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-rw-r--r--w3mimg/x11/x11_w3mimg.c330
1 files changed, 330 insertions, 0 deletions
diff --git a/w3mimg/x11/x11_w3mimg.c b/w3mimg/x11/x11_w3mimg.c
new file mode 100644
index 0000000..685f038
--- /dev/null
+++ b/w3mimg/x11/x11_w3mimg.c
@@ -0,0 +1,330 @@
+/* $Id: x11_w3mimg.c,v 1.1 2002/07/17 20:58:48 ukai Exp $ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include <Imlib.h>
+
+#include "w3mimg/w3mimg.h"
+
+#define OFFSET_X 2
+#define OFFSET_Y 2
+
+struct x11_info {
+ Display *display;
+ Window window, parent;
+ unsigned long background_pixel;
+ GC imageGC;
+ ImlibData *id;
+};
+
+static int
+x11_init(w3mimg_op *self)
+{
+ struct x11_info *xi;
+ if (self == NULL)
+ return 0;
+ xi = (struct x11_info *)self->priv;
+ if (xi == NULL)
+ return 0;
+ if (! xi->id) {
+ xi->id = Imlib_init(xi->display);
+ if (! xi->id)
+ return 0;
+ }
+ if (! xi->imageGC) {
+ xi->imageGC = XCreateGC(xi->display, xi->parent, 0, NULL);
+ if (! xi->imageGC)
+ return 0;
+ }
+ return 1;
+}
+
+static int
+x11_finish(w3mimg_op *self)
+{
+ struct x11_info *xi;
+ if (self == NULL)
+ return 0;
+ xi = (struct x11_info *)self->priv;
+ if (xi == NULL)
+ return 0;
+ if (xi->imageGC) {
+ XFreeGC(xi->display, xi->imageGC);
+ xi->imageGC = NULL;
+ }
+ return 1;
+}
+
+static int
+x11_active(w3mimg_op *self)
+{
+ struct x11_info *xi;
+ if (self == NULL)
+ return 0;
+ xi = (struct x11_info *)self->priv;
+ if (xi == NULL)
+ return 0;
+ if (! xi->imageGC)
+ return 0;
+ return 1;
+}
+
+static void
+x11_set_background(w3mimg_op *self, char *background)
+{
+ XColor screen_def, exact_def;
+ struct x11_info *xi;
+ if (self == NULL)
+ return;
+ xi = (struct x11_info *)self->priv;
+ if (xi == NULL)
+ return;
+
+ if (background &&
+ XAllocNamedColor(xi->display, DefaultColormap(xi->display, 0),
+ background, &screen_def, &exact_def))
+ xi->background_pixel = screen_def.pixel;
+ else {
+ Pixmap p;
+ GC gc;
+ XImage *i;
+
+ p = XCreatePixmap(xi->display, xi->window, 1, 1,
+ DefaultDepth(xi->display, 0));
+ gc = XCreateGC(xi->display, xi->window, 0, NULL);
+ if (!p || !gc)
+ exit(1); /* XXX */
+ XCopyArea(xi->display, xi->window, p, gc,
+ (self->offset_x >= 1) ? (self->offset_x - 1) : 0,
+ (self->offset_y >= 1) ? (self->offset_y - 1) : 0,
+ 1, 1, 0, 0);
+ i = XGetImage(xi->display, p, 0, 0, 1, 1, -1, ZPixmap);
+ if (!i)
+ exit(1);
+ xi->background_pixel = XGetPixel(i, 0, 0);
+ XDestroyImage(i);
+ XFreeGC(xi->display, gc);
+ XFreePixmap(xi->display, p);
+ }
+}
+
+static void
+x11_sync(w3mimg_op *self)
+{
+ struct x11_info *xi;
+ if (self == NULL)
+ return;
+ xi = (struct x11_info *)self->priv;
+ if (xi == NULL)
+ return;
+ XSync(xi->display, False);
+}
+
+static void
+x11_close(w3mimg_op *self)
+{
+ /* XCloseDisplay(xi->display); */
+}
+
+static int
+x11_load_image(w3mimg_op *self, W3MImage *img, char *fname, int w, int h)
+{
+ struct x11_info *xi;
+ ImlibImage *im;
+
+ if (self == NULL)
+ return 0;
+ xi = (struct x11_info *)self->priv;
+ if (xi == NULL)
+ return 0;
+
+ im = Imlib_load_image(xi->id, fname);
+ if (!im)
+ return 0;
+ if (w <= 0)
+ w = im->rgb_width;
+ if (h <= 0)
+ h = im->rgb_height;
+ img->pixmap = (void *)XCreatePixmap(xi->display, xi->parent, w, h,
