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puzzles/gtk.c
Simon Tatham 9e240e45df Introduce the concept of a `game_aux_info' structure. This is 
constructed at the same time as an internally generated game seed,
so that it can preserve any interesting information known by the
program at generation time but not physically contained within the
text of the game seed itself. (Such as, for example, the solution.)
Currently not used for anything yet, but it will be.

[originally from svn r5729]
2005-05-02 10:12:26 +00:00

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/*
* gtk.c: GTK front end for my puzzle collection.
*/
#include <stdio.h>
#include <assert.h>
#include <stdlib.h>
#include <time.h>
#include <stdarg.h>
#include <string.h>
#include <sys/time.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <gdk/gdkx.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include "puzzles.h"
/* ----------------------------------------------------------------------
* Error reporting functions used elsewhere.
*/
void fatal(char *fmt, ...)
{
va_list ap;
fprintf(stderr, "fatal error: ");
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
fprintf(stderr, "\n");
exit(1);
}
/* ----------------------------------------------------------------------
* GTK front end to puzzles.
*/
struct font {
GdkFont *font;
int type;
int size;
};
/*
* This structure holds all the data relevant to a single window.
* In principle this would allow us to open multiple independent
* puzzle windows, although I can't currently see any real point in
* doing so. I'm just coding cleanly because there's no
* particularly good reason not to.
*/
struct frontend {
GtkWidget *window;
GtkWidget *area;
GtkWidget *statusbar;
guint statusctx;
GdkPixmap *pixmap;
GdkColor *colours;
int ncolours;
GdkColormap *colmap;
int w, h;
midend_data *me;
GdkGC *gc;
int bbox_l, bbox_r, bbox_u, bbox_d;
int timer_active, timer_id;
struct timeval last_time;
struct font *fonts;
int nfonts, fontsize;
config_item *cfg;
int cfg_which, cfgret;
GtkWidget *cfgbox;
char *paste_data;
int paste_data_len;
};
void get_random_seed(void **randseed, int *randseedsize)
{
time_t *tp = snew(time_t);
time(tp);
*randseed = (void *)tp;
*randseedsize = sizeof(time_t);
}
void frontend_default_colour(frontend *fe, float *output)
{
GdkColor col = fe->window->style->bg[GTK_STATE_NORMAL];
output[0] = col.red / 65535.0;
output[1] = col.green / 65535.0;
output[2] = col.blue / 65535.0;
}
void status_bar(frontend *fe, char *text)
{
assert(fe->statusbar);
gtk_statusbar_pop(GTK_STATUSBAR(fe->statusbar), fe->statusctx);
gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx, text);
}
void start_draw(frontend *fe)
{
fe->gc = gdk_gc_new(fe->area->window);
fe->bbox_l = fe->w;
fe->bbox_r = 0;
fe->bbox_u = fe->h;
fe->bbox_d = 0;
}
void clip(frontend *fe, int x, int y, int w, int h)
{
GdkRectangle rect;
rect.x = x;
rect.y = y;
rect.width = w;
rect.height = h;
gdk_gc_set_clip_rectangle(fe->gc, &rect);
}
void unclip(frontend *fe)
{
GdkRectangle rect;
rect.x = 0;
rect.y = 0;
rect.width = fe->w;
rect.height = fe->h;
gdk_gc_set_clip_rectangle(fe->gc, &rect);
}
void draw_text(frontend *fe, int x, int y, int fonttype, int fontsize,
int align, int colour, char *text)
{
int i;
/*
* Find or create the font.
*/
for (i = 0; i < fe->nfonts; i++)
if (fe->fonts[i].type == fonttype && fe->fonts[i].size == fontsize)
break;
if (i == fe->nfonts) {
if (fe->fontsize <= fe->nfonts) {
fe->fontsize = fe->nfonts + 10;
fe->fonts = sresize(fe->fonts, fe->fontsize, struct font);
}
fe->nfonts++;
fe->fonts[i].type = fonttype;
fe->fonts[i].size = fontsize;
#if GTK_CHECK_VERSION(2,0,0)
/*
* Use Pango to find the closest match to the requested
* font.
*/
{
PangoFontDescription *fd;
fd = pango_font_description_new();
/* `Monospace' and `Sans' are meta-families guaranteed to exist */
pango_font_description_set_family(fd, fonttype == FONT_FIXED ?
"Monospace" : "Sans");
pango_font_description_set_weight(fd, PANGO_WEIGHT_BOLD);
/*
* I found some online Pango documentation which
* described a function called
* pango_font_description_set_absolute_size(), which is
* _exactly_ what I want here. Unfortunately, none of
* my local Pango installations have it (presumably
* they're too old), so I'm going to have to hack round
* it by figuring out the point size myself. This
* limits me to X and probably also breaks in later
* Pango installations, so ideally I should add another
* CHECK_VERSION type ifdef and use set_absolute_size
* where available. All very annoying.
