2 * gtk.c: GTK front end for my puzzle collection.
11 #include <gdk/gdkkeysyms.h>
15 /* ----------------------------------------------------------------------
16 * Error reporting functions used elsewhere.
19 void fatal(char *fmt
, ...)
23 fprintf(stderr
, "fatal error: ");
26 vfprintf(stderr
, fmt
, ap
);
29 fprintf(stderr
, "\n");
33 /* ----------------------------------------------------------------------
34 * GTK front end to puzzles.
38 * This structure holds all the data relevant to a single window.
39 * In principle this would allow us to open multiple independent
40 * puzzle windows, although I can't currently see any real point in
41 * doing so. I'm just coding cleanly because there's no
42 * particularly good reason not to.
54 int bbox_l
, bbox_r
, bbox_u
, bbox_d
;
55 int timer_active
, timer_id
;
58 void frontend_default_colour(frontend
*fe
, float *output
)
60 GdkColor col
= fe
->window
->style
->bg
[GTK_STATE_NORMAL
];
61 output
[0] = col
.red
/ 65535.0;
62 output
[1] = col
.green
/ 65535.0;
63 output
[2] = col
.blue
/ 65535.0;
66 void start_draw(frontend
*fe
)
68 fe
->gc
= gdk_gc_new(fe
->area
->window
);
75 void draw_rect(frontend
*fe
, int x
, int y
, int w
, int h
, int colour
)
77 gdk_gc_set_foreground(fe
->gc
, &fe
->colours
[colour
]);
78 gdk_draw_rectangle(fe
->pixmap
, fe
->gc
, 1, x
, y
, w
, h
);
81 void draw_line(frontend
*fe
, int x1
, int y1
, int x2
, int y2
, int colour
)
83 gdk_gc_set_foreground(fe
->gc
, &fe
->colours
[colour
]);
84 gdk_draw_line(fe
->pixmap
, fe
->gc
, x1
, y1
, x2
, y2
);
87 void draw_polygon(frontend
*fe
, int *coords
, int npoints
,
90 GdkPoint
*points
= snewn(npoints
, GdkPoint
);
93 for (i
= 0; i
< npoints
; i
++) {
94 points
[i
].x
= coords
[i
*2];
95 points
[i
].y
= coords
[i
*2+1];
98 gdk_gc_set_foreground(fe
->gc
, &fe
->colours
[colour
]);
99 gdk_draw_polygon(fe
->pixmap
, fe
->gc
, fill
, points
, npoints
);
104 void draw_update(frontend
*fe
, int x
, int y
, int w
, int h
)
106 if (fe
->bbox_l
> x
) fe
->bbox_l
= x
;
107 if (fe
->bbox_r
< x
+w
) fe
->bbox_r
= x
+w
;
108 if (fe
->bbox_u
> y
) fe
->bbox_u
= y
;
109 if (fe
->bbox_d
< y
+h
) fe
->bbox_d
= y
+h
;
112 void end_draw(frontend
*fe
)
114 gdk_gc_unref(fe
->gc
);
117 if (fe
->bbox_l
< fe
->bbox_r
&& fe
->bbox_u
< fe
->bbox_d
) {
118 gdk_draw_pixmap(fe
->area
->window
,
119 fe
->area
->style
->fg_gc
[GTK_WIDGET_STATE(fe
->area
)],
121 fe
->bbox_l
, fe
->bbox_u
,
122 fe
->bbox_l
, fe
->bbox_u
,
123 fe
->bbox_r
- fe
->bbox_l
, fe
->bbox_d
- fe
->bbox_u
);
127 static void destroy(GtkWidget
*widget
, gpointer data
)
132 static gint
key_event(GtkWidget
*widget
, GdkEventKey
*event
, gpointer data
)
134 frontend
*fe
= (frontend
*)data
;
140 if (event
->string
[0] && !event
->string
[1])
141 keyval
= (unsigned char)event
->string
[0];
142 else if (event
->keyval
== GDK_Up
|| event
->keyval
== GDK_KP_Up
||
143 event
->keyval
== GDK_KP_8
)
145 else if (event
->keyval
== GDK_Down
|| event
->keyval
== GDK_KP_Down
||
146 event
->keyval
== GDK_KP_2
)
147 keyval
= CURSOR_DOWN
;
148 else if (event
->keyval
== GDK_Left
|| event
->keyval
== GDK_KP_Left
||
149 event
->keyval
== GDK_KP_4
)
150 keyval
= CURSOR_LEFT
;
151 else if (event
->keyval
== GDK_Right
|| event
->keyval
== GDK_KP_Right
||
152 event
->keyval
== GDK_KP_6
)
153 keyval
= CURSOR_RIGHT
;
154 else if (event
->keyval
== GDK_KP_Home
|| event
->keyval
== GDK_KP_7
)
155 keyval
= CURSOR_UP_LEFT
;
156 else if (event
->keyval
== GDK_KP_End
|| event
->keyval
== GDK_KP_1
)
157 keyval
= CURSOR_DOWN_LEFT
;
