private void BeforePrepare()
{
Control control = panelFormula;
performer = new FormulaEditor.FormulaEditorPerformer(panelFormula, null);
Hashtable table = new Hashtable();
string[,] el = new string[, ] {
{ "=", "=" }, { "&", "AND" }, { "\u2216", "AND" }, { "\u2217", "OR" }, { "|", "OR" }, { "\u8835", "=>" }, { "l", "LIKE" }, { "p", "=>" },
{ "¬", "NOT" }, { "(", "(" }, { ".", "." }, { ":", ":" }, { "?", "?" }, { "<", "<" }, { ">", ">" }, { "+", "+" },
{ "-", "-" }, { "*", "*" }, { "=", "=" }, { "/", "/" }, { "﹪", "%" }, { "A", "atan2" }, { "'", "d/dt" }
};
for (int i = 0; i < el.GetLength(0); i++)
{
table[el[i, 0]] = el[i, 1];
}
MathFormulaDrawable formula = new MathFormulaDrawable(new MathFormula((byte)0, sizes), DrawableConverter.Object);
Color[] cols = new Color[] { Color.FromArgb(216, 203, 187), Color.Black };
performer.SetColors(cols[0], cols[1]);
Graphics g = Graphics.FromHwnd(control.Handle);
SimpleSymbolDrawable.Prepare(sizes, g);
BracketsSymbolDrawable.Prepare(sizes, g);
AbsSymbolDrawable.Prepare(sizes, g);
}
/// <summary>
/// Calculates relative rectangle with its children
/// </summary>
public static void CalculateFullRelativeRectangle(IDrawableSymbol symbol)
{
SimpleSymbolDrawable.CalculateFullRelativeRectangle(symbol);
//SimpleSymbolDrawable.C
symbol.CalculateRelativeRectangle();
if (symbol is RootSymbol | symbol is FractionSymbol | symbol is BinaryFunctionSymbol)
{
return;
}
if (!(symbol is BracketsSymbolDrawable))
{
return;
}
BracketsSymbolDrawable sym = symbol as BracketsSymbolDrawable;
Rectangle rr = symbol.PureDrawable.RelativeRectangle;
int w = rr.Width;
int up = rr.Y;
MathSymbol ms = symbol as MathSymbol;
MathFormulaDrawable df = ms[0] as MathFormulaDrawable;
Rectangle r1 = df.FullRelativeRectangle;
Rectangle r2 = new Rectangle();
if (ms.Children != null)
{
if (ms.Count > 1)
{
if (ms[1] != null)
{
if (!ms[1].IsEmpty)
{
MathFormulaDrawable dr = ms[1] as MathFormulaDrawable;
r2 = dr.FullRelativeRectangle;
}
}
}
}
sym.h = (int)((double)sym.down / Math.Sin(40.0 * 3.1415926 / 180.0));
sym.warc = (int)((double)sym.h * (1 - Math.Cos(40.0 * 3.1415926 / 180.0)));
int wpow = 0, hpow = 0;
if (sym.Count > 1)
{
sym.h = (int)((double)sym.down / Math.Sin(40.0 * 3.1415926 / 180.0));
sym.warc = (int)((double)sym.h * (1 - Math.Cos(40.0 * 3.1415926 / 180.0)));
if (ms.Count > 1)
{
wpow = r2.Width;
hpow = -r2.Y;
}
}
PureDrawableSymbol pDrawable = symbol.PureDrawable;
pDrawable.FullRelativeRectangleX = 0;
pDrawable.FullRelativeRectangleY = -sym.down - hpow;
pDrawable.FullRelativeRectangleWidth = r1.Width + 2 * sym.warc + 4 + wpow;
pDrawable.FullRelativeRectangleHeight = 2 * sym.down + sym.hpow;
}
/// <summary>
/// Calculates its and its children positions
/// </summary>
public static void CalculatePositions(IDrawableSymbol symbol)
{
SimpleSymbolDrawable.CalculatePositions(symbol);
PureDrawableSymbol pDrawable = symbol.PureDrawable;
pDrawable.InsertedRectX = pDrawable.Rectangle.X;
pDrawable.InsertedRectY = pDrawable.Rectangle.Y;
pDrawable.InsertedRectHeight = pDrawable.Rectangle.Height;
pDrawable.InsertedRectWidth = pDrawable.WidthInsert;
pDrawable.InsertedRectX = pDrawable.InsertedRect.X - pDrawable.WidthInsert / 2;
