diff options
Diffstat (limited to 'w3mimgdisplay.c')
| -rw-r--r-- | w3mimgdisplay.c | 369 |
1 files changed, 369 insertions, 0 deletions
diff --git a/w3mimgdisplay.c b/w3mimgdisplay.c new file mode 100644 index 0000000..872068a --- /dev/null +++ b/w3mimgdisplay.c @@ -0,0 +1,369 @@ +/* $Id: w3mimgdisplay.c,v 1.1 2002/01/31 17:54:57 ukai Exp $ */ +#include <stdio.h> +#include <stdlib.h> +#include <Imlib.h> + +static Display *display; +static Window window, parent; +static unsigned long background_pixel; +static char *background = NULL; +static int offset_x = 2, offset_y = 2; +static int defined_bg = 0, defined_x = 0, defined_y = 0, defined_test = 0; +static int defined_debug = 0; + +#define MAX_IMAGE 1000 +typedef struct { + Pixmap pixmap; + int width; + int height; +} Image; +static Image *imageBuf = NULL; +static int maxImage = 0; +static GC imageGC = NULL; + +static void GetOption(int argc, char **argv); +static void DrawImage(char *buf, int redraw); +static void ClearImage(void); + +/* *INDENT-OFF* */ +/* + xterm/kterm/hanterm/cxterm + top window (WINDOWID) + +- text window + +- scrollbar + rxvt/aterm/Eterm/wterm + top window (WINDOWID) + +- text window + +- scrollbar + +- menubar (etc.) + gnome-terminal + top window + +- text window (WINDOWID) + +- scrollbar + +- menubar + mlterm (-s) + top window + +- text window (WINDOWID) + +- scrollbar + mlterm + top window = text window (WINDOWID) + + powershell + top window + +- window + | +- text window + | +- scrollbar + +- menubar (etc.) + dtterm + top window + +- window + +- window + | +- window + | +- text window + | +- scrollbar + +- menubar + hpterm + top window + +- window + +- text window + +- scrollbar + +- (etc.) +*/ +/* *INDENT-ON* */ + +int +main(int argc, char **argv) +{ + Window root, *children; + XWindowAttributes attr; + XColor screen_def, exact_def; + int revert, nchildren, len, width, height, i; + char buf[1024 + 128]; + char *id; + + GetOption(argc, argv); + if (!defined_debug) + fclose(stderr); + + display = XOpenDisplay(NULL); + if (!display) + exit(1); + if ((id = getenv("WINDOWID")) != NULL) + window = (Window) atoi(id); + else + XGetInputFocus(display, &window, &revert); + if (!window) + exit(1); + + XGetWindowAttributes(display, window, &attr); + width = attr.width; + height = attr.height; + while (1) { + Window p_window; + + XQueryTree(display, window, &root, &parent, &children, &nchildren); + if (defined_debug) + fprintf(stderr, + "window=%x root=%x parent=%x nchildren=%d width=%d height=%d\n", + window, root, parent, nchildren, width, height); + p_window = window; + for (i = 0; i < nchildren; i++) { + XGetWindowAttributes(display, children[i], &attr); + if (defined_debug) + fprintf(stderr, + "children[%d]=%x x=%d y=%d width=%d height=%d\n", i, + children[i], attr.x, attr.y, attr.width, attr.height); + if (attr.width > width * 0.7 && attr.height > height * 0.7) { + /* maybe text window */ + width = attr.width; + height = attr.height; + window = children[i]; + } + } + if (p_window == window) + break; + } + if (!defined_x) { + for (i = 0; i < nchildren; i++) { + XGetWindowAttributes(display, children[i], &attr); + if (attr.x <= 0 && attr.width < 30 && attr.height > height * 0.7) { + if (defined_debug) + fprintf(stderr, + "children[%d]=%x x=%d y=%d width=%d height=%d\n", + i, children[i], attr.x, attr.y, attr.width, + attr.height); + /* scrollbar of xterm/kterm ? */ + offset_x += attr.x + attr.width + attr.border_width * 2; + break; + } + } + } + + if (defined_test) { + printf("%d %d\n", width - offset_x, height - offset_y); + exit(0); + } + + if (defined_bg && XAllocNamedColor(display, DefaultColormap(display, 0), + background, &screen_def, &exact_def)) + background_pixel = screen_def.pixel; + else { + Pixmap p; + GC gc; + XImage *i; + + p = XCreatePixmap(display, window, 1, 1, DefaultDepth(display, 0)); + gc = XCreateGC(display, window, 0, NULL); + if (!p || !gc) + exit(1); + XCopyArea(display, window, p, gc, (offset_x >= 1) ? (offset_x - 1) : 0, + (offset_y >= 1) ? (offset_y - 1) : 0, 1, 1, 0, 0); + i = XGetImage(display, p, 0, 0, 1, 1, -1, ZPixmap); + if (!i) + exit(1); + background_pixel = XGetPixel(i, 0, 0); + XDestroyImage(i); + XFreeGC(display, gc); + XFreePixmap(display, p); +/* + background_pixel = WhitePixel(display, 0); +*/ + } + + while (fgets(buf, sizeof(buf), stdin) != NULL) { + if (!