#if 0
char *XSetIMValues(XIM, ...); /* Hack for XFree86 4.0 */
#endif
+#include <X11/Xatom.h>
#endif /* __MAKEDEPEND__ */
static term_data data[MAX_TERM_DATA];
+/* Use short names for the most commonly used elements of various structures. */
+#define DPY (Metadpy->dpy)
+#define WIN (Infowin->win)
+
+
+/* Describe a set of co-ordinates. */
+typedef struct co_ord co_ord;
+struct co_ord
+{
+ int x;
+ int y;
+};
+
+
+/*
+ * A special structure to store information about the text currently
+ * selected.
+ */
+typedef struct x11_selection_type x11_selection_type;
+struct x11_selection_type
+{
+ bool select; /* The selection is currently in use. */
+ bool drawn; /* The selection is currently displayed. */
+ term *t; /* The window where the selection is found. */
+ co_ord init; /* The starting co-ordinates. */
+ co_ord cur; /* The end co-ordinates (the current ones if still copying). */
+ co_ord old; /* The previous end co-ordinates. */
+ Time time; /* The time at which the selection was finalised. */
+};
+
+static x11_selection_type s_ptr[1];
+
/*
* Process a keypress event
}
+/*
+ * Find the square a particular pixel is part of.
+ */
+static void pixel_to_square(int * const x, int * const y,
+ const int ox, const int oy)
+{
+ (*x) = (ox - Infowin->ox) / Infofnt->wid;
+ (*y) = (oy - Infowin->oy) / Infofnt->hgt;
+}
+
+/*
+ * Find the pixel at the top-left corner of a square.
+ */
+static void square_to_pixel(int * const x, int * const y,
+ const int ox, const int oy)
+{
+ (*x) = ox * Infofnt->wid + Infowin->ox;
+ (*y) = oy * Infofnt->hgt + Infowin->oy;
+}
+
+/*
+ * Convert co-ordinates from starting corner/opposite corner to minimum/maximum.
+ */
+static void sort_co_ord(co_ord *min, co_ord *max,
+ const co_ord *b, const co_ord *a)
+{
+ min->x = MIN(a->x, b->x);
+ min->y = MIN(a->y, b->y);
+ max->x = MAX(a->x, b->x);
+ max->y = MAX(a->y, b->y);
+}
+
+/*
+ * Remove the selection by redrawing it.
+ */
+static void mark_selection_clear(int x1, int y1, int x2, int y2)
+{
+ Term_redraw_section(x1,y1,x2,y2);
+}
+
+/*
+ * Select an area by drawing a grey box around it.
+ * NB. These two functions can cause flicker as the selection is modified,
+ * as the game redraws the entire marked section.
+ */
+static void mark_selection_mark(int x1, int y1, int x2, int y2)
+{
+ square_to_pixel(&x1, &y1, x1, y1);
+ square_to_pixel(&x2, &y2, x2, y2);
+ XDrawRectangle(Metadpy->dpy, Infowin->win, clr[2]->gc, x1, y1,
+ x2-x1+Infofnt->wid - 1, y2-y1+Infofnt->hgt - 1);
+}
+
+/*
+ * Mark a selection by drawing boxes around it (for now).
+ */
+static void mark_selection(void)
+{
+ co_ord min, max;
+ term *old = Term;
+ bool draw = s_ptr->select;
+ bool clear = s_ptr->drawn;
+
+ /* Open the correct term if necessary. */
+ if (s_ptr->t != old) Term_activate(s_ptr->t);
+
+ if (clear)
+ {
+ sort_co_ord(&min, &max, &s_ptr->init, &s_ptr->old);
+ mark_selection_clear(min.x, min.y, max.x, max.y);
+ }
+ if (draw)
+ {
+ sort_co_ord(&min, &max, &s_ptr->init, &s_ptr->cur);
+ mark_selection_mark(min.x, min.y, max.x, max.y);
+ }
+
+ /* Finish on the current term. */
+ if (s_ptr->t != old) Term_activate(old);
+
+ s_ptr->old.x = s_ptr->cur.x;
+ s_ptr->old.y = s_ptr->cur.y;
+ s_ptr->drawn = s_ptr->select;
+}
+
+/*
+ * Forget a selection for one reason or another.
+ */
+static void copy_x11_release(void)
+{
+ /* Deselect the current selection. */
+ s_ptr->select = FALSE;
+
+ /* Remove its graphical represesntation. */
+ mark_selection();
+}
+
+/*
+ * Start to select some text on the screen.
