/* testtreecolumnsizing.c: Test case for tree view column resizing. * * Copyright (C) 2008 Kristian Rietveld <kris@gtk.org> * * This work is provided "as is"; redistribution and modification * in whole or in part, in any medium, physical or electronic is * permitted without restriction. * * This work 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. * * In no event shall the authors or contributors be liable for any * direct, indirect, incidental, special, exemplary, or consequential * damages (including, but not limited to, procurement of substitute * goods or services; loss of use, data, or profits; or business * interruption) however caused and on any theory of liability, whether * in contract, strict liability, or tort (including negligence or * otherwise) arising in any way out of the use of this software, even * if advised of the possibility of such damage. */ #include <gtk/gtk.h> #include <string.h> #define NO_EXPAND "No expandable columns" #define SINGLE_EXPAND "One expandable column" #define MULTI_EXPAND "Multiple expandable columns" #define LAST_EXPAND "Last column is expandable" #define BORDER_EXPAND "First and last columns are expandable" #define ALL_EXPAND "All columns are expandable" #define N_ROWS 10 static GtkTreeModel * create_model (void) { int i; GtkListStore *store; store = gtk_list_store_new (5, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING); for (i = 0; i < N_ROWS; i++) { gchar *str; str = g_strdup_printf ("Row %d", i); gtk_list_store_insert_with_values (store, NULL, i, 0, str, 1, "Blah blah blah blah blah", 2, "Less blah", 3, "Medium length", 4, "Eek", -1); g_free (str); } return GTK_TREE_MODEL (store); } static void toggle_long_content_row (GtkToggleButton *button, gpointer user_data) { GtkTreeModel *model; model = gtk_tree_view_get_model (GTK_TREE_VIEW (user_data)); if (gtk_tree_model_iter_n_children (model, NULL) == N_ROWS) { gtk_list_store_insert_with_values (GTK_LIST_STORE (model), NULL, N_ROWS, 0, "Very very very very longggggg", 1, "Blah blah blah blah blah", 2, "Less blah", 3, "Medium length", 4, "Eek we make the scrollbar appear", -1); } else { GtkTreeIter iter; gtk_tree_model_iter_nth_child (model, &iter, NULL, N_ROWS); gtk_list_store_remove (GTK_LIST_STORE (model), &iter); } } static void combo_box_changed (GtkComboBox *combo_box, gpointer user_data) { gchar *str; GList *list; GList *columns; str = gtk_combo_box_text_get_active_text (GTK_COMBO_BOX_TEXT (combo_box)); if (!str) return; columns = gtk_tree_view_get_columns (GTK_TREE_VIEW (user_data)); if (!strcmp (str, NO_EXPAND)) { for (list = columns; list; list = list->next) gtk_tree_view_column_set_expand (list->data, FALSE); } else if (!strcmp (str, SINGLE_EXPAND)) { for (list = columns; list; list = list->next) { if (list->prev && !list->prev->prev) /* This is the second column */ gtk_tree_view_column_set_expand (list->data, TRUE); else gtk_tree_view_column_set_expand (list->data, FALSE); } } else if (!strcmp (str, MULTI_EXPAND)) { for (list = columns; list; list = list->next) { if (list->prev && !list->prev->prev) /* This is the second column */ gtk_tree_view_column_set_expand (list->data, TRUE); else if (list->prev && !list->prev->prev->prev) /* This is the third column */ gtk_tree_view_column_set_expand (list->data, TRUE); else gtk_tree_view_column_set_expand (list->data, FALSE); } } else if (!strcmp (str, LAST_EXPAND)) { for (list = columns; list->next; list = list->next) gtk_tree_view_column_set_expand (list->data, FALSE); /* This is the last column */ gtk_tree_view_column_set_expand (list->data, TRUE); } else if (!strcmp (str, BORDER_EXPAND)) { gtk_tree_view_column_set_expand (columns->data, TRUE); for (list = columns->next; list->next; list = list->next) gtk_tree_view_column_set_expand (list->data, FALSE); /* This is the last column */ gtk_tree_view_column_set_expand (list->data, TRUE); } else if (!strcmp (str, ALL_EXPAND)) { for (list = columns; list; list = list->next) gtk_tree_view_column_set_expand (list->data, TRUE); } g_free (str); g_list_free (columns); } int main (int argc, char **argv) { int i; GtkWidget *window; GtkWidget *vbox; GtkWidget *combo_box; GtkWidget *sw; GtkWidget *tree_view; GtkWidget *button; gtk_init (); /* Window and box */ window = gtk_window_new (GTK_WINDOW_TOPLEVEL); gtk_window_set_default_size (GTK_WINDOW (window), 640, 480); g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL); vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5); gtk_container_add (GTK_CONTAINER (window), vbox); /* Option menu contents */ combo_box = gtk_combo_box_text_new (); gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo_box), NO_EXPAND); gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo_box), SINGLE_EXPAND); gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo_box), MULTI_EXPAND); gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo_box), LAST_EXPAND); gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo_box), BORDER_EXPAND); gtk_combo_box_text_append_text (GTK_COMBO_BOX_TEXT (combo_box), ALL_EXPAND); gtk_container_add (GTK_CONTAINER (vbox), combo_box); /* Scrolled window and tree view */ sw = gtk_scrolled_window_new (NULL, NULL); gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); gtk_widget_set_vexpand (sw, TRUE); gtk_container_add (GTK_CONTAINER (vbox), sw); tree_view = gtk_tree_view_new_with_model (create_model ()); gtk_container_add (GTK_CONTAINER (sw), tree_view); for (i = 0; i < 5; i++) { GtkTreeViewColumn *column; gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view), i, "Header", gtk_cell_renderer_text_new (), "text", i, NULL); column = gtk_tree_view_get_column (GTK_TREE_VIEW (tree_view), i); gtk_tree_view_column_set_resizable (column, TRUE); } /* Toggle button for long content row */ button = gtk_toggle_button_new_with_label ("Toggle long content row"); g_signal_connect (button, "toggled", G_CALLBACK (toggle_long_content_row), tree_view); gtk_container_add (GTK_CONTAINER (vbox), button); /* Set up option menu callback and default item */ g_signal_connect (combo_box, "changed", G_CALLBACK (combo_box_changed), tree_view); gtk_combo_box_set_active (GTK_COMBO_BOX (combo_box), 0); /* Done */ gtk_widget_show (window); gtk_main (); return 0; }