src/frontends/xforms/XPainter.C

   1 /**
   2  * \file XPainter.C
   3  * Read the file COPYING
   4  *
   5  * \author unknown
   6  * \author John Levon
   7  *
   8  * Full author contact details are available in file CREDITS
   9  */
  10
  11 #include <config.h>
  12
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #endif
  16
  17 #include "XPainter.h"
  18 #include "LString.h"
  19 #include "debug.h"
  20 #include "XWorkArea.h"
  21 #include "xfont_metrics.h"
  22 #include "ColorHandler.h"
  23 #include "lyxrc.h"
  24 #include "encoding.h"
  25 #include "language.h"
  26
  27 #ifdef USE_XFORMS_IMAGE_LOADER
  28 #include "xformsImage.h"
  29 #else
  30 #include "graphics/GraphicsImageXPM.h"
  31 #endif
  32
  33 #include "support/LAssert.h"
  34 #include "support/lstrings.h"
  35
  36 #include <boost/scoped_array.hpp>
  37
  38 #include <cmath>
  39
  40 using std::endl;
  41 using std::max;
  42
  43
  44 XPainter::XPainter(XWorkArea & xwa)
  45         : Painter(), owner_(xwa)
  46 {
  47 }
  48
  49
  50 int XPainter::paperWidth() const
  51 {
  52         return owner_.workWidth();
  53 }
  54
  55
  56 int XPainter::paperHeight() const
  57 {
  58         return owner_.workHeight();
  59 }
  60
  61
  62 Painter & XPainter::point(int x, int y, LColor::color c)
  63 {
  64         XDrawPoint(fl_get_display(), owner_.getPixmap(),
  65                 lyxColorHandler->getGCForeground(c), x, y);
  66         return *this;
  67 }
  68
  69
  70 Painter & XPainter::line(int x1, int y1,
  71         int x2, int y2,
  72         LColor::color col,
  73         line_style ls,
  74         line_width lw)
  75 {
  76         XDrawLine(fl_get_display(), owner_.getPixmap(),
  77                 lyxColorHandler->getGCLinepars(ls, lw, col),
  78                 x1, y1, x2, y2);
  79         return *this;
  80 }
  81
  82
  83 Painter & XPainter::lines(int const * xp, int const * yp,
  84         int np,
  85         LColor::color col,
  86         line_style ls,
  87         line_width lw)
  88 {
  89         boost::scoped_array<XPoint> points(new XPoint[np]);
  90
  91         for (int i = 0; i < np; ++i) {
  92                 points[i].x = xp[i];
  93                 points[i].y = yp[i];
  94         }
  95
  96         XDrawLines(fl_get_display(), owner_.getPixmap(),
  97                 lyxColorHandler->getGCLinepars(ls, lw, col),
  98                 points.get(), np, CoordModeOrigin);
  99
 100         return *this;
 101 }
 102
 103
 104 Painter & XPainter::rectangle(int x, int y,
 105         int w, int h,
 106         LColor::color col,
 107         line_style ls,
 108         line_width lw)
 109 {
 110         XDrawRectangle(fl_get_display(), owner_.getPixmap(),
 111                 lyxColorHandler->getGCLinepars(ls, lw, col),
 112                 x, y, w, h);
 113         return *this;
 114 }
 115
 116
 117 Painter & XPainter::fillRectangle(int x, int y,
 118         int w, int h,
 119         LColor::color col)
 120 {
 121         XFillRectangle(fl_get_display(), owner_.getPixmap(),
 122                 lyxColorHandler->getGCForeground(col), x, y, w, h);
 123         return *this;
 124 }
 125
 126
 127 Painter & XPainter::fillPolygon(int const * xp, int const * yp,
 128         int np, LColor::color col)
 129 {
 130         boost::scoped_array<XPoint> points(new XPoint[np]);
 131
 132         for (int i = 0; i < np; ++i) {
 133                 points[i].x = xp[i];
 134                 points[i].y = yp[i];
 135         }
 136
 137         XFillPolygon(fl_get_display(), owner_.getPixmap(),
 138                 lyxColorHandler->getGCForeground(col), points.get(),
 139                 np, Nonconvex, CoordModeOrigin);
 140
 141         return *this;
 142 }
 143
 144
 145 Painter & XPainter::arc(int x, int y,
 146         unsigned int w, unsigned int h,
 147         int a1, int a2, LColor::color col)
 148 {
 149         XDrawArc(fl_get_display(), owner_.getPixmap(),
 150                 lyxColorHandler->getGCForeground(col),
 151                 x, y, w, h, a1, a2);
 152         return *this;
 153 }
 154
 155
 156 Painter & XPainter::image(int x, int y,
 157         int w, int h,
 158         grfx::Image const & i)
 159 {
 160 #ifdef USE_XFORMS_IMAGE_LOADER
 161         grfx::xformsImage const & image = static_cast<grfx::xformsImage const &>(i);
 162 #else
 163         grfx::ImageXPM const & image = static_cast<grfx::ImageXPM const &>(i);
 164 #endif
 165
 166         XGCValues val;
 167         val.function = GXcopy;
 168         GC gc = XCreateGC(fl_get_display(), owner_.getPixmap(),
 169                 GCFunction, &val);
 170         XCopyArea(fl_get_display(), image.getPixmap(), owner_.getPixmap(),
 171                 gc, 0, 0, w, h, x, y);
 172         XFreeGC(fl_get_display(), gc);
 173         return *this;
