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gtk/tests/testtext.c
Michael Natterer 6c1d990adc Add infrastructure for copy/paste and DND of rich text for GtkTextBuffer. 
2006-03-07  Michael Natterer  <mitch@imendio.com>

	Add infrastructure for copy/paste and DND of rich text for
	GtkTextBuffer. Fixes bug #324177.

	* gtk/gtktextbufferrichtext.[ch]: new files implementing a
	per-buffer registry of rich text formats.

	* gtk/gtk.h: #include gtktextbufferrichtext.h

	* gtk/gtktextbufferserialize.[ch]: new files implementing an
	internal serialization format that can handle all of a text
	buffer's tags and pixbufs. It's not useful for anything except
	tranfer between instances of GtkTextBuffer (Anders Carlsson).

	* gtk/Makefile.am: build the new files.

	* gtk/gtkclipboard.[ch]: added convenience APIs for rich text,
	just as they exist for plain text and pixbufs.

	* gtk/gtkselection.[ch]: added rich text convenience APIs here
	too.  Return the target list from gtk_target_list_ref(). Register
	GtkTargetList as boxed type. Added
	gtk_target_table_new_from_list() and gtk_target_table_free(),
	which make converting between GtkTargetList and arrays of
	GtkTargetEntry considerably easier.

	* gtk/gtktextutil.[ch]: added _gtk_text_util_create_rich_drag_icon()
	which creates a fancy rich text icon (Matthias Clasen).

	* gtk/gtktextbuffer.[ch]: use all the new stuff above and
	implement copy and paste of rich text. Added APIs for getting the
	target lists used for copy and paste. Added public enum
	GtkTextBufferTargetInfo which contains the "info" IDs associated
	with the entries of the target lists.

	* gtk/gtktextview.c: use the new rich text APIs and
	GtkTextBuffer's new target list API to enable DND of rich text
	chunks.

	* gtk/gtk.symbols: export all the new symbols added.

