gntwm.c

Linux下的多协议即时通讯程序源代码

					 G_TYPE_FROM_CLASS(klass),
					 G_SIGNAL_RUN_LAST,
					 G_STRUCT_OFFSET(GntWMClass, give_focus),
					 NULL, NULL,
					 g_cclosure_marshal_VOID__POINTER,
					 G_TYPE_NONE, 1, G_TYPE_POINTER);

	signals[SIG_MOUSE_CLICK] = 
		g_signal_new("mouse_clicked",
					 G_TYPE_FROM_CLASS(klass),
					 G_SIGNAL_RUN_LAST,
					 G_STRUCT_OFFSET(GntWMClass, mouse_clicked),
					 gnt_boolean_handled_accumulator, NULL,
					 gnt_closure_marshal_BOOLEAN__INT_INT_INT_POINTER,
					 G_TYPE_BOOLEAN, 4, G_TYPE_INT, G_TYPE_INT, G_TYPE_INT, G_TYPE_POINTER);

	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "window-next", window_next,
				"\033" "n", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "window-prev", window_prev,
				"\033" "p", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "window-close", window_close,
				"\033" "c", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "window-list", window_list,
				"\033" "w", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "dump-screen", dump_screen,
				"\033" "d", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "shift-left", shift_left,
				"\033" ",", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "shift-right", shift_right,
				"\033" ".", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "action-list", list_actions,
				"\033" "a", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "start-move", start_move,
				"\033" "m", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "start-resize", start_resize,
				"\033" "r", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "wm-quit", wm_quit,
				"\033" "q", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "refresh-screen", refresh_screen,
				"\033" "l", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "switch-window-n", switch_window_n,
				NULL, NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "window-scroll-down", window_scroll_down,
				"\033" GNT_KEY_CTRL_J, NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "window-scroll-up", window_scroll_up,
				"\033" GNT_KEY_CTRL_K, NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "help-for-widget", help_for_widget,
				"\033" "/", NULL);
	gnt_bindable_class_register_action(GNT_BINDABLE_CLASS(klass), "toggle-clipboard",
				toggle_clipboard, "\033" "C", NULL);

	gnt_style_read_actions(G_OBJECT_CLASS_TYPE(klass), GNT_BINDABLE_CLASS(klass));

	/* Make sure Alt+x are detected properly. */
	for (i = '0'; i <= '9'; i++) {
		char str[] = "\033X";
		str[1] = i;
		gnt_keys_add_combination(str);
	}

	GNTDEBUG;
}

/******************************************************************************
 * GntWM API
 *****************************************************************************/
GType
gnt_wm_get_gtype(void)
{
	static GType type = 0;

	if(type == 0) {
		static const GTypeInfo info = {
			sizeof(GntWMClass),
			NULL,					/* base_init		*/
			NULL,					/* base_finalize	*/
			(GClassInitFunc)gnt_wm_class_init,
			NULL,
			NULL,					/* class_data		*/
			sizeof(GntWM),
			0,						/* n_preallocs		*/
			gnt_wm_init,			/* instance_init	*/
			NULL					/* value_table		*/
		};

		type = g_type_register_static(GNT_TYPE_BINDABLE,
									  "GntWM",
									  &info, 0);
	}

	return type;
}
static void
update_window_in_list(GntWM *wm, GntWidget *wid)
{
	GntTextFormatFlags flag = 0;

	if (wm->windows == NULL)
		return;

	if (wid == wm->ordered->data)
		flag |= GNT_TEXT_FLAG_DIM;
	else if (GNT_WIDGET_IS_FLAG_SET(wid, GNT_WIDGET_URGENT))
		flag |= GNT_TEXT_FLAG_BOLD;

	gnt_tree_set_row_flags(GNT_TREE(wm->windows->tree), wid, flag);
}

static void
gnt_wm_new_window_real(GntWM *wm, GntWidget *widget)
{
	GntNode *node;
	gboolean transient = FALSE;

	if (widget->window == NULL)
		return;

	node = g_new0(GntNode, 1);
	node->me = widget;
	node->scroll = 0;

	g_hash_table_replace(wm->nodes, widget, node);

	refresh_node(widget, node, NULL);

	transient = !!GNT_WIDGET_IS_FLAG_SET(node->me, GNT_WIDGET_TRANSIENT);