*/
#ifdef HAVE_SENSIBLE_ABSOLUTE_SIZE_FUNCTION
pango_font_description_set_absolute_size(fd, PANGO_SCALE*fontsize);
#else
{
Display *d = GDK_DISPLAY();
int s = DefaultScreen(d);
double resolution =
(PANGO_SCALE * 72.27 / 25.4) *
((double) DisplayWidthMM(d, s) / DisplayWidth (d, s));
pango_font_description_set_size(fd, resolution * fontsize);
}
#endif
fe->fonts[i].font = gdk_font_from_description(fd);
pango_font_description_free(fd);
}
if (!fe->fonts[i].font)
#endif
/*
* In GTK 1.2, I don't know of any plausible way to
* pick a suitable font, so I'm just going to be
* tedious.
*
* This is also fallback code called if the Pango
* approach fails to find an appropriate font.
*/
fe->fonts[i].font = gdk_font_load(fonttype == FONT_FIXED ?
"fixed" : "variable");
}
/*
* Find string dimensions and process alignment.
*/
{
int lb, rb, wid, asc, desc;
/*
* Measure vertical string extents with respect to the same
* string always...
*/
gdk_string_extents(fe->fonts[i].font,
"ABCDEFGHIJKLMNOPQRSTUVWXYZ",
&lb, &rb, &wid, &asc, &desc);
if (align & ALIGN_VCENTRE)
y += asc - (asc+desc)/2;
/*
* ... but horizontal extents with respect to the provided
* string. This means that multiple pieces of text centred
* on the same y-coordinate don't have different baselines.
*/
gdk_string_extents(fe->fonts[i].font, text,
&lb, &rb, &wid, &asc, &desc);
if (align & ALIGN_HCENTRE)
x -= wid / 2;
else if (align & ALIGN_HRIGHT)
x -= wid;
}
/*
* Set colour and actually draw text.
*/
gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
gdk_draw_string(fe->pixmap, fe->fonts[i].font, fe->gc, x, y, text);
}
void draw_rect(frontend *fe, int x, int y, int w, int h, int colour)
{
gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
gdk_draw_rectangle(fe->pixmap, fe->gc, 1, x, y, w, h);
}
void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour)
{
gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
gdk_draw_line(fe->pixmap, fe->gc, x1, y1, x2, y2);
}
void draw_polygon(frontend *fe, int *coords, int npoints,
int fill, int colour)
{
GdkPoint *points = snewn(npoints, GdkPoint);
int i;
for (i = 0; i < npoints; i++) {
points[i].x = coords[i*2];
points[i].y = coords[i*2+1];
}
gdk_gc_set_foreground(fe->gc, &fe->colours[colour]);
gdk_draw_polygon(fe->pixmap, fe->gc, fill, points, npoints);
sfree(points);
}
void draw_update(frontend *fe, int x, int y, int w, int h)
{
if (fe->bbox_l > x ) fe->bbox_l = x ;
if (fe->bbox_r < x+w) fe->bbox_r = x+w;
if (fe->bbox_u > y ) fe->bbox_u = y ;
if (fe->bbox_d < y+h) fe->bbox_d = y+h;
}
void end_draw(frontend *fe)
{
gdk_gc_unref(fe->gc);
fe->gc = NULL;
if (fe->bbox_l < fe->bbox_r && fe->bbox_u < fe->bbox_d) {
gdk_draw_pixmap(fe->area->window,
fe->area->style->fg_gc[GTK_WIDGET_STATE(fe->area)],
fe->pixmap,
fe->bbox_l, fe->bbox_u,
fe->bbox_l, fe->bbox_u,
fe->bbox_r - fe->bbox_l, fe->bbox_d - fe->bbox_u);
}
}
static void destroy(GtkWidget *widget, gpointer data)
{
frontend *fe = (frontend *)data;
deactivate_timer(fe);
gtk_main_quit();
}
