#include "math_defs.h"
#include "math_parser.h"
#include "Painter.h"
-#include "matriz.h"
#include "symbol_def.h"
#include "debug.h"
#include "math_utils.h"
using std::endl;
using std::max;
+///
+/// rotating things
+///
+
+///
+class Matrix {
+public:
+ ///
+ typedef float matriz_data[2][2];
+ ///
+ Matrix();
+ ///
+ void rota(int);
+ ///
+ void escala(float, float);
+ ///
+ void transf(float, float, float &, float &);
+private:
+ ///
+ matriz_data m_;
+ ///
+ void matmat(matriz_data & a);
+ ///
+ static matriz_data const MATIDEN;
+};
+
+
+#define mateq(m1, m2) memcpy(m1, m2, sizeof(matriz_data))
+
+
+Matrix::matriz_data const Matrix::MATIDEN = { {1, 0}, {0, 1}};
+
+
+Matrix::Matrix()
+{
+ mateq(m_, MATIDEN);
+}
+
+
+void Matrix::rota(int code)
+{
+ matriz_data r;
+ mateq(r, MATIDEN);
+ float const cs = (code & 1) ? 0 : (1 - code);
+ float const sn = (code & 1) ? (2 - code) : 0;
+ r[0][0] = cs;
+ r[0][1] = sn;
+ r[1][0] = -r[0][1];
+ r[1][1] = r[0][0];
+ matmat(r);
+}
+
+
+void Matrix::escala(float x, float y)
+{
+ matriz_data s;
+ mateq(s, MATIDEN);
+ s[0][0] = x;
+ s[1][1] = y;
+ matmat(s);
+}
+
+
+void Matrix::matmat(matriz_data & a)
+{
+ matriz_data c;
+ c[0][0] = a[0][0] * m_[0][0] + a[0][1] * m_[1][0];
+ c[1][0] = a[1][0] * m_[0][0] + a[1][1] * m_[1][0];
+ c[0][1] = a[0][0] * m_[0][1] + a[0][1] * m_[1][1];
+ c[1][1] = a[1][0] * m_[0][1] + a[1][1] * m_[1][1];
+ mateq(m_, c);
+}
+
+
+void Matrix::transf(float xp, float yp, float & x, float & y)
+{
+ x = m_[0][0] * xp + m_[0][1] * yp;
+ y = m_[1][0] * xp + m_[1][1] * yp;
+}
+
+
+
+
+
+
+
+
+
extern LyXFont WhichFont(short type, int size);
char const * math_font_name[] = {
};
+struct math_deco_struct {
+ int code;
+ float const * data;
+ int angle;
+};
+
math_deco_struct math_deco_table[] = {
// Decorations
- { LM_widehat, &angle[0], 3 },
- { LM_widetilde, &tilde[0], 0 },
- { LM_underline, &hline[0], 0 },
- { LM_overline, &hline[0], 0 },
- { LM_underbrace, &brace[0], 1 },
- { LM_overbrace, &brace[0], 3 },
- { LM_overleftarrow, &arrow[0], 1 },
- { LM_overightarrow, &arrow[0], 3 },
+ { LM_widehat, &angle[0], 3 },
+ { LM_widetilde, &tilde[0], 0 },
+ { LM_underline, &hline[0], 0 },
+ { LM_overline, &hline[0], 0 },
+ { LM_underbrace, &brace[0], 1 },
+ { LM_overbrace, &brace[0], 3 },
+ { LM_overleftarrow, &arrow[0], 1 },
+ { LM_overightarrow, &arrow[0], 3 },
// Delimiters
- { '(', &parenth[0], 0 },
- { ')', &parenth[0], 2 },
- { '{', &brace[0], 0 },
- { '}', &brace[0], 2 },
- { '[', &brack[0], 0 },
- { ']', &brack[0], 2 },
- { '|', &vert[0], 0 },
- { '/', &slash[0], 0 },
- { LM_Vert, &Vert[0], 0 },
- { LM_backslash, &slash[0], 1 },
- { LM_langle, &angle[0], 0 },
- { LM_lceil, &corner[0], 0 },
- { LM_lfloor, &corner[0], 1 },
- { LM_rangle, &angle[0], 2 },
- { LM_rceil, &corner[0], 3 },
- { LM_rfloor, &corner[0], 2 },
- { LM_downarrow, &arrow[0], 2 },
- { LM_Downarrow, &Arrow[0], 2 },
- { LM_uparrow, &arrow[0], 0 },
- { LM_Uparrow, &Arrow[0], 0 },
- { LM_updownarrow, &udarrow[0], 0 },
- { LM_Updownarrow, &Udarrow[0], 0 },
+ { '(', &parenth[0], 0 },
+ { ')', &parenth[0], 2 },
+ { '{', &brace[0], 0 },
+ { '}', &brace[0], 2 },
+ { '[', &brack[0], 0 },
+ { ']', &brack[0], 2 },
