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fltk/test/demo.cxx

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//
// "$Id$"
//
// Main demo program for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2018 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:
//
// https://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
// https://www.fltk.org/str.php
//
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
// *FIXME*
// Implement fl_putenv(). Then remove the following comment
// and the #define's of fl_putenv below
// Visual C++ 2005 incorrectly displays a warning about the use of
// POSIX APIs on Windows, which is supposed to be POSIX compliant...
#if defined(_MSC_VER)
# define fl_putenv _putenv
#else
# define fl_putenv putenv
#endif // _MSC_VER
// *FIXME* To do:
// Check whether '#include <unistd.h>' can be removed since chdir()
// has been replaced with fl_chdir() (AlbrechtS, Nov 12, 2017)
#if defined __APPLE__
#include <ApplicationServices/ApplicationServices.h>
#include <unistd.h> // no longer necessary with fl_chdir() ?
#endif
#include <FL/Fl.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Choice.H>
#include <FL/filename.H>
#include <FL/platform.H>
/* Define a macro to decide if a trailing 'd' needs to be removed
from the executable file name. Previous versions of Visual Studio
added a 'd' to the executable file name ('demod.exe') in Debug
configurations that needed to be removed.
This is no longer true with CMake-generated IDE's since FLTK 1.4.
The 'old' behavior obviously applied or still applies to
CodeWarrior (__MWERKS__).
*FIXME* is this still true and necessary?
*/
// #if ( defined _MSC_VER || defined __MWERKS__ ) && defined _DEBUG
#if defined(_WIN32) && defined(__MWERKS__) && defined(_DEBUG)
# define DEBUG_EXE_WITH_D 1
#else
# define DEBUG_EXE_WITH_D 0
#endif
/* The form description */
void doexit(Fl_Widget *, void *);
void doback(Fl_Widget *, void *);
void dobut(Fl_Widget *, long);
void doscheme(Fl_Choice *c, void *) {
Fl::scheme(c->text(c->value()));
}
Fl_Double_Window *form;
Fl_Button *but[9];
void create_the_forms() {
Fl_Widget *obj;
form = new Fl_Double_Window(350, 440);
obj = new Fl_Box(FL_FRAME_BOX,10,15,330,40,"FLTK Demonstration");
obj->color(FL_GRAY-4);
obj->labelsize(24);
obj->labelfont(FL_BOLD);
obj->labeltype(FL_ENGRAVED_LABEL);
obj = new Fl_Box(FL_FRAME_BOX,10,65,330,330,0);
obj->color(FL_GRAY-8);
obj = new Fl_Button(280,405,60,25,"Exit");
obj->callback(doexit);
Fl_Choice *choice = new Fl_Choice(75, 405, 100, 25, "Scheme:");
choice->labelfont(FL_HELVETICA_BOLD);
choice->add("none");
choice->add("gtk+");
choice->add("gleam");
choice->add("plastic");
choice->callback((Fl_Callback *)doscheme);
Fl::scheme(NULL);
if (!Fl::scheme()) choice->value(0);
else if (!strcmp(Fl::scheme(), "gtk+")) choice->value(1);
else if (!strcmp(Fl::scheme(), "gleam")) choice->value(2);
else if (!strcmp(Fl::scheme(), "plastic")) choice->value(3);
else choice->value(0);
obj = new Fl_Button(10,15,330,380); obj->type(FL_HIDDEN_BUTTON);
obj->callback(doback);
obj = but[0] = new Fl_Button( 30, 85,90,90);
obj = but[1] = new Fl_Button(130, 85,90,90);
obj = but[2] = new Fl_Button(230, 85,90,90);
obj = but[3] = new Fl_Button( 30,185,90,90);
obj = but[4] = new Fl_Button(130,185,90,90);
obj = but[5] = new Fl_Button(230,185,90,90);
obj = but[6] = new Fl_Button( 30,285,90,90);
obj = but[7] = new Fl_Button(130,285,90,90);
obj = but[8] = new Fl_Button(230,285,90,90);
for (int i=0; i<9; i++) {
but[i]->align(FL_ALIGN_WRAP);
but[i]->callback(dobut, i);
}
form->end();
}
/* Maintaining and building up the menus. */
typedef struct {
char name[64];
int numb;
char iname[9][64];
char icommand[9][64];
} MENU;
#define MAXMENU 32
MENU menus[MAXMENU];
int mennumb = 0;
/* Return the number of a given menu name. */
int find_menu(const char* nnn) {
int i;
for (i=0; i<mennumb; i++)
if (strcmp(menus[i].name,nnn) == 0) return i;
return -1;
}
/* Create a new menu with name nnn */
void create_menu(const char* nnn) {
if (mennumb == MAXMENU -1) return;
strcpy(menus[mennumb].name,nnn);
menus[mennumb].numb = 0;
mennumb++;
}
/* Add an item to a menu */