#if 1
	{
		int x, y, w, h, maxx, maxy;
		gboolean shadow = TRUE;

		if (!gnt_widget_has_shadow(widget))
			shadow = FALSE;
		x = widget->priv.x;
		y = widget->priv.y;
		w = widget->priv.width;
		h = widget->priv.height;

		getmaxyx(stdscr, maxy, maxx);
		maxy -= 1;              /* room for the taskbar */
		maxy -= shadow;
		maxx -= shadow;

		x = MAX(0, x);
		y = MAX(0, y);
		if (x + w >= maxx)
			x = MAX(0, maxx - w);
		if (y + h >= maxy)
			y = MAX(0, maxy - h);

		w = MIN(w, maxx);
		h = MIN(h, maxy);
		node->window = newwin(h + shadow, w + shadow, y, x);
		copy_win(widget, node);
	}
#endif

	node->panel = new_panel(node->window);
	set_panel_userptr(node->panel, node);

	if (!transient) {
		if (node->me != wm->_list.window) {
			GntWidget *w = NULL;

			if (wm->ordered)
				w = wm->ordered->data;

			wm->list = g_list_append(wm->list, widget);

			if (wm->event_stack)
				wm->ordered = g_list_prepend(wm->ordered, widget);
			else
				wm->ordered = g_list_append(wm->ordered, widget);

			gnt_widget_set_focus(widget, TRUE);
			if (w)
				gnt_widget_set_focus(w, FALSE);
		}

		if (wm->event_stack || node->me == wm->_list.window) {
			gnt_wm_raise_window(wm, node->me);
		} else {
			bottom_panel(node->panel);     /* New windows should not grab focus */
			gnt_widget_set_urgent(node->me);
		}
	}
}

void gnt_wm_new_window(GntWM *wm, GntWidget *widget)
{
	while (widget->parent)
		widget = widget->parent;
	
	if (GNT_WIDGET_IS_FLAG_SET(widget, GNT_WIDGET_INVISIBLE) ||
			g_hash_table_lookup(wm->nodes, widget)) {
		update_screen(wm);
		return;
	}

	if (GNT_IS_BOX(widget)) {
		const char *title = GNT_BOX(widget)->title;
		GntPosition *p = NULL;
		if (title && (p = g_hash_table_lookup(wm->positions, title)) != NULL) {
			sanitize_position(widget, &p->x, &p->y);
			gnt_widget_set_position(widget, p->x, p->y);
			mvwin(widget->window, p->y, p->x);
		}
	}

	g_signal_emit(wm, signals[SIG_NEW_WIN], 0, widget);
	g_signal_emit(wm, signals[SIG_DECORATE_WIN], 0, widget);

	if (wm->windows && !GNT_WIDGET_IS_FLAG_SET(widget, GNT_WIDGET_TRANSIENT)) {
		if ((GNT_IS_BOX(widget) && GNT_BOX(widget)->title) && wm->_list.window != widget
				&& GNT_WIDGET_IS_FLAG_SET(widget, GNT_WIDGET_CAN_TAKE_FOCUS)) {
			gnt_tree_add_row_last(GNT_TREE(wm->windows->tree), widget,
					gnt_tree_create_row(GNT_TREE(wm->windows->tree), GNT_BOX(widget)->title),
					NULL);
			update_window_in_list(wm, widget);
		}
	}

	update_screen(wm);
	draw_taskbar(wm, FALSE);
}

void gnt_wm_window_decorate(GntWM *wm, GntWidget *widget)
{
	g_signal_emit(wm, signals[SIG_DECORATE_WIN], 0, widget);
}

void gnt_wm_window_close(GntWM *wm, GntWidget *widget)
{
	GntNode *node;
	int pos;

	if ((node = g_hash_table_lookup(wm->nodes, widget)) == NULL)
		return;

	g_signal_emit(wm, signals[SIG_CLOSE_WIN], 0, widget);
	g_hash_table_remove(wm->nodes, widget);

	if (wm->windows) {
		gnt_tree_remove(GNT_TREE(wm->windows->tree), widget);
	}

	pos = g_list_index(wm->list, widget);

	if (pos != -1) {
		wm->list = g_list_remove(wm->list, widget);
		wm->ordered = g_list_remove(wm->ordered, widget);

		if (wm->ordered)
			gnt_wm_raise_window(wm, wm->ordered->data);
	}

	update_screen(wm);
	draw_taskbar(wm, FALSE);
}

time_t gnt_wm_get_idle_time()
{
	return time(NULL) - last_active_time;
}

gboolean gnt_wm_process_input(GntWM *wm, const char *keys)
{
	gboolean ret = FALSE;

	keys = gnt_bindable_remap_keys(GNT_BINDABLE(wm), keys);

	idle_update = TRUE;