static gint key_event(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
frontend *fe = (frontend *)data;
int keyval;
if (!fe->pixmap)
return TRUE;
if (event->string[0] && !event->string[1])
keyval = (unsigned char)event->string[0];
else if (event->keyval == GDK_Up || event->keyval == GDK_KP_Up ||
event->keyval == GDK_KP_8)
keyval = CURSOR_UP;
else if (event->keyval == GDK_Down || event->keyval == GDK_KP_Down ||
event->keyval == GDK_KP_2)
keyval = CURSOR_DOWN;
else if (event->keyval == GDK_Left || event->keyval == GDK_KP_Left ||
event->keyval == GDK_KP_4)
keyval = CURSOR_LEFT;
else if (event->keyval == GDK_Right || event->keyval == GDK_KP_Right ||
event->keyval == GDK_KP_6)
keyval = CURSOR_RIGHT;
else if (event->keyval == GDK_KP_Home || event->keyval == GDK_KP_7)
keyval = CURSOR_UP_LEFT;
else if (event->keyval == GDK_KP_End || event->keyval == GDK_KP_1)
keyval = CURSOR_DOWN_LEFT;
else if (event->keyval == GDK_KP_Page_Up || event->keyval == GDK_KP_9)
keyval = CURSOR_UP_RIGHT;
else if (event->keyval == GDK_KP_Page_Down || event->keyval == GDK_KP_3)
keyval = CURSOR_DOWN_RIGHT;
else
keyval = -1;
if (keyval >= 0 &&
!midend_process_key(fe->me, 0, 0, keyval))
gtk_widget_destroy(fe->window);
return TRUE;
}
static gint button_event(GtkWidget *widget, GdkEventButton *event,
gpointer data)
{
frontend *fe = (frontend *)data;
int button;
if (!fe->pixmap)
return TRUE;
if (event->type != GDK_BUTTON_PRESS && event->type != GDK_BUTTON_RELEASE)
return TRUE;
if (event->button == 2 || (event->state & GDK_SHIFT_MASK))
button = MIDDLE_BUTTON;
else if (event->button == 1)
button = LEFT_BUTTON;
else if (event->button == 3)
button = RIGHT_BUTTON;
else
return FALSE; /* don't even know what button! */
if (event->type == GDK_BUTTON_RELEASE)
button += LEFT_RELEASE - LEFT_BUTTON;
if (!midend_process_key(fe->me, event->x, event->y, button))
gtk_widget_destroy(fe->window);
return TRUE;
}
static gint motion_event(GtkWidget *widget, GdkEventMotion *event,
gpointer data)
{
frontend *fe = (frontend *)data;
int button;
if (!fe->pixmap)
return TRUE;
if (event->state & (GDK_BUTTON2_MASK | GDK_SHIFT_MASK))
button = MIDDLE_DRAG;
else if (event->state & GDK_BUTTON1_MASK)
button = LEFT_DRAG;
else if (event->state & GDK_BUTTON3_MASK)
button = RIGHT_DRAG;
else
return FALSE; /* don't even know what button! */
if (!midend_process_key(fe->me, event->x, event->y, button))
gtk_widget_destroy(fe->window);
return TRUE;
}
static gint expose_area(GtkWidget *widget, GdkEventExpose *event,
gpointer data)
{
frontend *fe = (frontend *)data;
if (fe->pixmap) {
gdk_draw_pixmap(widget->window,
widget->style->fg_gc[GTK_WIDGET_STATE(widget)],
fe->pixmap,
event->area.x, event->area.y,
event->area.x, event->area.y,
event->area.width, event->area.height);
}
return TRUE;
}
static gint map_window(GtkWidget *widget, GdkEvent *event,
gpointer data)
{
frontend *fe = (frontend *)data;
/*
* Apparently we need to do this because otherwise the status
* bar will fail to update immediately. Annoying, but there we
* go.
