GTK<ip地址控件>

该控件共有三个文件myipaddress.c、myipaddress.h、test.c文件

********************** myipaddress.h ******************************

#ifndef __MY_IP_ADDRESS_H__

#define __MY_IP_ADDRESS_H__

#include

G_BEGIN_DECLS

#define MY_IP_ADDRESS_TYPE (my_ip_address_get_type ())

#define MY_IP_ADDRESS(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), \

MY_IP_ADDRESS_TYPE, MyIPAddress))

#define MY_IP_ADDRESS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), \

MY_IP_ADDRESS_TYPE, MyIPAddressClass))

#define IS_MY_IP_ADDRESS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \

MY_IP_ADDRESS_TYPE))

#define IS_MY_IP_ADDRESS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), \

MY_IP_ADDRESS_TYPE))

typedef struct _MyIPAddress MyIPAddress;

typedef struct _MyIPAddressClass MyIPAddressClass;

struct _MyIPAddress

{

GtkEntry entry;

};

struct _MyIPAddressClass

{

GtkEntryClass parent_class;

void (* ip_changed) (MyIPAddress *ipaddress);

};

GType my_ip_address_get_type(void);

static void my_ip_address_set_property(GObject *object,guint prop_id,const GValue *value,GParamSpec *pspec);

static void my_ip_address_class_init (MyIPAddressClass *klass);

static void my_ip_address_get_property(GObject *object,guint prop_id,GValue *value,GParamSpec *pspec);

static void my_ip_address_init (MyIPAddress *ipaddress);

static void my_ip_address_render(MyIPAddress *ipaddress);

static void my_ip_address_move_cursor(GObject *entry,GParamSpec *spec);

static gboolean my_ip_address_key_pressed(GtkEntry *entry,GdkEventKey *event);

GtkWidget *my_ip_address_new();

gchar *my_ip_address_get_address(MyIPAddress *ipaddress);

void my_ip_address_set_address(MyIPAddress *ipaddress,gint address[4]);

G_END_DECLS

#endif

********************** myipaddress.c ******************************

#include

#include "myipaddress.h"

#define MY_IP_ADDRESS_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE((obj),MY_IP_ADDRESS_TYPE,MyIPAddressPrivate))

typedef struct _MyIPAddressPrivate

{

guint address[4];

};

enum

{

CHANGED_SIGNAL,

LAST_SIGNAL

};

enum

{

PROP_0,

PROP_IP1,

PROP_IP2,

PROP_IP3,

PROP_IP4

};

typedef struct _MyIPAddressPrivate MyIPAddressPrivate;

static guint my_ip_address_signals[LAST_SIGNAL] = {0};

GType my_ip_address_get_type(void)

{

static GType entry_type = 0;

if (!entry_type)

{

static const GTypeInfo entry_info =

{

sizeof (MyIPAddressClass),

NULL,

(GClassInitFunc)my_ip_address_class_init,

NULL,

sizeof(MyIPAddress),

(GInstanceInitFunc)my_ip_address_init,

};

entry_type = g_type_register_static(GTK_TYPE_ENTRY, "MyIPAddress",&entry_info, 0);

}

return entry_type;

}

static void my_ip_address_set_property(GObject *object,guint prop_id,const GValue *value,GParamSpec *pspec)

{

MyIPAddress *ipaddress = MY_IP_ADDRESS(object);

gint address[4] = {-1, -1, -1, -1};

switch(prop_id)

{

case PROP_IP1:

address[0] = g_value_get_int(value);

my_ip_address_set_address(ipaddress,address);

break;

case PROP_IP2:

address[1] = g_value_get_int(value);

my_ip_address_set_address(ipaddress,address);

break;

case PROP_IP3:

address[2] = g_value_get_int(value);

my_ip_address_set_address(ipaddress,address);

break;

case PROP_IP4:

address[3] = g_value_get_int(value);

my_ip_address_set_address(ipaddress,address);

break;

default:

G_OBJECT_WARN_INVALID_PROPERTY_ID(object,prop_id,pspec);

break;

}

static void my_ip_address_class_init (MyIPAddressClass *klass)

