/*
*
* wmGrabImage-1.00 (C) 1999 Mike Henderson (mghenderson@lanl.gov)
*
* - Monitors an image on the WWW in a WindowMaker DockApp
*
*
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program (see the file COPYING); if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA
*
*
* Platforms tested on: Linux, Solaris 2.6, IRIX 6.5
*
*
* ToDo: Add inicator to show if image is uptodate or not
* Get rid of GrabImage and put all that stuff in wmGrabImage.c
* Center image in icon - this info should be in the returned Attributes struct.
* etc...
*
* I am still not sure we are handling color resources properly... Seems to work OK on my 24-bit displays...
*
*
*
*
* Changes:
* Version 0.72 - May 27, 2001
* Fixed resource leak (XFreeColors)
*
* Version 0.71 - May 24, 2001
* Added support for "zooming" the icon display
* on a region
*
* Version 0.70 - March 28, 1999.
* Added support for local images (e.g. file:///home/mgh/junk.gif.)
*
* Version 0.66 - February 23, 1999.
* Added help line for -delay option. And added a man page.
*
* Version 0.65 - February 11, 1999.
* Now starts netscape if not already running...
*
* Version 0.64 - February 9, 1999.
* Added command-line option for "Time between updates"
*
* Version 0.63 - February 9, 1999.
* Fixed (potential) memory leak in the ShapeMask Pixmap
* (gets returned only if color None is used in xpm file)
* Added XFreeColors call.
*
* Version 0.62 - February 4, 1999.
* buf fixes. Added -c option to center vertically.
*
*
* Version 0.61 - February 2, 1999.
* Added Attributes support for Xpm Creation.
* Also, added a kludge to GrabImage to stream edit
* any "Transparent" colors that may get generated. (Change them
* to black.)
*
* Version 0.6 - February 2, 1999.
* Some bug fixes. Added Double click support.
* Now, DoubleClick's do the following:
*
* Button1: display original size image via xv.
*
* Button2: send another URL (specified with the -http
* command line option) to netscape.
*
* Button3: Force Update.
*
*
* Version 0.5 - initial (very) beta release February 1, 1999.
*
*
*/
/*
* Includes
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <X11/X.h>
#include <X11/xpm.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "../wmgeneral/wmgeneral.h"
#include "wmGrabImage_master.xpm"
#include "wmGrabImage_mask.xbm"
/*
* Delay between refreshes (in microseconds)
*/
#define DELAY 10000L
#define WMGRABIMAGE_VERSION "0.72"
void ParseCMDLine(int argc, char *argv[]);
void pressEvent(XButtonEvent *xev);
void print_usage();
char ImageURL[1024], XpmFileName[256], ImageFileName[1024];
char HttpURL[1024];
char *ConvertGeometry= NULL;
int UpToDate = 0;
int ForceUpdate = 1;
int ForceUpdate2 = 1;
int GotFirstClick1, GotDoubleClick1;
int GotFirstClick2, GotDoubleClick2;
int GotFirstClick3, GotDoubleClick3;
int DblClkDelay;
int CenterImage = 0;
long int UpdateDELAY = 600;
/*
* main
*/
int main(int argc, char *argv[]) {
struct tm *gTime, *gmt;
struct stat fi;
XEvent event;
Pixmap NewPixmap, NewShapeMask;
XpmAttributes Attributes;
Colormap cmap;
int n, s, m, dt1, dt2, dt3, len;
int Year, Month, Day;
int Hours, Mins, Secs;
int i, j, Width, Height, yoff, fd, Flag;
long CurrentLocalTime;
double UT, hour24(), jd(), CurrentJD, OldFileUT, FileUT;
char command[1040], ImageName[256];
int havePixmap= 0;
/*
* Parse any command line arguments.
*/
ParseCMDLine(argc, argv);
/*
* Figure out what the name of the image xpm file should be...
*/
len = strlen(ImageURL);
for (j = 0, i=0; i<len; ++i){ if (ImageURL[i] == '/') j = i; }
strcpy(ImageName, ImageURL+j+1);
sprintf(XpmFileName, "%s/.wmGrabImage/%s.xpm", getenv("HOME"), ImageName);
sprintf(ImageFileName, "%s/.wmGrabImage/%s", getenv("HOME"), ImageName);
openXwindow(argc, argv, wmGrabImage_master, wmGrabImage_mask_bits, wmGrabImage_mask_width, wmGrabImage_mask_height);
cmap = DefaultColormap(display, DefaultScreen(display));
/*
* Loop until we die
*/
n = 32000;
s = 32000;
m = 32000;
dt1 = 32000;
dt2 = 32000;
dt3 = 32000;
DblClkDelay = 32000;
UpToDate = 0;
FileUT = -999.0;
Flag = 1;
NewShapeMask = 0;
Attributes.nalloc_pixels = 0;
while(1) {
/*
* Keep track of # of seconds
*/
if (m > 100){
m = 0;
++dt1;
++dt2;
++dt3;
} else {
/*
* Increment counter
*/
++m;
}
/*
* Double Click Delays
* Keep track of click events. If Delay too long, set GotFirstClick's to False.
