src/frontends/xforms/XPainter.C

   1 /**
   2  * \file XPainter.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author unknown
   7  * \author John Levon
   8  *
   9  * Full author contact details are available in file CREDITS
  10  */
  11
  12 #include <config.h>
  13
  14
  15 #include "XPainter.h"
  16 #include "LString.h"
  17 #include "debug.h"
  18 #include "XWorkArea.h"
  19 #include "xfont_metrics.h"
  20 #include "ColorHandler.h"
  21 #include "lyxrc.h"
  22 #include "encoding.h"
  23 #include "language.h"
  24
  25 #include "xformsImage.h"
  26
  27 #include "support/LAssert.h"
  28 #include "support/lstrings.h"
  29
  30 #include <boost/scoped_array.hpp>
  31
  32 #include <cmath>
  33
  34 using std::endl;
  35 using std::max;
  36
  37
  38 XPainter::XPainter(XWorkArea & xwa)
  39         : Painter(), owner_(xwa)
  40 {
  41 }
  42
  43
  44 int XPainter::paperWidth() const
  45 {
  46         return owner_.workWidth();
  47 }
  48
  49
  50 int XPainter::paperHeight() const
  51 {
  52         return owner_.workHeight();
  53 }
  54
  55
  56 Painter & XPainter::point(int x, int y, LColor::color c)
  57 {
  58         XDrawPoint(fl_get_display(), owner_.getPixmap(),
  59                 lyxColorHandler->getGCForeground(c), x, y);
  60         return *this;
  61 }
  62
  63
  64 Painter & XPainter::line(int x1, int y1,
  65         int x2, int y2,
  66         LColor::color col,
  67         line_style ls,
  68         line_width lw)
  69 {
  70         XDrawLine(fl_get_display(), owner_.getPixmap(),
  71                 lyxColorHandler->getGCLinepars(ls, lw, col),
  72                 x1, y1, x2, y2);
  73         return *this;
  74 }
  75
  76
  77 Painter & XPainter::lines(int const * xp, int const * yp,
  78         int np,
  79         LColor::color col,
  80         line_style ls,
  81         line_width lw)
  82 {
  83         boost::scoped_array<XPoint> points(new XPoint[np]);
  84
  85         for (int i = 0; i < np; ++i) {
  86                 points[i].x = xp[i];
  87                 points[i].y = yp[i];
  88         }
  89
  90         XDrawLines(fl_get_display(), owner_.getPixmap(),
  91                 lyxColorHandler->getGCLinepars(ls, lw, col),
  92                 points.get(), np, CoordModeOrigin);
  93
  94         return *this;
  95 }
  96
  97
  98 Painter & XPainter::rectangle(int x, int y,
  99         int w, int h,
 100         LColor::color col,
 101         line_style ls,
 102         line_width lw)
 103 {
 104         XDrawRectangle(fl_get_display(), owner_.getPixmap(),
 105                 lyxColorHandler->getGCLinepars(ls, lw, col),
 106                 x, y, w, h);
 107         return *this;
 108 }
 109
 110
 111 Painter & XPainter::fillRectangle(int x, int y,
 112         int w, int h,
 113         LColor::color col)
 114 {
 115         XFillRectangle(fl_get_display(), owner_.getPixmap(),
 116                 lyxColorHandler->getGCForeground(col), x, y, w, h);
 117         return *this;
 118 }
 119
 120
 121 Painter & XPainter::fillPolygon(int const * xp, int const * yp,
 122         int np, LColor::color col)
 123 {
 124         boost::scoped_array<XPoint> points(new XPoint[np]);
 125
 126         for (int i = 0; i < np; ++i) {
 127                 points[i].x = xp[i];
 128                 points[i].y = yp[i];
 129         }
 130
 131         XFillPolygon(fl_get_display(), owner_.getPixmap(),
 132                 lyxColorHandler->getGCForeground(col), points.get(),
 133                 np, Nonconvex, CoordModeOrigin);
 134
 135         return *this;
 136 }
 137
 138
 139 Painter & XPainter::arc(int x, int y,
 140         unsigned int w, unsigned int h,
 141         int a1, int a2, LColor::color col)
 142 {
 143         XDrawArc(fl_get_display(), owner_.getPixmap(),
 144                 lyxColorHandler->getGCForeground(col),
 145                 x, y, w, h, a1, a2);
 146         return *this;
 147 }
 148
 149
 150 Painter & XPainter::image(int x, int y,
 151         int w, int h,
 152         grfx::Image const & i)
 153 {
 154         grfx::xformsImage const & image =
 155                 static_cast<grfx::xformsImage const &>(i);
 156
 157         XGCValues val;
 158         val.function = GXcopy;
 159         GC gc = XCreateGC(fl_get_display(), owner_.getPixmap(),
 160                 GCFunction, &val);
 161         XCopyArea(fl_get_display(), image.getPixmap(), owner_.getPixmap(),
 162                 gc, 0, 0, w, h, x, y);
 163         XFreeGC(fl_get_display(), gc);
 164         return *this;
 165 }
 166
 167
 168 Painter & XPainter::text(int x, int y,
 169         string const & s, LyXFont const & f)
 170 {