{

GObjectClass *gobject_class = G_OBJECT_CLASS (klass);

gobject_class->set_property = my_ip_address_set_property;

gobject_class->get_property = my_ip_address_get_property;

g_type_class_add_private (klass, sizeof (MyIPAddressPrivate));

my_ip_address_signals[CHANGED_SIGNAL] =

g_signal_new ("ip-changed", G_TYPE_FROM_CLASS (klass),

G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,

G_STRUCT_OFFSET (MyIPAddressClass, ip_changed),

NULL, NULL,g_cclosure_marshal_VOID__VOID, G_TYPE_NONE, 0);

g_object_class_install_property (gobject_class, PROP_IP1,

g_param_spec_int ("ip-number-1",

"IP Address Number 1",

"The first IP address number",

0, 255, 0,

G_PARAM_READWRITE));

g_object_class_install_property (gobject_class, PROP_IP2,

g_param_spec_int ("ip-number-2",

"IP Address Number 2",

"The second IP address number",

0, 255, 0,

G_PARAM_READWRITE));

g_object_class_install_property (gobject_class, PROP_IP3,

g_param_spec_int ("ip-number-3",

"IP Address Number 3",

"The third IP address number",

0, 255, 0,

G_PARAM_READWRITE));

g_object_class_install_property (gobject_class, PROP_IP4,

g_param_spec_int ("ip-number-4",

"IP Address Number 1",

"The fourth IP address number",

0, 255, 0,

G_PARAM_READWRITE));

}

#define G_SIGNAL_OFFSET(struct_type,member) ((glong)((guint8*) &((struct_type*)0)->member))

void (*callback)(gpointer instance,gpointer data);

void (*callback)(gpointer instance,gboolean arg,gpointer data);

static void my_ip_address_get_property(GObject *object,guint prop_id,GValue *value,GParamSpec *pspec)

{

MyIPAddress *ipaddress = MY_IP_ADDRESS(object);

MyIPAddressPrivate *priv = MY_IP_ADDRESS_GET_PRIVATE(ipaddress);

switch(prop_id)

{

case PROP_IP1:

g_value_set_int(value,priv->address[0]);

break;

case PROP_IP2:

g_value_set_int(value,priv->address[1]);

break;

case PROP_IP3:

g_value_set_int(value,priv->address[2]);

break;

case PROP_IP4:

g_value_set_int(value,priv->address[3]);

break;

default:

G_OBJECT_WARN_INVALID_PROPERTY_ID(object,prop_id,pspec);

break;

}

static void my_ip_address_init (MyIPAddress *ipaddress)

{

MyIPAddressPrivate *priv = MY_IP_ADDRESS_GET_PRIVATE (ipaddress);

PangoFontDescription *fd;

guint i;

for (i = 0; i < 4; i++)

priv->address[i] = 0;

fd = pango_font_description_from_string ("Monospace");

gtk_widget_modify_font (GTK_WIDGET (ipaddress), fd);

my_ip_address_render (ipaddress);

pango_font_description_free (fd);

g_signal_connect (G_OBJECT (ipaddress), "key-press-event",G_CALLBACK (my_ip_address_key_pressed), NULL);

g_signal_connect (G_OBJECT (ipaddress), "notify::cursor-position",G_CALLBACK (my_ip_address_move_cursor), NULL);

}

static void my_ip_address_render(MyIPAddress *ipaddress)

{

MyIPAddressPrivate *priv = MY_IP_ADDRESS_GET_PRIVATE(ipaddress);

GString *text;

gint i;

text = g_string_new(NULL);

for(i=0; i<4; i++)

{

gchar *temp = g_strdup_printf("%3i.",priv->address[i]);

text = g_string_append(text,temp);

g_free(temp);

}

text = g_string_truncate(text,15);

gtk_entry_set_text(GTK_ENTRY(ipaddress),text->str);

g_string_free(text,TRUE);

}

static void my_ip_address_move_cursor(GObject *entry,GParamSpec *spec)

{

gint cursor = gtk_editable_get_position(GTK_EDITABLE(entry));

if(cursor <= 3)

{

gtk_editable_set_position(GTK_EDITABLE(entry),3);

