ref: 6e68d605ee9903626b64221607a4577c2c92c6bc
dir: /DoConfig/fltk/src/Fl_x.cxx/
//
// "$Id$"
//
// X specific code for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2016 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
#ifdef WIN32
//# include "Fl_win32.cxx"
#elif defined(__APPLE__)
//# include "Fl_mac.cxx" // now Fl_cocoa.mm
#elif !defined(FL_DOXYGEN)
# define CONSOLIDATE_MOTION 1
/**** Define this if your keyboard lacks a backspace key... ****/
/* #define BACKSPACE_HACK 1 */
# include <config.h>
# include <FL/Fl.H>
# include <FL/x.H>
# include <FL/Fl_Window.H>
# include <FL/fl_utf8.h>
# include <FL/Fl_Tooltip.H>
# include <FL/fl_draw.H>
# include <FL/Fl_Paged_Device.H>
# include <FL/Fl_Shared_Image.H>
# include <FL/fl_ask.H>
# include <FL/filename.H>
# include <stdio.h>
# include <stdlib.h>
# include "flstring.h"
# include <unistd.h>
# include <time.h>
# include <sys/time.h>
# include <X11/Xmd.h>
# include <X11/Xlocale.h>
# include <X11/Xlib.h>
# include <X11/keysym.h>
# include "Xutf8.h"
#define USE_XRANDR (HAVE_DLSYM && HAVE_DLFCN_H) // means attempt to dynamically load libXrandr.so
#if USE_XRANDR
#include <dlfcn.h>
#define RRScreenChangeNotifyMask (1L << 0) // from X11/extensions/Xrandr.h
#define RRScreenChangeNotify 0 // from X11/extensions/Xrandr.h
typedef int (*XRRUpdateConfiguration_type)(XEvent *event);
static XRRUpdateConfiguration_type XRRUpdateConfiguration_f;
static int randrEventBase; // base of RandR-defined events
#endif
# if HAVE_XFIXES
# include <X11/extensions/Xfixes.h>
static int xfixes_event_base = 0;
static bool have_xfixes = false;
# endif
# include <X11/cursorfont.h>
# if HAVE_XCURSOR
# include <X11/Xcursor/Xcursor.h>
# endif
# if HAVE_XRENDER
# include <X11/extensions/Xrender.h>
# endif
////////////////////////////////////////////////////////////////
// interface to poll/select call:
# if USE_POLL
# include <poll.h>
static pollfd *pollfds = 0;
# else
# if HAVE_SYS_SELECT_H
# include <sys/select.h>
# endif /* HAVE_SYS_SELECT_H */
// The following #define is only needed for HP-UX 9.x and earlier:
//#define select(a,b,c,d,e) select((a),(int *)(b),(int *)(c),(int *)(d),(e))
static fd_set fdsets[3];
static int maxfd;
# define POLLIN 1
# define POLLOUT 4
# define POLLERR 8
# endif /* USE_POLL */
static int nfds = 0;
static int fd_array_size = 0;
struct FD {
# if !USE_POLL
int fd;
short events;
# endif
void (*cb)(int, void*);
void* arg;
};
static FD *fd = 0;
void Fl::add_fd(int n, int events, void (*cb)(int, void*), void *v) {
remove_fd(n,events);
int i = nfds++;
if (i >= fd_array_size) {
FD *temp;
fd_array_size = 2*fd_array_size+1;
if (!fd) temp = (FD*)malloc(fd_array_size*sizeof(FD));
else temp = (FD*)realloc(fd, fd_array_size*sizeof(FD));
if (!temp) return;
fd = temp;
# if USE_POLL
pollfd *tpoll;
if (!pollfds) tpoll = (pollfd*)malloc(fd_array_size*sizeof(pollfd));
else tpoll = (pollfd*)realloc(pollfds, fd_array_size*sizeof(pollfd));
if (!tpoll) return;
pollfds = tpoll;
# endif
}
fd[i].cb = cb;
fd[i].arg = v;
# if USE_POLL
pollfds[i].fd = n;
pollfds[i].events = events;
# else
fd[i].fd = n;
fd[i].events = events;
if (events & POLLIN) FD_SET(n, &fdsets[0]);
if (events & POLLOUT) FD_SET(n, &fdsets[1]);
if (events & POLLERR) FD_SET(n, &fdsets[2]);
if (n > maxfd) maxfd = n;
# endif
}
void Fl::add_fd(int n, void (*cb)(int, void*), void* v) {
Fl::add_fd(n, POLLIN, cb, v);
}
void Fl::remove_fd(int n, int events) {
int i,j;
# if !USE_POLL
maxfd = -1; // recalculate maxfd on the fly
# endif
for (i=j=0; i<nfds; i++) {
# if USE_POLL
if (pollfds[i].fd == n) {
int e = pollfds[i].events & ~events;
if (!e) continue; // if no events left, delete this fd
pollfds[j].events = e;
}
# else
if (fd[i].fd == n) {
int e = fd[i].events & ~events;
if (!e) continue; // if no events left, delete this fd
fd[i].events = e;
}
if (fd[i].fd > maxfd) maxfd = fd[i].fd;
# endif
// move it down in the array if necessary:
if (j<i) {
fd[j] = fd[i];
# if USE_POLL
pollfds[j] = pollfds[i];
# endif
}
j++;
}
nfds = j;
# if !USE_POLL
if (events & POLLIN) FD_CLR(n, &fdsets[0]);
if (events & POLLOUT) FD_CLR(n, &fdsets[1]);
if (events & POLLERR) FD_CLR(n, &fdsets[2]);
# endif
}
void Fl::remove_fd(int n) {
remove_fd(n, -1);
}
extern int fl_send_system_handlers(void *e);
#if CONSOLIDATE_MOTION
static Fl_Window* send_motion;
extern Fl_Window* fl_xmousewin;
#endif
static bool in_a_window; // true if in any of our windows, even destroyed ones
static void do_queued_events() {
in_a_window = true;
while (XEventsQueued(fl_display,QueuedAfterReading)) {
XEvent xevent;
XNextEvent(fl_display, &xevent);
if (fl_send_system_handlers(&xevent))
continue;
fl_handle(xevent);
}
// we send FL_LEAVE only if the mouse did not enter some other window:
if (!in_a_window) Fl::handle(FL_LEAVE, 0);
#if CONSOLIDATE_MOTION
else if (send_motion == fl_xmousewin) {
send_motion = 0;
Fl::handle(FL_MOVE, fl_xmousewin);
}
#endif
}
// these pointers are set by the Fl::lock() function:
static void nothing() {}
void (*fl_lock_function)() = nothing;
void (*fl_unlock_function)() = nothing;
// This is never called with time_to_wait < 0.0:
// It should return negative on error, 0 if nothing happens before
// timeout, and >0 if any callbacks were done.
int fl_wait(double time_to_wait) {
// OpenGL and other broken libraries call XEventsQueued
// unnecessarily and thus cause the file descriptor to not be ready,
// so we must check for already-read events:
if (fl_display && XQLength(fl_display)) {do_queued_events(); return 1;}
# if !USE_POLL
fd_set fdt[3];
fdt[0] = fdsets[0];
fdt[1] = fdsets[1];
fdt[2] = fdsets[2];
# endif
int n;
fl_unlock_function();
if (time_to_wait < 2147483.648) {
# if USE_POLL
n = ::poll(pollfds, nfds, int(time_to_wait*1000 + .5));
# else
timeval t;
t.tv_sec = int(time_to_wait);
t.tv_usec = int(1000000 * (time_to_wait-t.tv_sec));
n = ::select(maxfd+1,&fdt[0],&fdt[1],&fdt[2],&t);
# endif
} else {
# if USE_POLL
n = ::poll(pollfds, nfds, -1);
# else
n = ::select(maxfd+1,&fdt[0],&fdt[1],&fdt[2],0);
# endif
}
fl_lock_function();
if (n > 0) {
for (int i=0; i<nfds; i++) {
# if USE_POLL
if (pollfds[i].revents) fd[i].cb(pollfds[i].fd, fd[i].arg);
# else
int f = fd[i].fd;
short revents = 0;
if (FD_ISSET(f,&fdt[0])) revents |= POLLIN;
if (FD_ISSET(f,&fdt[1])) revents |= POLLOUT;
if (FD_ISSET(f,&fdt[2])) revents |= POLLERR;
if (fd[i].events & revents) fd[i].cb(f, fd[i].arg);
# endif
}
}
return n;
}
// fl_ready() is just like fl_wait(0.0) except no callbacks are done:
int fl_ready() {
if (XQLength(fl_display)) return 1;
if (!nfds) return 0; // nothing to select or poll
# if USE_POLL
return ::poll(pollfds, nfds, 0);
# else
timeval t;
t.tv_sec = 0;
t.tv_usec = 0;
fd_set fdt[3];
fdt[0] = fdsets[0];
fdt[1] = fdsets[1];
fdt[2] = fdsets[2];
return ::select(maxfd+1,&fdt[0],&fdt[1],&fdt[2],&t);
# endif
}
// replace \r\n by \n
static void convert_crlf(unsigned char *string, long& len) {
unsigned char *a, *b;
a = b = string;
while (*a) {
if (*a == '\r' && a[1] == '\n') { a++; len--; }
else *b++ = *a++;
}
*b = 0;
}
////////////////////////////////////////////////////////////////
Display *fl_display;
Window fl_message_window = 0;
int fl_screen;
XVisualInfo *fl_visual;
Colormap fl_colormap;
static XIM fl_xim_im = 0;
XIC fl_xim_ic = 0;
static Window fl_xim_win = 0;
static char fl_is_over_the_spot = 0;
static XRectangle status_area;
static Atom WM_DELETE_WINDOW;
static Atom WM_PROTOCOLS;
static Atom fl_MOTIF_WM_HINTS;
static Atom TARGETS;
static Atom CLIPBOARD;
static Atom TIMESTAMP;
static Atom PRIMARY_TIMESTAMP;
static Atom CLIPBOARD_TIMESTAMP;
Atom fl_XdndAware;
Atom fl_XdndSelection;
Atom fl_XdndEnter;
Atom fl_XdndTypeList;
Atom fl_XdndPosition;
Atom fl_XdndLeave;
Atom fl_XdndDrop;
Atom fl_XdndStatus;
Atom fl_XdndActionCopy;
Atom fl_XdndFinished;
//Atom fl_XdndProxy;
Atom fl_XdndURIList;
static Atom fl_Xatextplainutf;
static Atom fl_Xatextplainutf2; // STR#2930
static Atom fl_Xatextplain;
static Atom fl_XaText;
static Atom fl_XaCompoundText;
Atom fl_XaUtf8String;
static Atom fl_XaTextUriList;
static Atom fl_XaImageBmp;
static Atom fl_XaImagePNG;
static Atom fl_INCR;
static Atom fl_NET_WM_PID;
static Atom fl_NET_WM_NAME; // utf8 aware window label
static Atom fl_NET_WM_ICON_NAME; // utf8 aware window icon name
static Atom fl_NET_SUPPORTING_WM_CHECK;
static Atom fl_NET_WM_STATE;
static Atom fl_NET_WM_STATE_FULLSCREEN;
static Atom fl_NET_WM_FULLSCREEN_MONITORS;
static Atom fl_NET_WORKAREA;
static Atom fl_NET_WM_ICON;
static Atom fl_NET_ACTIVE_WINDOW;
/*
X defines 32-bit-entities to have a format value of max. 32,
although sizeof(atom) can be 8 (64 bits) on a 64-bit OS.
See also fl_open_display() for sizeof(atom) < 4.
Used for XChangeProperty (see STR #2419).
