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 #ifdef USE_XFORMS_IMAGE_LOADER
  27 #include "xformsImage.h"
  28 #else
  29 #include "graphics/GraphicsImageXPM.h"
  30 #endif
  31
  32 #include "support/LAssert.h"
  33 #include "support/lstrings.h"
  34
  35 #include <boost/scoped_array.hpp>
  36
  37 #include <cmath>
  38
  39 using std::endl;
  40 using std::max;
  41
  42
  43 XPainter::XPainter(XWorkArea & xwa)
  44         : Painter(), owner_(xwa)
  45 {
  46 }
  47
  48
  49 int XPainter::paperWidth() const
  50 {
  51         return owner_.workWidth();
  52 }
  53
  54
  55 int XPainter::paperHeight() const
  56 {
  57         return owner_.workHeight();
  58 }
  59
  60
  61 Painter & XPainter::point(int x, int y, LColor::color c)
  62 {
  63         XDrawPoint(fl_get_display(), owner_.getPixmap(),
  64                 lyxColorHandler->getGCForeground(c), x, y);
  65         return *this;
  66 }
  67
  68
  69 Painter & XPainter::line(int x1, int y1,
  70         int x2, int y2,
  71         LColor::color col,
  72         line_style ls,
  73         line_width lw)
  74 {
  75         XDrawLine(fl_get_display(), owner_.getPixmap(),
  76                 lyxColorHandler->getGCLinepars(ls, lw, col),
  77                 x1, y1, x2, y2);
  78         return *this;
  79 }
  80
  81
  82 Painter & XPainter::lines(int const * xp, int const * yp,
  83         int np,
  84         LColor::color col,
  85         line_style ls,
  86         line_width lw)
  87 {
  88         boost::scoped_array<XPoint> points(new XPoint[np]);
  89
  90         for (int i = 0; i < np; ++i) {
  91                 points[i].x = xp[i];
  92                 points[i].y = yp[i];
  93         }
  94
  95         XDrawLines(fl_get_display(), owner_.getPixmap(),
  96                 lyxColorHandler->getGCLinepars(ls, lw, col),
  97                 points.get(), np, CoordModeOrigin);
  98
  99         return *this;
 100 }
 101
 102
 103 Painter & XPainter::rectangle(int x, int y,
 104         int w, int h,
 105         LColor::color col,
 106         line_style ls,
 107         line_width lw)
 108 {
 109         XDrawRectangle(fl_get_display(), owner_.getPixmap(),
 110                 lyxColorHandler->getGCLinepars(ls, lw, col),
 111                 x, y, w, h);
 112         return *this;
 113 }
 114
 115
 116 Painter & XPainter::fillRectangle(int x, int y,
 117         int w, int h,
 118         LColor::color col)
 119 {
 120         XFillRectangle(fl_get_display(), owner_.getPixmap(),
 121                 lyxColorHandler->getGCForeground(col), x, y, w, h);
 122         return *this;
 123 }
 124
 125
 126 Painter & XPainter::fillPolygon(int const * xp, int const * yp,
 127         int np, LColor::color col)
 128 {
 129         boost::scoped_array<XPoint> points(new XPoint[np]);
 130
 131         for (int i = 0; i < np; ++i) {
 132                 points[i].x = xp[i];
 133                 points[i].y = yp[i];
 134         }
 135
 136         XFillPolygon(fl_get_display(), owner_.getPixmap(),
 137                 lyxColorHandler->getGCForeground(col), points.get(),
 138                 np, Nonconvex, CoordModeOrigin);
 139
 140         return *this;
 141 }
 142
 143
 144 Painter & XPainter::arc(int x, int y,
 145         unsigned int w, unsigned int h,
 146         int a1, int a2, LColor::color col)
 147 {
 148         XDrawArc(fl_get_display(), owner_.getPixmap(),
 149                 lyxColorHandler->getGCForeground(col),
 150                 x, y, w, h, a1, a2);
 151         return *this;
 152 }
 153
 154
 155 Painter & XPainter::image(int x, int y,
 156         int w, int h,
 157         grfx::Image const & i)
 158 {
 159 #ifdef USE_XFORMS_IMAGE_LOADER
 160         grfx::xformsImage const & image = static_cast<grfx::xformsImage const &>(i);
 161 #else
 162         grfx::ImageXPM const & image = static_cast<grfx::ImageXPM const &>(i);
 163 #endif
 164
 165         XGCValues val;
 166         val.function = GXcopy;
 167         GC gc = XCreateGC(fl_get_display(), owner_.getPixmap(),
 168                 GCFunction, &val);
 169         XCopyArea(fl_get_display(), image.getPixmap(), owner_.getPixmap(),
 170                 gc, 0, 0, w, h, x, y);
 171         XFreeGC(fl_get_display(), gc);
 172         return *this;
 173 }
 174
 175
 176 Painter & XPainter::text(int x, int y,
 177         string const & s, LyXFont const & f)
 178 {
 179         return text(x, y, s.data(), s.length(), f);
 180 }
 181
 182
 183 Painter & XPainter::text(int x, int y,
 184         char c, LyXFont const & f)
