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Try to make GPainter a bit more efficient

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@13230 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
John Spray 2006-02-13 19:36:10 +00:00
parent 61133c4b56
commit 72c40bc700
3 changed files with 48 additions and 30 deletions
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2
src/frontends/gtk/ChangeLog
View File

@ -6,6 +6,8 @@
mangling some more complicated font names.
* lyx_gui.C: use Gtk::Main instead of while() loop:
fix eating CPU even when idle
* GPainter.[Ch]: some futile attempts to make painting
faster by diminishing function overhead.
2006-02-12 John Spray <spray@lyx.org>
* GMenubar.C: assume backend strings in latin1 (bug 1954)

63
src/frontends/gtk/GPainter.C
View File

@ -55,7 +55,7 @@ namespace lyx {
namespace frontend {
GPainter::GPainter(GWorkArea & xwa)
: Painter(), owner_(xwa)
: Painter(), owner_(xwa), currentcolor_(LColor::magenta)
{
}
@ -72,15 +72,25 @@ int GPainter::paperHeight() const
}
void GPainter::setForeground(Glib::RefPtr<Gdk::GC> gc, LColor_color clr)
inline void GPainter::setForeground(LColor_color clr)
{
Gdk::Color * gclr = owner_.getColorHandler().getGdkColor(clr);
gc->set_foreground(*gclr);
if (clr != currentcolor_) {
gc_->set_foreground(*(colorhandler_->getGdkColor(clr)));
currentcolor_ = clr;
}
}
void GPainter::setLineParam(Glib::RefPtr<Gdk::GC> gc,
line_style ls, line_width lw)
void GPainter::start()
{
pixmap_ = owner_.getPixmap();
colorhandler_ = &(owner_.getColorHandler());
gc_ = owner_.getGC();
gc_->set_foreground(*(colorhandler_->getGdkColor(currentcolor_)));
}
inline void GPainter::setLineParam(line_style ls, line_width lw)
{
int width = 0;
switch (lw) {
@ -101,15 +111,15 @@ void GPainter::setLineParam(Glib::RefPtr<Gdk::GC> gc,
style = Gdk::LINE_ON_OFF_DASH;
break;
}
gc->set_line_attributes(width, style,
gc_->set_line_attributes(width, style,
Gdk::CAP_NOT_LAST, Gdk::JOIN_MITER);
}
void GPainter::point(int x, int y, LColor_color c)
{
setForeground(owner_.getGC(), c);
owner_.getPixmap()->draw_point(owner_.getGC(), x, y);
setForeground(c);
pixmap_->draw_point(gc_, x, y);
}
@ -119,9 +129,9 @@ void GPainter::line(int x1, int y1,
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);
setForeground(col);
setLineParam(ls, lw);
pixmap_->draw_line(gc_, x1, y1, x2, y2);
}
@ -130,15 +140,15 @@ void GPainter::lines(int const * xp, int const * yp, int np,
line_style ls,
line_width lw)
{
setForeground(owner_.getGC(), col);
setLineParam(owner_.getGC(), ls, lw);
setForeground(col);
setLineParam(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);
pixmap_->draw_lines(gc_, points);
}
@ -147,39 +157,39 @@ void GPainter::rectangle(int x, int y, int w, int h,
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);
setForeground(col);
setLineParam(ls, lw);
pixmap_->draw_rectangle(gc_, false, x, y, w, h);
}
void 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);
setForeground(col);
pixmap_->draw_rectangle(gc_, true, x, y, w, h);
}
void GPainter::fillPolygon(int const * xp, int const * yp,
int np, LColor_color col)
{
setForeground(owner_.getGC(), col);
setForeground(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);
pixmap_->draw_polygon(gc_, true, points);
}
void 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(),
setForeground(col);
pixmap_->draw_arc(gc_,
false, x, y, w, h, a1, a2);
}
@ -190,9 +200,9 @@ void GPainter::image(int x, int y, int w, int h,
graphics::LyXGdkImage const & image =
static_cast<graphics::LyXGdkImage const &>(i);
Glib::RefPtr<Gdk::Pixbuf> const & pixbuf = image.pixbuf();
Glib::RefPtr<Gdk::Pixmap> pixmap = owner_.getPixmap();
Glib::RefPtr<Gdk::Pixmap> pixmap = pixmap_;
Glib::RefPtr<Gdk::GC> gc = owner_.getGC();
Glib::RefPtr<Gdk::GC> gc = gc_;
pixmap->draw_pixbuf (gc, pixbuf, 0, 0, x, y, w, h,
Gdk::RGB_DITHER_NONE, 0, 0);
}
@ -226,7 +236,6 @@ void 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,

13
src/frontends/gtk/GPainter.h
View File

@ -26,6 +26,7 @@ namespace lyx {
namespace frontend {
class GWorkArea;
class ColorHandler;
/**
* GPainter - a painter implementation for Gtkmm
@ -39,9 +40,8 @@ public:
/// return the height of the work area in pixels
virtual int paperHeight() const;
void setForeground(Glib::RefPtr<Gdk::GC> gc, LColor_color clr);
void setLineParam(Glib::RefPtr<Gdk::GC> gc,
line_style ls, line_width lw);
inline void setForeground(LColor_color clr);
inline void setLineParam(line_style ls, line_width lw);
XftColor * getXftColor(LColor_color clr);
/// draw a line from point to point
virtual void line(
@ -126,9 +126,16 @@ public:
XChar2b const * str, size_t l,
LyXFont const & f);
void start();
private:
/// our owner who we paint upon
GWorkArea & owner_;
Glib::RefPtr<Gdk::GC> gc_;
Glib::RefPtr<Gdk::Pixmap> pixmap_;
ColorHandler *colorhandler_;
LColor_color currentcolor_;
};
} // namespace frontend