*/
static int atom_bits = 32;
static void fd_callback(int,void *) {
do_queued_events();
}
extern "C" {
static int io_error_handler(Display*) {
Fl::fatal("X I/O error");
return 0;
}
static int xerror_handler(Display* d, XErrorEvent* e) {
char buf1[128], buf2[128];
sprintf(buf1, "XRequest.%d", e->request_code);
XGetErrorDatabaseText(d,"",buf1,buf1,buf2,128);
XGetErrorText(d, e->error_code, buf1, 128);
Fl::warning("%s: %s 0x%lx", buf2, buf1, e->resourceid);
return 0;
}
}
extern char *fl_get_font_xfld(int fnum, int size);
static void fl_new_ic()
{
XVaNestedList preedit_attr = NULL;
XVaNestedList status_attr = NULL;
static XFontSet fs = NULL;
char *fnt;
char **missing_list = 0;
int missing_count = 0;
char *def_string;
static XRectangle spot;
int predit = 0;
int sarea = 0;
XIMStyles* xim_styles = NULL;
#if USE_XFT
#if defined(__GNUC__)
// FIXME: warning XFT support here
#endif /*__GNUC__*/
if (!fs) {
fnt = (char*)"-misc-fixed-*";
fs = XCreateFontSet(fl_display, fnt, &missing_list,
&missing_count, &def_string);
}
#else
if (!fs) {
bool must_free_fnt = true;
fnt = fl_get_font_xfld(0, 14);
if (!fnt) {fnt = (char*)"-misc-fixed-*";must_free_fnt=false;}
fs = XCreateFontSet(fl_display, fnt, &missing_list,
&missing_count, &def_string);
if (must_free_fnt) free(fnt);
}
#endif
if (missing_list) XFreeStringList(missing_list);
preedit_attr = XVaCreateNestedList(0,
XNSpotLocation, &spot,
XNFontSet, fs, NULL);
status_attr = XVaCreateNestedList(0,
XNAreaNeeded, &status_area,
XNFontSet, fs, NULL);
if (!XGetIMValues(fl_xim_im, XNQueryInputStyle,
&xim_styles, NULL, NULL)) {
int i;
XIMStyle *style;
for (i = 0, style = xim_styles->supported_styles;
i < xim_styles->count_styles; i++, style++) {
if (*style == (XIMPreeditPosition | XIMStatusArea)) {
sarea = 1;
predit = 1;
} else if (*style == (XIMPreeditPosition | XIMStatusNothing)) {
predit = 1;
}
}
}
XFree(xim_styles);
if (sarea) {
fl_xim_ic = XCreateIC(fl_xim_im,
XNInputStyle, (XIMPreeditPosition | XIMStatusArea),
XNPreeditAttributes, preedit_attr,
XNStatusAttributes, status_attr,
NULL);
}
if (!fl_xim_ic && predit) {
fl_xim_ic = XCreateIC(fl_xim_im,
XNInputStyle, (XIMPreeditPosition | XIMStatusNothing),
XNPreeditAttributes, preedit_attr,
NULL);
}
XFree(preedit_attr);
XFree(status_attr);
if (!fl_xim_ic) {
fl_is_over_the_spot = 0;
fl_xim_ic = XCreateIC(fl_xim_im,
XNInputStyle, (XIMPreeditNothing | XIMStatusNothing),
NULL);
} else {
fl_is_over_the_spot = 1;
XVaNestedList status_attr = NULL;
status_attr = XVaCreateNestedList(0, XNAreaNeeded, &status_area, NULL);
XGetICValues(fl_xim_ic, XNStatusAttributes, status_attr, NULL);
XFree(status_attr);
}
}
static XRectangle spot;
static int spotf = -1;
static int spots = -1;
void fl_reset_spot(void)
{
spot.x = -1;
spot.y = -1;
//if (fl_xim_ic) XUnsetICFocus(fl_xim_ic);
}
void fl_set_spot(int font, int size, int X, int Y, int W, int H, Fl_Window *win)
{
int change = 0;
XVaNestedList preedit_attr;
static XFontSet fs = NULL;
char **missing_list;
int missing_count;
char *def_string;
char *fnt = NULL;
bool must_free_fnt =true;
static XIC ic = NULL;
if (!fl_xim_ic || !fl_is_over_the_spot) return;
//XSetICFocus(fl_xim_ic);
if (X != spot.x || Y != spot.y) {
spot.x = X;
spot.y = Y;
spot.height = H;
spot.width = W;
change = 1;
}
if (font != spotf || size != spots) {
spotf = font;
spots = size;
change = 1;
if (fs) {
XFreeFontSet(fl_display, fs);
}
#if USE_XFT
#if defined(__GNUC__)
// FIXME: warning XFT support here
#endif /*__GNUC__*/
fnt = NULL; // fl_get_font_xfld(font, size);
if (!fnt) {fnt = (char*)"-misc-fixed-*";must_free_fnt=false;}
fs = XCreateFontSet(fl_display, fnt, &missing_list,
&missing_count, &def_string);
#else
fnt = fl_get_font_xfld(font, size);
if (!fnt) {fnt = (char*)"-misc-fixed-*";must_free_fnt=false;}
fs = XCreateFontSet(fl_display, fnt, &missing_list,
&missing_count, &def_string);
#endif
}
if (fl_xim_ic != ic) {
ic = fl_xim_ic;
change = 1;
}
if (fnt && must_free_fnt) free(fnt);
if (!change) return;
preedit_attr = XVaCreateNestedList(0,
XNSpotLocation, &spot,
XNFontSet, fs, NULL);
XSetICValues(fl_xim_ic, XNPreeditAttributes, preedit_attr, NULL);
XFree(preedit_attr);
}
void fl_set_status(int x, int y, int w, int h)
{
XVaNestedList status_attr;
status_area.x = x;
status_area.y = y;
status_area.width = w;
status_area.height = h;
if (!fl_xim_ic) return;
status_attr = XVaCreateNestedList(0, XNArea, &status_area, NULL);
XSetICValues(fl_xim_ic, XNStatusAttributes, status_attr, NULL);
XFree(status_attr);
}
static void fl_init_xim() {
static int xim_warning = 2;
if (xim_warning > 0) xim_warning--;
//XIMStyle *style;
XIMStyles *xim_styles;
if (!fl_display) return;
if (fl_xim_im) return;
fl_xim_im = XOpenIM(fl_display, NULL, NULL, NULL);
xim_styles = NULL;
fl_xim_ic = NULL;
if (fl_xim_im) {
XGetIMValues (fl_xim_im, XNQueryInputStyle,
&xim_styles, NULL, NULL);
} else {
if (xim_warning)
Fl::warning("XOpenIM() failed");
// if xim_styles is allocated, free it now
if (xim_styles) XFree(xim_styles);
return;
}
if (xim_styles && xim_styles->count_styles) {
fl_new_ic();
} else {
if (xim_warning)
Fl::warning("No XIM style found");
XCloseIM(fl_xim_im);
fl_xim_im = NULL;
// if xim_styles is allocated, free it now
if (xim_styles) XFree(xim_styles);
return;
}
if (!fl_xim_ic) {
if (xim_warning)
Fl::warning("XCreateIC() failed");
XCloseIM(fl_xim_im);
fl_xim_im = NULL;
}
// if xim_styles is still allocated, free it now
if(xim_styles) XFree(xim_styles);
}
void fl_xim_deactivate(void);
void fl_xim_activate(Window xid) {
if (!fl_xim_im)
return;
// If the focused window has changed, then use the brute force method
// of completely recreating the input context.
if (fl_xim_win != xid) {
fl_xim_deactivate();
fl_new_ic();
fl_xim_win = xid;
XSetICValues(fl_xim_ic,
XNFocusWindow, fl_xim_win,
XNClientWindow, fl_xim_win,
NULL);
}
fl_set_spot(spotf, spots, spot.x, spot.y, spot.width, spot.height);
}
void fl_xim_deactivate(void) {
if (!fl_xim_ic)
return;
XDestroyIC(fl_xim_ic);
fl_xim_ic = NULL;
fl_xim_win = 0;
}
void Fl::enable_im() {
Fl_Window *win;
win = Fl::first_window();
if (win && win->shown()) {
fl_xim_activate(fl_xid(win));
XSetICFocus(fl_xim_ic);
} else {
fl_new_ic();
}
}
void Fl::disable_im() {
fl_xim_deactivate();
}
void fl_open_display() {
if (fl_display) return;
setlocale(LC_CTYPE, "");
XSetLocaleModifiers("@im=");
XSetIOErrorHandler(io_error_handler);
XSetErrorHandler(xerror_handler);
Display *d = XOpenDisplay(0);
if (!d) Fl::fatal("Can't open display: %s",XDisplayName(0));
fl_open_display(d);
}
void fl_open_display(Display* d) {
fl_display = d;
WM_DELETE_WINDOW = XInternAtom(d, "WM_DELETE_WINDOW", 0);
WM_PROTOCOLS = XInternAtom(d, "WM_PROTOCOLS", 0);
fl_MOTIF_WM_HINTS = XInternAtom(d, "_MOTIF_WM_HINTS", 0);
TARGETS = XInternAtom(d, "TARGETS", 0);
CLIPBOARD = XInternAtom(d, "CLIPBOARD", 0);
TIMESTAMP = XInternAtom(d, "TIMESTAMP", 0);
PRIMARY_TIMESTAMP = XInternAtom(d, "PRIMARY_TIMESTAMP", 0);
CLIPBOARD_TIMESTAMP = XInternAtom(d, "CLIPBOARD_TIMESTAMP", 0);
fl_XdndAware = XInternAtom(d, "XdndAware", 0);
fl_XdndSelection = XInternAtom(d, "XdndSelection", 0);
fl_XdndEnter = XInternAtom(d, "XdndEnter", 0);
fl_XdndTypeList = XInternAtom(d, "XdndTypeList", 0);
fl_XdndPosition = XInternAtom(d, "XdndPosition", 0);
fl_XdndLeave = XInternAtom(d, "XdndLeave", 0);
fl_XdndDrop = XInternAtom(d, "XdndDrop", 0);
fl_XdndStatus = XInternAtom(d, "XdndStatus", 0);
fl_XdndActionCopy = XInternAtom(d, "XdndActionCopy", 0);
fl_XdndFinished = XInternAtom(d, "XdndFinished", 0);
//fl_XdndProxy = XInternAtom(d, "XdndProxy", 0);
fl_XdndEnter = XInternAtom(d, "XdndEnter", 0);
fl_XdndURIList = XInternAtom(d, "text/uri-list", 0);
fl_Xatextplainutf = XInternAtom(d, "text/plain;charset=UTF-8",0);
fl_Xatextplainutf2 = XInternAtom(d, "text/plain;charset=utf-8",0); // Firefox/Thunderbird needs this - See STR#2930
fl_Xatextplain = XInternAtom(d, "text/plain", 0);
fl_XaText = XInternAtom(d, "TEXT", 0);
fl_XaCompoundText = XInternAtom(d, "COMPOUND_TEXT", 0);
fl_XaUtf8String = XInternAtom(d, "UTF8_STRING", 0);
fl_XaTextUriList = XInternAtom(d, "text/uri-list", 0);
fl_XaImageBmp = XInternAtom(d, "image/bmp", 0);
fl_XaImagePNG = XInternAtom(d, "image/png", 0);
fl_INCR = XInternAtom(d, "INCR", 0);
fl_NET_WM_PID = XInternAtom(d, "_NET_WM_PID", 0);
fl_NET_WM_NAME = XInternAtom(d, "_NET_WM_NAME", 0);
fl_NET_WM_ICON_NAME = XInternAtom(d, "_NET_WM_ICON_NAME", 0);
fl_NET_SUPPORTING_WM_CHECK = XInternAtom(d, "_NET_SUPPORTING_WM_CHECK", 0);
fl_NET_WM_STATE = XInternAtom(d, "_NET_WM_STATE", 0);
fl_NET_WM_STATE_FULLSCREEN = XInternAtom(d, "_NET_WM_STATE_FULLSCREEN", 0);
fl_NET_WM_FULLSCREEN_MONITORS = XInternAtom(d, "_NET_WM_FULLSCREEN_MONITORS", 0);
fl_NET_WORKAREA = XInternAtom(d, "_NET_WORKAREA", 0);
fl_NET_WM_ICON = XInternAtom(d, "_NET_WM_ICON", 0);
fl_NET_ACTIVE_WINDOW = XInternAtom(d, "_NET_ACTIVE_WINDOW", 0);
if (sizeof(Atom) < 4)
atom_bits = sizeof(Atom) * 8;
Fl::add_fd(ConnectionNumber(d), POLLIN, fd_callback);
fl_screen = DefaultScreen(d);
fl_message_window =
XCreateSimpleWindow(d, RootWindow(d,fl_screen), 0,0,1,1,0, 0, 0);
// construct an XVisualInfo that matches the default Visual:
XVisualInfo templt; int num;
templt.visualid = XVisualIDFromVisual(DefaultVisual(d, fl_screen));
fl_visual = XGetVisualInfo(d, VisualIDMask, &templt, &num);
fl_colormap = DefaultColormap(d, fl_screen);
fl_init_xim();
#if !USE_COLORMAP
Fl::visual(FL_RGB);
#endif
#if HAVE_XFIXES
int error_base;
if (XFixesQueryExtension(fl_display, &xfixes_event_base, &error_base))
have_xfixes = true;
else
have_xfixes = false;
#endif
#if USE_XRANDR
void *libxrandr_addr = dlopen("libXrandr.so.2", RTLD_LAZY);
if (!libxrandr_addr) libxrandr_addr = dlopen("libXrandr.so", RTLD_LAZY);
if (libxrandr_addr) {
int error_base;
typedef Bool (*XRRQueryExtension_type)(Display*, int*, int*);
typedef void (*XRRSelectInput_type)(Display*, Window, int);
XRRQueryExtension_type XRRQueryExtension_f = (XRRQueryExtension_type)dlsym(libxrandr_addr, "XRRQueryExtension");
XRRSelectInput_type XRRSelectInput_f = (XRRSelectInput_type)dlsym(libxrandr_addr, "XRRSelectInput");
XRRUpdateConfiguration_f = (XRRUpdateConfiguration_type)dlsym(libxrandr_addr, "XRRUpdateConfiguration");
if (XRRQueryExtension_f && XRRSelectInput_f && XRRQueryExtension_f(d, &randrEventBase, &error_base))
XRRSelectInput_f(d, RootWindow(d, fl_screen), RRScreenChangeNotifyMask);
else XRRUpdateConfiguration_f = NULL;
}
#endif
// Listen for changes to _NET_WORKAREA
XSelectInput(d, RootWindow(d, fl_screen), PropertyChangeMask);
}
void fl_close_display() {
Fl::remove_fd(ConnectionNumber(fl_display));
XCloseDisplay(fl_display);
}
static int fl_workarea_xywh[4] = { -1, -1, -1, -1 };
static void fl_init_workarea() {
fl_open_display();
Atom actual;
unsigned long count, remaining;
int format;
long *xywh = 0;
/* If there are several screens, the _NET_WORKAREA property
does not give the work area of the main screen, but that of all screens together.
Therefore, we use this property only when there is a single screen,
and fall back to the main screen full area when there are several screens.