*/
gtk_widget_queue_draw(fe->window);
return TRUE;
}
static gint configure_area(GtkWidget *widget,
GdkEventConfigure *event, gpointer data)
{
frontend *fe = (frontend *)data;
GdkGC *gc;
if (fe->pixmap)
gdk_pixmap_unref(fe->pixmap);
fe->pixmap = gdk_pixmap_new(widget->window, fe->w, fe->h, -1);
gc = gdk_gc_new(fe->area->window);
gdk_gc_set_foreground(gc, &fe->colours[0]);
gdk_draw_rectangle(fe->pixmap, gc, 1, 0, 0, fe->w, fe->h);
gdk_gc_unref(gc);
midend_redraw(fe->me);
return TRUE;
}
static gint timer_func(gpointer data)
{
frontend *fe = (frontend *)data;
if (fe->timer_active) {
struct timeval now;
float elapsed;
gettimeofday(&now, NULL);
elapsed = ((now.tv_usec - fe->last_time.tv_usec) * 0.000001F +
(now.tv_sec - fe->last_time.tv_sec));
midend_timer(fe->me, elapsed); /* may clear timer_active */
fe->last_time = now;
}
return fe->timer_active;
}
void deactivate_timer(frontend *fe)
{
if (fe->timer_active)
gtk_timeout_remove(fe->timer_id);
fe->timer_active = FALSE;
}
void activate_timer(frontend *fe)
{
if (!fe->timer_active) {
fe->timer_id = gtk_timeout_add(20, timer_func, fe);
gettimeofday(&fe->last_time, NULL);
}
fe->timer_active = TRUE;
}
static void window_destroy(GtkWidget *widget, gpointer data)
{
gtk_main_quit();
}
static void errmsg_button_clicked(GtkButton *button, gpointer data)
{
gtk_widget_destroy(GTK_WIDGET(data));
}
static int win_key_press(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
GtkObject *cancelbutton = GTK_OBJECT(data);
/*
* `Escape' effectively clicks the cancel button
*/
if (event->keyval == GDK_Escape) {
gtk_signal_emit_by_name(GTK_OBJECT(cancelbutton), "clicked");
return TRUE;
}
return FALSE;
}
void error_box(GtkWidget *parent, char *msg)
{
GtkWidget *window, *hbox, *text, *ok;
window = gtk_dialog_new();
text = gtk_label_new(msg);
gtk_misc_set_alignment(GTK_MISC(text), 0.0, 0.0);
hbox = gtk_hbox_new(FALSE, 0);
gtk_box_pack_start(GTK_BOX(hbox), text, FALSE, FALSE, 20);
gtk_box_pack_start(GTK_BOX(GTK_DIALOG(window)->vbox),
hbox, FALSE, FALSE, 20);
gtk_widget_show(text);
gtk_widget_show(hbox);
gtk_window_set_title(GTK_WINDOW(window), "Error");
gtk_label_set_line_wrap(GTK_LABEL(text), TRUE);
ok = gtk_button_new_with_label("OK");
gtk_box_pack_end(GTK_BOX(GTK_DIALOG(window)->action_area),
ok, FALSE, FALSE, 0);
gtk_widget_show(ok);
GTK_WIDGET_SET_FLAGS(ok, GTK_CAN_DEFAULT);
gtk_window_set_default(GTK_WINDOW(window), ok);
gtk_signal_connect(GTK_OBJECT(ok), "clicked",
GTK_SIGNAL_FUNC(errmsg_button_clicked), window);
gtk_signal_connect(GTK_OBJECT(window), "destroy",
GTK_SIGNAL_FUNC(window_destroy), NULL);
gtk_signal_connect(GTK_OBJECT(window), "key_press_event",
GTK_SIGNAL_FUNC(win_key_press), ok);
gtk_window_set_modal(GTK_WINDOW(window), TRUE);
gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(parent));
//set_transient_window_pos(parent, window);
gtk_widget_show(window);
gtk_main();
}
static void config_ok_button_clicked(GtkButton *button, gpointer data)
{
frontend *fe = (frontend *)data;
char *err;
err = midend_set_config(fe->me, fe->cfg_which, fe->cfg);
if (err)
error_box(fe->cfgbox, err);
else {
fe->cfgret = TRUE;
gtk_widget_destroy(fe->cfgbox);
}
}
static void config_cancel_button_clicked(GtkButton *button, gpointer data)
{
frontend *fe = (frontend *)data;
gtk_widget_destroy(fe->cfgbox);
}
static int editbox_key(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
/*
* GtkEntry has a nasty habit of eating the Return key, which
* is unhelpful since it doesn't actually _do_ anything with it
* (it calls gtk_widget_activate, but our edit boxes never need
* activating). So I catch Return before GtkEntry sees it, and
* pass it straight on to the parent widget. Effect: hitting
* Return in an edit box will now activate the default button
* in the dialog just like it will everywhere else.
