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putty-source/unix/pterm.c
Simon Tatham b8625a2bf5 Trim wide text properly at the RH edge of the screen. 
[originally from svn r2055]
2002-10-15 09:30:16 +00:00

1432 lines
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/*
* pterm - a fusion of the PuTTY terminal emulator with a Unix pty
* back end, all running as a GTK application. Wish me luck.
*/
#include <string.h>
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#define PUTTY_DO_GLOBALS /* actually _define_ globals */
#include "putty.h"
#define CAT2(x,y) x ## y
#define CAT(x,y) CAT2(x,y)
#define ASSERT(x) enum {CAT(assertion_,__LINE__) = 1 / (x)}
#define NCOLOURS (lenof(((Config *)0)->colours))
struct gui_data {
GtkWidget *window, *area, *sbar;
GtkBox *hbox;
GtkAdjustment *sbar_adjust;
GdkPixmap *pixmap;
GdkFont *fonts[2]; /* normal and bold (for now!) */
GdkCursor *rawcursor, *textcursor, *blankcursor, *currcursor;
GdkColor cols[NCOLOURS];
GdkColormap *colmap;
wchar_t *pastein_data;
int pastein_data_len;
char *pasteout_data;
int pasteout_data_len;
int font_width, font_height;
int ignore_sbar;
int mouseptr_visible;
guint term_paste_idle_id;
GdkAtom compound_text_atom;
char wintitle[sizeof(((Config *)0)->wintitle)];
};
static struct gui_data the_inst;
static struct gui_data *inst = &the_inst; /* so we always write `inst->' */
static int send_raw_mouse;
void ldisc_update(int echo, int edit)
{
/*
* This is a stub in pterm. If I ever produce a Unix
* command-line ssh/telnet/rlogin client (i.e. a port of plink)
* then it will require some termios manoeuvring analogous to
* that in the Windows plink.c, but here it's meaningless.
*/
}
int askappend(char *filename)
{
/*
* Logging in an xterm-alike is liable to be something you only
* do at serious diagnostic need. Hence, I'm going to take the
* easy option for now and assume we always want to overwrite
* log files. I can always make it properly configurable later.
*/
return 2;
}
void logevent(char *string)
{
/*
* This is not a very helpful function: events are logged
* pretty much exclusively by the back end, and our pty back
* end is self-contained. So we need do nothing.
*/
}
/*
* Translate a raw mouse button designation (LEFT, MIDDLE, RIGHT)
* into a cooked one (SELECT, EXTEND, PASTE).
*
* In Unix, this is not configurable; the X button arrangement is
* rock-solid across all applications, everyone has a three-button
* mouse or a means of faking it, and there is no need to switch
* buttons around at all.
*/
Mouse_Button translate_button(Mouse_Button button)
{
if (button == MBT_LEFT)
return MBT_SELECT;
if (button == MBT_MIDDLE)
return MBT_PASTE;
if (button == MBT_RIGHT)
return MBT_EXTEND;
return 0; /* shouldn't happen */
}
/*
* Minimise or restore the window in response to a server-side
* request.
*/
void set_iconic(int iconic)
{
/* FIXME: currently ignored */
}
/*
* Move the window in response to a server-side request.
*/
void move_window(int x, int y)
{
/* FIXME: currently ignored */
}
/*
* Move the window to the top or bottom of the z-order in response
* to a server-side request.
*/
void set_zorder(int top)
{
/* FIXME: currently ignored */
}
/*
* Refresh the window in response to a server-side request.
*/
void refresh_window(void)
{
/* FIXME: currently ignored */
}
/*
* Maximise or restore the window in response to a server-side
* request.
*/
void set_zoomed(int zoomed)
{
/* FIXME: currently ignored */
}
/*
* Report whether the window is iconic, for terminal reports.
*/
int is_iconic(void)
{
return 0; /* FIXME */
}
/*
* Report the window's position, for terminal reports.
*/
void get_window_pos(int *x, int *y)
{
*x = 3; *y = 4; /* FIXME */
}
/*
* Report the window's pixel size, for terminal reports.
*/
void get_window_pixels(int *x, int *y)
{
*x = 1; *y = 2; /* FIXME */
}
/*
* Return the window or icon title.
*/
char *get_window_title(int icon)
{
return inst->wintitle;
}
gint delete_window(GtkWidget *widget, GdkEvent *event, gpointer data)
{
/*
* We could implement warn-on-close here if we really wanted
* to.
*/
return FALSE;
}
void show_mouseptr(int show)
{
if (!cfg.hide_mouseptr)
show = 1;
if (show)
gdk_window_set_cursor(inst->area->window, inst->currcursor);
else
gdk_window_set_cursor(inst->area->window, inst->blankcursor);
inst->mouseptr_visible = show;
}
gint configure_area(GtkWidget *widget, GdkEventConfigure *event, gpointer data)
{
struct gui_data *inst = (struct gui_data *)data;
int w, h, need_size = 0;
/*
* Set up the colour map.
*/
palette_reset();
w = (event->width - 2*cfg.window_border) / inst->font_width;
h = (event->height - 2*cfg.window_border) / inst->font_height;
if (w != cfg.width || h != cfg.height) {
if (inst->pixmap) {
gdk_pixmap_unref(inst->pixmap);
inst->pixmap = NULL;
}
cfg.width = w;
cfg.height = h;
need_size = 1;
}
if (!inst->pixmap) {
GdkGC *gc;
inst->pixmap = gdk_pixmap_new(widget->window,
(cfg.width * inst->font_width +
2*cfg.window_border),
(cfg.height * inst->font_height +
2*cfg.window_border), -1);
gc = gdk_gc_new(inst->area->window);
gdk_gc_set_foreground(gc, &inst->cols[18]); /* default background */
gdk_draw_rectangle(inst->pixmap, gc, 1, 0, 0,
cfg.width * inst->font_width + 2*cfg.window_border,
cfg.height * inst->font_height + 2*cfg.window_border);
gdk_gc_unref(gc);
}
if (need_size) {
term_size(h, w, cfg.savelines);
}
return TRUE;
}
gint expose_area(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{
/* struct gui_data *inst = (struct gui_data *)data; */
/*
* Pass the exposed rectangle to terminal.c, which will call us
* back to do the actual painting.
