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/* Icon View/Editing and Drag-and-Drop
*
* The GtkIconView widget supports Editing and Drag-and-Drop.
* This example also demonstrates using the generic GtkCellLayout
* interface to set up cell renderers in an icon view.
*/
#include <gtk/gtk.h>
#include <string.h>
#include "demo-common.h"
static GtkWidget *window = NULL;
enum
{
COL_TEXT,
NUM_COLS
};
static void
fill_store (GtkListStore *store)
{
GtkTreeIter iter;
const gchar *text[] = { "Red", "Green", "Blue", "Yellow" };
gint i;
/* First clear the store */
gtk_list_store_clear (store);
for (i = 0; i < 4; i++)
{
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, COL_TEXT, text[i], -1);
}
}
static GtkListStore *
create_store (void)
{
GtkListStore *store;
store = gtk_list_store_new (NUM_COLS, G_TYPE_STRING);
return store;
}
static void
set_cell_color (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkTreeModel *tree_model,
GtkTreeIter *iter,
gpointer data)
{
gchar *text;
GdkColor color;
guint32 pixel = 0;
GdkPixbuf *pixbuf;
gtk_tree_model_get (tree_model, iter, COL_TEXT, &text, -1);
if (gdk_color_parse (text, &color))
pixel =
(color.red >> 8) << 24 |
(color.green >> 8) << 16 |
(color.blue >> 8) << 8;
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, 24, 24);
gdk_pixbuf_fill (pixbuf, pixel);
g_object_set (cell, "pixbuf", pixbuf, NULL);
g_object_unref (pixbuf);
}
static void
edited (GtkCellRendererText *cell,
gchar *path_string,
gchar *text,
gpointer data)
{
GtkTreeModel *model;
GtkTreeIter iter;
GtkTreePath *path;
model = gtk_icon_view_get_model (GTK_ICON_VIEW (data));
path = gtk_tree_path_new_from_string (path_string);
gtk_tree_model_get_iter (model, &iter, path);
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
COL_TEXT, text, -1);
gtk_tree_path_free (path);
}
GtkWidget *
do_iconview_edit (GtkWidget *do_widget)
{
if (!window)
{
GtkWidget *icon_view;
GtkListStore *store;
GtkCellRenderer *renderer;
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), "Editing and Drag-and-Drop");
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
store = create_store ();
fill_store (store);
icon_view = gtk_icon_view_new_with_model (GTK_TREE_MODEL (store));
g_object_unref (store);
gtk_icon_view_set_selection_mode (GTK_ICON_VIEW (icon_view),
GTK_SELECTION_SINGLE);
gtk_icon_view_set_orientation (GTK_ICON_VIEW (icon_view),
GTK_ORIENTATION_HORIZONTAL);
gtk_icon_view_set_columns (GTK_ICON_VIEW (icon_view), 2);
gtk_icon_view_set_reorderable (GTK_ICON_VIEW (icon_view), TRUE);
renderer = gtk_cell_renderer_pixbuf_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (icon_view),
renderer, TRUE);
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (icon_view),
renderer,
set_cell_color,
NULL, NULL);
renderer = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (icon_view),
renderer, TRUE);
g_object_set (renderer, "editable", TRUE, NULL);
g_signal_connect (renderer, "edited", G_CALLBACK (edited), icon_view);
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view),
renderer,
"text", COL_TEXT,
NULL);
gtk_container_add (GTK_CONTAINER (window), icon_view);
}
if (!GTK_WIDGET_VISIBLE (window))
gtk_widget_show_all (window);
else
{
gtk_widget_destroy (window);
window = NULL;
}
return window;
}
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