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 #ifdef __GNUG__
  15 #pragma implementation
  16 #endif
  17
  18 #include "XPainter.h"
  19 #include "LString.h"
  20 #include "debug.h"
  21 #include "XWorkArea.h"
  22 #include "xfont_metrics.h"
  23 #include "ColorHandler.h"
  24 #include "lyxrc.h"
  25 #include "encoding.h"
  26 #include "language.h"
  27
  28 #ifdef USE_XFORMS_IMAGE_LOADER
  29 #include "xformsImage.h"
  30 #else
  31 #include "graphics/GraphicsImageXPM.h"
  32 #endif
  33
  34 #include "support/LAssert.h"
  35 #include "support/lstrings.h"
  36
  37 #include <boost/scoped_array.hpp>
  38
  39 #include <cmath>
  40
  41 using std::endl;
  42 using std::max;
  43
  44
  45 XPainter::XPainter(XWorkArea & xwa)
  46         : Painter(), owner_(xwa)
  47 {
  48 }
  49
  50
  51 int XPainter::paperWidth() const
  52 {
  53         return owner_.workWidth();
  54 }
  55
  56
  57 int XPainter::paperHeight() const
  58 {
  59         return owner_.workHeight();
  60 }
  61
  62
  63 Painter & XPainter::point(int x, int y, LColor::color c)
  64 {
  65         XDrawPoint(fl_get_display(), owner_.getPixmap(),
  66                 lyxColorHandler->getGCForeground(c), x, y);
  67         return *this;
  68 }
  69
  70
  71 Painter & XPainter::line(int x1, int y1,
  72         int x2, int y2,
  73         LColor::color col,
  74         line_style ls,
  75         line_width lw)
  76 {
  77         XDrawLine(fl_get_display(), owner_.getPixmap(),
  78                 lyxColorHandler->getGCLinepars(ls, lw, col),
  79                 x1, y1, x2, y2);
  80         return *this;
  81 }
  82
  83
  84 Painter & XPainter::lines(int const * xp, int const * yp,
  85         int np,
  86         LColor::color col,
  87         line_style ls,
  88         line_width lw)
  89 {
  90         boost::scoped_array<XPoint> points(new XPoint[np]);
  91
  92         for (int i = 0; i < np; ++i) {
  93                 points[i].x = xp[i];
  94                 points[i].y = yp[i];
  95         }
  96
  97         XDrawLines(fl_get_display(), owner_.getPixmap(),
  98                 lyxColorHandler->getGCLinepars(ls, lw, col),
  99                 points.get(), np, CoordModeOrigin);
 100
 101         return *this;
 102 }
 103
 104
 105 Painter & XPainter::rectangle(int x, int y,
 106         int w, int h,
 107         LColor::color col,
 108         line_style ls,
 109         line_width lw)
 110 {
 111         XDrawRectangle(fl_get_display(), owner_.getPixmap(),
 112                 lyxColorHandler->getGCLinepars(ls, lw, col),
 113                 x, y, w, h);
 114         return *this;
 115 }
 116
 117
 118 Painter & XPainter::fillRectangle(int x, int y,
 119         int w, int h,
 120         LColor::color col)
 121 {
 122         XFillRectangle(fl_get_display(), owner_.getPixmap(),
 123                 lyxColorHandler->getGCForeground(col), x, y, w, h);
 124         return *this;
 125 }
 126
 127
 128 Painter & XPainter::fillPolygon(int const * xp, int const * yp,
 129         int np, LColor::color col)
 130 {
 131         boost::scoped_array<XPoint> points(new XPoint[np]);
 132
 133         for (int i = 0; i < np; ++i) {
 134                 points[i].x = xp[i];
 135                 points[i].y = yp[i];
 136         }
 137
 138         XFillPolygon(fl_get_display(), owner_.getPixmap(),
 139                 lyxColorHandler->getGCForeground(col), points.get(),
 140                 np, Nonconvex, CoordModeOrigin);
 141
 142         return *this;
 143 }
 144
 145
 146 Painter & XPainter::arc(int x, int y,
 147         unsigned int w, unsigned int h,
 148         int a1, int a2, LColor::color col)
 149 {
 150         XDrawArc(fl_get_display(), owner_.getPixmap(),
 151                 lyxColorHandler->getGCForeground(col),
 152                 x, y, w, h, a1, a2);
 153         return *this;
 154 }
 155
 156
 157 Painter & XPainter::image(int x, int y,
 158         int w, int h,
 159         grfx::Image const & i)
 160 {
 161 #ifdef USE_XFORMS_IMAGE_LOADER
 162         grfx::xformsImage const & image = static_cast<grfx::xformsImage const &>(i);
 163 #else
 164         grfx::ImageXPM const & image = static_cast<grfx::ImageXPM const &>(i);
 165 #endif
 166
 167         XGCValues val;
 168         val.function = GXcopy;
 169         GC gc = XCreateGC(fl_get_display(), owner_.getPixmap(),
 170                 GCFunction, &val);
 171         XCopyArea(fl_get_display(), image.getPixmap(), owner_.getPixmap(),
 172                 gc, 0, 0, w, h, x, y);
 173         XFreeGC(fl_get_display(), gc);
 174         return *this;
 175 }
 176
 177
 178 Painter & XPainter::text(int x, int y,
 179         string const & s, LyXFont const & f)
 180 {
 181         return text(x, y, s.data(), s.length(), f);