	* tests/testtext.c: added rich text testing stuff.
2006-03-07 13:46:11 +00:00

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/* testtext.c
* Copyright (C) 2000 Red Hat, Inc
* Author: Havoc Pennington
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include <stdio.h>
#include <sys/stat.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#undef GTK_DISABLE_DEPRECATED
#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 *rise_tag;
GtkTextTag *large_tag;
GtkTextTag *indent_tag;
GtkTextTag *margin_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 (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 (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 (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 (tag,
"background_gdk", &color,
"size_points", 10.0,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "strikethrough", NULL);
setup_tag (tag);
g_object_set (tag,
"strikethrough", TRUE,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "underline", NULL);
setup_tag (tag);
g_object_set (tag,
"underline", PANGO_UNDERLINE_SINGLE,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "underline_error", NULL);
setup_tag (tag);
g_object_set (tag,
"underline", PANGO_UNDERLINE_ERROR,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "centered", NULL);
g_object_set (tag,
"justification", GTK_JUSTIFY_CENTER,
NULL);
tag = gtk_text_buffer_create_tag (buffer, "rtl_quote", NULL);
g_object_set (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 (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, 4);
gtk_text_buffer_get_iter_at_line_offset (buffer, &iter2, 1, 7);
gtk_text_buffer_apply_tag_by_name (buffer, "underline_error", &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_rise (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->rise_tag,
&start, &end);
}
else
{
gtk_text_buffer_apply_tag (view->buffer->buffer,
view->buffer->rise_tag,
&start, &end);
}
}
}
static void
do_apply_large (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->large_tag,
&start, &end);
}
else
{
gtk_text_buffer_apply_tag (view->buffer->buffer,
view->buffer->large_tag,
&start, &end);
}
}
}
static void
do_apply_indent (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->indent_tag,
&start, &end);
}
else
{
gtk_text_buffer_apply_tag (view->buffer->buffer,
view->buffer->indent_tag,
&start, &end);
}
}
}
static void
do_apply_margin (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->margin_tag,
&start, &end);
}
else
{
gtk_text_buffer_apply_tag (view->buffer->buffer,
view->buffer->margin_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);
}
static void
rich_text_store_populate (GtkListStore *store,
GtkTextBuffer *buffer,
gboolean deserialize)
{
GdkAtom *formats;
gint n_formats;
gint i;
gtk_list_store_clear (store);
if (deserialize)
formats = gtk_text_buffer_get_deserialize_formats (buffer, &n_formats);
else
formats = gtk_text_buffer_get_serialize_formats (buffer, &n_formats);
for (i = 0; i < n_formats; i++)
{
GtkTreeIter iter;
gchar *mime_type;
gboolean can_create_tags = FALSE;
mime_type = gdk_atom_name (formats[i]);
if (deserialize)
can_create_tags =
gtk_text_buffer_deserialize_get_can_create_tags (buffer, formats[i]);
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter,
0, formats[i],
1, mime_type,
2, can_create_tags,
-1);
g_free (mime_type);
}
g_free (formats);
}
static void
rich_text_paste_target_list_notify (GtkTextBuffer *buffer,
const GParamSpec *pspec,
GtkListStore *store)
{
rich_text_store_populate (store, buffer, TRUE);
}
static void
rich_text_copy_target_list_notify (GtkTextBuffer *buffer,
const GParamSpec *pspec,
GtkListStore *store)
{
rich_text_store_populate (store, buffer, FALSE);
}
static void
rich_text_can_create_tags_toggled (GtkCellRendererToggle *toggle,
const gchar *path,
GtkTreeModel *model)
{
GtkTreeIter iter;
if (gtk_tree_model_get_iter_from_string (model, &iter, path))
{
GtkTextBuffer *buffer;
GdkAtom format;
gboolean can_create_tags;
buffer = g_object_get_data (G_OBJECT (model), "buffer");
gtk_tree_model_get (model, &iter,
0, &format,
2, &can_create_tags,
-1);
gtk_text_buffer_deserialize_set_can_create_tags (buffer, format,
!can_create_tags);
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
2, !can_create_tags,
-1);
}
}
static void
rich_text_unregister_clicked (GtkWidget *button,
GtkTreeView *tv)
{
GtkTreeSelection *sel = gtk_tree_view_get_selection (tv);
GtkTreeModel *model;
GtkTreeIter iter;
if (gtk_tree_selection_get_selected (sel, &model, &iter))
{
GtkTextBuffer *buffer;
gboolean deserialize;
GdkAtom format;
buffer = g_object_get_data (G_OBJECT (model), "buffer");
deserialize = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (model),
"deserialize"));
gtk_tree_model_get (model, &iter,
0, &format,
-1);
if (deserialize)
gtk_text_buffer_unregister_deserialize_format (buffer, format);
else
gtk_text_buffer_unregister_serialize_format (buffer, format);
}
}
static void
rich_text_register_clicked (GtkWidget *button,
GtkTreeView *tv)
{
GtkWidget *dialog;
GtkWidget *label;
GtkWidget *entry;
dialog = gtk_dialog_new_with_buttons ("Register new Tagset",
GTK_WINDOW (gtk_widget_get_toplevel (button)),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
label = gtk_label_new ("Enter tagset name or leave blank for "
"unrestricted internal format:");
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), label,
FALSE, FALSE, 0);
entry = gtk_entry_new ();
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), entry,
FALSE, FALSE, 0);
gtk_widget_show_all (dialog);
if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_OK)
{
GtkTreeModel *model = gtk_tree_view_get_model (tv);
GtkTextBuffer *buffer = g_object_get_data (G_OBJECT (model), "buffer");
