gtk-demo中的例子都是在一个框架中的,如果想自己单拿出来运行,要添加主函数,大多如下:
- int
-
main(int argc, char **argv)
-
{
-
GtkWidget *window;
-
-
gtk_init(&argc, &argv);
-
window = demo-入口函数(NULL);
-
g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
-
gtk_main();
-
return 0;
-
}
例如在"editable cells"例子中源码:
- #include <gtk/gtk.h>
-
#include <string.h>
-
#include <stdlib.h>
-
-
static GtkWidget *window = NULL;
-
-
typedef struct
-
{
-
gint number;
-
gchar *product;
-
gint yummy;
-
}
-
Item;
-
-
enum
-
{
-
COLUMN_ITEM_NUMBER,
-
COLUMN_ITEM_PRODUCT,
-
COLUMN_ITEM_YUMMY,
-
NUM_ITEM_COLUMNS
-
};
-
-
enum
-
{
-
COLUMN_NUMBER_TEXT,
-
NUM_NUMBER_COLUMNS
-
};
-
-
static GArray *articles = NULL;
-
-
static void
-
add_items (void)
-
{
-
Item foo;
-
-
g_return_if_fail (articles != NULL);
-
-
foo.number = 3;
-
foo.product = g_strdup ("bottles of coke");
-
foo.yummy = 20;
-
g_array_append_vals (articles, &foo, 1);
-
-
foo.number = 5;
-
foo.product = g_strdup ("packages of noodles");
-
foo.yummy = 50;
-
g_array_append_vals (articles, &foo, 1);
-
-
foo.number = 2;
-
foo.product = g_strdup ("packages of chocolate chip cookies");
-
foo.yummy = 90;
-
g_array_append_vals (articles, &foo, 1);
-
-
foo.number = 1;
-
foo.product = g_strdup ("can vanilla ice cream");
-
foo.yummy = 60;
-
g_array_append_vals (articles, &foo, 1);
-
-
foo.number = 6;
-
foo.product = g_strdup ("eggs");
-
foo.yummy = 10;
-
g_array_append_vals (articles, &foo, 1);
-
}
-
-
static GtkTreeModel *
-
create_items_model (void)
-
{
-
gint i = 0;
-
GtkListStore *model;
-
GtkTreeIter iter;
-
-
/* create array */
-
articles = g_array_sized_new (FALSE, FALSE, sizeof (Item), 1);
-
-
add_items ();
-
-
/* create list store */
-
model = gtk_list_store_new (NUM_ITEM_COLUMNS, G_TYPE_INT, G_TYPE_STRING,
-
G_TYPE_INT, G_TYPE_BOOLEAN);
-
-
/* add items */
-
for (i = 0; i < articles->len; i++)
-
{
-
gtk_list_store_append (model, &iter);
-
-
gtk_list_store_set (model, &iter,
-
COLUMN_ITEM_NUMBER,
-
g_array_index (articles, Item, i).number,
-
COLUMN_ITEM_PRODUCT,
-
g_array_index (articles, Item, i).product,
-
COLUMN_ITEM_YUMMY,
-
g_array_index (articles, Item, i).yummy,
-
-1);
-
}
-
-
return GTK_TREE_MODEL (model);
-
}
-
-
static GtkTreeModel *
-
create_numbers_model (void)
-
{
-
#define N_NUMBERS 10
-
gint i = 0;
-
GtkListStore *model;
-
GtkTreeIter iter;
-
-
/* create list store */
-
model = gtk_list_store_new (NUM_NUMBER_COLUMNS, G_TYPE_STRING, G_TYPE_INT);
-
-
/* add numbers */
-
for (i = 0; i < N_NUMBERS; i++)
-
{
-
char str[2];
-
-
str[0] = '0' + i;
-
str[1] = '\0';
-
-
gtk_list_store_append (model, &iter);
-
-
gtk_list_store_set (model, &iter,
-
COLUMN_NUMBER_TEXT, str,
-
-1);
-
}
-
-
return GTK_TREE_MODEL (model);
-
-
#undef N_NUMBERS
-
}
-
-
static void
-
add_item (GtkWidget *button, gpointer data)
-
{
-
Item foo;
-
GtkTreeIter iter;
-
GtkTreeModel *model = (GtkTreeModel *)data;
-
-
g_return_if_fail (articles != NULL);
-
-
foo.number = 0;
-
foo.product = g_strdup ("Description here");
-
foo.yummy = 50;
-
g_array_append_vals (articles, &foo, 1);
-
-
gtk_list_store_append (GTK_LIST_STORE (model), &iter);
-
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
-
COLUMN_ITEM_NUMBER, foo.number,
-
COLUMN_ITEM_PRODUCT, foo.product,
-
COLUMN_ITEM_YUMMY, foo.yummy,
-
-1);
-
}
-
-
static void
-