158 else if (event
->keyval
== GDK_KP_Page_Up
|| event
->keyval
== GDK_KP_9
)
159 keyval
= CURSOR_UP_RIGHT
;
160 else if (event
->keyval
== GDK_KP_Page_Down
|| event
->keyval
== GDK_KP_3
)
161 keyval
= CURSOR_DOWN_RIGHT
;
166 !midend_process_key(fe
->me
, 0, 0, keyval
))
167 gtk_widget_destroy(fe
->window
);
172 static gint
button_event(GtkWidget
*widget
, GdkEventButton
*event
,
175 frontend
*fe
= (frontend
*)data
;
181 if (event
->type
!= GDK_BUTTON_PRESS
)
184 if (event
->button
== 1)
185 button
= LEFT_BUTTON
;
186 else if (event
->button
== 2)
187 button
= MIDDLE_BUTTON
;
188 else if (event
->button
== 3)
189 button
= RIGHT_BUTTON
;
191 return FALSE
; /* don't even know what button! */
193 if (!midend_process_key(fe
->me
, event
->x
, event
->y
, button
))
194 gtk_widget_destroy(fe
->window
);
199 static gint
expose_area(GtkWidget
*widget
, GdkEventExpose
*event
,
202 frontend
*fe
= (frontend
*)data
;
205 gdk_draw_pixmap(widget
->window
,
206 widget
->style
->fg_gc
[GTK_WIDGET_STATE(widget
)],
208 event
->area
.x
, event
->area
.y
,
209 event
->area
.x
, event
->area
.y
,
210 event
->area
.width
, event
->area
.height
);
215 static gint
configure_area(GtkWidget
*widget
,
216 GdkEventConfigure
*event
, gpointer data
)
218 frontend
*fe
= (frontend
*)data
;
222 gdk_pixmap_unref(fe
->pixmap
);
224 fe
->pixmap
= gdk_pixmap_new(widget
->window
, fe
->w
, fe
->h
, -1);
226 gc
= gdk_gc_new(fe
->area
->window
);
227 gdk_gc_set_foreground(gc
, &fe
->colours
[0]);
228 gdk_draw_rectangle(fe
->pixmap
, gc
, 1, 0, 0, fe
->w
, fe
->h
);
231 midend_redraw(fe
->me
);
236 static gint
timer_func(gpointer data
)
238 frontend
*fe
= (frontend
*)data
;
240 if (fe
->timer_active
)
241 midend_timer(fe
->me
, 0.02); /* may clear timer_active */
243 return fe
->timer_active
;
246 void deactivate_timer(frontend
*fe
)
248 if (fe
->timer_active
)
249 gtk_timeout_remove(fe
->timer_id
);
250 fe
->timer_active
= FALSE
;
253 void activate_timer(frontend
*fe
)
255 if (!fe
->timer_active
)
256 fe
->timer_id
= gtk_timeout_add(20, timer_func
, fe
);
257 fe
->timer_active
= TRUE
;
260 static void menu_key_event(GtkMenuItem
*menuitem
, gpointer data
)
262 frontend
*fe
= (frontend
*)data
;
263 int key
= GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(menuitem
),
265 if (!midend_process_key(fe
->me
, 0, 0, key
))
266 gtk_widget_destroy(fe
->window
);
269 static void menu_preset_event(GtkMenuItem
*menuitem
, gpointer data
)
271 frontend
*fe
= (frontend
*)data
;
272 game_params
*params
=
273 (game_params
*)gtk_object_get_data(GTK_OBJECT(menuitem
), "user-data");
276 midend_set_params(fe
->me
, params
);
277 midend_new_game(fe
->me
, NULL
);
278 midend_size(fe
->me
, &x
, &y
);
279 gtk_drawing_area_size(GTK_DRAWING_AREA(fe
->area
), x
, y
);
284 static GtkWidget
*add_menu_item_with_key(frontend
*fe
, GtkContainer
*cont
,
287 GtkWidget
*menuitem
= gtk_menu_item_new_with_label(text
);
288 gtk_container_add(cont
, menuitem
);
289 gtk_object_set_data(GTK_OBJECT(menuitem
), "user-data",
290 GINT_TO_POINTER(key
));
291 gtk_signal_connect(GTK_OBJECT(menuitem
), "activate",
292 GTK_SIGNAL_FUNC(menu_key_event
), fe
);
293 gtk_widget_show(menuitem
);
297 static void add_menu_separator(GtkContainer
*cont
)
299 GtkWidget
*menuitem
= gtk_menu_item_new();
300 gtk_container_add(cont
, menuitem
);
301 gtk_widget_show(menuitem
);
304 static frontend
*new_window(void)
308 GtkWidget
*menubar
, *menu
, *menuitem
;
313 fe
->me
= midend_new(fe
);
314 midend_new_game(fe
->me
, NULL
);
316 fe
->window
