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zenity/src/tree.c

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/*
* tree.c
*
* Copyright (C) 2002 Sun Microsystems, Inc.
*
* 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, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
* Authors: Glynn Foster <glynn.foster@sun.com>
* Jonathan Blanford <jrb@redhat.com>
* Kristian Rietveld <kris@gtk.org>
*/
#include "config.h"
#include <string.h>
#include <stdlib.h>
#include "zenity.h"
#include "util.h"
#define MAX_ELEMENTS_BEFORE_SCROLLING 5
#define PRINT_HIDE_COLUMN_SEPARATOR ","
static GtkBuilder *builder;
static GSList *selected;
static gchar *separator;
static gboolean print_all_columns = FALSE;
static gint *print_columns = NULL;
static gint *hide_columns = NULL;
static int *zenity_tree_extract_column_indexes (char *indexes, gint n_columns);
static gboolean zenity_tree_column_is_hidden (gint column_index);
static void zenity_tree_dialog_response (GtkWidget *widget, int response, gpointer data);
static void zenity_tree_row_activated (GtkTreeView *tree_view, GtkTreePath *tree_path,
GtkTreeViewColumn *tree_col, gpointer data);
static gboolean
zenity_tree_dialog_untoggle (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
{
GValue toggle_value = {0, };
gtk_tree_model_get_value (model, iter, 0, &toggle_value);
if (g_value_get_boolean (&toggle_value))
gtk_list_store_set (GTK_LIST_STORE (model), iter, 0, FALSE, -1);
return FALSE;
}
static void
zenity_tree_toggled_callback (GtkCellRendererToggle *cell, gchar *path_string, gpointer data)
{
GtkTreeModel *model;
GtkTreeIter iter;
GtkTreePath *path;
gboolean value;
model = GTK_TREE_MODEL (data);
/* Because this is a radio list, we should untoggle the previous toggle so that
* we only have one selection at any given time
*/
if (GPOINTER_TO_INT (g_object_get_data (G_OBJECT (model), "radio")) == 1) {
gtk_tree_model_foreach (model, zenity_tree_dialog_untoggle, NULL);
}
path = gtk_tree_path_new_from_string (path_string);
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, 0, &value, -1);
value = !value;
gtk_list_store_set (GTK_LIST_STORE (model), &iter, 0, value, -1);
gtk_tree_path_free (path);
}
static gboolean
zenity_tree_handle_stdin (GIOChannel *channel,
GIOCondition condition,
gpointer data)
{
static GtkTreeView *tree_view;
GtkTreeModel *model;
static GtkTreeIter iter;
static gint column_count = 0;
static gint row_count = 0;
static gint n_columns;
static gboolean editable;
static gboolean toggles;
static gboolean first_time = TRUE;
tree_view = GTK_TREE_VIEW (data);
n_columns = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (tree_view), "n_columns"));
editable = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (tree_view), "editable"));
toggles = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (tree_view), "toggles"));
model = gtk_tree_view_get_model (tree_view);
if (first_time) {
first_time = FALSE;
gtk_list_store_append (GTK_LIST_STORE (model), &iter);
}
if ((condition == G_IO_IN) || (condition == G_IO_IN + G_IO_HUP)) {
GString *string;
GError *error = NULL;
string = g_string_new (NULL);
while (channel->is_readable != TRUE)
;
do {
gint status;
do {
status = g_io_channel_read_line_string (channel, string, NULL, &error);
while (gtk_events_pending ())
gtk_main_iteration ();
} while (status == G_IO_STATUS_AGAIN);
if (status != G_IO_STATUS_NORMAL) {
if (error) {
g_warning ("zenity_tree_handle_stdin () : %s", error->message);
g_error_free (error);
error = NULL;
}
continue;
}
if (column_count == n_columns) {
/* We're starting a new row */
column_count = 0;
row_count++;