}

else if(cursor <= 7)

{

gtk_editable_set_position(GTK_EDITABLE(entry),7);

}

else if(cursor <= 11)

{

gtk_editable_set_position(GTK_EDITABLE(entry),11);

}

else

gtk_editable_set_position(GTK_EDITABLE(entry),15);

}

static gboolean my_ip_address_key_pressed(GtkEntry *entry,GdkEventKey *event)

{

MyIPAddressPrivate *priv = MY_IP_ADDRESS_GET_PRIVATE(entry);

guint k = event->keyval;

gint cursor,value;

if((k >= GDK_0 && k <= GDK_9) || (k >= GDK_KP_0 && k <= GDK_KP_9))

{

cursor = floor(gtk_editable_get_position(GTK_EDITABLE(entry))/4);

value = g_ascii_digit_value(event->string[0]);

if((priv->address[cursor] == 25) && (value > 5))

return TRUE;

if(priv->address[cursor] < 26)

{

priv->address[cursor] *= 10;

priv->address[cursor] += value;

my_ip_address_render(MY_IP_ADDRESS(entry));

gtk_editable_set_position(GTK_EDITABLE(entry),(4 * cursor) + 3);

g_signal_emit_by_name((gpointer)entry,"ip-changed");

}

else if(k == GDK_Tab)

{

cursor = (gint)(floor(gtk_editable_get_position(GTK_EDITABLE(entry))/4)+1);

gtk_editable_set_position(GTK_EDITABLE(entry),(4 * (cursor%4)) + 3);

}

else if(k == GDK_BackSpace)

{

cursor = (gint)floor(gtk_editable_get_position(GTK_EDITABLE(entry))/4);

priv->address[cursor] /= 10;

my_ip_address_render(MY_IP_ADDRESS(entry));

gtk_editable_set_position(GTK_EDITABLE(entry),(4*cursor)+3);

g_signal_emit_by_name((gpointer)entry,"ip-changed");

}

else if((k == GDK_Return) || (k == GDK_KP_Enter))

gtk_widget_activate(GTK_WIDGET(entry));

return TRUE;

}

GtkWidget *my_ip_address_new()

{

return GTK_WIDGET(g_object_new(my_ip_address_get_type(),NULL));

}

char *my_ip_address_get_address(MyIPAddress *ipaddress)

{

MyIPAddressPrivate *priv = MY_IP_ADDRESS_GET_PRIVATE(ipaddress);

return g_strdup_printf("%d.%d.%d.%d",priv->address[0],priv->address[1],

priv->address[2],priv->address[3]);

}

void my_ip_address_set_address(MyIPAddress *ipaddress,gint address[4])

{

MyIPAddressPrivate *priv = MY_IP_ADDRESS_GET_PRIVATE(ipaddress);

guint i;

for(i=0; i<4; i++)

{

if(address[i] >= 0 && address[i] <= 255)

{

priv->address[i] = address[i];

}

my_ip_address_render(ipaddress);

g_signal_emit_by_name((gpointer)ipaddress,"ip-changed");

}

********************** test.c ******************************

#include

#include "myipaddress.h"

static void ip_address_changed(MyIPAddress* ipaddress);

int main(int argc,char *argv[])

{

GtkWidget *window,*ipaddress;

gtk_init(&argc,&argv);

gint address[4] = {0,0,0,0};

window=gtk_window_new(GTK_WINDOW_TOPLEVEL);

gtk_window_set_title(GTK_WINDOW(window),"MyIPAddress");

ipaddress = my_ip_address_new();

my_ip_address_set_address(MY_IP_ADDRESS(ipaddress),address);

g_signal_connect(G_OBJECT(ipaddress),"ip-changed",G_CALLBACK(ip_address_changed),NULL);

gtk_container_add(GTK_CONTAINER(window),ipaddress);

gtk_widget_show_all(window);

gtk_main();

return 0;

}

static void ip_address_changed(MyIPAddress* ipaddress)

{

gchar *address = my_ip_address_get_address(ipaddress);

g_print("%s\n",address);

g_free(address);

}

最后编辑于：2017.12.03 07:46:07

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GTK<ip地址控件>

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