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GtkTree section from David Huggins-Daines <bn711@freenet.carleton.ca>, add

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Mon Jul 27 09:18:13 BST 1998  Tony Gale  <gale@gtk.org>

        * docs/gtk_tut.sgml: GtkTree section from
          David Huggins-Daines <bn711@freenet.carleton.ca>,
          add a GtkText widget example
        * examples/text/* example/tree/* : new examples for the
          GtkTree and GtkText widgets
This commit is contained in:
BST 1998 Tony Gale 1998-07-27 08:21:40 +00:00 committed by Tony Gale
parent 718259dcc2
commit 8864534892
13 changed files with 4217 additions and 12 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
Mon Jul 27 09:18:13 BST 1998 Tony Gale <gale@gtk.org>
* docs/gtk_tut.sgml: GtkTree section from
David Huggins-Daines <bn711@freenet.carleton.ca>,
add a GtkText widget example
* examples/text/* example/tree/* : new examples for the
GtkTree and GtkText widgets
Mon Jul 27 00:46:21 CDT 1998 Shawn T. Amundson <amundson@gtk.org>
* Released GTK+ 1.1.0

8
ChangeLog.pre-2-0
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@ -1,3 +1,11 @@
Mon Jul 27 09:18:13 BST 1998 Tony Gale <gale@gtk.org>
* docs/gtk_tut.sgml: GtkTree section from
David Huggins-Daines <bn711@freenet.carleton.ca>,
add a GtkText widget example
* examples/text/* example/tree/* : new examples for the
GtkTree and GtkText widgets
Mon Jul 27 00:46:21 CDT 1998 Shawn T. Amundson <amundson@gtk.org>
* Released GTK+ 1.1.0

8
ChangeLog.pre-2-10
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@ -1,3 +1,11 @@
Mon Jul 27 09:18:13 BST 1998 Tony Gale <gale@gtk.org>
* docs/gtk_tut.sgml: GtkTree section from
David Huggins-Daines <bn711@freenet.carleton.ca>,
add a GtkText widget example
* examples/text/* example/tree/* : new examples for the
GtkTree and GtkText widgets
Mon Jul 27 00:46:21 CDT 1998 Shawn T. Amundson <amundson@gtk.org>
* Released GTK+ 1.1.0

8
ChangeLog.pre-2-2
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@ -1,3 +1,11 @@
Mon Jul 27 09:18:13 BST 1998 Tony Gale <gale@gtk.org>
* docs/gtk_tut.sgml: GtkTree section from
David Huggins-Daines <bn711@freenet.carleton.ca>,
add a GtkText widget example
* examples/text/* example/tree/* : new examples for the
GtkTree and GtkText widgets
Mon Jul 27 00:46:21 CDT 1998 Shawn T. Amundson <amundson@gtk.org>
* Released GTK+ 1.1.0

8
ChangeLog.pre-2-4
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@ -1,3 +1,11 @@
Mon Jul 27 09:18:13 BST 1998 Tony Gale <gale@gtk.org>
* docs/gtk_tut.sgml: GtkTree section from
David Huggins-Daines <bn711@freenet.carleton.ca>,
add a GtkText widget example
* examples/text/* example/tree/* : new examples for the
GtkTree and GtkText widgets
Mon Jul 27 00:46:21 CDT 1998 Shawn T. Amundson <amundson@gtk.org>
* Released GTK+ 1.1.0

8
ChangeLog.pre-2-6
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@ -1,3 +1,11 @@
Mon Jul 27 09:18:13 BST 1998 Tony Gale <gale@gtk.org>
* docs/gtk_tut.sgml: GtkTree section from
David Huggins-Daines <bn711@freenet.carleton.ca>,
add a GtkText widget example
* examples/text/* example/tree/* : new examples for the
GtkTree and GtkText widgets
Mon Jul 27 00:46:21 CDT 1998 Shawn T. Amundson <amundson@gtk.org>
* Released GTK+ 1.1.0

8
ChangeLog.pre-2-8
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@ -1,3 +1,11 @@
Mon Jul 27 09:18:13 BST 1998 Tony Gale <gale@gtk.org>
* docs/gtk_tut.sgml: GtkTree section from
David Huggins-Daines <bn711@freenet.carleton.ca>,
add a GtkText widget example
* examples/text/* example/tree/* : new examples for the
GtkTree and GtkText widgets
Mon Jul 27 00:46:21 CDT 1998 Shawn T. Amundson <amundson@gtk.org>
* Released GTK+ 1.1.0