}
/// <summary>
/// Sets location on toolbar
/// </summary>
/// <param name="x">the x position</param>
/// <param name="y">the y position</param>
/*public void SetLocationOnTable(int x, int y)
* {
* pDrawable.RectForShow.Location = new Point(x, y);
* }*/
public void CalculatePositions()
{
SimpleSymbolDrawable.CalculatePositions(this);
IDrawableSymbol ds = this;
PureDrawableSymbol pDrawable = ds.PureDrawable;
pDrawable.InsertedRectX = pDrawable.Rectangle.X;
pDrawable.InsertedRectY = pDrawable.Rectangle.Y;
pDrawable.InsertedRectHeight = pDrawable.Rectangle.Height;
pDrawable.InsertedRectWidth = pDrawable.WidthInsert;
pDrawable.InsertedRectX = pDrawable.InsertedRect.X - pDrawable.WidthInsert / 2;
}
/// <summary>
/// Draws itself
/// </summary>
/// <param name="g">The graphics to draw</param>
public void DrawSelf(Graphics g)
{
if ((symbol != '\u2216') & (symbol != '\u2217') & (symbol != '\u8835')
& (symbol != '\u2295') & (symbol != '\u2297') | MathFormula.Resources.ContainsKey(symbol + ""))
{
SimpleSymbolDrawable.DrawSelf(this, g);
return;
}
int x = pDrawable.Position.X;
int y = pDrawable.Position.Y;
Rectangle r = pDrawable.FullRelativeRectangle;
int h = r.Height;
int w = r.Width;
DrawHelp(g, x, y, w, h, symbol);
}
/// <summary>
/// Creates image from formula
/// </summary>
/// <param name="formula">Formula</param>
/// <returns>Image</returns>
public static Image CreateImage(string formula)
{
Image im = new Bitmap(10, 10);
Graphics g = Graphics.FromImage(im);
SimpleSymbolDrawable.Prepare(new int[] { 8, 6, 5, 4 }, g);
MathFormulaDrawable f = new MathFormulaDrawable(MathFormula.FromString(new int[] { 8, 6, 5, 4 }, formula), DrawableConverter.Object);
f.CalculateFullRelativeRectangle();
Rectangle r = f.FullRelativeRectangle;
Point p = new Point(10, -r.Y);
f.Position = p;
f.CalculatePositions();
im = new Bitmap(r.Width + 20, r.Height);
Brush brush = new SolidBrush(Color.White);
g = Graphics.FromImage(im);
g.FillRectangle(brush, 0, 0, im.Width, im.Height);
f.Draw(g);
SimpleSymbolDrawable.Prepare(MathSymbolFactory.Sizes, g);
g.Dispose();
return(im);
}
public override void SetToFormula(MathFormula formula)
{
sizes = formula.Sizes;
level = formula.Level;
SimpleSymbolDrawable.SetToFormula(this, formula);
}
public void CalculatePositions()
{
SimpleSymbolDrawable.CalculatePositions(this);
}
public void Prepare(FormulaEditorPerformer performer)
{
SimpleSymbolDrawable.Prepare(this, performer);
}
/// <summary>
/// Draws itself on component
/// </summary>
/// <param name="g">The graphics to draw</param>
/// <param name="brush">The drawing brush</param>
/// <param name="pen">The drawing pen</param>
public static void DrawOnComponent(IDrawableSymbol sym, Graphics g, Brush brush, Pen pen)
{
MathSymbol ms = sym as MathSymbol;
char ch = ms.Symbol;
if ((ch != '\u2216') & (ch != '\u2217') & (ch != '\u8835') & (ch != '\u2295') & (ch != '\u2297')
| MathFormula.Resources.ContainsKey(ms.Symbol + ""))
{
SimpleSymbolDrawable.DrawOnComponent(sym, g, brush, pen);
return;
}
PureDrawableSymbol pDrawable = sym.PureDrawable;
int shift = 8;
string ss = ms.String;
if (ss == null)
{
ss = "" + ch;
}
if (ss.Length == 0)
{
ss += ch;
}