*/
if (Fl::screen_count() > 1 || XGetWindowProperty(fl_display, RootWindow(fl_display, fl_screen),
fl_NET_WORKAREA, 0, 4, False,
XA_CARDINAL, &actual, &format, &count, &remaining,
(unsigned char **)&xywh) || !xywh || !xywh[2] ||
!xywh[3])
{
Fl::screen_xywh(fl_workarea_xywh[0],
fl_workarea_xywh[1],
fl_workarea_xywh[2],
fl_workarea_xywh[3], 0);
}
else
{
fl_workarea_xywh[0] = (int)xywh[0];
fl_workarea_xywh[1] = (int)xywh[1];
fl_workarea_xywh[2] = (int)xywh[2];
fl_workarea_xywh[3] = (int)xywh[3];
}
if ( xywh ) { XFree(xywh); xywh = 0; }
}
int Fl::x() {
if (fl_workarea_xywh[0] < 0) fl_init_workarea();
return fl_workarea_xywh[0];
}
int Fl::y() {
if (fl_workarea_xywh[0] < 0) fl_init_workarea();
return fl_workarea_xywh[1];
}
int Fl::w() {
if (fl_workarea_xywh[0] < 0) fl_init_workarea();
return fl_workarea_xywh[2];
}
int Fl::h() {
if (fl_workarea_xywh[0] < 0) fl_init_workarea();
return fl_workarea_xywh[3];
}
void Fl::get_mouse(int &xx, int &yy) {
fl_open_display();
Window root = RootWindow(fl_display, fl_screen);
Window c; int mx,my,cx,cy; unsigned int mask;
XQueryPointer(fl_display,root,&root,&c,&mx,&my,&cx,&cy,&mask);
xx = mx;
yy = my;
}
////////////////////////////////////////////////////////////////
// Code used for paste and DnD into the program:
Fl_Widget *fl_selection_requestor;
char *fl_selection_buffer[2];
int fl_selection_length[2];
const char * fl_selection_type[2];
int fl_selection_buffer_length[2];
char fl_i_own_selection[2] = {0,0};
// Call this when a "paste" operation happens:
void Fl::paste(Fl_Widget &receiver, int clipboard, const char *type) {
if (fl_i_own_selection[clipboard]) {
// We already have it, do it quickly without window server.
// Notice that the text is clobbered if set_selection is
// called in response to FL_PASTE!
// However, for now, we only paste text in this function
if (fl_selection_type[clipboard] != Fl::clipboard_plain_text) return; //TODO: allow copy/paste of image within same app
Fl::e_text = fl_selection_buffer[clipboard];
Fl::e_length = fl_selection_length[clipboard];
if (!Fl::e_text) Fl::e_text = (char *)"";
receiver.handle(FL_PASTE);
return;
}
// otherwise get the window server to return it:
fl_selection_requestor = &receiver;
Atom property = clipboard ? CLIPBOARD : XA_PRIMARY;
Fl::e_clipboard_type = type;
XConvertSelection(fl_display, property, TARGETS, property,
fl_xid(Fl::first_window()), fl_event_time);
}
int Fl::clipboard_contains(const char *type)
{
XEvent event;
Atom actual; int format; unsigned long count, remaining, i = 0;
unsigned char* portion = NULL;
Fl_Window *win = Fl::first_window();
if (!win || !fl_xid(win)) return 0;
XConvertSelection(fl_display, CLIPBOARD, TARGETS, CLIPBOARD, fl_xid(win), CurrentTime);
XFlush(fl_display);
do {
XNextEvent(fl_display, &event);
if (event.type == SelectionNotify && event.xselection.property == None) return 0;
i++;
}
while (i < 50 && event.type != SelectionNotify);
if (i >= 50) return 0;
XGetWindowProperty(fl_display,
event.xselection.requestor,
event.xselection.property,
0, 4000, 0, 0,
&actual, &format, &count, &remaining, &portion);
if (actual != XA_ATOM) return 0;
Atom t;
int retval = 0;
if (strcmp(type, Fl::clipboard_plain_text) == 0) {
for (i = 0; i<count; i++) { // searching for text data
t = ((Atom*)portion)[i];
if (t == fl_Xatextplainutf ||
t == fl_Xatextplainutf2 ||
t == fl_Xatextplain ||
t == fl_XaUtf8String) {
retval = 1;
break;
}
}
}
else if (strcmp(type, Fl::clipboard_image) == 0) {
for (i = 0; i<count; i++) { // searching for image data
t = ((Atom*)portion)[i];
if (t == fl_XaImageBmp || t == fl_XaImagePNG) {
retval = 1;
break;
}
}
}
XFree(portion);
return retval;
}
static Window fl_dnd_source_window;
static Atom *fl_dnd_source_types; // null-terminated list of data types being supplied
static Atom fl_dnd_type;
static Atom fl_dnd_source_action;
static Atom fl_dnd_action;
void fl_sendClientMessage(Window window, Atom message,
unsigned long d0,
unsigned long d1=0,
unsigned long d2=0,
unsigned long d3=0,
unsigned long d4=0)
{
XEvent e;
e.xany.type = ClientMessage;
e.xany.window = window;
e.xclient.message_type = message;
e.xclient.format = 32;
e.xclient.data.l[0] = (long)d0;
e.xclient.data.l[1] = (long)d1;
e.xclient.data.l[2] = (long)d2;
e.xclient.data.l[3] = (long)d3;
e.xclient.data.l[4] = (long)d4;
XSendEvent(fl_display, window, 0, 0, &e);
}
/*
Get window property value (32 bit format)
Returns zero on success, -1 on error
'data' should be freed with XFree() using this pattern:
unsigned long *data = 0;
if (0 == get_xwinprop(....., &nitems, &data) ) { ..success.. }
else { ..fail.. }
if ( data ) { XFree(data); data=0; }
Note: 'data' can be non-zero, even if the return value is -1 (error) and
should hence be XFree'd *after* the if/else statement, as described above.
*/
static int get_xwinprop(Window wnd, Atom prop, long max_length,
unsigned long *nitems, unsigned long **data) {
Atom actual;
int format;
unsigned long bytes_after;
if (Success != XGetWindowProperty(fl_display, wnd, prop, 0, max_length,
False, AnyPropertyType, &actual, &format,
nitems, &bytes_after, (unsigned char**)data)) {
return -1;
}
if (actual == None || format != 32) {
return -1;
}
return 0;
}
////////////////////////////////////////////////////////////////
// Code for copying to clipboard and DnD out of the program:
void Fl::copy(const char *stuff, int len, int clipboard, const char *type) {
if (!stuff || len<0) return;
if (clipboard >= 2) {
copy(stuff, len, 0, type);
copy(stuff, len, 1, type);
return;
}
if (len+1 > fl_selection_buffer_length[clipboard]) {
delete[] fl_selection_buffer[clipboard];
fl_selection_buffer[clipboard] = new char[len+100];
fl_selection_buffer_length[clipboard] = len+100;
}
memcpy(fl_selection_buffer[clipboard], stuff, len);
fl_selection_buffer[clipboard][len] = 0; // needed for direct paste
fl_selection_length[clipboard] = len;
fl_i_own_selection[clipboard] = 1;
fl_selection_type[clipboard] = Fl::clipboard_plain_text;
Atom property = clipboard ? CLIPBOARD : XA_PRIMARY;
XSetSelectionOwner(fl_display, property, fl_message_window, fl_event_time);
}
static void write_short(unsigned char **cp,short i){
unsigned char *c=*cp;
*c++=i&0xFF;i>>=8;
*c++=i&0xFF;i>>=8;
*cp=c;
}
static void write_int(unsigned char **cp,int i){
unsigned char *c=*cp;
*c++=i&0xFF;i>>=8;
*c++=i&0xFF;i>>=8;
*c++=i&0xFF;i>>=8;
*c++=i&0xFF;i>>=8;
*cp=c;
}
static unsigned char *create_bmp(const unsigned char *data, int W, int H, int *return_size){
int R=(3*W+3)/4 * 4; // the number of bytes per row, rounded up to multiple of 4
int s=H*R;
int fs=14+40+s;
unsigned char *b=new unsigned char[fs];
unsigned char *c=b;
// BMP header
*c++='B';
*c++='M';
write_int(&c,fs);
write_int(&c,0);
write_int(&c,14+40);
// DIB header:
write_int(&c,40);
write_int(&c,W);
write_int(&c,H);
write_short(&c,1);
write_short(&c,24);//bits ber pixel
write_int(&c,0);//RGB
write_int(&c,s);
write_int(&c,0);// horizontal resolution
write_int(&c,0);// vertical resolution
write_int(&c,0);//number of colors. 0 -> 1<<bits_per_pixel
write_int(&c,0);
// Pixel data
data+=3*W*H;
for (int y=0;y<H;++y){
data-=3*W;
const unsigned char *s=data;
unsigned char *p=c;
for (int x=0;x<W;++x){
*p++=s[2];
*p++=s[1];
*p++=s[0];
s+=3;
}
c+=R;
}
*return_size = fs;
return b;
}
void Fl::copy_image(const unsigned char *data, int W, int H, int clipboard){
if(!data || W<=0 || H<=0) return;
delete[] fl_selection_buffer[clipboard];
fl_selection_buffer[clipboard] = (char *) create_bmp(data,W,H,&fl_selection_length[clipboard]);
fl_selection_buffer_length[clipboard] = fl_selection_length[clipboard];
fl_i_own_selection[clipboard] = 1;
fl_selection_type[clipboard] = Fl::clipboard_image;
Atom property = clipboard ? CLIPBOARD : XA_PRIMARY;
XSetSelectionOwner(fl_display, property, fl_message_window, fl_event_time);
}
////////////////////////////////////////////////////////////////
// Code for tracking clipboard changes:
static Time primary_timestamp = (Time)-1;
static Time clipboard_timestamp = (Time)-1;
extern bool fl_clipboard_notify_empty(void);
extern void fl_trigger_clipboard_notify(int source);
static void poll_clipboard_owner(void) {
Window xid;
#if HAVE_XFIXES
// No polling needed with Xfixes
if (have_xfixes)
return;
#endif
// No one is interested, so no point polling
if (fl_clipboard_notify_empty())
return;
// We need a window for this to work
if (!Fl::first_window())
return;
xid = fl_xid(Fl::first_window());
if (!xid)
return;
// Request an update of the selection time for both the primary and
// clipboard selections. Magic continues when we get a SelectionNotify.
if (!fl_i_own_selection[0])
XConvertSelection(fl_display, XA_PRIMARY, TIMESTAMP, PRIMARY_TIMESTAMP,
xid, fl_event_time);
if (!fl_i_own_selection[1])
XConvertSelection(fl_display, CLIPBOARD, TIMESTAMP, CLIPBOARD_TIMESTAMP,
xid, fl_event_time);
}
static void clipboard_timeout(void *data)
{
// No one is interested, so stop polling
if (fl_clipboard_notify_empty())
return;
poll_clipboard_owner();
Fl::repeat_timeout(0.5, clipboard_timeout);
}
static void handle_clipboard_timestamp(int clipboard, Time time)
{
Time *timestamp;
timestamp = clipboard ? &clipboard_timestamp : &primary_timestamp;
#if HAVE_XFIXES
if (!have_xfixes)
#endif
{
// Initial scan, just store the value
if (*timestamp == (Time)-1) {
*timestamp = time;
return;
}
}
// Same selection
if (time == *timestamp)
return;
*timestamp = time;
// The clipboard change is the event that caused us to request
// the clipboard data, so use that time as the latest event.
if (time > fl_event_time)
fl_event_time = time;
// Something happened! Let's tell someone!
fl_trigger_clipboard_notify(clipboard);
}
void fl_clipboard_notify_change() {
// Reset the timestamps if we've going idle so that you don't
// get a bogus immediate trigger next time they're activated.
if (fl_clipboard_notify_empty()) {
primary_timestamp = (Time)-1;
clipboard_timestamp = (Time)-1;
} else {
#if HAVE_XFIXES
if (!have_xfixes)
#endif
{
poll_clipboard_owner();
if (!Fl::has_timeout(clipboard_timeout))
Fl::add_timeout(0.5, clipboard_timeout);
}
}
}
////////////////////////////////////////////////////////////////
const XEvent* fl_xevent; // the current x event
ulong fl_event_time; // the last timestamp from an x event
char fl_key_vector[32]; // used by Fl::get_key()
// Record event mouse position and state from an XEvent:
static int px, py;
static ulong ptime;
static void set_event_xy() {
# if CONSOLIDATE_MOTION
send_motion = 0;
# endif
Fl::e_x_root = fl_xevent->xbutton.x_root;
Fl::e_x = fl_xevent->xbutton.x;
Fl::e_y_root = fl_xevent->xbutton.y_root;
Fl::e_y = fl_xevent->xbutton.y;
Fl::e_state = fl_xevent->xbutton.state << 16;
fl_event_time = fl_xevent->xbutton.time;
# ifdef __sgi
// get the meta key off PC keyboards:
if (fl_key_vector[18]&0x18) Fl::e_state |= FL_META;
# endif
// turn off is_click if enough time or mouse movement has passed:
if (abs(Fl::e_x_root-px)+abs(Fl::e_y_root-py) > 3 ||
fl_event_time >= ptime+1000)
Fl::e_is_click = 0;
}
// if this is same event as last && is_click, increment click count:
static inline void checkdouble() {
if (Fl::e_is_click == Fl::e_keysym)
Fl::e_clicks++;
else {
Fl::e_clicks = 0;
Fl::e_is_click = Fl::e_keysym;
}
px = Fl::e_x_root;
py = Fl::e_y_root;
ptime = fl_event_time;
}
static Fl_Window* resize_bug_fix;
////////////////////////////////////////////////////////////////
static char unknown[] = "<unknown>";
const int unknown_len = 10;
extern "C" {
static int xerror = 0;
static int ignoreXEvents(Display *display, XErrorEvent *event) {
xerror = 1;
return 0;
}
static XErrorHandler catchXExceptions() {
xerror = 0;
return ignoreXEvents;
}
static int wasXExceptionRaised() {
return xerror;
}
}
static bool getNextEvent(XEvent *event_return)
{
time_t t = time(NULL);
while(!XPending(fl_display))
{
if(time(NULL) - t > 10.0)
{
//fprintf(stderr,"Error: The XNextEvent never came...\n");
return false;
}
}
XNextEvent(fl_display, event_return);
return true;
}
static long getIncrData(uchar* &data, const XSelectionEvent& selevent, long lower_bound)
{
//fprintf(stderr,"Incremental transfer starting due to INCR property\n");
size_t total = 0;
XEvent event;
XDeleteProperty(fl_display, selevent.requestor, selevent.property);
data = (uchar*)realloc(data, lower_bound);
for (;;)
{
if (!getNextEvent(&event)) break;
if (event.type == PropertyNotify)
{
if (event.xproperty.state != PropertyNewValue) continue;
Atom actual_type;
int actual_format;
unsigned long nitems;
unsigned long bytes_after;
unsigned char* prop = 0;
long offset = 0;
size_t num_bytes;
//size_t slice_size = 0;
do
{
XGetWindowProperty(fl_display, selevent.requestor, selevent.property, offset, 70000, True,
AnyPropertyType, &actual_type, &actual_format, &nitems, &bytes_after, &prop);
num_bytes = nitems * (actual_format / 8);
offset += num_bytes/4;
//slice_size += num_bytes;
if (total + num_bytes > (size_t)lower_bound) data = (uchar*)realloc(data, total + num_bytes);
memcpy(data + total, prop, num_bytes); total += num_bytes;
if (prop) XFree(prop);
} while (bytes_after != 0);
//fprintf(stderr,"INCR data size:%ld\n", slice_size);
if (num_bytes == 0) break;
}
else break;
}
XDeleteProperty(fl_display, selevent.requestor, selevent.property);
return (long)total;
}
/* Internal function to reduce "deprecated" warnings for XKeycodeToKeysym().
