2000-02-10 17:53:36 +00:00
|
|
|
// -*- C++ -*-
|
|
|
|
/* This file is part of
|
|
|
|
* ======================================================
|
|
|
|
*
|
|
|
|
* LyX, The Document Processor
|
|
|
|
*
|
|
|
|
* Copyright 1998-2000 The LyX Team
|
|
|
|
*
|
|
|
|
*======================================================*/
|
|
|
|
|
|
|
|
#include <config.h>
|
|
|
|
|
|
|
|
#ifdef __GNUG__
|
|
|
|
#pragma implementation
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#include <cmath>
|
|
|
|
|
|
|
|
#ifdef USE_STL_MEMORY
|
|
|
|
#include <memory>
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#include FORMS_H_LOCATION
|
|
|
|
#include "Painter.h"
|
|
|
|
#include "LString.h"
|
|
|
|
#include "debug.h"
|
|
|
|
#include "lyxfont.h"
|
|
|
|
#include "support/LAssert.h"
|
|
|
|
#include "support/lstrings.h"
|
|
|
|
|
|
|
|
Painter::Painter(WorkArea & wa)
|
|
|
|
: PainterBase(wa)
|
|
|
|
{
|
|
|
|
colormap = fl_state[fl_get_vclass()].colormap;
|
|
|
|
// Clear the GC cache
|
2000-02-14 22:14:48 +00:00
|
|
|
for (int i = 0; i <= LColor::ignore; ++i) {
|
2000-02-10 17:53:36 +00:00
|
|
|
colorGCcache[i] = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
Painter::~Painter() {
|
|
|
|
// Release all the registered GCs
|
2000-02-14 22:14:48 +00:00
|
|
|
for (int i = 0; i <= LColor::ignore; ++i) {
|
2000-02-10 17:53:36 +00:00
|
|
|
if (colorGCcache[i] != 0) {
|
|
|
|
XFreeGC(display, colorGCcache[i]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
// Iterate over the line cache and Free the GCs
|
2000-02-14 22:14:48 +00:00
|
|
|
for (LineGCCache::iterator lit = lineGCcache.begin();
|
|
|
|
lit != lineGCcache.end(); ++lit) {
|
2000-02-10 17:53:36 +00:00
|
|
|
XFreeGC(display, (*lit).second);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* Basic drawing routines */
|
|
|
|
|
|
|
|
extern bool Lgb_bug_find_hack;
|
|
|
|
|
2000-02-11 13:52:44 +00:00
|
|
|
PainterBase & Painter::point(int x, int y, LColor::color c)
|
2000-02-10 17:53:36 +00:00
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
if (!Lgb_bug_find_hack)
|
|
|
|
lyxerr << "point not called from "
|
|
|
|
"workarea::workhandler\n";
|
|
|
|
lyxerr.debug() << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
XDrawPoint(display, drawable, getGCForeground(c), x, y);
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-02-11 13:52:44 +00:00
|
|
|
PainterBase & Painter::line(int x1, int y1, int x2, int y2,
|
2000-02-10 17:53:36 +00:00
|
|
|
LColor::color col,
|
|
|
|
enum line_style ls,
|
|
|
|
enum line_width lw)
|
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
if (!Lgb_bug_find_hack)
|
|
|
|
lyxerr << "line not called from "
|
|
|
|
"workarea::workhandler\n";
|
|
|
|
lyxerr.debug() << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
XDrawLine(display, drawable,
|
|
|
|
getGCLinepars(ls, lw, col), x1, y1, x2, y2);
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-02-11 13:52:44 +00:00
|
|
|
PainterBase & Painter::lines(int const * xp, int const * yp, int np,
|
2000-02-10 17:53:36 +00:00
|
|
|
LColor::color col,
|
|
|
|
enum line_style ls,
|
|
|
|
enum line_width lw)
|
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
if (!Lgb_bug_find_hack)
|
|
|
|
lyxerr << "lines not called from "
|
|
|
|
"workarea::workhandler\n";
|
|
|
|
lyxerr.debug() << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifndef HAVE_AUTO_PTR
|
|
|
|
XPoint * points = new XPoint[np];
|
|
|
|
#else
|
|
|
|
auto_ptr<XPoint> points(new Xpoint[np]);
|
|
|
|
#endif
|
|
|
|
for (int i=0; i<np; ++i) {
|
|
|
|
points[i].x = xp[i];
|
|
|
|
points[i].y = yp[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
XDrawLines(display, drawable, getGCLinepars(ls, lw, col),
|
|
|
|
points, np, CoordModeOrigin);
|
|
|
|
|
|
|
|
#ifndef HAVE_AUTO_PTR
|
