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/* $Id: x11_w3mimg.c,v 1.2 2002/07/18 06:23:51 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;
unsigned int 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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