滚动窗口 Scrolled Windows@GTK+ 2.0 中文教程连载

GtkWidget *gtk_scrolled_window_new( GtkAdjustment *hadjustment,

GtkAdjustment *vadjustment );

void gtk_scrolled_window_set_policy( GtkScrolledWindow *scrolled_window,

GtkPolicyType      hscrollbar_policy,

GtkPolicyType      vscrollbar_policy );

void gtk_scrolled_window_add_with_viewport( GtkScrolledWindow *scrolled_window,

GtkWidget         *child);

#include <stdio.h>

#include <gtk/gtk.h>

void destroy( GtkWidget *widget,

gpointer   data )

{

gtk_main_quit ();

}

int main( int   argc,

char *argv[] )

{

static GtkWidget *window;

GtkWidget *scrolled_window;

GtkWidget *table;

GtkWidget *button;

char buffer[32];

int i, j;

gtk_init (&argc, &argv);

/* 创建一个新的对话框窗口，滚动窗口就放在这个窗口上 */

window = gtk_dialog_new ();

g_signal_connect (G_OBJECT (window), "destroy",

G_CALLBACK (destroy), NULL);

gtk_window_set_title (GTK_WINDOW (window), "GtkScrolledWindow example");

gtk_container_set_border_width (GTK_CONTAINER (window), 0);

gtk_widget_set_size_request (window, 300, 300);

/* 创建一个新的滚动窗口。 */

scrolled_window = gtk_scrolled_window_new (NULL, NULL);

gtk_container_set_border_width (GTK_CONTAINER (scrolled_window), 10);

/* 滚动条的出现方式可以是GTK_POLICY_AUTOMATIC 或GTK_POLICY_ALWAYS。

* 设为GTK_POLICY_AUTOMATIC将自动决定是否需要出现滚动条

* 而设为GTK_POLICY_ALWAYS，将一直显示一个滚动条

* 第一个是设置水平滚动条，第二个是垂直滚动条 */

gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),

GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);

/* 对话框窗口内部包含一个vbox构件 */

gtk_box_pack_start (GTK_BOX (GTK_DIALOG(window)->vbox), scrolled_window,

TRUE, TRUE, 0);

gtk_widget_show (scrolled_window);

/* 创建一个包含10×10个格子的表格 */

table = gtk_table_new (10, 10, FALSE);

/* 设置x和y方向的行间间距为10像素 */

gtk_table_set_row_spacings (GTK_TABLE (table), 10);

gtk_table_set_col_spacings (GTK_TABLE (table), 10);

/* 将表格组装到滚动窗口中 */

gtk_scrolled_window_add_with_viewport (

GTK_SCROLLED_WINDOW (scrolled_window), table);

gtk_widget_show (table);

/* 简单地在表格中添加许多开关按钮以展示滚动窗口 */

for (i = 0; i < 10; i++)

for (j = 0; j < 10; j++) {

sprintf (buffer, "button (%d,%d)/n", i, j);

button = gtk_toggle_button_new_with_label (buffer);

gtk_table_attach_defaults (GTK_TABLE (table), button,

i, i+1, j, j+1);

gtk_widget_show (button);

}

/* 在对话框的底部添加一个"close"按钮 */

button = gtk_button_new_with_label ("close");

g_signal_connect_swapped (G_OBJECT (button), "clicked",

G_CALLBACK (gtk_widget_destroy),

window);

/* 让按钮能被缺省 */

GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);

gtk_box_pack_start (GTK_BOX (GTK_DIALOG (window)->action_area), button, TRUE, TRUE, 0);

/* 将按钮固定为缺省按钮，只要按回车键就相当于点击了这个按钮 */

gtk_widget_grab_default (button);

gtk_widget_show (button);

gtk_widget_show (window);

gtk_main();

return 0;

}