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gtk2/tests/testtext.c
Owen Taylor f9d1107b60 Use octal escapes rather than literal UTF-8. 
Fri Dec  6 19:00:59 2002  Owen Taylor  <otaylor@redhat.com>

        * demos/gtk-demo/testview.c tests/testgtk.c
        tests/testtext.c tests/testtextbuffer.c: Use
        octal escapes rather than literal UTF-8.
2002-12-07 00:03:34 +00:00

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#include <stdio.h>
#include <sys/stat.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "prop-editor.h"
typedef struct _Buffer Buffer;
typedef struct _View View;
static gint untitled_serial = 1;
GSList *active_window_stack = NULL;
struct _Buffer
{
gint refcount;
GtkTextBuffer *buffer;
char *filename;
gint untitled_serial;
GtkTextTag *invisible_tag;
GtkTextTag *not_editable_tag;
GtkTextTag *found_text_tag;
GtkTextTag *custom_tabs_tag;
GSList *color_tags;
guint color_cycle_timeout;
gdouble start_hue;
};
struct _View
{
GtkWidget *window;
GtkWidget *text_view;
GtkAccelGroup *accel_group;
GtkItemFactory *item_factory;
Buffer *buffer;
};
static void push_active_window (GtkWindow *window);
static void pop_active_window (void);
static GtkWindow *get_active_window (void);
static Buffer * create_buffer (void);
static gboolean check_buffer_saved (Buffer *buffer);
static gboolean save_buffer (Buffer *buffer);
static gboolean save_as_buffer (Buffer *buffer);
static char * buffer_pretty_name (Buffer *buffer);
static void buffer_filename_set (Buffer *buffer);
static void buffer_search_forward (Buffer *buffer,
const char *str,
View *view);
static void buffer_search_backward (Buffer *buffer,
const char *str,
View *view);
static void buffer_set_colors (Buffer *buffer,
gboolean enabled);
static void buffer_cycle_colors (Buffer *buffer);
static View *view_from_widget (GtkWidget *widget);
static View *create_view (Buffer *buffer);
static void check_close_view (View *view);
static void close_view (View *view);
static void view_set_title (View *view);
static void view_init_menus (View *view);
static void view_add_example_widgets (View *view);
GSList *buffers = NULL;
GSList *views = NULL;
static void
push_active_window (GtkWindow *window)
{
g_object_ref (window);
active_window_stack = g_slist_prepend (active_window_stack, window);
}
static void
pop_active_window (void)
{
g_object_unref (active_window_stack->data);
active_window_stack = g_slist_delete_link (active_window_stack, active_window_stack);
}
static GtkWindow *
get_active_window (void)
{
if (active_window_stack)
return active_window_stack->data;
else
return NULL;
}
/*
* Filesel utility function
*/
typedef gboolean (*FileselOKFunc) (const char *filename, gpointer data);
static void
filesel_ok_cb (GtkWidget *button, GtkWidget *filesel)
{
FileselOKFunc ok_func = (FileselOKFunc)g_object_get_data (G_OBJECT (filesel), "ok-func");
gpointer data = g_object_get_data (G_OBJECT (filesel), "ok-data");
gint *result = g_object_get_data (G_OBJECT (filesel), "ok-result");
gtk_widget_hide (filesel);
if ((*ok_func) (gtk_file_selection_get_filename (GTK_FILE_SELECTION (filesel)), data))
{
gtk_widget_destroy (filesel);
*result = TRUE;
}
else
gtk_widget_show (filesel);
}
gboolean
filesel_run (GtkWindow *parent,
const char *title,
const char *start_file,
FileselOKFunc func,
gpointer data)
{
GtkWidget *filesel = gtk_file_selection_new (title);
gboolean result = FALSE;
if (!parent)
parent = get_active_window ();
if (parent)
gtk_window_set_transient_for (GTK_WINDOW (filesel), parent);
if (start_file)
gtk_file_selection_set_filename (GTK_FILE_SELECTION (filesel), start_file);
g_object_set_data (G_OBJECT (filesel), "ok-func", func);
g_object_set_data (G_OBJECT (filesel), "ok-data", data);
g_object_set_data (G_OBJECT (filesel), "ok-result", &result);
g_signal_connect (GTK_FILE_SELECTION (filesel)->ok_button,
"clicked",
G_CALLBACK (filesel_ok_cb), filesel);
g_signal_connect_swapped (GTK_FILE_SELECTION (filesel)->cancel_button,
"clicked",
G_CALLBACK (gtk_widget_destroy), filesel);
g_signal_connect (filesel, "destroy",
G_CALLBACK (gtk_main_quit), NULL);
gtk_window_set_modal (GTK_WINDOW (filesel), TRUE);
gtk_widget_show (filesel);
gtk_main ();
return result;
}
/*
* MsgBox utility functions
*/
static void
msgbox_yes_cb (GtkWidget *widget, gboolean *result)
{
*result = 0;
gtk_object_destroy (GTK_OBJECT (gtk_widget_get_toplevel (widget)));
}
static void
msgbox_no_cb (GtkWidget *widget, gboolean *result)
{
*result = 1;
gtk_object_destroy (GTK_OBJECT (gtk_widget_get_toplevel (widget)));
}
static gboolean
msgbox_key_press_cb (GtkWidget *widget, GdkEventKey *event, gpointer data)
{
if (event->keyval == GDK_Escape)
{
g_signal_stop_emission_by_name (widget, "key_press_event");
gtk_object_destroy (GTK_OBJECT (widget));
return TRUE;
}
return FALSE;
}
/* Don't copy this example, it's all crack-smoking - you can just use
* GtkMessageDialog now
*/
gint
msgbox_run (GtkWindow *parent,
const char *message,
const char *yes_button,
const char *no_button,
const char *cancel_button,
gint default_index)
{
gboolean result = -1;
GtkWidget *dialog;
GtkWidget *button;
GtkWidget *label;
GtkWidget *vbox;
GtkWidget *button_box;
GtkWidget *separator;
g_return_val_if_fail (message != NULL, FALSE);
g_return_val_if_fail (default_index >= 0 && default_index <= 1, FALSE);
if (!parent)
parent = get_active_window ();
/* Create a dialog
*/
dialog = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
if (parent)
gtk_window_set_transient_for (GTK_WINDOW (dialog), parent);
gtk_window_set_position (GTK_WINDOW (dialog), GTK_WIN_POS_MOUSE);
/* Quit our recursive main loop when the dialog is destroyed.
