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Learning_GTK4_tree/tests/testtreeedit.c

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/* testtreeedit.c
* Copyright (C) 2001 Red Hat, Inc
* Author: Jonathan Blandford
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
typedef struct {
const char *string;
gboolean is_editable;
gboolean is_sensitive;
int progress;
} ListEntry;
enum {
STRING_COLUMN,
IS_EDITABLE_COLUMN,
IS_SENSITIVE_COLUMN,
ICON_NAME_COLUMN,
LAST_ICON_NAME_COLUMN,
PROGRESS_COLUMN,
NUM_COLUMNS
};
static ListEntry model_strings[] =
{
{"A simple string", TRUE, TRUE, 0 },
{"Another string!", TRUE, TRUE, 10 },
{"", TRUE, TRUE, 0 },
{"Guess what, a third string. This one can't be edited", FALSE, TRUE, 47 },
{"And then a fourth string. Neither can this", FALSE, TRUE, 48 },
{"Multiline\nFun!", TRUE, FALSE, 75 },
{ NULL }
};
static GtkTreeModel *
create_model (void)
{
GtkTreeStore *model;
GtkTreeIter iter;
int i;
model = gtk_tree_store_new (NUM_COLUMNS,
G_TYPE_STRING,
G_TYPE_BOOLEAN,
G_TYPE_BOOLEAN,
G_TYPE_STRING,
G_TYPE_STRING,
G_TYPE_INT);
for (i = 0; model_strings[i].string != NULL; i++)
{
gtk_tree_store_append (model, &iter, NULL);
gtk_tree_store_set (model, &iter,
STRING_COLUMN, model_strings[i].string,
IS_EDITABLE_COLUMN, model_strings[i].is_editable,
IS_SENSITIVE_COLUMN, model_strings[i].is_sensitive,
ICON_NAME_COLUMN, "document-new",
LAST_ICON_NAME_COLUMN, "edit-delete",
PROGRESS_COLUMN, model_strings[i].progress,
-1);
}
return GTK_TREE_MODEL (model);
}
static void
editable_toggled (GtkCellRendererToggle *cell,
char *path_string,
gpointer data)
{
GtkTreeModel *model = GTK_TREE_MODEL (data);
GtkTreeIter iter;
GtkTreePath *path = gtk_tree_path_new_from_string (path_string);
gboolean value;
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, IS_EDITABLE_COLUMN, &value, -1);
value = !value;
gtk_tree_store_set (GTK_TREE_STORE (model), &iter, IS_EDITABLE_COLUMN, value, -1);
gtk_tree_path_free (path);
}
static void
sensitive_toggled (GtkCellRendererToggle *cell,
char *path_string,
gpointer data)
{
GtkTreeModel *model = GTK_TREE_MODEL (data);
GtkTreeIter iter;
GtkTreePath *path = gtk_tree_path_new_from_string (path_string);
gboolean value;
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, IS_SENSITIVE_COLUMN, &value, -1);
value = !value;
gtk_tree_store_set (GTK_TREE_STORE (model), &iter, IS_SENSITIVE_COLUMN, value, -1);
gtk_tree_path_free (path);
}
static void
edited (GtkCellRendererText *cell,
char *path_string,
char *new_text,
gpointer data)
{
GtkTreeModel *model = GTK_TREE_MODEL (data);
GtkTreeIter iter;
GtkTreePath *path = gtk_tree_path_new_from_string (path_string);
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_store_set (GTK_TREE_STORE (model), &iter, STRING_COLUMN, new_text, -1);
gtk_tree_path_free (path);
}
static void
pressed_cb (GtkGesture *gesture,
int n_press,
double x,
double y,
GtkWidget *widget)
{
/* Deselect if people click outside any row. */
if (!gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget), x, y, NULL, NULL, NULL, NULL))
gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (widget)));
}
typedef struct {
GtkCellArea *area;
GtkCellRenderer *renderer;
} CallbackData;
static void
align_cell_toggled (GtkToggleButton *toggle,
CallbackData *data)
{
gboolean active = gtk_toggle_button_get_active (toggle);
