346 lines
12 KiB
C
346 lines
12 KiB
C
#include <X11/Xlib.h>
|
|
#include <X11/extensions/XShm.h>
|
|
#include <X11/Xutil.h>
|
|
#include <X11/extensions/shape.h>
|
|
#include <X11/Xatom.h>
|
|
#include <X11/Xos.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <sys/time.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include "Imlib2.h"
|
|
|
|
Display *disp;
|
|
Window win;
|
|
Pixmap pm = 0;
|
|
Visual *vis;
|
|
Colormap cm;
|
|
int depth;
|
|
int image_width = 0, image_height = 0;
|
|
Imlib_Image bg_im = NULL;
|
|
|
|
static int
|
|
progress(Imlib_Image im, char percent, int update_x, int update_y,
|
|
int update_w, int update_h);
|
|
|
|
static int
|
|
progress(Imlib_Image im, char percent, int update_x, int update_y,
|
|
int update_w, int update_h)
|
|
{
|
|
/* first time it's called */
|
|
imlib_context_set_drawable(pm);
|
|
imlib_context_set_anti_alias(0);
|
|
imlib_context_set_dither(0);
|
|
imlib_context_set_blend(0);
|
|
if (image_width == 0)
|
|
{
|
|
int x, y, onoff;
|
|
|
|
imlib_context_set_image(im);
|
|
image_width = imlib_image_get_width();
|
|
image_height = imlib_image_get_height();
|
|
if (pm)
|
|
XFreePixmap(disp, pm);
|
|
pm = XCreatePixmap(disp, win, image_width, image_height, depth);
|
|
imlib_context_set_drawable(pm);
|
|
if (bg_im)
|
|
{
|
|
imlib_context_set_image(bg_im);
|
|
imlib_free_image_and_decache();
|
|
}
|
|
bg_im = imlib_create_image(image_width, image_height);
|
|
imlib_context_set_image(bg_im);
|
|
for (y = 0; y < image_height; y += 8)
|
|
{
|
|
onoff = (y / 8) & 0x1;
|
|
for (x = 0; x < image_width; x += 8)
|
|
{
|
|
if (onoff)
|
|
imlib_context_set_color(144, 144, 144, 255);
|
|
else
|
|
imlib_context_set_color(100, 100, 100, 255);
|
|
imlib_image_fill_rectangle(x, y, 8, 8);
|
|
onoff++;
|
|
if (onoff == 2)
|
|
onoff = 0;
|
|
}
|
|
}
|
|
imlib_render_image_part_on_drawable_at_size(0, 0, image_width,
|
|
image_height, 0, 0,
|
|
image_width, image_height);
|
|
XSetWindowBackgroundPixmap(disp, win, pm);
|
|
XResizeWindow(disp, win, image_width, image_height);
|
|
XMapWindow(disp, win);
|
|
XSync(disp, False);
|
|
}
|
|
imlib_context_set_anti_alias(0);
|
|
imlib_context_set_dither(0);
|
|
imlib_context_set_blend(1);
|
|
imlib_blend_image_onto_image(im, 0,
|
|
update_x, update_y,
|
|
update_w, update_h,
|
|
update_x, update_y, update_w, update_h);
|
|
imlib_context_set_blend(0);
|
|
imlib_render_image_part_on_drawable_at_size(update_x, update_y,
|
|
update_w, update_h,
|
|
update_x, update_y,
|
|
update_w, update_h);
|
|
XSetWindowBackgroundPixmap(disp, win, pm);
|
|
XClearArea(disp, win, update_x, update_y, update_w, update_h, False);
|
|
XFlush(disp);
|
|
return 1;
|
|
}
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
{
|
|
Imlib_Image *im = NULL;