This way we get only one warning. The option to use XkbKeycodeToKeysym()
instead would not help much - see STR #2913 for more information.
*/
static KeySym fl_KeycodeToKeysym(Display *d, KeyCode k, unsigned i) {
return XKeycodeToKeysym(d, k, i);
}
int fl_handle(const XEvent& thisevent)
{
XEvent xevent = thisevent;
fl_xevent = &thisevent;
Window xid = xevent.xany.window;
if (fl_xim_ic && xevent.type == DestroyNotify &&
xid != fl_xim_win && !fl_find(xid))
{
XIM xim_im;
xim_im = XOpenIM(fl_display, NULL, NULL, NULL);
if (!xim_im) {
/* XIM server has crashed */
XSetLocaleModifiers("@im=");
fl_xim_im = NULL;
fl_init_xim();
} else {
XCloseIM(xim_im); // see STR 2185 for comment
}
return 0;
}
if (fl_xim_ic && (xevent.type == FocusIn))
fl_xim_activate(xid);
if (fl_xim_ic && XFilterEvent((XEvent *)&xevent, 0))
return(1);
#if USE_XRANDR
if( XRRUpdateConfiguration_f && xevent.type == randrEventBase + RRScreenChangeNotify) {
XRRUpdateConfiguration_f(&xevent);
Fl::call_screen_init();
fl_init_workarea();
Fl::handle(FL_SCREEN_CONFIGURATION_CHANGED, NULL);
}
#endif
if (xevent.type == PropertyNotify && xevent.xproperty.atom == fl_NET_WORKAREA) {
fl_init_workarea();
}
switch (xevent.type) {
case KeymapNotify:
memcpy(fl_key_vector, xevent.xkeymap.key_vector, 32);
return 0;
case MappingNotify:
XRefreshKeyboardMapping((XMappingEvent*)&xevent.xmapping);
return 0;
case SelectionNotify: {
static unsigned char* sn_buffer = 0;
//static const char *buffer_format = 0;
if (sn_buffer) {XFree(sn_buffer); sn_buffer = 0;}
long bytesread = 0;
if (fl_xevent->xselection.property) for (;;) {
// The Xdnd code pastes 64K chunks together, possibly to avoid
// bugs in X servers, or maybe to avoid an extra round-trip to
// get the property length. I copy this here:
Atom actual; int format; unsigned long count, remaining;
unsigned char* portion = NULL;
if (XGetWindowProperty(fl_display,
fl_xevent->xselection.requestor,
fl_xevent->xselection.property,
bytesread/4, 65536, 1, AnyPropertyType,
&actual, &format, &count, &remaining,
&portion)) break; // quit on error
if ((fl_xevent->xselection.property == PRIMARY_TIMESTAMP) ||
(fl_xevent->xselection.property == CLIPBOARD_TIMESTAMP)) {
if (portion && format == 32 && count == 1) {
Time t = *(unsigned int*)portion;
if (fl_xevent->xselection.property == CLIPBOARD_TIMESTAMP)
handle_clipboard_timestamp(1, t);
else
handle_clipboard_timestamp(0, t);
}
XFree(portion); portion = 0;
return true;
}
if (actual == TARGETS || actual == XA_ATOM) {
/*for (unsigned i = 0; i<count; i++) {
fprintf(stderr," %s", XGetAtomName(fl_display, ((Atom*)portion)[i]) );
}
fprintf(stderr,"\n");*/
Atom t, type = XA_STRING;
if (Fl::e_clipboard_type == Fl::clipboard_image) { // searching for image data
for (unsigned i = 0; i<count; i++) {
t = ((Atom*)portion)[i];
if (t == fl_XaImageBmp || t == fl_XaImagePNG) {
type = t;
goto found;
}
}
XFree(portion);
return true;
}
for (unsigned i = 0; i<count; i++) { // searching for text data
t = ((Atom*)portion)[i];
if (t == fl_Xatextplainutf ||
t == fl_Xatextplainutf2 ||
t == fl_Xatextplain ||
t == fl_XaUtf8String) {
type = t;
break;
}
// rest are only used if no utf-8 available:
if (t == fl_XaText ||
t == fl_XaTextUriList ||
t == fl_XaCompoundText) type = t;
}
found:
XFree(portion); portion = 0;
Atom property = xevent.xselection.property;
XConvertSelection(fl_display, property, type, property,
fl_xid(Fl::first_window()),
fl_event_time);
if (type == fl_XaImageBmp) {
Fl::e_clipboard_type = Fl::clipboard_image;
//buffer_format = "image/bmp";
}
else if (type == fl_XaImagePNG) {
Fl::e_clipboard_type = Fl::clipboard_image;
//buffer_format = "image/png";
}
else {
Fl::e_clipboard_type = Fl::clipboard_plain_text;
//buffer_format = Fl::clipboard_plain_text;
}
//fprintf(stderr,"used format=%s\n", buffer_format);
return true;
}
if (actual == fl_INCR) {
bytesread = getIncrData(sn_buffer, xevent.xselection, *(long*)portion);
XFree(portion);
break;
}
// Make sure we got something sane...
if ((portion == NULL) || (format != 8) || (count == 0)) {
if (portion) { XFree(portion); portion = 0; }
return true;
}
sn_buffer = (unsigned char*)realloc(sn_buffer, bytesread+count+remaining+1);
memcpy(sn_buffer+bytesread, portion, count);
if (portion) { XFree(portion); portion = 0; }
bytesread += count;
// Cannot trust data to be null terminated
sn_buffer[bytesread] = '\0';
if (!remaining) break;
}
if (sn_buffer && Fl::e_clipboard_type == Fl::clipboard_plain_text) {
sn_buffer[bytesread] = 0;
convert_crlf(sn_buffer, bytesread);
}
if (!fl_selection_requestor) return 0;
if (Fl::e_clipboard_type == Fl::clipboard_image) {
if (bytesread == 0) return 0;
static char tmp_fname[21];
static Fl_Shared_Image *shared = 0;
strcpy(tmp_fname, "/tmp/clipboardXXXXXX");
int fd = mkstemp(tmp_fname);
if (fd == -1) return 0;
uchar *p = sn_buffer; ssize_t towrite = bytesread, written;
while (towrite) {
written = write(fd, p, towrite);
p += written; towrite -= written;
}
close(fd);
free(sn_buffer); sn_buffer = 0;
shared = Fl_Shared_Image::get(tmp_fname);
unlink(tmp_fname);
if (!shared) return 0;
uchar *rgb = new uchar[shared->w() * shared->h() * shared->d()];
memcpy(rgb, shared->data()[0], shared->w() * shared->h() * shared->d());
Fl_RGB_Image *image = new Fl_RGB_Image(rgb, shared->w(), shared->h(), shared->d());
shared->release();
image->alloc_array = 1;
Fl::e_clipboard_data = (void*)image;
}
else if (Fl::e_clipboard_type == Fl::clipboard_plain_text) {
Fl::e_text = sn_buffer ? (char*)sn_buffer : (char *)"";
Fl::e_length = bytesread;
}
int old_event = Fl::e_number;
int retval = fl_selection_requestor->handle(Fl::e_number = FL_PASTE);
if (!retval && Fl::e_clipboard_type == Fl::clipboard_image) {
delete (Fl_RGB_Image*)Fl::e_clipboard_data;
Fl::e_clipboard_data = NULL;
}
Fl::e_number = old_event;
// Detect if this paste is due to Xdnd by the property name (I use
// XA_SECONDARY for that) and send an XdndFinished message. It is not
// clear if this has to be delayed until now or if it can be done
// immediately after calling XConvertSelection.
if (fl_xevent->xselection.property == XA_SECONDARY &&
fl_dnd_source_window) {
fl_sendClientMessage(fl_dnd_source_window, fl_XdndFinished,
fl_xevent->xselection.requestor);
fl_dnd_source_window = 0; // don't send a second time
}
return 1;}
case SelectionClear: {
int clipboard = fl_xevent->xselectionclear.selection == CLIPBOARD;
fl_i_own_selection[clipboard] = 0;
poll_clipboard_owner();
return 1;}
case SelectionRequest: {
XSelectionEvent e;
e.type = SelectionNotify;
e.requestor = fl_xevent->xselectionrequest.requestor;
e.selection = fl_xevent->xselectionrequest.selection;
int clipboard = e.selection == CLIPBOARD;
e.target = fl_xevent->xselectionrequest.target;
e.time = fl_xevent->xselectionrequest.time;
e.property = fl_xevent->xselectionrequest.property;
if (fl_selection_type[clipboard] == Fl::clipboard_plain_text) {
if (e.target == TARGETS) {
Atom a[3] = {fl_XaUtf8String, XA_STRING, fl_XaText};
XChangeProperty(fl_display, e.requestor, e.property,
XA_ATOM, atom_bits, 0, (unsigned char*)a, 3);
} else {
if (/*e.target == XA_STRING &&*/ fl_selection_length[clipboard]) {
if (e.target == fl_XaUtf8String ||
e.target == XA_STRING ||
e.target == fl_XaCompoundText ||
e.target == fl_XaText ||
e.target == fl_Xatextplain ||
e.target == fl_Xatextplainutf ||
e.target == fl_Xatextplainutf2) {
// clobber the target type, this seems to make some applications
// behave that insist on asking for XA_TEXT instead of UTF8_STRING
// Does not change XA_STRING as that breaks xclipboard.
if (e.target != XA_STRING) e.target = fl_XaUtf8String;
XChangeProperty(fl_display, e.requestor, e.property,
e.target, 8, 0,
(unsigned char *)fl_selection_buffer[clipboard],
fl_selection_length[clipboard]);
}
} else {
// char* x = XGetAtomName(fl_display,e.target);
// fprintf(stderr,"selection request of %s\n",x);
// XFree(x);
e.property = 0;
}
}
} else { // image in clipboard
if (e.target == TARGETS) {
Atom a[1] = {fl_XaImageBmp};
XChangeProperty(fl_display, e.requestor, e.property,
XA_ATOM, atom_bits, 0, (unsigned char*)a, 1);
} else {
if (e.target == fl_XaImageBmp && fl_selection_length[clipboard]) {
XChangeProperty(fl_display, e.requestor, e.property,
e.target, 8, 0,
(unsigned char *)fl_selection_buffer[clipboard],
fl_selection_length[clipboard]);
} else {
e.property = 0;
}
}
}
XSendEvent(fl_display, e.requestor, 0, 0, (XEvent *)&e);}
return 1;
// events where interesting window id is in a different place:
case CirculateNotify:
case CirculateRequest:
case ConfigureNotify:
case ConfigureRequest:
case CreateNotify:
case DestroyNotify:
case GravityNotify:
case MapNotify:
case MapRequest:
case ReparentNotify:
case UnmapNotify:
xid = xevent.xmaprequest.window;
break;
}
int event = 0;
Fl_Window* window = fl_find(xid);
if (window) switch (xevent.type) {
case DestroyNotify: { // an X11 window was closed externally from the program
Fl::handle(FL_CLOSE, window);
Fl_X* X = Fl_X::i(window);
if (X) { // indicates the FLTK window was not closed
X->xid = (Window)0; // indicates the X11 window was already destroyed
window->hide();
int oldx = window->x(), oldy = window->y();
window->position(0, 0);
window->position(oldx, oldy);
window->show(); // recreate the X11 window in support of the FLTK window
}
return 1;
}
case ClientMessage: {
Atom message = fl_xevent->xclient.message_type;
const long* data = fl_xevent->xclient.data.l;
if ((Atom)(data[0]) == WM_DELETE_WINDOW) {
event = FL_CLOSE;
} else if (message == fl_XdndEnter) {
fl_xmousewin = window;
in_a_window = true;
fl_dnd_source_window = data[0];
// version number is data[1]>>24
// printf("XdndEnter, version %ld\n", data[1] >> 24);
if (data[1]&1) {
// get list of data types:
Atom actual; int format; unsigned long count, remaining;
unsigned char *cm_buffer = 0;
XGetWindowProperty(fl_display, fl_dnd_source_window, fl_XdndTypeList,
0, 0x8000000L, False, XA_ATOM, &actual, &format,
&count, &remaining, &cm_buffer);
if (actual != XA_ATOM || format != 32 || count<4 || !cm_buffer) {
if ( cm_buffer ) { XFree(cm_buffer); cm_buffer = 0; }
goto FAILED;
}
delete [] fl_dnd_source_types;
fl_dnd_source_types = new Atom[count+1];
for (unsigned i = 0; i < count; i++) {
fl_dnd_source_types[i] = ((Atom*)cm_buffer)[i];
}
fl_dnd_source_types[count] = 0;
XFree(cm_buffer); cm_buffer = 0;
} else {
FAILED:
// less than four data types, or if the above messes up:
if (!fl_dnd_source_types) fl_dnd_source_types = new Atom[4];
fl_dnd_source_types[0] = data[2];
fl_dnd_source_types[1] = data[3];
fl_dnd_source_types[2] = data[4];
fl_dnd_source_types[3] = 0;
}
// Loop through the source types and pick the first text type...
