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 Lars Gullik Bjønnes
   7  * \author John Levon
   8  *
   9  * Full author contact details are available in file CREDITS
  10  */
  11
  12 #include <config.h>
  13
  14 #include "XPainter.h"
  15 #include "LString.h"
  16 #include "debug.h"
  17 #include "XWorkArea.h"
  18 #include "xfont_metrics.h"
  19 #include "ColorHandler.h"
  20 #include "lyxrc.h"
  21 #include "encoding.h"
  22 #include "language.h"
  23
  24 #include "xformsImage.h"
  25
  26 #include "support/LAssert.h"
  27 #include "support/lstrings.h"
  28
  29 #include <boost/scoped_array.hpp>
  30
  31 #include <cmath>
  32
  33 using namespace lyx::support;
  34
  35 using std::endl;
  36 using std::max;
  37
  38 namespace grfx = lyx::graphics;
  39
  40 XPainter::XPainter(XWorkArea & xwa)
  41         : Painter(), owner_(xwa)
  42 {
  43 }
  44
  45
  46 int XPainter::paperWidth() const
  47 {
  48         return owner_.workWidth();
  49 }
  50
  51
  52 int XPainter::paperHeight() const
  53 {
  54         return owner_.workHeight();
  55 }
  56
  57
  58 Painter & XPainter::point(int x, int y, LColor::color c)
  59 {
  60         XDrawPoint(fl_get_display(), owner_.getPixmap(),
  61                 lyxColorHandler->getGCForeground(c), x, y);
  62         return *this;
  63 }
  64
  65
  66 Painter & XPainter::line(int x1, int y1,
  67         int x2, int y2,
  68         LColor::color col,
  69         line_style ls,
  70         line_width lw)
  71 {
  72         XDrawLine(fl_get_display(), owner_.getPixmap(),
  73                 lyxColorHandler->getGCLinepars(ls, lw, col),
  74                 x1, y1, x2, y2);
  75         return *this;
  76 }
  77
  78
  79 Painter & XPainter::lines(int const * xp, int const * yp,
  80         int np,
  81         LColor::color col,
  82         line_style ls,
  83         line_width lw)
  84 {
  85         boost::scoped_array<XPoint> points(new XPoint[np]);
  86
  87         for (int i = 0; i < np; ++i) {
  88                 points[i].x = xp[i];
  89                 points[i].y = yp[i];
  90         }
  91
  92         XDrawLines(fl_get_display(), owner_.getPixmap(),
  93                 lyxColorHandler->getGCLinepars(ls, lw, col),
  94                 points.get(), np, CoordModeOrigin);
  95
  96         return *this;
  97 }
  98
  99
 100 Painter & XPainter::rectangle(int x, int y,
 101         int w, int h,
 102         LColor::color col,
 103         line_style ls,
 104         line_width lw)
 105 {
 106         XDrawRectangle(fl_get_display(), owner_.getPixmap(),
 107                 lyxColorHandler->getGCLinepars(ls, lw, col),
 108                 x, y, w, h);
 109         return *this;
 110 }
 111
 112
 113 Painter & XPainter::fillRectangle(int x, int y,
 114         int w, int h,
 115         LColor::color col)
 116 {
 117         XFillRectangle(fl_get_display(), owner_.getPixmap(),
 118                 lyxColorHandler->getGCForeground(col), x, y, w, h);
 119         return *this;
 120 }
 121
 122
 123 Painter & XPainter::fillPolygon(int const * xp, int const * yp,
 124         int np, LColor::color col)
 125 {
 126         boost::scoped_array<XPoint> points(new XPoint[np]);
 127
 128         for (int i = 0; i < np; ++i) {
 129                 points[i].x = xp[i];
 130                 points[i].y = yp[i];
 131         }
 132
 133         XFillPolygon(fl_get_display(), owner_.getPixmap(),
 134                 lyxColorHandler->getGCForeground(col), points.get(),
 135                 np, Nonconvex, CoordModeOrigin);
 136
 137         return *this;
 138 }
 139
 140
 141 Painter & XPainter::arc(int x, int y,
 142         unsigned int w, unsigned int h,
 143         int a1, int a2, LColor::color col)
 144 {
 145         XDrawArc(fl_get_display(), owner_.getPixmap(),
 146                 lyxColorHandler->getGCForeground(col),
 147                 x, y, w, h, a1, a2);
 148         return *this;
 149 }
 150
 151
 152 Painter & XPainter::image(int x, int y,
 153         int w, int h,
 154         grfx::Image const & i)
 155 {
 156         grfx::xformsImage const & image =
 157                 static_cast<grfx::xformsImage const &>(i);
 158
 159         XGCValues val;
 160         val.function = GXcopy;
 161         GC gc = XCreateGC(fl_get_display(), owner_.getPixmap(),
 162                 GCFunction, &val);
 163         XCopyArea(fl_get_display(), image.getPixmap(), owner_.getPixmap(),
 164                 gc, 0, 0, w, h, x, y);
 165         XFreeGC(fl_get_display(), gc);
 166         return *this;
 167 }
 168
 169
 170 Painter & XPainter::text(int x, int y,
 171         string const & s, LyXFont const & f)
 172 {