*/
if (inst->pixmap) {
gdk_draw_pixmap(widget->window,
widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
inst->pixmap,
event->area.x, event->area.y,
event->area.x, event->area.y,
event->area.width, event->area.height);
}
return TRUE;
}
#define KEY_PRESSED(k) \
(inst->keystate[(k) / 32] & (1 << ((k) % 32)))
gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
/* struct gui_data *inst = (struct gui_data *)data; */
char output[32];
int start, end;
if (event->type == GDK_KEY_PRESS) {
#ifdef KEY_DEBUGGING
{
int i;
printf("keypress: keyval = %04x, state = %08x; string =",
event->keyval, event->state);
for (i = 0; event->string[i]; i++)
printf(" %02x", (unsigned char) event->string[i]);
printf("\n");
}
#endif
/*
* NYI:
* - alt+numpad
* - Compose key (!!! requires Unicode faff before even trying)
*/
/*
* Shift-PgUp and Shift-PgDn don't even generate keystrokes
* at all.
*/
if (event->keyval == GDK_Page_Up && (event->state & GDK_SHIFT_MASK)) {
term_scroll(0, -cfg.height/2);
return TRUE;
}
if (event->keyval == GDK_Page_Down && (event->state & GDK_SHIFT_MASK)) {
term_scroll(0, +cfg.height/2);
return TRUE;
}
/*
* Neither does Shift-Ins.
*/
if (event->keyval == GDK_Insert && (event->state & GDK_SHIFT_MASK)) {
request_paste();
return TRUE;
}
/* ALT+things gives leading Escape. */
output[0] = '\033';
strncpy(output+1, event->string, 31);
output[31] = '\0';
end = strlen(output);
if (event->state & GDK_MOD1_MASK)
start = 0;
else
start = 1;
/* Control-` is the same as Control-\ (unless gtk has a better idea) */
if (!event->string[0] && event->keyval == '`' &&
(event->state & GDK_CONTROL_MASK)) {
output[1] = '\x1C';
end = 2;
}
/* Control-Break is the same as Control-C */
if (event->keyval == GDK_Break &&
(event->state & GDK_CONTROL_MASK)) {
output[1] = '\003';
end = 2;
}
/* Control-2, Control-Space and Control-@ are NUL */
if (!event->string[0] &&
(event->keyval == ' ' || event->keyval == '2' ||
event->keyval == '@') &&
(event->state & (GDK_SHIFT_MASK |
GDK_CONTROL_MASK)) == GDK_CONTROL_MASK) {
output[1] = '\0';
end = 2;
}
/* Control-Shift-Space is 160 (ISO8859 nonbreaking space) */
if (!event->string[0] && event->keyval == ' ' &&
(event->state & (GDK_SHIFT_MASK | GDK_CONTROL_MASK)) ==
(GDK_SHIFT_MASK | GDK_CONTROL_MASK)) {
output[1] = '\240';
end = 2;
}
/* We don't let GTK tell us what Backspace is! We know better. */
if (event->keyval == GDK_BackSpace &&
!(event->state & GDK_SHIFT_MASK)) {
output[1] = cfg.bksp_is_delete ? '\x7F' : '\x08';
end = 2;
}
/* Shift-Tab is ESC [ Z */
if (event->keyval == GDK_ISO_Left_Tab ||
(event->keyval == GDK_Tab && (event->state & GDK_SHIFT_MASK))) {
end = 1 + sprintf(output+1, "\033[Z");
}
/*
* NetHack keypad mode.
*/
if (cfg.nethack_keypad) {
char *keys = NULL;
switch (event->keyval) {
case GDK_KP_1: case GDK_KP_End: keys = "bB"; break;
case GDK_KP_2: case GDK_KP_Down: keys = "jJ"; break;
case GDK_KP_3: case GDK_KP_Page_Down: keys = "nN"; break;
case GDK_KP_4: case GDK_KP_Left: keys = "hH"; break;
case GDK_KP_5: case GDK_KP_Begin: keys = ".."; break;
case GDK_KP_6: case GDK_KP_Right: keys = "lL"; break;
case GDK_KP_7: case GDK_KP_Home: keys = "yY"; break;
case GDK_KP_8: case GDK_KP_Up: keys = "kK"; break;
case GDK_KP_9: case GDK_KP_Page_Up: keys = "uU"; break;
}
if (keys) {
end = 2;
if (event->state & GDK_SHIFT_MASK)
output[1] = keys[1];
else
output[1] = keys[0];
goto done;
}
}
/*
* Application keypad mode.
*/
if (app_keypad_keys && !cfg.no_applic_k) {
int xkey = 0;
switch (event->keyval) {
case GDK_Num_Lock: xkey = 'P'; break;
case GDK_KP_Divide: xkey = 'Q'; break;
case GDK_KP_Multiply: xkey = 'R'; break;
case GDK_KP_Subtract: xkey = 'S'; break;
/*
* Keypad + is tricky. It covers a space that would
* be taken up on the VT100 by _two_ keys; so we
* let Shift select between the two. Worse still,
* in xterm function key mode we change which two...
