lyx_mirror/src/frontends/qt2/QLPainter.C
Lars Gullik Bjønnes 99d1627a47 dont use pragma impementation and interface anymore
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6138 a592a061-630c-0410-9148-cb99ea01b6c8
2003-02-13 16:53:15 +00:00

290 lines
5.7 KiB
C

/**
* \file QLPainter.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author John Levon
*
* Full author contact details are available in file CREDITS
*/
#include <config.h>
#include "font_metrics.h"
#include "support/lstrings.h"
#include "lyxrc.h"
#include "debug.h"
#include "LyXView.h"
#include "encoding.h"
#include "language.h"
#include "QWorkArea.h"
#include "qfont_loader.h"
#include "QLPainter.h"
#include "QLImage.h"
#include "qt_helpers.h"
#include <boost/scoped_array.hpp>
#include <qpainter.h>
#include <qbrush.h>
#include <qcolor.h>
#include <iostream>
using std::endl;
QLPainter::QLPainter(QWorkArea & qwa)
: Painter(), owner_(qwa), paint_check_(0)
{
qp_.reset(new QPainter);
}
void QLPainter::start()
{
if (++paint_check_ == 1)
qp_->begin(owner_.getPixmap());
}
void QLPainter::end()
{
if (paint_check_ == 0) {
lyxerr << "ended painting whilst not painting ??" << endl;
} else if (--paint_check_ == 0) {
qp_->end();
}
}
int QLPainter::paperWidth() const
{
return owner_.workWidth();
}
int QLPainter::paperHeight() const
{
return owner_.workHeight();
}
QPainter & QLPainter::setPen(LColor::color c,
Painter::line_style ls, Painter::line_width lw)
{
QPen pen = qp_->pen();
pen.setColor(toqstr(lcolor.getX11Name(c)));
switch (ls) {
case line_solid: pen.setStyle(QPen::SolidLine); break;
case line_onoffdash: pen.setStyle(QPen::DotLine); break;
}
switch (lw) {
case line_thin: pen.setWidth(0); break;
case line_thick: pen.setWidth(3); break;
}
qp_->setPen(pen);
return *qp_;
}
Painter & QLPainter::point(int x, int y, LColor::color c)
{
setPen(c).drawPoint(x, y);
return *this;
}
Painter & QLPainter::line(int x1, int y1,
int x2, int y2,
LColor::color col,
line_style ls,
line_width lw)
{
setPen(col, ls, lw).drawLine(x1, y1, x2, y2);
return *this;
}
Painter & QLPainter::lines(int const * xp, int const * yp,
int np,
LColor::color col,
line_style ls,
line_width lw)
{
// FIXME ?
// Must use new as np is not known at compile time.
boost::scoped_array<QCOORD> points(new QCOORD[np * 2]);
for (int i = 0, j = 0; i < np; ++i) {
points[j++] = xp[i];
points[j++] = yp[i];
}
setPen(col, ls, lw).drawPolyline(QPointArray(np, points.get()));
return *this;
}
Painter & QLPainter::rectangle(int x, int y,
int w, int h,
LColor::color col,
line_style ls,
line_width lw)
{
//lyxerr << "rectangle " << x << ',' << y << ' '
// << w << ',' << h << endl;
setPen(col, ls, lw).drawRect(x, y, w, h);
return *this;
}
Painter & QLPainter::fillRectangle(int x, int y,
int w, int h,
LColor::color col)
{
//lyxerr << "fillRectangle " << x << ',' << y << ' '
// << w << ',' << h << endl;
qp_->fillRect(x, y, w, h, QColor(toqstr(lcolor.getX11Name(col))));
return *this;
}
Painter & QLPainter::fillPolygon(int const * xp, int const * yp,
int np, LColor::color col)
{
// Must use new as np is not known at compile time.
boost::scoped_array<QCOORD> points(new QCOORD[np * 2]);
//if (1) return *this;
for (int i = 0, j = 0; i < np; ++i) {
points[j++] = xp[i];
points[j++] = yp[i];
}
setPen(col);
qp_->setBrush(toqstr(lcolor.getX11Name(col)));
qp_->drawPolygon(QPointArray(np, points.get()));
qp_->setBrush(Qt::NoBrush);
return *this;
}
Painter & QLPainter::arc(int x, int y,
unsigned int w, unsigned int h,
int a1, int a2, LColor::color col)
{
lyxerr[Debug::GUI] << "arc: " << x << ',' << y
<< ' ' << w << ',' << h << ", angles "
<< a1 << " - " << a2 << endl;
// LyX usings 1/64ths degree, Qt usings 1/16th
setPen(col).drawArc(x, y, w, h, a1 / 4, a2 / 4);
return *this;
}
Painter & QLPainter::image(int x, int y,
int w, int h,
grfx::Image const & i)
{
qp_->drawPixmap(x, y, static_cast<grfx::QLImage const &>(i).qpixmap(), 0, 0, w, h);
return *this;
}
Painter & QLPainter::text(int x, int y,
string const & s, LyXFont const & f)
{
return text(x, y, s.data(), s.length(), f);
}
Painter & QLPainter::text(int x, int y,
char c, LyXFont const & f)
{
char s[2] = { c, '\0' };
return text(x, y, s, 1, f);
}
void QLPainter::smallCapsText(int x, int y,
QString const & s, LyXFont const & f)
{
LyXFont smallfont(f);
smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
QFont const & qfont = fontloader.get(f);
QFont const & qsmallfont = fontloader.get(smallfont);
QFontMetrics const & qfontm = QFontMetrics(qfont);
QFontMetrics const & qsmallfontm = QFontMetrics(qsmallfont);
int tmpx = x;
size_t ls = s.length();
for (size_t i = 0; i < ls; ++i) {
QChar const c = s[i].upper();
if (c != s[i]) {
qp_->setFont(qsmallfont);
qp_->drawText(tmpx, y, c);
tmpx += qsmallfontm.width(c);
} else {
qp_->setFont(qfont);
qp_->drawText(tmpx, y, c);
tmpx += qfontm.width(c);
}
}
}
Painter & QLPainter::text(int x, int y,
char const * s, size_t ls,
LyXFont const & f)
{
setPen(f.realColor());
Encoding const * encoding = f.language()->encoding();
if (f.isSymbolFont())
encoding = encodings.symbol_encoding();
QString str;
#if QT_VERSION >= 300
str.setLength(ls);
for (size_t i = 0; i < ls; ++i)
str[i] = QChar(encoding->ucs(s[i]));
// HACK: QT3 refuses to show single compose characters
if (ls == 1 && str[0].unicode() >= 0x05b0 && str[0].unicode() <= 0x05c2)
str = ' ' + str;
#else
for (size_t i = 0; i < ls; ++i)
str += QChar(encoding->ucs(s[i]));
#endif
if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
qp_->setFont(fontloader.get(f));
#if QT_VERSION >= 300
// We need to draw the text as LTR as we use our own bidi
// code.
qp_->drawText(x, y, str, -1, QPainter::LTR);
#else
qp_->drawText(x, y, str);
#endif
} else {
smallCapsText(x, y, str, f);
}
if (f.underbar() == LyXFont::ON) {
underline(f, x, y, font_metrics::width(s, ls, f));
}
return *this;
}