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https://github.com/ultimatepp/ultimatepp.git
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415 lines
11 KiB
C++
415 lines
11 KiB
C++
//#pragma NO_BLITZ
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#ifdef flagGUI
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#include <CtrlLib/CtrlLib.h>
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#include "Functions4U.h"
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#include "Functions4U_Gui.h"
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Drawing EquationDraw::Text(String text, bool italic, int offsetX, int offsetY, double betw)
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{
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Font fnt;
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int _pos1, _pos2;
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if ((_pos1 = text.Find('_', 0)) >= 0) {
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String sub = text.Right(text.GetCount()-_pos1-1);
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if ((_pos2 = sub.Find('_', 0)) >= 0)
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sub = sub.Left(_pos2) + ',' + sub.Right(sub.GetCount()-_pos2-1);
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return SubSup(text.Left(_pos1), sub, "");
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}
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fnt.Face(Font::ROMAN);
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fnt.Height(400);
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fnt.Italic(italic);
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FontInfo fi = fnt.Info();
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int width = 0;
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WString wtext(text);
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for (int i = 0; i < wtext.GetCount(); ++i)
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width += fi[wtext[i]];
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width += 10;
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width = int(width*betw);
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ImageDraw idw(width, fnt.GetHeight());
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idw.DrawRect(Size(width, fnt.GetHeight()), White);
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idw.DrawText(offsetX, offsetY, text, fnt);
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DrawingDraw dw(width/3, fnt.GetHeight()/3);
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dw.DrawImage(0, 0, width/3, fnt.GetHeight()/3, idw);
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return dw;
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}
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Drawing EquationDraw::SubSup(Drawing &drwText, Drawing &drwSub, Drawing &drwSup)
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{
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Size szText = drwText.GetSize();
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Size szSub = (2/3.)*drwSub.GetSize();
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Size szSup = (2/3.)*drwSup.GetSize();
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int width = szText.cx + max(szSup.cx, szSub.cx);
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int deltay = szSup.cy/2;
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DrawingDraw dw(width, szText.cy + szSup.cy/2 + szSub.cy/2);
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dw.DrawDrawing(0, deltay, szText.cx, szText.cy, drwText);
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dw.DrawDrawing(szText.cx, 0, szSup.cx, szSup.cy, drwSup);
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dw.DrawDrawing(szText.cx, deltay + szText.cy - szSub.cy/2, szSub.cx, szSub.cy, drwSub);
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return dw;
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}
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Drawing EquationDraw::SubSup(String text, String sub, String sup)
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{
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Drawing textdraw = Text(text, true);
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Drawing subdraw = Text(sub, true);
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Drawing supdraw = Text(sup, true);
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return SubSup(textdraw, subdraw, supdraw);
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}
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Drawing EquationDraw::SubSup(Drawing &drwText, String sub, String sup)
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{
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Drawing subdraw = Text(sub, true);
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Drawing supdraw = Text(sup, true);
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return SubSup(drwText, subdraw, supdraw);
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}
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Drawing EquationDraw::SubSupInv(Drawing &drwText, Drawing &drwSub, Drawing &drwSup)
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{
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Size szText = drwText.GetSize();
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Size szSub = (2/3.)*drwSub.GetSize();
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Size szSup = (2/3.)*drwSup.GetSize();
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int width = szText.cx + max(szSup.cx, szSub.cx);
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int deltay = szSup.cy/2;
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DrawingDraw dw(width, szText.cy + szSup.cy/2 + szSub.cy/2);
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dw.DrawDrawing(width-szText.cx, deltay, szText.cx, szText.cy, drwText);
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dw.DrawDrawing(0, 0, szSup.cx, szSup.cy, drwSup);
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dw.DrawDrawing(0, deltay + szText.cy - szSub.cy/2, szSub.cx, szSub.cy, drwSub);
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return dw;
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}
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Drawing EquationDraw::SubSupInv(String text, String sub, String sup)
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{
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Drawing textdraw = Text(text, true);
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Drawing subdraw = Text(sub, true);
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Drawing supdraw = Text(sup, true);
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return SubSupInv(textdraw, subdraw, supdraw);
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}
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Drawing EquationDraw::SubSupInv(Drawing &drwText, String sub, String sup)
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{
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Drawing subdraw = Text(sub, true);
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Drawing supdraw = Text(sup, true);
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return SubSupInv(drwText, subdraw, supdraw);
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}
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Drawing EquationDraw::JoinCenter(Drawing &left, Drawing &right)
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{
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Size szLeft = left.GetSize();
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Size szRight = right.GetSize();
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int width = szLeft.cx + szRight.cx;
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int height = max(szLeft.cy, szRight.cy);
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DrawingDraw dw(width, height);
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dw.DrawDrawing(0, height == szLeft.cy? 0: (height-szLeft.cy)/2, szLeft.cx, szLeft.cy, left);
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dw.DrawDrawing(szLeft.cx, height == szRight.cy? 0: (height-szRight.cy)/2, szRight.cx, szRight.cy, right);
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return dw;
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}
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Drawing EquationDraw::JoinFlex(Drawing &left, double betw1, Drawing &right, double betw2)
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{
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Size szLeft = left.GetSize();
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Size szRight = right.GetSize();
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int width = int(szLeft.cx*betw1 + szRight.cx*betw2);
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int height = max(szLeft.cy, szRight.cy);
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DrawingDraw dw(width, height);
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dw.DrawDrawing(0, 0, szLeft.cx, height, left);