unsigned i;
Atom type = ((Atom*)fl_dnd_source_types)[0];
for (i = 0; fl_dnd_source_types[i]; i ++) {
Atom t = ((Atom*)fl_dnd_source_types)[i];
//printf("fl_dnd_source_types[%d]=%ld(%s)\n",i,t,XGetAtomName(fl_display,t));
if (t == fl_Xatextplainutf || // "text/plain;charset=UTF-8"
t == fl_Xatextplainutf2 || // "text/plain;charset=utf-8" -- See STR#2930
t == fl_Xatextplain || // "text/plain"
t == fl_XaUtf8String) { // "UTF8_STRING"
type = t;
break;
}
// rest are only used if no utf-8 available:
if (t == fl_XaText || // "TEXT"
t == fl_XaTextUriList || // "text/uri-list"
t == fl_XaCompoundText) type = t; // "COMPOUND_TEXT"
}
fl_dnd_type = type;
event = FL_DND_ENTER;
Fl::e_text = unknown;
Fl::e_length = unknown_len;
break;
} else if (message == fl_XdndPosition) {
fl_xmousewin = window;
in_a_window = true;
fl_dnd_source_window = data[0];
Fl::e_x_root = data[2]>>16;
Fl::e_y_root = data[2]&0xFFFF;
if (window) {
Fl::e_x = Fl::e_x_root-window->x();
Fl::e_y = Fl::e_y_root-window->y();
}
fl_event_time = data[3];
fl_dnd_source_action = data[4];
fl_dnd_action = fl_XdndActionCopy;
Fl::e_text = unknown;
Fl::e_length = unknown_len;
int accept = Fl::handle(FL_DND_DRAG, window);
fl_sendClientMessage(data[0], fl_XdndStatus,
fl_xevent->xclient.window,
accept ? 1 : 0,
0, // used for xy rectangle to not send position inside
0, // used for width+height of rectangle
accept ? fl_dnd_action : None);
return 1;
} else if (message == fl_XdndLeave) {
fl_dnd_source_window = 0; // don't send a finished message to it
event = FL_DND_LEAVE;
Fl::e_text = unknown;
Fl::e_length = unknown_len;
break;
} else if (message == fl_XdndDrop) {
fl_xmousewin = window;
in_a_window = true;
fl_dnd_source_window = data[0];
fl_event_time = data[2];
Window to_window = fl_xevent->xclient.window;
Fl::e_text = unknown;
Fl::e_length = unknown_len;
if (Fl::handle(FL_DND_RELEASE, window)) {
fl_selection_requestor = Fl::belowmouse();
Fl::e_clipboard_type = Fl::clipboard_plain_text;
XConvertSelection(fl_display, fl_XdndSelection,
fl_dnd_type, XA_SECONDARY,
to_window, fl_event_time);
} else {
// Send the finished message if I refuse the drop.
// It is not clear whether I can just send finished always,
// or if I have to wait for the SelectionNotify event as the
// code is currently doing.
fl_sendClientMessage(fl_dnd_source_window, fl_XdndFinished, to_window);
fl_dnd_source_window = 0;
}
return 1;
}
break;}
case UnmapNotify:
event = FL_HIDE;
break;
case Expose:
Fl_X::i(window)->wait_for_expose = 0;
# if 0
// try to keep windows on top even if WM_TRANSIENT_FOR does not work:
// opaque move/resize window managers do not like this, so I disabled it.
if (Fl::first_window()->non_modal() && window != Fl::first_window())
Fl::first_window()->show();
# endif
case GraphicsExpose:
window->damage(FL_DAMAGE_EXPOSE, xevent.xexpose.x, xevent.xexpose.y,
xevent.xexpose.width, xevent.xexpose.height);
return 1;
case FocusIn:
if (fl_xim_ic) XSetICFocus(fl_xim_ic);
event = FL_FOCUS;
// If the user has toggled from another application to this one,
// then it's a good time to check for clipboard changes.
poll_clipboard_owner();
break;
case FocusOut:
if (fl_xim_ic) XUnsetICFocus(fl_xim_ic);
event = FL_UNFOCUS;
break;
case KeyPress:
case KeyRelease: {
KEYPRESS:
int keycode = xevent.xkey.keycode;
fl_key_vector[keycode/8] |= (1 << (keycode%8));
static char *kp_buffer = NULL;
static int kp_buffer_len = 0;
int len=0;
KeySym keysym;
if (kp_buffer_len == 0) {
kp_buffer_len = 4096;
kp_buffer = (char*) malloc(kp_buffer_len);
}
if (xevent.type == KeyPress) {
event = FL_KEYDOWN;
len = 0;
if (fl_xim_ic) {
Status status;
len = XUtf8LookupString(fl_xim_ic, (XKeyPressedEvent *)&xevent.xkey,
kp_buffer, kp_buffer_len, &keysym, &status);
while (status == XBufferOverflow && kp_buffer_len < 50000) {
kp_buffer_len = kp_buffer_len * 5 + 1;
kp_buffer = (char*)realloc(kp_buffer, kp_buffer_len);
len = XUtf8LookupString(fl_xim_ic, (XKeyPressedEvent *)&xevent.xkey,
kp_buffer, kp_buffer_len, &keysym, &status);
}
keysym = fl_KeycodeToKeysym(fl_display, keycode, 0);
} else {
//static XComposeStatus compose;
len = XLookupString((XKeyEvent*)&(xevent.xkey),
kp_buffer, kp_buffer_len, &keysym, 0/*&compose*/);
if (keysym && keysym < 0x400) { // a character in latin-1,2,3,4 sets
// force it to type a character (not sure if this ever is needed):
// if (!len) {kp_buffer[0] = char(keysym); len = 1;}
len = fl_utf8encode(XKeysymToUcs(keysym), kp_buffer);
if (len < 1) len = 1;
// ignore all effects of shift on the keysyms, which makes it a lot
// easier to program shortcuts and is Windoze-compatible:
keysym = fl_KeycodeToKeysym(fl_display, keycode, 0);
}
}
kp_buffer[len] = 0;
Fl::e_text = kp_buffer;
Fl::e_length = len;
} else {
// Stupid X sends fake key-up events when a repeating key is held
// down, probably due to some back compatibility problem. Fortunately
// we can detect this because the repeating KeyPress event is in
// the queue, get it and execute it instead:
// Bool XkbSetDetectableAutoRepeat ( display, detectable, supported_rtrn )
// Display * display ;
// Bool detectable ;
// Bool * supported_rtrn ;
// ...would be the easy way to correct this issue. Unfortunately, this call is also
// broken on many Unix distros including Ubuntu and Solaris (as of Dec 2009)
// Bogus KeyUp events are generated by repeated KeyDown events. One
// necessary condition is an identical key event pending right after
// the bogus KeyUp.
// The new code introduced Dec 2009 differs in that it only checks the very
// next event in the queue, not the entire queue of events.
// This function wrongly detects a repeat key if a software keyboard
// sends a burst of events containing two consecutive equal keys. However,
// in every non-gaming situation, this is no problem because both KeyPress
// events will cause the expected behavior.
XEvent peekevent;
if (XPending(fl_display)) {
XPeekEvent(fl_display, &peekevent);
if ( (peekevent.type == KeyPress) // must be a KeyPress event
&& (peekevent.xkey.keycode == xevent.xkey.keycode) // must be the same key
&& (peekevent.xkey.time == xevent.xkey.time) // must be sent at the exact same time
) {
XNextEvent(fl_display, &xevent);
goto KEYPRESS;
}
}
event = FL_KEYUP;
fl_key_vector[keycode/8] &= ~(1 << (keycode%8));
// keyup events just get the unshifted keysym:
keysym = fl_KeycodeToKeysym(fl_display, keycode, 0);
}
# ifdef __sgi
// You can plug a microsoft keyboard into an sgi but the extra shift
// keys are not translated. Make them translate like XFree86 does:
if (!keysym) switch(keycode) {
case 147: keysym = FL_Meta_L; break;
case 148: keysym = FL_Meta_R; break;
case 149: keysym = FL_Menu; break;
}
# endif
# ifdef BACKSPACE_HACK
// Attempt to fix keyboards that send "delete" for the key in the
// upper-right corner of the main keyboard. But it appears that
// very few of these remain?
static int got_backspace = 0;
if (!got_backspace) {
if (keysym == FL_Delete) keysym = FL_BackSpace;
else if (keysym == FL_BackSpace) got_backspace = 1;
}
# endif
// For the first few years, there wasn't a good consensus on what the
// Windows keys should be mapped to for X11. So we need to help out a
// bit and map all variants to the same FLTK key...
switch (keysym) {
case XK_Meta_L:
case XK_Hyper_L:
case XK_Super_L:
keysym = FL_Meta_L;
break;
case XK_Meta_R:
case XK_Hyper_R:
case XK_Super_R:
keysym = FL_Meta_R;
break;
}
// Convert the multimedia keys to safer, portable values
switch (keysym) { // XF names come from X11/XF86keysym.h
case 0x1008FF11: // XF86XK_AudioLowerVolume:
keysym = FL_Volume_Down;
break;
case 0x1008FF12: // XF86XK_AudioMute:
keysym = FL_Volume_Mute;
break;
case 0x1008FF13: // XF86XK_AudioRaiseVolume:
keysym = FL_Volume_Up;
break;
case 0x1008FF14: // XF86XK_AudioPlay:
keysym = FL_Media_Play;
break;
case 0x1008FF15: // XF86XK_AudioStop:
keysym = FL_Media_Stop;
break;
case 0x1008FF16: // XF86XK_AudioPrev:
keysym = FL_Media_Prev;
break;
case 0x1008FF17: // XF86XK_AudioNext:
keysym = FL_Media_Next;
break;
case 0x1008FF18: // XF86XK_HomePage:
keysym = FL_Home_Page;
break;
case 0x1008FF19: // XF86XK_Mail:
keysym = FL_Mail;
break;
case 0x1008FF1B: // XF86XK_Search:
keysym = FL_Search;
break;
case 0x1008FF26: // XF86XK_Back:
keysym = FL_Back;
break;
case 0x1008FF27: // XF86XK_Forward:
keysym = FL_Forward;
break;
case 0x1008FF28: // XF86XK_Stop:
keysym = FL_Stop;
break;
case 0x1008FF29: // XF86XK_Refresh:
keysym = FL_Refresh;
break;
case 0x1008FF2F: // XF86XK_Sleep:
keysym = FL_Sleep;
break;
case 0x1008FF30: // XF86XK_Favorites:
keysym = FL_Favorites;
break;
}
// We have to get rid of the XK_KP_function keys, because they are
// not produced on Windoze and thus case statements tend not to check
// for them. There are 15 of these in the range 0xff91 ... 0xff9f
if (keysym >= 0xff91 && keysym <= 0xff9f) {
// Map keypad keysym to character or keysym depending on
// numlock state...
unsigned long keysym1 = fl_KeycodeToKeysym(fl_display, keycode, 1);
if (keysym1 <= 0x7f || (keysym1 > 0xff9f && keysym1 <= FL_KP_Last))
Fl::e_original_keysym = (int)(keysym1 | FL_KP);
if ((xevent.xkey.state & Mod2Mask) &&
(keysym1 <= 0x7f || (keysym1 > 0xff9f && keysym1 <= FL_KP_Last))) {
// Store ASCII numeric keypad value...
keysym = keysym1 | FL_KP;
kp_buffer[0] = char(keysym1) & 0x7F;
len = 1;
} else {
// Map keypad to special key...