= gtk_window_new(GTK_WINDOW_TOPLEVEL
);
318 gtk_window_set_resizable(GTK_WINDOW(fe
->window
), FALSE
);
320 gtk_window_set_policy(GTK_WINDOW(fe
->window
), FALSE
, FALSE
, TRUE
);
322 vbox
= GTK_BOX(gtk_vbox_new(FALSE
, 0));
323 gtk_container_add(GTK_CONTAINER(fe
->window
), GTK_WIDGET(vbox
));
324 gtk_widget_show(GTK_WIDGET(vbox
));
326 menubar
= gtk_menu_bar_new();
327 gtk_box_pack_start(vbox
, menubar
, FALSE
, FALSE
, 0);
328 gtk_widget_show(menubar
);
330 menuitem
= gtk_menu_item_new_with_label("Game");
331 gtk_container_add(GTK_CONTAINER(menubar
), menuitem
);
332 gtk_widget_show(menuitem
);
334 menu
= gtk_menu_new();
335 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem
), menu
);
337 add_menu_item_with_key(fe
, GTK_CONTAINER(menu
), "New", 'n');
338 add_menu_item_with_key(fe
, GTK_CONTAINER(menu
), "Restart", 'r');
340 if ((n
= midend_num_presets(fe
->me
)) > 0) {
344 menuitem
= gtk_menu_item_new_with_label("Type");
345 gtk_container_add(GTK_CONTAINER(menu
), menuitem
);
346 gtk_widget_show(menuitem
);
348 submenu
= gtk_menu_new();
349 gtk_menu_item_set_submenu(GTK_MENU_ITEM(menuitem
), submenu
);
351 for (i
= 0; i
< n
; i
++) {
355 midend_fetch_preset(fe
->me
, i
, &name
, ¶ms
);
357 menuitem
= gtk_menu_item_new_with_label(name
);
358 gtk_container_add(GTK_CONTAINER(submenu
), menuitem
);
359 gtk_object_set_data(GTK_OBJECT(menuitem
), "user-data", params
);
360 gtk_signal_connect(GTK_OBJECT(menuitem
), "activate",
361 GTK_SIGNAL_FUNC(menu_preset_event
), fe
);
362 gtk_widget_show(menuitem
);
366 add_menu_separator(GTK_CONTAINER(menu
));
367 add_menu_item_with_key(fe
, GTK_CONTAINER(menu
), "Undo", 'u');
368 add_menu_item_with_key(fe
, GTK_CONTAINER(menu
), "Redo", '\x12');
369 add_menu_separator(GTK_CONTAINER(menu
));
370 add_menu_item_with_key(fe
, GTK_CONTAINER(menu
), "Exit", 'q');
377 fe
->colmap
= gdk_colormap_get_system();
378 colours
= midend_colours(fe
->me
, &ncolours
);
379 fe
->ncolours
= ncolours
;
380 fe
->colours
= snewn(ncolours
, GdkColor
);
381 for (i
= 0; i
< ncolours
; i
++) {
382 fe
->colours
[i
].red
= colours
[i
*3] * 0xFFFF;
383 fe
->colours
[i
].green
= colours
[i
*3+1] * 0xFFFF;
384 fe
->colours
[i
].blue
= colours
[i
*3+2] * 0xFFFF;
386 success
= snewn(ncolours
, gboolean
);
387 gdk_colormap_alloc_colors(fe
->colmap
, fe
->colours
, ncolours
,
388 FALSE
, FALSE
, success
);
389 for (i
= 0; i
< ncolours
; i
++) {
391 g_error("couldn't allocate colour %d (#%02x%02x%02x)\n",
392 i
, fe
->colours
[i
].red
>> 8,
393 fe
->colours
[i
].green
>> 8,
394 fe
->colours
[i
].blue
>> 8);
398 fe
->area
= gtk_drawing_area_new();
399 midend_size(fe
->me
, &x
, &y
);
400 gtk_drawing_area_size(GTK_DRAWING_AREA(fe
->area
), x
, y
);
404 gtk_box_pack_end(vbox
, fe
->area
, FALSE
, FALSE
, 0);
408 fe
->timer_active
= FALSE
;
410 gtk_signal_connect(GTK_OBJECT(fe
->window
), "destroy",
411 GTK_SIGNAL_FUNC(destroy
), fe
);
412 gtk_signal_connect(GTK_OBJECT(fe
->window
), "key_press_event",
413 GTK_SIGNAL_FUNC(key_event
), fe
);
414 gtk_signal_connect(GTK_OBJECT(fe
->area
), "button_press_event",
415 GTK_SIGNAL_FUNC(button_event
), fe
);
416 gtk_signal_connect(GTK_OBJECT(fe
->area
), "expose_event",
417 GTK_SIGNAL_FUNC(expose_area
), fe
);
418 gtk_signal_connect(GTK_OBJECT(fe
->area
), "configure_event",
419 GTK_SIGNAL_FUNC(configure_area
), fe
);
421 gtk_widget_add_events(GTK_WIDGET(fe
->area
), GDK_BUTTON_PRESS_MASK
);
423 gtk_widget_show(fe
->area
);
424 gtk_widget_show(fe
->window
);
429 int main(int argc
, char **argv
)
433 gtk_init(&argc
, &argv
);