 171         return text(x, y, s.data(), s.length(), f);
 172 }
 173
 174
 175 Painter & XPainter::text(int x, int y,
 176         char c, LyXFont const & f)
 177 {
 178         char s[2] = { c, '\0' };
 179         return text(x, y, s, 1, f);
 180 }
 181
 182
 183 Painter & XPainter::text(int x, int y,
 184         char const * s, size_t ls,
 185         LyXFont const & f)
 186 {
 187         if (lyxrc.font_norm_type == LyXRC::ISO_10646_1) {
 188                 boost::scoped_array<XChar2b> xs(new XChar2b[ls]);
 189                 Encoding const * encoding = f.language()->encoding();
 190                 LyXFont font(f);
 191                 if (f.isSymbolFont()) {
 192 #ifdef USE_UNICODE_FOR_SYMBOLS
 193                         font.setFamily(LyXFont::ROMAN_FAMILY);
 194                         font.setShape(LyXFont::UP_SHAPE);
 195 #endif
 196                         encoding = encodings.symbol_encoding();
 197                 }
 198                 for (size_t i = 0; i < ls; ++i) {
 199                         Uchar c = encoding->ucs(s[i]);
 200                         xs[i].byte1 = c >> 8;
 201                         xs[i].byte2 = c & 0xff;
 202                 }
 203                 text(x, y, xs.get(), ls, font);
 204                 return *this;
 205         }
 206
 207         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 208         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 209                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 210                 XDrawString(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 211         } else {
 212                 LyXFont smallfont(f);
 213                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 214                 int tmpx = x;
 215                 for (size_t i = 0; i < ls; ++i) {
 216                         char const c = uppercase(s[i]);
 217                         if (c != s[i]) {
 218                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 219                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 220                                         tmpx, y, &c, 1);
 221                                 tmpx += xfont_metrics::XTextWidth(smallfont, &c, 1);
 222                         } else {
 223                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 224                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 225                                         tmpx, y, &c, 1);
 226                                 tmpx += xfont_metrics::XTextWidth(f, &c, 1);
 227                         }
 228                 }
 229         }
 230
 231         if (f.underbar() == LyXFont::ON) {
 232                 underline(f, x, y, font_metrics::width(s, ls, f));
 233         }
 234
 235         return *this;
 236 }
 237
 238
 239 Painter & XPainter::text(int x, int y,
 240         XChar2b const * s, size_t ls,
 241         LyXFont const & f)
 242 {
 243         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 244         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 245                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 246                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 247         } else {
 248                 LyXFont smallfont(f);
 249                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 250                 static XChar2b c;
 251                 int tmpx = x;
 252                 for (size_t i = 0; i < ls; ++i) {
 253                         if (s[i].byte1)
 254                                 c = s[i];
 255                         else {
 256                                 c.byte1 = s[i].byte1;
 257                                 c.byte2 = uppercase(s[i].byte2);
 258                         }
 259                         if (c.byte2 != s[i].byte2) {
 260                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 261                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 262                                         tmpx, y, &c, 1);
 263                                 tmpx += xfont_metrics::XTextWidth16(smallfont, &c, 1);
 264                         } else {
 265                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 266                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 267                                         tmpx, y, &c, 1);
 268                                 tmpx += xfont_metrics::XTextWidth16(f, &c, 1);
 269                         }
 270                 }
 271         }
 272
 273         if (f.underbar() == LyXFont::ON) {
 274                 underline(f, x, y, xfont_metrics::width(s, ls, f));
 275         }
 276
 277         return *this;
 278 }