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gtk/demos/gtk-demo/tree_store.c
Matthias Clasen 609e04ddcf gtk-demo: Cosmetic changes 
Clean up the code of many examples in minor ways, fix some memory
leaks, and avoid the use of dialogs where a regular toplevel works
just as well.
2015-06-28 17:41:35 -04:00

447 lines
17 KiB
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/* Tree View/Tree Store
*
* The GtkTreeStore is used to store data in tree form, to be
* used later on by a GtkTreeView to display it. This demo builds
* a simple GtkTreeStore and displays it. If you're new to the
* GtkTreeView widgets and associates, look into the GtkListStore
* example first.
*
*/
#include <gtk/gtk.h>
/* TreeItem structure */
typedef struct _TreeItem TreeItem;
struct _TreeItem
{
const gchar *label;
gboolean alex;
gboolean havoc;
gboolean tim;
gboolean owen;
gboolean dave;
gboolean world_holiday; /* shared by the European hackers */
TreeItem *children;
};
/* columns */
enum
{
HOLIDAY_NAME_COLUMN = 0,
ALEX_COLUMN,
HAVOC_COLUMN,
TIM_COLUMN,
OWEN_COLUMN,
DAVE_COLUMN,
VISIBLE_COLUMN,
WORLD_COLUMN,
NUM_COLUMNS
};
/* tree data */
static TreeItem january[] =
{
{"New Years Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
{"Presidential Inauguration", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
{"Martin Luther King Jr. day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
{ NULL }
};
static TreeItem february[] =
{
{ "Presidents' Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
{ "Groundhog Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Valentine's Day", FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, NULL },
{ NULL }
};
static TreeItem march[] =
{
{ "National Tree Planting Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "St Patrick's Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
{ NULL }
};
static TreeItem april[] =
{
{ "April Fools' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
{ "Army Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Earth Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
{ "Administrative Professionals' Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ NULL }
};
static TreeItem may[] =
{
{ "Nurses' Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "National Day of Prayer", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Mothers' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
{ "Armed Forces Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Memorial Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
{ NULL }
};
static TreeItem june[] =
{
{ "June Fathers' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
{ "Juneteenth (Liberation of Slaves)", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Flag Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
{ NULL }
};
static TreeItem july[] =
{
{ "Parents' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
{ "Independence Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
{ NULL }
};
static TreeItem august[] =
{
{ "Air Force Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Coast Guard Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Friendship Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ NULL }
};
static TreeItem september[] =
{
{ "Grandparents' Day", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
{ "Citizenship Day or Constitution Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Labor Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
{ NULL }
};
static TreeItem october[] =
{
{ "National Children's Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Bosses' Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Sweetest Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Mother-in-Law's Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Navy Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Columbus Day", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
{ "Halloween", FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, NULL },
{ NULL }
};
static TreeItem november[] =
{
{ "Marine Corps Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Veterans' Day", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
{ "Thanksgiving", FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, NULL },
{ NULL }
};
static TreeItem december[] =
{
{ "Pearl Harbor Remembrance Day", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ "Christmas", TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, NULL },
{ "Kwanzaa", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, NULL },
{ NULL }
};
static TreeItem toplevel[] =
{
{"January", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, january},
{"February", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, february},
{"March", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, march},
{"April", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, april},
{"May", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, may},
{"June", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, june},
{"July", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, july},
{"August", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, august},
{"September", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, september},
{"October", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, october},
{"November", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, november},
{"December", FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, december},
{NULL}
};
static GtkTreeModel *
create_model (void)
{
GtkTreeStore *model;
GtkTreeIter iter;
TreeItem *month = toplevel;
/* create tree store */
model = gtk_tree_store_new (NUM_COLUMNS,
G_TYPE_STRING,
G_TYPE_BOOLEAN,
G_TYPE_BOOLEAN,
G_TYPE_BOOLEAN,
G_TYPE_BOOLEAN,
G_TYPE_BOOLEAN,
G_TYPE_BOOLEAN,
G_TYPE_BOOLEAN);
/* add data to the tree store */
while (month->label)
{
TreeItem *holiday = month->children;
gtk_tree_store_append (model, &iter, NULL);
gtk_tree_store_set (model, &iter,
HOLIDAY_NAME_COLUMN, month->label,
ALEX_COLUMN, FALSE,
HAVOC_COLUMN, FALSE,
TIM_COLUMN, FALSE,
OWEN_COLUMN, FALSE,