*/
g_signal_connect (dialog, "destroy",
G_CALLBACK (gtk_main_quit), NULL);
/* Catch Escape key presses and have them destroy the dialog
*/
g_signal_connect (dialog, "key_press_event",
G_CALLBACK (msgbox_key_press_cb), NULL);
/* Fill in the contents of the widget
*/
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (dialog), vbox);
label = gtk_label_new (message);
gtk_misc_set_padding (GTK_MISC (label), 12, 12);
gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
gtk_box_pack_start (GTK_BOX (vbox), label, TRUE, TRUE, 0);
separator = gtk_hseparator_new ();
gtk_box_pack_start (GTK_BOX (vbox), separator, FALSE, FALSE, 0);
button_box = gtk_hbutton_box_new ();
gtk_box_pack_start (GTK_BOX (vbox), button_box, FALSE, FALSE, 0);
gtk_container_set_border_width (GTK_CONTAINER (button_box), 8);
/* When Yes is clicked, call the msgbox_yes_cb
* This sets the result variable and destroys the dialog
*/
if (yes_button)
{
button = gtk_button_new_with_label (yes_button);
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_container_add (GTK_CONTAINER (button_box), button);
if (default_index == 0)
gtk_widget_grab_default (button);
g_signal_connect (button, "clicked",
G_CALLBACK (msgbox_yes_cb), &result);
}
/* When No is clicked, call the msgbox_no_cb
* This sets the result variable and destroys the dialog
*/
if (no_button)
{
button = gtk_button_new_with_label (no_button);
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_container_add (GTK_CONTAINER (button_box), button);
if (default_index == 0)
gtk_widget_grab_default (button);
g_signal_connect (button, "clicked",
G_CALLBACK (msgbox_no_cb), &result);
}
/* When Cancel is clicked, destroy the dialog
*/
if (cancel_button)
{
button = gtk_button_new_with_label (cancel_button);
GTK_WIDGET_SET_FLAGS (button, GTK_CAN_DEFAULT);
gtk_container_add (GTK_CONTAINER (button_box), button);
if (default_index == 1)
gtk_widget_grab_default (button);
g_signal_connect_swapped (button, "clicked",
G_CALLBACK (gtk_object_destroy), dialog);
}
gtk_widget_show_all (dialog);
/* Run a recursive main loop until a button is clicked
* or the user destroys the dialog through the window mananger */
gtk_main ();
return result;
}
#ifdef DO_BLINK
/*
* Example buffer filling code
*/
static gint
blink_timeout (gpointer data)
{
GtkTextTag *tag;
static gboolean flip = FALSE;
tag = GTK_TEXT_TAG (data);
g_object_set (G_OBJECT (tag),
"foreground", flip ? "blue" : "purple",
NULL);
flip = !flip;
return TRUE;
}
#endif
static gint
tag_event_handler (GtkTextTag *tag, GtkWidget *widget, GdkEvent *event,
const GtkTextIter *iter, gpointer user_data)
{
gint char_index;
char_index = gtk_text_iter_get_offset (iter);
switch (event->type)
{
case GDK_MOTION_NOTIFY:
printf ("Motion event at char %d tag `%s'\n",
char_index, tag->name);
break;
case GDK_BUTTON_PRESS:
printf ("Button press at char %d tag `%s'\n",
char_index, tag->name);
break;
case GDK_2BUTTON_PRESS:
printf ("Double click at char %d tag `%s'\n",
char_index, tag->name);
break;
case GDK_3BUTTON_PRESS:
printf ("Triple click at char %d tag `%s'\n",
char_index, tag->name);
break;
case GDK_BUTTON_RELEASE:
printf ("Button release at char %d tag `%s'\n",
char_index, tag->name);
break;
case GDK_KEY_PRESS:
case GDK_KEY_RELEASE:
printf ("Key event at char %d tag `%s'\n",
char_index, tag->name);
break;
case GDK_ENTER_NOTIFY:
case GDK_LEAVE_NOTIFY:
case GDK_PROPERTY_NOTIFY:
case GDK_SELECTION_CLEAR:
case GDK_SELECTION_REQUEST:
case GDK_SELECTION_NOTIFY:
case GDK_PROXIMITY_IN:
case GDK_PROXIMITY_OUT:
case GDK_DRAG_ENTER:
case GDK_DRAG_LEAVE:
case GDK_DRAG_MOTION:
case GDK_DRAG_STATUS:
case GDK_DROP_START:
case GDK_DROP_FINISHED:
default:
break;
}
return FALSE;
}
static void
setup_tag (GtkTextTag *tag)
{
g_signal_connect (tag,
"event",
G_CALLBACK (tag_event_handler),
NULL);
}
static const char *book_closed_xpm[] = {
"16 16 6 1",
" c None s None",
". c black",
"X c red",
"o c yellow",
"O c #808080",
"# c white",
" ",
" .. ",
" ..XX. ",
" ..XXXXX. ",
" ..XXXXXXXX. ",
".ooXXXXXXXXX. ",
"..ooXXXXXXXXX. ",
".X.ooXXXXXXXXX. ",
".XX.ooXXXXXX.. ",
" .XX.ooXXX..#O ",
" .XX.oo..##OO. ",
" .XX..##OO.. ",
" .X.#OO.. ",
" ..O.. ",
" .. ",
" "};
void
fill_example_buffer (GtkTextBuffer *buffer)
{
GtkTextIter iter, iter2;
GtkTextTag *tag;
GtkTextChildAnchor *anchor;
GdkColor color;
GdkColor color2;
GdkPixbuf *pixbuf;
int i;
char *str;
/* FIXME this is broken if called twice on a buffer, since
* we try to create tags a second time.
*/
tag = gtk_text_buffer_create_tag (buffer, "fg_blue", NULL);
#ifdef DO_BLINK
gtk_timeout_add (1000, blink_timeout, tag);
#endif
setup_tag (tag);
color.red = color.green = 0;
color.blue = 0xffff;
color2.red = 0xfff;
color2.blue = 0x0;
color2.green = 0;
g_object_set (G_OBJECT (tag),
"foreground_gdk", &color,
"background_gdk", &color2,
"size_points", 24.0,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "fg_red", NULL);
setup_tag (tag);
color.blue = color.green = 0;
color.red = 0xffff;
g_object_set (G_OBJECT (tag),
"rise", -4 * PANGO_SCALE,
"foreground_gdk", &color,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "bg_green", NULL);
setup_tag (tag);
color.blue = color.red = 0;
color.green = 0xffff;
g_object_set (G_OBJECT (tag),
"background_gdk", &color,
"size_points", 10.0,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "strikethrough", NULL);
setup_tag (tag);
g_object_set (G_OBJECT (tag),
"strikethrough", TRUE,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "underline", NULL);
setup_tag (tag);
g_object_set (G_OBJECT (tag),
"underline", PANGO_UNDERLINE_SINGLE,
NULL);
setup_tag (tag);
g_object_set (G_OBJECT (tag),
"underline", PANGO_UNDERLINE_SINGLE,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "centered", NULL);
g_object_set (G_OBJECT (tag),
"justification", GTK_JUSTIFY_CENTER,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "rtl_quote", NULL);
g_object_set (G_OBJECT (tag),
"wrap_mode", GTK_WRAP_WORD,
"direction", GTK_TEXT_DIR_RTL,
"indent", 30,
"left_margin", 20,
"right_margin", 20,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "negative_indent", NULL);
g_object_set (G_OBJECT (tag),
"indent", -25,
NULL);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
anchor = gtk_text_buffer_create_child_anchor (buffer, &iter);
g_object_ref (anchor);
g_object_set_data_full (G_OBJECT (buffer), "anchor", anchor,
(GDestroyNotify) g_object_unref);
pixbuf = gdk_pixbuf_new_from_xpm_data (book_closed_xpm);
i = 0;
while (i < 100)
{
GtkTextMark * temp_mark;
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
gtk_text_buffer_insert_pixbuf (buffer, &iter, pixbuf);
str = g_strdup_printf ("%d Hello World! blah blah blah blah blah blah blah blah blah blah blah blah\nwoo woo woo woo woo woo woo woo woo woo woo woo woo woo woo\n",
i);
gtk_text_buffer_insert (buffer, &iter, str, -1);
g_free (str);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter, 0, 5);
