win2ktrans.c

Linux下的多协议即时通讯程序源代码

		if (purple_prefs_get_bool(OPT_WINTRANS_IM_SLIDER)) {
			add_slider(win);
		}
	}

	/* If we're moving from one window to another,
	 * add the focus listeners to the new window if not already there */
	if (oldwin != NULL && oldwin != newwin) {
		if (pidgin_conv_window_get_gtkconv_count(newwin) == 0) {
			g_signal_connect(G_OBJECT(win), "focus_in_event",
				G_CALLBACK(focus_conv_win_cb), win);
			g_signal_connect(G_OBJECT(win), "focus_out_event",
				G_CALLBACK(focus_conv_win_cb), win);
		}

		/* If we've moved the last conversation, cleanup the window */
		if (pidgin_conv_window_get_gtkconv_count(oldwin) == 1)
			cleanup_conv_window(oldwin);
	}
}

static void update_convs_wintrans(GtkWidget *toggle_btn, const char *pref) {
	purple_prefs_set_bool(pref, gtk_toggle_button_get_active(
		GTK_TOGGLE_BUTTON(toggle_btn)));

	if (purple_prefs_get_bool(OPT_WINTRANS_IM_ENABLED)) {
		GList *wins;

		for (wins = pidgin_conv_windows_get_list(); wins; wins = wins->next) {
			PidginWindow *win = wins->data;
			set_conv_window_trans(NULL, win);
		}

		if (!purple_prefs_get_bool(OPT_WINTRANS_IM_SLIDER))
			remove_sliders();
	}
	else
		remove_convs_wintrans(FALSE);
}

static void purple_new_conversation(PurpleConversation *conv) {
	PidginWindow *win = pidgin_conv_get_window(PIDGIN_CONVERSATION(conv));

	/* If it is the first conversation in the window,
	 * add the sliders, and set transparency */
	if (pidgin_conv_window_get_gtkconv_count(win) == 1) {
		GtkWidget *window = win->window;

		set_conv_window_trans(NULL, win);

		g_signal_connect(G_OBJECT(window), "focus_in_event",
			G_CALLBACK(focus_conv_win_cb), window);
		g_signal_connect(G_OBJECT(window), "focus_out_event",
			G_CALLBACK(focus_conv_win_cb), window);
	}
}

static void blist_created_cb(PurpleBuddyList *purple_blist, gpointer data) {
	if (blist) {
		if (purple_prefs_get_bool(OPT_WINTRANS_BL_ENABLED)) {
			set_wintrans(blist,
				purple_prefs_get_int(OPT_WINTRANS_BL_ALPHA),
				TRUE,
				purple_prefs_get_bool(OPT_WINTRANS_BL_ONTOP));
		}

		g_signal_connect(G_OBJECT(blist), "focus_in_event",
			G_CALLBACK(focus_blist_win_cb), blist);
		g_signal_connect(G_OBJECT(blist), "focus_out_event",
			G_CALLBACK(focus_blist_win_cb), blist);
	}
}

static void alpha_change(GtkWidget *w, gpointer data) {
	GList *wins;
	int imalpha = gtk_range_get_value(GTK_RANGE(w));

	for (wins = pidgin_conv_windows_get_list(); wins; wins = wins->next) {
		PidginWindow *win = wins->data;
		set_wintrans(win->window, imalpha, TRUE,
			purple_prefs_get_bool(OPT_WINTRANS_IM_ONTOP));
	}
}

static void alpha_pref_set_int (GtkWidget *w, GdkEventFocus *e, const char *pref)
{
	int alpha = gtk_range_get_value(GTK_RANGE(w));
	purple_prefs_set_int(pref, alpha);
}

static void bl_alpha_change(GtkWidget *w, gpointer data) {
	if (blist)
		change_alpha(w, blist);
}

static void update_existing_convs() {
	GList *wins;

	for (wins = pidgin_conv_windows_get_list(); wins; wins = wins->next) {
		PidginWindow *win = wins->data;
		GtkWidget *window = win->window;

		set_conv_window_trans(NULL, win);

		g_signal_connect(G_OBJECT(window), "focus_in_event",
			G_CALLBACK(focus_conv_win_cb), window);
		g_signal_connect(G_OBJECT(window), "focus_out_event",
			G_CALLBACK(focus_conv_win_cb), window);
	}
}

/*
 *  EXPORTED FUNCTIONS
 */
static gboolean plugin_load(PurplePlugin *plugin) {
	MySetLayeredWindowAttributes = (void*) wpurple_find_and_loadproc(
		"user32.dll", "SetLayeredWindowAttributes");

	if (!MySetLayeredWindowAttributes) {
		purple_debug_error(WINTRANS_PLUGIN_ID,
			"SetLayeredWindowAttributes API not found (Required W2K+)\n");
		return FALSE;
	}

	purple_signal_connect(purple_conversations_get_handle(),
		"conversation-created", plugin,
		PURPLE_CALLBACK(purple_new_conversation), NULL);