|
|
char *file = NULL;
|
|
int no = 1;
|
|
|
|
if (argc < 2)
|
|
return 1;
|
|
|
|
file = argv[no];
|
|
disp = XOpenDisplay(NULL);
|
|
vis = DefaultVisual(disp, DefaultScreen(disp));
|
|
depth = DefaultDepth(disp, DefaultScreen(disp));
|
|
cm = DefaultColormap(disp, DefaultScreen(disp));
|
|
win = XCreateSimpleWindow(disp, DefaultRootWindow(disp), 0, 0, 10, 10,
|
|
0, 0, 0);
|
|
XSelectInput(disp, win, ButtonPressMask | ButtonReleaseMask |
|
|
ButtonMotionMask | PointerMotionMask);
|
|
imlib_context_set_display(disp);
|
|
imlib_context_set_visual(vis);
|
|
imlib_context_set_colormap(cm);
|
|
imlib_context_set_progress_function(progress);
|
|
imlib_context_set_progress_granularity(10);
|
|
imlib_context_set_drawable(win);
|
|
im = imlib_load_image(file);
|
|
while (!im)
|
|
{
|
|
no++;
|
|
if (no == argc)
|
|
exit(0);
|
|
file = argv[no];
|
|
image_width = 0;
|
|
im = imlib_load_image(file);
|
|
imlib_context_set_image(im);
|
|
}
|
|
if (!im)
|
|
{
|
|
fprintf(stderr, "Image format not available\n");
|
|
exit(0);
|
|
}
|
|
for (;;)
|
|
{
|
|
int x, y, b, count, fdsize, xfd, timeout = 0;
|
|
XEvent ev;
|
|
static int zoom_mode = 0, zx, zy;
|
|
static double zoom = 1.0;
|
|
struct timeval tval;
|
|
fd_set fdset;
|
|
double t1;
|
|
|
|
XFlush(disp);
|
|
while (XPending(disp))
|
|
{
|
|
XNextEvent(disp, &ev);
|
|
switch (ev.type)
|
|
{
|
|
case ButtonPress:
|
|
b = ev.xbutton.button;
|
|
x = ev.xbutton.x;
|
|
y = ev.xbutton.y;
|
|
if (b == 3)
|
|
{
|
|
zoom_mode = 1;
|
|
zx = x;
|
|
zy = y;
|
|
imlib_context_set_drawable(pm);
|
|
imlib_context_set_image(bg_im);
|
|
imlib_context_set_anti_alias(0);
|
|
imlib_context_set_dither(0);
|
|
imlib_context_set_blend(0);
|
|
imlib_render_image_part_on_drawable_at_size
|
|
(0, 0, image_width, image_height,
|
|
0, 0, image_width, image_height);
|
|
XSetWindowBackgroundPixmap(disp, win, pm);
|
|
XClearWindow(disp, win);
|
|
}
|
|
break;
|
|
case ButtonRelease:
|
|
b = ev.xbutton.button;
|
|
x = ev.xbutton.x;
|
|
y = ev.xbutton.y;
|
|
if (b == 3)
|
|
zoom_mode = 0;
|
|
if (b == 1)
|
|
{
|
|
no++;
|
|
if (no == argc)
|
|
no = argc - 1;
|
|
file = argv[no];
|
|
image_width = 0;
|
|
zoom = 1.0;
|
|
zoom_mode = 0;
|
|
imlib_context_set_image(im);
|
|
imlib_free_image_and_decache();
|
|
im = imlib_load_image(file);
|
|
while (!im)
|
|
{
|
|
no++;
|
|
if (no == argc)
|
|
exit(0);
|
|
file = argv[no];
|
|
image_width = 0;
|
|
im = imlib_load_image(file);
|
|
}
|
|
imlib_context_set_image(im);
|
|
}
|
|
if (b == 2)
|
|
{
|
|
no--;
|
|
if (no == 0)
|
|
no = 1;
|
|
file = argv[no];
|
|
image_width = 0;
|
|
zoom = 1.0;
|
|
zoom_mode = 0;
|
|
imlib_context_set_image(im);
|
|
imlib_free_image_and_decache();
|
|
im = imlib_load_image(file);
|
|
while (!im)
|
|
{
|
|
no--;
|
|