+ DefaultDepth(xi->display, 0));
+ if (! img->pixmap)
+ return 0;
+ XSetForeground(xi->display, xi->imageGC, xi->background_pixel);
+ XFillRectangle(xi->display, (Pixmap)img->pixmap, xi->imageGC, 0, 0, w, h);
+ Imlib_paste_image(xi->id, im, (Pixmap)img->pixmap, 0, 0, w, h);
+ Imlib_kill_image(xi->id, im);
+ img->width = w;
+ img->height = h;
+ return 1;
+}
+
+static int
+x11_show_image(w3mimg_op *self, W3MImage *img, int sx, int sy, int sw, int sh,
+ int x, int y)
+{
+ struct x11_info *xi;
+ if (self == NULL)
+ return 0;
+ xi = (struct x11_info *)self->priv;
+ if (xi == NULL)
+ return 0;
+
+ XCopyArea(xi->display, (Pixmap)img->pixmap, xi->window, xi->imageGC,
+ sx, sy,
+ (sw ? sw : img->width),
+ (sh ? sh : img->height),
+ x + self->offset_x, y + self->offset_y);
+ return 1;
+}
+
+static void
+x11_free_image(w3mimg_op *self, W3MImage *img)
+{
+ struct x11_info *xi;
+ if (self == NULL)
+ return;
+ xi = (struct x11_info *)self->priv;
+ if (xi == NULL)
+ return;
+ if (img && img->pixmap) {
+ XFreePixmap(xi->display, (Pixmap)img->pixmap);
+ img->pixmap = NULL;
+ img->width = 0;
+ img->height = 0;
+ }
+}
+
+
+/* *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* */
+
+w3mimg_op *
+w3mimg_x11open()
+{
+ w3mimg_op *wop = NULL;
+ struct x11_info *xi = NULL;
+ char *id;
+ int revert, i, nchildren;
+ XWindowAttributes attr;
+ Window root, *children;
+
+ wop = (w3mimg_op *)malloc(sizeof(w3mimg_op));
+ if (wop == NULL)
+ return NULL;
+ memset(wop, 0, sizeof(w3mimg_op));
+
+ xi = (struct x11_info *)malloc(sizeof(struct x11_info));
+ if (xi == NULL)
+ goto error;
+ memset(xi, 0, sizeof(struct x11_info));
+
+ xi->display = XOpenDisplay(NULL);
+ if (xi->display == NULL) {
+ goto error;
+ }
+ if ((id = getenv("WINDOWID")) != NULL)
+ xi->window = (Window)atoi(id);
+ else
+ XGetInputFocus(xi->display, &xi->window, &revert);
+ if (! xi->window)
+ exit(1);
+
+ XGetWindowAttributes(xi->display, xi->window, &attr);
+ wop->width = attr.width;
+ wop->height = attr.height;
+
+ while (1) {
+ Window p_window;
+
+ XQueryTree(xi->display, xi->window, &root, &xi->parent,
+ &children, &nchildren);
+ p_window = xi->window;
+ for (i = 0; i < nchildren; i++) {
+ XGetWindowAttributes(xi->display, children[i], &attr);
+ if (attr.width > wop->width * 0.7 &&
+ attr.height > wop->height * 0.7) {
+ /* maybe text window */
+ wop->width = attr.width;
+ wop->height = attr.height;
+ xi->window = children[i];
+ }
+ }
+ if (p_window == xi->window)
+ break;
+ }
+ wop->offset_x = OFFSET_X;
+ for (i = 0; i < nchildren; i++) {
+ XGetWindowAttributes(xi->display, children[i], &attr);
+ if (attr.x <= 0 && attr.width < 30 &&
+ attr.height > wop->height * 0.7) {
+ /* scrollbar of xterm/kterm ? */
+ wop->offset_x += attr.x + attr.width + attr.border_width * 2;
+ break;
+ }
+ }
+ wop->offset_y = OFFSET_Y;
+
+ wop->priv = xi;
+
+ wop->init = x11_init;
+ wop->finish = x11_finish;
+ wop->active = x11_active;
+ wop->set_background = x11_set_background;
+ wop->sync = x11_sync;
+ wop->close = x11_close;
+
+ wop->load_image = x11_load_image;
+ wop->show_image = x11_show_image;
+ wop->free_image = x11_free_image;
+
+ return wop;
+error:
+ if (xi)
+ free(xi);
+ free(wop);
+ return NULL;
+}
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