	/* Set callback to remove window from the list, if the window is destroyed */
	purple_signal_connect(purple_conversations_get_handle(),
		"deleting-conversation", plugin,
		PURPLE_CALLBACK(purple_conversation_delete), NULL);

	purple_signal_connect(pidgin_conversations_get_handle(),
		"conversation-dragging", plugin,
		PURPLE_CALLBACK(set_conv_window_trans), NULL);

	update_existing_convs();

	if (blist)
		blist_created_cb(NULL, NULL);
	else
		purple_signal_connect(pidgin_blist_get_handle(),
			"gtkblist-created", plugin,
			PURPLE_CALLBACK(blist_created_cb), NULL);


	return TRUE;
}

static gboolean plugin_unload(PurplePlugin *plugin) {
	purple_debug_info(WINTRANS_PLUGIN_ID, "Unloading win2ktrans plugin\n");

	remove_convs_wintrans(TRUE);

	if (blist) {
		if (purple_prefs_get_bool(OPT_WINTRANS_BL_ENABLED))
			set_wintrans(blist, 0, FALSE, FALSE);

		/* Remove the focus cbs */
		g_signal_handlers_disconnect_by_func(G_OBJECT(blist),
			G_CALLBACK(focus_blist_win_cb), blist);
	}

	return TRUE;
}

static GtkWidget *get_config_frame(PurplePlugin *plugin) {
	GtkWidget *ret;
	GtkWidget *imtransbox, *bltransbox;
	GtkWidget *hbox;
	GtkWidget *label, *slider;
	GtkWidget *button;
	GtkWidget *trans_box;

	ret = gtk_vbox_new(FALSE, 18);
	gtk_container_set_border_width(GTK_CONTAINER (ret), 12);

	/* IM Convo trans options */
	imtransbox = pidgin_make_frame(ret, _("IM Conversation Windows"));
	button = wpurple_button(_("_IM window transparency"),
		OPT_WINTRANS_IM_ENABLED, imtransbox);
	g_signal_connect(GTK_OBJECT(button), "clicked",
		GTK_SIGNAL_FUNC(update_convs_wintrans),
		(gpointer) OPT_WINTRANS_IM_ENABLED);

	trans_box = gtk_vbox_new(FALSE, 18);
	if (!purple_prefs_get_bool(OPT_WINTRANS_IM_ENABLED))
		gtk_widget_set_sensitive(GTK_WIDGET(trans_box), FALSE);
	gtk_widget_show(trans_box);

	g_signal_connect(GTK_OBJECT(button), "clicked",
		GTK_SIGNAL_FUNC(pidgin_toggle_sensitive), trans_box);

	button = wpurple_button(_("_Show slider bar in IM window"),
		OPT_WINTRANS_IM_SLIDER, trans_box);
	g_signal_connect(GTK_OBJECT(button), "clicked",
		GTK_SIGNAL_FUNC(update_convs_wintrans),
		(gpointer) OPT_WINTRANS_IM_SLIDER);

	button = pidgin_prefs_checkbox(
		_("Remove IM window transparency on focus"),
		OPT_WINTRANS_IM_ONFOCUS, trans_box);

	button = wpurple_button(_("Always on top"), OPT_WINTRANS_IM_ONTOP,
		trans_box);
	g_signal_connect(GTK_OBJECT(button), "clicked",
		GTK_SIGNAL_FUNC(update_convs_wintrans),
		(gpointer) OPT_WINTRANS_IM_ONTOP);

	gtk_box_pack_start(GTK_BOX(imtransbox), trans_box, FALSE, FALSE, 5);

	/* IM transparency slider */
	hbox = gtk_hbox_new(FALSE, 5);

	label = gtk_label_new(_("Opacity:"));
	gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 5);

	slider = gtk_hscale_new_with_range(50, 255, 1);
	gtk_range_set_value(GTK_RANGE(slider),
		purple_prefs_get_int(OPT_WINTRANS_IM_ALPHA));
	gtk_widget_set_usize(GTK_WIDGET(slider), 200, -1);

	g_signal_connect(GTK_OBJECT(slider), "value-changed",
		GTK_SIGNAL_FUNC(alpha_change), NULL);
	g_signal_connect(GTK_OBJECT(slider), "focus-out-event",
		GTK_SIGNAL_FUNC(alpha_pref_set_int),
		(gpointer) OPT_WINTRANS_IM_ALPHA);

	gtk_box_pack_start(GTK_BOX(hbox), slider, FALSE, TRUE, 5);

	gtk_widget_show_all(hbox);

	gtk_box_pack_start(GTK_BOX(trans_box), hbox, FALSE, FALSE, 5);