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dw.DrawDrawing(int(szLeft.cx*betw1), 0, szRight.cx, height, right);
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return dw;
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}
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Drawing EquationDraw::NumDenom(Drawing &num, Drawing &denom)
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{
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Size szNum = num.GetSize();
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Size szDenom = denom.GetSize();
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int width = max(szNum.cx, szDenom.cx);
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int height = szNum.cy + szDenom.cy;
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DrawingDraw dw(width, height);
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dw.DrawDrawing(width == szNum.cx? 0: (width-szNum.cx)/2, 0, szNum.cx, szNum.cy, num);
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dw.DrawDrawing(width == szDenom.cx? 0: (width-szDenom.cx)/2, szNum.cy, szDenom.cx, szDenom.cy, denom);
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dw.DrawLine(0, szNum.cy, width, szNum.cy, 1);
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return dw;
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}
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Drawing EquationDraw::Bracket(Drawing &data)
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{
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Drawing pizq = Text("(", true, 0, 0, 1.3);
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Drawing pder = Text(")");
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Drawing parizq = JoinFlex(pizq, 1, data, 1);
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return JoinFlex(parizq, 1, pder, 1);
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}
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Drawing EquationDraw::Sqrt(Drawing &right)
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{
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Drawing left = Text("√");
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Size szLeft = left.GetSize();
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Size szRight = right.GetSize();
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int width = szLeft.cx + szRight.cx;
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int height = max(szLeft.cy, szRight.cy);
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DrawingDraw dw(width, height);
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dw.DrawDrawing(0, 0, szLeft.cx, height, left);
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dw.DrawDrawing(szLeft.cx, 1, szRight.cx, height-1, right);
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dw.DrawLine(szLeft.cx, 0, width-szLeft.cx, 0, 1);
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return dw;
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}
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Drawing EquationDraw::Integral(Drawing &data, Drawing &sub, Drawing &sup)
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{
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Drawing left = Text("∫");
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Drawing right = SubSupInv(data, sub, sup);
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Size szLeft = left.GetSize();
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Size szRight = right.GetSize();
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int sqWidth = szLeft.cx/3-20;
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int width = sqWidth + szRight.cx;
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int height = szRight.cy;
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DrawingDraw dw(width, height);
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dw.DrawDrawing(0, 0, (int)(szLeft.cx*1.5), height, left);
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dw.DrawDrawing(sqWidth, 0, szRight.cx, height, right);
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return dw;
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}
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Drawing EquationDraw::Summat(Drawing &data, Drawing &sub, Drawing &sup)
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{
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Drawing left = Text("∑", true, 0, -20);
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Drawing right = SubSupInv(data, sub, sup);
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Size szLeft = left.GetSize();
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Size szRight = right.GetSize();
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int sqWidth = szLeft.cx/3;
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int width = sqWidth + szRight.cx;
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int height = szRight.cy;
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DrawingDraw dw(width, height);
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dw.DrawDrawing(0, 0, (int)(szLeft.cx*1.1), height, left);
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dw.DrawDrawing(sqWidth, 0, szRight.cx, height, right);
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return dw;
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}
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Drawing EquationDraw::Exp(Drawing &data, Drawing &exp)
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{
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Drawing foo = Text("");
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return SubSup(data, foo, exp);
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}
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Drawing EquationDraw::Function(String function, Drawing &content)
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{
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Drawing fundraw = Text(function);
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Drawing pardraw = Bracket(content);
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return JoinCenter(fundraw, pardraw);
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}
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Drawing EquationDraw::Equal(Drawing &left, Drawing &right)
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{
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Drawing equal = Text(" = ");
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Drawing leftdraw = JoinCenter(left, equal);
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return JoinCenter(leftdraw, right);
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}
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String EquationDraw::ReplaceSymbols(String var)
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{
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for (int i = 0; i < symbols.GetCount(); ++i) {
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String letter = ToLower(symbols.GetKey(i));
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if (var.Find(letter) >= 0)
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var.Replace(letter, symbols[i].Mid(2));
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letter = ToUpper(symbols.GetKey(i));
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if (var.Find(letter) >= 0)
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var.Replace(letter, symbols[i].Mid(0, 2));
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}
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return var;
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}
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Drawing EquationDraw::Term(CParser& p, bool noBracket)
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{
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if(p.Id("integral")) {
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p.PassChar('(');
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Drawing data = Exp(p);
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p.PassChar(',');
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Drawing sub = Exp(p);
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p.PassChar(',');
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Drawing sup = Exp(p);
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p.PassChar(')');
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return EquationDraw::Integral(data, sub, sup);
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}
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if(p.Id("summation")) {
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p.PassChar('(');
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Drawing data = Exp(p);
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p.PassChar(',');
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Drawing sub = Exp(p);
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p.PassChar(',');
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Drawing sup = Exp(p);
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p.PassChar(')');
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return EquationDraw::Summat(data, sub, sup);
