lyx_mirror/src/frontends/gtk/GPainter.C
Angus Leeming 236ea81bc5 Replace LString.h with support/std_string.h,
Lsstream.h with support/std_sstream.h,
support/LIstream.h with support/std_istream.h,
support/LOstream.h with support/std_ostream.h.


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7685 a592a061-630c-0410-9148-cb99ea01b6c8
2003-09-05 17:23:11 +00:00

273 lines
5.8 KiB
C

/**
* \file GPainter.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Huang Ying
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include <gtkmm.h>
#include "GPainter.h"
#include "support/std_string.h"
#include "debug.h"
#include "GWorkArea.h"
#include "lyxrc.h"
#include "encoding.h"
#include "language.h"
#include "xftFontLoader.h"
#include "xformsImage.h"
#include "frontends/font_metrics.h"
#include "codeConvert.h"
#include "support/LAssert.h"
#include "support/lstrings.h"
#include <boost/scoped_array.hpp>
#include <X11/Xft/Xft.h>
#include <cmath>
GPainter::GPainter(GWorkArea & xwa)
: Painter(), owner_(xwa)
{
}
int GPainter::paperWidth() const
{
return owner_.workWidth();
}
int GPainter::paperHeight() const
{
return owner_.workHeight();
}
void GPainter::setForeground(Glib::RefPtr<Gdk::GC> gc, LColor::color clr)
{
Gdk::Color * gclr = owner_.getColorHandler().getGdkColor(clr);
gc->set_foreground(*gclr);
}
void GPainter::setLineParam(Glib::RefPtr<Gdk::GC> gc,
line_style ls, line_width lw)
{
int width;
Gdk::LineStyle style;
switch (lw) {
case Painter::line_thin:
width = 0;
break;
case Painter::line_thick:
width = 2;
break;
}
switch (ls) {
case Painter::line_solid:
style = Gdk::LINE_SOLID;
break;
case Painter::line_onoffdash:
style = Gdk::LINE_ON_OFF_DASH;
break;
}
gc->set_line_attributes(width, style,
Gdk::CAP_NOT_LAST, Gdk::JOIN_MITER);
}
Painter & GPainter::point(int x, int y, LColor::color c)
{
setForeground(owner_.getGC(), c);
owner_.getPixmap()->draw_point(owner_.getGC(), x, y);
return *this;
}
Painter & GPainter::line(int x1, int y1,
int x2, int y2,
LColor::color col,
line_style ls,
line_width lw)
{
setForeground(owner_.getGC(), col);
setLineParam(owner_.getGC(), ls, lw);
owner_.getPixmap()->draw_line(owner_.getGC(), x1, y1, x2, y2);
return *this;
}
Painter & GPainter::lines(int const * xp, int const * yp,
int np,
LColor::color col,
line_style ls,
line_width lw)
{
setForeground(owner_.getGC(), col);
setLineParam(owner_.getGC(), ls, lw);
std::vector<Gdk::Point> points(np);
for (int i = 0; i < np; ++i) {
points[i].set_x(xp[i]);
points[i].set_y(yp[i]);
}
owner_.getPixmap()->draw_lines(owner_.getGC(), points);
return *this;
}
Painter & GPainter::rectangle(int x, int y,
int w, int h,
LColor::color col,
line_style ls,
line_width lw)
{
setForeground(owner_.getGC(), col);
setLineParam(owner_.getGC(), ls, lw);
owner_.getPixmap()->draw_rectangle(owner_.getGC(), false, x, y, w, h);
return *this;
}
Painter & GPainter::fillRectangle(int x, int y,
int w, int h,
LColor::color col)
{
setForeground(owner_.getGC(), col);
owner_.getPixmap()->draw_rectangle(owner_.getGC(), true, x, y, w, h);
return *this;
}
Painter & GPainter::fillPolygon(int const * xp, int const * yp,
int np, LColor::color col)
{
setForeground(owner_.getGC(), col);
std::vector<Gdk::Point> points(np);
for (int i = 0; i < np; ++i) {
points[i].set_x(xp[i]);
points[i].set_y(yp[i]);
}
owner_.getPixmap()->draw_polygon(owner_.getGC(), true, points);
return *this;
}
Painter & GPainter::arc(int x, int y,
unsigned int w, unsigned int h,
int a1, int a2, LColor::color col)
{
setForeground(owner_.getGC(), col);
owner_.getPixmap()->draw_arc(owner_.getGC(),
false, x, y, w, h, a1, a2);
return *this;
}
Painter & GPainter::image(int x, int y,
int w, int h,
lyx::graphics::Image const & i)
{
lyx::graphics::xformsImage const & image =
static_cast<lyx::graphics::xformsImage const &>(i);
Pixmap pixmap = GDK_PIXMAP_XID(owner_.getPixmap()->gobj());
GC gc = GDK_GC_XGC(owner_.getGC()->gobj());
XCopyArea(owner_.getDisplay(), image.getPixmap(), pixmap,
gc, 0, 0, w, h, x, y);
return *this;
}
Painter & GPainter::text(int x, int y,
string const & s, LyXFont const & f)
{
size_t size = s.length() + 1;
wchar_t * wcs = (wchar_t *) alloca(size * sizeof(wchar_t));
size = mbstowcs(wcs, s.c_str(), size);
return text(x, y, wcs, size, f);
}
Painter & GPainter::text(int x, int y,
char c, LyXFont const & f)
{
char s[2] = { c, '\0' };
return text(x, y, s, 1, f);
}
inline XftFont * getXftFont(LyXFont const & f)
{
return fontLoader.load(f.family(), f.series(),
f.realShape(), f.size());
}
namespace font_metrics
{
int width(wchar_t const *s, size_t n, LyXFont const & f);
}
Painter & GPainter::text(int x, int y, wchar_t const * s, int ls,
LyXFont const & f)
{
XftFont * font = getXftFont(f);
XftColor * xftClr = owner_.getColorHandler().
getXftColor(f.realColor());
// getXftColor(f.realColor());
XftDraw * draw = owner_.getXftDraw();
if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
XftDrawString32(draw, xftClr, font, x, y,
wcsToFcChar32StrFast(s), ls);
} else {
LyXFont smallfont(f);
smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
XftFont * fontS = getXftFont(smallfont);
wchar_t c;
int tmpx = x;
for(int i = 0; i < ls; ++i) {
c = lyx::support::uppercase(s[i]);
if(c != s[i]) {
XftDrawString32(draw, xftClr, fontS, tmpx, y,
wcsToFcChar32StrFast(&c), 1);
tmpx += font_metrics::width(c, smallfont);
} else {
XftDrawString32(draw, xftClr, font, tmpx, y,
wcsToFcChar32StrFast(&c), 1);
tmpx += font_metrics::width(c, f);
}
}
}
if (f.underbar() == LyXFont::ON)
underline(f, x, y, font_metrics::width(s, ls, f));
return *this;
}
Painter & GPainter::text(int x, int y,
char const * s, size_t ls,
LyXFont const & f)
{
boost::scoped_array<wchar_t> wcs(new wchar_t[ls + 1]);
size_t len;
if (fontLoader.isSpecial(f)) {
unsigned char const * us =
reinterpret_cast<unsigned char const *>(s);
len = ls;
std::copy(us, us + ls, wcs.get());
} else
len = mbstowcs(wcs.get(), s, ls + 1);
return text(x, y, wcs.get(), len, f);
}