3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
7 * \author Abdelrazak Younes
9 * Full author contact details are available in file CREDITS.
14 #include <QTextLayout>
16 #include "QLPainter.h"
18 #include "GuiApplication.h"
19 #include "GuiFontMetrics.h"
22 #include "GuiApplication.h"
23 #include "qt_helpers.h"
29 #include "support/unicode.h"
37 QLPainter::QLPainter(QPaintDevice * device)
38 : QPainter(device), Painter()
40 // new QPainter has default QPen:
41 current_color_ = LColor::black;
42 current_ls_ = line_solid;
43 current_lw_ = line_thin;
47 QLPainter::~QLPainter()
50 //lyxerr << "QLPainter::end()" << endl;
54 void QLPainter::setQPainterPen(LColor_color col,
55 Painter::line_style ls, Painter::line_width lw)
57 if (col == current_color_ && ls == current_ls_ && lw == current_lw_)
64 QPen pen = QPainter::pen();
66 pen.setColor(guiApp->colorCache().get(col));
69 case line_solid: pen.setStyle(Qt::SolidLine); break;
70 case line_onoffdash: pen.setStyle(Qt::DotLine); break;
74 case line_thin: pen.setWidth(0); break;
75 case line_thick: pen.setWidth(3); break;
82 void QLPainter::point(int x, int y, LColor_color col)
84 if (!isDrawingEnabled())
92 void QLPainter::line(int x1, int y1, int x2, int y2,
97 if (!isDrawingEnabled())
100 setQPainterPen(col, ls, lw);
101 drawLine(x1, y1, x2, y2);
105 void QLPainter::lines(int const * xp, int const * yp, int np,
112 // Must use new as np is not known at compile time.
113 boost::scoped_array<QPoint> points(new QPoint[np]);
115 for (int i = 0; i < np; ++i) {
116 points[i].setX(xp[i]);
117 points[i].setY(yp[i]);
120 if (!isDrawingEnabled())
123 setQPainterPen(col, ls, lw);
124 drawPolyline(points.get(), np);
128 void QLPainter::rectangle(int x, int y, int w, int h,
133 if (!isDrawingEnabled())
136 setQPainterPen(col, ls, lw);
137 drawRect(x, y, w, h);
141 void QLPainter::fillRectangle(int x, int y, int w, int h, LColor_color col)
143 fillRect(x, y, w, h, guiApp->colorCache().get(col));
147 void QLPainter::arc(int x, int y, unsigned int w, unsigned int h,
148 int a1, int a2, LColor_color col)
150 if (!isDrawingEnabled())
153 // LyX usings 1/64ths degree, Qt usings 1/16th
155 drawArc(x, y, w, h, a1 / 4, a2 / 4);
159 void QLPainter::image(int x, int y, int w, int h, graphics::Image const & i)
161 graphics::QLImage const & qlimage =
162 static_cast<graphics::QLImage const &>(i);
164 fillRectangle(x, y, w, h, LColor::graphicsbg);
166 if (!isDrawingEnabled())
169 drawImage(x, y, qlimage.qimage(), 0, 0, w, h);
173 int QLPainter::text(int x, int y, char_type c, LyXFont const & f)
176 return text(x, y, s, f);
180 int QLPainter::smallCapsText(int x, int y,
181 QString const & s, LyXFont const & f)
183 LyXFont smallfont(f);
184 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
186 QFont const & qfont = guiApp->guiFontLoader().get(f);
187 QFont const & qsmallfont = guiApp->guiFontLoader().get(smallfont);
189 setQPainterPen(f.realColor());
191 size_t const ls = s.length();
192 for (unsigned int i = 0; i < ls; ++i) {
193 QChar const c = s[i].toUpper();
199 if (isDrawingEnabled())
200 drawText(x + textwidth, y, c);
201 textwidth += fontMetrics().width(c);
207 int QLPainter::text(int x, int y, docstring const & s,
210 QString str = toqstr(s);
213 // HACK: QT3 refuses to show single compose characters
214 // Still needed with Qt4?
215 if (ls == 1 && str[0].unicode() >= 0x05b0 && str[0].unicode() <= 0x05c2)
219 QLFontInfo & fi = guiApp->guiFontLoader().fontinfo(f);
223 if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
224 setQPainterPen(f.realColor());
225 if (font() != fi.font)
227 // We need to draw the text as LTR as we use our own bidi code.
228 setLayoutDirection(Qt::LeftToRight);
229 if (isDrawingEnabled()) {
230 if (lyxerr.debugging(Debug::PAINTING)) {
231 lyxerr[Debug::PAINTING] << "draw " << std::string(str.toUtf8())
232 << " at " << x << "," << y << std::endl;
234 // Qt4 does not display a glyph whose codepoint is the
235 // same as that of a soft-hyphen (0x00ad), unless it
236 // occurs at a line-break. As a kludge, we force Qt to
237 // render this glyph using a one-column line.
238 if (s.size() == 1 && str[0].unicode() == 0x00ad) {
239 QTextLayout adsymbol(str);
240 adsymbol.setFont(fi.font);
241 adsymbol.beginLayout();
242 QTextLine line = adsymbol.createLine();
243 line.setNumColumns(1);
244 line.setPosition(QPointF(0, -line.ascent()));
245 adsymbol.endLayout();
246 line.draw(this, QPointF(x, y));
250 // Here we use the font width cache instead of
251 // textwidth = fontMetrics().width(str);
252 // because the above is awfully expensive on MacOSX
253 textwidth = fi.metrics->width(str);
255 textwidth = smallCapsText(x, y, str, f);
258 if (f.underbar() == LyXFont::ON) {
259 underline(f, x, y, textwidth);
266 } // namespace frontend