gtk_cell_area_cell_set (data->area, data->renderer, "align", active, NULL);
}
static void
expand_cell_toggled (GtkToggleButton *toggle,
CallbackData *data)
{
gboolean active = gtk_toggle_button_get_active (toggle);
gtk_cell_area_cell_set (data->area, data->renderer, "expand", active, NULL);
}
static void
fixed_cell_toggled (GtkToggleButton *toggle,
CallbackData *data)
{
gboolean active = gtk_toggle_button_get_active (toggle);
gtk_cell_area_cell_set (data->area, data->renderer, "fixed-size", active, NULL);
}
enum {
CNTL_EXPAND,
CNTL_ALIGN,
CNTL_FIXED
};
static void
create_control (GtkWidget *box, int number, int cntl, CallbackData *data)
{
GtkWidget *checkbutton;
GCallback callback = NULL;
char *name = NULL;
switch (cntl)
{
case CNTL_EXPAND:
name = g_strdup_printf ("Expand Cell #%d", number);
callback = G_CALLBACK (expand_cell_toggled);
break;
case CNTL_ALIGN:
name = g_strdup_printf ("Align Cell #%d", number);
callback = G_CALLBACK (align_cell_toggled);
break;
case CNTL_FIXED:
name = g_strdup_printf ("Fix size Cell #%d", number);
callback = G_CALLBACK (fixed_cell_toggled);
break;
default:
g_assert_not_reached ();
}
checkbutton = gtk_check_button_new_with_label (name);
gtk_check_button_set_active (GTK_CHECK_BUTTON (checkbutton), cntl == CNTL_FIXED);
gtk_box_append (GTK_BOX (box), checkbutton);
g_signal_connect (G_OBJECT (checkbutton), "toggled", callback, data);
g_free (name);
}
static void
quit_cb (GtkWidget *widget,
gpointer data)
{
gboolean *done = data;
*done = TRUE;
g_main_context_wakeup (NULL);
}
int
main (int argc, char **argv)
{
GtkWidget *window;
GtkWidget *scrolled_window;
GtkWidget *tree_view;
GtkWidget *vbox, *hbox, *cntl_vbox;
GtkTreeModel *tree_model;
GtkCellRenderer *renderer;
GtkTreeViewColumn *column;
GtkCellArea *area;
CallbackData callback[4];
GtkGesture *gesture;
gboolean done = FALSE;
gtk_init ();
if (g_getenv ("RTL"))
gtk_widget_set_default_direction (GTK_TEXT_DIR_RTL);
window = gtk_window_new ();
gtk_window_set_title (GTK_WINDOW (window), "GtkTreeView editing sample");
g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_window_set_child (GTK_WINDOW (window), vbox);
scrolled_window = gtk_scrolled_window_new ();
gtk_scrolled_window_set_has_frame (GTK_SCROLLED_WINDOW (scrolled_window), TRUE);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_widget_set_vexpand (scrolled_window, TRUE);
gtk_box_append (GTK_BOX (vbox), scrolled_window);
tree_model = create_model ();
tree_view = gtk_tree_view_new_with_model (tree_model);
gesture = gtk_gesture_click_new ();
g_signal_connect (gesture, "pressed", G_CALLBACK (pressed_cb), tree_view);
gtk_widget_add_controller (tree_view, GTK_EVENT_CONTROLLER (gesture));
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view), TRUE);
column = gtk_tree_view_column_new ();
gtk_tree_view_column_set_title (column, "String");
area = gtk_cell_layout_get_area (GTK_CELL_LAYOUT (column));
renderer = gtk_cell_renderer_pixbuf_new ();
gtk_tree_view_column_pack_start (column, renderer, FALSE);
gtk_tree_view_column_set_attributes (column, renderer,
"icon-name", ICON_NAME_COLUMN,
"sensitive", IS_SENSITIVE_COLUMN,
NULL);
callback[0].area = area;
callback[0].renderer = renderer;
renderer = gtk_cell_renderer_text_new ();
gtk_tree_view_column_pack_start (column, renderer, FALSE);
gtk_tree_view_column_set_attributes (column, renderer,
