forked from old/legacy-imlib2
primitive timeout.. its not even that good.. :)
SVN revision: 1147
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4b69037861
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246
demo/view.c
246
demo/view.c
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@ -7,7 +7,10 @@
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <errno.h>
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#include "Imlib2.h"
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Display *disp;
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@ -135,113 +138,178 @@ main (int argc, char **argv)
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}
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for(;;)
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{
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int x, y, b;
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int x, y, b, count, fdsize, xfd, timeout = 0;
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XEvent ev;
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static int zoom_mode = 0, zx, zy;
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static double zoom = 1.0;
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char aa = 0, dith = 0;
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struct timeval tval;
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fd_set fdset;
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double t1;
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XNextEvent(disp, &ev);
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switch (ev.type)
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XFlush(disp);
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while (XPending(disp))
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{
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case ButtonPress:
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b = ev.xbutton.button;
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x = ev.xbutton.x;
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y = ev.xbutton.y;
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if (b == 3)
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XNextEvent(disp, &ev);
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switch (ev.type)
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{
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zoom_mode = 1;
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zx = x;
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zy = y;
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imlib_render_image_part_on_drawable_at_size
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(bg_im,
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disp, pm, vis, cm, depth,
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0, 1, 0,
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0, 0, image_width, image_height,
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0, 0, image_width, image_height,
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NULL, IMLIB_OP_COPY);
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XSetWindowBackgroundPixmap(disp, win, pm);
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XClearWindow(disp, win);
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}
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break;
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case ButtonRelease:
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b = ev.xbutton.button;
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x = ev.xbutton.x;
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y = ev.xbutton.y;
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if (b == 3)
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zoom_mode = 0;
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if (b == 1)
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{
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no++;
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if (no == argc)
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exit(0);
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file = argv[no];
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image_width = 0;
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zoom = 1.0;
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zoom_mode = 0;
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imlib_free_image_and_decache(im);
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im = imlib_load_image_with_progress_callback(file, progress, 10);
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while (!im)
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case ButtonPress:
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b = ev.xbutton.button;
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x = ev.xbutton.x;
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y = ev.xbutton.y;
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if (b == 3)
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{
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zoom_mode = 1;
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zx = x;
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zy = y;
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imlib_render_image_part_on_drawable_at_size
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(bg_im,
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disp, pm, vis, cm, depth,
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0, 1, 0,
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0, 0, image_width, image_height,
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0, 0, image_width, image_height,
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NULL, IMLIB_OP_COPY);
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XSetWindowBackgroundPixmap(disp, win, pm);
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XClearWindow(disp, win);
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}
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break;
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case ButtonRelease:
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b = ev.xbutton.button;
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x = ev.xbutton.x;
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y = ev.xbutton.y;
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if (b == 3)
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zoom_mode = 0;
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if (b == 1)
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{
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no++;
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if (no == argc)
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exit(0);
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file = argv[no];
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image_width = 0;
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zoom = 1.0;
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zoom_mode = 0;
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imlib_free_image_and_decache(im);
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im = imlib_load_image_with_progress_callback(file, progress, 10);
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while (!im)
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{
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no++;
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if (no == argc)
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exit(0);
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file = argv[no];
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image_width = 0;
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im = imlib_load_image_with_progress_callback(file, progress, 10);
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}
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}
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break;
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case MotionNotify:
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while (XCheckTypedWindowEvent(disp, win, MotionNotify, &ev));
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x = ev.xmotion.x;
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y = ev.xmotion.y;
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if (zoom_mode)
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{
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int sx, sy, sw, sh, dx, dy, dw, dh;
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zoom = ((double)x - (double)zx) / 32.0;
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if (zoom < 0)
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zoom = 1.0 + ((zoom * 32.0) / ((double)(zx + 1)));
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else
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zoom += 1.0;
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if (zoom <= 0.0001)
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zoom = 0.0001;
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if (zoom > 1.0)
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{
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dx = 0;
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dy = 0;
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dw = image_width;