*/
case GDK_KP_Add:
if (cfg.funky_type == 2) {
if (event->state & GDK_SHIFT_MASK)
xkey = 'l';
else
xkey = 'k';
} else if (event->state & GDK_SHIFT_MASK)
xkey = 'm';
else
xkey = 'l';
break;
case GDK_KP_Enter: xkey = 'M'; break;
case GDK_KP_0: case GDK_KP_Insert: xkey = 'p'; break;
case GDK_KP_1: case GDK_KP_End: xkey = 'q'; break;
case GDK_KP_2: case GDK_KP_Down: xkey = 'r'; break;
case GDK_KP_3: case GDK_KP_Page_Down: xkey = 's'; break;
case GDK_KP_4: case GDK_KP_Left: xkey = 't'; break;
case GDK_KP_5: case GDK_KP_Begin: xkey = 'u'; break;
case GDK_KP_6: case GDK_KP_Right: xkey = 'v'; break;
case GDK_KP_7: case GDK_KP_Home: xkey = 'w'; break;
case GDK_KP_8: case GDK_KP_Up: xkey = 'x'; break;
case GDK_KP_9: case GDK_KP_Page_Up: xkey = 'y'; break;
case GDK_KP_Decimal: case GDK_KP_Delete: xkey = 'n'; break;
}
if (xkey) {
if (vt52_mode) {
if (xkey >= 'P' && xkey <= 'S')
end = 1 + sprintf(output+1, "\033%c", xkey);
else
end = 1 + sprintf(output+1, "\033?%c", xkey);
} else
end = 1 + sprintf(output+1, "\033O%c", xkey);
goto done;
}
}
/*
* Next, all the keys that do tilde codes. (ESC '[' nn '~',
* for integer decimal nn.)
*
* We also deal with the weird ones here. Linux VCs replace F1
* to F5 by ESC [ [ A to ESC [ [ E. rxvt doesn't do _that_, but
* does replace Home and End (1~ and 4~) by ESC [ H and ESC O w
* respectively.
*/
{
int code = 0;
switch (event->keyval) {
case GDK_F1:
code = (event->state & GDK_SHIFT_MASK ? 23 : 11);
break;
case GDK_F2:
code = (event->state & GDK_SHIFT_MASK ? 24 : 12);
break;
case GDK_F3:
code = (event->state & GDK_SHIFT_MASK ? 25 : 13);
break;
case GDK_F4:
code = (event->state & GDK_SHIFT_MASK ? 26 : 14);
break;
case GDK_F5:
code = (event->state & GDK_SHIFT_MASK ? 28 : 15);
break;
case GDK_F6:
code = (event->state & GDK_SHIFT_MASK ? 29 : 17);
break;
case GDK_F7:
code = (event->state & GDK_SHIFT_MASK ? 31 : 18);
break;
case GDK_F8:
code = (event->state & GDK_SHIFT_MASK ? 32 : 19);
break;
case GDK_F9:
code = (event->state & GDK_SHIFT_MASK ? 33 : 20);
break;
case GDK_F10:
code = (event->state & GDK_SHIFT_MASK ? 34 : 21);
break;
case GDK_F11:
code = 23;
break;
case GDK_F12:
code = 24;
break;
case GDK_F13:
code = 25;
break;
case GDK_F14:
code = 26;
break;
case GDK_F15:
code = 28;
break;
case GDK_F16:
code = 29;
break;
case GDK_F17:
code = 31;
break;
case GDK_F18:
code = 32;
break;
case GDK_F19:
code = 33;
break;
case GDK_F20:
code = 34;
break;
}
if (!(event->state & GDK_CONTROL_MASK)) switch (event->keyval) {
case GDK_Home: case GDK_KP_Home:
code = 1;
break;
case GDK_Insert: case GDK_KP_Insert:
code = 2;
break;
case GDK_Delete: case GDK_KP_Delete:
code = 3;
break;
case GDK_End: case GDK_KP_End:
code = 4;
break;
case GDK_Page_Up: case GDK_KP_Page_Up:
code = 5;
break;
case GDK_Page_Down: case GDK_KP_Page_Down:
code = 6;
break;
}
/* Reorder edit keys to physical order */
if (cfg.funky_type == 3 && code <= 6)
code = "\0\2\1\4\5\3\6"[code];
if (vt52_mode && code > 0 && code <= 6) {
end = 1 + sprintf(output+1, "\x1B%c", " HLMEIG"[code]);
goto done;
}
if (cfg.funky_type == 5 && /* SCO function keys */
code >= 11 && code <= 34) {
char codes[] = "MNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz@[\\]^_`{";
int index = 0;
switch (event->keyval) {
case GDK_F1: index = 0; break;
case GDK_F2: index = 1; break;
case GDK_F3: index = 2; break;
case GDK_F4: index = 3; break;
case GDK_F5: index = 4; break;
case GDK_F6: index = 5; break;
case GDK_F7: index = 6; break;
case GDK_F8: index = 7; break;
case GDK_F9: index = 8; break;
case GDK_F10: index = 9; break;
case GDK_F11: index = 10; break;
case GDK_F12: index = 11; break;
}
if (event->state & GDK_SHIFT_MASK) index += 12;
if (event->state & GDK_CONTROL_MASK) index += 24;
end = 1 + sprintf(output+1, "\x1B[%c", codes[index]);
goto done;
}
if (cfg.funky_type == 5 && /* SCO small keypad */
code >= 1 && code <= 6) {
char codes[] = "HL.FIG";
if (code == 3) {
output[1] = '\x7F';
end = 2;
} else {
end = 1 + sprintf(output+1, "\x1B[%c", codes[code-1]);
}
goto done;
}
if ((vt52_mode || cfg.funky_type == 4) && code >= 11 && code <= 24) {
int offt = 0;
if (code > 15)
offt++;
if (code > 21)
offt++;
if (vt52_mode)
end = 1 + sprintf(output+1,
"\x1B%c", code + 'P' - 11 - offt);
else
end = 1 + sprintf(output+1,
"\x1BO%c", code + 'P' - 11 - offt);
goto done;
}
if (cfg.funky_type == 1 && code >= 11 && code <= 15) {
end = 1 + sprintf(output+1, "\x1B[[%c", code + 'A' - 11);
goto done;
}
if (cfg.funky_type == 2 && code >= 11 && code <= 14) {
if (vt52_mode)
end = 1 + sprintf(output+1, "\x1B%c", code + 'P' - 11);
else
end = 1 + sprintf(output+1, "\x1BO%c", code + 'P' - 11);
goto done;
}
if (cfg.rxvt_homeend && (code == 1 || code == 4)) {
end = 1 + sprintf(output+1, code == 1 ? "\x1B[H" : "\x1BOw");
goto done;
}
if (code) {
end = 1 + sprintf(output+1, "\x1B[%d~", code);
goto done;
}
}
/*
* Cursor keys. (This includes the numberpad cursor keys,
* if we haven't already done them due to app keypad mode.)
