*
* Dependencies: Xlib, XForms
*
- * Copyright: (c) 1996, Alejandro Aguilar Sierra
+ * Copyright: 1996, Alejandro Aguilar Sierra
*
* Version: 0.8beta, Mathed & Lyx project.
*
#include FORMS_H_LOCATION
#include "math_cursor.h"
#include "math_parser.h"
+#include "debug.h"
+#include "lyxfont.h"
+#include "Painter.h"
-extern void mathed_set_font(short type, int style);
-extern int mathed_char_width(short type, int style, byte c);
-extern int mathed_string_width(short type, int style, byte const* s, int ls);
-extern int mathed_string_height(short, int, byte const*, int, int&, int&);
-extern int mathed_char_height(short, int, byte, int&, int&);
-
-GC canvasGC=0, mathGC=0, mathLineGC=0, latexGC=0, cursorGC=0, mathFrameGC=0;
-
-
-long unsigned int MathedInset::pm;
-
-void
-MathSpaceInset::Draw(int x, int y)
-{
-
-// XPoint p[4] = {{++x, y-3}, {x, y}, {x+width-2, y}, {x+width-2, y-3}};
-
-// Sadly, HP-UX CC can't handle that kind of initialization.
-
- XPoint p[4];
- p[0].x = ++x; p[0].y = y-3;
- p[1].x = x; p[1].y = y;
- p[2].x = x+width-2; p[2].y = y;
- p[3].x = x+width-2; p[3].y = y-3;
-
- XDrawLines(fl_display,pm,(space) ? latexGC: mathGC,p,4,CoordModeOrigin);
- XFlush(fl_display);
-}
+using std::endl;
-void
-MathParInset::Draw(int x, int y)
-{
- byte cx, cxp=0;
- int xp=0, ls;
- int asc=df_asc, des=0;
- bool limits = false;
-
- xo = x; yo = y;
- if (!array || array->Empty()) {
- mathed_set_font(LM_TC_VAR, 1);
- if (array) {
- MathedXIter data(this);
- data.GetPos(x, y);
- }
- XDrawRectangle(fl_display,pm,mathLineGC,x,y-df_asc, df_width, df_asc);
- XFlush(fl_display);
- return;
- }
- MathedXIter data(this);
- data.GoBegin();
- while (data.OK()) {
- data.GetPos(x, y);
- cx = data.GetChar();
- if (cx >= ' ') {
- byte *s = data.GetString(ls);
- drawStr(data.FCode(), size, x, y, s, ls);
- mathed_char_height(data.FCode(), size, s[ls-1], asc, des);
- limits = false;
- } else {
- if (cx==0) break;
- if (MathIsInset(cx)) {
- int yy = y;
- MathedInset *p = data.GetInset();
- if (cx==LM_TC_UP) {
- if (limits) {
- x -= (xp>p->Width()) ? p->Width()+(xp-p->Width())/2: xp;
- yy -= (asc + p->Descent()+4);
- } else
- yy -= (p->Descent()>asc) ? p->Descent()+4: asc;
- } else
- if (cx==LM_TC_DOWN) {
- if (limits) {
- x -= (xp>p->Width()) ? p->Width()+(xp-p->Width())/2: xp;
- yy += des + p->Ascent() + 2;
- } else
- yy += des + p->Ascent()/2;
- } else {
- asc = p->Ascent();
- des = p->Descent();
- }
- p->Draw(x, yy);
- if (cx!=LM_TC_UP && cx!=LM_TC_DOWN) {
- limits = p->GetLimits();
- if (limits) xp = p->Width();
- }
- data.Next();
- } else
- if (cx==LM_TC_TAB) {
- if ((cxp==cx || cxp==LM_TC_CR || data.IsFirst())) { // && objtype==L
- XDrawRectangle(fl_display,pm,mathLineGC,
- x,y-df_asc, df_width, df_asc);
- }
-
- XFlush(fl_display);
- data.Next();
- limits = false;
- } else