gtk_list_store_append (GTK_LIST_STORE (model), &iter);
}
if (toggles && column_count == 0) {
if (strcmp (g_ascii_strdown (zenity_util_strip_newline (string->str), -1), "true") == 0)
gtk_list_store_set (GTK_LIST_STORE (model), &iter, column_count, TRUE, -1);
else
gtk_list_store_set (GTK_LIST_STORE (model), &iter, column_count, FALSE, -1);
}
else {
gtk_list_store_set (GTK_LIST_STORE (model), &iter, column_count, zenity_util_strip_newline (string->str), -1);
}
if (editable) {
gtk_list_store_set (GTK_LIST_STORE (model), &iter, n_columns, TRUE, -1);
}
if (row_count == MAX_ELEMENTS_BEFORE_SCROLLING) {
GtkWidget *scrolled_window;
GtkRequisition rectangle;
gtk_widget_size_request (GTK_WIDGET (tree_view), &rectangle);
scrolled_window = GTK_WIDGET (gtk_builder_get_object (builder,
"zenity_tree_window"));
gtk_widget_set_size_request (scrolled_window, -1, rectangle.height);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
}
column_count++;
} while (g_io_channel_get_buffer_condition (channel) == G_IO_IN);
g_string_free (string, TRUE);
}
if (condition != G_IO_IN) {
g_io_channel_shutdown (channel, TRUE, NULL);
return FALSE;
}
return TRUE;
}
static void
zenity_tree_fill_entries_from_stdin (GtkTreeView *tree_view,
gint n_columns,
gboolean toggles,
gboolean editable)
{
GIOChannel *channel;
g_object_set_data (G_OBJECT (tree_view), "n_columns", GINT_TO_POINTER (n_columns));
g_object_set_data (G_OBJECT (tree_view), "toggles", GINT_TO_POINTER (toggles));
g_object_set_data (G_OBJECT (tree_view), "editable", GINT_TO_POINTER (editable));
channel = g_io_channel_unix_new (0);
g_io_channel_set_encoding (channel, NULL, NULL);
g_io_channel_set_flags (channel, G_IO_FLAG_NONBLOCK, NULL);
g_io_add_watch (channel, G_IO_IN | G_IO_HUP, zenity_tree_handle_stdin, tree_view);
}
static void
zenity_tree_fill_entries (GtkTreeView *tree_view,
const gchar **args,
gint n_columns,
gboolean toggles,
gboolean editable)
{
GtkTreeModel *model;
GtkTreeIter iter;
gint i = 0;
model = gtk_tree_view_get_model (tree_view);
g_object_set_data (G_OBJECT (tree_view), "n_columns", GINT_TO_POINTER (n_columns));
while (args[i] != NULL) {
gint j;
gtk_list_store_append (GTK_LIST_STORE (model), &iter);
for (j = 0; j < n_columns; j++) {
if (toggles && j == 0) {
if (strcmp (g_ascii_strdown ((gchar *) args[i+j], -1), "true") == 0)
gtk_list_store_set (GTK_LIST_STORE (model), &iter, j, TRUE, -1);
else
gtk_list_store_set (GTK_LIST_STORE (model), &iter, j, FALSE, -1);
}
else
gtk_list_store_set (GTK_LIST_STORE (model), &iter, j, args[i+j], -1);
}
if (editable)
gtk_list_store_set (GTK_LIST_STORE (model), &iter, n_columns, TRUE, -1);
if (i == MAX_ELEMENTS_BEFORE_SCROLLING) {
GtkWidget *scrolled_window;
GtkRequisition rectangle;
gtk_widget_size_request (GTK_WIDGET (tree_view), &rectangle);
scrolled_window = GTK_WIDGET (gtk_builder_get_object (builder,
"zenity_tree_window"));
gtk_widget_set_size_request (scrolled_window, -1, rectangle.height);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
}
i += n_columns;
}
}
static void
zenity_cell_edited_callback (GtkCellRendererText *cell,
const gchar *path_string,
const gchar *new_text,
gpointer data)
{
GtkTreeModel *model;
GtkTreePath *path;
GtkTreeIter iter;
gint column;
model = GTK_TREE_MODEL (data);
path = gtk_tree_path_new_from_string (path_string);
column = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (cell), "column"));
gtk_tree_model_get_iter (model, &iter, path);
gtk_list_store_set (GTK_LIST_STORE (model), &iter, column, new_text, -1);
gtk_tree_path_free (path);
}
void
zenity_tree (ZenityData *data, ZenityTreeData *tree_data)
{
GtkWidget *dialog;
GObject *tree_view;
GObject *text;