"text", STRING_COLUMN,
"editable", IS_EDITABLE_COLUMN,
"sensitive", IS_SENSITIVE_COLUMN,
NULL);
callback[1].area = area;
callback[1].renderer = renderer;
g_signal_connect (renderer, "edited",
G_CALLBACK (edited), tree_model);
g_object_set (renderer,
"placeholder-text", "Type here",
NULL);
renderer = gtk_cell_renderer_text_new ();
gtk_tree_view_column_pack_start (column, renderer, FALSE);
gtk_tree_view_column_set_attributes (column, renderer,
"text", STRING_COLUMN,
"editable", IS_EDITABLE_COLUMN,
"sensitive", IS_SENSITIVE_COLUMN,
NULL);
callback[2].area = area;
callback[2].renderer = renderer;
g_signal_connect (renderer, "edited",
G_CALLBACK (edited), tree_model);
g_object_set (renderer,
"placeholder-text", "Type here too",
NULL);
renderer = gtk_cell_renderer_pixbuf_new ();
g_object_set (renderer,
"xalign", 0.0,
NULL);
gtk_tree_view_column_pack_start (column, renderer, FALSE);
gtk_tree_view_column_set_attributes (column, renderer,
"icon-name", LAST_ICON_NAME_COLUMN,
"sensitive", IS_SENSITIVE_COLUMN,
NULL);
callback[3].area = area;
callback[3].renderer = renderer;
gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), column);
renderer = gtk_cell_renderer_toggle_new ();
g_signal_connect (renderer, "toggled",
G_CALLBACK (editable_toggled), tree_model);
g_object_set (renderer,
"xalign", 0.0,
NULL);
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
-1, "Editable",
renderer,
"active", IS_EDITABLE_COLUMN,
NULL);
renderer = gtk_cell_renderer_toggle_new ();
g_signal_connect (renderer, "toggled",
G_CALLBACK (sensitive_toggled), tree_model);
g_object_set (renderer,
"xalign", 0.0,
NULL);
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
-1, "Sensitive",
renderer,
"active", IS_SENSITIVE_COLUMN,
NULL);
renderer = gtk_cell_renderer_progress_new ();
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
-1, "Progress",
renderer,
"value", PROGRESS_COLUMN,
NULL);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (scrolled_window), tree_view);
gtk_window_set_default_size (GTK_WINDOW (window),
800, 250);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_append (GTK_BOX (vbox), hbox);
/* Alignment controls */
cntl_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_box_append (GTK_BOX (hbox), cntl_vbox);
create_control (cntl_vbox, 1, CNTL_ALIGN, &callback[0]);
create_control (cntl_vbox, 2, CNTL_ALIGN, &callback[1]);
create_control (cntl_vbox, 3, CNTL_ALIGN, &callback[2]);
create_control (cntl_vbox, 4, CNTL_ALIGN, &callback[3]);
/* Expand controls */
cntl_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_box_append (GTK_BOX (hbox), cntl_vbox);
create_control (cntl_vbox, 1, CNTL_EXPAND, &callback[0]);
create_control (cntl_vbox, 2, CNTL_EXPAND, &callback[1]);
create_control (cntl_vbox, 3, CNTL_EXPAND, &callback[2]);
create_control (cntl_vbox, 4, CNTL_EXPAND, &callback[3]);
/* Fixed controls */
cntl_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_box_append (GTK_BOX (hbox), cntl_vbox);
create_control (cntl_vbox, 1, CNTL_FIXED, &callback[0]);
create_control (cntl_vbox, 2, CNTL_FIXED, &callback[1]);
create_control (cntl_vbox, 3, CNTL_FIXED, &callback[2]);
create_control (cntl_vbox, 4, CNTL_FIXED, &callback[3]);
gtk_window_present (GTK_WINDOW (window));
while (!done)
g_main_context_iteration (NULL, TRUE);
return 0;
}
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