(isdigit(buf[0]) && buf[1] == ';')) { + fputc('\n', stdout); + fflush(stdout); + continue; + } + len = strlen(buf); + if (buf[len - 1] == '\n') { + buf[--len] = '\0'; + if (buf[len - 1] == '\r') + buf[--len] = '\0'; + } + switch (buf[0]) { + case '0': + DrawImage(&buf[2], 0); + break; + case '1': + DrawImage(&buf[2], 1); + break; + case '2': + ClearImage(); + break; + case '3': + XSync(display, False); + break; + case '4': + fputs("\n", stdout); + fflush(stdout); + break; + } + } + ClearImage(); + /* + * XCloseDisplay(display); + */ + exit(0); +} + +static void +GetOption(int argc, char **argv) +{ + int i; + + for (i = 1; i < argc; i++) { + if (!strcmp("-bg", argv[i])) { + if (++i >= argc) + exit(1); + background = argv[i]; + defined_bg = 1; + } + else if (!strcmp("-x", argv[i])) { + if (++i >= argc) + exit(1); + offset_x = atoi(argv[i]); + defined_x = 1; + } + else if (!strcmp("-y", argv[i])) { + if (++i >= argc) + exit(1); + offset_y = atoi(argv[i]); + defined_y = 1; + } + else if (!strcmp("-test", argv[i])) { + defined_test = 1; + } + else if (!strcmp("-debug", argv[i])) { + defined_debug = 1; + } + else { + exit(1); + } + } +} + +void +DrawImage(char *buf, int redraw) +{ + static ImlibData *id = NULL; + ImlibImage *im; + char *p = buf; + int n = 0, x = 0, y = 0, w = 0, h = 0, sx = 0, sy = 0, sw = 0, sh = 0; + + if (!p) + return; + for (; isdigit(*p); p++) + n = 10 * n + (*p - '0'); + if (*(p++) != ';') + return; + for (; isdigit(*p); p++) + x = 10 * x + (*p - '0'); + if (*(p++) != ';') + return; + for (; isdigit(*p); p++) + y = 10 * y + (*p - '0'); + if (*(p++) != ';') + return; + for (; isdigit(*p); p++) + w = 10 * w + (*p - '0'); + if (*(p++) != ';') + return; + for (; isdigit(*p); p++) + h = 10 * h + (*p - '0'); + if (*(p++) != ';') + return; + for (; isdigit(*p); p++) + sx = 10 * sx + (*p - '0'); + if (*(p++) != ';') + return; + for (; isdigit(*p); p++) + sy = 10 * sy + (*p - '0'); + if (*(p++) != ';') + return; + for (; isdigit(*p); p++) + sw = 10 * sw + (*p - '0'); + if (*(p++) != ';') + return; + for (; isdigit(*p); p++) + sh = 10 * sh + (*p - '0'); + if (*(p++) != ';') + return; + + n--; + if (n < 0 || n >= MAX_IMAGE) + return; + if (redraw) { + if (!imageGC || n >= maxImage || !imageBuf[n].pixmap) + return; + goto draw_image; + } + if (!id) { + id = Imlib_init(display); + if (!id) + return; + } + if (!imageGC) { + imageGC = XCreateGC(display, parent, 0, NULL); + if (!imageGC) + return; + } + if (n >= maxImage) { + int i = maxImage; + maxImage = i ? (i * 2) : 2; + if (maxImage > MAX_IMAGE) + maxImage = MAX_IMAGE; + else if (n >= maxImage) + maxImage = n + 1; + imageBuf = (Image *) realloc((void *)imageBuf, + sizeof(Image) * maxImage); + for (; i < maxImage; i++) + imageBuf[i].pixmap = NULL; + } + if (imageBuf[n].pixmap) { + XFreePixmap(display, imageBuf[n].pixmap); + imageBuf[n].pixmap = NULL; + } + + im = Imlib_load_image(id, p); + if (!im) + return; + if (!w) + w = im->rgb_width; + if (!h) + h = im->rgb_height; + imageBuf[n].pixmap = XCreatePixmap(display, parent, w, h, + DefaultDepth(display, 0)); + if (!imageBuf[n].pixmap) + return; + XSetForeground(display, imageGC, background_pixel); + XFillRectangle(display, imageBuf[n].pixmap, imageGC, 0, 0, w, h); + Imlib_paste_image(id, im, imageBuf[n].pixmap, 0, 0, w, h); + Imlib_kill_image(id, im); + imageBuf[n].width = w; + imageBuf[n].height = h; + draw_image: + XCopyArea(display, imageBuf[n].pixmap, window, imageGC, + sx, sy, (sw ? sw : imageBuf[n].width), + (sh ? sh : imageBuf[n].height), x + offset_x, y + offset_y); +} + +void +ClearImage(void) +{ + if (imageGC) { + XFreeGC(display, imageGC); + imageGC = NULL; + } + if (imageBuf) { + int i; + for (i = 0; i < maxImage; i++) { + if (imageBuf[i].pixmap) + XFreePixmap(display, imageBuf[i].pixmap); + } + free(imageBuf); + imageBuf = NULL; + } + maxImage = 0; +} |