*
* Here we also process un-numlocked un-appkeypadded KP5,
* which sends ESC [ G.
*/
{
int xkey = 0;
switch (event->keyval) {
case GDK_Up: case GDK_KP_Up: xkey = 'A'; break;
case GDK_Down: case GDK_KP_Down: xkey = 'B'; break;
case GDK_Right: case GDK_KP_Right: xkey = 'C'; break;
case GDK_Left: case GDK_KP_Left: xkey = 'D'; break;
case GDK_Begin: case GDK_KP_Begin: xkey = 'G'; break;
}
if (xkey) {
/*
* The arrow keys normally do ESC [ A and so on. In
* app cursor keys mode they do ESC O A instead.
* Ctrl toggles the two modes.
*/
if (vt52_mode) {
end = 1 + sprintf(output+1, "\033%c", xkey);
} else if (!app_cursor_keys ^
!(event->state & GDK_CONTROL_MASK)) {
end = 1 + sprintf(output+1, "\033O%c", xkey);
} else {
end = 1 + sprintf(output+1, "\033[%c", xkey);
}
goto done;
}
}
done:
#ifdef KEY_DEBUGGING
{
int i;
printf("generating sequence:");
for (i = start; i < end; i++)
printf(" %02x", (unsigned char) output[i]);
printf("\n");
}
#endif
if (end-start > 0) {
ldisc_send(output+start, end-start, 1);
show_mouseptr(0);
term_out();
}
}
return TRUE;
}
gint button_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
struct gui_data *inst = (struct gui_data *)data;
int shift, ctrl, alt, x, y, button, act;
show_mouseptr(1);
shift = event->state & GDK_SHIFT_MASK;
ctrl = event->state & GDK_CONTROL_MASK;
alt = event->state & GDK_MOD1_MASK;
if (event->button == 1)
button = MBT_LEFT;
else if (event->button == 2)
button = MBT_MIDDLE;
else if (event->button == 3)
button = MBT_RIGHT;
else
return FALSE; /* don't even know what button! */
switch (event->type) {
case GDK_BUTTON_PRESS: act = MA_CLICK; break;
case GDK_BUTTON_RELEASE: act = MA_RELEASE; break;
case GDK_2BUTTON_PRESS: act = MA_2CLK; break;
case GDK_3BUTTON_PRESS: act = MA_3CLK; break;
default: return FALSE; /* don't know this event type */
}
if (send_raw_mouse && !(cfg.mouse_override && shift) &&
act != MA_CLICK && act != MA_RELEASE)
return TRUE; /* we ignore these in raw mouse mode */
x = (event->x - cfg.window_border) / inst->font_width;
y = (event->y - cfg.window_border) / inst->font_height;
term_mouse(button, act, x, y, shift, ctrl, alt);
return TRUE;
}
gint motion_event(GtkWidget *widget, GdkEventMotion *event, gpointer data)
{
struct gui_data *inst = (struct gui_data *)data;
int shift, ctrl, alt, x, y, button;
show_mouseptr(1);
shift = event->state & GDK_SHIFT_MASK;
ctrl = event->state & GDK_CONTROL_MASK;
alt = event->state & GDK_MOD1_MASK;
if (event->state & GDK_BUTTON1_MASK)
button = MBT_LEFT;
else if (event->state & GDK_BUTTON2_MASK)
button = MBT_MIDDLE;
else if (event->state & GDK_BUTTON3_MASK)
button = MBT_RIGHT;
else
return FALSE; /* don't even know what button! */
x = (event->x - cfg.window_border) / inst->font_width;
y = (event->y - cfg.window_border) / inst->font_height;
term_mouse(button, MA_DRAG, x, y, shift, ctrl, alt);
return TRUE;
}
gint timer_func(gpointer data)
{
/* struct gui_data *inst = (struct gui_data *)data; */
extern int pty_child_is_dead(); /* declared in pty.c */
if (pty_child_is_dead()) {
/*
* The primary child process died. We could keep the
* terminal open for remaining subprocesses to output to,
* but conventional wisdom seems to feel that that's the
* Wrong Thing for an xterm-alike, so we bail out now. This
* would be easy enough to change or make configurable if
* necessary.
*/
exit(0);
}
term_update();
return TRUE;
}
void pty_input_func(gpointer data, gint sourcefd, GdkInputCondition condition)
{
/* struct gui_data *inst = (struct gui_data *)data; */
char buf[4096];
int ret;
ret = read(sourcefd, buf, sizeof(buf));
/*
* Clean termination condition is that either ret == 0, or ret
* < 0 and errno == EIO. Not sure why the latter, but it seems
* to happen. Boo.