|
|
|
delete[] points;
|
|
|
|
#endif
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-02-11 13:52:44 +00:00
|
|
|
PainterBase & Painter::rectangle(int x, int y, int w, int h,
|
2000-02-10 17:53:36 +00:00
|
|
|
LColor::color col,
|
|
|
|
enum line_style ls,
|
|
|
|
enum line_width lw)
|
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
if (!Lgb_bug_find_hack)
|
|
|
|
lyxerr << "rectangle not called from "
|
|
|
|
"workarea::workhandler\n";
|
|
|
|
lyxerr << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
XDrawRectangle(display, drawable, getGCLinepars(ls, lw, col),
|
|
|
|
x, y, w, h);
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-02-11 13:52:44 +00:00
|
|
|
PainterBase & Painter::fillRectangle(int x, int y, int w, int h,
|
2000-02-10 17:53:36 +00:00
|
|
|
LColor::color col)
|
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
if (!Lgb_bug_find_hack)
|
|
|
|
lyxerr << "fillrectangle not called from "
|
|
|
|
"workarea::workhandler\n";
|
|
|
|
lyxerr << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
XFillRectangle(display, drawable, getGCForeground(col), x, y, w, h);
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-02-11 13:52:44 +00:00
|
|
|
PainterBase & Painter::fillPolygon(int const * xp, int const * yp, int np,
|
2000-02-10 17:53:36 +00:00
|
|
|
LColor::color col)
|
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
if (!Lgb_bug_find_hack)
|
|
|
|
lyxerr <<"fillpolygon not called from "
|
|
|
|
"workarea::workhandler\n";
|
|
|
|
lyxerr << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifndef HAVE_AUTO_PTR
|
|
|
|
XPoint * points = new XPoint[np];
|
|
|
|
#else
|
|
|
|
auto_ptr<XPoint> points(new XPoint[np]);
|
|
|
|
#endif
|
|
|
|
for (int i=0; i<np; ++i) {
|
|
|
|
points[i].x = xp[i];
|
|
|
|
points[i].y = yp[i];
|
|
|
|
}
|
|
|
|
|
|
|
|
XFillPolygon(display, drawable, getGCForeground(col), points, np,
|
|
|
|
Nonconvex, CoordModeOrigin);
|
|
|
|
#ifndef HAVE_AUTO_PTR
|
|
|
|
delete[] points;
|
|
|
|
#endif
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-02-11 13:52:44 +00:00
|
|
|
PainterBase & Painter::arc(int x, int y,
|
2000-02-10 17:53:36 +00:00
|
|
|
unsigned int w, unsigned int h,
|
|
|
|
int a1, int a2, LColor::color col)
|
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
if (!Lgb_bug_find_hack)
|
|
|
|
lyxerr << "arc not called from "
|
|
|
|
"workarea::workhandler\n";
|
|
|
|
lyxerr << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
XDrawArc(display, drawable, getGCForeground(col),
|
|
|
|
x, y, w, h, a1, a2);
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/// Draw lines from x1,y1 to x2,y2. They are arrays
|
2000-02-11 13:52:44 +00:00
|
|
|
PainterBase & Painter::segments(int const * x1, int const * y1,
|
2000-02-10 17:53:36 +00:00
|
|
|
int const * x2, int const * y2, int ns,
|
|
|
|
LColor::color col,
|
|
|
|
enum line_style ls, enum line_width lw)
|
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
if (!Lgb_bug_find_hack)
|
|
|
|
lyxerr << "segments not called from "
|
|
|
|
"workarea::workhandler\n";
|
|
|
|
lyxerr << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
#ifndef HAVE_AUTO_PTR
|
|
|
|
XSegment * s= new XSegment[ns];
|
|
|
|
#else
|
|
|
|
auto_ptr<XSegment> s(new XSegment[ns]);
|
|
|
|
#endif
|
|
|
|
for (int i=0; i<ns; ++i) {
|
|
|
|
s[i].x1 = x1[i];
|
|
|
|
s[i].y1 = y1[i];
|
|
|
|
s[i].x2 = x2[i];
|
|
|
|
s[i].y2 = y2[i];
|
|
|
|
}
|
|
|
|
XDrawSegments(display, drawable, getGCLinepars(ls, lw, col), s, ns);
|
|
|
|
|
|
|
|
#ifndef HAVE_AUTO_PTR
|
|
|
|
delete [] s;
|
|
|
|
#endif
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-02-11 16:56:34 +00:00
|
|
|
PainterBase & Painter::pixmap(int x, int y, int w, int h, Pixmap bitmap)
|
2000-02-10 17:53:36 +00:00
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
