/*
|
/*
|
* Copyright (c) 2000, 2001 Greg Haerr <greg@censoft.com>
|
* Copyright (c) 2000, 2001 Greg Haerr <greg@censoft.com>
|
*
|
*
|
* nxview - Nano-X image viewer
|
* nxview - Nano-X image viewer
|
*
|
*
|
* Autorecognizes and displays BMP, GIF, JPEG, PNG and XPM files
|
* Autorecognizes and displays BMP, GIF, JPEG, PNG and XPM files
|
*/
|
*/
|
#include <stdio.h>
|
#include <stdio.h>
|
#include <stdlib.h>
|
#include <stdlib.h>
|
#include <string.h>
|
#include <string.h>
|
#define MWINCLUDECOLORS
|
#define MWINCLUDECOLORS
|
#include "nano-X.h"
|
#include "nano-X.h"
|
|
|
int
|
int
|
main(int argc,char **argv)
|
main(int argc,char **argv)
|
{
|
{
|
GR_IMAGE_ID image_id;
|
GR_IMAGE_ID image_id;
|
GR_WINDOW_ID window_id;
|
GR_WINDOW_ID window_id;
|
GR_GC_ID gc_id;
|
GR_GC_ID gc_id;
|
GR_SIZE w = -1;
|
GR_SIZE w = -1;
|
GR_SIZE h = -1;
|
GR_SIZE h = -1;
|
GR_EVENT event;
|
GR_EVENT event;
|
GR_SCREEN_INFO sinfo;
|
GR_SCREEN_INFO sinfo;
|
GR_IMAGE_INFO info;
|
GR_IMAGE_INFO info;
|
char title[256];
|
char title[256];
|
|
|
if (argc < 2) {
|
if (argc < 2) {
|
printf("Usage: nxview <image file> [stretch]\n");
|
printf("Usage: nxview <image file> [stretch]\n");
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
if (GrOpen() < 0) {
|
if (GrOpen() < 0) {
|
fprintf(stderr, "cannot open graphics\n");
|
fprintf(stderr, "cannot open graphics\n");
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
if (!(image_id = GrLoadImageFromFile(argv[1], 0))) {
|
if (!(image_id = GrLoadImageFromFile(argv[1], 0))) {
|
fprintf(stderr, "Can't load image file: %s\n", argv[1]);
|
fprintf(stderr, "Can't load image file: %s\n", argv[1]);
|
exit(1);
|
exit(1);
|
}
|
}
|
|
|
if(argc > 2) {
|
if(argc > 2) {
|
/* stretch to half screen size*/
|
/* stretch to half screen size*/
|
GrGetScreenInfo(&sinfo);
|
GrGetScreenInfo(&sinfo);
|
w = sinfo.cols/2;
|
w = sinfo.cols/2;
|
h = sinfo.rows/2;
|
h = sinfo.rows/2;
|
} else {
|
} else {
|
GrGetImageInfo(image_id, &info);
|
GrGetImageInfo(image_id, &info);
|
w = info.width;
|
w = info.width;
|
h = info.height;
|
h = info.height;
|
}
|
}
|
|
|
sprintf(title, "nxview %s", argv[1]);
|
sprintf(title, "nxview %s", argv[1]);
|
window_id = GrNewWindowEx(GR_WM_PROPS_APPWINDOW, title,
|
window_id = GrNewWindowEx(GR_WM_PROPS_APPWINDOW, title,
|
GR_ROOT_WINDOW_ID, 0, 0, w, h, BLACK);
|
GR_ROOT_WINDOW_ID, 0, 0, w, h, BLACK);
|
|
|
GrSelectEvents(window_id,
|
GrSelectEvents(window_id,
|
GR_EVENT_MASK_CLOSE_REQ|GR_EVENT_MASK_EXPOSURE);
|
GR_EVENT_MASK_CLOSE_REQ|GR_EVENT_MASK_EXPOSURE);
|
|
|
GrMapWindow(window_id);
|
GrMapWindow(window_id);
|
|
|
gc_id = GrNewGC();
|
gc_id = GrNewGC();
|
|
|
while (1) {
|
while (1) {
|
GrGetNextEvent(&event);
|
GrGetNextEvent(&event);
|
switch(event.type) {
|
switch(event.type) {
|
case GR_EVENT_TYPE_CLOSE_REQ:
|
case GR_EVENT_TYPE_CLOSE_REQ:
|
GrDestroyWindow(window_id);
|
GrDestroyWindow(window_id);
|
GrDestroyGC(gc_id);
|
GrDestroyGC(gc_id);
|
GrFreeImage(image_id);
|
GrFreeImage(image_id);
|
GrClose();
|
GrClose();
|
exit(0);
|
exit(0);
|
/* no return*/
|
/* no return*/
|
case GR_EVENT_TYPE_EXPOSURE:
|
case GR_EVENT_TYPE_EXPOSURE:
|
GrDrawImageToFit(window_id, gc_id, 0,0, w,h, image_id);
|
GrDrawImageToFit(window_id, gc_id, 0,0, w,h, image_id);
|
break;
|
break;
|
}
|
}
|
}
|
}
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