	if (gnt_bindable_perform_action_key(GNT_BINDABLE(wm), keys)) {
		return TRUE;
	}

	/* Do some manual checking */
	if (wm->ordered && wm->mode != GNT_KP_MODE_NORMAL) {
		int xmin = 0, ymin = 0, xmax = getmaxx(stdscr), ymax = getmaxy(stdscr) - 1;
		int x, y, w, h;
		GntWidget *widget = GNT_WIDGET(wm->ordered->data);
		int ox, oy, ow, oh;

		gnt_widget_get_position(widget, &x, &y);
		gnt_widget_get_size(widget, &w, &h);
		ox = x;	oy = y;
		ow = w;	oh = h;

		if (wm->mode == GNT_KP_MODE_MOVE) {
			if (strcmp(keys, GNT_KEY_LEFT) == 0) {
				if (x > xmin)
					x--;
			} else if (strcmp(keys, GNT_KEY_RIGHT) == 0) {
				if (x + w < xmax)
					x++;
			} else if (strcmp(keys, GNT_KEY_UP) == 0) {
				if (y > ymin)
					y--;
			} else if (strcmp(keys, GNT_KEY_DOWN) == 0) {
				if (y + h < ymax)
					y++;
			}
			if (ox != x || oy != y) {
				gnt_screen_move_widget(widget, x, y);
				window_reverse(widget, TRUE, wm);
				return TRUE;
			}
		} else if (wm->mode == GNT_KP_MODE_RESIZE) {
			if (strcmp(keys, GNT_KEY_LEFT) == 0) {
				w--;
			} else if (strcmp(keys, GNT_KEY_RIGHT) == 0) {
				if (x + w < xmax)
					w++;
			} else if (strcmp(keys, GNT_KEY_UP) == 0) {
				h--;
			} else if (strcmp(keys, GNT_KEY_DOWN) == 0) {
				if (y + h < ymax)
					h++;
			}
			if (oh != h || ow != w) {
				gnt_screen_resize_widget(widget, w, h);
				window_reverse(widget, TRUE, wm);
				return TRUE;
			}
		}
		if (strcmp(keys, "\r") == 0 || strcmp(keys, "\033") == 0) {
			window_reverse(widget, FALSE, wm);
			wm->mode = GNT_KP_MODE_NORMAL;
		}
		return TRUE;
	}

	/* Escape to close the window-list or action-list window */
	if (strcmp(keys, "\033") == 0) {
		if (wm->_list.window) {
			gnt_widget_destroy(wm->_list.window);
			return TRUE;
		}
	} else if (keys[0] == '\033' && isdigit(keys[1]) && keys[2] == '\0') {
		/* Alt+x for quick switch */
		int n = *(keys + 1) - '0';
		GList *list = NULL;

		if (n == 0)
			n = 10;

		list = g_list_append(list, GINT_TO_POINTER(n - 1));
		switch_window_n(GNT_BINDABLE(wm), list);
		g_list_free(list);
		return TRUE;
	}

	if (wm->menu)
		ret = gnt_widget_key_pressed(GNT_WIDGET(wm->menu), keys);
	else if (wm->_list.window)
		ret = gnt_widget_key_pressed(wm->_list.window, keys);
	else if (wm->ordered)
		ret = gnt_widget_key_pressed(GNT_WIDGET(wm->ordered->data), keys);
	return ret;
}

static void
gnt_wm_win_resized(GntWM *wm, GntNode *node)
{
	/*refresh_node(node->me, node, NULL);*/
}

static void
gnt_wm_win_moved(GntWM *wm, GntNode *node)
{
	refresh_node(node->me, node, NULL);
}

void gnt_wm_resize_window(GntWM *wm, GntWidget *widget, int width, int height)
{
	gboolean ret = TRUE;
	GntNode *node;
	int shadow;
	int maxx, maxy;
	
	while (widget->parent)
		widget = widget->parent;
	node = g_hash_table_lookup(wm->nodes, widget);
	if (!node)
		return;

	g_signal_emit(wm, signals[SIG_CONFIRM_RESIZE], 0, widget, &width, &height, &ret);
	if (!ret)
		return;    /* resize is not permitted */
	hide_panel(node->panel);
	gnt_widget_set_size(widget, width, height);
	gnt_widget_draw(widget);

	shadow = gnt_widget_has_shadow(widget) ? 1 : 0;
	maxx = getmaxx(stdscr) - shadow;
	maxy = getmaxy(stdscr) - 1 - shadow;
	height = MIN(height, maxy);
	width = MIN(width, maxx);
	wresize(node->window, height, width);
	replace_panel(node->panel, node->window);