*/
if (event->keyval == GDK_Return && widget->parent != NULL) {
gint return_val;
gtk_signal_emit_stop_by_name(GTK_OBJECT(widget), "key_press_event");
gtk_signal_emit_by_name(GTK_OBJECT(widget->parent), "key_press_event",
event, &return_val);
return return_val;
}
return FALSE;
}
static void editbox_changed(GtkEditable *ed, gpointer data)
{
config_item *i = (config_item *)data;
sfree(i->sval);
i->sval = dupstr(gtk_entry_get_text(GTK_ENTRY(ed)));
}
static void button_toggled(GtkToggleButton *tb, gpointer data)
{
config_item *i = (config_item *)data;
i->ival = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(tb));
}
static void droplist_sel(GtkMenuItem *item, gpointer data)
{
config_item *i = (config_item *)data;
i->ival = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
"user-data"));
}
static int get_config(frontend *fe, int which)
{
GtkWidget *w, *table, *cancel;
char *title;
config_item *i;
int y;
fe->cfg = midend_get_config(fe->me, which, &title);
fe->cfg_which = which;
fe->cfgret = FALSE;
fe->cfgbox = gtk_dialog_new();
gtk_window_set_title(GTK_WINDOW(fe->cfgbox), title);
sfree(title);
w = gtk_button_new_with_label("OK");
gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
w, FALSE, FALSE, 0);
gtk_widget_show(w);
GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
gtk_window_set_default(GTK_WINDOW(fe->cfgbox), w);
gtk_signal_connect(GTK_OBJECT(w), "clicked",
GTK_SIGNAL_FUNC(config_ok_button_clicked), fe);
w = gtk_button_new_with_label("Cancel");
gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->action_area),
w, FALSE, FALSE, 0);
gtk_widget_show(w);
gtk_signal_connect(GTK_OBJECT(w), "clicked",
GTK_SIGNAL_FUNC(config_cancel_button_clicked), fe);
cancel = w;
table = gtk_table_new(1, 2, FALSE);
y = 0;
gtk_box_pack_end(GTK_BOX(GTK_DIALOG(fe->cfgbox)->vbox),
table, FALSE, FALSE, 0);
gtk_widget_show(table);
for (i = fe->cfg; i->type != C_END; i++) {
gtk_table_resize(GTK_TABLE(table), y+1, 2);
switch (i->type) {
case C_STRING:
/*
* Edit box with a label beside it.
*/
w = gtk_label_new(i->name);
gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
3, 3);
gtk_widget_show(w);
w = gtk_entry_new();
gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
3, 3);
gtk_entry_set_text(GTK_ENTRY(w), i->sval);
gtk_signal_connect(GTK_OBJECT(w), "changed",
GTK_SIGNAL_FUNC(editbox_changed), i);
gtk_signal_connect(GTK_OBJECT(w), "key_press_event",
GTK_SIGNAL_FUNC(editbox_key), NULL);
gtk_widget_show(w);
break;
case C_BOOLEAN:
/*
* Simple checkbox.
*/
w = gtk_check_button_new_with_label(i->name);
gtk_signal_connect(GTK_OBJECT(w), "toggled",
GTK_SIGNAL_FUNC(button_toggled), i);
gtk_table_attach(GTK_TABLE(table), w, 0, 2, y, y+1,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
3, 3);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(w), i->ival);
gtk_widget_show(w);
break;
case C_CHOICES:
/*
* Drop-down list (GtkOptionMenu).
*/
w = gtk_label_new(i->name);
gtk_misc_set_alignment(GTK_MISC(w), 0.0, 0.5);
gtk_table_attach(GTK_TABLE(table), w, 0, 1, y, y+1,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
3, 3);
gtk_widget_show(w);
w = gtk_option_menu_new();
gtk_table_attach(GTK_TABLE(table), w, 1, 2, y, y+1,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
3, 3);
gtk_widget_show(w);
{
int c, val;
char *p, *q, *name;
GtkWidget *menuitem;
GtkWidget *menu = gtk_menu_new();
gtk_option_menu_set_menu(GTK_OPTION_MENU(w), menu);
c = *i->sval;
p = i->sval+1;
val = 0;
while (*p) {
q = p;
while (*q && *q != c)
q++;
name = snewn(q-p+1, char);
strncpy(name, p, q-p);
name[q-p] = '\0';
if (*q) q++; /* eat delimiter */
menuitem = gtk_menu_item_new_with_label(name);
gtk_container_add(GTK_CONTAINER(menu), menuitem);
gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
GINT_TO_POINTER(val));
gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
GTK_SIGNAL_FUNC(droplist_sel), i);
gtk_widget_show(menuitem);
val++;
p = q;
}
gtk_option_menu_set_history(GTK_OPTION_MENU(w), i->ival);
}
break;
}
y++;
}
gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "destroy",
GTK_SIGNAL_FUNC(window_destroy), NULL);
gtk_signal_connect(GTK_OBJECT(fe->cfgbox), "key_press_event",
GTK_SIGNAL_FUNC(win_key_press), cancel);
gtk_window_set_modal(GTK_WINDOW(fe->cfgbox), TRUE);
gtk_window_set_transient_for(GTK_WINDOW(fe->cfgbox),
GTK_WINDOW(fe->window));
//set_transient_window_pos(fe->window, fe->cfgbox);
gtk_widget_show(fe->cfgbox);
gtk_main();
free_cfg(fe->cfg);
return fe->cfgret;
}
static void menu_key_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
int key = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
"user-data"));
if (!midend_process_key(fe->me, 0, 0, key))
gtk_widget_destroy(fe->window);
}
static void menu_preset_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
game_params *params =
(game_params *)gtk_object_get_data(GTK_OBJECT(menuitem), "user-data");
int x, y;
midend_set_params(fe->me, params);
midend_new_game(fe->me);
midend_size(fe->me, &x, &y);
gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
fe->w = x;
fe->h = y;
}
GdkAtom compound_text_atom, utf8_string_atom;
int paste_initialised = FALSE;
void init_paste()
{
if (paste_initialised)
return;
if (!compound_text_atom)
compound_text_atom = gdk_atom_intern("COMPOUND_TEXT", FALSE);
if (!utf8_string_atom)
utf8_string_atom = gdk_atom_intern("UTF8_STRING", FALSE);
/*
* Ensure that all the cut buffers exist - according to the
* ICCCM, we must do this before we start using cut buffers.