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8
examples/text/Makefile Normal file
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CC = gcc
text: text.c
$(CC) `gtk-config --cflags` `gtk-config --libs` text.c -o text
clean:
rm -f *.o text

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examples/text/text.c Normal file
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/* example-start text text.c */
/* text.c */
#include <stdio.h>
#include <gtk/gtk.h>
void text_toggle_editable (GtkWidget *checkbutton,
GtkWidget *text)
{
gtk_text_set_editable(GTK_TEXT(text),
GTK_TOGGLE_BUTTON(checkbutton)->active);
}
void text_toggle_word_wrap (GtkWidget *checkbutton,
GtkWidget *text)
{
gtk_text_set_word_wrap(GTK_TEXT(text),
GTK_TOGGLE_BUTTON(checkbutton)->active);
}
void close_application( GtkWidget *widget, gpointer data )
{
gtk_main_quit();
}
int main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *box1;
GtkWidget *box2;
GtkWidget *hbox;
GtkWidget *button;
GtkWidget *check;
GtkWidget *separator;
GtkWidget *table;
GtkWidget *vscrollbar;
GtkWidget *text;
GdkColormap *cmap;
GdkColor colour;
GdkFont *fixed_font;
FILE *infile;
gtk_init (&argc, &argv);
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_widget_set_usize (window, 600, 500);
gtk_window_set_policy (GTK_WINDOW(window), TRUE, TRUE, FALSE);
gtk_signal_connect (GTK_OBJECT (window), "destroy",
GTK_SIGNAL_FUNC(close_application),
NULL);
gtk_window_set_title (GTK_WINDOW (window), "Text Widget Example");
gtk_container_border_width (GTK_CONTAINER (window), 0);
box1 = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (window), box1);
gtk_widget_show (box1);
box2 = gtk_vbox_new (FALSE, 10);
gtk_container_border_width (GTK_CONTAINER (box2), 10);
gtk_box_pack_start (GTK_BOX (box1), box2, TRUE, TRUE, 0);
gtk_widget_show (box2);
table = gtk_table_new (2, 2, FALSE);
gtk_table_set_row_spacing (GTK_TABLE (table), 0, 2);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 2);
gtk_box_pack_start (GTK_BOX (box2), table, TRUE, TRUE, 0);
gtk_widget_show (table);
/* Create the GtkText widget */
text = gtk_text_new (NULL, NULL);
gtk_text_set_editable (GTK_TEXT (text), TRUE);
gtk_table_attach (GTK_TABLE (table), text, 0, 1, 0, 1,
GTK_EXPAND | GTK_SHRINK | GTK_FILL,
GTK_EXPAND | GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (text);
/* Add a vertical scrollbar to the GtkText widget */
vscrollbar = gtk_vscrollbar_new (GTK_TEXT (text)->vadj);
gtk_table_attach (GTK_TABLE (table), vscrollbar, 1, 2, 0, 1,
GTK_FILL, GTK_EXPAND | GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (vscrollbar);
/* Get the system colour map and allocate the colour red */
cmap = gdk_colormap_get_system();
colour.red = 0xffff;
colour.green = 0;
colour.blue = 0;
if (!gdk_color_alloc(cmap, &colour)) {
g_error("couldn't allocate colour");
}
/* Load a fixed font */
fixed_font = gdk_font_load ("-misc-fixed-medium-r-*-*-*-140-*-*-*-*-*-*");
/* Realizing a widget creates a window for it, ready for us to insert some text */
gtk_widget_realize (text);
/* Freeze the text widget, ready for multiple updates */
gtk_text_freeze (GTK_TEXT (text));
/* Insert some coloured text */
gtk_text_insert (GTK_TEXT (text), NULL, &text->style->black, NULL,
"Supports ", -1);
gtk_text_insert (GTK_TEXT (text), NULL, &colour, NULL,
"colored ", -1);
gtk_text_insert (GTK_TEXT (text), NULL, &text->style->black, NULL,
"text and different ", -1);
gtk_text_insert (GTK_TEXT (text), fixed_font, &text->style->black, NULL,
"fonts\n\n", -1);
/* Load the file text.c into the text window */
infile = fopen("text.c", "r");
if (infile) {
char buffer[1024];
int nchars;
while (1)
{
nchars = fread(buffer, 1, 1024, infile);
gtk_text_insert (GTK_TEXT (text), fixed_font, NULL,
NULL, buffer, nchars);
if (nchars < 1024)
break;
}
fclose (infile);
}
/* Thaw the text widget, allowing the updates to become visible */
gtk_text_thaw (GTK_TEXT (text));
hbox = gtk_hbutton_box_new ();
gtk_box_pack_start (GTK_BOX (box2), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
check = gtk_check_button_new_with_label("Editable");
gtk_box_pack_start (GTK_BOX (hbox), check, FALSE, FALSE, 0);
gtk_signal_connect (GTK_OBJECT(check), "toggled",
GTK_SIGNAL_FUNC(text_toggle_editable), text);
gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(check), TRUE);
gtk_widget_show (check);
check = gtk_check_button_new_with_label("Wrap Words");
gtk_box_pack_start (GTK_BOX (hbox), check, FALSE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT(check), "toggled",
GTK_SIGNAL_FUNC(text_toggle_word_wrap), text);
gtk_toggle_button_set_state(GTK_TOGGLE_BUTTON(check), FALSE);
gtk_widget_show (check);
separator = gtk_hseparator_new ();
gtk_box_pack_start (GTK_BOX (box1), separator, FALSE, TRUE, 0);
gtk_widget_show (separator);
box2 = gtk_vbox_new (FALSE, 10);
gtk_container_border_width (GTK_CONTAINER (box2), 10);
gtk_box_pack_start (GTK_BOX (box1), box2, FALSE, TRUE, 0);
gtk_widget_show (box2);
button = gtk_button_new_with_label ("close");
gtk_signal_connect (GTK_OBJECT (button), "clicked",
GTK_SIGNAL_FUNC(close_application),
NULL);
gtk_box_pack_start (GTK_BOX (box2), button, TRUE, TRUE, 0);
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_widget_grab_default (button);
gtk_widget_show (button);
gtk_widget_show (window);
gtk_main ();
return 0;
}
/* example-end */