gtk_text_buffer_insert (buffer, &iter,
"(Hello World!)\nfoo foo Hello this is some text we are using to text word wrap. It has punctuation! gee; blah - hmm, great.\nnew line with a significant quantity of text on it. This line really does contain some text. More text! More text! More text!\n"
/* This is UTF8 stuff, Emacs doesn't
really know how to display it */
"German (Deutsch S\303\274d) Gr\303\274\303\237 Gott Greek (\316\225\316\273\316\273\316\267\316\275\316\271\316\272\316\254) \316\223\316\265\316\271\316\254 \317\203\316\261\317\202 Hebrew(\327\251\327\234\327\225\327\235) Hebrew punctuation(\xd6\xbf\327\251\xd6\xbb\xd6\xbc\xd6\xbb\xd6\xbf\327\234\xd6\xbc\327\225\xd6\xbc\xd6\xbb\xd6\xbb\xd6\xbf\327\235\xd6\xbc\xd6\xbb\xd6\xbf) Japanese (\346\227\245\346\234\254\350\252\236) Thai (\340\270\252\340\270\247\340\270\261\340\270\252\340\270\224\340\270\265\340\270\204\340\270\243\340\270\261\340\270\232) Thai wrong spelling (\340\270\204\340\270\263\340\270\225\340\271\210\340\270\255\340\271\204\340\270\233\340\270\231\340\270\267\340\271\210\340\270\252\340\270\260\340\270\201\340\270\224\340\270\234\340\270\264\340\270\224 \340\270\236\340\270\261\340\270\261\340\271\211\340\270\261\340\270\261\340\271\210\340\270\207\340\271\202\340\270\201\340\270\260)\n", -1);
temp_mark =
gtk_text_buffer_create_mark (buffer, "tmp_mark", &iter, TRUE);
#if 1
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter, 0, 6);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter2, 0, 13);
gtk_text_buffer_apply_tag_by_name (buffer, "fg_blue", &iter, &iter2);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter, 1, 10);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter2, 1, 16);
gtk_text_buffer_apply_tag_by_name (buffer, "underline", &iter, &iter2);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter, 1, 14);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter2, 1, 24);
gtk_text_buffer_apply_tag_by_name (buffer, "strikethrough", &iter, &iter2);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter, 0, 9);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter2, 0, 16);
gtk_text_buffer_apply_tag_by_name (buffer, "bg_green", &iter, &iter2);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter, 4, 2);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter2, 4, 10);
gtk_text_buffer_apply_tag_by_name (buffer, "bg_green", &iter, &iter2);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter, 4, 8);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter2, 4, 15);
gtk_text_buffer_apply_tag_by_name (buffer, "fg_red", &iter, &iter2);
#endif
gtk_text_buffer_get_iter_at_mark (buffer, &iter, temp_mark);
gtk_text_buffer_insert (buffer, &iter, "Centered text!\n", -1);
gtk_text_buffer_get_iter_at_mark (buffer, &iter2, temp_mark);
gtk_text_buffer_apply_tag_by_name (buffer, "centered", &iter2, &iter);
gtk_text_buffer_move_mark (buffer, temp_mark, &iter);
gtk_text_buffer_insert (buffer, &iter, "Word wrapped, Right-to-left Quote\n", -1);
gtk_text_buffer_insert (buffer, &iter, "\331\210\331\202\330\257 \330\250\330\257\330\243 \330\253\331\204\330\247\330\253 \331\205\331\206 \330\243\331\203\330\253\330\261 \330\247\331\204\331\205\330\244\330\263\330\263\330\247\330\252 \330\252\331\202\330\257\331\205\330\247 \331\201\331\212 \330\264\330\250\331\203\330\251 \330\247\331\203\330\263\331\212\331\210\331\206 \330\250\330\261\330\247\331\205\330\254\331\207\330\247 \331\203\331\205\331\206\330\270\331\205\330\247\330\252 \331\204\330\247 \330\252\330\263\330\271\331\211 \331\204\331\204\330\261\330\250\330\255\330\214 \330\253\331\205 \330\252\330\255\331\210\331\204\330\252 \331\201\331\212 \330\247\331\204\330\263\331\206\331\210\330\247\330\252 \330\247\331\204\330\256\331\205\330\263 \330\247\331\204\331\205\330\247\330\266\331\212\330\251 \330\245\331\204\331\211 \331\205\330\244\330\263\330\263\330\247\330\252 \331\205\330\247\331\204\331\212\330\251 \331\205\331\206\330\270\331\205\330\251\330\214 \331\210\330\250\330\247\330\252\330\252 \330\254\330\262\330\241\330\247 \331\205\331\206 \330\247\331\204\331\206\330\270\330\247\331\205 \330\247\331\204\331\205\330\247\331\204\331\212 \331\201\331\212 \330\250\331\204\330\257\330\247\331\206\331\207\330\247\330\214 \331\210\331\204\331\203\331\206\331\207\330\247 \330\252\330\252\330\256\330\265\330\265 \331\201\331\212 \330\256\330\257\331\205\330\251 \331\202\330\267\330\247\330\271 \330\247\331\204\331\205\330\264\330\261\331\210\330\271\330\247\330\252 \330\247\331\204\330\265\330\272\331\212\330\261\330\251. \331\210\330\243\330\255\330\257 \330\243\331\203\330\253\330\261 \331\207\330\260\331\207 \330\247\331\204\331\205\330\244\330\263\330\263\330\247\330\252 \331\206\330\254\330\247\330\255\330\247 \331\207\331\210 \302\273\330\250\330\247\331\206\331\203\331\210\330\263\331\210\331\204\302\253 \331\201\331\212 \330\250\331\210\331\204\331\212\331\201\331\212\330\247.\n", -1);
gtk_text_buffer_get_iter_at_mark (buffer, &iter2, temp_mark);
gtk_text_buffer_apply_tag_by_name (buffer, "rtl_quote", &iter2, &iter);
gtk_text_buffer_insert_with_tags (buffer, &iter,
"Paragraph with negative indentation. blah blah blah blah blah. The quick brown fox jumped over the lazy dog.\n",
-1,
gtk_text_tag_table_lookup (gtk_text_buffer_get_tag_table (buffer),
"negative_indent"),
NULL);
++i;
}
g_object_unref (pixbuf);
printf ("%d lines %d chars\n",
gtk_text_buffer_get_line_count (buffer),
gtk_text_buffer_get_char_count (buffer));
/* Move cursor to start */
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
gtk_text_buffer_place_cursor (buffer, &iter);
gtk_text_buffer_set_modified (buffer, FALSE);
}
gboolean
fill_file_buffer (GtkTextBuffer *buffer, const char *filename)
{
FILE* f;
gchar buf[2048];
gint remaining = 0;
GtkTextIter iter, end;
f = fopen (filename, "r");
if (f == NULL)
{
gchar *err = g_strdup_printf ("Cannot open file '%s': %s",
filename, g_strerror (errno));
msgbox_run (NULL, err, "OK", NULL, NULL, 0);
g_free (err);
return FALSE;
}
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
while (!feof (f))
{
gint count;
const char *leftover;
int to_read = 2047 - remaining;
count = fread (buf + remaining, 1, to_read, f);
buf[count + remaining] = '\0';
g_utf8_validate (buf, count + remaining, &leftover);
g_assert (g_utf8_validate (buf, leftover - buf, NULL));
gtk_text_buffer_insert (buffer, &iter, buf, leftover - buf);
remaining = (buf + remaining + count) - leftover;
g_memmove (buf, leftover, remaining);
if (remaining > 6 || count < to_read)
break;
}
if (remaining)
{
gchar *err = g_strdup_printf ("Invalid UTF-8 data encountered reading file '%s'", filename);
msgbox_run (NULL, err, "OK", NULL, NULL, 0);
g_free (err);
}
/* We had a newline in the buffer to begin with. (The buffer always contains
* a newline, so we delete to the end of the buffer to clean up.