if (!Lgb_bug_find_hack)
|
|
|
|
lyxerr << "workAreaExpose not called from "
|
|
|
|
"workarea::workhandler\n";
|
|
|
|
lyxerr << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
XGCValues val;
|
|
|
|
val.function = GXcopy;
|
|
|
|
GC gc = XCreateGC(display, drawable,
|
|
|
|
GCFunction, &val);
|
|
|
|
XCopyArea(display, bitmap, drawable, gc,
|
|
|
|
0, 0, w, h, x, y);
|
|
|
|
XFreeGC(display, gc);
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-02-11 13:52:44 +00:00
|
|
|
PainterBase & Painter::text(int x, int y, string const & s, LyXFont const & f)
|
2000-02-10 17:53:36 +00:00
|
|
|
{
|
2000-02-14 22:14:48 +00:00
|
|
|
return text(x, y, s.c_str(), s.length(), f);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
PainterBase & Painter::text(int x, int y, char c, LyXFont const & f)
|
|
|
|
{
|
|
|
|
char s[2] = { c, '\0' };
|
|
|
|
return text(x, y, s, 1, f);
|
2000-02-10 17:53:36 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-02-11 13:52:44 +00:00
|
|
|
PainterBase & Painter::text(int x, int y, char const * s, int ls,
|
2000-02-10 17:53:36 +00:00
|
|
|
LyXFont const & f)
|
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
if (!Lgb_bug_find_hack)
|
|
|
|
lyxerr << "text not called from "
|
|
|
|
"workarea::workhandler\n";
|
|
|
|
lyxerr << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
GC gc = getGCForeground(f.realColor());
|
|
|
|
XSetFont(display, gc, f.getFontID());
|
|
|
|
XDrawString(display, drawable, gc, x, y, s, ls);
|
|
|
|
underline(f, x, y, this->width(s, ls, f));
|
|
|
|
return *this;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2000-02-14 22:14:48 +00:00
|
|
|
void Painter::underline(LyXFont const & f, int x, int y, int width)
|
2000-02-10 17:53:36 +00:00
|
|
|
{
|
|
|
|
// What about underbars?
|
|
|
|
if (f.underbar() == LyXFont::ON && f.latex() != LyXFont::ON) {
|
|
|
|
int below = f.maxDescent() / 2;
|
|
|
|
if (below < 2) below = 2;
|
|
|
|
int height = (f.maxDescent() / 4) - 1;
|
|
|
|
if (height < 0) height = 0;
|
|
|
|
fillRectangle(x, y + below, width, below + height, f.color());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// Gets GC according to color
|
|
|
|
// Uses caching
|
|
|
|
GC Painter::getGCForeground(LColor::color c)
|
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
lyxerr << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (colorGCcache[c] != 0) return colorGCcache[c];
|
|
|
|
|
|
|
|
XColor xcol, ccol;
|
|
|
|
string s = lcolor.getX11Name(c);
|
|
|
|
XGCValues val;
|
|
|
|
|
|
|
|
// Look up the RGB values for the color, and an approximate
|
|
|
|
// color that we can hope to get on this display.
|
|
|
|
if (XLookupColor(display, colormap, s.c_str(), &xcol, &ccol) == 0) {
|
|
|
|
lyxerr << _("LyX: Unknown X11 color ") << s
|
|
|
|
<< _(" for ") << lcolor.getGUIName(c) << '\n'
|
|
|
|
<< _(" Using black instead, sorry!.") << endl;
|
|
|
|
unsigned long bla = BlackPixel(display,
|
|
|
|
DefaultScreen(display));
|
|
|
|
val.foreground = bla;
|
|
|
|
// Try the exact RGB values first, then the approximate.
|
|
|
|
} else if (XAllocColor(display, colormap, &xcol) != 0) {
|
2000-02-14 22:14:48 +00:00
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
lyxerr << _("LyX: X11 color ") << s
|
|
|
|
<< _(" allocated for ")
|
|
|
|
<< lcolor.getGUIName(c) << endl;
|
|
|
|
}
|
2000-02-10 17:53:36 +00:00
|
|
|
val.foreground = xcol.pixel;
|
|
|
|
} else if (XAllocColor(display, colormap, &ccol)) {
|
|
|
|
lyxerr << _("LyX: Using approximated X11 color ") << s
|
|
|
|
<< _(" allocated for ")
|
|
|
|
<< lcolor.getGUIName(c) << endl;
|
|
|
|
val.foreground = xcol.pixel;
|
|
|
|
} else {
|
|
|
|
// Here we are traversing the current colormap to find
|
|
|
|
// the color closest to the one we want.