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}
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if(p.Id("sqrt")) {
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p.PassChar('(');
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Drawing x = Exp(p);
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p.PassChar(')');
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return EquationDraw::Sqrt(x);
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}
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if(p.Id("cos")) {
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p.PassChar('(');
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Drawing x = Exp(p);
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p.PassChar(')');
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return EquationDraw::Function("cos", x);
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}
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if(p.IsId())
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return EquationDraw::Text(ReplaceSymbols(p.ReadId()));
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if(p.Char('(')) {
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Drawing x = Exp(p);
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p.PassChar(')');
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if (noBracket)
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return x;
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else
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return EquationDraw::Bracket(x);
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}
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return EquationDraw::Text(FormatDouble(p.ReadDouble()));
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}
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Drawing EquationDraw::Mul(CParser& p)
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{
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Drawing x = Term(p);
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for(;;) {
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if(p.Char('*')) {
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Drawing mult = EquationDraw::Text(" ");
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Drawing left = EquationDraw::JoinCenter(x, mult);
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Drawing y = Term(p, false);
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x = EquationDraw::JoinCenter(left, y);
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} else if(p.Char('/')) {
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Drawing y = Term(p, true);
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x = EquationDraw::NumDenom(x, y);
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} else if(p.Char('^')) {
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Drawing y = Term(p, false);
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x = EquationDraw::Exp(x, y);
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} else
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return x;
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}
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}
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Drawing EquationDraw::Exp(CParser& p)
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{
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Drawing x = Mul(p);
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for(;;) {
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if(p.Char('+')) {
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Drawing plus = EquationDraw::Text("+");
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Drawing left = EquationDraw::JoinCenter(x, plus);
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Drawing y = Mul(p);
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x = EquationDraw::JoinCenter(left, y);
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} else if(p.Char('-')) {
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Drawing minus = EquationDraw::Text("-");
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Drawing left = EquationDraw::JoinCenter(x, minus);
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Drawing y = Mul(p);
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x = EquationDraw::JoinCenter(left, y);
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} else if(p.Char('=')) {
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Drawing y = Mul(p);
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x = EquationDraw::Equal(x, y);
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} else
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return x;
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}
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}
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EquationDraw::EquationDraw()
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{
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symbols.GetAdd("alpha") = "Αα";
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symbols.GetAdd("nu") = "Νν";
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symbols.GetAdd("beta") = "Ββ";
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symbols.GetAdd("xi") = "Ξξ";
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symbols.GetAdd("gamma") = "Γγ";
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symbols.GetAdd("omicron") = "Οο";
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symbols.GetAdd("delta") = "Δδ";
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symbols.GetAdd("pi") = "Ππ";
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symbols.GetAdd("epsilon") = "Εε";
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symbols.GetAdd("rho") = "Ρρ";
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symbols.GetAdd("zeta") = "Ζζ";
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symbols.GetAdd("sigma") = "Σσ";
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symbols.GetAdd("eta") = " Ηη";
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symbols.GetAdd("tau") = "Ττ";
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symbols.GetAdd("theta") = "Θθ";
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symbols.GetAdd("upsilon") = "Υυ";
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symbols.GetAdd("iota") = "Ιι";
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symbols.GetAdd("phi") = "Φφ";
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symbols.GetAdd("kappa") = "Κκ";
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symbols.GetAdd("chi") = "Χχ";
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symbols.GetAdd("lambda") = "Λλ";
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symbols.GetAdd("psi") = "Ψψ";
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symbols.GetAdd("mu") = "Μμ";
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symbols.GetAdd("omega") = "Ωω";
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}
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Drawing DrawEquation(String str)
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{
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EquationDraw equation;
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CParser p(str);
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try {
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if(p.IsId()) {
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String id;
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CParser::Pos pos = p.GetPos();
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id = p.ReadId();
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p.SetPos(pos);
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return equation.Exp(p);
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} else
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return equation.Exp(p);
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}
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catch(CParser::Error e) {
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String res;
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res << "ERROR: " << e << '\n';
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return EquationDraw::Text(res);
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}
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}
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QtfRichObject QtfEquation(String str)
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{
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Drawing drw = DrawEquation(str);
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Size sz = drw.GetSize();
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DrawingDraw dw(sz);
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dw.DrawDrawing(0, 0, sz.cx, sz.cy, drw);
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return QtfRichObject(CreateDrawingObject(dw.GetResult(), sz, sz));
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}
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#endif
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