Exemplo n.º 1
0
        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);
        }
Exemplo n.º 2
0
        /// <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);
        }
Exemplo n.º 3
0
 public void Prepare(FormulaEditorPerformer performer)
 {
     SimpleSymbolDrawable.Prepare(this, performer);
 }
Exemplo n.º 4
0
        /// <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();
        }