*/
XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
XA_CUT_BUFFER0, XA_STRING, 8, PropModeAppend, "", 0);
XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
XA_CUT_BUFFER1, XA_STRING, 8, PropModeAppend, "", 0);
XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
XA_CUT_BUFFER2, XA_STRING, 8, PropModeAppend, "", 0);
XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
XA_CUT_BUFFER3, XA_STRING, 8, PropModeAppend, "", 0);
XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
XA_CUT_BUFFER4, XA_STRING, 8, PropModeAppend, "", 0);
XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
XA_CUT_BUFFER5, XA_STRING, 8, PropModeAppend, "", 0);
XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
XA_CUT_BUFFER6, XA_STRING, 8, PropModeAppend, "", 0);
XChangeProperty(GDK_DISPLAY(), GDK_ROOT_WINDOW(),
XA_CUT_BUFFER7, XA_STRING, 8, PropModeAppend, "", 0);
}
/* Store data in a cut-buffer. */
void store_cutbuffer(char *ptr, int len)
{
/* ICCCM says we must rotate the buffers before storing to buffer 0. */
XRotateBuffers(GDK_DISPLAY(), 1);
XStoreBytes(GDK_DISPLAY(), ptr, len);
}
void write_clip(frontend *fe, char *data)
{
init_paste();
if (fe->paste_data)
sfree(fe->paste_data);
/*
* For this simple application we can safely assume that the
* data passed to this function is pure ASCII, which means we
* can return precisely the same stuff for types STRING,
* COMPOUND_TEXT or UTF8_STRING.
*/
fe->paste_data = data;
fe->paste_data_len = strlen(data);
store_cutbuffer(fe->paste_data, fe->paste_data_len);
if (gtk_selection_owner_set(fe->area, GDK_SELECTION_PRIMARY,
CurrentTime)) {
gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
GDK_SELECTION_TYPE_STRING, 1);
gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
compound_text_atom, 1);
gtk_selection_add_target(fe->area, GDK_SELECTION_PRIMARY,
utf8_string_atom, 1);
}
}
void selection_get(GtkWidget *widget, GtkSelectionData *seldata,
guint info, guint time_stamp, gpointer data)
{
frontend *fe = (frontend *)data;
gtk_selection_data_set(seldata, seldata->target, 8,
fe->paste_data, fe->paste_data_len);
}
gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
gpointer data)
{
frontend *fe = (frontend *)data;
if (fe->paste_data)
sfree(fe->paste_data);
fe->paste_data = NULL;
fe->paste_data_len = 0;
return TRUE;
}
static void menu_copy_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
char *text;
text = midend_text_format(fe->me);
if (text) {
write_clip(fe, text);
} else {
gdk_beep();
}
}
static void menu_config_event(GtkMenuItem *menuitem, gpointer data)
{
frontend *fe = (frontend *)data;
int which = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem),
"user-data"));
int x, y;
if (!get_config(fe, which))
return;
midend_new_game(fe->me);
midend_size(fe->me, &x, &y);
gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
fe->w = x;
fe->h = y;
}
static GtkWidget *add_menu_item_with_key(frontend *fe, GtkContainer *cont,
char *text, int key)
{
GtkWidget *menuitem = gtk_menu_item_new_with_label(text);
gtk_container_add(cont, menuitem);
gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
GINT_TO_POINTER(key));
gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
GTK_SIGNAL_FUNC(menu_key_event), fe);
gtk_widget_show(menuitem);
return menuitem;
}
static void add_menu_separator(GtkContainer *cont)
{
GtkWidget *menuitem = gtk_menu_item_new();
gtk_container_add(cont, menuitem);
gtk_widget_show(menuitem);
}
static frontend *new_window(char *game_id, char **error)
{
frontend *fe;
GtkBox *vbox;
GtkWidget *menubar, *menu, *menuitem;
int x, y, n;
fe = snew(frontend);
fe->me = midend_new(fe, &thegame);
if (game_id) {
*error = midend_game_id(fe->me, game_id, FALSE);
if (*error) {
midend_free(fe->me);
sfree(fe);
