我曾尝试使用 clutter-gtk。我编写了一小段代码来创建一个 gtk 窗口，其中包含一个杂乱的阶段。我尝试在舞台上获得鼠标按钮按下事件，但什么也没有。
这是代码：
#include <clutter/clutter.h>
#include <clutter-gtk/clutter-gtk.h>
#include <glib.h>
#include <stdlib.h>
#include <stdio.h>
/*gcc 3_clutter_app_clickable_text_in_gtk.c -o 3_clutter_app_clickable_text_in_gtk `pkg-config clutter-1.0 clutter-gtk-1.0 glib --cflags --libs`*/
/*mouse clic handler*/
void on_stage_button_press( ClutterStage *stage, ClutterEvent *event, gpointer data)
{
printf("ok\n");
}
int main(int argc, char *argv[])
{
if (gtk_clutter_init(&argc, &argv) != CLUTTER_INIT_SUCCESS)
return EXIT_FAILURE;
/*create the window*/
GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size (GTK_WINDOW (window), 640, 480);
/*destroy from window close all*/
g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
/*vertical box, 0 spacing*/
GtkWidget * box = gtk_box_new(GTK_ORIENTATION_VERTICAL,0);
/*add box in the window*/
gtk_container_add(GTK_CONTAINER(window), box);
/*create the cutter widget*/
GtkWidget *clutter_widget = gtk_clutter_embed_new ();
gtk_widget_set_size_request (clutter_widget, 200, 200);
ClutterActor *stage = gtk_clutter_embed_get_stage (GTK_CLUTTER_EMBED(clutter_widget));
clutter_stage_set_use_alpha(CLUTTER_STAGE(stage), TRUE);
ClutterColor stage_color ;
GString * bg_color = g_string_new("#555753ff");
clutter_color_from_string(&stage_color,bg_color->str);
clutter_actor_set_background_color(stage, &stage_color);
/*add the cutter widget in the box expand and fill are TRUE and spacing is 0*/
gtk_box_pack_start (GTK_BOX (box), clutter_widget, TRUE, TRUE, 0);
/*create line text*/
ClutterColor text_color;
GString * fg_color = g_string_new("#00000055");
clutter_color_from_string(&text_color, fg_color->str);
ClutterActor *some_text = clutter_text_new_full("Sans 24", "Hello, world", &text_color);
clutter_actor_set_size(some_text, 256, 128);
clutter_actor_set_position(some_text, 128, 128);
clutter_actor_add_child(CLUTTER_ACTOR(stage), some_text);
clutter_text_set_editable(CLUTTER_TEXT(some_text), TRUE);
/*define clic event*/
g_signal_connect(stage, "button-press-event", G_CALLBACK(on_stage_button_press), NULL);
/* Show the window and all its widgets: */
gtk_widget_show_all (GTK_WIDGET (window));
/* Start the main loop, so we can respond to events: */
gtk_main ();
return EXIT_SUCCESS;
}
当我点击舞台时没有任何反应。我做了一些测试，我可以在主窗口上处理点击事件，在 clutter_widget 但不能直接在混乱阶段。
此代码是从http://www.openismus.com/documents/clutter_tutorial/0.9/docs/tutorial/html/sec-stage-widget.html修改的。在这篇文章中，作者将信号直接连接到舞台上，但此示例适用于 clutter 0.9，并且不再使用 clutter v > 1.0 进行编译。
关于我做错了什么的任何想法？
编辑
我已经用处理过的“按键事件”进行了一些测试。所以问题似乎来自舞台的事件面具。
有谁知道如何更改舞台的事件掩码以强制舞台对鼠标事件做出反应？