mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-12-26 13:41:07 +00:00
e3df89b524
The font sizes demo had the space between the font-size spans, causing us to have a run with just a default sized space between the words, which in turn leads to wobbly cursor sizes. Avoid that by including the space in the preceding span. Also, make it bigger.
132 lines
4.5 KiB
C
132 lines
4.5 KiB
C
/* Text View/Markup
|
|
* #Keywords: GtkTextView
|
|
*
|
|
* GtkTextBuffer lets you define your own tags that can influence
|
|
* text formatting in a variety of ways. In this example, we show
|
|
* that GtkTextBuffer can load Pango markup and automatically generate
|
|
* suitable tags.
|
|
*/
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
static GtkWidget *stack;
|
|
static GtkWidget *view;
|
|
static GtkWidget *view2;
|
|
|
|
static void
|
|
source_toggled (GtkCheckButton *button)
|
|
{
|
|
if (gtk_check_button_get_active (button))
|
|
gtk_stack_set_visible_child_name (GTK_STACK (stack), "source");
|
|
else
|
|
{
|
|
GtkTextBuffer *buffer;
|
|
GtkTextIter start, end;
|
|
char *markup;
|
|
|
|
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view2));
|
|
gtk_text_buffer_get_bounds (buffer, &start, &end);
|
|
markup = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
|
|
|
|
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
|
|
gtk_text_buffer_get_bounds (buffer, &start, &end);
|
|
gtk_text_buffer_begin_irreversible_action (buffer);
|
|
gtk_text_buffer_delete (buffer, &start, &end);
|
|
gtk_text_buffer_insert_markup (buffer, &start, markup, -1);
|
|
gtk_text_buffer_end_irreversible_action (buffer);
|
|
g_free (markup);
|
|
|
|
gtk_stack_set_visible_child_name (GTK_STACK (stack), "formatted");
|
|
}
|
|
}
|
|
|
|
GtkWidget *
|
|
do_markup (GtkWidget *do_widget)
|
|
{
|
|
static GtkWidget *window = NULL;
|
|
|
|
if (!window)
|
|
{
|
|
GtkWidget *sw;
|
|
GtkTextBuffer *buffer;
|
|
GtkTextIter iter;
|
|
GBytes *bytes;
|
|
const char *markup;
|
|
GtkWidget *header;
|
|
GtkWidget *show_source;
|
|
|
|
window = gtk_window_new ();
|
|
gtk_window_set_display (GTK_WINDOW (window),
|
|
gtk_widget_get_display (do_widget));
|
|
gtk_window_set_default_size (GTK_WINDOW (window), 600, 680);
|
|
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
|
|
|
|
stack = gtk_stack_new ();
|
|
gtk_widget_show (stack);
|
|
gtk_window_set_child (GTK_WINDOW (window), stack);
|
|
|
|
show_source = gtk_check_button_new_with_label ("Source");
|
|
gtk_widget_set_valign (show_source, GTK_ALIGN_CENTER);
|
|
g_signal_connect (show_source, "toggled", G_CALLBACK (source_toggled), stack);
|
|
|
|
header = gtk_header_bar_new ();
|
|
gtk_header_bar_pack_start (GTK_HEADER_BAR (header), show_source);
|
|
gtk_window_set_titlebar (GTK_WINDOW (window), header);
|
|
|
|
gtk_window_set_title (GTK_WINDOW (window), "Markup");
|
|
|
|
view = gtk_text_view_new ();
|
|
gtk_text_view_set_editable (GTK_TEXT_VIEW (view), FALSE);
|
|
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), GTK_WRAP_WORD_CHAR);
|
|
gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view), 10);
|
|
gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view), 10);
|
|
|
|
sw = gtk_scrolled_window_new ();
|
|
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
|
|
GTK_POLICY_AUTOMATIC,
|
|
GTK_POLICY_AUTOMATIC);
|
|
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), view);
|
|
|
|
gtk_stack_add_named (GTK_STACK (stack), sw, "formatted");
|
|
|
|
view2 = gtk_text_view_new ();
|
|
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view2), GTK_WRAP_WORD);
|
|
gtk_text_view_set_left_margin (GTK_TEXT_VIEW (view2), 10);
|
|
gtk_text_view_set_right_margin (GTK_TEXT_VIEW (view2), 10);
|
|
|
|
sw = gtk_scrolled_window_new ();
|
|
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
|
|
GTK_POLICY_AUTOMATIC,
|
|
GTK_POLICY_AUTOMATIC);
|
|
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), view2);
|
|
|
|
gtk_stack_add_named (GTK_STACK (stack), sw, "source");
|
|
|
|
bytes = g_resources_lookup_data ("/markup/markup.txt", 0, NULL);
|
|
markup = (const char *)g_bytes_get_data (bytes, NULL);
|
|
|
|
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
|
|
gtk_text_buffer_get_start_iter (buffer, &iter);
|
|
gtk_text_buffer_begin_irreversible_action (buffer);
|
|
gtk_text_buffer_insert_markup (buffer, &iter, markup, -1);
|
|
gtk_text_buffer_end_irreversible_action (buffer);
|
|
|
|
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view2));
|
|
gtk_text_buffer_get_start_iter (buffer, &iter);
|
|
gtk_text_buffer_begin_irreversible_action (buffer);
|
|
gtk_text_buffer_insert (buffer, &iter, markup, -1);
|
|
gtk_text_buffer_end_irreversible_action (buffer);
|
|
|
|
g_bytes_unref (bytes);
|
|
|
|
gtk_widget_show (stack);
|
|
}
|
|
|
|
if (!gtk_widget_get_visible (window))
|
|
gtk_widget_show (window);
|
|
else
|
|
gtk_window_destroy (GTK_WINDOW (window));
|
|
|
|
return window;
|
|
}
|