return NULL;
}
}
midend_new_game(fe->me);
fe->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(fe->window), thegame.name);
#if 0
gtk_window_set_resizable(GTK_WINDOW(fe->window), FALSE);
#else
gtk_window_set_policy(GTK_WINDOW(fe->window), FALSE, FALSE, TRUE);
#endif
vbox = GTK_BOX(gtk_vbox_new(FALSE, 0));
gtk_container_add(GTK_CONTAINER(fe->window), GTK_WIDGET(vbox));
gtk_widget_show(GTK_WIDGET(vbox));
menubar = gtk_menu_bar_new();
gtk_box_pack_start(vbox, menubar, FALSE, FALSE, 0);
gtk_widget_show(menubar);
menuitem = gtk_menu_item_new_with_label("Game");
gtk_container_add(GTK_CONTAINER(menubar), menuitem);
gtk_widget_show(menuitem);
menu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), menu);
add_menu_item_with_key(fe, GTK_CONTAINER(menu), "New", 'n');
add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Restart", 'r');
menuitem = gtk_menu_item_new_with_label("Specific...");
gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
GINT_TO_POINTER(CFG_SEED));
gtk_container_add(GTK_CONTAINER(menu), menuitem);
gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
GTK_SIGNAL_FUNC(menu_config_event), fe);
gtk_widget_show(menuitem);
if ((n = midend_num_presets(fe->me)) > 0 || thegame.can_configure) {
GtkWidget *submenu;
int i;
menuitem = gtk_menu_item_new_with_label("Type");
gtk_container_add(GTK_CONTAINER(menubar), menuitem);
gtk_widget_show(menuitem);
submenu = gtk_menu_new();
gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem), submenu);
for (i = 0; i < n; i++) {
char *name;
game_params *params;
midend_fetch_preset(fe->me, i, &name, &params);
menuitem = gtk_menu_item_new_with_label(name);
gtk_container_add(GTK_CONTAINER(submenu), menuitem);
gtk_object_set_data(GTK_OBJECT(menuitem), "user-data", params);
gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
GTK_SIGNAL_FUNC(menu_preset_event), fe);
gtk_widget_show(menuitem);
}
if (thegame.can_configure) {
menuitem = gtk_menu_item_new_with_label("Custom...");
gtk_object_set_data(GTK_OBJECT(menuitem), "user-data",
GPOINTER_TO_INT(CFG_SETTINGS));
gtk_container_add(GTK_CONTAINER(submenu), menuitem);
gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
GTK_SIGNAL_FUNC(menu_config_event), fe);
gtk_widget_show(menuitem);
}
}
add_menu_separator(GTK_CONTAINER(menu));
add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Undo", 'u');
add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Redo", '\x12');
if (thegame.can_format_as_text) {
add_menu_separator(GTK_CONTAINER(menu));
menuitem = gtk_menu_item_new_with_label("Copy");
gtk_container_add(GTK_CONTAINER(menu), menuitem);
gtk_signal_connect(GTK_OBJECT(menuitem), "activate",
GTK_SIGNAL_FUNC(menu_copy_event), fe);
gtk_widget_show(menuitem);
}
add_menu_separator(GTK_CONTAINER(menu));
add_menu_item_with_key(fe, GTK_CONTAINER(menu), "Exit", 'q');
{
int i, ncolours;
float *colours;
gboolean *success;
fe->colmap = gdk_colormap_get_system();
colours = midend_colours(fe->me, &ncolours);
fe->ncolours = ncolours;
fe->colours = snewn(ncolours, GdkColor);
for (i = 0; i < ncolours; i++) {
fe->colours[i].red = colours[i*3] * 0xFFFF;
fe->colours[i].green = colours[i*3+1] * 0xFFFF;
fe->colours[i].blue = colours[i*3+2] * 0xFFFF;
}
success = snewn(ncolours, gboolean);
gdk_colormap_alloc_colors(fe->colmap, fe->colours, ncolours,
FALSE, FALSE, success);
for (i = 0; i < ncolours; i++) {
if (!success[i])
g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
i, fe->colours[i].red >> 8,
fe->colours[i].green >> 8,
fe->colours[i].blue >> 8);
}
}
if (midend_wants_statusbar(fe->me)) {
GtkWidget *viewport;
GtkRequisition req;
viewport = gtk_viewport_new(NULL, NULL);
gtk_viewport_set_shadow_type(GTK_VIEWPORT(viewport), GTK_SHADOW_NONE);