*/
gtk_text_buffer_get_end_iter (buffer, &end);
gtk_text_buffer_delete (buffer, &iter, &end);
gtk_text_buffer_set_modified (buffer, FALSE);
return TRUE;
}
static gint
delete_event_cb (GtkWidget *window, GdkEventAny *event, gpointer data)
{
View *view = view_from_widget (window);
push_active_window (GTK_WINDOW (window));
check_close_view (view);
pop_active_window ();
return TRUE;
}
/*
* Menu callbacks
*/
static View *
get_empty_view (View *view)
{
if (!view->buffer->filename &&
!gtk_text_buffer_get_modified (view->buffer->buffer))
return view;
else
return create_view (create_buffer ());
}
static View *
view_from_widget (GtkWidget *widget)
{
if (GTK_IS_MENU_ITEM (widget))
{
GtkItemFactory *item_factory = gtk_item_factory_from_widget (widget);
return g_object_get_data (G_OBJECT (item_factory), "view");
}
else
{
GtkWidget *app = gtk_widget_get_toplevel (widget);
return g_object_get_data (G_OBJECT (app), "view");
}
}
static void
do_new (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
create_view (create_buffer ());
}
static void
do_new_view (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
create_view (view->buffer);
}
gboolean
open_ok_func (const char *filename, gpointer data)
{
View *view = data;
View *new_view = get_empty_view (view);
if (!fill_file_buffer (new_view->buffer->buffer, filename))
{
if (new_view != view)
close_view (new_view);
return FALSE;
}
else
{
g_free (new_view->buffer->filename);
new_view->buffer->filename = g_strdup (filename);
buffer_filename_set (new_view->buffer);
return TRUE;
}
}
static void
do_open (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
push_active_window (GTK_WINDOW (view->window));
filesel_run (NULL, "Open File", NULL, open_ok_func, view);
pop_active_window ();
}
static void
do_save_as (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
push_active_window (GTK_WINDOW (view->window));
save_as_buffer (view->buffer);
pop_active_window ();
}
static void
do_save (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
push_active_window (GTK_WINDOW (view->window));
if (!view->buffer->filename)
do_save_as (callback_data, callback_action, widget);
else
save_buffer (view->buffer);
pop_active_window ();
}
static void
do_close (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
push_active_window (GTK_WINDOW (view->window));
check_close_view (view);
pop_active_window ();
}
static void
do_exit (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
GSList *tmp_list = buffers;
push_active_window (GTK_WINDOW (view->window));
while (tmp_list)
{
if (!check_buffer_saved (tmp_list->data))
return;
tmp_list = tmp_list->next;
}
gtk_main_quit ();
pop_active_window ();
}
static void
do_example (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
View *new_view;
new_view = get_empty_view (view);
fill_example_buffer (new_view->buffer->buffer);
view_add_example_widgets (new_view);
}
static void
do_insert_and_scroll (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
GtkTextBuffer *buffer;
GtkTextIter start, end;
GtkTextMark *mark;
buffer = view->buffer->buffer;
gtk_text_buffer_get_bounds (buffer, &start, &end);
mark = gtk_text_buffer_create_mark (buffer, NULL, &end, /* right grav */ FALSE);
gtk_text_buffer_insert (buffer, &end,
"Hello this is multiple lines of text\n"
"Line 1\n" "Line 2\n"
"Line 3\n" "Line 4\n"
"Line 5\n",
-1);
gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view->text_view), mark,
0, TRUE, 0.0, 1.0);
gtk_text_buffer_delete_mark (buffer, mark);
}
static void
do_wrap_changed (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view->text_view), callback_action);
}
static void
do_direction_changed (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
gtk_widget_set_direction (view->text_view, callback_action);
gtk_widget_queue_resize (view->text_view);
}
static void
do_spacing_changed (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
if (callback_action)
{
gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (view->text_view),
23);
gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (view->text_view),
21);
gtk_text_view_set_pixels_inside_wrap (GTK_TEXT_VIEW (view->text_view),
9);
}
else
{
gtk_text_view_set_pixels_above_lines (GTK_TEXT_VIEW (view->text_view),
0);
gtk_text_view_set_pixels_below_lines (GTK_TEXT_VIEW (view->text_view),
0);
gtk_text_view_set_pixels_inside_wrap (GTK_TEXT_VIEW (view->text_view),
0);
}
}
static void
do_editable_changed (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
gtk_text_view_set_editable (GTK_TEXT_VIEW (view->text_view), callback_action);
}
static void
do_cursor_visible_changed (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (view->text_view), callback_action);
}
static void
do_color_cycle_changed (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
buffer_set_colors (view->buffer, callback_action);
}
static void
do_apply_editable (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
GtkTextIter start;
GtkTextIter end;
if (gtk_text_buffer_get_selection_bounds (view->buffer->buffer,
&start, &end))
{
if (callback_action)
{
gtk_text_buffer_remove_tag (view->buffer->buffer,
view->buffer->not_editable_tag,
&start, &end);
}
else
{
gtk_text_buffer_apply_tag (view->buffer->buffer,
view->buffer->not_editable_tag,
&start, &end);
}
}
}
static void
do_apply_invisible (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
GtkTextIter start;
GtkTextIter end;
if (gtk_text_buffer_get_selection_bounds (view->buffer->buffer,
&start, &end))
{
if (callback_action)
{
gtk_text_buffer_remove_tag (view->buffer->buffer,
view->buffer->invisible_tag,
&start, &end);
}
else
{
gtk_text_buffer_apply_tag (view->buffer->buffer,
view->buffer->invisible_tag,
&start, &end);
}
}
}
static void
do_apply_tabs (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
GtkTextIter start;
GtkTextIter end;
if (gtk_text_buffer_get_selection_bounds (view->buffer->buffer,
&start, &end))
{
if (callback_action)
{
gtk_text_buffer_remove_tag (view->buffer->buffer,
view->buffer->custom_tabs_tag,
&start, &end);
}
else
{
gtk_text_buffer_apply_tag (view->buffer->buffer,
view->buffer->custom_tabs_tag,
&start, &end);
}
}
}
static void
do_apply_colors (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
Buffer *buffer = view->buffer;
GtkTextIter start;
GtkTextIter end;
if (gtk_text_buffer_get_selection_bounds (view->buffer->buffer,
&start, &end))
{
if (!callback_action)
{
GSList *tmp;
tmp = buffer->color_tags;
while (tmp != NULL)
{
gtk_text_buffer_remove_tag (view->buffer->buffer,
tmp->data,
&start, &end);
tmp = g_slist_next (tmp);
}
}
else
{
GSList *tmp;
tmp = buffer->color_tags;
while (TRUE)
{
GtkTextIter next;
gboolean done = FALSE;
next = start;
gtk_text_iter_forward_char (&next);
gtk_text_iter_forward_char (&next);
if (gtk_text_iter_compare (&next, &end) >= 0)
{
next = end;
done = TRUE;
}
gtk_text_buffer_apply_tag (view->buffer->buffer,
tmp->data,
&start, &next);
start = next;
if (done)
return;
tmp = g_slist_next (tmp);
if (tmp == NULL)
tmp = buffer->color_tags;
}
}
}
}
static void
do_remove_tags (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
GtkTextIter start;
GtkTextIter end;
if (gtk_text_buffer_get_selection_bounds (view->buffer->buffer,
&start, &end))
{
gtk_text_buffer_remove_all_tags (view->buffer->buffer,
&start, &end);
}
}
static void
do_properties (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
create_prop_editor (G_OBJECT (view->text_view), 0);
}
enum
{
RESPONSE_FORWARD,
RESPONSE_BACKWARD
};
static void
dialog_response_callback (GtkWidget *dialog, gint response_id, gpointer data)