static const unsigned short table[15] = {
FL_F+1, FL_F+2, FL_F+3, FL_F+4,
FL_Home, FL_Left, FL_Up, FL_Right,
FL_Down, FL_Page_Up, FL_Page_Down, FL_End,
0xff0b/*XK_Clear*/, FL_Insert, FL_Delete};
keysym = table[keysym-0xff91];
}
} else {
// Store this so we can later know if the KP was used
Fl::e_original_keysym = (int)keysym;
}
Fl::e_keysym = int(keysym);
// replace XK_ISO_Left_Tab (Shift-TAB) with FL_Tab (modifier flags are set correctly by X11)
if (Fl::e_keysym == 0xfe20) Fl::e_keysym = FL_Tab;
set_event_xy();
Fl::e_is_click = 0; }
break;
case ButtonPress:
Fl::e_keysym = FL_Button + xevent.xbutton.button;
set_event_xy();
Fl::e_dx = Fl::e_dy = 0;
if (xevent.xbutton.button == Button4) {
Fl::e_dy = -1; // Up
event = FL_MOUSEWHEEL;
} else if (xevent.xbutton.button == Button5) {
Fl::e_dy = +1; // Down
event = FL_MOUSEWHEEL;
} else if (xevent.xbutton.button == 6) {
Fl::e_dx = -1; // Left
event = FL_MOUSEWHEEL;
} else if (xevent.xbutton.button == 7) {
Fl::e_dx = +1; // Right
event = FL_MOUSEWHEEL;
} else {
Fl::e_state |= (FL_BUTTON1 << (xevent.xbutton.button-1));
event = FL_PUSH;
checkdouble();
}
fl_xmousewin = window;
in_a_window = true;
break;
case PropertyNotify:
if (xevent.xproperty.atom == fl_NET_WM_STATE) {
int fullscreen_state = 0;
if (xevent.xproperty.state != PropertyDelete) {
unsigned long nitems;
unsigned long *words = 0;
if (0 == get_xwinprop(xid, fl_NET_WM_STATE, 64, &nitems, &words) ) {
for (unsigned long item = 0; item < nitems; item++) {
if (words[item] == fl_NET_WM_STATE_FULLSCREEN) {
fullscreen_state = 1;
}
}
}
if ( words ) { XFree(words); words = 0; }
}
if (window->fullscreen_active() && !fullscreen_state) {
window->_clear_fullscreen();
event = FL_FULLSCREEN;
}
if (!window->fullscreen_active() && fullscreen_state) {
window->_set_fullscreen();
event = FL_FULLSCREEN;
}
}
break;
case MotionNotify:
set_event_xy();
# if CONSOLIDATE_MOTION
send_motion = fl_xmousewin = window;
in_a_window = true;
return 0;
# else
event = FL_MOVE;
fl_xmousewin = window;
in_a_window = true;
break;
# endif
case ButtonRelease:
Fl::e_keysym = FL_Button + xevent.xbutton.button;
set_event_xy();
Fl::e_state &= ~(FL_BUTTON1 << (xevent.xbutton.button-1));
if (xevent.xbutton.button == Button4 ||
xevent.xbutton.button == Button5) return 0;
event = FL_RELEASE;
fl_xmousewin = window;
in_a_window = true;
break;
case EnterNotify:
if (xevent.xcrossing.detail == NotifyInferior) break;
// XInstallColormap(fl_display, Fl_X::i(window)->colormap);
set_event_xy();
Fl::e_state = xevent.xcrossing.state << 16;
event = FL_ENTER;
fl_xmousewin = window;
in_a_window = true;
{ XIMStyles *xim_styles = NULL;
if(!fl_xim_im || XGetIMValues(fl_xim_im, XNQueryInputStyle, &xim_styles, NULL, NULL)) {
fl_init_xim();
}
if (xim_styles) XFree(xim_styles);
}
break;
case LeaveNotify:
if (xevent.xcrossing.detail == NotifyInferior) break;
set_event_xy();
Fl::e_state = xevent.xcrossing.state << 16;
fl_xmousewin = 0;
in_a_window = false; // make do_queued_events produce FL_LEAVE event
return 0;
// We cannot rely on the x,y position in the configure notify event.
// I now think this is an unavoidable problem with X: it is impossible
// for a window manager to prevent the "real" notify event from being
// sent when it resizes the contents, even though it can send an
// artificial event with the correct position afterwards (and some
// window managers do not send this fake event anyway)
// So anyway, do a round trip to find the correct x,y:
case MapNotify:
event = FL_SHOW;
case ConfigureNotify: {
if (window->parent()) break; // ignore child windows
// figure out where OS really put window
XWindowAttributes actual;
XGetWindowAttributes(fl_display, fl_xid(window), &actual);
Window cr; int X, Y, W = actual.width, H = actual.height;
XTranslateCoordinates(fl_display, fl_xid(window), actual.root,
0, 0, &X, &Y, &cr);
// tell Fl_Window about it and set flag to prevent echoing:
resize_bug_fix = window;
window->resize(X, Y, W, H);
break; // allow add_handler to do something too
}
case ReparentNotify: {
int xpos, ypos;
Window junk;
// on some systems, the ReparentNotify event is not handled as we would expect.
XErrorHandler oldHandler = XSetErrorHandler(catchXExceptions());
//ReparentNotify gives the new position of the window relative to
//the new parent. FLTK cares about the position on the root window.
XTranslateCoordinates(fl_display, xevent.xreparent.parent,
XRootWindow(fl_display, fl_screen),
xevent.xreparent.x, xevent.xreparent.y,
&xpos, &ypos, &junk);
XSetErrorHandler(oldHandler);
// tell Fl_Window about it and set flag to prevent echoing:
if ( !wasXExceptionRaised() ) {
resize_bug_fix = window;
window->position(xpos, ypos);
}
break;
}
}
#if HAVE_XFIXES
switch (xevent.type - xfixes_event_base) {
case XFixesSelectionNotify: {
// Someone feeding us bogus events?
if (!have_xfixes)
return true;
XFixesSelectionNotifyEvent *selection_notify = (XFixesSelectionNotifyEvent *)&xevent;
if ((selection_notify->selection == XA_PRIMARY) && !fl_i_own_selection[0])
handle_clipboard_timestamp(0, selection_notify->selection_timestamp);
else if ((selection_notify->selection == CLIPBOARD) && !fl_i_own_selection[1])
handle_clipboard_timestamp(1, selection_notify->selection_timestamp);
return true;
}
}
#endif
return Fl::handle(event, window);
}
////////////////////////////////////////////////////////////////
void Fl_Window::resize(int X,int Y,int W,int H) {
int is_a_move = (X != x() || Y != y());
int is_a_resize = (W != w() || H != h());
int resize_from_program = (this != resize_bug_fix);
if (!resize_from_program) resize_bug_fix = 0;
if (is_a_move && resize_from_program) set_flag(FORCE_POSITION);
else if (!is_a_resize && !is_a_move) return;
if (is_a_resize) {
Fl_Group::resize(X,Y,W,H);
if (shown()) {redraw();}
} else {
x(X); y(Y);
}
if (resize_from_program && is_a_resize && !resizable()) {
size_range(w(), h(), w(), h());
}
if (resize_from_program && shown()) {
if (is_a_resize) {
if (!resizable()) size_range(w(),h(),w(),h());
if (is_a_move) {
XMoveResizeWindow(fl_display, i->xid, X, Y, W>0 ? W : 1, H>0 ? H : 1);
} else {
XResizeWindow(fl_display, i->xid, W>0 ? W : 1, H>0 ? H : 1);
}
} else
XMoveWindow(fl_display, i->xid, X, Y);
}
}
////////////////////////////////////////////////////////////////
#define _NET_WM_STATE_REMOVE 0 /* remove/unset property */
#define _NET_WM_STATE_ADD 1 /* add/set property */
#define _NET_WM_STATE_TOGGLE 2 /* toggle property */
static void send_wm_event(Window wnd, Atom message,
unsigned long d0, unsigned long d1=0,
unsigned long d2=0, unsigned long d3=0,
unsigned long d4=0) {
XEvent e;
e.xany.type = ClientMessage;
e.xany.window = wnd;
e.xclient.message_type = message;
e.xclient.format = 32;
e.xclient.data.l[0] = d0;
e.xclient.data.l[1] = d1;
e.xclient.data.l[2] = d2;
e.xclient.data.l[3] = d3;
e.xclient.data.l[4] = d4;
XSendEvent(fl_display, RootWindow(fl_display, fl_screen),
0, SubstructureNotifyMask | SubstructureRedirectMask,
&e);
}
static void send_wm_state_event(Window wnd, int add, Atom prop) {
send_wm_event(wnd, fl_NET_WM_STATE,
add ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE, prop);
}
int Fl_X::ewmh_supported() {
static int result = -1;
if (result == -1) {
fl_open_display();
result = 0;
unsigned long nitems;
unsigned long *words = 0;
if (0 == get_xwinprop(XRootWindow(fl_display, fl_screen), fl_NET_SUPPORTING_WM_CHECK, 64,
&nitems, &words) && nitems == 1) {
Window child = words[0];
if ( words ) { XFree(words); words = 0; }
if (0 == get_xwinprop(child, fl_NET_SUPPORTING_WM_CHECK, 64,
&nitems, &words) ) {
if ( nitems == 1) result = (child == words[0]);
}
}
if ( words ) { XFree(words); words = 0; }
}
return result;
}
int Fl_X::xrender_supported() {
#if HAVE_XRENDER
static int result = -1;
if (result == -1) {
fl_open_display();
int nop1, nop2;
result = XRenderQueryExtension(fl_display, &nop1, &nop2);
}
return result;
#else
return 0;
#endif
}
extern Fl_Window *fl_xfocus;
void Fl_X::activate_window(Window w) {
if (!ewmh_supported())
return;
Window prev = 0;
if (fl_xfocus) {
Fl_X *x = Fl_X::i(fl_xfocus);
if (!x)
return;
prev = x->xid;
}
send_wm_event(w, fl_NET_ACTIVE_WINDOW, 1 /* application */,
0 /* timestamp */, prev /* previously active window */);
}
/* Change an existing window to fullscreen */
void Fl_Window::fullscreen_x() {
if (Fl_X::ewmh_supported()) {
int top, bottom, left, right;
top = fullscreen_screen_top;
bottom = fullscreen_screen_bottom;
left = fullscreen_screen_left;
right = fullscreen_screen_right;
if ((top < 0) || (bottom < 0) || (left < 0) || (right < 0)) {
top = Fl::screen_num(x(), y(), w(), h());
bottom = top;
left = top;
right = top;
}
send_wm_event(fl_xid(this), fl_NET_WM_FULLSCREEN_MONITORS,
top, bottom, left, right);
send_wm_state_event(fl_xid(this), 1, fl_NET_WM_STATE_FULLSCREEN);
} else {
_set_fullscreen();
hide();
show();
/* We want to grab the window, not a widget, so we cannot use Fl::grab */
XGrabKeyboard(fl_display, fl_xid(this), 1, GrabModeAsync, GrabModeAsync, fl_event_time);
Fl::handle(FL_FULLSCREEN, this);
}
}
void Fl_Window::fullscreen_off_x(int X, int Y, int W, int H) {
if (Fl_X::ewmh_supported()) {
send_wm_state_event(fl_xid(this), 0, fl_NET_WM_STATE_FULLSCREEN);
} else {
_clear_fullscreen();
/* The grab will be lost when the window is destroyed */
hide();
resize(X,Y,W,H);
show();
Fl::handle(FL_FULLSCREEN, this);
}
}
////////////////////////////////////////////////////////////////
// A subclass of Fl_Window may call this to associate an X window it
// creates with the Fl_Window:
void fl_fix_focus(); // in Fl.cxx
Fl_X* Fl_X::set_xid(Fl_Window* win, Window winxid) {
Fl_X* xp = new Fl_X;
xp->xid = winxid;
xp->other_xid = 0;
xp->setwindow(win);
xp->next = Fl_X::first;
xp->region = 0;
xp->wait_for_expose = 1;
xp->backbuffer_bad = 1;
Fl_X::first = xp;
if (win->modal()) {Fl::modal_ = win; fl_fix_focus();}
return xp;
}
// More commonly a subclass calls this, because it hides the really
// ugly parts of X and sets all the stuff for a window that is set
// normally. The global variables like fl_show_iconic are so that
// subclasses of *that* class may change the behavior...
char fl_show_iconic; // hack for iconize()
int fl_background_pixel = -1; // hack to speed up bg box drawing
int fl_disable_transient_for; // secret method of removing TRANSIENT_FOR
static const int childEventMask = ExposureMask;
static const int XEventMask =
ExposureMask|StructureNotifyMask
|KeyPressMask|KeyReleaseMask|KeymapStateMask|FocusChangeMask
|ButtonPressMask|ButtonReleaseMask
|EnterWindowMask|LeaveWindowMask
|PropertyChangeMask
|PointerMotionMask;
void Fl_X::make_xid(Fl_Window* win, XVisualInfo *visual, Colormap colormap)
{
Fl_Group::current(0); // get rid of very common user bug: forgot end()
int X = win->x();
int Y = win->y();
int W = win->w();
if (W <= 0) W = 1; // X don't like zero...
int H = win->h();
if (H <= 0) H = 1; // X don't like zero...
if (!win->parent() && !Fl::grab()) {
// center windows in case window manager does not do anything:
#ifdef FL_CENTER_WINDOWS
if (!win->force_position()) {
win->x(X = scr_x+(scr_w-W)/2);
win->y(Y = scr_y+(scr_h-H)/2);
}
#endif // FL_CENTER_WINDOWS
// force the window to be on-screen. Usually the X window manager
// does this, but a few don't, so we do it here for consistency:
int scr_x, scr_y, scr_w, scr_h;
Fl::screen_xywh(scr_x, scr_y, scr_w, scr_h, X, Y, W, H);
if (win->border()) {
// ensure border is on screen:
// (assume extremely minimal dimensions for this border)
const int top = 20;
const int left = 1;
const int right = 1;
const int bottom = 1;
if (X+W+right > scr_x+scr_w) X = scr_x+scr_w-right-W;
if (X-left < scr_x) X = scr_x+left;
if (Y+H+bottom > scr_y+scr_h) Y = scr_y+scr_h-bottom-H;
if (Y-top < scr_y) Y = scr_y+top;
}
// now insure contents are on-screen (more important than border):
if (X+W > scr_x+scr_w) X = scr_x+scr_w-W;
if (X < scr_x) X = scr_x;
if (Y+H > scr_y+scr_h) Y = scr_y+scr_h-H;
if (Y < scr_y) Y = scr_y;
}
// if the window is a subwindow and our parent is not mapped yet, we
// mark this window visible, so that mapping the parent at a later
// point in time will call this function again to finally map the subwindow.