int w = (int)g.MeasureString(ss, BracketsSymbolDrawable.FontB).Width;
int h = pDrawable.RectForShow.Height;
int s = (w < h) ? w : h;
s = (int)(0.6 * (float)s);
int x = pDrawable.RectForShow.X + w / 2;
int y = pDrawable.RectForShow.Y + h / 2;
if (ch == '\u2216')
{
g.DrawLine(PureDrawableSymbol.WidePen, pDrawable.RectForShow.X + shift, pDrawable.RectForShow.Y + pDrawable.RectForShow.Height - shift,
pDrawable.RectForShow.X + pDrawable.RectForShow.Width / 2, pDrawable.RectForShow.Y + shift);
g.DrawLine(PureDrawableSymbol.WidePen, pDrawable.RectForShow.X + pDrawable.RectForShow.Width / 2, pDrawable.RectForShow.Y + shift,
pDrawable.RectForShow.X + pDrawable.RectForShow.Width - shift, pDrawable.RectForShow.Y + pDrawable.RectForShow.Height - shift);
}
else if (ch == '\u2217')
{
g.DrawLine(PureDrawableSymbol.WidePen, pDrawable.RectForShow.X + shift, pDrawable.RectForShow.Y + shift,
pDrawable.RectForShow.X + pDrawable.RectForShow.Width / 2, pDrawable.RectForShow.Y + pDrawable.RectForShow.Height - shift);
g.DrawLine(PureDrawableSymbol.WidePen, pDrawable.RectForShow.X + pDrawable.RectForShow.Width / 2, pDrawable.RectForShow.Y + pDrawable.RectForShow.Height - shift,
pDrawable.RectForShow.X + pDrawable.RectForShow.Width - shift, pDrawable.RectForShow.Y + shift);
}
else if (ch == '\u8835')
{
g.DrawLine(PureDrawableSymbol.WidePen, pDrawable.RectForShow.X + shift, pDrawable.RectForShow.Y + shift,
pDrawable.RectForShow.X + pDrawable.RectForShow.Width / 2, pDrawable.RectForShow.Y + pDrawable.RectForShow.Height - shift);
g.DrawLine(PureDrawableSymbol.WidePen, pDrawable.RectForShow.X + pDrawable.RectForShow.Width / 2, pDrawable.RectForShow.Y + pDrawable.RectForShow.Height - shift,
pDrawable.RectForShow.X + pDrawable.RectForShow.Width - shift, pDrawable.RectForShow.Y + shift);
}
else if (ch == '\u2295')
{
DrawCircledPlus(g, PureDrawableSymbol.LinePen, x, y, s);
}
else if (ch == '\u2297')
{
DrawCircledProduct(g, PureDrawableSymbol.LinePen, x, y, s);
}
}
void IDrawableSymbol.CalculatePositions()
{
SimpleSymbolDrawable.CalculatePositions(this);
}
/// <summary>
/// Preparation
/// </summary>
/// <param name="sx">Variable symbols</param>
/// <param name="n">Level</param>
/// <param name="sSubscript">Subscripted symbols</param>
/// <param name="symbols">Text symbols</param>
public void Prepare(string sx, int n, string[,] sSubscript, string[] symbols)
{
string[] all = symbols;
Hashtable table = new Hashtable();
string[,] el = new string[, ] {
{ "=", "=" }, { "&", "AND" }, { "\u2216", "AND" }, { "\u2217", "OR" }, { "|", "OR" }, { "\u8835", "=>" }, { "l", "LIKE" }, { "p", "=>" },
{ "¬", "NOT" }, { "(", "(" }, { ".", "." }, { ":", ":" }, { "?", "?" }, { "<", "<" }, { ">", ">" }, { "+", "+" },
{ "-", "-" }, { "*", "*" }, { "/", "/" }, { "﹪", "%" }, { "=", "=" }, { "A", "atan2" }, { "'", "d/dt" }
};
for (int i = 0; i < el.GetLength(0); i++)
{
table[el[i, 0]] = el[i, 1];
}
// MathFormula.Resources = table;
int[] sizes = MathSymbolFactory.Sizes;
int sub = (sSubscript == null) ? 0 : sSubscript.GetLength(0);
MathFormulaDrawable formula = new MathFormulaDrawable(new MathFormula((byte)0, sizes), DrawableConverter.Object);
Control control = this;