*/
if (ret == 0 || (ret < 0 && errno == EIO)) {
exit(0);
}
if (ret < 0) {
perror("read pty master");
exit(1);
}
if (ret > 0)
from_backend(0, buf, ret);
term_out();
}
void destroy(GtkWidget *widget, gpointer data)
{
gtk_main_quit();
}
gint focus_event(GtkWidget *widget, GdkEventFocus *event, gpointer data)
{
has_focus = event->in;
term_out();
term_update();
show_mouseptr(1);
return FALSE;
}
/*
* set or clear the "raw mouse message" mode
*/
void set_raw_mouse_mode(int activate)
{
activate = activate && !cfg.no_mouse_rep;
send_raw_mouse = activate;
if (send_raw_mouse)
inst->currcursor = inst->rawcursor;
else
inst->currcursor = inst->textcursor;
show_mouseptr(inst->mouseptr_visible);
}
void request_resize(int w, int h)
{
/* FIXME: currently ignored */
}
void real_palette_set(int n, int r, int g, int b)
{
gboolean success[1];
inst->cols[n].red = r * 0x0101;
inst->cols[n].green = g * 0x0101;
inst->cols[n].blue = b * 0x0101;
gdk_colormap_alloc_colors(inst->colmap, inst->cols + n, 1,
FALSE, FALSE, success);
if (!success[0])
g_error("pterm: couldn't allocate colour %d (#%02x%02x%02x)\n",
n, r, g, b);
}
void palette_set(int n, int r, int g, int b)
{
static const int first[21] = {
0, 2, 4, 6, 8, 10, 12, 14,
1, 3, 5, 7, 9, 11, 13, 15,
16, 17, 18, 20, 22
};
real_palette_set(first[n], r, g, b);
if (first[n] >= 18)
real_palette_set(first[n] + 1, r, g, b);
}
void palette_reset(void)
{
/* This maps colour indices in cfg to those used in inst->cols. */
static const int ww[] = {
6, 7, 8, 9, 10, 11, 12, 13,
14, 15, 16, 17, 18, 19, 20, 21,
0, 1, 2, 3, 4, 5
};
gboolean success[NCOLOURS];
int i;
assert(lenof(ww) == NCOLOURS);
if (!inst->colmap) {
inst->colmap = gdk_colormap_get_system();
} else {
gdk_colormap_free_colors(inst->colmap, inst->cols, NCOLOURS);
}
for (i = 0; i < NCOLOURS; i++) {
inst->cols[i].red = cfg.colours[ww[i]][0] * 0x0101;
inst->cols[i].green = cfg.colours[ww[i]][1] * 0x0101;
inst->cols[i].blue = cfg.colours[ww[i]][2] * 0x0101;
}
gdk_colormap_alloc_colors(inst->colmap, inst->cols, NCOLOURS,
FALSE, FALSE, success);
for (i = 0; i < NCOLOURS; i++) {
if (!success[i])
g_error("pterm: couldn't allocate colour %d (#%02x%02x%02x)\n",
i, cfg.colours[i][0], cfg.colours[i][1], cfg.colours[i][2]);
}
}
void write_clip(wchar_t * data, int len, int must_deselect)
{
if (inst->pasteout_data)
sfree(inst->pasteout_data);
inst->pasteout_data = smalloc(len);
inst->pasteout_data_len = len;
wc_to_mb(0, 0, data, len, inst->pasteout_data, inst->pasteout_data_len,
NULL, NULL);
if (gtk_selection_owner_set(inst->area, GDK_SELECTION_PRIMARY,
GDK_CURRENT_TIME)) {
gtk_selection_add_target(inst->area, GDK_SELECTION_PRIMARY,
GDK_SELECTION_TYPE_STRING, 1);
gtk_selection_add_target(inst->area, GDK_SELECTION_PRIMARY,
inst->compound_text_atom, 1);
}
}
void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
guint info, guint time_stamp, gpointer data)
{
gtk_selection_data_set(seldata, GDK_SELECTION_TYPE_STRING, 8,
inst->pasteout_data, inst->pasteout_data_len);
}
gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
gpointer data)
{
term_deselect();
if (inst->pasteout_data)
sfree(inst->pasteout_data);
inst->pasteout_data = NULL;
inst->pasteout_data_len = 0;
return TRUE;
}
void request_paste(void)
{
/*
* In Unix, pasting is asynchronous: all we can do at the
* moment is to call gtk_selection_convert(), and when the data
* comes back _then_ we can call term_do_paste().