 174 }
 175
 176
 177 Painter & XPainter::text(int x, int y,
 178         string const & s, LyXFont const & f)
 179 {
 180         return text(x, y, s.data(), s.length(), f);
 181 }
 182
 183
 184 Painter & XPainter::text(int x, int y,
 185         char c, LyXFont const & f)
 186 {
 187         char s[2] = { c, '\0' };
 188         return text(x, y, s, 1, f);
 189 }
 190
 191
 192 Painter & XPainter::text(int x, int y,
 193         char const * s, size_t ls,
 194         LyXFont const & f)
 195 {
 196         if (lyxrc.font_norm_type == LyXRC::ISO_10646_1) {
 197                 boost::scoped_array<XChar2b> xs(new XChar2b[ls]);
 198                 Encoding const * encoding = f.language()->encoding();
 199                 LyXFont font(f);
 200                 if (f.isSymbolFont()) {
 201 #ifdef USE_UNICODE_FOR_SYMBOLS
 202                         font.setFamily(LyXFont::ROMAN_FAMILY);
 203                         font.setShape(LyXFont::UP_SHAPE);
 204 #endif
 205                         encoding = encodings.symbol_encoding();
 206                 }
 207                 for (size_t i = 0; i < ls; ++i) {
 208                         Uchar c = encoding->ucs(s[i]);
 209                         xs[i].byte1 = c >> 8;
 210                         xs[i].byte2 = c & 0xff;
 211                 }
 212                 text(x, y, xs.get(), ls, font);
 213                 return *this;
 214         }
 215
 216         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 217         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 218                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 219                 XDrawString(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 220         } else {
 221                 LyXFont smallfont(f);
 222                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 223                 int tmpx = x;
 224                 for (size_t i = 0; i < ls; ++i) {
 225                         char const c = uppercase(s[i]);
 226                         if (c != s[i]) {
 227                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 228                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 229                                         tmpx, y, &c, 1);
 230                                 tmpx += xfont_metrics::XTextWidth(smallfont, &c, 1);
 231                         } else {
 232                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 233                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 234                                         tmpx, y, &c, 1);
 235                                 tmpx += xfont_metrics::XTextWidth(f, &c, 1);
 236                         }
 237                 }
 238         }
 239
 240         if (f.underbar() == LyXFont::ON) {
 241                 underline(f, x, y, font_metrics::width(s, ls, f));
 242         }
 243
 244         return *this;
 245 }
 246
 247
 248 Painter & XPainter::text(int x, int y,
 249         XChar2b const * s, size_t ls,
 250         LyXFont const & f)
 251 {
 252         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 253         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 254                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 255                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 256         } else {
 257                 LyXFont smallfont(f);
 258                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 259                 static XChar2b c;
 260                 int tmpx = x;
 261                 for (size_t i = 0; i < ls; ++i) {
 262                         if (s[i].byte1)
 263                                 c = s[i];
 264                         else {
 265                                 c.byte1 = s[i].byte1;
 266                                 c.byte2 = uppercase(s[i].byte2);
 267                         }
 268                         if (c.byte2 != s[i].byte2) {
 269                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 270                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 271                                         tmpx, y, &c, 1);
 272                                 tmpx += xfont_metrics::XTextWidth16(smallfont, &c, 1);
 273                         } else {
 274                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 275                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 276                                         tmpx, y, &c, 1);
 277                                 tmpx += xfont_metrics::XTextWidth16(f, &c, 1);
 278                         }
 279                 }
 280         }
 281
 282         if (f.underbar() == LyXFont::ON) {
 283                 underline(f, x, y, xfont_metrics::width(s, ls, f));
 284         }
 285
 286         return *this;
 287 }