- if (cx==LM_TC_CR) {
- if (cxp==LM_TC_TAB || cxp==LM_TC_CR || data.IsFirst()) { // && objtype==LM_OT_MATRIX) {
- XDrawRectangle(fl_display,pm,mathLineGC,x,y-df_asc, df_width, df_asc);
- }
- data.Next();
- limits = false;
- }
- else {
- fprintf(stderr, "GMathed Error: Unrecognized code[%d]\n", cx);
- break;
- }
- }
- cxp = cx;
- }
- if (cxp==LM_TC_TAB || cxp==LM_TC_CR) { // && objtype==LM_OT_MATRIX) {
- data.GetPos(x, y);
- XDrawRectangle(fl_display,pm,mathLineGC,x,y-df_asc, df_width, df_asc);
- XFlush(fl_display);
- }
-}
-
-
-void
-MathParInset::Metrics()
-{
- byte cx, cxp=0, *s;
- int ls;
- int asc=df_asc, des=0;
- int tb = 0, tab=0;
-
- bool limits = false;
-
- ascent = df_asc;//mathed_char_height(LM_TC_VAR, size, 'I', asc, des);
- width = df_width;
- descent = 0;
- if (!array) return;
- if (array->Empty()) return;
-
- ascent = 0;
- MathedXIter data(this);
- data.GoBegin();
- while (data.OK()) {
- cx = data.GetChar();
- if (cx >= ' ') {
- s = data.GetString(ls);
- mathed_string_height(data.FCode(), size, s, ls, asc, des);
- if (asc > ascent) ascent = asc;
- if (des > descent) descent = des;
- limits = false;
- } else
- if (MathIsInset(cx)) {
- MathedInset *p = data.GetInset();
- p->SetStyle(size);
- p->Metrics();
- if (cx==LM_TC_UP) {
- asc += (limits) ? p->Height()+4: p->Ascent() +
- ((p->Descent()>asc) ? p->Descent()-asc+4: 0);
- } else
- if (cx==LM_TC_DOWN) {
- des += ((limits) ? p->Height()+4: p->Height()-p->Ascent()/2);
- } else {
- asc = p->Ascent();
- des = p->Descent();
- }
- if (asc > ascent) ascent = asc;
- if (des > descent) descent = des;
- if (cx!=LM_TC_UP && cx!=LM_TC_DOWN)
- limits = p->GetLimits();
- data.Next();
- } else
- if (cx==LM_TC_TAB) {
- int x, y;
- data.GetIncPos(x, y);
- if (data.IsFirst() || cxp==LM_TC_TAB || cxp==LM_TC_CR) {
- if (ascent<df_asc) ascent = df_asc;
- tb = x;
- }
- data.setTab(x-tb, tab);
- tb = x;
- tab++;
- limits = false;
- data.Next();
- } else
- if (cx==LM_TC_CR) {
- if (tb>0) {
- int x, y;
- data.GetIncPos(x, y);
- if (data.IsFirst() || cxp==LM_TC_TAB || cxp==LM_TC_CR) {
- if (ascent<df_asc) ascent = df_asc;
- tb = x;
- }
- data.setTab(x-tb, tab);
- } else //if (GetColumns()==1)
- {
- int x, y;
- data.GetIncPos(x, y);
- data.setTab(x, tab);
- if (ascent<df_asc) ascent = df_asc;
- }
- tb=tab=0;
- data.subMetrics(ascent, descent);
- ascent = df_asc;
- descent = 0;
- data.Next();
- }
- else {
- fprintf(stderr, "Mathed Error: Unrecognized code[%d]\n", cx);
- break;
- }
- cxp = cx;
- }
- data.GetIncPos(width, ls);
-
- // No matter how simple is a matrix, it is NOT a subparagraph
- if (isMatrix()) {
- if (cxp==LM_TC_TAB) {
- if (ascent<df_asc) ascent = df_asc;
- data.setTab(0, tab);
- } else {
- data.setTab(width-tb, tab);
- }
- }
-
- data.subMetrics(ascent, descent);
-}
-
-
-void
-MathSqrtInset::Draw(int x, int y)
-{