*/
gtk_selection_convert(inst->area, GDK_SELECTION_PRIMARY,
GDK_SELECTION_TYPE_STRING, GDK_CURRENT_TIME);
}
gint idle_paste_func(gpointer data); /* forward ref */
void selection_received(GtkWidget *widget, GtkSelectionData *seldata,
gpointer data)
{
if (seldata->length <= 0 ||
seldata->type != GDK_SELECTION_TYPE_STRING)
return; /* Nothing happens. */
if (inst->pastein_data)
sfree(inst->pastein_data);
inst->pastein_data = smalloc(seldata->length * sizeof(wchar_t));
inst->pastein_data_len = seldata->length;
mb_to_wc(0, 0, seldata->data, seldata->length,
inst->pastein_data, inst->pastein_data_len);
term_do_paste();
if (term_paste_pending())
inst->term_paste_idle_id = gtk_idle_add(idle_paste_func, inst);
}
gint idle_paste_func(gpointer data)
{
struct gui_data *inst = (struct gui_data *)data;
if (term_paste_pending())
term_paste();
else
gtk_idle_remove(inst->term_paste_idle_id);
return TRUE;
}
void get_clip(wchar_t ** p, int *len)
{
if (p) {
*p = inst->pastein_data;
*len = inst->pastein_data_len;
}
}
void set_title(char *title)
{
strncpy(inst->wintitle, title, lenof(inst->wintitle));
inst->wintitle[lenof(inst->wintitle)-1] = '\0';
gtk_window_set_title(GTK_WINDOW(inst->window), inst->wintitle);
}
void set_icon(char *title)
{
/* FIXME: currently ignored */
}
void set_sbar(int total, int start, int page)
{
inst->sbar_adjust->lower = 0;
inst->sbar_adjust->upper = total;
inst->sbar_adjust->value = start;
inst->sbar_adjust->page_size = page;
inst->sbar_adjust->step_increment = 1;
inst->sbar_adjust->page_increment = page/2;
inst->ignore_sbar = TRUE;
gtk_adjustment_changed(inst->sbar_adjust);
inst->ignore_sbar = FALSE;
}
void scrollbar_moved(GtkAdjustment *adj, gpointer data)
{
if (!inst->ignore_sbar)
term_scroll(1, (int)adj->value);
}
void sys_cursor(int x, int y)
{
/*
* This is meaningless under X.
*/
}
void beep(int mode)
{
gdk_beep();
}
int CharWidth(Context ctx, int uc)
{
/*
* Under X, any fixed-width font really _is_ fixed-width.
* Double-width characters will be dealt with using a separate
* font. For the moment we can simply return 1.
*/
return 1;
}
Context get_ctx(void)
{
GdkGC *gc;
if (!inst->area->window)
return NULL;
gc = gdk_gc_new(inst->area->window);
return gc;
}
void free_ctx(Context ctx)
{
GdkGC *gc = (GdkGC *)ctx;
gdk_gc_unref(gc);
}
/*
* Draw a line of text in the window, at given character
* coordinates, in given attributes.
*
* We are allowed to fiddle with the contents of `text'.
*/
void do_text(Context ctx, int x, int y, char *text, int len,
unsigned long attr, int lattr)
{
int nfg, nbg, t;
GdkGC *gc = (GdkGC *)ctx;
/*
* NYI:
* - Unicode, code pages, and ATTR_WIDE for CJK support.
* - cursor shapes other than block
* - shadow bolding
*/
nfg = 2 * ((attr & ATTR_FGMASK) >> ATTR_FGSHIFT);
nbg = 2 * ((attr & ATTR_BGMASK) >> ATTR_BGSHIFT);
if (attr & ATTR_REVERSE) {
t = nfg;
nfg = nbg;
nbg = t;
}
if (cfg.bold_colour && (attr & ATTR_BOLD))
nfg++;
if (cfg.bold_colour && (attr & ATTR_BLINK))
nbg++;
if (attr & TATTR_ACTCURS) {
nfg = NCOLOURS-2;
nbg = NCOLOURS-1;
}
if (lattr != LATTR_NORM) {
x *= 2;
if (x >= cols)
return;
if (x + len*2 > cols)
len = (cols-x)/2; /* trim to LH half */
}
gdk_gc_set_foreground(gc, &inst->cols[nbg]);
gdk_draw_rectangle(inst->pixmap, gc, 1,
x*inst->font_width+cfg.window_border,
y*inst->font_height+cfg.window_border,
len*inst->font_width, inst->font_height);
gdk_gc_set_foreground(gc, &inst->cols[nfg]);
gdk_draw_text(inst->pixmap, inst->fonts[0], gc,
x*inst->font_width+cfg.window_border,
y*inst->font_height+cfg.window_border+inst->fonts[0]->ascent,
text, len);
if (attr & ATTR_UNDER) {
int uheight = inst->fonts[0]->ascent + 1;
if (uheight >= inst->font_height)
uheight = inst->font_height - 1;
gdk_draw_line(inst->pixmap, gc, x*inst->font_width+cfg.window_border,
y*inst->font_height + uheight + cfg.window_border,
(x+len)*inst->font_width-1+cfg.window_border,
y*inst->font_height + uheight + cfg.window_border);
}
if (lattr != LATTR_NORM) {
/*
* I can't find any plausible StretchBlt equivalent in the
* X server, so I'm going to do this the slow and painful
* way. This will involve repeated calls to
* gdk_draw_pixmap() to stretch the text horizontally. It's
* O(N^2) in time and O(N) in network bandwidth, but you