if (win->parent() && !Fl_X::i(win->window())) {
win->set_visible();
return;
}
// Compute which screen(s) we should be on if we want to go fullscreen
int fullscreen_top, fullscreen_bottom, fullscreen_left, fullscreen_right;
fullscreen_top = win->fullscreen_screen_top;
fullscreen_bottom = win->fullscreen_screen_bottom;
fullscreen_left = win->fullscreen_screen_left;
fullscreen_right = win->fullscreen_screen_right;
if ((fullscreen_top < 0) || (fullscreen_bottom < 0) ||
(fullscreen_left < 0) || (fullscreen_right < 0)) {
fullscreen_top = Fl::screen_num(X, Y, W, H);
fullscreen_bottom = fullscreen_top;
fullscreen_left = fullscreen_top;
fullscreen_right = fullscreen_top;
}
ulong root = win->parent() ?
fl_xid(win->window()) : RootWindow(fl_display, fl_screen);
XSetWindowAttributes attr;
int mask = CWBorderPixel|CWColormap|CWEventMask|CWBitGravity;
attr.event_mask = win->parent() ? childEventMask : XEventMask;
attr.colormap = colormap;
attr.border_pixel = 0;
attr.bit_gravity = 0; // StaticGravity;
if (win->override()) {
attr.override_redirect = 1;
attr.save_under = 1;
mask |= CWOverrideRedirect | CWSaveUnder;
} else attr.override_redirect = 0;
if (Fl::grab()) {
attr.save_under = 1; mask |= CWSaveUnder;
if (!win->border()) {attr.override_redirect = 1; mask |= CWOverrideRedirect;}
}
// For the non-EWMH fullscreen case, we cannot use the code above,
// since we do not want save_under, do not want to turn off the
// border, and cannot grab without an existing window. Besides,
// there is no clear_override().
if (win->fullscreen_active() && !Fl_X::ewmh_supported()) {
int sx, sy, sw, sh;
attr.override_redirect = 1;
mask |= CWOverrideRedirect;
Fl::screen_xywh(sx, sy, sw, sh, fullscreen_left);
X = sx;
Fl::screen_xywh(sx, sy, sw, sh, fullscreen_right);
W = sx + sw - X;
Fl::screen_xywh(sx, sy, sw, sh, fullscreen_top);
Y = sy;
Fl::screen_xywh(sx, sy, sw, sh, fullscreen_bottom);
H = sy + sh - Y;
}
if (fl_background_pixel >= 0) {
attr.background_pixel = fl_background_pixel;
fl_background_pixel = -1;
mask |= CWBackPixel;
}
Fl_X* xp =
set_xid(win, XCreateWindow(fl_display,
root,
X, Y, W, H,
0, // borderwidth
visual->depth,
InputOutput,
visual->visual,
mask, &attr));
int showit = 1;
// Set WM_CLIENT_MACHINE and WM_LOCALE_NAME
XSetWMProperties(fl_display, xp->xid, NULL, NULL, NULL, 0, NULL, NULL, NULL);
// Set _NET_WM_PID
long pid;
pid = getpid();
XChangeProperty(fl_display, xp->xid, fl_NET_WM_PID,
XA_CARDINAL, 32, 0, (unsigned char *)&pid, 1);
if (!win->parent() && !attr.override_redirect) {
// Communicate all kinds 'o junk to the X Window Manager:
win->label(win->label(), win->iconlabel());
XChangeProperty(fl_display, xp->xid, WM_PROTOCOLS,
XA_ATOM, 32, 0, (uchar*)&WM_DELETE_WINDOW, 1);
// send size limits and border:
xp->sendxjunk();
// set the class property, which controls the icon used:
if (win->xclass()) {
char buffer[1024];
const char *xclass = win->xclass();
const int len = strlen(xclass);
// duplicate the xclass string for use as XA_WM_CLASS
strcpy(buffer, xclass);
strcpy(buffer + len + 1, xclass);
// create the capitalized version:
buffer[len + 1] = toupper(buffer[len + 1]);
if (buffer[len + 1] == 'X')
buffer[len + 2] = toupper(buffer[len + 2]);
XChangeProperty(fl_display, xp->xid, XA_WM_CLASS, XA_STRING, 8, 0,
(unsigned char *)buffer, len * 2 + 2);
}
if (win->non_modal() && xp->next && !fl_disable_transient_for) {
// find some other window to be "transient for":
Fl_Window* wp = xp->next->w;
while (wp->parent()) wp = wp->window();
XSetTransientForHint(fl_display, xp->xid, fl_xid(wp));
if (!wp->visible()) showit = 0; // guess that wm will not show it
if (win->modal()) {
Atom net_wm_state = XInternAtom (fl_display, "_NET_WM_STATE", 0);
Atom net_wm_state_skip_taskbar = XInternAtom (fl_display, "_NET_WM_STATE_MODAL", 0);
XChangeProperty (fl_display, xp->xid, net_wm_state, XA_ATOM, 32,
PropModeAppend, (unsigned char*) &net_wm_state_skip_taskbar, 1);
}
}
// Make sure that borderless windows do not show in the task bar
if (!win->border()) {
Atom net_wm_state = XInternAtom (fl_display, "_NET_WM_STATE", 0);
Atom net_wm_state_skip_taskbar = XInternAtom (fl_display, "_NET_WM_STATE_SKIP_TASKBAR", 0);
XChangeProperty (fl_display, xp->xid, net_wm_state, XA_ATOM, 32,
PropModeAppend, (unsigned char*) &net_wm_state_skip_taskbar, 1);
}
// If asked for, create fullscreen
if (win->fullscreen_active() && Fl_X::ewmh_supported()) {
unsigned long data[4];
data[0] = fullscreen_top;
data[1] = fullscreen_bottom;
data[2] = fullscreen_left;
data[3] = fullscreen_right;
XChangeProperty (fl_display, xp->xid, fl_NET_WM_FULLSCREEN_MONITORS, XA_ATOM, 32,
PropModeReplace, (unsigned char*) data, 4);
XChangeProperty (fl_display, xp->xid, fl_NET_WM_STATE, XA_ATOM, 32,
PropModeAppend, (unsigned char*) &fl_NET_WM_STATE_FULLSCREEN, 1);
}
// Make it receptive to DnD:
long version = 4;
XChangeProperty(fl_display, xp->xid, fl_XdndAware,
XA_ATOM, sizeof(int)*8, 0, (unsigned char*)&version, 1);
XWMHints *hints = XAllocWMHints();
hints->input = True;
hints->flags = InputHint;
if (fl_show_iconic) {
hints->flags |= StateHint;
hints->initial_state = IconicState;
fl_show_iconic = 0;
showit = 0;
}
if (win->icon_->legacy_icon) {
hints->icon_pixmap = (Pixmap)win->icon_->legacy_icon;
hints->flags |= IconPixmapHint;
}
XSetWMHints(fl_display, xp->xid, hints);
XFree(hints);
xp->set_icons();
}
// set the window type for menu and tooltip windows to avoid animations (compiz)
if (win->menu_window() || win->tooltip_window()) {
Atom net_wm_type = XInternAtom(fl_display, "_NET_WM_WINDOW_TYPE", False);
Atom net_wm_type_kind = XInternAtom(fl_display, "_NET_WM_WINDOW_TYPE_MENU", False);
XChangeProperty(fl_display, xp->xid, net_wm_type, XA_ATOM, 32, PropModeReplace, (unsigned char*)&net_wm_type_kind, 1);
}
#if HAVE_XFIXES
// register for clipboard change notifications
if (have_xfixes && !win->parent()) {
XFixesSelectSelectionInput(fl_display, xp->xid, XA_PRIMARY,
XFixesSetSelectionOwnerNotifyMask);
XFixesSelectSelectionInput(fl_display, xp->xid, CLIPBOARD,
XFixesSetSelectionOwnerNotifyMask);
}
#endif
if (win->shape_data_) {
win->combine_mask();
}
XMapWindow(fl_display, xp->xid);
if (showit) {
win->set_visible();
int old_event = Fl::e_number;
win->handle(Fl::e_number = FL_SHOW); // get child windows to appear
Fl::e_number = old_event;
win->redraw();
}
// non-EWMH fullscreen case, need grab
if (win->fullscreen_active() && !Fl_X::ewmh_supported()) {
XGrabKeyboard(fl_display, xp->xid, 1, GrabModeAsync, GrabModeAsync, fl_event_time);
}
}
////////////////////////////////////////////////////////////////
// Send X window stuff that can be changed over time:
void Fl_X::sendxjunk() {
if (w->parent() || w->override()) return; // it's not a window manager window!
if (!w->size_range_set) { // default size_range based on resizable():
if (w->resizable()) {
Fl_Widget *o = w->resizable();
int minw = o->w(); if (minw > 100) minw = 100;
int minh = o->h(); if (minh > 100) minh = 100;
w->size_range(w->w() - o->w() + minw, w->h() - o->h() + minh, 0, 0);
} else {
w->size_range(w->w(), w->h(), w->w(), w->h());
}
return; // because this recursively called here
}
XSizeHints *hints = XAllocSizeHints();
// memset(&hints, 0, sizeof(hints)); jreiser suggestion to fix purify?
hints->min_width = w->minw;
hints->min_height = w->minh;
hints->max_width = w->maxw;
hints->max_height = w->maxh;
hints->width_inc = w->dw;
hints->height_inc = w->dh;
hints->win_gravity = StaticGravity;
// see the file /usr/include/X11/Xm/MwmUtil.h:
// fill all fields to avoid bugs in kwm and perhaps other window managers:
// 0, MWM_FUNC_ALL, MWM_DECOR_ALL
long prop[5] = {0, 1, 1, 0, 0};
if (hints->min_width != hints->max_width ||
hints->min_height != hints->max_height) { // resizable
hints->flags = PMinSize|PWinGravity;
if (hints->max_width >= hints->min_width ||
hints->max_height >= hints->min_height) {
hints->flags = PMinSize|PMaxSize|PWinGravity;
// unfortunately we can't set just one maximum size. Guess a
// value for the other one. Some window managers will make the
// window fit on screen when maximized, others will put it off screen:
if (hints->max_width < hints->min_width) hints->max_width = Fl::w();
if (hints->max_height < hints->min_height) hints->max_height = Fl::h();
}
if (hints->width_inc && hints->height_inc) hints->flags |= PResizeInc;
if (w->aspect) {
// stupid X! It could insist that the corner go on the
// straight line between min and max...
