Commit 1ddb7f30 authored by Havoc Pennington's avatar Havoc Pennington
Browse files

Forgot to add this file

parent 9adcd8a4
/* Text Widget
*
* The GtkTextView widget displays a GtkTextBuffer. One GtkTextBuffer
* can be displayed by multiple GtkTextViews. This demo has two views
* displaying a single buffer, and shows off the widget's text
* formatting features.
*
*/
#include <gtk/gtk.h>
/* Don't copy this bad example; inline RGB data is always a better
* idea than inline XPMs.
*/
static char * book_open_xpm[] = {
"16 16 4 1",
" c None s None",
". c black",
"X c #808080",
"o c white",
" ",
" .. ",
" .Xo. ... ",
" .Xoo. ..oo. ",
" .Xooo.Xooo... ",
" .Xooo.oooo.X. ",
" .Xooo.Xooo.X. ",
" .Xooo.oooo.X. ",
" .Xooo.Xooo.X. ",
" .Xooo.oooo.X. ",
" .Xoo.Xoo..X. ",
" .Xo.o..ooX. ",
" .X..XXXXX. ",
" ..X....... ",
" .. ",
" "};
#define gray50_width 2
#define gray50_height 2
static char gray50_bits[] = {
0x02, 0x01
};
/* FIXME once TextTag is a GObject remove these awful hacks ;-) */
#define g_object_set gtk_object_set
#undef G_OBJECT
#define G_OBJECT(x) ((void*)x)
static void
create_tags (GtkTextBuffer *buffer)
{
GtkTextTag *tag;
GdkBitmap *stipple;
/* Create a bunch of tags. Note that it's also possible to
* create tags with gtk_text_tag_new() then add them to the
* tag table for the buffer, gtk_text_buffer_create_tag() is
* just a convenience function. Also note that you don't have
* to give tags a name; pass NULL for the name to create an
* anonymous tag.
*
* In any real app, another useful optimization would be to create
* a GtkTextTagTable in advance, and reuse the same tag table for
* all the buffers with the same tag set, instead of creating
* new copies of the same tags for every buffer.
*
* Tags are assigned default priorities in order of addition to the
* tag table. That is, tags created later that affect the same
* text property as an earlier tag will override the earlier tag.
* You can modify tag priorities with gtk_text_tag_set_priority().
*/
tag = gtk_text_buffer_create_tag (buffer, "italic");
g_object_set (G_OBJECT (tag), "font", "sans italic", NULL);
tag = gtk_text_buffer_create_tag (buffer, "bold");
g_object_set (G_OBJECT (tag), "font", "sans bold", NULL);
tag = gtk_text_buffer_create_tag (buffer, "big");
g_object_set (G_OBJECT (tag), "font", "sans 120", NULL);
tag = gtk_text_buffer_create_tag (buffer, "blue_foreground");
g_object_set (G_OBJECT (tag), "foreground", "blue", NULL);
tag = gtk_text_buffer_create_tag (buffer, "red_background");
g_object_set (G_OBJECT (tag), "background", "red", NULL);
stipple = gdk_bitmap_create_from_data (NULL,
gray50_bits, gray50_width,
gray50_height);
tag = gtk_text_buffer_create_tag (buffer, "background_stipple");
g_object_set (G_OBJECT (tag), "background_stipple", stipple, NULL);
tag = gtk_text_buffer_create_tag (buffer, "foreground_stipple");
g_object_set (G_OBJECT (tag), "foreground_stipple", stipple, NULL);
g_object_unref (G_OBJECT (stipple));
tag = gtk_text_buffer_create_tag (buffer, "big_gap_before_line");
g_object_set (G_OBJECT (tag), "pixels_above_lines", 30, NULL);
tag = gtk_text_buffer_create_tag (buffer, "big_gap_after_line");
g_object_set (G_OBJECT (tag), "pixels_below_lines", 30, NULL);
tag = gtk_text_buffer_create_tag (buffer, "double_spaced_line");
g_object_set (G_OBJECT (tag), "pixels_inside_wrap", 10, NULL);
tag = gtk_text_buffer_create_tag (buffer, "not_editable");
g_object_set (G_OBJECT (tag), "editable", FALSE, NULL);
tag = gtk_text_buffer_create_tag (buffer, "word_wrap");
g_object_set (G_OBJECT (tag), "wrap_mode", GTK_WRAPMODE_WORD, NULL);
tag = gtk_text_buffer_create_tag (buffer, "char_wrap");
g_object_set (G_OBJECT (tag), "wrap_mode", GTK_WRAPMODE_CHAR, NULL);
tag = gtk_text_buffer_create_tag (buffer, "no_wrap");
g_object_set (G_OBJECT (tag), "wrap_mode", GTK_WRAPMODE_NONE, NULL);
tag = gtk_text_buffer_create_tag (buffer, "center");
g_object_set (G_OBJECT (tag), "justify", GTK_JUSTIFY_CENTER, NULL);
tag = gtk_text_buffer_create_tag (buffer, "right_justify");
g_object_set (G_OBJECT (tag), "justify", GTK_JUSTIFY_RIGHT, NULL);
tag = gtk_text_buffer_create_tag (buffer, "wide_margins");
g_object_set (G_OBJECT (tag),
"left_margin", 50, "right_margin", 50,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "strikethrough");
g_object_set (G_OBJECT (tag), "strikethrough", TRUE, NULL);
tag = gtk_text_buffer_create_tag (buffer, "underline");
g_object_set (G_OBJECT (tag), "underline", PANGO_UNDERLINE_SINGLE, NULL);
tag = gtk_text_buffer_create_tag (buffer, "double_underline");
g_object_set (G_OBJECT (tag), "underline", PANGO_UNDERLINE_DOUBLE, NULL);
tag = gtk_text_buffer_create_tag (buffer, "superscript");
g_object_set (G_OBJECT (tag),
"offset", 10,
"font", "Sans 8",
NULL);
tag = gtk_text_buffer_create_tag (buffer, "subscript");
g_object_set (G_OBJECT (tag),
"offset", -10,
"font", "Sans 8",
NULL);
}
static void
insert_text (GtkTextBuffer *buffer)
{
GtkTextIter iter;
GtkTextIter start, end;
/* get start of buffer; each insertion will revalidate the
* iterator to point to just after the inserted text.