	/* Buddy List trans options */
	bltransbox = pidgin_make_frame (ret, _("Buddy List Window"));
	button = wpurple_button(_("_Buddy List window transparency"),
		OPT_WINTRANS_BL_ENABLED, bltransbox);
	g_signal_connect(GTK_OBJECT(button), "clicked",
		GTK_SIGNAL_FUNC(set_blist_trans),
		(gpointer) OPT_WINTRANS_BL_ENABLED);

	trans_box = gtk_vbox_new(FALSE, 18);
	if (!purple_prefs_get_bool(OPT_WINTRANS_BL_ENABLED))
		gtk_widget_set_sensitive(GTK_WIDGET(trans_box), FALSE);
	gtk_widget_show(trans_box);
	g_signal_connect(GTK_OBJECT(button), "clicked",
		GTK_SIGNAL_FUNC(pidgin_toggle_sensitive), trans_box);
	button = pidgin_prefs_checkbox(
		_("Remove Buddy List window transparency on focus"),
		OPT_WINTRANS_BL_ONFOCUS, trans_box);
	button = wpurple_button(_("Always on top"), OPT_WINTRANS_BL_ONTOP,
		trans_box);
	g_signal_connect(GTK_OBJECT(button), "clicked",
		GTK_SIGNAL_FUNC(set_blist_trans),
		(gpointer) OPT_WINTRANS_BL_ONTOP);
	gtk_box_pack_start(GTK_BOX(bltransbox), trans_box, FALSE, FALSE, 5);

	/* IM transparency slider */
	hbox = gtk_hbox_new(FALSE, 5);

	label = gtk_label_new(_("Opacity:"));
	gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 5);

	slider = gtk_hscale_new_with_range(50, 255, 1);
	gtk_range_set_value(GTK_RANGE(slider),
		purple_prefs_get_int(OPT_WINTRANS_BL_ALPHA));

	gtk_widget_set_usize(GTK_WIDGET(slider), 200, -1);

	g_signal_connect(GTK_OBJECT(slider), "value-changed",
		GTK_SIGNAL_FUNC(bl_alpha_change), NULL);
	g_signal_connect(GTK_OBJECT(slider), "focus-out-event",
		GTK_SIGNAL_FUNC(alpha_pref_set_int),
		(gpointer) OPT_WINTRANS_BL_ALPHA);

	gtk_box_pack_start(GTK_BOX(hbox), slider, FALSE, TRUE, 5);

	gtk_widget_show_all(hbox);

	gtk_box_pack_start(GTK_BOX(trans_box), hbox, FALSE, FALSE, 5);

	gtk_widget_show_all(ret);
	return ret;
}

static PidginPluginUiInfo ui_info =
{
	get_config_frame,
	0, /* page_num (Reserved) */

	/* padding */
	NULL,
	NULL,
	NULL,
	NULL
};

static PurplePluginInfo info =
{
	PURPLE_PLUGIN_MAGIC,
	PURPLE_MAJOR_VERSION,
	PURPLE_MINOR_VERSION,
	PURPLE_PLUGIN_STANDARD,		/**< type           */
	PIDGIN_PLUGIN_TYPE,		/**< ui_requirement */
	0,				/**< flags          */
	NULL,				/**< dependencies   */
	PURPLE_PRIORITY_DEFAULT,		/**< priority       */
	WINTRANS_PLUGIN_ID,		/**< id             */
	N_("Transparency"),		/**< name           */
	VERSION,			/**< version        */
					/**  summary        */
	N_("Variable Transparency for the buddy list and conversations."),
					/**  description    */
	N_("This plugin enables variable alpha transparency on conversation windows and the buddy list.\n\n"
	"* Note: This plugin requires Win2000 or greater."),
	"Herman Bloggs <[e-mail]>",	/**< author         */
	PURPLE_WEBSITE,			/**< homepage       */
	plugin_load,			/**< load           */
	plugin_unload,			/**< unload         */
	NULL,				/**< destroy        */
	&ui_info,			/**< ui_info        */
	NULL,				/**< extra_info     */
	NULL,				/**< prefs_info     */
	NULL,				/**< actions        */

	/* padding */
	NULL,
	NULL,
	NULL,
	NULL
};

static void
init_plugin(PurplePlugin *plugin)
{
	purple_prefs_add_none("/plugins/gtk/win32");
	purple_prefs_add_none("/plugins/gtk/win32/wintrans");
	purple_prefs_add_bool(OPT_WINTRANS_IM_ENABLED, FALSE);
	purple_prefs_add_int(OPT_WINTRANS_IM_ALPHA, 255);
	purple_prefs_add_bool(OPT_WINTRANS_IM_SLIDER, FALSE);
	purple_prefs_add_bool(OPT_WINTRANS_IM_ONFOCUS, FALSE);
	purple_prefs_add_bool(OPT_WINTRANS_IM_ONTOP, FALSE);
	purple_prefs_add_bool(OPT_WINTRANS_BL_ENABLED, FALSE);
	purple_prefs_add_int(OPT_WINTRANS_BL_ALPHA, 255);
	purple_prefs_add_bool(OPT_WINTRANS_BL_ONFOCUS, FALSE);
	purple_prefs_add_bool(OPT_WINTRANS_BL_ONTOP, FALSE);
}

PURPLE_INIT_PLUGIN(wintrans, init_plugin, info)