void addto_menu(const char* men, const char* item, const char* comm) {
int n = find_menu(men);
if (n<0) { create_menu(men); n = find_menu(men); }
if (menus[n].numb == 9) return;
strcpy(menus[n].iname[menus[n].numb],item);
strcpy(menus[n].icommand[menus[n].numb],comm);
menus[n].numb++;
}
/* Button to Item conversion and back. */
int b2n[][9] = {
{ -1, -1, -1, -1, 0, -1, -1, -1, -1},
{ -1, -1, -1, 0, -1, 1, -1, -1, -1},
{ 0, -1, -1, -1, 1, -1, -1, -1, 2},
{ 0, -1, 1, -1, -1, -1, 2, -1, 3},
{ 0, -1, 1, -1, 2, -1, 3, -1, 4},
{ 0, -1, 1, 2, -1, 3, 4, -1, 5},
{ 0, -1, 1, 2, 3, 4, 5, -1, 6},
{ 0, 1, 2, 3, -1, 4, 5, 6, 7},
{ 0, 1, 2, 3, 4, 5, 6, 7, 8}
};
int n2b[][9] = {
{ 4, -1, -1, -1, -1, -1, -1, -1, -1},
{ 3, 5, -1, -1, -1, -1, -1, -1, -1},
{ 0, 4, 8, -1, -1, -1, -1, -1, -1},
{ 0, 2, 6, 8, -1, -1, -1, -1, -1},
{ 0, 2, 4, 6, 8, -1, -1, -1, -1},
{ 0, 2, 3, 5, 6, 8, -1, -1, -1},
{ 0, 2, 3, 4, 5, 6, 8, -1, -1},
{ 0, 1, 2, 3, 5, 6, 7, 8, -1},
{ 0, 1, 2, 3, 4, 5, 6, 7, 8}
};
/* Transform a button number to an item number when there are
maxnumb items in total. -1 if the button should not exist. */
int but2numb(int bnumb, int maxnumb)
{ return b2n[maxnumb][bnumb]; }
/* Transform an item number to a button number when there are
maxnumb items in total. -1 if the item should not exist. */
int numb2but(int inumb, int maxnumb)
{ return n2b[maxnumb][inumb]; }
/* Pushing and Popping menus */
char stack[64][32];
int stsize = 0;
/* Push a menu to be visible */
void push_menu(const char* nnn) {
int n,i,bn;
int men = find_menu(nnn);
if (men < 0) return;
n = menus[men].numb;
for (i=0; i<9; i++) but[i]->hide();
for (i=0; i<n; i++)
{
bn = numb2but(i,n-1);
but[bn]->show();
but[bn]->label(menus[men].iname[i]);
if (menus[men].icommand[i][0] != '@') but[bn]->tooltip(menus[men].icommand[i]);
else but[bn]->tooltip(0);
}
if (stack[stsize]!=nnn)
strcpy(stack[stsize],nnn);
stsize++;
}
/* Pop a menu */
void pop_menu() {
if (stsize<=1) return;
stsize -= 2;
push_menu(stack[stsize]);
}
/* The callback Routines */
/* Handle a button push */
void dobut(Fl_Widget *, long arg) {
int men = find_menu(stack[stsize-1]);
int n = menus[men].numb;
int bn = but2numb( (int) arg, n-1);
if (menus[men].icommand[bn][0] == '@') {
push_menu(menus[men].icommand[bn]);
} else {
#ifdef _WIN32
STARTUPINFO suInfo; // Process startup information
PROCESS_INFORMATION prInfo; // Process information
# if DEBUG_EXE_WITH_D
const char *exe = "d.exe"; // exe name with trailing 'd'
# else
const char *exe = ".exe"; // exe name w/o trailing 'd'
# endif
memset(&suInfo, 0, sizeof(suInfo));
suInfo.cb = sizeof(suInfo);
int icommand_length = strlen(menus[men].icommand[bn]);
char* copy_of_icommand = new char[icommand_length+1];
strcpy(copy_of_icommand,menus[men].icommand[bn]);
// On Windows the .exe suffix needs to be appended to the command
// whilst leaving any additional parameters unchanged - this
// is required to handle the correct conversion of cases such as :
// `../fluid/fluid valuators.fl' to '../fluid/fluid.exe valuators.fl'.
// skip leading spaces.
char* start_command = copy_of_icommand;
while (*start_command == ' ') ++start_command;
// find the space between the command and parameters if one exists.
char* start_parameters = strchr(start_command,' ');
char* command = new char[icommand_length+6]; // 6 for extra 'd.exe\0'
if (start_parameters==NULL) { // no parameters required.
sprintf(command, "%s%s", start_command, exe);
} else { // parameters required.
// break the start_command at the intermediate space between
// start_command and start_parameters.
*start_parameters = 0;
// move start_paremeters to skip over the intermediate space.
++start_parameters;
sprintf(command, "%s%s %s", start_command, exe, start_parameters);
}
CreateProcess(NULL, command, NULL, NULL, FALSE,
NORMAL_PRIORITY_CLASS, NULL, NULL, &suInfo, &prInfo);
delete[] command;
delete[] copy_of_icommand;
#elif defined __APPLE__
char *cmd = strdup(menus[men].icommand[bn]);
char *arg = strchr(cmd, ' ');
char command[2048], path[2048], app_path[2048];
// this neat little block of code ensures that the current directory
// is set to the location of the Demo application.