{
GtkTextBuffer *buffer;
View *view = data;
GtkTextIter start, end;
gchar *search_string;
if (response_id != RESPONSE_FORWARD &&
response_id != RESPONSE_BACKWARD)
{
gtk_widget_destroy (dialog);
return;
}
buffer = g_object_get_data (G_OBJECT (dialog), "buffer");
gtk_text_buffer_get_bounds (buffer, &start, &end);
search_string = gtk_text_iter_get_text (&start, &end);
g_print ("Searching for `%s'\n", search_string);
if (response_id == RESPONSE_FORWARD)
buffer_search_forward (view->buffer, search_string, view);
else if (response_id == RESPONSE_BACKWARD)
buffer_search_backward (view->buffer, search_string, view);
g_free (search_string);
gtk_widget_destroy (dialog);
}
static void
do_search (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
GtkWidget *dialog;
GtkWidget *search_text;
GtkTextBuffer *buffer;
dialog = gtk_dialog_new_with_buttons ("Search",
GTK_WINDOW (view->window),
GTK_DIALOG_DESTROY_WITH_PARENT,
"Forward", RESPONSE_FORWARD,
"Backward", RESPONSE_BACKWARD,
GTK_STOCK_CANCEL,
GTK_RESPONSE_NONE, NULL);
buffer = gtk_text_buffer_new (NULL);
search_text = gtk_text_view_new_with_buffer (buffer);
g_object_unref (buffer);
gtk_box_pack_end (GTK_BOX (GTK_DIALOG (dialog)->vbox),
search_text,
TRUE, TRUE, 0);
g_object_set_data (G_OBJECT (dialog), "buffer", buffer);
g_signal_connect (dialog,
"response",
G_CALLBACK (dialog_response_callback),
view);
gtk_widget_show (search_text);
gtk_widget_grab_focus (search_text);
gtk_widget_show_all (dialog);
}
typedef struct
{
/* position is in coordinate system of text_view_move_child */
int click_x;
int click_y;
int start_x;
int start_y;
int button;
} ChildMoveInfo;
static gboolean
movable_child_callback (GtkWidget *child,
GdkEvent *event,
gpointer data)
{
ChildMoveInfo *info;
GtkTextView *text_view;
text_view = GTK_TEXT_VIEW (data);
g_return_val_if_fail (GTK_IS_EVENT_BOX (child), FALSE);
g_return_val_if_fail (gtk_widget_get_parent (child) == GTK_WIDGET (text_view), FALSE);
info = g_object_get_data (G_OBJECT (child),
"testtext-move-info");
if (info == NULL)
{
info = g_new (ChildMoveInfo, 1);
info->start_x = -1;
info->start_y = -1;
info->button = -1;
g_object_set_data_full (G_OBJECT (child),
"testtext-move-info",
info,
g_free);
}
switch (event->type)
{
case GDK_BUTTON_PRESS:
if (info->button < 0)
{
if (gdk_pointer_grab (event->button.window,
FALSE,
GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON_RELEASE_MASK,
NULL,
NULL,
event->button.time) != GDK_GRAB_SUCCESS)
return FALSE;
info->button = event->button.button;
info->start_x = child->allocation.x;
info->start_y = child->allocation.y;
info->click_x = child->allocation.x + event->button.x;
info->click_y = child->allocation.y + event->button.y;
}
break;
case GDK_BUTTON_RELEASE:
if (info->button < 0)
return FALSE;
if (info->button == event->button.button)
{
int x, y;
gdk_pointer_ungrab (event->button.time);
info->button = -1;
/* convert to window coords from event box coords */
x = info->start_x + (event->button.x + child->allocation.x - info->click_x);
y = info->start_y + (event->button.y + child->allocation.y - info->click_y);
gtk_text_view_move_child (text_view,
child,
x, y);
}
break;
case GDK_MOTION_NOTIFY:
{
int x, y;
if (info->button < 0)
return FALSE;
gdk_window_get_pointer (child->window, &x, &y, NULL); /* ensure more events */
/* to window coords from event box coords */
x += child->allocation.x;
y += child->allocation.y;
x = info->start_x + (x - info->click_x);
y = info->start_y + (y - info->click_y);
gtk_text_view_move_child (text_view,
child,
x, y);
}
break;
default:
break;
}
return FALSE;
}
static void
add_movable_child (GtkTextView *text_view,
GtkTextWindowType window)
{
GtkWidget *event_box;
GtkWidget *label;
GdkColor color;
label = gtk_label_new ("Drag me around");
event_box = gtk_event_box_new ();
gtk_widget_add_events (event_box,
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK);
color.red = 0xffff;
color.green = color.blue = 0;
gtk_widget_modify_bg (event_box, GTK_STATE_NORMAL, &color);
gtk_container_add (GTK_CONTAINER (event_box), label);
gtk_widget_show_all (event_box);
g_signal_connect (event_box, "event",
G_CALLBACK (movable_child_callback),
text_view);
gtk_text_view_add_child_in_window (text_view,
event_box,
window,
0, 0);
}
static void
do_add_children (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
add_movable_child (GTK_TEXT_VIEW (view->text_view),
GTK_TEXT_WINDOW_WIDGET);
add_movable_child (GTK_TEXT_VIEW (view->text_view),
GTK_TEXT_WINDOW_LEFT);
add_movable_child (GTK_TEXT_VIEW (view->text_view),
GTK_TEXT_WINDOW_RIGHT);
}
static void
do_add_focus_children (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
GtkWidget *child;
GtkTextChildAnchor *anchor;
GtkTextIter iter;
GtkTextView *text_view;
text_view = GTK_TEXT_VIEW (view->text_view);
child = gtk_button_new_with_mnemonic ("Button _A in widget->window");
gtk_text_view_add_child_in_window (text_view,
child,
GTK_TEXT_WINDOW_WIDGET,
200, 200);
child = gtk_button_new_with_mnemonic ("Button _B in widget->window");
gtk_text_view_add_child_in_window (text_view,
child,
GTK_TEXT_WINDOW_WIDGET,
350, 300);
child = gtk_button_new_with_mnemonic ("Button _C in left window");
gtk_text_view_add_child_in_window (text_view,
child,
GTK_TEXT_WINDOW_LEFT,
0, 0);
child = gtk_button_new_with_mnemonic ("Button _D in right window");
gtk_text_view_add_child_in_window (text_view,
child,
GTK_TEXT_WINDOW_RIGHT,
0, 0);
gtk_text_buffer_get_start_iter (view->buffer->buffer, &iter);
anchor = gtk_text_buffer_create_child_anchor (view->buffer->buffer, &iter);
child = gtk_button_new_with_mnemonic ("Button _E in buffer");
gtk_text_view_add_child_at_anchor (text_view, child, anchor);
anchor = gtk_text_buffer_create_child_anchor (view->buffer->buffer, &iter);
child = gtk_button_new_with_mnemonic ("Button _F in buffer");
gtk_text_view_add_child_at_anchor (text_view, child, anchor);
anchor = gtk_text_buffer_create_child_anchor (view->buffer->buffer, &iter);
child = gtk_button_new_with_mnemonic ("Button _G in buffer");
gtk_text_view_add_child_at_anchor (text_view, child, anchor);
/* show all the buttons */
gtk_widget_show_all (view->text_view);
}
static void
view_init_menus (View *view)
{
GtkTextDirection direction = gtk_widget_get_direction (view->text_view);
GtkWrapMode wrap_mode = gtk_text_view_get_wrap_mode (GTK_TEXT_VIEW (view->text_view));
GtkWidget *menu_item = NULL;
switch (direction)
{
case GTK_TEXT_DIR_LTR:
menu_item = gtk_item_factory_get_widget (view->item_factory, "/Settings/Left-to-Right");
break;
case GTK_TEXT_DIR_RTL:
menu_item = gtk_item_factory_get_widget (view->item_factory, "/Settings/Right-to-Left");
break;
default:
break;
}
if (menu_item)
gtk_menu_item_activate (GTK_MENU_ITEM (menu_item));
switch (wrap_mode)
{
case GTK_WRAP_NONE:
menu_item = gtk_item_factory_get_widget (view->item_factory, "/Settings/Wrap Off");
break;
case GTK_WRAP_WORD:
menu_item = gtk_item_factory_get_widget (view->item_factory, "/Settings/Wrap Words");
break;
case GTK_WRAP_CHAR:
menu_item = gtk_item_factory_get_widget (view->item_factory, "/Settings/Wrap Chars");
break;
default:
break;
}
if (menu_item)
gtk_menu_item_activate (GTK_MENU_ITEM (menu_item));
}
static GtkItemFactoryEntry menu_items[] =
{
{ "/_File", NULL, 0, 0, "<Branch>" },
{ "/File/_New", "<control>N", do_new, 0, NULL },
{ "/File/New _View", NULL, do_new_view, 0, NULL },
{ "/File/_Open", "<control>O", do_open, 0, NULL },
{ "/File/_Save", "<control>S", do_save, 0, NULL },
{ "/File/Save _As...", NULL, do_save_as, 0, NULL },
{ "/File/sep1", NULL, 0, 0, "<Separator>" },