if (no == 0)
|
|
no = 1;
|
|
file = argv[no];
|
|
image_width = 0;
|
|
im = imlib_load_image(file);
|
|
}
|
|
imlib_context_set_image(im);
|
|
}
|
|
break;
|
|
case MotionNotify:
|
|
while (XCheckTypedWindowEvent
|
|
(disp, win, MotionNotify, &ev));
|
|
x = ev.xmotion.x;
|
|
y = ev.xmotion.y;
|
|
if (zoom_mode)
|
|
{
|
|
int sx, sy, sw, sh, dx, dy, dw, dh;
|
|
|
|
zoom = ((double)x - (double)zx) / 32.0;
|
|
if (zoom < 0)
|
|
zoom = 1.0 + ((zoom * 32.0) / ((double)(zx + 1)));
|
|
else
|
|
zoom += 1.0;
|
|
if (zoom <= 0.0001)
|
|
zoom = 0.0001;
|
|
if (zoom > 1.0)
|
|
{
|
|
dx = 0;
|
|
dy = 0;
|
|
dw = image_width;
|
|
dh = image_height;
|
|
|
|
sx = zx - (zx / zoom);
|
|
sy = zy - (zy / zoom);
|
|
sw = image_width / zoom;
|
|
sh = image_height / zoom;
|
|
}
|
|
else
|
|
{
|
|
dx = zx - (zx * zoom);
|
|
dy = zy - (zy * zoom);
|
|
dw = image_width * zoom;
|
|
dh = image_height * zoom;
|
|
|
|
sx = 0;
|
|
sy = 0;
|
|
sw = image_width;
|
|
sh = image_height;
|
|
}
|
|
imlib_context_set_anti_alias(0);
|
|
imlib_context_set_dither(0);
|
|
imlib_context_set_blend(0);
|
|
imlib_context_set_image(bg_im);
|
|
imlib_render_image_part_on_drawable_at_size
|
|
(sx, sy, sw, sh, dx, dy, dw, dh);
|
|
XSetWindowBackgroundPixmap(disp, win, pm);
|
|
XClearWindow(disp, win);
|
|
XFlush(disp);
|
|
timeout = 1;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
t1 = 0.2;
|
|
tval.tv_sec = (long)t1;
|
|
tval.tv_usec = (long)((t1 - ((double)tval.tv_sec)) * 1000000);
|
|
xfd = ConnectionNumber(disp);
|
|
fdsize = xfd + 1;
|
|
FD_ZERO(&fdset);
|
|
FD_SET(xfd, &fdset);
|
|
if (timeout)
|
|
count = select(fdsize, &fdset, NULL, NULL, &tval);
|
|
else
|
|
count = select(fdsize, &fdset, NULL, NULL, NULL);
|
|
if (count < 0)
|
|
{
|
|
if ((errno == ENOMEM) || (errno == EINVAL)
|
|
|| (errno == EBADF))
|
|
exit(1);
|
|
}
|
|
else
|
|
{
|
|
if ((count == 0) && (timeout))
|
|
{
|
|
int sx, sy, sw, sh, dx, dy, dw, dh;
|
|
|
|
if (zoom > 1.0)
|
|
{
|
|
dx = 0;
|
|
dy = 0;
|
|
dw = image_width;
|
|
dh = image_height;
|
|
|
|
sx = zx - (zx / zoom);
|
|
sy = zy - (zy / zoom);
|
|
sw = image_width / zoom;
|
|
sh = image_height / zoom;
|
|
}
|
|
else
|
|
{
|
|
dx = zx - (zx * zoom);
|
|
dy = zy - (zy * zoom);
|
|
dw = image_width * zoom;
|
|
dh = image_height * zoom;
|
|
|
|
sx = 0;
|
|
sy = 0;
|
|
sw = image_width;
|
|
sh = image_height;
|
|
}
|
|
imlib_context_set_anti_alias(1);
|
|
imlib_context_set_dither(1);
|
|
imlib_context_set_blend(0);
|
|
imlib_context_set_image(bg_im);
|
|
imlib_render_image_part_on_drawable_at_size
|
|
(sx, sy, sw, sh, dx, dy, dw, dh);
|
|
XSetWindowBackgroundPixmap(disp, win, pm);
|
|
XClearWindow(disp, win);
|
|
XFlush(disp);
|
|
timeout = 0;
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
return 0;
|
|
}
|