src/frontends/xforms/XPainter.C

   1 /**
   2  * \file XPainter.C
   3  * Copyright 1998-2002 the LyX Team
   4  * Read the file COPYING
   5  *
   6  * \author unknown
   7  * \author John Levon <moz@compsoc.man.ac.uk>
   8  */
   9
  10 #include <config.h>
  11
  12 #ifdef __GNUG__
  13 #pragma implementation
  14 #endif
  15
  16 #include "XPainter.h"
  17 #include "LString.h"
  18 #include "debug.h"
  19 #include "XWorkArea.h"
  20 #include "xfont_metrics.h"
  21 #include "ColorHandler.h"
  22 #include "lyxrc.h"
  23 #include "encoding.h"
  24 #include "language.h"
  25
  26 #include "graphics/GraphicsImage.h"
  27
  28 #include "support/LAssert.h"
  29 #include "support/lstrings.h"
  30
  31 #include <boost/scoped_array.hpp>
  32
  33 #include <cmath>
  34
  35 using std::endl;
  36 using std::max;
  37
  38
  39 XPainter::XPainter(XWorkArea & xwa)
  40         : Painter(), owner_(xwa)
  41 {
  42 }
  43
  44
  45 int XPainter::paperWidth() const
  46 {
  47         return owner_.workWidth();
  48 }
  49
  50
  51 int XPainter::paperHeight() const
  52 {
  53         return owner_.workHeight();
  54 }
  55
  56
  57 Painter & XPainter::point(int x, int y, LColor::color c)
  58 {
  59         XDrawPoint(fl_get_display(), owner_.getPixmap(),
  60                 lyxColorHandler->getGCForeground(c), x, y);
  61         return *this;
  62 }
  63
  64
  65 Painter & XPainter::line(int x1, int y1,
  66         int x2, int y2,
  67         LColor::color col,
  68         line_style ls,
  69         line_width lw)
  70 {
  71         XDrawLine(fl_get_display(), owner_.getPixmap(),
  72                 lyxColorHandler->getGCLinepars(ls, lw, col),
  73                 x1, y1, x2, y2);
  74         return *this;
  75 }
  76
  77
  78 Painter & XPainter::lines(int const * xp, int const * yp,
  79         int np,
  80         LColor::color col,
  81         line_style ls,
  82         line_width lw)
  83 {
  84         boost::scoped_array<XPoint> points(new XPoint[np]);
  85
  86         for (int i = 0; i < np; ++i) {
  87                 points[i].x = xp[i];
  88                 points[i].y = yp[i];
  89         }
  90
  91         XDrawLines(fl_get_display(), owner_.getPixmap(),
  92                 lyxColorHandler->getGCLinepars(ls, lw, col),
  93                 points.get(), np, CoordModeOrigin);
  94
  95         return *this;
  96 }
  97
  98
  99 Painter & XPainter::rectangle(int x, int y,
 100         int w, int h,
 101         LColor::color col,
 102         line_style ls,
 103         line_width lw)
 104 {
 105         XDrawRectangle(fl_get_display(), owner_.getPixmap(),
 106                 lyxColorHandler->getGCLinepars(ls, lw, col),
 107                 x, y, w, h);
 108         return *this;
 109 }
 110
 111
 112 Painter & XPainter::fillRectangle(int x, int y,
 113         int w, int h,
 114         LColor::color col)
 115 {
 116         XFillRectangle(fl_get_display(), owner_.getPixmap(),
 117                 lyxColorHandler->getGCForeground(col), x, y, w, h);
 118         return *this;
 119 }
 120
 121
 122 Painter & XPainter::fillPolygon(int const * xp, int const * yp,
 123         int np, LColor::color col)
 124 {
 125         boost::scoped_array<XPoint> points(new XPoint[np]);
 126
 127         for (int i = 0; i < np; ++i) {
 128                 points[i].x = xp[i];
 129                 points[i].y = yp[i];
 130         }
 131
 132         XFillPolygon(fl_get_display(), owner_.getPixmap(),
 133                 lyxColorHandler->getGCForeground(col), points.get(),
 134                 np, Nonconvex, CoordModeOrigin);
 135
 136         return *this;
 137 }
 138
 139
 140 Painter & XPainter::arc(int x, int y,
 141         unsigned int w, unsigned int h,
 142         int a1, int a2, LColor::color col)
 143 {
 144         XDrawArc(fl_get_display(), owner_.getPixmap(),
 145                 lyxColorHandler->getGCForeground(col),
 146                 x, y, w, h, a1, a2);
 147         return *this;
 148 }
 149
 150
 151 Painter & XPainter::image(int x, int y,
 152         int w, int h,
 153         grfx::Image const & image)
 154 {
 155         XGCValues val;
 156         val.function = GXcopy;
 157         GC gc = XCreateGC(fl_get_display(), owner_.getPixmap(),
 158                 GCFunction, &val);
 159         XCopyArea(fl_get_display(), image.getPixmap(), owner_.getPixmap(),
 160                 gc, 0, 0, w, h, x, y);
 161         XFreeGC(fl_get_display(), gc);
 162         return *this;
 163 }
 164
 165
 166 Painter & XPainter::text(int x, int y,
 167         string const & s, LyXFont const & f)
 168 {
 169         return text(x, y, s.data(), s.length(), f);