*/
if (DblClkDelay > 15) {
DblClkDelay = 0;
GotFirstClick1 = 0; GotDoubleClick1 = 0;
GotFirstClick2 = 0; GotDoubleClick2 = 0;
GotFirstClick3 = 0; GotDoubleClick3 = 0;
} else {
++DblClkDelay;
}
/*
* Process any pending X events.
*/
while(XPending(display)){
XNextEvent(display, &event);
switch(event.type){
case Expose:
RedrawWindow();
break;
case ButtonPress:
pressEvent(&event.xbutton);
break;
case ButtonRelease:
break;
}
}
/*
* Draw window.
*/
if (ForceUpdate||Flag){
/*
* Compute Current Julian Date
*/
CurrentLocalTime = time(CurrentTime);
gTime = gmtime(&CurrentLocalTime);
Year = gTime->tm_year+1900;
Month = gTime->tm_mon+1;
Day = gTime->tm_mday;
Hours = gTime->tm_hour;
Mins = gTime->tm_min;
Secs = gTime->tm_sec;
UT = (double)Hours + (double)Mins/60.0 + (double)Secs/3600.0;
CurrentJD = jd(Year, Month, Day, UT);
/*
* Clear window.
*/
copyXPMArea(5, 69, 54, 54, 5, 5);
if (havePixmap) {
/*
* free up the colors, if we alloc'd some before
*/
if (Attributes.nalloc_pixels > 0)
XFreeColors(display, cmap, Attributes.alloc_pixels,
Attributes.nalloc_pixels, 0);
/*
* Free last pixmap -- we dont need it anymore...
* A ShapeMask is returned if the Pixmap had the color None used.
* We could probably change Transparent to None to make use of this, but for now,
* lets just ignore it...
*/
if ( NewShapeMask != 0 )
XFreePixmap(display, NewShapeMask);
XFreePixmap(display, NewPixmap);
XpmFreeAttributes(&Attributes);
havePixmap= 0;
}
/*
* Grab new pixmap. Accept a reasonable color match.
*/
Attributes.valuemask = XpmExactColors | XpmCloseness | XpmReturnAllocPixels;
Attributes.exactColors = 0;
Attributes.closeness = 40000;
if (XpmReadFileToPixmap(display, Root, XpmFileName, &NewPixmap, &NewShapeMask, &Attributes) >= 0){
Height = Attributes.height;
Width = Attributes.width;
yoff = (CenterImage) ? (54 - Height)/2 : 0;
XCopyArea(display, NewPixmap, wmgen.pixmap, NormalGC, 0, 0, Width, Height, 5, 5+yoff);
Flag = 0;
ForceUpdate = 0;
havePixmap= 1;
}
/*
* Make changes visible
*/
RedrawWindow();
}
/*
* Check xpm file status
*/
if (dt2 > 1){
dt2 = 0;
if ( (fd = open(XpmFileName, O_RDONLY)) >= 0 ) {
fstat(fd, &fi);
close(fd);
gmt = gmtime(&fi.st_mtime);
OldFileUT = FileUT;
FileUT = (double)gmt->tm_hour + (double)gmt->tm_min/60.0 + (double)gmt->tm_sec/3600.0;
if (FileUT != OldFileUT) ForceUpdate = 1;
}
}
/*
* Check every 5 min if the values are not up to date...