+ { '|', &vert[0], 0 },
+ { '/', &slash[0], 0 },
+ { LM_Vert, &Vert[0], 0 },
+ { LM_backslash, &slash[0], 1 },
+ { LM_langle, &angle[0], 0 },
+ { LM_lceil, &corner[0], 0 },
+ { LM_lfloor, &corner[0], 1 },
+ { LM_rangle, &angle[0], 2 },
+ { LM_rceil, &corner[0], 3 },
+ { LM_rfloor, &corner[0], 2 },
+ { LM_downarrow, &arrow[0], 2 },
+ { LM_Downarrow, &Arrow[0], 2 },
+ { LM_uparrow, &arrow[0], 0 },
+ { LM_Uparrow, &Arrow[0], 0 },
+ { LM_updownarrow, &udarrow[0], 0 },
+ { LM_Updownarrow, &Udarrow[0], 0 },
// Accents
- { LM_ddot, &hline2[0], 0 },
- { LM_hat, &angle[0], 3 },
- { LM_grave, &slash[0], 1 },
- { LM_acute, &slash[0], 0 },
- { LM_tilde, &tilde[0], 0 },
- { LM_bar, &hline[0], 0 },
- { LM_dot, &hlinesmall[0], 0 },
- { LM_check, &angle[0], 1 },
- { LM_breve, &parenth[0], 1 },
- { LM_vec, &arrow[0], 3 },
- { LM_not, &slash[0], 0 },
-
- // Dots
- { LM_ldots, &hline3[0], 0 },
- { LM_cdots, &hline3[0], 0 },
- { LM_vdots, &hline3[0], 1 },
- { LM_ddots, &dline3[0], 0 }
+ { LM_ddot, &hline2[0], 0 },
+ { LM_hat, &angle[0], 3 },
+ { LM_grave, &slash[0], 1 },
+ { LM_acute, &slash[0], 0 },
+ { LM_tilde, &tilde[0], 0 },
+ { LM_bar, &hline[0], 0 },
+ { LM_dot, &hlinesmall[0], 0 },
+ { LM_check, &angle[0], 1 },
+ { LM_breve, &parenth[0], 1 },
+ { LM_vec, &arrow[0], 3 },
+ { LM_not, &slash[0], 0 },
+
+ // Dots
+ { LM_ldots, &hline3[0], 0 },
+ { LM_cdots, &hline3[0], 0 },
+ { LM_vdots, &hline3[0], 1 },
+ { LM_ddots, &dline3[0], 0 }
};
}
+namespace {
+
+math_deco_struct const * search_deco(int code)
+{
+ math_deco_struct search_elem = { code, 0, 0 };
+
+ math_deco_struct const * res =
+ lower_bound(math_deco_table,
+ math_deco_table + math_deco_table_size,
+ search_elem, math_deco_compare());
+ if (res != math_deco_table + math_deco_table_size &&
+ res->code == code)
+ return res;
+ return 0;
+}
+
+}
+
void mathed_draw_deco(Painter & pain, int x, int y, int w, int h, int code)
{
- Matriz mt;
- Matriz sqmt;
+ Matrix mt;
+ Matrix sqmt;
float xx;
float yy;
float x2;
float y2;
int i = 0;
-#if USE_EXCEPTIONS
- math_deco_struct mds;
- try {
- mds = search_deco(code);
- }
- catch (deco_not_found) {
- // Should this ever happen?
- lyxerr << "Deco was not found. Programming error?" << endl;
- return;
- }
-
- int const r = mds.angle;
- float const * d = mds.data;
-
- if (h > 70 && (mds.code == int('(')
- || mds.code == int(')')))
- d = parenthHigh;
-#else
math_deco_struct const * mds = search_deco(code);
if (!mds) {
// Should this ever happen?
return;
}
-
int const r = mds->angle;
float const * d = mds->data;
- if (h > 70 && (mds->code == int('(')
- || mds->code == int(')')))
+ if (h > 70 && (mds->code == int('(') || mds->code == int(')')))
d = parenthHigh;
-#endif
mt.rota(r);
mt.escala(w, h);
}
-math_deco_struct const * search_deco(int code)
-{
- math_deco_struct search_elem = { code, 0, 0 };
-
- math_deco_struct const * res =
- lower_bound(math_deco_table,
- math_deco_table + math_deco_table_size,
- search_elem, math_deco_compare());
- if (res != math_deco_table + math_deco_table_size &&
- res->code == code)
- return res;
- return 0;
-}
-
bool MathIsInset(short x)
{
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