{ "/File/_Close", "<control>W" , do_close, 0, NULL },
{ "/File/E_xit", "<control>Q" , do_exit, 0, NULL },
{ "/_Edit", NULL, 0, 0, "<Branch>" },
{ "/Edit/Find...", NULL, do_search, 0, NULL },
{ "/_Settings", NULL, 0, 0, "<Branch>" },
{ "/Settings/Wrap _Off", NULL, do_wrap_changed, GTK_WRAP_NONE, "<RadioItem>" },
{ "/Settings/Wrap _Words", NULL, do_wrap_changed, GTK_WRAP_WORD, "/Settings/Wrap Off" },
{ "/Settings/Wrap _Chars", NULL, do_wrap_changed, GTK_WRAP_CHAR, "/Settings/Wrap Off" },
{ "/Settings/sep1", NULL, 0, 0, "<Separator>" },
{ "/Settings/Editable", NULL, do_editable_changed, TRUE, "<RadioItem>" },
{ "/Settings/Not editable", NULL, do_editable_changed, FALSE, "/Settings/Editable" },
{ "/Settings/sep1", NULL, 0, 0, "<Separator>" },
{ "/Settings/Cursor visible", NULL, do_cursor_visible_changed, TRUE, "<RadioItem>" },
{ "/Settings/Cursor not visible", NULL, do_cursor_visible_changed, FALSE, "/Settings/Cursor visible" },
{ "/Settings/sep1", NULL, 0, 0, "<Separator>" },
{ "/Settings/Left-to-Right", NULL, do_direction_changed, GTK_TEXT_DIR_LTR, "<RadioItem>" },
{ "/Settings/Right-to-Left", NULL, do_direction_changed, GTK_TEXT_DIR_RTL, "/Settings/Left-to-Right" },
{ "/Settings/sep1", NULL, 0, 0, "<Separator>" },
{ "/Settings/Sane spacing", NULL, do_spacing_changed, FALSE, "<RadioItem>" },
{ "/Settings/Funky spacing", NULL, do_spacing_changed, TRUE, "/Settings/Sane spacing" },
{ "/Settings/sep1", NULL, 0, 0, "<Separator>" },
{ "/Settings/Don't cycle color tags", NULL, do_color_cycle_changed, FALSE, "<RadioItem>" },
{ "/Settings/Cycle colors", NULL, do_color_cycle_changed, TRUE, "/Settings/Don't cycle color tags" },
{ "/_Attributes", NULL, 0, 0, "<Branch>" },
{ "/Attributes/Editable", NULL, do_apply_editable, TRUE, NULL },
{ "/Attributes/Not editable", NULL, do_apply_editable, FALSE, NULL },
{ "/Attributes/Invisible", NULL, do_apply_invisible, FALSE, NULL },
{ "/Attributes/Visible", NULL, do_apply_invisible, TRUE, NULL },
{ "/Attributes/Custom tabs", NULL, do_apply_tabs, FALSE, NULL },
{ "/Attributes/Default tabs", NULL, do_apply_tabs, TRUE, NULL },
{ "/Attributes/Color cycles", NULL, do_apply_colors, TRUE, NULL },
{ "/Attributes/No colors", NULL, do_apply_colors, FALSE, NULL },
{ "/Attributes/Remove all tags", NULL, do_remove_tags, 0, NULL },
{ "/Attributes/Properties", NULL, do_properties, 0, NULL },
{ "/_Test", NULL, 0, 0, "<Branch>" },
{ "/Test/_Example", NULL, do_example, 0, NULL },
{ "/Test/_Insert and scroll", NULL, do_insert_and_scroll, 0, NULL },
{ "/Test/_Add fixed children", NULL, do_add_children, 0, NULL },
{ "/Test/A_dd focusable children", NULL, do_add_focus_children, 0, NULL },
};
static gboolean
save_buffer (Buffer *buffer)
{
GtkTextIter start, end;
gchar *chars;
gboolean result = FALSE;
gboolean have_backup = FALSE;
gchar *bak_filename;
FILE *file;
g_return_val_if_fail (buffer->filename != NULL, FALSE);
bak_filename = g_strconcat (buffer->filename, "~", NULL);
if (rename (buffer->filename, bak_filename) != 0)
{
if (errno != ENOENT)
{
gchar *err = g_strdup_printf ("Cannot back up '%s' to '%s': %s",
buffer->filename, bak_filename, g_strerror (errno));
msgbox_run (NULL, err, "OK", NULL, NULL, 0);
g_free (err);
return FALSE;
}
}
else
have_backup = TRUE;
file = fopen (buffer->filename, "w");
if (!file)
{
gchar *err = g_strdup_printf ("Cannot back up '%s' to '%s': %s",
buffer->filename, bak_filename, g_strerror (errno));
msgbox_run (NULL, err, "OK", NULL, NULL, 0);
}
else
{
gtk_text_buffer_get_iter_at_offset (buffer->buffer, &start, 0);
gtk_text_buffer_get_end_iter (buffer->buffer, &end);
chars = gtk_text_buffer_get_slice (buffer->buffer, &start, &end, FALSE);
if (fputs (chars, file) == EOF ||
fclose (file) == EOF)
{
gchar *err = g_strdup_printf ("Error writing to '%s': %s",
buffer->filename, g_strerror (errno));
msgbox_run (NULL, err, "OK", NULL, NULL, 0);
g_free (err);
}
else
{
/* Success
*/
result = TRUE;
gtk_text_buffer_set_modified (buffer->buffer, FALSE);
}
g_free (chars);
}
if (!result && have_backup)
{
if (rename (bak_filename, buffer->filename) != 0)
{
gchar *err = g_strdup_printf ("Error restoring backup file '%s' to '%s': %s\nBackup left as '%s'",
buffer->filename, bak_filename, g_strerror (errno), bak_filename);
msgbox_run (NULL, err, "OK", NULL, NULL, 0);
g_free (err);
}
}
g_free (bak_filename);
return result;
}
static gboolean
save_as_ok_func (const char *filename, gpointer data)
{
Buffer *buffer = data;
char *old_filename = buffer->filename;
if (!buffer->filename || strcmp (filename, buffer->filename) != 0)
{
struct stat statbuf;
if (stat (filename, &statbuf) == 0)
{
gchar *err = g_strdup_printf ("Ovewrite existing file '%s'?", filename);
gint result = msgbox_run (NULL, err, "Yes", "No", NULL, 1);
g_free (err);
if (result != 0)
return FALSE;
}
}
buffer->filename = g_strdup (filename);
if (save_buffer (buffer))
{
g_free (old_filename);
buffer_filename_set (buffer);
return TRUE;
}
else
{
g_free (buffer->filename);
buffer->filename = old_filename;
return FALSE;
}
}
static gboolean
save_as_buffer (Buffer *buffer)
{
return filesel_run (NULL, "Save File", NULL, save_as_ok_func, buffer);
}
static gboolean
check_buffer_saved (Buffer *buffer)
{
if (gtk_text_buffer_get_modified (buffer->buffer))
{
char *pretty_name = buffer_pretty_name (buffer);
char *msg = g_strdup_printf ("Save changes to '%s'?", pretty_name);
gint result;
g_free (pretty_name);
result = msgbox_run (NULL, msg, "Yes", "No", "Cancel", 0);
g_free (msg);
if (result == 0)
return save_as_buffer (buffer);
else if (result == 1)
return TRUE;
else
return FALSE;
}
else
return TRUE;
}
#define N_COLORS 16
static Buffer *
create_buffer (void)
{
Buffer *buffer;
PangoTabArray *tabs;
gint i;
buffer = g_new (Buffer, 1);
buffer->buffer = gtk_text_buffer_new (NULL);
buffer->refcount = 1;
buffer->filename = NULL;
buffer->untitled_serial = -1;
buffer->color_tags = NULL;
buffer->color_cycle_timeout = 0;
buffer->start_hue = 0.0;
i = 0;
while (i < N_COLORS)
{
GtkTextTag *tag;
tag = gtk_text_buffer_create_tag (buffer->buffer, NULL, NULL);
buffer->color_tags = g_slist_prepend (buffer->color_tags, tag);
++i;
}
#if 0
buffer->invisible_tag = gtk_text_buffer_create_tag (buffer->buffer, NULL,
"invisible", TRUE, NULL);
#endif
buffer->not_editable_tag =
gtk_text_buffer_create_tag (buffer->buffer, NULL,
"editable", FALSE,
"foreground", "purple", NULL);
buffer->found_text_tag = gtk_text_buffer_create_tag (buffer->buffer, NULL,
"foreground", "red", NULL);
tabs = pango_tab_array_new_with_positions (4,
TRUE,
PANGO_TAB_LEFT, 10,
PANGO_TAB_LEFT, 30,
PANGO_TAB_LEFT, 60,
PANGO_TAB_LEFT, 120);
buffer->custom_tabs_tag = gtk_text_buffer_create_tag (buffer->buffer, NULL,
"tabs", tabs,
"foreground", "green", NULL);
pango_tab_array_free (tabs);
buffers = g_slist_prepend (buffers, buffer);
return buffer;
}
static char *
buffer_pretty_name (Buffer *buffer)
{
if (buffer->filename)
{
char *p;
char *result = g_path_get_basename (buffer->filename);
p = strchr (result, '/');
if (p)
*p = '\0';
return result;
}
else
{
if (buffer->untitled_serial == -1)
buffer->untitled_serial = untitled_serial++;
if (buffer->untitled_serial == 1)
return g_strdup ("Untitled");
else
return g_strdup_printf ("Untitled #%d", buffer->untitled_serial);
}
}
static void
buffer_filename_set (Buffer *buffer)
{
GSList *tmp_list = views;
while (tmp_list)
{
View *view = tmp_list->data;
if (view->buffer == buffer)
view_set_title (view);
tmp_list = tmp_list->next;
}
}
static void
buffer_search (Buffer *buffer,
const char *str,
View *view,