GtkTreeViewColumn *column;
GtkListStore *model;
GType *column_types;
GSList *tmp;
gboolean first_column = FALSE;
gint i, column_index, n_columns;
builder = zenity_util_load_ui_file ("zenity_tree_dialog", NULL);
if (builder == NULL) {
data->exit_code = zenity_util_return_exit_code (ZENITY_ERROR);
return;
}
separator = g_strcompress (tree_data->separator);
n_columns = g_slist_length (tree_data->columns);
if (tree_data->print_column) {
if (strcmp (g_ascii_strdown (tree_data->print_column, -1), "all") == 0)
print_all_columns = TRUE;
else
print_columns = zenity_tree_extract_column_indexes (tree_data->print_column, n_columns);
}
else {
print_columns = g_new (gint, 2);
print_columns[0] = (tree_data->radiobox || tree_data->checkbox ? 2 : 1);
print_columns[1] = 0;
}
if (tree_data->hide_column)
hide_columns = zenity_tree_extract_column_indexes (tree_data->hide_column, n_columns);
if (n_columns == 0) {
g_printerr (_("No column titles specified for List dialog.\n"));
data->exit_code = zenity_util_return_exit_code (ZENITY_ERROR);
return;
}
if (tree_data->checkbox && tree_data->radiobox) {
g_printerr (_("You should use only one List dialog type.\n"));
data->exit_code = zenity_util_return_exit_code (ZENITY_ERROR);
return;
}
gtk_builder_connect_signals (builder, NULL);
dialog = GTK_WIDGET (gtk_builder_get_object (builder, "zenity_tree_dialog"));
g_signal_connect (G_OBJECT (dialog), "response",
G_CALLBACK (zenity_tree_dialog_response), data);
if (data->dialog_title)
gtk_window_set_title (GTK_WINDOW (dialog), data->dialog_title);
text = gtk_builder_get_object (builder, "zenity_tree_text");
if (tree_data->dialog_text)
gtk_label_set_markup (GTK_LABEL (text), g_strcompress (tree_data->dialog_text));
zenity_util_set_window_icon (dialog, data->window_icon, ZENITY_IMAGE_FULLPATH ("zenity-list.png"));
if (data->width > -1 || data->height > -1)
gtk_window_set_default_size (GTK_WINDOW (dialog), data->width, data->height);
tree_view = gtk_builder_get_object (builder, "zenity_tree_view");
if (!(tree_data->radiobox || tree_data->checkbox))
g_signal_connect (tree_view, "row-activated",
G_CALLBACK (zenity_tree_row_activated), data);
/* Create an empty list store */
model = g_object_new (GTK_TYPE_LIST_STORE, NULL);
if (tree_data->editable)
column_types = g_new (GType, n_columns + 1);
else
column_types = g_new (GType, n_columns);
for (i = 0; i < n_columns; i++) {
/* Have the limitation that the radioboxes and checkboxes are in the first column */
if (i == 0 && (tree_data->checkbox || tree_data->radiobox))
column_types[i] = G_TYPE_BOOLEAN;
else
column_types[i] = G_TYPE_STRING;
}
if (tree_data->editable)
column_types[n_columns] = G_TYPE_BOOLEAN;
if (tree_data->editable)
gtk_list_store_set_column_types (model, n_columns + 1, column_types);
else
gtk_list_store_set_column_types (model, n_columns, column_types);
gtk_tree_view_set_model (GTK_TREE_VIEW (tree_view), GTK_TREE_MODEL (model));
if (!(tree_data->radiobox || tree_data->checkbox)) {
if (tree_data->multi)
gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view)),
GTK_SELECTION_MULTIPLE);
else
gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view)),
GTK_SELECTION_SINGLE);
}
else
gtk_tree_selection_set_mode (gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view)),
GTK_SELECTION_NONE);
column_index = 0;
for (tmp = tree_data->columns; tmp; tmp = tmp->next) {
if (!first_column) {
if (tree_data->checkbox || tree_data->radiobox) {
GtkCellRenderer *cell_renderer;
cell_renderer = gtk_cell_renderer_toggle_new ();
if (tree_data->radiobox) {
g_object_set (G_OBJECT (cell_renderer), "radio", TRUE, NULL);
g_object_set_data (G_OBJECT (model), "radio", GINT_TO_POINTER (1));