*/
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
gtk_text_buffer_insert (buffer, &iter, "The text widget can display text with all kinds of nifty attributes.\n", -1);
gtk_text_buffer_insert (buffer, &iter, "For example, you can have ", -1);
gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,
"italic", -1,
"italic", NULL);
gtk_text_buffer_insert (buffer, &iter, ", ", -1);
gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,
"bold", -1,
"bold", NULL);
gtk_text_buffer_insert (buffer, &iter, ", or ", -1);
gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,
"huge", -1,
"big", NULL);
gtk_text_buffer_insert (buffer, &iter, " text. ", -1);
gtk_text_buffer_insert (buffer, &iter, "Also, colors such as ", -1);
gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,
"a blue foreground", -1,
"blue_foreground", NULL);
gtk_text_buffer_insert (buffer, &iter, " or ", -1);
gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,
"a red background", -1,
"red_background", NULL);
gtk_text_buffer_insert (buffer, &iter, " or even ", -1);
gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,
"a stippled red background", -1,
"red_background",
"background_stipple",
NULL);
gtk_text_buffer_insert (buffer, &iter, " or ", -1);
gtk_text_buffer_insert_with_tags_by_name (buffer, &iter,
"a stippled blue foreground on solid red background", -1,
"blue_foreground",
"red_background",
"foreground_stipple",
NULL);
gtk_text_buffer_insert (buffer, &iter, " can be used.\n", -1);
gtk_text_buffer_insert (buffer, &iter, "This demo doesn't even demonstrate all the GtkTextBuffer features; it leaves out, for example: invisible/hidden text, tab stops, application-drawn areas on the sides of the widget for displaying breakpoints and such...", -1);
/* Apply word_wrap tag to whole buffer */
gtk_text_buffer_get_bounds (buffer, &start, &end);
gtk_text_buffer_apply_tag_by_name (buffer, "word_wrap", &start, &end);
}
void
do_textview (void)
{
static GtkWidget *window = NULL;
if (!window)
{
GtkWidget *vpaned;
GtkWidget *view1;
GtkWidget *view2;
GtkWidget *frame;
GtkTextBuffer *buffer;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_signal_connect (GTK_OBJECT (window), "destroy",
GTK_SIGNAL_FUNC(gtk_widget_destroyed),
&window);
gtk_window_set_title (GTK_WINDOW (window), "TextView");
gtk_container_set_border_width (GTK_CONTAINER (window), 0);
vpaned = gtk_vpaned_new ();
gtk_container_set_border_width (GTK_CONTAINER(vpaned), 5);
gtk_container_add (GTK_CONTAINER (window), vpaned);
/* For convenience, we just use the autocreated buffer from
* the first text view; you could also create the buffer
* by itself with gtk_text_buffer_new(), then later create
* a view widget.
*/
view1 = gtk_text_view_new ();
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view1));
view2 = gtk_text_view_new_with_buffer (buffer);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME(frame), GTK_SHADOW_IN);
gtk_widget_set_usize (frame, 300, 200);
gtk_paned_add1 (GTK_PANED (vpaned), frame);
gtk_container_add (GTK_CONTAINER (frame), view1);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME(frame), GTK_SHADOW_IN);
gtk_widget_set_usize (frame, 300, 200);
gtk_paned_add2 (GTK_PANED (vpaned), frame);
gtk_container_add (GTK_CONTAINER (frame), view2);
create_tags (buffer);
insert_text (buffer);
gtk_widget_show_all (vpaned);
}
if (!GTK_WIDGET_VISIBLE (window))
gtk_widget_show (window);
else
gtk_widget_destroy (window);
}
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