALE_PX(7, scale));
dc.DrawLine(point.x + m_width - SCALE_PX(2, scale) - 1,
point.y - m_innerCell->GetMaxCenter() + SCALE_PX(7, scale),
point.x + m_width - SCALE_PX(2, scale) - 1,
point.y + m_innerCell->GetMaxDrop() - SCALE_PX(7, scale));
dc.DrawLine(point.x + m_width - SCALE_PX(2, scale) - 1,
point.y + m_innerCell->GetMaxDrop() - SCALE_PX(7, scale),
point.x + m_width - SCALE_PX(5, scale) - 1,
point.y + m_innerCell->GetMaxDrop() - SCALE_PX(1, scale));
UnsetPen(parser);
#endif
}
MathCell::Draw(parser, point, fontsize, all);
}
wxString ParenCell::ToString(bool all)
{
wxString s;
if (!m_isBroken)
{
if (m_print)
s = wxT("(") + m_innerCell->ToString(true) + wxT(")");
else
s = m_innerCell->ToString(true);
}
s += MathCell::ToString(all);
return s;
}
wxString ParenCell::ToTeX(bool all)
{
wxString s;
if (!m_isBroken)
{
if (m_print)
s = wxT("\\left( ") + m_innerCell->ToTeX(true) + wxT("\\right) ");
else
s = m_innerCell->ToTeX(true);
}
s += MathCell::ToTeX(all);
return s;
}
void ParenCell::SelectInner(wxRect& rect, MathCell **first, MathCell **last)
{
*first = NULL;
*last = NULL;
if (m_innerCell->ContainsRect(rect))
m_innerCell->SelectRect(rect, first, last);
if (*first == NULL || *last == NULL)
{
*first = this;
*last = this;
}
}
bool ParenCell::BreakUp()
{
if (!m_isBroken)
{
m_isBroken = true;
m_open->m_nextToDraw = m_innerCell;
m_innerCell->m_previousToDraw = m_open;
m_last1->m_nextToDraw = m_close;
m_close->m_previousToDraw = m_last1;
m_close->m_nextToDraw = m_nextToDraw;
if (m_nextToDraw != NULL)
m_nextToDraw->m_previousToDraw = m_close;
m_nextToDraw = m_open;
return true;
}
return false;
}
void ParenCell::Unbreak(bool all)
{
if (m_isBroken)
m_innerCell->Unbreak(true);
MathCell::Unbreak(all);
}
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