fe->statusbar = gtk_statusbar_new();
gtk_container_add(GTK_CONTAINER(viewport), fe->statusbar);
gtk_widget_show(viewport);
gtk_box_pack_end(vbox, viewport, FALSE, FALSE, 0);
gtk_widget_show(fe->statusbar);
fe->statusctx = gtk_statusbar_get_context_id
(GTK_STATUSBAR(fe->statusbar), "game");
gtk_statusbar_push(GTK_STATUSBAR(fe->statusbar), fe->statusctx,
"test");
gtk_widget_size_request(fe->statusbar, &req);
#if 0
/* For GTK 2.0, should we be using gtk_widget_set_size_request? */
#endif
gtk_widget_set_usize(viewport, -1, req.height);
} else
fe->statusbar = NULL;
fe->area = gtk_drawing_area_new();
midend_size(fe->me, &x, &y);
gtk_drawing_area_size(GTK_DRAWING_AREA(fe->area), x, y);
fe->w = x;
fe->h = y;
gtk_box_pack_end(vbox, fe->area, FALSE, FALSE, 0);
fe->pixmap = NULL;
fe->fonts = NULL;
fe->nfonts = fe->fontsize = 0;
fe->timer_active = FALSE;
fe->paste_data = NULL;
fe->paste_data_len = 0;
gtk_signal_connect(GTK_OBJECT(fe->window), "destroy",
GTK_SIGNAL_FUNC(destroy), fe);
gtk_signal_connect(GTK_OBJECT(fe->window), "key_press_event",
GTK_SIGNAL_FUNC(key_event), fe);
gtk_signal_connect(GTK_OBJECT(fe->area), "button_press_event",
GTK_SIGNAL_FUNC(button_event), fe);
gtk_signal_connect(GTK_OBJECT(fe->area), "button_release_event",
GTK_SIGNAL_FUNC(button_event), fe);
gtk_signal_connect(GTK_OBJECT(fe->area), "motion_notify_event",
GTK_SIGNAL_FUNC(motion_event), fe);
gtk_signal_connect(GTK_OBJECT(fe->area), "selection_get",
GTK_SIGNAL_FUNC(selection_get), fe);
gtk_signal_connect(GTK_OBJECT(fe->area), "selection_clear_event",
GTK_SIGNAL_FUNC(selection_clear), fe);
gtk_signal_connect(GTK_OBJECT(fe->area), "expose_event",
GTK_SIGNAL_FUNC(expose_area), fe);
gtk_signal_connect(GTK_OBJECT(fe->window), "map_event",
GTK_SIGNAL_FUNC(map_window), fe);
gtk_signal_connect(GTK_OBJECT(fe->area), "configure_event",
GTK_SIGNAL_FUNC(configure_area), fe);
gtk_widget_add_events(GTK_WIDGET(fe->area),
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON_MOTION_MASK);
gtk_widget_show(fe->area);
gtk_widget_show(fe->window);
return fe;
}
int main(int argc, char **argv)
{
char *pname = argv[0];
char *error;
/*
* Special standalone mode for generating puzzle IDs on the
* command line. Useful for generating puzzles to be printed
* out and solved offline (for puzzles where that even makes
* sense - Solo, for example, is a lot more pencil-and-paper
* friendly than Net!)
*
* Usage:
*
* <puzzle-name> --generate [<n> [<params>]]
*
* <n>, if present, is the number of puzzle IDs to generate.
* <params>, if present, is the same type of parameter string
* you would pass to the puzzle when running it in GUI mode,
* including optional extras such as the expansion factor in
* Rectangles and the difficulty level in Solo.
*
* If you specify <params>, you must also specify <n> (although
* you may specify it to be 1). Sorry; that was the
* simplest-to-parse command-line syntax I came up with.
*/
if (argc > 1 && !strcmp(argv[1], "--generate")) {
int n = 1;
char *params = NULL;
game_params *par;
random_state *rs;
char *parstr;
{
void *seed;
int seedlen;
get_random_seed(&seed, &seedlen);
rs = random_init(seed, seedlen);
}
if (argc > 2)
n = atoi(argv[2]);
if (argc > 3)
params = argv[3];
if (params)
par = thegame.decode_params(params);
else
par = thegame.default_params();
parstr = thegame.encode_params(par);
while (n-- > 0) {
game_aux_info *aux = NULL;
char *seed = thegame.new_seed(par, rs, &aux);
printf("%s:%s\n", parstr, seed);
sfree(seed);
if (aux)
thegame.free_aux_info(aux);
}
return 0;
} else {
gtk_init(&argc, &argv);
if (!new_window(argc > 1 ? argv[1] : NULL, &error)) {
fprintf(stderr, "%s: %s\n", pname, error);
return 1;
}
gtk_main();
}
return 0;
}
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