CFBundleRef app = CFBundleGetMainBundle();
CFURLRef url = CFBundleCopyBundleURL(app);
CFStringRef cc_app_path = CFURLCopyFileSystemPath(url, kCFURLPOSIXPathStyle);
CFRelease(url);
CFStringGetCString(cc_app_path, app_path, 2048, kCFStringEncodingUTF8);
CFRelease(cc_app_path);
if (*app_path) {
if (memcmp(app_path + strlen(app_path) - 4, ".app", 4) == 0) {
char *n = strrchr(app_path, '/');
if (n) *n = 0;
}
fl_chdir(app_path);
}
char *name = new char[strlen(cmd) + 5];
strcpy(name, cmd);
if (arg) name[arg-cmd] = 0;
strcat(name, ".app");
// check whether app bundle exists
if ( ! fl_filename_isdir(name) ) strcpy(name, cmd);
if (arg) {
const char *fluidpath;
*arg = 0;
#if defined USING_XCODE
fl_filename_absolute(path, 2048, "../../../../test/");
fluidpath = "fluid.app";
#else
strcpy(path, app_path); strcat(path, "/");
fluidpath = "../fluid/fluid.app";
// check whether fluid bundle exists
if ( ! fl_filename_isdir(fluidpath) ) fluidpath = "../fluid";
#endif
if (strcmp(cmd, "../fluid/fluid")==0) {
sprintf(command, "open %s --args %s%s", fluidpath, path, arg+1);
} else {
sprintf(command, "open %s --args %s%s", name, path, arg+1);
}
} else {
sprintf(command, "open %s", name);
}
delete[] name;
// puts(command);
system(command);
free(cmd);
#else // Non Windows systems.
int icommand_length = strlen(menus[men].icommand[bn]);
char* command = new char[icommand_length+5]; // 5 for extra './' and ' &\0'
sprintf(command, "./%s &", menus[men].icommand[bn]);
if (system(command)==-1) { /* ignore */ }
delete[] command;
#endif // _WIN32
}
}
void doback(Fl_Widget *, void *) {pop_menu();}
void doexit(Fl_Widget *, void *) {exit(0);}
/* Load the menu file. Returns whether successful. */
int load_the_menu(char* fname) {
FILE *fin = 0;
char line[256], mname[64],iname[64],cname[64];
int i, j;
fin = fl_fopen(fname,"r");
#if defined ( __APPLE__ )
if (fin == NULL) {
// mac os bundle menu detection:
char* pos = strrchr(fname,'/');
if (!pos) return 0;
*pos = '\0';
pos = strrchr(fname,'/');
if (!pos) return 0;
strcpy(pos,"/Resources/demo.menu");
fin = fl_fopen(fname,"r");
}
#endif
if (fin == NULL) {
return 0;
}
for (;;) {
if (fgets(line,256,fin) == NULL) break;
// remove all carriage returns that Cygwin may have inserted
char *s = line, *d = line;
for (;;++d) {
while (*s=='\r') s++;
*d = *s++;
if (!*d) break;
}
// interpret the line
j = 0; i = 0;
while (line[i] == ' ' || line[i] == '\t') i++;
if (line[i] == '\n') continue;
if (line[i] == '#') continue;
while (line[i] != ':' && line[i] != '\n') mname[j++] = line[i++];
mname[j] = '\0';
if (line[i] == ':') i++;
j = 0;
while (line[i] != ':' && line[i] != '\n') {
if (line[i] == '\\') {
i++;
if (line[i] == 'n') iname[j++] = '\n';
else iname[j++] = line[i];
i++;
} else
iname[j++] = line[i++];
}
iname[j] = '\0';
if (line[i] == ':') i++;
j = 0;
while (line[i] != ':' && line[i] != '\n') cname[j++] = line[i++];
cname[j] = '\0';
addto_menu(mname,iname,cname);
}
fclose(fin);
return 1;
}
int main(int argc, char **argv) {
fl_putenv((char *)"FLTK_DOCDIR=../documentation/html");
char buf[FL_PATH_MAX];
strcpy(buf, argv[0]);
#if DEBUG_EXE_WITH_D
// MS_VisualC appends a 'd' to debugging executables. Remove it.
fl_filename_setext( buf, "" );
buf[ strlen(buf)-1 ] = 0;
#endif
fl_filename_setext(buf,".menu");
char *fname = buf;
int i = 0;
if (!Fl::args(argc,argv,i) || i < argc-1)
Fl::fatal("Usage: %s <switches> <menufile>\n%s",argv[0],Fl::help);
if (i < argc) fname = argv[i];
create_the_forms();
if (!load_the_menu(fname)) Fl::fatal("Can't open %s",fname);
if (buf != fname)
strcpy(buf,fname);
const char *c = fl_filename_name(buf);
if (c > buf) {
buf[c-buf] = 0;
if (fl_chdir(buf) == -1) { /* ignore */ }
}
push_menu("@main");
form->show(argc,argv);
Fl::run();
return 0;
}
//
// End of "$Id$".
//
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