remove_item (GtkWidget *widget, gpointer data)
-
{
-
GtkTreeIter iter;
-
GtkTreeView *treeview = (GtkTreeView *)data;
-
GtkTreeModel *model = gtk_tree_view_get_model (treeview);
-
GtkTreeSelection *selection = gtk_tree_view_get_selection (treeview);
-
-
if (gtk_tree_selection_get_selected (selection, NULL, &iter))
-
{
-
gint i;
-
GtkTreePath *path;
-
-
path = gtk_tree_model_get_path (model, &iter);
-
i = gtk_tree_path_get_indices (path)[0];
-
gtk_list_store_remove (GTK_LIST_STORE (model), &iter);
-
-
g_array_remove_index (articles, i);
-
-
gtk_tree_path_free (path);
-
}
-
}
-
-
static gboolean
-
separator_row (GtkTreeModel *model,
-
GtkTreeIter *iter,
-
gpointer data)
-
{
-
GtkTreePath *path;
-
gint idx;
-
-
path = gtk_tree_model_get_path (model, iter);
-
idx = gtk_tree_path_get_indices (path)[0];
-
-
gtk_tree_path_free (path);
-
-
return idx == 5;
-
}
-
-
static void
-
editing_started (GtkCellRenderer *cell,
-
GtkCellEditable *editable,
-
const gchar *path,
-
gpointer data)
-
{
-
gtk_combo_box_set_row_separator_func (GTK_COMBO_BOX (editable),
-
separator_row, NULL, NULL);
-
}
-
-
static void
-
cell_edited (GtkCellRendererText *cell,
-
const gchar *path_string,
-
const gchar *new_text,
-
gpointer data)
-
{
-
GtkTreeModel *model = (GtkTreeModel *)data;
-
GtkTreePath *path = gtk_tree_path_new_from_string (path_string);
-
GtkTreeIter iter;
-
-
gint column = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (cell), "column"));
-
-
gtk_tree_model_get_iter (model, &iter, path);
-
-
switch (column)
-
{
-
case COLUMN_ITEM_NUMBER:
-
{
-
gint i;
-
-
i = gtk_tree_path_get_indices (path)[0];
-
g_array_index (articles, Item, i).number = atoi (new_text);
-
-
gtk_list_store_set (GTK_LIST_STORE (model), &iter, column,
-
g_array_index (articles, Item, i).number, -1);
-
}
-
break;
-
-
case COLUMN_ITEM_PRODUCT:
-
{
-
gint i;
-
gchar *old_text;
-
-
gtk_tree_model_get (model, &iter, column, &old_text, -1);
-
g_free (old_text);
-
-
i = gtk_tree_path_get_indices (path)[0];
-
g_free (g_array_index (articles, Item, i).product);
-
g_array_index (articles, Item, i).product = g_strdup (new_text);
-
-
gtk_list_store_set (GTK_LIST_STORE (model), &iter, column,
-
g_array_index (articles, Item, i).product, -1);
-
}
-
break;
-
}
-
-
gtk_tree_path_free (path);
-
}
-
-
static void
-
add_columns (GtkTreeView *treeview,
-
GtkTreeModel *items_model,
-
GtkTreeModel *numbers_model)
-
{
-
GtkCellRenderer *renderer;
-
-
/* number column */
-
renderer = gtk_cell_renderer_combo_new ();
-
g_object_set (renderer,
-
"model", numbers_model,
-
"text-column", COLUMN_NUMBER_TEXT,
-
"has-entry", FALSE,
-
"editable", TRUE,
-
NULL);
-
g_signal_connect (renderer, "edited",
-
G_CALLBACK (cell_edited), items_model);
-
g_signal_connect (renderer, "editing-started",
-
G_CALLBACK (editing_started), NULL);
-
g_object_set_data (G_OBJECT (renderer), "column", GINT_TO_POINTER (COLUMN_ITEM_NUMBER));
-
-
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
-
-1, "Number", renderer,
-
"text", COLUMN_ITEM_NUMBER,
-
NULL);
-
-
/* product column */
-
renderer = gtk_cell_renderer_text_new ();
-
g_object_set (renderer,
-
"editable", TRUE,
-
NULL);
-
g_signal_connect (renderer, "edited",
-
G_CALLBACK (cell_edited), items_model);
-