gboolean forward)
{
GtkTextIter iter;
GtkTextIter start, end;
GtkWidget *dialog;
int i;
/* remove tag from whole buffer */
gtk_text_buffer_get_bounds (buffer->buffer, &start, &end);
gtk_text_buffer_remove_tag (buffer->buffer, buffer->found_text_tag,
&start, &end );
gtk_text_buffer_get_iter_at_mark (buffer->buffer, &iter,
gtk_text_buffer_get_mark (buffer->buffer,
"insert"));
i = 0;
if (*str != '\0')
{
GtkTextIter match_start, match_end;
if (forward)
{
while (gtk_text_iter_forward_search (&iter, str,
GTK_TEXT_SEARCH_VISIBLE_ONLY |
GTK_TEXT_SEARCH_TEXT_ONLY,
&match_start, &match_end,
NULL))
{
++i;
gtk_text_buffer_apply_tag (buffer->buffer, buffer->found_text_tag,
&match_start, &match_end);
iter = match_end;
}
}
else
{
while (gtk_text_iter_backward_search (&iter, str,
GTK_TEXT_SEARCH_VISIBLE_ONLY |
GTK_TEXT_SEARCH_TEXT_ONLY,
&match_start, &match_end,
NULL))
{
++i;
gtk_text_buffer_apply_tag (buffer->buffer, buffer->found_text_tag,
&match_start, &match_end);
iter = match_start;
}
}
}
dialog = gtk_message_dialog_new (GTK_WINDOW (view->window),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_INFO,
GTK_BUTTONS_OK,
"%d strings found and marked in red",
i);
g_signal_connect_swapped (dialog,
"response",
G_CALLBACK (gtk_widget_destroy), dialog);
gtk_widget_show (dialog);
}
static void
buffer_search_forward (Buffer *buffer, const char *str,
View *view)
{
buffer_search (buffer, str, view, TRUE);
}
static void
buffer_search_backward (Buffer *buffer, const char *str,
View *view)
{
buffer_search (buffer, str, view, FALSE);
}
static void
buffer_ref (Buffer *buffer)
{
buffer->refcount++;
}
static void
buffer_unref (Buffer *buffer)
{
buffer->refcount--;
if (buffer->refcount == 0)
{
buffer_set_colors (buffer, FALSE);
buffers = g_slist_remove (buffers, buffer);
g_object_unref (buffer->buffer);
g_free (buffer->filename);
g_free (buffer);
}
}
static void
hsv_to_rgb (gdouble *h,
gdouble *s,
gdouble *v)
{
gdouble hue, saturation, value;
gdouble f, p, q, t;
if (*s == 0.0)
{
*h = *v;
*s = *v;
*v = *v; /* heh */
}
else
{
hue = *h * 6.0;
saturation = *s;
value = *v;
if (hue >= 6.0)
hue = 0.0;
f = hue - (int) hue;
p = value * (1.0 - saturation);
q = value * (1.0 - saturation * f);
t = value * (1.0 - saturation * (1.0 - f));
switch ((int) hue)
{
case 0:
*h = value;
*s = t;
*v = p;
break;
case 1:
*h = q;
*s = value;
*v = p;
break;
case 2:
*h = p;
*s = value;
*v = t;
break;
case 3:
*h = p;
*s = q;
*v = value;
break;
case 4:
*h = t;
*s = p;
*v = value;
break;
case 5:
*h = value;
*s = p;
*v = q;
break;
default:
g_assert_not_reached ();
}
}
}
static void
hue_to_color (gdouble hue,
GdkColor *color)
{
gdouble h, s, v;
h = hue;
s = 1.0;
v = 1.0;
g_return_if_fail (hue <= 1.0);
hsv_to_rgb (&h, &s, &v);
color->red = h * 65535;
color->green = s * 65535;
color->blue = v * 65535;
}
static gint
color_cycle_timeout (gpointer data)
{
Buffer *buffer = data;
buffer_cycle_colors (buffer);
return TRUE;
}
static void
buffer_set_colors (Buffer *buffer,
gboolean enabled)
{
GSList *tmp;
gdouble hue = 0.0;
if (enabled && buffer->color_cycle_timeout == 0)
buffer->color_cycle_timeout = gtk_timeout_add (200, color_cycle_timeout, buffer);
else if (!enabled && buffer->color_cycle_timeout != 0)
{
gtk_timeout_remove (buffer->color_cycle_timeout);
buffer->color_cycle_timeout = 0;
}
tmp = buffer->color_tags;
while (tmp != NULL)
{
if (enabled)
{
GdkColor color;
hue_to_color (hue, &color);
g_object_set (G_OBJECT (tmp->data),
"foreground_gdk", &color,
NULL);
}
else
g_object_set (G_OBJECT (tmp->data),
"foreground_set", FALSE,
NULL);
hue += 1.0 / N_COLORS;
tmp = g_slist_next (tmp);
}
}
static void
buffer_cycle_colors (Buffer *buffer)
{
GSList *tmp;
gdouble hue = buffer->start_hue;
tmp = buffer->color_tags;
while (tmp != NULL)
{
GdkColor color;
hue_to_color (hue, &color);
g_object_set (G_OBJECT (tmp->data),
"foreground_gdk", &color,
NULL);
hue += 1.0 / N_COLORS;
if (hue > 1.0)
hue = 0.0;
tmp = g_slist_next (tmp);
}
buffer->start_hue += 1.0 / N_COLORS;
if (buffer->start_hue > 1.0)
buffer->start_hue = 0.0;
}
static void
close_view (View *view)
{
views = g_slist_remove (views, view);
buffer_unref (view->buffer);
gtk_widget_destroy (view->window);
g_object_unref (view->item_factory);
g_free (view);
if (!views)
gtk_main_quit ();
}
static void
check_close_view (View *view)
{
if (view->buffer->refcount > 1 ||
check_buffer_saved (view->buffer))
close_view (view);
}
static void
view_set_title (View *view)
{
char *pretty_name = buffer_pretty_name (view->buffer);
char *title = g_strconcat ("testtext - ", pretty_name, NULL);
gtk_window_set_title (GTK_WINDOW (view->window), title);
g_free (pretty_name);
g_free (title);
}
static void
cursor_set_callback (GtkTextBuffer *buffer,
const GtkTextIter *location,
GtkTextMark *mark,
gpointer user_data)
{
GtkTextView *text_view;
/* Redraw tab windows if the cursor moves
* on the mapped widget (windows may not exist before realization...
*/
text_view = GTK_TEXT_VIEW (user_data);
if (GTK_WIDGET_MAPPED (text_view) &&
mark == gtk_text_buffer_get_insert (buffer))
{
GdkWindow *tab_window;
tab_window = gtk_text_view_get_window (text_view,
GTK_TEXT_WINDOW_TOP);
gdk_window_invalidate_rect (tab_window, NULL, FALSE);
tab_window = gtk_text_view_get_window (text_view,
GTK_TEXT_WINDOW_BOTTOM);
gdk_window_invalidate_rect (tab_window, NULL, FALSE);
}
}
static gint
tab_stops_expose (GtkWidget *widget,
GdkEventExpose *event,
gpointer user_data)
{
gint first_x;
gint last_x;
gint i;
GdkWindow *top_win;
GdkWindow *bottom_win;
GtkTextView *text_view;
GtkTextWindowType type;
GdkDrawable *target;
gint *positions = NULL;
gint size;
GtkTextAttributes *attrs;
GtkTextIter insert;
GtkTextBuffer *buffer;
gboolean in_pixels;
text_view = GTK_TEXT_VIEW (widget);
/* See if this expose is on the tab stop window */
top_win = gtk_text_view_get_window (text_view,
GTK_TEXT_WINDOW_TOP);
bottom_win = gtk_text_view_get_window (text_view,
GTK_TEXT_WINDOW_BOTTOM);
if (event->window == top_win)
{
type = GTK_TEXT_WINDOW_TOP;
target = top_win;
}
else if (event->window == bottom_win)
{
type = GTK_TEXT_WINDOW_BOTTOM;
target = bottom_win;
}
else
return FALSE;
first_x = event->area.x;
last_x = first_x + event->area.width;
gtk_text_view_window_to_buffer_coords (text_view,
type,
first_x,
0,
&first_x,
NULL);
gtk_text_view_window_to_buffer_coords (text_view,
type,
last_x,
0,
&last_x,
NULL);
buffer = gtk_text_view_get_buffer (text_view);
gtk_text_buffer_get_iter_at_mark (buffer,
&insert,
gtk_text_buffer_get_mark (buffer,
"insert"));
attrs = gtk_text_attributes_new ();
gtk_text_iter_get_attributes (&insert, attrs);
if (attrs->tabs)
{
size = pango_tab_array_get_size (attrs->tabs);
pango_tab_array_get_tabs (attrs->tabs,
NULL,
&positions);
in_pixels = pango_tab_array_get_positions_in_pixels (attrs->tabs);
}
else
{
size = 0;
in_pixels = FALSE;
}
gtk_text_attributes_unref (attrs);
i = 0;
while (i < size)
{
gint pos;
if (!in_pixels)
positions[i] = PANGO_PIXELS (positions[i]);
gtk_text_view_buffer_to_window_coords (text_view,
type,
positions[i],
0,
&pos,
NULL);
gdk_draw_line (target,
widget->style->fg_gc [widget->state],
pos, 0,
pos, 15);
++i;
}
g_free (positions);
return TRUE;
}
static void
get_lines (GtkTextView *text_view,
gint first_y,
gint last_y,
GArray *buffer_coords,
GArray *numbers,
gint *countp)
{
GtkTextIter iter;
gint count;
gint size;
g_array_set_size (buffer_coords, 0);
g_array_set_size (numbers, 0);
/* Get iter at first y */
gtk_text_view_get_line_at_y (text_view, &iter, first_y, NULL);
/* For each iter, get its location and add it to the arrays.