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examples/tree/Makefile Normal file
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CC = gcc
tree: tree.c
$(CC) `gtk-config --cflags` `gtk-config --libs` tree.c -o tree
clean:
rm -f *.o tree

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examples/tree/tree.c Normal file
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/* example-start tree tree.c */
#include <gtk/gtk.h>
/* for all the GtkItem:: and GtkTreeItem:: signals */
static void cb_itemsignal (GtkWidget *item, gchar *signame)
{
gchar *name;
GtkLabel *label;
/* It's a GtkBin, so it has one child, which we know to be a
label, so get that */
label = GTK_LABEL (GTK_BIN (item)->child);
/* Get the text of the label */
gtk_label_get (label, &name);
/* Get the level of the tree which the item is in */
g_print ("%s called for item %s->%p, level %d\n", signame, name,
item, GTK_TREE (item->parent)->level);
}
/* Note that this is never called */
static void cb_unselect_child (GtkWidget *root_tree, GtkWidget *child,
GtkWidget *subtree)
{
g_print ("unselect_child called for root tree %p, subtree %p, child %p\n",
root_tree, subtree, child);
}
/* Note that this is called every time the user clicks on an item,
whether it is already selected or not. */
static void cb_select_child (GtkWidget *root_tree, GtkWidget *child,
GtkWidget *subtree)
{
g_print ("select_child called for root tree %p, subtree %p, child %p\n",
root_tree, subtree, child);
}
static void cb_selection_changed (GtkWidget *tree)
{
GList *i;
g_print ("selection_change called for tree %p\n", tree);
g_print ("selected objects are:\n");
i = GTK_TREE_SELECTION(tree);
while (i){
gchar *name;
GtkLabel *label;
GtkWidget *item;
/* Get a GtkWidget pointer from the list node */
item = GTK_WIDGET (i->data);
label = GTK_LABEL (GTK_BIN (item)->child);
gtk_label_get (label, &name);
g_print ("\t%s on level %d\n", name, GTK_TREE
(item->parent)->level);
i = i->next;
}
}
int main (int argc, char *argv[])
{
GtkWidget *window, *scrolled_win, *tree;
static gchar *itemnames[] = {"Foo", "Bar", "Baz", "Quux",
"Maurice"};
gint i;
gtk_init (&argc, &argv);
/* a generic toplevel window */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_signal_connect (GTK_OBJECT(window), "delete_event",
GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
gtk_container_border_width (GTK_CONTAINER(window), 5);
/* A generic scrolled window */
scrolled_win = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_win),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_widget_set_usize (scrolled_win, 150, 200);
gtk_container_add (GTK_CONTAINER(window), scrolled_win);
gtk_widget_show (scrolled_win);
/* Create the root tree */
tree = gtk_tree_new();
g_print ("root tree is %p\n", tree);
/* connect all GtkTree:: signals */
gtk_signal_connect (GTK_OBJECT(tree), "select_child",
GTK_SIGNAL_FUNC(cb_select_child), tree);
gtk_signal_connect (GTK_OBJECT(tree), "unselect_child",
GTK_SIGNAL_FUNC(cb_unselect_child), tree);
gtk_signal_connect (GTK_OBJECT(tree), "selection_changed",
GTK_SIGNAL_FUNC(cb_selection_changed), tree);