}
g_signal_connect (cell_renderer, "toggled",
G_CALLBACK (zenity_tree_toggled_callback), model);
column = gtk_tree_view_column_new_with_attributes (tmp->data,
cell_renderer,
"active", column_index, NULL);
}
else {
if (tree_data->editable) {
GtkCellRenderer *cell_renderer;
cell_renderer = gtk_cell_renderer_text_new ();
g_signal_connect (G_OBJECT (cell_renderer), "edited",
G_CALLBACK (zenity_cell_edited_callback),
gtk_tree_view_get_model (GTK_TREE_VIEW (tree_view)));
g_object_set_data (G_OBJECT (cell_renderer), "column", GINT_TO_POINTER (column_index));
column = gtk_tree_view_column_new_with_attributes (tmp->data,
cell_renderer,
"text", column_index,
"editable", n_columns,
NULL);
}
else {
column = gtk_tree_view_column_new_with_attributes (tmp->data,
gtk_cell_renderer_text_new (),
"text", column_index,
NULL);
}
gtk_tree_view_column_set_sort_column_id (column, column_index);
gtk_tree_view_column_set_resizable (column, TRUE);
}
if (zenity_tree_column_is_hidden (1))
gtk_tree_view_column_set_visible (column, FALSE);
first_column = TRUE;
}
else {
if (tree_data->editable) {
GtkCellRenderer *cell_renderer;
cell_renderer = gtk_cell_renderer_text_new ();
g_signal_connect (G_OBJECT (cell_renderer), "edited",
G_CALLBACK (zenity_cell_edited_callback),
gtk_tree_view_get_model (GTK_TREE_VIEW (tree_view)));
g_object_set_data (G_OBJECT (cell_renderer), "column", GINT_TO_POINTER (column_index));
column = gtk_tree_view_column_new_with_attributes (tmp->data,
cell_renderer,
"text", column_index,
"editable", n_columns,
NULL);
}
else {
column = gtk_tree_view_column_new_with_attributes (tmp->data,
gtk_cell_renderer_text_new (),
"text", column_index, NULL);
}
gtk_tree_view_column_set_sort_column_id (column, column_index);
gtk_tree_view_column_set_resizable (column, TRUE);
if (zenity_tree_column_is_hidden (column_index + 1))
gtk_tree_view_column_set_visible (column, FALSE);
}
gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view), column);
column_index++;
}
gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (tree_view), TRUE);
if (tree_data->hide_header)
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view), FALSE);
if (tree_data->radiobox || tree_data->checkbox) {
if (tree_data->data && *tree_data->data)
zenity_tree_fill_entries (GTK_TREE_VIEW (tree_view), tree_data->data, n_columns, TRUE, tree_data->editable);
else
zenity_tree_fill_entries_from_stdin (GTK_TREE_VIEW (tree_view), n_columns, TRUE, tree_data->editable);
}
else {
if (tree_data->data && *tree_data->data)
zenity_tree_fill_entries (GTK_TREE_VIEW (tree_view), tree_data->data, n_columns, FALSE, tree_data->editable);
else
zenity_tree_fill_entries_from_stdin (GTK_TREE_VIEW (tree_view), n_columns, FALSE, tree_data->editable);
}
zenity_util_show_dialog (dialog);
if(data->timeout_delay > 0) {
g_timeout_add_seconds (data->timeout_delay, (GSourceFunc) zenity_util_timeout_handle, NULL);
}
gtk_main ();
g_object_unref (builder);
}
static void
zenity_tree_dialog_get_selected (GtkTreeModel *model, GtkTreePath *path_buf, GtkTreeIter *iter, GtkTreeView *tree_view)
{
GValue value = {0, };
gint n_columns, i;
n_columns = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (tree_view), "n_columns"));
if (print_all_columns) {
for (i = 0; i < n_columns; i++) {
gtk_tree_model_get_value (model, iter, i, &value);
selected = g_slist_append (selected, g_value_dup_string (&value));
g_value_unset (&value);
}
return;
}
for (i = 0; print_columns[i] != 0; i++) {
gtk_tree_model_get_value (model, iter, print_columns[i] - 1, &value);
selected = g_slist_append (selected, g_value_dup_string (&value));
g_value_unset (&value);