+ */
+static void copy_x11_start(int x, int y)
+{
+ if (s_ptr->select) copy_x11_release();
+
+ /* Remember where the selection started. */
+ s_ptr->t = Term;
+ s_ptr->init.x = s_ptr->cur.x = s_ptr->old.x = x;
+ s_ptr->init.y = s_ptr->cur.y = s_ptr->old.y = y;
+}
+
+/*
+ * Respond to movement of the mouse when selecting text.
+ */
+static void copy_x11_cont(int x, int y, unsigned int buttons)
+{
+ /* Use the nearest square within bounds if the mouse is outside. */
+ x = MIN(MAX(x, 0), Term->wid-1);
+ y = MIN(MAX(y, 0), Term->hgt-1);
+
+ /* The left mouse button isn't pressed. */
+ if (~buttons & Button1Mask) return;
+
+ /* Not a selection in this window. */
+ if (s_ptr->t != Term) return;
+
+ /* Not enough movement. */
+ if (x == s_ptr->old.x && y == s_ptr->old.y && s_ptr->select) return;
+
+ /* Something is being selected. */
+ s_ptr->select = TRUE;
+
+ /* Track the selection. */
+ s_ptr->cur.x = x;
+ s_ptr->cur.y = y;
+
+ /* Hack - display it inefficiently. */
+ mark_selection();
+}
+
+/*
+ * Respond to release of the left mouse button by putting the selected text in
+ * the primary buffer.
+ */
+static void copy_x11_end(const Time time)
+{
+ /* No selection. */
+ if (!s_ptr->select) return;
+
+ /* Not a selection in this window. */
+ if (s_ptr->t != Term) return;
+
+ /* Remember when the selection was finalised. */
+ s_ptr->time = time;
+
+ /* Acquire the primary selection. */
+ XSetSelectionOwner(Metadpy->dpy, XA_PRIMARY, Infowin->win, time);
+ if (XGetSelectionOwner(Metadpy->dpy, XA_PRIMARY) != Infowin->win)
+ {
+ /* Failed to acquire the selection, so forget it. */
+ /* bell("Failed to acquire primary buffer."); */
+ s_ptr->select = FALSE;
+ mark_selection();
+ }
+}
+
+/*
+ * Send a message to request that the PRIMARY buffer be sent here.
+ */
+static void paste_x11_request(const Time time)
+{
+ /* Check the owner. */
+ if (XGetSelectionOwner(Metadpy->dpy, XA_PRIMARY) == None)
+ {
+ /* No selection. */
+ /* bell("No selection found."); */
+ return;
+ }
+
+ /* Request the event as a STRING. */
+ XConvertSelection(DPY, XA_PRIMARY, XA_STRING, XA_STRING, WIN, time);
+}
+
+/*
+ * Add a character to a string in preparation for sending it to another
+ * client as a STRING.
+ * This doesn't change anything, as clients tend not to have difficulty in
+ * receiving this format (although the standard specifies a restricted set).
+ * Strings do not have a colour.
+ */
+static int add_char_string(char *buf, byte a, char c)
+{
+ (void)a;
+
+ *buf = c;
+ return 1;
+}
+
+static bool paste_x11_send_text(XSelectionRequestEvent *rq, int (*add)(char *, byte, char))
+{
+ char buf[1024];
+ co_ord max, min;
+ int x,y,l;
+ byte a;
+ char c;
+
+ /* Too old, or incorrect call. */
+ if (rq->time < s_ptr->time || !add) return FALSE;
+
+ /* Work out which way around to paste. */
+ sort_co_ord(&min, &max, &s_ptr->init, &s_ptr->cur);
+
+ /* Paranoia. */
+ if (XGetSelectionOwner(DPY, XA_PRIMARY) != WIN)
+ {
+ /* bell("Someone stole my selection!"); */
+ return FALSE;
+ }
+
+ /* Delete the old value of the property. */
+ XDeleteProperty(DPY, rq->requestor, rq->property);
+
+ for (y = 0; y < Term->hgt; y++)
+ {
+ if (y < min.y) continue;
+ if (y > max.y) break;
+
+ for (x = l = 0; x < Term->wid; x++)
+ {
+ if (x < min.x) continue;
+ if (x > max.x) break;
+
+ /* Find the character. */
+ Term_what(x, y, &a, &c);
+
+ /* Add it. */
+ l += (*add)(buf+l, a, c);
+ }
+
+#if 0
+ /* Terminate all but the last line in an appropriate way. */
+ if (y != max.y) l += (*add)(buf+l, TERM_WHITE, '\n');
+#else
+ /* Terminate all line unless single line message. */
+ if (min.y != max.y) l += (*add)(buf+l, TERM_WHITE, '\n');
+#endif
+
+ /* Send the (non-empty) string. */
+ XChangeProperty(DPY, rq->requestor, rq->property, rq->target, 8,
+ PropModeAppend, (byte*)buf, l);
+ }
+ return TRUE;
+}
+
+static Atom xa_targets, xa_timestamp;
+
+/*
+ * Set the required variable atoms at start-up to avoid errors later.