* try thinking of a better way. :-(
*/
int i;
for (i = 0; i < len * inst->font_width; i++) {
gdk_draw_pixmap(inst->pixmap, gc, inst->pixmap,
x*inst->font_width+cfg.window_border + 2*i,
y*inst->font_height+cfg.window_border,
x*inst->font_width+cfg.window_border + 2*i+1,
y*inst->font_height+cfg.window_border,
len * inst->font_width - i, inst->font_height);
}
len *= 2;
if (lattr != LATTR_WIDE) {
int dt, db;
/* Now stretch vertically, in the same way. */
if (lattr == LATTR_BOT)
dt = 0, db = 1;
else
dt = 1, db = 0;
for (i = 0; i < inst->font_height; i+=2) {
gdk_draw_pixmap(inst->pixmap, gc, inst->pixmap,
x*inst->font_width+cfg.window_border,
y*inst->font_height+cfg.window_border+dt*i+db,
x*inst->font_width+cfg.window_border,
y*inst->font_height+cfg.window_border+dt*(i+1),
len * inst->font_width, inst->font_height-i-1);
}
}
len *= 2;
}
gdk_draw_pixmap(inst->area->window, gc, inst->pixmap,
x*inst->font_width+cfg.window_border,
y*inst->font_height+cfg.window_border,
x*inst->font_width+cfg.window_border,
y*inst->font_height+cfg.window_border,
len*inst->font_width, inst->font_height);
}
void do_cursor(Context ctx, int x, int y, char *text, int len,
unsigned long attr, int lattr)
{
int passive;
GdkGC *gc = (GdkGC *)ctx;
/*
* NYI: cursor shapes other than block
*/
if (attr & TATTR_PASCURS) {
attr &= ~TATTR_PASCURS;
passive = 1;
} else
passive = 0;
do_text(ctx, x, y, text, len, attr, lattr);
if (passive) {
gdk_gc_set_foreground(gc, &inst->cols[NCOLOURS-1]);
gdk_draw_rectangle(inst->pixmap, gc, 0,
x*inst->font_width+cfg.window_border,
y*inst->font_height+cfg.window_border,
len*inst->font_width-1, inst->font_height-1);
gdk_draw_pixmap(inst->area->window, gc, inst->pixmap,
x*inst->font_width+cfg.window_border,
y*inst->font_height+cfg.window_border,
x*inst->font_width+cfg.window_border,
y*inst->font_height+cfg.window_border,
len*inst->font_width, inst->font_height);
}
}
GdkCursor *make_mouse_ptr(int cursor_val)
{
/*
* Truly hideous hack: GTK doesn't allow us to set the mouse
* cursor foreground and background colours unless we've _also_
* created our own cursor from bitmaps. Therefore, I need to
* load the `cursor' font and draw glyphs from it on to
* pixmaps, in order to construct my cursors with the fg and bg
* I want. This is a gross hack, but it's more self-contained
* than linking in Xlib to find the X window handle to
* inst->area and calling XRecolorCursor, and it's more
* futureproof than hard-coding the shapes as bitmap arrays.
*/
static GdkFont *cursor_font = NULL;
GdkPixmap *source, *mask;
GdkGC *gc;
GdkColor cfg = { 0, 65535, 65535, 65535 };
GdkColor cbg = { 0, 0, 0, 0 };
GdkColor dfg = { 1, 65535, 65535, 65535 };
GdkColor dbg = { 0, 0, 0, 0 };
GdkCursor *ret;
gchar text[2];
gint lb, rb, wid, asc, desc, w, h, x, y;
if (cursor_val == -2) {
gdk_font_unref(cursor_font);
return NULL;
}
if (cursor_val >= 0 && !cursor_font)
cursor_font = gdk_font_load("cursor");
/*
* Get the text extent of the cursor in question. We use the
* mask character for this, because it's typically slightly
* bigger than the main character.
*/
if (cursor_val >= 0) {
text[1] = '\0';
text[0] = (char)cursor_val + 1;
gdk_string_extents(cursor_font, text, &lb, &rb, &wid, &asc, &desc);
w = rb-lb; h = asc+desc; x = -lb; y = asc;
} else {
w = h = 1;
x = y = 0;
}
source = gdk_pixmap_new(NULL, w, h, 1);
mask = gdk_pixmap_new(NULL, w, h, 1);
/*
* Draw the mask character on the mask pixmap.
*/
gc = gdk_gc_new(mask);
gdk_gc_set_foreground(gc, &dbg);
gdk_draw_rectangle(mask, gc, 1, 0, 0, w, h);
if (cursor_val >= 0) {
text[1] = '\0';
text[0] = (char)cursor_val + 1;
gdk_gc_set_foreground(gc, &dfg);
gdk_draw_text(mask, cursor_font, gc, x, y, text, 1);
}
gdk_gc_unref(gc);
/*
* Draw the main character on the source pixmap.
*/
gc = gdk_gc_new(source);
gdk_gc_set_foreground(gc, &dbg);
gdk_draw_rectangle(source, gc, 1, 0, 0, w, h);
if (cursor_val >= 0) {
text[1] = '\0';
text[0] = (char)cursor_val;
gdk_gc_set_foreground(gc, &dfg);
gdk_draw_text(source, cursor_font, gc, x, y, text, 1);
}
gdk_gc_unref(gc);
/*
* Create the cursor.
*/
ret = gdk_cursor_new_from_pixmap(source, mask, &cfg, &cbg, x, y);
/*
* Clean up.
*/
gdk_pixmap_unref(source);
gdk_pixmap_unref(mask);
return ret;
}
void modalfatalbox(char *p, ...)