	g_signal_emit(wm, signals[SIG_RESIZED], 0, node);

	show_panel(node->panel);
	update_screen(wm);
}

static void
write_gdi(gpointer key, gpointer value, gpointer data)
{
	GntPosition *p = value;
	fprintf(data, ".%s = %d;%d\n", (char *)key, p->x, p->y);
}

static gboolean
write_already(gpointer data)
{
	GntWM *wm = data;
	FILE *file;
	char *filename;

	filename = g_build_filename(g_get_home_dir(), ".gntpositions", NULL);

	file = fopen(filename, "wb");
	if (file == NULL) {
		g_printerr("GntWM: error opening file to save positions\n");
	} else {
		fprintf(file, "[positions]\n");
		g_hash_table_foreach(wm->positions, write_gdi, file);
		fclose(file);
	}

	g_free(filename);
	g_source_remove(write_timeout);
	write_timeout = 0;
	return FALSE;
}

static void
write_positions_to_file(GntWM *wm)
{
	if (write_timeout) {
		g_source_remove(write_timeout);
	}
	write_timeout = g_timeout_add(10000, write_already, wm);
}

void gnt_wm_move_window(GntWM *wm, GntWidget *widget, int x, int y)
{
	gboolean ret = TRUE;
	GntNode *node;

	while (widget->parent)
		widget = widget->parent;
	node = g_hash_table_lookup(wm->nodes, widget);
	if (!node)
		return;

	g_signal_emit(wm, signals[SIG_CONFIRM_MOVE], 0, widget, &x, &y, &ret);
	if (!ret)
		return;    /* resize is not permitted */

	gnt_widget_set_position(widget, x, y);
	move_panel(node->panel, y, x);

	g_signal_emit(wm, signals[SIG_MOVED], 0, node);
	if (gnt_style_get_bool(GNT_STYLE_REMPOS, TRUE) && GNT_IS_BOX(widget) &&
		!GNT_WIDGET_IS_FLAG_SET(widget, GNT_WIDGET_TRANSIENT)) {
		const char *title = GNT_BOX(widget)->title;
		if (title) {
			GntPosition *p = g_new0(GntPosition, 1);
			GntWidget *wid = node->me;
			p->x = wid->priv.x;
			p->y = wid->priv.y;
			g_hash_table_replace(wm->positions, g_strdup(title), p);
			write_positions_to_file(wm);
		}
	}

	update_screen(wm);
}

static void
gnt_wm_give_focus(GntWM *wm, GntWidget *widget)
{
	GntNode *node = g_hash_table_lookup(wm->nodes, widget);

	if (!node)
		return;
	
	if (widget != wm->_list.window && !GNT_IS_MENU(widget) &&
				wm->ordered->data != widget) {
		GntWidget *w = wm->ordered->data;
		wm->ordered = g_list_bring_to_front(wm->ordered, widget);
		gnt_widget_set_focus(w, FALSE);
	}

	gnt_widget_set_focus(widget, TRUE);
	GNT_WIDGET_UNSET_FLAGS(widget, GNT_WIDGET_URGENT);
	gnt_widget_draw(widget);
	top_panel(node->panel);

	if (wm->_list.window) {
		GntNode *nd = g_hash_table_lookup(wm->nodes, wm->_list.window);
		top_panel(nd->panel);
	}
	update_screen(wm);
	draw_taskbar(wm, FALSE);
}

void gnt_wm_update_window(GntWM *wm, GntWidget *widget)
{
	GntNode *node;

	while (widget->parent)
		widget = widget->parent;
	if (!GNT_IS_MENU(widget))
		gnt_box_sync_children(GNT_BOX(widget));

	node = g_hash_table_lookup(wm->nodes, widget);
	if (node == NULL) {
		gnt_wm_new_window(wm, widget);
	} else
		g_signal_emit(wm, signals[SIG_UPDATE_WIN], 0, node);

	copy_win(widget, node);
	update_screen(wm);
	draw_taskbar(wm, FALSE);
}

gboolean gnt_wm_process_click(GntWM *wm, GntMouseEvent event, int x, int y, GntWidget *widget)
{
	gboolean ret = TRUE;
	idle_update = TRUE;
	g_signal_emit(wm, signals[SIG_MOUSE_CLICK], 0, event, x, y, widget, &ret);
	return ret;
}

void gnt_wm_raise_window(GntWM *wm, GntWidget *widget)
{
	g_signal_emit(wm, signals[SIG_GIVE_FOCUS], 0, widget);
}

void gnt_wm_set_event_stack(GntWM *wm, gboolean set)
{
	wm->event_stack = set;
}