/* Add it to the scrolled window */
gtk_container_add (GTK_CONTAINER(scrolled_win), tree);
/* Set the selection mode */
gtk_tree_set_selection_mode (GTK_TREE(tree),
GTK_SELECTION_MULTIPLE);
/* Show it */
gtk_widget_show (tree);
for (i = 0; i < 5; i++){
GtkWidget *subtree, *item;
gint j;
/* Create a tree item */
item = gtk_tree_item_new_with_label (itemnames[i]);
/* Connect all GtkItem:: and GtkTreeItem:: signals */
gtk_signal_connect (GTK_OBJECT(item), "select",
GTK_SIGNAL_FUNC(cb_itemsignal), "select");
gtk_signal_connect (GTK_OBJECT(item), "deselect",
GTK_SIGNAL_FUNC(cb_itemsignal), "deselect");
gtk_signal_connect (GTK_OBJECT(item), "toggle",
GTK_SIGNAL_FUNC(cb_itemsignal), "toggle");
gtk_signal_connect (GTK_OBJECT(item), "expand",
GTK_SIGNAL_FUNC(cb_itemsignal), "expand");
gtk_signal_connect (GTK_OBJECT(item), "collapse",
GTK_SIGNAL_FUNC(cb_itemsignal), "collapse");
/* Add it to the parent tree */
gtk_tree_append (GTK_TREE(tree), item);
/* Show it - this can be done at any time */
gtk_widget_show (item);
/* Create this item's subtree */
subtree = gtk_tree_new();
g_print ("-> item %s->%p, subtree %p\n", itemnames[i], item,
subtree);
/* This is still necesary if you want these signals to be called
for the subtree's children. Note that selection_change will be
signalled for the root tree regardless. */
gtk_signal_connect (GTK_OBJECT(subtree), "select_child",
GTK_SIGNAL_FUNC(cb_select_child), subtree);
gtk_signal_connect (GTK_OBJECT(subtree), "unselect_child",
GTK_SIGNAL_FUNC(cb_unselect_child), subtree);
/* This has absolutely no effect, because it is completely ignored
in subtrees */
gtk_tree_set_selection_mode (GTK_TREE(subtree),
GTK_SELECTION_SINGLE);
/* Neither does this, but for a rather different reason - the
view_mode and view_line values of a tree are propagated to
subtrees when they are mapped. So, setting it later on would
actually have a (somewhat unpredictable) effect */
gtk_tree_set_view_mode (GTK_TREE(subtree), GTK_TREE_VIEW_ITEM);
/* Set this item's subtree - note that you cannot do this until
AFTER the item has been added to its parent tree! */
gtk_tree_item_set_subtree (GTK_TREE_ITEM(item), subtree);
for (j = 0; j < 5; j++){
GtkWidget *subitem;
/* Create a subtree item, in much the same way */
subitem = gtk_tree_item_new_with_label (itemnames[j]);
/* Connect all GtkItem:: and GtkTreeItem:: signals */
gtk_signal_connect (GTK_OBJECT(subitem), "select",
GTK_SIGNAL_FUNC(cb_itemsignal), "select");
gtk_signal_connect (GTK_OBJECT(subitem), "deselect",
GTK_SIGNAL_FUNC(cb_itemsignal), "deselect");
gtk_signal_connect (GTK_OBJECT(subitem), "toggle",
GTK_SIGNAL_FUNC(cb_itemsignal), "toggle");
gtk_signal_connect (GTK_OBJECT(subitem), "expand",
GTK_SIGNAL_FUNC(cb_itemsignal), "expand");
gtk_signal_connect (GTK_OBJECT(subitem), "collapse",
GTK_SIGNAL_FUNC(cb_itemsignal), "collapse");
g_print ("-> -> item %s->%p\n", itemnames[j], subitem);
/* Add it to its parent tree */
gtk_tree_append (GTK_TREE(subtree), subitem);
/* Show it */
gtk_widget_show (subitem);
}
}
/* Show the window and loop endlessly */
gtk_widget_show (window);
gtk_main();
return 0;
}
/* example-end */