|
|
|
|
Visual * vi = DefaultVisual(display, DefaultScreen(display));
|
|
|
|
|
|
|
|
XColor * cmap = new XColor[vi->map_entries];
|
|
|
|
|
|
|
|
for(int i = 0; i < vi->map_entries; ++i) {
|
|
|
|
cmap[i].pixel = i;
|
|
|
|
}
|
|
|
|
XQueryColors(display, colormap, cmap, vi->map_entries);
|
|
|
|
|
|
|
|
// Walk through the cmap and look for close colors.
|
|
|
|
int closest_pixel = 0;
|
|
|
|
double closest_distance = 1e20; // we want to minimize this
|
|
|
|
double distance = 0;
|
|
|
|
for(int t = 0; t < vi->map_entries; ++t) {
|
|
|
|
// The Euclidean distance between two points in
|
|
|
|
// a three-dimensional space, the RGB color-cube,
|
|
|
|
// is used as the distance measurement between two
|
|
|
|
// colors.
|
|
|
|
|
|
|
|
// Since square-root is monotonous, we don't have to
|
|
|
|
// take the square-root to find the minimum, and thus
|
|
|
|
// we use the squared distance instead to be faster.
|
|
|
|
|
|
|
|
// If we want to get fancy, we could convert the RGB
|
|
|
|
// coordinates to a different color-cube, maybe HSV,
|
|
|
|
// but the RGB cube seems to work great. (Asger)
|
|
|
|
distance = pow(cmap[t].red - xcol.red, 2.0) +
|
|
|
|
pow(cmap[t].green - xcol.green, 2.0) +
|
|
|
|
pow(cmap[t].blue - xcol.blue, 2.0);
|
|
|
|
if (distance < closest_distance) {
|
|
|
|
closest_distance = distance;
|
|
|
|
closest_pixel = t;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
lyxerr << _("LyX: Couldn't allocate '") << s
|
|
|
|
<< _("' for ") << lcolor.getGUIName(c)
|
|
|
|
<< _(" with (r,g,b)=(")
|
|
|
|
<< xcol.red << "," << xcol.green << ","
|
|
|
|
<< xcol.blue << ").\n"
|
|
|
|
<< _(" Using closest allocated "
|
|
|
|
"color with (r,g,b)=(")
|
|
|
|
<< cmap[closest_pixel].red << ","
|
|
|
|
<< cmap[closest_pixel].green << ","
|
|
|
|
<< cmap[closest_pixel].blue << ") instead.\n"
|
|
|
|
<< "Pixel [" << closest_pixel << "] is used." << endl;
|
|
|
|
val.foreground = cmap[closest_pixel].pixel;
|
|
|
|
delete[] cmap;
|
|
|
|
}
|
|
|
|
|
|
|
|
val.function = GXcopy;
|
|
|
|
return colorGCcache[c] = XCreateGC(display, drawable,
|
|
|
|
GCForeground | GCFunction, &val);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// Gets GC for line
|
|
|
|
GC Painter::getGCLinepars(enum line_style ls,
|
|
|
|
enum line_width lw, LColor::color c)
|
|
|
|
{
|
|
|
|
if (lyxerr.debugging()) {
|
|
|
|
lyxerr << "Painter drawable: " << drawable << endl;
|
|
|
|
}
|
|
|
|
|
|
|
|
int index = lw + (ls << 1) + (c << 3);
|
|
|
|
|
|
|
|
if (lineGCcache.find(index) != lineGCcache.end())
|
|
|
|
return lineGCcache[index];
|
|
|
|
|
|
|
|
XGCValues val;
|
|
|
|
XGetGCValues(display, getGCForeground(c), GCForeground, &val);
|
|
|
|
|
|
|
|
switch (lw) {
|
|
|
|
case line_thin: val.line_width = 0; break;
|
|
|
|
case line_thick: val.line_width = 2; break;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (ls) {
|
|
|
|
case line_solid: val.line_style = LineSolid; break;
|
|
|
|
case line_onoffdash: val.line_style = LineOnOffDash; break;
|
|
|
|
case line_doubledash: val.line_style = LineDoubleDash; break;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
val.cap_style = CapRound;
|
|
|
|
val.join_style = JoinRound;
|
|
|
|
val.function = GXcopy;
|
|
|
|
|
|
|
|
return lineGCcache[index] =
|
|
|
|
XCreateGC(display, drawable,
|
|
|
|
GCForeground | GCLineStyle | GCLineWidth |
|
|
|
|
GCCapStyle | GCJoinStyle | GCFunction, &val);
|
|
|
|
}
|