{
va_list ap;
fprintf(stderr, "FATAL ERROR: ");
va_start(ap, p);
vfprintf(stderr, p, ap);
va_end(ap);
fputc('\n', stderr);
exit(1);
}
int main(int argc, char **argv)
{
extern int pty_master_fd; /* declared in pty.c */
extern char **pty_argv; /* declared in pty.c */
int err = 0;
gtk_init(&argc, &argv);
do_defaults(NULL, &cfg);
while (--argc > 0) {
char *p = *++argv;
if (!strcmp(p, "-fn")) {
if (--argc > 0) {
strncpy(cfg.font, *++argv, sizeof(cfg.font));
cfg.font[sizeof(cfg.font)-1] = '\0';
} else
err = 1, fprintf(stderr, "pterm: -fn expects an argument\n");
}
if (!strcmp(p, "-e")) {
if (--argc > 0) {
int i;
pty_argv = smalloc((argc+1) * sizeof(char *));
++argv;
for (i = 0; i < argc; i++)
pty_argv[i] = argv[i];
pty_argv[argc] = NULL;
break; /* finished command-line processing */
} else
err = 1, fprintf(stderr, "pterm: -e expects an argument\n");
}
if (!strcmp(p, "-T")) {
if (--argc > 0) {
strncpy(cfg.wintitle, *++argv, sizeof(cfg.wintitle));
cfg.wintitle[sizeof(cfg.wintitle)-1] = '\0';
} else
err = 1, fprintf(stderr, "pterm: -T expects an argument\n");
}
if (!strcmp(p, "-log")) {
if (--argc > 0) {
strncpy(cfg.logfilename, *++argv, sizeof(cfg.logfilename));
cfg.logfilename[sizeof(cfg.logfilename)-1] = '\0';
cfg.logtype = LGTYP_DEBUG;
} else
err = 1, fprintf(stderr, "pterm: -log expects an argument\n");
}
if (!strcmp(p, "-hide")) {
cfg.hide_mouseptr = 1;
}
if (!strcmp(p, "-nethack")) {
cfg.nethack_keypad = 1;
}
}
inst->fonts[0] = gdk_font_load(cfg.font);
inst->fonts[1] = NULL; /* FIXME: what about bold font? */
inst->font_width = gdk_char_width(inst->fonts[0], ' ');
inst->font_height = inst->fonts[0]->ascent + inst->fonts[0]->descent;
inst->compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
init_ucs();
back = &pty_backend;
back->init(NULL, 0, NULL, 0);
inst->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
if (cfg.wintitle[0])
set_title(cfg.wintitle);
else
set_title("pterm");
inst->area = gtk_drawing_area_new();
gtk_drawing_area_size(GTK_DRAWING_AREA(inst->area),
inst->font_width * cfg.width + 2*cfg.window_border,
inst->font_height * cfg.height + 2*cfg.window_border);
inst->sbar_adjust = GTK_ADJUSTMENT(gtk_adjustment_new(0, 0, 0, 0, 0, 0));
inst->sbar = gtk_vscrollbar_new(inst->sbar_adjust);
inst->hbox = GTK_BOX(gtk_hbox_new(FALSE, 0));
gtk_box_pack_start(inst->hbox, inst->area, TRUE, TRUE, 0);
gtk_box_pack_end(inst->hbox, inst->sbar, FALSE, FALSE, 0);
gtk_container_add(GTK_CONTAINER(inst->window), GTK_WIDGET(inst->hbox));
{
GdkGeometry geom;
geom.min_width = inst->font_width + 2*cfg.window_border;
geom.min_height = inst->font_height + 2*cfg.window_border;
geom.max_width = geom.max_height = -1;
geom.base_width = 2*cfg.window_border;
geom.base_height = 2*cfg.window_border;
geom.width_inc = inst->font_width;
geom.height_inc = inst->font_height;
geom.min_aspect = geom.max_aspect = 0;
gtk_window_set_geometry_hints(GTK_WINDOW(inst->window), inst->area, &geom,
GDK_HINT_MIN_SIZE | GDK_HINT_BASE_SIZE |
GDK_HINT_RESIZE_INC);
}
gtk_signal_connect(GTK_OBJECT(inst->window), "destroy",
GTK_SIGNAL_FUNC(destroy), inst);
gtk_signal_connect(GTK_OBJECT(inst->window), "delete_event",
GTK_SIGNAL_FUNC(delete_window), inst);
gtk_signal_connect(GTK_OBJECT(inst->window), "key_press_event",
GTK_SIGNAL_FUNC(key_event), inst);
gtk_signal_connect(GTK_OBJECT(inst->window), "focus_in_event",
GTK_SIGNAL_FUNC(focus_event), inst);
gtk_signal_connect(GTK_OBJECT(inst->window), "focus_out_event",
GTK_SIGNAL_FUNC(focus_event), inst);
gtk_signal_connect(GTK_OBJECT(inst->area), "configure_event",
GTK_SIGNAL_FUNC(configure_area), inst);
gtk_signal_connect(GTK_OBJECT(inst->area), "expose_event",
GTK_SIGNAL_FUNC(expose_area), inst);
gtk_signal_connect(GTK_OBJECT(inst->area), "button_press_event",
GTK_SIGNAL_FUNC(button_event), inst);
gtk_signal_connect(GTK_OBJECT(inst->area), "button_release_event",
GTK_SIGNAL_FUNC(button_event), inst);
gtk_signal_connect(GTK_OBJECT(inst->area), "motion_notify_event",
GTK_SIGNAL_FUNC(motion_event), inst);
gtk_signal_connect(GTK_OBJECT(inst->area), "selection_received",
GTK_SIGNAL_FUNC(selection_received), inst);
gtk_signal_connect(GTK_OBJECT(inst->area), "selection_get",
GTK_SIGNAL_FUNC(selection_get), inst);
gtk_signal_connect(GTK_OBJECT(inst->area), "selection_clear_event",
GTK_SIGNAL_FUNC(selection_clear), inst);
gtk_signal_connect(GTK_OBJECT(inst->sbar_adjust), "value_changed",
GTK_SIGNAL_FUNC(scrollbar_moved), inst);
gtk_timeout_add(20, timer_func, inst);
gdk_input_add(pty_master_fd, GDK_INPUT_READ, pty_input_func, inst);
gtk_widget_add_events(GTK_WIDGET(inst->area),
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK |
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK | GDK_BUTTON_MOTION_MASK);
gtk_widget_show(inst->area);
gtk_widget_show(inst->sbar);
gtk_widget_show(GTK_WIDGET(inst->hbox));
gtk_widget_show(inst->window);
inst->textcursor = make_mouse_ptr(GDK_XTERM);
inst->rawcursor = make_mouse_ptr(GDK_LEFT_PTR);
inst->blankcursor = make_mouse_ptr(-1);
make_mouse_ptr(-2); /* clean up cursor font */
inst->currcursor = inst->textcursor;
show_mouseptr(1);
term_init();
term_size(24, 80, 2000);
gtk_main();
return 0;
}
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