hints->min_aspect.x = hints->max_aspect.x = hints->min_width;
hints->min_aspect.y = hints->max_aspect.y = hints->min_height;
hints->flags |= PAspect;
}
} else { // not resizable:
hints->flags = PMinSize|PMaxSize|PWinGravity;
prop[0] = 1; // MWM_HINTS_FUNCTIONS
prop[1] = 1|2|16; // MWM_FUNC_ALL | MWM_FUNC_RESIZE | MWM_FUNC_MAXIMIZE
}
if (w->force_position()) {
hints->flags |= USPosition;
hints->x = w->x();
hints->y = w->y();
}
if (!w->border()) {
prop[0] |= 2; // MWM_HINTS_DECORATIONS
prop[2] = 0; // no decorations
}
XSetWMNormalHints(fl_display, xid, hints);
XChangeProperty(fl_display, xid,
fl_MOTIF_WM_HINTS, fl_MOTIF_WM_HINTS,
32, 0, (unsigned char *)prop, 5);
XFree(hints);
}
void Fl_Window::size_range_() {
size_range_set = 1;
if (shown()) i->sendxjunk();
}
////////////////////////////////////////////////////////////////
static unsigned long *default_net_wm_icons = 0L;
static size_t default_net_wm_icons_size = 0;
// Note: icons[] *must* contain at least <count> valid image pointers (!NULL),
// but: <count> *may* be 0
static void icons_to_property(const Fl_RGB_Image *icons[], int count,
unsigned long **property, size_t *len) {
size_t sz;
unsigned long *data;
sz = 0;
for (int i = 0;i < count;i++)
sz += 2 + icons[i]->w() * icons[i]->h();
// FIXME: Might want to sort the icons
*property = data = new unsigned long[sz];
*len = sz;
for (int i = 0;i < count;i++) {
const Fl_RGB_Image *image;
image = icons[i];
data[0] = image->w();
data[1] = image->h();
data += 2;
const int extra_data = image->ld() ? (image->ld()-image->w()*image->d()) : 0;
const uchar *in = (const uchar*)*image->data();
for (int y = 0; y < image->h(); y++) {
for (int x = 0; x < image->w(); x++) {
switch (image->d()) {
case 1:
*data = ( 0xff<<24) | (in[0]<<16) | (in[0]<<8) | in[0];
break;
case 2:
*data = (in[1]<<24) | (in[0]<<16) | (in[0]<<8) | in[0];
break;
case 3:
*data = ( 0xff<<24) | (in[0]<<16) | (in[1]<<8) | in[2];
break;
case 4:
*data = (in[3]<<24) | (in[0]<<16) | (in[1]<<8) | in[2];
break;
}
in += image->d();
data++;
}
in += extra_data;
}
}
}
void Fl_X::set_default_icons(const Fl_RGB_Image *icons[], int count) {
if (default_net_wm_icons) {
delete [] default_net_wm_icons;
default_net_wm_icons = 0L;
default_net_wm_icons_size = 0;
}
if (count > 0)
icons_to_property(icons, count,
&default_net_wm_icons, &default_net_wm_icons_size);
}
void Fl_X::set_icons() {
unsigned long *net_wm_icons;
size_t net_wm_icons_size;
if (w->icon_->count) {
icons_to_property((const Fl_RGB_Image **)w->icon_->icons, w->icon_->count,
&net_wm_icons, &net_wm_icons_size);
} else {
net_wm_icons = default_net_wm_icons;
net_wm_icons_size = default_net_wm_icons_size;
}
XChangeProperty (fl_display, xid, fl_NET_WM_ICON, XA_CARDINAL, 32,
PropModeReplace, (unsigned char*) net_wm_icons, net_wm_icons_size);
if (w->icon_->count) {
delete [] net_wm_icons;
net_wm_icons = 0L;
net_wm_icons_size = 0;
}
}
////////////////////////////////////////////////////////////////
int Fl_X::set_cursor(Fl_Cursor c) {
/* The cursors are cached, because creating one takes 0.5ms including
opening, reading, and closing theme files. They are kept until program
exit by design, which valgrind will note as reachable. */
static Cursor xc_arrow = None;
static Cursor xc_cross = None;
static Cursor xc_wait = None;
static Cursor xc_insert = None;
static Cursor xc_hand = None;
static Cursor xc_help = None;
static Cursor xc_move = None;
static Cursor xc_ns = None;
static Cursor xc_we = None;
static Cursor xc_ne = None;
static Cursor xc_n = None;
static Cursor xc_nw = None;
static Cursor xc_e = None;
static Cursor xc_w = None;
static Cursor xc_se = None;
static Cursor xc_s = None;
static Cursor xc_sw = None;
Cursor xc;
#define cache_cursor(name, var) if (var == None) { \
var = XCreateFontCursor(fl_display, name); \
} \
xc = var
switch (c) {
case FL_CURSOR_ARROW: cache_cursor(XC_left_ptr, xc_arrow); break;
case FL_CURSOR_CROSS: cache_cursor(XC_tcross, xc_cross); break;
case FL_CURSOR_WAIT: cache_cursor(XC_watch, xc_wait); break;
case FL_CURSOR_INSERT: cache_cursor(XC_xterm, xc_insert); break;
case FL_CURSOR_HAND: cache_cursor(XC_hand2, xc_hand); break;
case FL_CURSOR_HELP: cache_cursor(XC_question_arrow, xc_help); break;
case FL_CURSOR_MOVE: cache_cursor(XC_fleur, xc_move); break;
case FL_CURSOR_NS: cache_cursor(XC_sb_v_double_arrow, xc_ns); break;
case FL_CURSOR_WE: cache_cursor(XC_sb_h_double_arrow, xc_we); break;
case FL_CURSOR_NE: cache_cursor(XC_top_right_corner, xc_ne); break;
case FL_CURSOR_N: cache_cursor(XC_top_side, xc_n); break;
case FL_CURSOR_NW: cache_cursor(XC_top_left_corner, xc_nw); break;
case FL_CURSOR_E: cache_cursor(XC_right_side, xc_e); break;
case FL_CURSOR_W: cache_cursor(XC_left_side, xc_w); break;
case FL_CURSOR_SE: cache_cursor(XC_bottom_right_corner, xc_se); break;
case FL_CURSOR_S: cache_cursor(XC_bottom_side, xc_s); break;
case FL_CURSOR_SW: cache_cursor(XC_bottom_left_corner, xc_sw); break;
default:
return 0;
}
#undef cache_cursor
XDefineCursor(fl_display, xid, xc);
return 1;
}
int Fl_X::set_cursor(const Fl_RGB_Image *image, int hotx, int hoty) {
#if ! HAVE_XCURSOR
return 0;
#else
XcursorImage *cursor;
Cursor xc;
if ((hotx < 0) || (hotx >= image->w()))
return 0;
if ((hoty < 0) || (hoty >= image->h()))
return 0;
cursor = XcursorImageCreate(image->w(), image->h());
if (!cursor)
return 0;
const int extra_data = image->ld() ? (image->ld()-image->w()*image->d()) : 0;
const uchar *i = (const uchar*)*image->data();
XcursorPixel *o = cursor->pixels;
for (int y = 0;y < image->h();y++) {
for (int x = 0;x < image->w();x++) {
switch (image->d()) {
case 1:
*o = (0xff<<24) | (i[0]<<16) | (i[0]<<8) | i[0];
break;
case 2:
*o = (i[1]<<24) | (i[0]<<16) | (i[0]<<8) | i[0];
break;
case 3:
*o = (0xff<<24) | (i[0]<<16) | (i[1]<<8) | i[2];
break;
case 4:
*o = (i[3]<<24) | (i[0]<<16) | (i[1]<<8) | i[2];
break;
}
i += image->d();
o++;
}
i += extra_data;
}
cursor->xhot = hotx;
cursor->yhot = hoty;
xc = XcursorImageLoadCursor(fl_display, cursor);
XDefineCursor(fl_display, xid, xc);
XFreeCursor(fl_display, xc);
XcursorImageDestroy(cursor);
return 1;
#endif
}
////////////////////////////////////////////////////////////////
// returns pointer to the filename, or null if name ends with '/'
const char *fl_filename_name(const char *name) {
const char *p,*q;
if (!name) return (0);
for (p=q=name; *p;) if (*p++ == '/') q = p;
return q;
}
void Fl_Window::label(const char *name,const char *iname) {
Fl_Widget::label(name);
iconlabel_ = iname;
if (shown() && !parent()) {
if (!name) name = "";
int namelen = strlen(name);
if (!iname) iname = fl_filename_name(name);
int inamelen = strlen(iname);
XChangeProperty(fl_display, i->xid, fl_NET_WM_NAME, fl_XaUtf8String, 8, 0, (uchar*)name, namelen); // utf8
XChangeProperty(fl_display, i->xid, XA_WM_NAME, XA_STRING, 8, 0, (uchar*)name, namelen); // non-utf8
XChangeProperty(fl_display, i->xid, fl_NET_WM_ICON_NAME, fl_XaUtf8String, 8, 0, (uchar*)iname, inamelen); // utf8
XChangeProperty(fl_display, i->xid, XA_WM_ICON_NAME, XA_STRING, 8, 0, (uchar*)iname, inamelen); // non-utf8
}
}
////////////////////////////////////////////////////////////////
// Implement the virtual functions for the base Fl_Window class:
// If the box is a filled rectangle, we can make the redisplay *look*
// faster by using X's background pixel erasing. We can make it
// actually *be* faster by drawing the frame only, this is done by
// setting fl_boxcheat, which is seen by code in fl_drawbox.cxx:
//
// On XFree86 (and prehaps all X's) this has a problem if the window
// is resized while a save-behind window is atop it. The previous
// contents are restored to the area, but this assumes the area
// is cleared to background color. So this is disabled in this version.
// Fl_Window *fl_boxcheat;
static inline int can_boxcheat(uchar b) {return (b==1 || ((b&2) && b<=15));}
void Fl_Window::show() {
image(Fl::scheme_bg_);
if (Fl::scheme_bg_) {
labeltype(FL_NORMAL_LABEL);
align(FL_ALIGN_CENTER | FL_ALIGN_INSIDE | FL_ALIGN_CLIP);
} else {
labeltype(FL_NO_LABEL);
}
Fl_Tooltip::exit(this);
if (!shown()) {
fl_open_display();
// Don't set background pixel for double-buffered windows...
if (type() != FL_DOUBLE_WINDOW && can_boxcheat(box())) {
fl_background_pixel = int(fl_xpixel(color()));
}
Fl_X::make_xid(this);
} else {
XMapRaised(fl_display, i->xid);
}
#ifdef USE_PRINT_BUTTON
void preparePrintFront(void);
preparePrintFront();
#endif
}
Window fl_window;
Fl_Window *Fl_Window::current_;
GC fl_gc;
// make X drawing go into this window (called by subclass flush() impl.)
void Fl_Window::make_current() {
static GC gc; // the GC used by all X windows
if (!shown()) {
fl_alert("Fl_Window::make_current(), but window is not shown().");
Fl::fatal("Fl_Window::make_current(), but window is not shown().");
}
if (!gc) gc = XCreateGC(fl_display, i->xid, 0, 0);
fl_window = i->xid;
fl_gc = gc;
current_ = this;
fl_clip_region(0);
#ifdef FLTK_USE_CAIRO
// update the cairo_t context
if (Fl::cairo_autolink_context()) Fl::cairo_make_current(this);
#endif
}
FL_EXPORT Window fl_xid_(const Fl_Window *w) {
Fl_X *temp = Fl_X::i(w);
return temp ? temp->xid : 0;
}
static void decorated_win_size(Fl_Window *win, int &w, int &h)
{
w = win->w();
h = win->h();
if (!win->shown() || win->parent() || !win->border() || !win->visible()) return;
Window root, parent, *children;
unsigned n = 0;
Status status = XQueryTree(fl_display, Fl_X::i(win)->xid, &root, &parent, &children, &n);
if (status != 0 && n) XFree(children);
// when compiz is used, root and parent are the same window
// and I don't know where to find the window decoration
if (status == 0 || root == parent) return;
XWindowAttributes attributes;
XGetWindowAttributes(fl_display, parent, &attributes);
w = attributes.width;
h = attributes.height;
}
int Fl_Window::decorated_h()
{
int w, h;
decorated_win_size(this, w, h);
return h;
}
int Fl_Window::decorated_w()
{
int w, h;
decorated_win_size(this, w, h);
return w;
}
void Fl_Paged_Device::print_window(Fl_Window *win, int x_offset, int y_offset)
{
if (!win->shown() || win->parent() || !win->border() || !win->visible()) {
this->print_widget(win, x_offset, y_offset);
return;
}
draw_decorated_window(win, x_offset, y_offset, this);
}
void Fl_Paged_Device::draw_decorated_window(Fl_Window *win, int x_offset, int y_offset, Fl_Surface_Device *toset)
{
Fl_Display_Device::display_device()->set_current();
win->show();
Fl::check();
win->make_current();
Window root, parent, *children, child_win, from;
unsigned n = 0;
int bx, bt, do_it;
from = fl_window;
do_it = (XQueryTree(fl_display, fl_window, &root, &parent, &children, &n) != 0 &&
XTranslateCoordinates(fl_display, fl_window, parent, 0, 0, &bx, &bt, &child_win) == True);
if (n) XFree(children);
// hack to bypass STR #2648: when compiz is used, root and parent are the same window
// and I don't know where to find the window decoration
if (do_it && root == parent) do_it = 0;
if (!do_it) {
toset->set_current();
this->print_widget(win, x_offset, y_offset);
return;
}
fl_window = parent;
uchar *top_image = 0, *left_image = 0, *right_image = 0, *bottom_image = 0;
top_image = fl_read_image(NULL, 0, 0, - (win->w() + 2 * bx), bt);
if (bx) {
left_image = fl_read_image(NULL, 0, bt, -bx, win->h() + bx);
right_image = fl_read_image(NULL, win->w() + bx, bt, -bx, win->h() + bx);
bottom_image = fl_read_image(NULL, 0, bt + win->h(), -(win->w() + 2*bx), bx);
}
fl_window = from;
toset->set_current();
if (top_image) {
fl_draw_image(top_image, x_offset, y_offset, win->w() + 2 * bx, bt, 3);
delete[] top_image;
}
if (bx) {
if (left_image) fl_draw_image(left_image, x_offset, y_offset + bt, bx, win->h() + bx, 3);
if (right_image) fl_draw_image(right_image, x_offset + win->w() + bx, y_offset + bt, bx, win->h() + bx, 3);
if (bottom_image) fl_draw_image(bottom_image, x_offset, y_offset + bt + win->h(), win->w() + 2*bx, bx, 3);
if (left_image) delete[] left_image;
if (right_image) delete[] right_image;
if (bottom_image) delete[] bottom_image;
}
this->print_widget( win, x_offset + bx, y_offset + bt );
}
#ifdef USE_PRINT_BUTTON
// to test the Fl_Printer class creating a "Print front window" button in a separate window
// contains also preparePrintFront call above
#include <FL/Fl_Printer.H>
#include <FL/Fl_Button.H>
void printFront(Fl_Widget *o, void *data)
{
Fl_Printer printer;
o->window()->hide();
Fl_Window *win = Fl::first_window();
if(!win) return;
int w, h;
if( printer.start_job(1) ) { o->window()->show(); return; }
if( printer.start_page() ) { o->window()->show(); return; }
printer.printable_rect(&w,&h);
// scale the printer device so that the window fits on the page
float scale = 1;
int ww = win->decorated_w();
int wh = win->decorated_h();
if (ww > w || wh > h) {
scale = (float)w/ww;
if ((float)h/wh < scale) scale = (float)h/wh;
printer.scale(scale, scale);
}
// #define ROTATE 20.0
#ifdef ROTATE
printer.scale(scale * 0.8, scale * 0.8);
printer.printable_rect(&w, &h);
printer.origin(w/2, h/2 );
printer.rotate(ROTATE);
printer.print_widget( win, - win->w()/2, - win->h()/2 );
//printer.print_window_part( win, 0,0, win->w(), win->h(), - win->w()/2, - win->h()/2 );
#else
printer.print_window(win);
#endif
printer.end_page();
printer.end_job();
o->window()->show();
}
#include <FL/Fl_Copy_Surface.H>
void copyFront(Fl_Widget *o, void *data)
{
o->window()->hide();
Fl_Window *win = Fl::first_window();
if (!win) return;
Fl_Copy_Surface *surf = new Fl_Copy_Surface(win->decorated_w(), win->decorated_h());
surf->set_current();
surf->draw_decorated_window(win); // draw the window content
delete surf; // put the window on the clipboard
o->window()->show();
}
void preparePrintFront(void)
{
static int first=1;
if(!first) return;
first=0;
static Fl_Window w(0,0,140,60);
static Fl_Button bp(0,0,w.w(),30, "Print front window");
bp.callback(printFront);
static Fl_Button bc(0,30,w.w(),30, "Copy front window");
bc.callback(copyFront);
w.end();
w.show();
}
#endif // USE_PRINT_BUTTON
#endif
//
// End of "$Id$".
//