*/
if (ForceUpdate2||(dt3 > UpdateDELAY)){
dt3 = 0;
/*
* Execute Perl script to grab the Latest METAR Report
*/
if (ConvertGeometry != NULL)
sprintf(command, "GrabImage %s %s &", ImageURL, ConvertGeometry);
else
sprintf(command, "GrabImage %s &", ImageURL);
system(command);
ForceUpdate = 1;
ForceUpdate2 = 0;
}
/*
* Wait for next update
*/
usleep(DELAY);
}
}
/*
* ParseCMDLine()
*/
void ParseCMDLine(int argc, char *argv[]) {
int i;
ImageURL[0] = '\0';
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "-display")){
++i;
} else if ((!strcmp(argv[i], "-url"))||(!strcmp(argv[i], "-u"))){
strcpy(ImageURL, argv[++i]);
} else if (!strcmp(argv[i], "-delay")){
UpdateDELAY = atol(argv[++i]);
if (UpdateDELAY < 10){
printf("Try a longer delay\n");
exit(-1);
}
} else if (!strcmp(argv[i], "-http")){
strcpy(HttpURL, argv[++i]);
} else if (!strcmp(argv[i], "-geom")){
ConvertGeometry= argv[++i];
} else if (!strcmp(argv[i], "-c")){
CenterImage = 1;
} else {
print_usage();
exit(1);
}
}
if (ImageURL[0] == '\0'){
fprintf(stderr, "You must specify an Image URL\n");
print_usage();
exit(-1);
}
}
void print_usage(){
printf("\nwmGrabImage version: %s\n", WMGRABIMAGE_VERSION);
printf("\nusage: wmGrabImage -u <ImageURL> -http <httpURL> -display <Display>] [-h]\n");
printf("\t\t[-geom <CroppingGeometry>\n\n");
printf("\t-display <Display>\tUse alternate X display.\n");
printf("\t-h\t\t\tDisplay help screen.\n");
printf("\t-url <ImageURL>\t\tThe URL of image to display.\n\n");
printf("\t-delay <Time>\t\tSet time (in seconds) between updates.\n\n");
printf("\t-http <httpURL>\t\tThe URL of the WWW page to send to\n\t\t\t\tnetscape with Button2 double click.\n\n");
printf("\t-c \tCenter the image vertically in the icon.\n\n");
printf("\t-geom <CropGeometry>\tThe geometry to pass to convert\n");
printf("\t\t\t\twhen scaling the image..\n\n");
}
/*
* Compute the Julian Day number for the given date.
* Julian Date is the number of days since noon of Jan 1 4713 B.C.
*/
double jd(ny, nm, nd, UT)
int ny, nm, nd;
double UT;
{
double A, B, C, D, JD, day;
day = nd + UT/24.0;
if ((nm == 1) || (nm == 2)){
ny = ny - 1;
nm = nm + 12;
}
if (((double)ny+nm/12.0+day/365.25)>=(1582.0+10.0/12.0+15.0/365.25)){
A = ((int)(ny / 100.0));
B = 2.0 - A + (int)(A/4.0);
}
else{
B = 0.0;
}
if (ny < 0.0){
C = (int)((365.25*(double)ny) - 0.75);
}
else{
C = (int)(365.25*(double)ny);
}
D = (int)(30.6001*(double)(nm+1));
JD = B + C + D + day + 1720994.5;
return(JD);
}
/*
* This routine handles button presses.
*
* Double click on
* Mouse Button 1: Display full size image with xv.
* Mouse Button 2: Send HttpURL to netscape.
* Mouse Button 3: Update image right away (i.e. grab a new one).
*
*
*/
void pressEvent(XButtonEvent *xev){
char Command[512];
/*
ForceUpdate = 1;
*/
DblClkDelay = 0;
if ((xev->button == Button1) && (xev->type == ButtonPress)){
if (GotFirstClick1) GotDoubleClick1 = 1;
else GotFirstClick1 = 1;
} else if ((xev->button == Button2) && (xev->type == ButtonPress)){
if (GotFirstClick2) GotDoubleClick2 = 1;
else GotFirstClick2 = 1;
} else if ((xev->button == Button3) && (xev->type == ButtonPress)){
if (GotFirstClick3) GotDoubleClick3 = 1;
else GotFirstClick3 = 1;
}
/*
* We got a double click on Mouse Button1 (i.e. the left one)
*/
if (GotDoubleClick1) {
GotFirstClick1 = 0;
GotDoubleClick1 = 0;
sprintf(Command, "xv %s &", ImageFileName);
system(Command);
}
/*
* We got a double click on Mouse Button2 (i.e. the left one)
*/
if (GotDoubleClick2) {
GotFirstClick2 = 0;
GotDoubleClick2 = 0;
sprintf(Command, "netscape -remote 'openURL(%s)' || netscape '%s' &", HttpURL, HttpURL);
system(Command);
}
/*
* We got a double click on Mouse Button3 (i.e. the left one)
*/
if (GotDoubleClick3) {
GotFirstClick3 = 0;
GotDoubleClick3 = 0;
ForceUpdate2 = 1;
}
return;
}