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 "QLPainter.h"
16 #include "GuiWorkArea.h"
18 #include "ColorCache.h"
19 #include "FontLoader.h"
21 #include "Application.h"
27 #include "frontends/font_metrics.h"
29 #include "support/unicode.h"
45 QLPainter::~QLPainter()
50 QLPainter::QLPainter(GuiWorkArea * qwa)
51 : Painter(), qwa_(qwa)
56 void QLPainter::start()
58 qp_.reset(new QPainter(qwa_->paintDevice()));
59 // new QPainter has default QPen:
60 current_color_ = LColor::black;
61 current_ls_ = line_solid;
62 current_lw_ = line_thin;
72 int QLPainter::paperWidth() const
74 return qwa_->viewport()->width();
78 int QLPainter::paperHeight() const
80 return qwa_->viewport()->height();
83 void QLPainter::setQPainterPen(LColor_color col,
84 Painter::line_style ls, Painter::line_width lw)
86 if (col == current_color_ && ls == current_ls_ && lw == current_lw_)
93 QPen pen = qp_.get()->pen();
95 pen.setColor(lcolorcache.get(col));
98 case line_solid: pen.setStyle(Qt::SolidLine); break;
99 case line_onoffdash: pen.setStyle(Qt::DotLine); break;
103 case line_thin: pen.setWidth(0); break;
104 case line_thick: pen.setWidth(3); break;
107 qp_.get()->setPen(pen);
111 void QLPainter::point(int x, int y, LColor_color col)
114 qp_->drawPoint(x, y);
118 void QLPainter::line(int x1, int y1, int x2, int y2,
123 setQPainterPen(col, ls, lw);
124 qp_->drawLine(x1, y1, x2, y2);
128 void QLPainter::lines(int const * xp, int const * yp, int np,
135 // Must use new as np is not known at compile time.
136 boost::scoped_array<QPoint> points(new QPoint[np]);
138 for (int i = 0; i < np; ++i) {
139 points[i].setX(xp[i]);
140 points[i].setY(yp[i]);
143 setQPainterPen(col, ls, lw);
144 qp_->drawPolyline(points.get(), np);
148 void QLPainter::rectangle(int x, int y, int w, int h,
153 setQPainterPen(col, ls, lw);
154 qp_->drawRect(x, y, w, h);
158 void QLPainter::fillRectangle(int x, int y, int w, int h, LColor_color col)
160 qp_->fillRect(x, y, w, h, lcolorcache.get(col));
164 void QLPainter::arc(int x, int y, unsigned int w, unsigned int h,
165 int a1, int a2, LColor_color col)
167 // LyX usings 1/64ths degree, Qt usings 1/16th
169 qp_->drawArc(x, y, w, h, a1 / 4, a2 / 4);
173 void QLPainter::image(int x, int y, int w, int h,
174 lyx::graphics::Image const & i)
176 lyx::graphics::QLImage const & qlimage =
177 static_cast<lyx::graphics::QLImage const &>(i);
179 fillRectangle(x, y, w, h, LColor::graphicsbg);
181 qp_->drawImage(x, y, qlimage.qimage(), 0, 0, w, h);
185 void QLPainter::text(int x, int y, docstring const & s, LyXFont const & f)
187 return text(x, y, reinterpret_cast<char_type const *>(s.data()), s.length(), f);
191 void QLPainter::text(int x, int y, char_type c, LyXFont const & f)
193 char_type s[2] = { c, char_type('\0') };
194 return text(x, y, s, 1, f);
198 void QLPainter::smallCapsText(int x, int y,
199 QString const & s, LyXFont const & f)
201 LyXFont smallfont(f);
202 smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
204 QFont const & qfont = theApp->fontLoader().get(f);
205 QFont const & qsmallfont = theApp->fontLoader().get(smallfont);
206 QFontMetrics const & qfontm = QFontMetrics(qfont);
207 QFontMetrics const & qsmallfontm = QFontMetrics(qsmallfont);
209 setQPainterPen(f.realColor());
211 size_t ls = s.length();
212 for (unsigned int i = 0; i < ls; ++i) {
213 QChar const c = s[i].toUpper();
215 qp_->setFont(qsmallfont);
216 qp_->drawText(tmpx, y, c);
217 tmpx += qsmallfontm.width(c);
220 qp_->drawText(tmpx, y, c);
221 tmpx += qfontm.width(c);
227 void QLPainter::text(int x, int y, char_type const * s, size_t ls,
231 Encoding const * encoding = f.language()->encoding();
232 if (f.isSymbolFont())
233 encoding = encodings.symbol_encoding();
239 for (unsigned int i = 0; i < ls; ++i)
240 str[i] = QChar(encoding->ucs(s[i]));
242 //std::vector<boost::uint32_t> in(s, s + ls);
243 //std::vector<unsigned short> ucs2 = ucs4_to_ucs2(in);
244 std::vector<unsigned short> ucs2 = ucs4_to_ucs2(s, ls);
246 QString str = QString::fromUtf16(&ucs2[0]);
250 // HACK: QT3 refuses to show single compose characters
251 // Still needed with Qt4?
252 if (ls == 1 && str[0].unicode() >= 0x05b0 && str[0].unicode() <= 0x05c2)
256 if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
257 setQPainterPen(f.realColor());
258 qp_->setFont(theApp->fontLoader().get(f));
259 // We need to draw the text as LTR as we use our own bidi code.
260 qp_->setLayoutDirection(Qt::LeftToRight);
261 qp_->drawText(x, y, str);
263 smallCapsText(x, y, str, f);
266 if (f.underbar() == LyXFont::ON) {
267 underline(f, x, y, font_metrics::width(s, ls, f));
273 void QLPainter::drawPixmap(int x, int y, QPixmap const & pixmap)
275 qp_->drawPixmap(x, y, pixmap);
279 void QLPainter::drawImage(int x, int y, QImage const & image)
281 qp_->drawImage(x, y, image);
284 } // namespace frontend