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dh = image_height;
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sx = zx - (zx / zoom);
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sy = zy - (zy / zoom);
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sw = image_width / zoom;
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sh = image_height / zoom;
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}
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else
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{
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dx = zx - (zx * zoom);
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dy = zy - (zy * zoom);
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dw = image_width * zoom;
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dh = image_height * zoom;
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sx = 0;
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sy = 0;
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sw = image_width;
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sh = image_height;
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}
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imlib_render_image_part_on_drawable_at_size
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(bg_im,
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disp, pm, vis, cm, depth,
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aa, dith, 0,
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sx, sy, sw, sh, dx, dy, dw, dh,
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NULL, IMLIB_OP_COPY);
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XSetWindowBackgroundPixmap(disp, win, pm);
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XClearWindow(disp, win);
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timeout = 1;
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}
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default:
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break;
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}
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break;
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case MotionNotify:
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while (XCheckTypedWindowEvent(disp, win, MotionNotify, &ev));
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x = ev.xmotion.x;
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y = ev.xmotion.y;
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if (zoom_mode)
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t1 = 0.5;
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tval.tv_sec = (long)t1;
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tval.tv_usec = (long)((t1 - ((double)tval.tv_sec)) * 1000000);
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xfd = ConnectionNumber(disp);
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fdsize = xfd + 1;
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FD_ZERO(&fdset);
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FD_SET(xfd, &fdset);
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if (timeout)
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count = select(fdsize, &fdset, NULL, NULL, &tval);
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else
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count = select(fdsize, &fdset, NULL, NULL, NULL);
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if (count < 0)
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{
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int sx, sy, sw, sh, dx, dy, dw, dh;
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zoom = ((double)x - (double)zx) / 32.0;
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if (zoom < 0)
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zoom = 1.0 + ((zoom * 32.0) / ((double)(zx + 1)));
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else
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zoom += 1.0;
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if (zoom <= 0.0001)
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zoom = 0.0001;
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if (zoom > 1.0)
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{
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dx = 0;
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dy = 0;
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dw = image_width;
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dh = image_height;
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sx = zx - (zx / zoom);
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sy = zy - (zy / zoom);
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sw = image_width / zoom;
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sh = image_height / zoom;
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}
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else
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{
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dx = zx - (zx * zoom);
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dy = zy - (zy * zoom);
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dw = image_width * zoom;
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dh = image_height * zoom;
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sx = 0;
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sy = 0;
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sw = image_width;
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sh = image_height;
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}
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imlib_render_image_part_on_drawable_at_size
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(bg_im,
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disp, pm, vis, cm, depth,
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aa, dith, 0,
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sx, sy, sw, sh, dx, dy, dw, dh,
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NULL, IMLIB_OP_COPY);
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XSetWindowBackgroundPixmap(disp, win, pm);
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XClearWindow(disp, win);
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if ((errno == ENOMEM) || (errno == EINVAL) || (errno == EBADF))
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exit(1);
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}
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else
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{
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if ((count == 0) && (timeout))
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{
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int sx, sy, sw, sh, dx, dy, dw, dh;
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if (zoom > 1.0)
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{
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dx = 0;
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dy = 0;
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dw = image_width;
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dh = image_height;
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sx = zx - (zx / zoom);
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sy = zy - (zy / zoom);
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sw = image_width / zoom;
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sh = image_height / zoom;
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}
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else
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{
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dx = zx - (zx * zoom);
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dy = zy - (zy * zoom);
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dw = image_width * zoom;
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dh = image_height * zoom;
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sx = 0;
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sy = 0;
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sw = image_width;
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sh = image_height;
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}
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imlib_render_image_part_on_drawable_at_size
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(bg_im,
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disp, pm, vis, cm, depth,
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1, 1, 0,
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sx, sy, sw, sh, dx, dy, dw, dh,
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NULL, IMLIB_OP_COPY);
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XSetWindowBackgroundPixmap(disp, win, pm);
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XClearWindow(disp, win);
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timeout = 0;
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}
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}
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default:
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break;
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}
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}
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