- MathParInset::Draw(x+hmax+2, y);
- int h=ascent, d=descent, h2=Height()/2, w2 = (Height()>4*hmax)?hmax:hmax/2;
- XPoint p[4];
- p[0].x = x + hmax + wbody, p[0].y = y-h;
- p[1].x = x+hmax, p[1].y = y-h;
- p[2].x = x+w2, p[2].y = y+d;
- p[3].x = x, p[3].y = y+d-h2;
- XDrawLines(fl_display, pm, mathLineGC,p, 4, CoordModeOrigin);
- XFlush(fl_display);
-}
-
-void
-MathSqrtInset::Metrics()
-{
- MathParInset::Metrics();
- ascent += 4;
- descent += 2;
- int a, b;
- hmax = mathed_char_height(LM_TC_VAR, size, 'I',a, b);
- if (hmax<10) hmax = 10;
- wbody = width + 4;
- width += hmax + 4;
-}
-
-void
-MathFracInset::Draw(int x, int y)
-{
- short idxp = idx;
- short sizex = size;
-
- idx = 0;
- if (size==LM_ST_DISPLAY) size++;
- MathParInset::Draw(x+(width-w0)/2, y - des0);
- den->Draw(x+(width-w1)/2, y + den->Ascent() + 2 - dh);
- size = sizex;
- if (objtype==LM_OT_FRAC)
- XDrawLine(fl_display, pm, mathLineGC, x+2, y-dh, x+width-4, y - dh);
- XFlush(fl_display);
- idx = idxp;
-}
+extern LyXFont const mathed_get_font(short type, int size);
+extern int mathed_char_width(short type, int style, byte c);
+extern int mathed_string_width(short type, int style, string const &);
+extern int mathed_string_height(short, int, string const &, int &, int &);
+extern int mathed_char_height(short, int, byte, int &, int &);
-void
-MathFracInset::Metrics()
-{
- if (!dh) {
- int a, b;
- dh = mathed_char_height(LM_TC_CONST, size, 'I', a, b)/2;
- }
- short idxp = idx;
- short sizex = size;
- idx = 0;
- if (size==LM_ST_DISPLAY) size++;
- MathParInset::Metrics();
- size = sizex;
- w0 = width;
- int as = Height() + 2 + dh;
- des0 = Descent() + 2 + dh;
- den->Metrics();
- w1 = den->Width();
- width = ((w0 > w1) ? w0: w1) + 12;
- ascent = as;
- descent = den->Height()+ 2 - dh;
- idx = idxp;
-}
-void
-MathBigopInset::Draw(int x, int y)
-{
- int ls;
- char c;
- char const *s;
- short t;
-
- if (sym<256 || sym==LM_oint) {
- ls = 1;
- c = (sym==LM_oint) ? LM_int: sym;
- s = &c;
- t = LM_TC_BSYM;
- } else {
- s = name;
- ls = strlen(name);
- t = LM_TC_TEXTRM;
- }
- mathed_set_font(t, size);
- if (sym==LM_oint) {
- XDrawArc(fl_display, pm, mathLineGC, x,y-5*width/4,width,width,0,23040);
- XFlush(fl_display);
- x++;
- }
- XDrawString(fl_display, pm, mathGC, x, y, s, ls);
- XFlush(fl_display);
-}
-void
-MathBigopInset::Metrics()
-{
- int ls;
- char c;
- char const *s;
- short t;
- if (sym<256 || sym==LM_oint) {
- ls = 1;
- c = (sym==LM_oint) ? LM_int: sym;
- s = &c;
- t = LM_TC_BSYM;
- } else {
- s = name;
- ls = strlen(name);
- t = LM_TC_TEXTRM;
- }
- mathed_set_font(t, size);
- mathed_string_height(t, size, (unsigned char const *)s, ls, ascent, descent);
- width = mathed_string_width(t, size, (unsigned char const *)s, ls);
- if (sym==LM_oint) width += 2;
-}
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