 173         return text(x, y, s.data(), s.length(), f);
 174 }
 175
 176
 177 Painter & XPainter::text(int x, int y,
 178         char c, LyXFont const & f)
 179 {
 180         char s[2] = { c, '\0' };
 181         return text(x, y, s, 1, f);
 182 }
 183
 184
 185 Painter & XPainter::text(int x, int y,
 186         char const * s, size_t ls,
 187         LyXFont const & f)
 188 {
 189         if (lyxrc.font_norm_type == LyXRC::ISO_10646_1) {
 190                 boost::scoped_array<XChar2b> xs(new XChar2b[ls]);
 191                 Encoding const * encoding = f.language()->encoding();
 192                 LyXFont font(f);
 193                 if (f.isSymbolFont()) {
 194 #ifdef USE_UNICODE_FOR_SYMBOLS
 195                         font.setFamily(LyXFont::ROMAN_FAMILY);
 196                         font.setShape(LyXFont::UP_SHAPE);
 197 #endif
 198                         encoding = encodings.symbol_encoding();
 199                 }
 200                 for (size_t i = 0; i < ls; ++i) {
 201                         Uchar c = encoding->ucs(s[i]);
 202                         xs[i].byte1 = c >> 8;
 203                         xs[i].byte2 = c & 0xff;
 204                 }
 205                 text(x, y, xs.get(), ls, font);
 206                 return *this;
 207         }
 208
 209         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 210         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 211                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 212                 XDrawString(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 213         } else {
 214                 LyXFont smallfont(f);
 215                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 216                 int tmpx = x;
 217                 for (size_t i = 0; i < ls; ++i) {
 218                         char const c = uppercase(s[i]);
 219                         if (c != s[i]) {
 220                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 221                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 222                                         tmpx, y, &c, 1);
 223                                 tmpx += xfont_metrics::XTextWidth(smallfont, &c, 1);
 224                         } else {
 225                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 226                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 227                                         tmpx, y, &c, 1);
 228                                 tmpx += xfont_metrics::XTextWidth(f, &c, 1);
 229                         }
 230                 }
 231         }
 232
 233         if (f.underbar() == LyXFont::ON) {
 234                 underline(f, x, y, font_metrics::width(s, ls, f));
 235         }
 236
 237         return *this;
 238 }
 239
 240
 241 Painter & XPainter::text(int x, int y,
 242         XChar2b const * s, size_t ls,
 243         LyXFont const & f)
 244 {
 245         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 246         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 247                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 248                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 249         } else {
 250                 LyXFont smallfont(f);
 251                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 252                 static XChar2b c;
 253                 int tmpx = x;
 254                 for (size_t i = 0; i < ls; ++i) {
 255                         if (s[i].byte1)
 256                                 c = s[i];
 257                         else {
 258                                 c.byte1 = s[i].byte1;
 259                                 c.byte2 = uppercase(s[i].byte2);
 260                         }
 261                         if (c.byte2 != s[i].byte2) {
 262                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 263                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 264                                         tmpx, y, &c, 1);
 265                                 tmpx += xfont_metrics::XTextWidth16(smallfont, &c, 1);
 266                         } else {
 267                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 268                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 269                                         tmpx, y, &c, 1);
 270                                 tmpx += xfont_metrics::XTextWidth16(f, &c, 1);
 271                         }
 272                 }
 273         }
 274
 275         if (f.underbar() == LyXFont::ON) {
 276                 underline(f, x, y, xfont_metrics::width(s, ls, f));
 277         }
 278
 279         return *this;
 280 }