 182 }
 183
 184
 185 Painter & XPainter::text(int x, int y,
 186         char c, LyXFont const & f)
 187 {
 188         char s[2] = { c, '\0' };
 189         return text(x, y, s, 1, f);
 190 }
 191
 192
 193 Painter & XPainter::text(int x, int y,
 194         char const * s, size_t ls,
 195         LyXFont const & f)
 196 {
 197         if (lyxrc.font_norm_type == LyXRC::ISO_10646_1) {
 198                 boost::scoped_array<XChar2b> xs(new XChar2b[ls]);
 199                 Encoding const * encoding = f.language()->encoding();
 200                 LyXFont font(f);
 201                 if (f.isSymbolFont()) {
 202 #ifdef USE_UNICODE_FOR_SYMBOLS
 203                         font.setFamily(LyXFont::ROMAN_FAMILY);
 204                         font.setShape(LyXFont::UP_SHAPE);
 205 #endif
 206                         encoding = encodings.symbol_encoding();
 207                 }
 208                 for (size_t i = 0; i < ls; ++i) {
 209                         Uchar c = encoding->ucs(s[i]);
 210                         xs[i].byte1 = c >> 8;
 211                         xs[i].byte2 = c & 0xff;
 212                 }
 213                 text(x, y, xs.get(), ls, font);
 214                 return *this;
 215         }
 216
 217         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 218         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 219                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 220                 XDrawString(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 221         } else {
 222                 LyXFont smallfont(f);
 223                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 224                 int tmpx = x;
 225                 for (size_t i = 0; i < ls; ++i) {
 226                         char const c = uppercase(s[i]);
 227                         if (c != s[i]) {
 228                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 229                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 230                                         tmpx, y, &c, 1);
 231                                 tmpx += xfont_metrics::XTextWidth(smallfont, &c, 1);
 232                         } else {
 233                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 234                                 XDrawString(fl_get_display(), owner_.getPixmap(), gc,
 235                                         tmpx, y, &c, 1);
 236                                 tmpx += xfont_metrics::XTextWidth(f, &c, 1);
 237                         }
 238                 }
 239         }
 240
 241         if (f.underbar() == LyXFont::ON) {
 242                 underline(f, x, y, font_metrics::width(s, ls, f));
 243         }
 244
 245         return *this;
 246 }
 247
 248
 249 Painter & XPainter::text(int x, int y,
 250         XChar2b const * s, size_t ls,
 251         LyXFont const & f)
 252 {
 253         GC gc = lyxColorHandler->getGCForeground(f.realColor());
 254         if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
 255                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 256                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc, x, y, s, ls);
 257         } else {
 258                 LyXFont smallfont(f);
 259                 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
 260                 static XChar2b c;
 261                 int tmpx = x;
 262                 for (size_t i = 0; i < ls; ++i) {
 263                         if (s[i].byte1)
 264                                 c = s[i];
 265                         else {
 266                                 c.byte1 = s[i].byte1;
 267                                 c.byte2 = uppercase(s[i].byte2);
 268                         }
 269                         if (c.byte2 != s[i].byte2) {
 270                                 xfont_metrics::XSetFont(fl_get_display(), gc, smallfont);
 271                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 272                                         tmpx, y, &c, 1);
 273                                 tmpx += xfont_metrics::XTextWidth16(smallfont, &c, 1);
 274                         } else {
 275                                 xfont_metrics::XSetFont(fl_get_display(), gc, f);
 276                                 XDrawString16(fl_get_display(), owner_.getPixmap(), gc,
 277                                         tmpx, y, &c, 1);
 278                                 tmpx += xfont_metrics::XTextWidth16(f, &c, 1);
 279                         }
 280                 }
 281         }
 282
 283         if (f.underbar() == LyXFont::ON) {
 284                 underline(f, x, y, xfont_metrics::width(s, ls, f));
 285         }
 286
 287         return *this;
 288 }