学步园

源码：<br /> #include <gdk/gdkcursor.h><br /> #include <gtk/gtk.h></p> <p>#define TEST_W 100<br /> #define TEST_H 80</p> <p>gboolean drag = FALSE; // 只在左键按下时拖动窗体<br /> gboolean hide = FALSE; // 只在左键按下时拖动窗体<br /> int nX = 0;<br /> int nY = 0;<br /> GtkWidget *window;</p> <p>static gint button_press_event(GtkWidget * widget,GdkEventButton * event, gpointer data)</p> <p>{</p> <p> if (event->button == 1) // 判断是否左键按下<br /> {<br /> drag = TRUE;<br /> nX = event->x; // 取得鼠标相对于窗口的位置<br /> nY = event->y;</p> <p> }<br /> // gdk_window_move_resize (widget->window, x, y, width, height);<br /> //gdk_window_move_resize (widget->window, 0, 0, 10, 80);<br /> //gtk_widget_set_usize(window,50,TEST_H);// gtk_widget_set_size_request(window, 5, TEST_H);<br /> return TRUE;</p> <p>}<br /> static gint button_release_event(GtkWidget * widget, GdkEventButton * event,gpointer data) // 鼠标抬起事件<br /> {</p> <p> //gdk_window_move_resize (widget->window, 0, 0, 100, 80);<br /> //gtk_widget_set_usize(window,10, TEST_H);//gtk_widget_set_size_request(window, TEST_W, TEST_H);<br /> if (event->button == 1)</p> <p> drag = FALSE;</p> <p> return TRUE;</p> <p>}<br /> static gint motion_notify_event(GtkWidget * widget, GdkEventButton * event,gpointer data)//鼠标移动事件<br /> {<br /> gint x, y;<br /> GtkWidget *window = (GtkWidget *) data;<br /> gtk_window_get_position((GtkWindow *) window, &x, &y); // 取窗体绝对坐标</p> <p> gdk_window_move_resize (widget->window, x, y, 100, 80);<br /> if (drag)<br /> {</p> <p> gtk_window_move((GtkWindow *) window, x + event->x - nX, y + event->y - nY);// 移动窗体<br /> g_print("x=%d;y=%d\n",x,y);</p> <p> }</p> <p> return TRUE;</p> <p>}<br /> gboolean leave_event (GtkWidget *widget,GdkEventCrossing *event,gpointer data)//鼠标离开事件<br /> {<br /> gint x, y;<br /> GtkWidget *window = (GtkWidget *) data;<br /> gtk_window_get_position((GtkWindow *) window, &x, &y);// 取窗体绝对坐标<br /> if(x<=5)</p> <p> gdk_window_move_resize (widget->window, 0, y, 5, 80);</p> <p> return TRUE;<br /> }<br /> int main(int argc, char **argv)<br /> {</p> <p> gtk_init(&argc, &argv);<br /> window = gtk_window_new(GTK_WINDOW_TOPLEVEL);<br /> //gtk_window_set_decorated(GTK_WINDOW(window), FALSE); // 去掉边框<br /> //gtk_widget_set_size_request(window, TEST_W, TEST_H);//设置窗体最小尺寸<br /> //gtk_window_set_default_size(window,TEST_W,TEST_H);<br /> //gtk_widget_set_usize(window,TEST_W, TEST_H);//设置窗体大小<br /> //gtk_window_move((GtkWindow *) window, -20, -10);<br /> gtk_widget_set_events(window, // 设置窗体获取鼠标事件<br /> //window.allocation</p> <p> GDK_EXPOSURE_MASK | GDK_LEAVE_NOTIFY_MASK</p> <p> | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK</p> <p> | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK);</p> <p> gtk_signal_connect(GTK_OBJECT(window), "button_press_event",</p> <p> (GtkSignalFunc) button_press_event, window); // 加入事件回调</p> <p> gtk_signal_connect(GTK_OBJECT(window), "motion_notify_event",</p> <p> (GtkSignalFunc) motion_notify_event, window);</p> <p> gtk_signal_connect(GTK_OBJECT(window), "button_release_event",</p> <p> (GtkSignalFunc) button_release_event, window);<br /> g_signal_connect (GTK_OBJECT (window), "leave_notify_event",</p> <p> (GtkSignalFunc) leave_event, window);</p> <p> gtk_widget_show_all(window);<br /> gtk_main();<br /> return TRUE;</p> <p>}