g_object_set_data (G_OBJECT (renderer), "column", GINT_TO_POINTER (COLUMN_ITEM_PRODUCT));
-
-
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
-
-1, "Product", renderer,
-
"text", COLUMN_ITEM_PRODUCT,
-
NULL);
-
-
/* yummy column */
-
renderer = gtk_cell_renderer_progress_new ();
-
g_object_set_data (G_OBJECT (renderer), "column", GINT_TO_POINTER (COLUMN_ITEM_YUMMY));
-
-
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
-
-1, "Yummy", renderer,
-
"value", COLUMN_ITEM_YUMMY,
-
NULL);
-
-
-
}
-
-
GtkWidget *
-
do_editable_cells (GtkWidget *do_widget)
-
{
-
if (!window)
-
{
-
GtkWidget *vbox;
-
GtkWidget *hbox;
-
GtkWidget *sw;
-
GtkWidget *treeview;
-
GtkWidget *button;
-
GtkTreeModel *items_model;
-
GtkTreeModel *numbers_model;
-
-
/* create window, etc */
-
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-
gtk_window_set_screen (GTK_WINDOW (window),
-
gtk_widget_get_screen (do_widget));
-
gtk_window_set_title (GTK_WINDOW (window), "Shopping list");
-
gtk_container_set_border_width (GTK_CONTAINER (window), 5);
-
g_signal_connect (window, "destroy",
-
G_CALLBACK (gtk_widget_destroyed), &window);
-
-
vbox = gtk_vbox_new (FALSE, 5);
-
gtk_container_add (GTK_CONTAINER (window), vbox);
-
-
gtk_box_pack_start (GTK_BOX (vbox),
-
gtk_label_new ("Shopping list (you can edit the cells!)"),
-
FALSE, FALSE, 0);
-
-
sw = gtk_scrolled_window_new (NULL, NULL);
-
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (sw),
-
GTK_SHADOW_ETCHED_IN);
-
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
-
GTK_POLICY_AUTOMATIC,
-
GTK_POLICY_AUTOMATIC);
-
gtk_box_pack_start (GTK_BOX (vbox), sw, TRUE, TRUE, 0);
-
-
/* create models */
-
items_model = create_items_model ();
-
numbers_model = create_numbers_model ();
-
-
/* create tree view */
-
treeview = gtk_tree_view_new_with_model (items_model);
-
gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (treeview), TRUE);
-
gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview)),
-
GTK_SELECTION_SINGLE);
-
-
add_columns (GTK_TREE_VIEW (treeview), items_model, numbers_model);
-
-
g_object_unref (numbers_model);
-
g_object_unref (items_model);
-
-
gtk_container_add (GTK_CONTAINER (sw), treeview);
-
-
/* some buttons */
-
hbox = gtk_hbox_new (TRUE, 4);
-
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
-
-
button = gtk_button_new_with_label ("Add item");
-
g_signal_connect (button, "clicked",
-
G_CALLBACK (add_item), items_model);
-
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
-
-
button = gtk_button_new_with_label ("Remove item");
-
g_signal_connect (button, "clicked",
-
G_CALLBACK (remove_item), treeview);
-
gtk_box_pack_start (GTK_BOX (hbox), button, TRUE, TRUE, 0);
-
-
gtk_window_set_default_size (GTK_WINDOW (window), 320, 200);
-
}
-
-
if (!GTK_WIDGET_VISIBLE (window))
-
gtk_widget_show_all (window);
-
else
-
{
-
gtk_widget_destroy (window);
-
window = NULL;
-
}
-
-
return window;
-
}
-
例如存入t_editable_cells.c中,在代码底部插入如下代码
- int
-
main(int argc, char **argv)
-
{
-
GtkWidget *window;
-
-
gtk_init(&argc, &argv);
-
window = do_editable_cells(NULL);
-
g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
-
gtk_main();
-
return 0;
-
}
再
- gcc `pkg-config --libs --cflags gtk+-2.0` -o t_editable_cells t_editable_cells.c
即可
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