}
}
static gboolean
zenity_tree_dialog_toggle_get_selected (GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, GtkTreeView *tree_view)
{
GValue toggle_value = {0, };
gint n_columns, i;
n_columns = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (tree_view), "n_columns"));
gtk_tree_model_get_value (model, iter, 0, &toggle_value);
if (g_value_get_boolean (&toggle_value)) {
GValue value = {0, };
if (print_all_columns) {
for (i = 1; i < n_columns; i++) {
gtk_tree_model_get_value (model, iter, i, &value);
selected = g_slist_append (selected, g_value_dup_string (&value));
g_value_unset (&value);
}
g_value_unset (&toggle_value);
return FALSE;
}
for (i = 0; print_columns[i] != 0; i++) {
gtk_tree_model_get_value (model, iter, print_columns[i] - 1, &value);
selected = g_slist_append (selected, g_value_dup_string (&value));
g_value_unset (&value);
}
}
g_value_unset (&toggle_value);
return FALSE;
}
static void
zenity_tree_dialog_output (void)
{
GSList *tmp;
for (tmp = selected; tmp; tmp = tmp->next) {
if (tmp->next != NULL) {
g_print ("%s%s", (gchar *) tmp->data, separator);
}
else
g_print ("%s\n", (gchar *) tmp->data);
}
g_free (print_columns);
g_free (hide_columns);
g_free (separator);
g_slist_foreach (selected, (GFunc) g_free, NULL);
selected = NULL;
}
static void
zenity_tree_dialog_response (GtkWidget *widget, int response, gpointer data)
{
ZenityData *zen_data = data;
GObject *tree_view;
GtkTreeSelection *selection;
GtkTreeModel *model;
switch (response) {
case GTK_RESPONSE_OK:
tree_view = gtk_builder_get_object (builder, "zenity_tree_view");
model = gtk_tree_view_get_model (GTK_TREE_VIEW (tree_view));
if (gtk_tree_model_get_column_type (model, 0) == G_TYPE_BOOLEAN)
gtk_tree_model_foreach (model, (GtkTreeModelForeachFunc) zenity_tree_dialog_toggle_get_selected,
GTK_TREE_VIEW (tree_view));
else {
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
gtk_tree_selection_selected_foreach (selection,
(GtkTreeSelectionForeachFunc) zenity_tree_dialog_get_selected,
GTK_TREE_VIEW (tree_view));
}
zenity_tree_dialog_output ();
zen_data->exit_code = zenity_util_return_exit_code (ZENITY_OK);
break;
case GTK_RESPONSE_CANCEL:
zen_data->exit_code = zenity_util_return_exit_code (ZENITY_CANCEL);
break;
default:
/* Esc dialog */
zen_data->exit_code = zenity_util_return_exit_code (ZENITY_ESC);
break;
}
gtk_main_quit ();
}
static void
zenity_tree_row_activated (GtkTreeView *tree_view, GtkTreePath *tree_path,
GtkTreeViewColumn *tree_col, gpointer data)
{
ZenityData *zen_data = data;
GtkTreeSelection *selection;
GtkTreeModel *model;
model = gtk_tree_view_get_model (GTK_TREE_VIEW (tree_view));
selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
gtk_tree_selection_selected_foreach (selection,
(GtkTreeSelectionForeachFunc) zenity_tree_dialog_get_selected,
GTK_TREE_VIEW (tree_view));
zenity_tree_dialog_output ();
zen_data->exit_code = zenity_util_return_exit_code (ZENITY_OK);
gtk_main_quit ();
}
static gboolean
zenity_tree_column_is_hidden (gint column_index)
{
gint i;
if (hide_columns != NULL)
for (i = 0; hide_columns[i] != 0; i++)
if (hide_columns[i] == column_index)
return TRUE;
return FALSE;
}
static gint *
zenity_tree_extract_column_indexes (char *indexes, int n_columns)
{
char **tmp;
gint *result;
gint i, j, index;
tmp = g_strsplit (indexes,
PRINT_HIDE_COLUMN_SEPARATOR, 0);
result = g_new (gint, 1);
for (j = i = 0; tmp[i] != NULL; i++) {
index = atoi (tmp[i]);
if (index > 0 && index <= n_columns) {
result[j] = index;
j++;
result = g_renew (gint, result, j + 1);
}
}
result[j] = 0;
g_strfreev (tmp);
return result;
}
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