 185 {
 186         char s[2] = { c, '\0' };
 187         return text(x, y, s, 1, f);
 188 }
 189
 190
 191 Painter & XPainter::text(int x, int y,
 192         char const * s, size_t ls,
 193         LyXFont const & f)
 194 {
 195         if (lyxrc.font_norm_type == LyXRC::ISO_10646_1) {
 196                 boost::scoped_array<XChar2b> xs(new XChar2b[ls]);
 197                 Encoding const * encoding = f.language()->encoding();
 198                 LyXFont font(f);
 199                 if (f.isSymbolFont()) {
 200 #ifdef USE_UNICODE_FOR_SYMBOLS
 201                         font.setFamily(LyXFont::ROMAN_FAMILY);
 202                         font.setShape(LyXFont::UP_SHAPE);
 203 #endif
 204                         encoding = encodings.symbol_encoding();
 205                 }
 206                 for (size_t i = 0; i < ls; ++i) {
 207                         Uchar c = encoding->ucs(s[i]);
 208                         xs[i].byte1 = c >> 8;
 209                         xs[i].byte2 = c & 0xff;
 210                 }
 211                 text(x , y, xs.get(), ls, font);
 212                 return *this;
 213         }
 214
 215         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 216         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 217                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 218                 XDrawString(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 219         } else {
 220                 LyXFont smallfont(f);
 221                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 222                 int tmpx = x;
 223                 for (size_t i = 0; i < ls; ++i) {
 224                         char const c = uppercase(s[i]);
 225                         if (c != s[i]) {
 226                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 227                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 228                                         tmpx, y, &c, 1);
 229                                 tmpx += xfont_metrics::XTextWidth(smallfont, &c, 1);
 230                         } else {
 231                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 232                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 233                                         tmpx, y, &c, 1);
 234                                 tmpx += xfont_metrics::XTextWidth(f, &c, 1);
 235                         }
 236                 }
 237         }
 238
 239         if (f.underbar() == LyXFont::ON) {
 240                 underline(f, x, y, font_metrics::width(s, ls, f));
 241         }
 242
 243         return *this;
 244 }
 245
 246
 247 Painter & XPainter::text(int x, int y,
 248         XChar2b const * s, size_t ls,
 249         LyXFont const & f)
 250 {
 251         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 252         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 253                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 254                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 255         } else {
 256                 LyXFont smallfont(f);
 257                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 258                 static XChar2b c;
 259                 int tmpx = x;
 260                 for (size_t i = 0; i < ls; ++i) {
 261                         if (s[i].byte1)
 262                                 c = s[i];
 263                         else {
 264                                 c.byte1 = s[i].byte1;
 265                                 c.byte2 = uppercase(s[i].byte2);
 266                         }
 267                         if (c.byte2 != s[i].byte2) {
 268                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 269                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 270                                         tmpx, y, &c, 1);
 271                                 tmpx += xfont_metrics::XTextWidth16(smallfont, &c, 1);
 272                         } else {
 273                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 274                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 275                                         tmpx, y, &c, 1);
 276                                 tmpx += xfont_metrics::XTextWidth16(f, &c, 1);
 277                         }
 278                 }
 279         }
 280
 281         if (f.underbar() == LyXFont::ON) {
 282                 underline(f, x, y, xfont_metrics::width(s, ls, f));
 283         }
 284
 285         return *this;
 286 }