+ */
+static void set_atoms(void)
+{
+ xa_targets = XInternAtom(DPY, "TARGETS", False);
+ xa_timestamp = XInternAtom(DPY, "TIMESTAMP", False);
+}
+
+/*
+ * Send some text requested by another X client.
+ */
+static void paste_x11_send(XSelectionRequestEvent *rq)
+{
+ XEvent event;
+ XSelectionEvent *ptr = &(event.xselection);
+
+ /* Set the event parameters. */
+ ptr->type = SelectionNotify;
+ ptr->property = rq->property;
+ ptr->display = rq->display;
+ ptr->requestor = rq->requestor;
+ ptr->selection = rq->selection;
+ ptr->target = rq->target;
+ ptr->time = rq->time;
+
+ /* Paste the appropriate information for each target type.
+ * Note that this currently rejects MULTIPLE targets.
+ */
+
+ if (rq->target == XA_STRING)
+ {
+ if (!paste_x11_send_text(rq, add_char_string))
+ ptr->property = None;
+ }
+ else if (rq->target == xa_targets)
+ {
+ Atom target_list[2];
+ target_list[0] = XA_STRING;
+ target_list[1] = xa_targets;
+ XChangeProperty(DPY, rq->requestor, rq->property, rq->target,
+ (8 * sizeof(target_list[0])), PropModeReplace,
+ (unsigned char *)target_list,
+ (sizeof(target_list) / sizeof(target_list[0])));
+ }
+ else if (rq->target == xa_timestamp)
+ {
+ XChangeProperty(DPY, rq->requestor, rq->property, rq->target,
+ (8 * sizeof(Time)), PropModeReplace,
+ (unsigned char *)s_ptr->time, 1);
+ }
+ else
+ {
+ ptr->property = None;
+ }
+
+ /* Send whatever event we're left with. */
+ XSendEvent(DPY, rq->requestor, FALSE, NoEventMask, &event);
+}
+
+/*
+ * Add the contents of the PRIMARY buffer to the input queue.
+ *
+ * Hack - This doesn't use the "time" of the event, and so accepts anything a
+ * client tries to send it.
+ */
+static void paste_x11_accept(const XSelectionEvent *ptr)
+{
+ unsigned long offset, left;
+
+ /* Failure. */
+ if (ptr->property == None)
+ {
+ /* bell("Paste failure (remote client could not send)."); */
+ return;
+ }
+
+ if (ptr->selection != XA_PRIMARY)
+ {
+ /* bell("Paste failure (remote client did not send primary selection)."); */
+ return;
+ }
+
+ if (ptr->target != XA_STRING)
+ {
+ /* bell("Paste failure (selection in unknown format)."); */
+ return;
+ }
+
+ for (offset = 0; ; offset += left)
+ {
+ errr err;
+
+ /* A pointer for the pasted information. */
+ unsigned char *data;
+
+ Atom type;
+ int fmt;
+ unsigned long nitems;
+
+ /* Set data to the string, and catch errors. */
+ if (XGetWindowProperty(Metadpy->dpy, Infowin->win, XA_STRING, offset,
+ 32767, TRUE, XA_STRING, &type, &fmt, &nitems, &left, &data)
+ != Success) break;
+
+ /* Paste the text. */
+ err = type_string((char*)data, nitems);
+
+ /* Free the data pasted. */
+ XFree(data);
+
+ /* No room. */
+ if (err == PARSE_ERROR_OUT_OF_MEMORY)
+ {
+ /* bell("Paste failure (too much text selected)."); */
+ break;
+ }
+ /* Paranoia? - strange errors. */
+ else if (err)
+ {
+ break;
+ }
+
+ /* Pasted everything. */
+ if (!left) return;
+ }
+
+ /* An error has occurred, so free the last bit of data before returning. */
+ XFree(data);
+}
+
+/*
+ * Handle various events conditional on presses of a mouse button.
+ */
+static void handle_button(Time time, int x, int y, int button,
+ bool press)
+{
+ /* The co-ordinates are only used in Angband format. */
+ pixel_to_square(&x, &y, x, y);
+
+ if (press && button == 1) copy_x11_start(x, y);
+ if (!press && button == 1) copy_x11_end(time);
+ if (!press && button == 2) paste_x11_request(time);
+}
/*
term_data *td = NULL;
infowin *iwin = NULL;
- int i, x, y;
+ int i;
#ifdef USE_XIM
redo_checkevent:
/* Do not wait unless requested */
if (!wait && !XPending(Metadpy->dpy)) return (1);
+ /*
+ * Hack - redraw the selection, if needed.