DAVE_COLUMN, FALSE,
VISIBLE_COLUMN, FALSE,
WORLD_COLUMN, FALSE,
-1);
/* add children */
while (holiday->label)
{
GtkTreeIter child_iter;
gtk_tree_store_append (model, &child_iter, &iter);
gtk_tree_store_set (model, &child_iter,
HOLIDAY_NAME_COLUMN, holiday->label,
ALEX_COLUMN, holiday->alex,
HAVOC_COLUMN, holiday->havoc,
TIM_COLUMN, holiday->tim,
OWEN_COLUMN, holiday->owen,
DAVE_COLUMN, holiday->dave,
VISIBLE_COLUMN, TRUE,
WORLD_COLUMN, holiday->world_holiday,
-1);
holiday++;
}
month++;
}
return GTK_TREE_MODEL (model);
}
static void
item_toggled (GtkCellRendererToggle *cell,
gchar *path_str,
gpointer data)
{
GtkTreeModel *model = (GtkTreeModel *)data;
GtkTreePath *path = gtk_tree_path_new_from_string (path_str);
GtkTreeIter iter;
gboolean toggle_item;
gint *column;
column = g_object_get_data (G_OBJECT (cell), "column");
/* get toggled iter */
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, column, &toggle_item, -1);
/* do something with the value */
toggle_item ^= 1;
/* set new value */
gtk_tree_store_set (GTK_TREE_STORE (model), &iter, column,
toggle_item, -1);
/* clean up */
gtk_tree_path_free (path);
}
static void
add_columns (GtkTreeView *treeview)
{
gint col_offset;
GtkCellRenderer *renderer;
GtkTreeViewColumn *column;
GtkTreeModel *model = gtk_tree_view_get_model (treeview);
/* column for holiday names */
renderer = gtk_cell_renderer_text_new ();
g_object_set (renderer, "xalign", 0.0, NULL);
col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
-1, "Holiday",
renderer, "text",
HOLIDAY_NAME_COLUMN,
NULL);
column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
/* alex column */
renderer = gtk_cell_renderer_toggle_new ();
g_object_set (renderer, "xalign", 0.0, NULL);
g_object_set_data (G_OBJECT (renderer), "column", (gint *)ALEX_COLUMN);
g_signal_connect (renderer, "toggled", G_CALLBACK (item_toggled), model);
col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
-1, "Alex",
renderer,
"active",
ALEX_COLUMN,
"visible",
VISIBLE_COLUMN,
"activatable",
WORLD_COLUMN, NULL);
column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
GTK_TREE_VIEW_COLUMN_FIXED);
gtk_tree_view_column_set_fixed_width (GTK_TREE_VIEW_COLUMN (column), 50);
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
/* havoc column */
renderer = gtk_cell_renderer_toggle_new ();
g_object_set (renderer, "xalign", 0.0, NULL);
g_object_set_data (G_OBJECT (renderer), "column", (gint *)HAVOC_COLUMN);
g_signal_connect (renderer, "toggled", G_CALLBACK (item_toggled), model);
col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
-1, "Havoc",
renderer,
"active",
HAVOC_COLUMN,
"visible",
VISIBLE_COLUMN,
NULL);
column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
GTK_TREE_VIEW_COLUMN_FIXED);
gtk_tree_view_column_set_fixed_width (GTK_TREE_VIEW_COLUMN (column), 50);
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
/* tim column */
renderer = gtk_cell_renderer_toggle_new ();
g_object_set (renderer, "xalign", 0.0, NULL);
g_object_set_data (G_OBJECT (renderer), "column", (gint *)TIM_COLUMN);
g_signal_connect (renderer, "toggled", G_CALLBACK (item_toggled), model);
col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
-1, "Tim",
renderer,
"active",
TIM_COLUMN,
"visible",
VISIBLE_COLUMN,
"activatable",
WORLD_COLUMN, NULL);
column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
GTK_TREE_VIEW_COLUMN_FIXED);
gtk_tree_view_column_set_fixed_width (GTK_TREE_VIEW_COLUMN (column), 50);
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
/* owen column */
renderer = gtk_cell_renderer_toggle_new ();
g_object_set (renderer, "xalign", 0.0, NULL);
g_object_set_data (G_OBJECT (renderer), "column", (gint *)OWEN_COLUMN);
g_signal_connect (renderer, "toggled", G_CALLBACK (item_toggled), model);
col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
-1, "Owen",
renderer,
"active",
OWEN_COLUMN,
"visible",
VISIBLE_COLUMN,
NULL);
column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
GTK_TREE_VIEW_COLUMN_FIXED);
gtk_tree_view_column_set_fixed_width (GTK_TREE_VIEW_COLUMN (column), 50);
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
/* dave column */
renderer = gtk_cell_renderer_toggle_new ();
g_object_set (renderer, "xalign", 0.0, NULL);
g_object_set_data (G_OBJECT (renderer), "column", (gint *)DAVE_COLUMN);
g_signal_connect (renderer, "toggled", G_CALLBACK (item_toggled), model);
col_offset = gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (treeview),
-1, "Dave",
renderer,
"active",
DAVE_COLUMN,
"visible",
VISIBLE_COLUMN,
NULL);
column = gtk_tree_view_get_column (GTK_TREE_VIEW (treeview), col_offset - 1);
gtk_tree_view_column_set_sizing (GTK_TREE_VIEW_COLUMN (column),
GTK_TREE_VIEW_COLUMN_FIXED);
gtk_tree_view_column_set_fixed_width (GTK_TREE_VIEW_COLUMN (column), 50);
gtk_tree_view_column_set_clickable (GTK_TREE_VIEW_COLUMN (column), TRUE);
}
GtkWidget *
do_tree_store (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
if (!window)
{
GtkWidget *vbox;
GtkWidget *sw;
GtkWidget *treeview;
GtkTreeModel *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), "Tree Store");
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 8);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
gtk_container_add (GTK_CONTAINER (window), vbox);
gtk_box_pack_start (GTK_BOX (vbox),
gtk_label_new ("Jonathan's Holiday Card Planning Sheet"),
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 model */
model = create_model ();
/* create tree view */
treeview = gtk_tree_view_new_with_model (model);
g_object_unref (model);
gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview)),
GTK_SELECTION_MULTIPLE);
add_columns (GTK_TREE_VIEW (treeview));
gtk_container_add (GTK_CONTAINER (sw), treeview);
/* expand all rows after the treeview widget has been realized */
g_signal_connect (treeview, "realize",
G_CALLBACK (gtk_tree_view_expand_all), NULL);
gtk_window_set_default_size (GTK_WINDOW (window), 650, 400);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show_all (window);
else
gtk_widget_destroy (window);
return window;
}
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