* Stop when we pass last_y
*/
count = 0;
size = 0;
while (!gtk_text_iter_is_end (&iter))
{
gint y, height;
gint line_num;
gtk_text_view_get_line_yrange (text_view, &iter, &y, &height);
g_array_append_val (buffer_coords, y);
line_num = gtk_text_iter_get_line (&iter);
g_array_append_val (numbers, line_num);
++count;
if ((y + height) >= last_y)
break;
gtk_text_iter_forward_line (&iter);
}
*countp = count;
}
static gint
line_numbers_expose (GtkWidget *widget,
GdkEventExpose *event,
gpointer user_data)
{
gint count;
GArray *numbers;
GArray *pixels;
gint first_y;
gint last_y;
gint i;
GdkWindow *left_win;
GdkWindow *right_win;
PangoLayout *layout;
GtkTextView *text_view;
GtkTextWindowType type;
GdkDrawable *target;
text_view = GTK_TEXT_VIEW (widget);
/* See if this expose is on the line numbers window */
left_win = gtk_text_view_get_window (text_view,
GTK_TEXT_WINDOW_LEFT);
right_win = gtk_text_view_get_window (text_view,
GTK_TEXT_WINDOW_RIGHT);
if (event->window == left_win)
{
type = GTK_TEXT_WINDOW_LEFT;
target = left_win;
}
else if (event->window == right_win)
{
type = GTK_TEXT_WINDOW_RIGHT;
target = right_win;
}
else
return FALSE;
first_y = event->area.y;
last_y = first_y + event->area.height;
gtk_text_view_window_to_buffer_coords (text_view,
type,
0,
first_y,
NULL,
&first_y);
gtk_text_view_window_to_buffer_coords (text_view,
type,
0,
last_y,
NULL,
&last_y);
numbers = g_array_new (FALSE, FALSE, sizeof (gint));
pixels = g_array_new (FALSE, FALSE, sizeof (gint));
get_lines (text_view,
first_y,
last_y,
pixels,
numbers,
&count);
/* Draw fully internationalized numbers! */
layout = gtk_widget_create_pango_layout (widget, "");
i = 0;
while (i < count)
{
gint pos;
gchar *str;
gtk_text_view_buffer_to_window_coords (text_view,
type,
0,
g_array_index (pixels, gint, i),
NULL,
&pos);
str = g_strdup_printf ("%d", g_array_index (numbers, gint, i));
pango_layout_set_text (layout, str, -1);
gtk_paint_layout (widget->style,
target,
GTK_WIDGET_STATE (widget),
FALSE,
NULL,
widget,
NULL,
2, pos + 2,
layout);
g_free (str);
++i;
}
g_array_free (pixels, TRUE);
g_array_free (numbers, TRUE);
g_object_unref (layout);
/* don't stop emission, need to draw children */
return FALSE;
}
static View *
create_view (Buffer *buffer)
{
View *view;
GtkWidget *sw;
GtkWidget *vbox;
view = g_new0 (View, 1);
views = g_slist_prepend (views, view);
view->buffer = buffer;
buffer_ref (buffer);
view->window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
g_object_set_data (G_OBJECT (view->window), "view", view);
g_signal_connect (view->window, "delete_event",
G_CALLBACK (delete_event_cb), NULL);
view->accel_group = gtk_accel_group_new ();
view->item_factory = gtk_item_factory_new (GTK_TYPE_MENU_BAR, "<main>", view->accel_group);
g_object_set_data (G_OBJECT (view->item_factory), "view", view);
gtk_item_factory_create_items (view->item_factory, G_N_ELEMENTS (menu_items), menu_items, view);
gtk_window_add_accel_group (GTK_WINDOW (view->window), view->accel_group);
vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (view->window), vbox);
gtk_box_pack_start (GTK_BOX (vbox),
gtk_item_factory_get_widget (view->item_factory, "<main>"),
FALSE, FALSE, 0);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
view->text_view = gtk_text_view_new_with_buffer (buffer->buffer);
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view->text_view),
GTK_WRAP_WORD);
/* Make sure border width works, no real reason to do this other than testing */
gtk_container_set_border_width (GTK_CONTAINER (view->text_view),
10);
/* Draw tab stops in the top and bottom windows. */
gtk_text_view_set_border_window_size (GTK_TEXT_VIEW (view->text_view),
GTK_TEXT_WINDOW_TOP,
15);
gtk_text_view_set_border_window_size (GTK_TEXT_VIEW (view->text_view),
GTK_TEXT_WINDOW_BOTTOM,
15);
g_signal_connect (view->text_view,
"expose_event",
G_CALLBACK (tab_stops_expose),
NULL);
g_signal_connect (view->buffer->buffer,
"mark_set",
G_CALLBACK (cursor_set_callback),
view->text_view);
/* Draw line numbers in the side windows; we should really be
* more scientific about what width we set them to.
*/
gtk_text_view_set_border_window_size (GTK_TEXT_VIEW (view->text_view),
GTK_TEXT_WINDOW_RIGHT,
30);
gtk_text_view_set_border_window_size (GTK_TEXT_VIEW (view->text_view),
GTK_TEXT_WINDOW_LEFT,
30);
g_signal_connect (view->text_view,
"expose_event",
G_CALLBACK (line_numbers_expose),
NULL);
gtk_box_pack_start (GTK_BOX (vbox), sw, TRUE, TRUE, 0);
gtk_container_add (GTK_CONTAINER (sw), view->text_view);
gtk_window_set_default_size (GTK_WINDOW (view->window), 500, 500);
gtk_widget_grab_focus (view->text_view);
view_set_title (view);
view_init_menus (view);
view_add_example_widgets (view);
gtk_widget_show_all (view->window);
return view;
}
static void
view_add_example_widgets (View *view)
{
GtkTextChildAnchor *anchor;
Buffer *buffer;
buffer = view->buffer;
anchor = g_object_get_data (G_OBJECT (buffer->buffer),
"anchor");
if (anchor && !gtk_text_child_anchor_get_deleted (anchor))
{
GtkWidget *widget;
widget = gtk_button_new_with_label ("Foo");
gtk_text_view_add_child_at_anchor (GTK_TEXT_VIEW (view->text_view),
widget,
anchor);
gtk_widget_show (widget);
}
}
void
test_init ()
{
if (g_file_test ("../gdk-pixbuf/libpixbufloader-pnm.la",
G_FILE_TEST_EXISTS))
{
putenv ("GDK_PIXBUF_MODULE_FILE=../gdk-pixbuf/gdk-pixbuf.loaders");
putenv ("GTK_IM_MODULE_FILE=../modules/input/gtk.immodules");
}
}
int
main (int argc, char** argv)
{
Buffer *buffer;
View *view;
int i;
test_init ();
gtk_init (&argc, &argv);
buffer = create_buffer ();
view = create_view (buffer);
buffer_unref (buffer);
push_active_window (GTK_WINDOW (view->window));
for (i=1; i < argc; i++)
{
char *filename;
/* Quick and dirty canonicalization - better should be in GLib
*/
if (!g_path_is_absolute (argv[i]))
{
char *cwd = g_get_current_dir ();
filename = g_strconcat (cwd, "/", argv[i], NULL);
g_free (cwd);
}
else
filename = argv[i];
open_ok_func (filename, view);
if (filename != argv[i])
g_free (filename);
}
pop_active_window ();
gtk_main ();
return 0;
}
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