+ * This doesn't actually check that one of its squares was drawn to,
+ * only that this may have happened.
+ */
+ if (s_ptr->select && !s_ptr->drawn) mark_selection();
+
/* Load the Event */
XNextEvent(Metadpy->dpy, xev);
/* Switch on the Type */
switch (xev->type)
{
-
-#if 0
-
case ButtonPress:
case ButtonRelease:
{
- int z = 0;
+ bool press = (xev->type == ButtonPress);
+
+ /* Where is the mouse */
+ int x = xev->xbutton.x;
+ int y = xev->xbutton.y;
+
+ int z;
/* Which button is involved */
if (xev->xbutton.button == Button1) z = 1;
else if (xev->xbutton.button == Button3) z = 3;
else if (xev->xbutton.button == Button4) z = 4;
else if (xev->xbutton.button == Button5) z = 5;
-
- /* Where is the mouse */
- x = xev->xbutton.x;
- y = xev->xbutton.y;
+ else z = 0;
/* XXX Handle */
+ handle_button(xev->xbutton.time, x, y, z, press);
break;
}
case EnterNotify:
case LeaveNotify:
{
- /* Where is the mouse */
- x = xev->xcrossing.x;
- y = xev->xcrossing.y;
-
/* XXX Handle */
break;
case MotionNotify:
{
/* Where is the mouse */
- x = xev->xmotion.x;
- y = xev->xmotion.y;
+ int x = xev->xmotion.x;
+ int y = xev->xmotion.y;
+ unsigned int z = xev->xmotion.state;
+
+ /* Convert to co-ordinates Angband understands. */
+ pixel_to_square(&x, &y, x, y);
+
+ /* Highlight the current square, if appropriate. */
+ /* highlight_square(window, y, x); */
+
+ /* Alter the selection if appropriate. */
+ copy_x11_cont(x, y, z);
/* XXX Handle */
break;
}
+ case SelectionNotify:
+ {
+ paste_x11_accept(&(xev->xselection));
+ break;
+ }
+
+ case SelectionRequest:
+ {
+ paste_x11_send(&(xev->xselectionrequest));
+ break;
+ }
+
+ case SelectionClear:
+ {
+ s_ptr->select = FALSE;
+ mark_selection();
+ break;
+ }
+
case KeyRelease:
{
/* Nothing */
break;
}
-#endif
-
case KeyPress:
{
- /* Save the mouse location */
- x = xev->xkey.x;
- y = xev->xkey.y;
-
/* Hack -- use "old" term */
Term_activate(&old_td->t);
case TERM_XTRA_LEVEL: return (Term_xtra_x11_level(v));
/* Clear the screen */
- case TERM_XTRA_CLEAR: Infowin_wipe(); return (0);
+ case TERM_XTRA_CLEAR: Infowin_wipe(); s_ptr->drawn = FALSE; return (0);
/* Delay for some milliseconds */
case TERM_XTRA_DELAY: usleep(1000 * v); return (0);
/* Mega-Hack -- Erase some space */
Infofnt_text_non(x, y, "", n);
+ /* Redraw the selection if any, as it may have been obscured. (later) */
+ s_ptr->drawn = FALSE;
+
/* Success */
return (0);
}
/* Draw the text */
Infofnt_text_std(x, y, s, n);
+ /* Redraw the selection if any, as it may have been obscured. (later) */
+ s_ptr->drawn = FALSE;
+
/* Success */
return (0);
}
#endif /* USE_TRANSPARENCY */
}
+ /* Redraw the selection if any, as it may have been obscured. (later) */
+ s_ptr->drawn = FALSE;
+
/* Success */
return (0);
}
/* Ask for certain events */
#if defined(USE_XIM)
- Infowin_set_mask(ExposureMask | StructureNotifyMask | KeyPressMask | FocusChangeMask);
+ Infowin_set_mask(ExposureMask | StructureNotifyMask | KeyPressMask | PointerMotionMask | ButtonPressMask | ButtonReleaseMask | FocusChangeMask);
#else
- Infowin_set_mask(ExposureMask | StructureNotifyMask | KeyPressMask);
+ Infowin_set_mask(ExposureMask | StructureNotifyMask | KeyPressMask | PointerMotionMask | ButtonPressMask | ButtonReleaseMask);
#endif
/* Set the window name */
}
+ /* Prepare required atoms. */
+ set_atoms();
+
+
/* Initialize the windows */
for (i = 0; i < num_term; i++)
{
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