performer = new FormulaEditor.FormulaEditorPerformer(control, formula);
Color[] cols = new Color[] { Color.FromArgb(216, 203, 187), Color.Black };
performer.SetColors(cols[0], cols[1]);
Graphics g = Graphics.FromHwnd(control.Handle);
SimpleSymbolDrawable.Prepare(sizes, g);
BracketsSymbolDrawable.Prepare(sizes, g);
AbsSymbolDrawable.Prepare(sizes, g);
if (all != null)
{
foreach (string str in all)
{
foreach (char c in str)
{
performer.Add(new SimpleSymbolDrawable(
new SimpleSymbol(c, 0x0, false, false)));
}
}
}
string ss = sx;
for (int i = 0; i < sub; i++)
{
performer.Add(new SubscriptedSymbolDrawable(new SubscriptedSymbol(sSubscript[i, 0], sSubscript[i, 1])));
}
for (int i = 0; i < ss.Length; i++)
{
performer.Add(new SimpleSymbolDrawable(new SimpleSymbol(ss[i])));
}
string elem = "scletqabjkfgw'\u2211\u03B4\u0442";
for (int i = 0; i < elem.Length; i++)
{
performer.Add(new SimpleSymbolDrawable(new SimpleSymbol(elem[i], false, (byte)4)));
}
string integerSym = "ABCDEFGH";
performer.Add(new BinaryFunctionSymbolDrawable(new BinaryFunctionSymbol('A', "atan2")));
for (int i = 0; i < integerSym.Length; i++)
{
char c = integerSym[i];
performer.Add(new SimpleSymbolDrawable(new SimpleSymbol(c, (byte)4, false, ElementaryIntegerOperation.GetString(c))));
}
string numbers = "x0123456789ABCDEF";
for (int i = 0; i < numbers.Length; i++)
{
performer.Add(new SimpleSymbolDrawable(new SimpleSymbol(numbers[i], false, (byte)5)));
}
string binary = ".+-*×=><\u2264\u2265\u2260?:&|^\u2266\u2267\u2216\u2217\u8835l\u2270";
//string[,] el = new string[,] {{"\u2216", "AND"}, {"\u2217", "OR"}};
//string binary = ".+-*=><?:&|^\u2217l";
for (int i = 0; i < binary.Length; i++)
{
performer.Add(new BinarySymbolDrawable(new BinarySymbol(binary[i])));
}
string unary = "¬~";
for (int i = 0; i < unary.Length; i++)
{
performer.Add(new SimpleSymbolDrawable(new SimpleSymbol(unary[i], false, (byte)4)));
}
performer.Add(new BracketsSymbolDrawable(new BracketsSymbol()));
performer.Add(new AbsSymbolDrawable(new AbsSymbol()));
performer.Add(new RootSymbolDrawable(new RootSymbol()));
performer.Add(new FractionSymbolDrawable(new FractionSymbol()));
performer.Add(new BinarySymbolDrawable(MathSymbol.Bra as BinarySymbol));
performer.Add(new SimpleSymbolDrawable(MathSymbol.Ket as SimpleSymbol));
performer.Add(new SimpleSymbolDrawable(new SimpleSymbol('e')));
performer.Add(new SimpleSymbolDrawable(new SimpleSymbol('%', (byte)FormulaConstants.Variable, true, "\u03c0")));
for (int i = 0; i < n; i++)
{
performer.Add(new SeriesSymbolDrawable(new SeriesSymbol(i)));
}
int x = 10, y = 10;
int bottom = 0;
IDrawableSymbol symbol = null;
int ns = 0;
if (all != null)
{
foreach (string str in all)
{
foreach (char c in str)
{
symbol = performer[ns];
Point p = new Point(x, y);
MathSymbolDrawable.SetComponentPosition(symbol, p);
symbol.PureDrawable.RectForShow = new Rectangle(x, y, symbol.StandardWidth, (int)(1.5 * 20));
x += symbol.PureDrawable.RectForShow.Width;
++ns;
}
bottom = y + symbol.PureDrawable.RectForShow.Height;
y = bottom;
x = 10;
}
}
if (sub != 0)
{
for (int i = ns; i < sub + ns; i++)
{
symbol = performer[i];
Point p = new Point(x, y);
MathSymbolDrawable.SetComponentPosition(symbol, p);