const gchar *tagset = gtk_entry_get_text (GTK_ENTRY (entry));
gboolean deserialize;
deserialize = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (model),
"deserialize"));
if (tagset && ! strlen (tagset))
tagset = NULL;
if (deserialize)
gtk_text_buffer_register_deserialize_tagset (buffer, tagset);
else
gtk_text_buffer_register_serialize_tagset (buffer, tagset);
}
gtk_widget_destroy (dialog);
}
static void
do_rich_text (gpointer callback_data,
guint deserialize,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
GtkTextBuffer *buffer;
GtkWidget *dialog;
GtkWidget *tv;
GtkWidget *sw;
GtkWidget *hbox;
GtkWidget *button;
GtkListStore *store;
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view->text_view));
dialog = gtk_dialog_new_with_buttons (deserialize ?
"Rich Text Paste & Drop" :
"Rich Text Copy & Drag",
GTK_WINDOW (view->window),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_STOCK_CLOSE, 0,
NULL);
g_signal_connect (dialog, "response",
G_CALLBACK (gtk_widget_destroy),
NULL);
store = gtk_list_store_new (3,
G_TYPE_POINTER,
G_TYPE_STRING,
G_TYPE_BOOLEAN);
g_object_set_data (G_OBJECT (store), "buffer", buffer);
g_object_set_data (G_OBJECT (store), "deserialize",
GUINT_TO_POINTER (deserialize));
tv = gtk_tree_view_new_with_model (GTK_TREE_MODEL (store));
g_object_unref (store);
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tv),
0, "Rich Text Format",
gtk_cell_renderer_text_new (),
"text", 1,
NULL);
if (deserialize)
{
GtkCellRenderer *renderer = gtk_cell_renderer_toggle_new ();
gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tv),
1, "Can Create Tags",
renderer,
"active", 2,
NULL);
g_signal_connect (renderer, "toggled",
G_CALLBACK (rich_text_can_create_tags_toggled),
store);
}
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_widget_set_size_request (sw, 300, 100);
gtk_container_add (GTK_CONTAINER (GTK_DIALOG (dialog)->vbox), sw);
gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (sw), tv);
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog)->vbox), hbox,
FALSE, FALSE, 0);
button = gtk_button_new_with_label ("Unregister Selected Format");
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (rich_text_unregister_clicked),
tv);
button = gtk_button_new_with_label ("Register New Tagset\n"
"for the Internal Format");
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
g_signal_connect (button, "clicked",
G_CALLBACK (rich_text_register_clicked),
tv);
if (deserialize)
g_signal_connect_object (buffer, "notify::paste-target-list",
G_CALLBACK (rich_text_paste_target_list_notify),
G_OBJECT (store), 0);
else
g_signal_connect_object (buffer, "notify::copy-target-list",
G_CALLBACK (rich_text_copy_target_list_notify),
G_OBJECT (store), 0);
rich_text_store_populate (store, buffer, deserialize);
gtk_widget_show_all (dialog);
}
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);
}
static void
do_select_all (gpointer callback_data,
guint callback_action,
GtkWidget *widget)
{
View *view = view_from_widget (widget);
GtkTextBuffer *buffer;
GtkTextIter start, end;
buffer = view->buffer->buffer;
gtk_text_buffer_get_bounds (buffer, &start, &end);
gtk_text_buffer_select_range (buffer, &start, &end);
}
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, NULL, 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, NULL, 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 },
{ "/Edit/Select All", "<control>A", do_select_all, 0, NULL },
{ "/_Settings", NULL, NULL, 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, NULL, 0, "<Separator>" },
{ "/Settings/Editable", NULL, do_editable_changed, TRUE, "<RadioItem>" },
{ "/Settings/Not editable", NULL, do_editable_changed, FALSE, "/Settings/Editable" },
{ "/Settings/sep1", NULL, NULL, 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, NULL, 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, NULL, 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, NULL, 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, NULL, 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/Rise", NULL, do_apply_rise, FALSE, NULL },
{ "/Attributes/Large", NULL, do_apply_large, FALSE, NULL },
{ "/Attributes/Indent", NULL, do_apply_indent, FALSE, NULL },
{ "/Attributes/Margins", NULL, do_apply_margin, FALSE, 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 },
{ "/Attributes/Rich Text copy & drag", NULL, do_rich_text, 0, NULL },
{ "/Attributes/Rich Text paste & drop", NULL, do_rich_text, 1, NULL },
{ "/_Test", NULL, NULL, 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 1
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);
buffer->rise_tag = gtk_text_buffer_create_tag (buffer->buffer, NULL,
"rise", 10 * PANGO_SCALE, NULL);
buffer->large_tag = gtk_text_buffer_create_tag (buffer->buffer, NULL,
"scale", PANGO_SCALE_X_LARGE, NULL);
buffer->indent_tag = gtk_text_buffer_create_tag (buffer->buffer, NULL,
"indent", 20, NULL);
buffer->margin_tag = gtk_text_buffer_create_tag (buffer->buffer, NULL,
"left_margin", 20, "right_margin", 20, 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 = g_timeout_add (200, color_cycle_timeout, buffer);
else if (!enabled && buffer->color_cycle_timeout != 0)
{
g_source_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 (tmp->data,
"foreground_gdk", &color,
NULL);
}
else
g_object_set (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 (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 (void)
{
if (g_file_test ("../gdk-pixbuf/libpixbufloader-pnm.la",
G_FILE_TEST_EXISTS))
{
g_setenv ("GDK_PIXBUF_MODULE_FILE", "../gdk-pixbuf/gdk-pixbuf.loaders", TRUE);
g_setenv ("GTK_IM_MODULE_FILE", "../modules/input/gtk.immodules", TRUE);
}
}
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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