 170 }
 171
 172
 173 Painter & XPainter::text(int x, int y,
 174         char c, LyXFont const & f)
 175 {
 176         char s[2] = { c, '\0' };
 177         return text(x, y, s, 1, f);
 178 }
 179
 180
 181 Painter & XPainter::text(int x, int y,
 182         char const * s, size_t ls,
 183         LyXFont const & f)
 184 {
 185         if (lyxrc.font_norm_type == LyXRC::ISO_10646_1) {
 186                 boost::scoped_array<XChar2b> xs(new XChar2b[ls]);
 187                 Encoding const * encoding = f.language()->encoding();
 188                 LyXFont font(f);
 189                 if (f.isSymbolFont()) {
 190 #ifdef USE_UNICODE_FOR_SYMBOLS
 191                         font.setFamily(LyXFont::ROMAN_FAMILY);
 192                         font.setShape(LyXFont::UP_SHAPE);
 193 #endif
 194                         encoding = encodings.symbol_encoding();
 195                 }
 196                 for (size_t i = 0; i < ls; ++i) {
 197                         Uchar c = encoding->ucs(s[i]);
 198                         xs[i].byte1 = c >> 8;
 199                         xs[i].byte2 = c & 0xff;
 200                 }
 201                 text(x , y, xs.get(), ls, font);
 202                 return *this;
 203         }
 204
 205         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 206         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 207                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 208                 XDrawString(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 209         } else {
 210                 LyXFont smallfont(f);
 211                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 212                 int tmpx = x;
 213                 for (size_t i = 0; i < ls; ++i) {
 214                         char const c = uppercase(s[i]);
 215                         if (c != s[i]) {
 216                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 217                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 218                                         tmpx, y, &c, 1);
 219                                 tmpx += xfont_metrics::XTextWidth(smallfont, &c, 1);
 220                         } else {
 221                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 222                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 223                                         tmpx, y, &c, 1);
 224                                 tmpx += xfont_metrics::XTextWidth(f, &c, 1);
 225                         }
 226                 }
 227         }
 228
 229         if (f.underbar() == LyXFont::ON) {
 230                 underline(f, x, y, font_metrics::width(s, ls, f));
 231         }
 232
 233         return *this;
 234 }
 235
 236
 237 Painter & XPainter::text(int x, int y,
 238         XChar2b const * s, size_t ls,
 239         LyXFont const & f)
 240 {
 241         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 242         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 243                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 244                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 245         } else {
 246                 LyXFont smallfont(f);
 247                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 248                 static XChar2b c;
 249                 int tmpx = x;
 250                 for (size_t i = 0; i < ls; ++i) {
 251                         if (s[i].byte1)
 252                                 c = s[i];
 253                         else {
 254                                 c.byte1 = s[i].byte1;
 255                                 c.byte2 = uppercase(s[i].byte2);
 256                         }
 257                         if (c.byte2 != s[i].byte2) {
 258                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 259                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 260                                         tmpx, y, &c, 1);
 261                                 tmpx += xfont_metrics::XTextWidth16(smallfont, &c, 1);
 262                         } else {
 263                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 264                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 265                                         tmpx, y, &c, 1);
 266                                 tmpx += xfont_metrics::XTextWidth16(f, &c, 1);
 267                         }
 268                 }
 269         }
 270
 271         if (f.underbar() == LyXFont::ON) {
 272                 underline(f, x, y, xfont_metrics::width(s, ls, f));
 273         }
 274
 275         return *this;
 276 }