symbol.PureDrawable.RectForShow = new Rectangle(x, y, symbol.StandardWidth, (int)(1.5 * 20));
x += symbol.PureDrawable.RectForShow.Width;
}
bottom = y + symbol.PureDrawable.RectForShow.Height;
y = bottom;
x = 10;
}
for (int i = sub + ns; i < sub + ns + ss.Length; i++)
{
symbol = performer[i];
Point p = new Point(x, y);
MathSymbolDrawable.SetComponentPosition(symbol, p);
symbol.PureDrawable.RectForShow = new Rectangle(x, y, 30, (int)(1.5 * 20));
x += symbol.PureDrawable.RectForShow.Width;
}
bottom = y + symbol.PureDrawable.RectForShow.Height;
y = bottom;
x = 10;
for (int i = ss.Length + ns + sub; i < ss.Length + elem.Length + 2 + sub + ns; i++)
{
symbol = performer[i];
Point p = new Point(x, y);
MathSymbolDrawable.SetComponentPosition(symbol, p);
symbol.PureDrawable.RectForShow = new Rectangle(x, y, symbol.StandardWidth + 10, (int)(1.5 * 20));
x += symbol.PureDrawable.RectForShow.Width;
}
bottom = y + symbol.PureDrawable.RectForShow.Height;
y = bottom;
x = 10;
for (int i = sub + ns + ss.Length + elem.Length + 1; i < sub + ns + ss.Length + elem.Length + integerSym.Length + 1; i++)
{
symbol = performer[i];
Point p = new Point(x, y);
MathSymbolDrawable.SetComponentPosition(symbol, p);
symbol.PureDrawable.RectForShow = new Rectangle(x, y, symbol.StandardWidth + 10, (int)(1.5 * 20));
x += symbol.PureDrawable.RectForShow.Width;
}
bottom = y + symbol.PureDrawable.RectForShow.Height;
y = bottom;
x = 10;
for (int i = sub + ns + ss.Length + elem.Length + integerSym.Length + 1;
i < sub + ns + ss.Length + elem.Length + numbers.Length + integerSym.Length + 2; i++)
{
symbol = performer[i];
Point p = new Point(x, y);
MathSymbolDrawable.SetComponentPosition(symbol, p);
symbol.PureDrawable.RectForShow = new Rectangle(x, y, symbol.StandardWidth + 10, (int)(1.5 * 20));
x += symbol.PureDrawable.RectForShow.Width;
}
bottom = y + symbol.PureDrawable.RectForShow.Height;
y = bottom;
x = 10;
for (int i = sub + ns + ss.Length + elem.Length + integerSym.Length + numbers.Length + 1; i < sub + ns + ss.Length +
elem.Length + numbers.Length + integerSym.Length + binary.Length + unary.Length + 8 + n; i++)
{
symbol = performer[i];
Point p = new Point(x, y);
MathSymbolDrawable.SetComponentPosition(symbol, p);
symbol.PureDrawable.RectForShow = new Rectangle(x, y, symbol.StandardWidth + 10, (int)(1.5 * 20));
x += symbol.PureDrawable.RectForShow.Width;
}
bottom = y + symbol.PureDrawable.RectForShow.Height;
Rectangle r = new Rectangle(80, bottom, 1100, control.Height - bottom - 20);
performer.FormulaRectangle = r;
Image back = new Bitmap(1200, r.Y + r.Height + 10);
g = Graphics.FromImage(back);
g.FillRectangle(new SolidBrush(Color.LightGray), 0, 0, back.Width, back.Height);
g.DrawRectangle(new Pen(Color.Black), 0, 0, back.Width - 1, back.Height - 1);
Font f = new Font("Serif", sizes[0], FontStyle.Bold | FontStyle.Italic);
int delta = 15;
Brush bBrush = new SolidBrush(Color.Black);
g.DrawString("f = ", f, bBrush, 10, r.Y + r.Height / 2 + delta);
g.Dispose();
performer.Prepare(back);
formula = new MathFormulaDrawable(new MathFormula((byte)0, sizes), DrawableConverter.Object);
performer.Formula = formula;
performer.InitEventHandlers();
performer.DrawFormula();
}