[maemo-developers] [maemo-developers] Re: Q: virtual keyboard and *stealing* text selection
From: 3rdshift at comcast.net 3rdshift at comcast.netDate: Fri Nov 17 00:44:27 EET 2006
- Previous message: [maemo-developers] Q: virtual keyboard and *stealing* text selection
- Next message: [maemo-developers] Bugzilla modules and components hierarchy not very easy
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Well, since nobody responded, hot on the heals, here is my test case for the problem originally stated (files also attached).
Perhaps, someone will spot my problem and correct it.
To run the test in scratchbox, do
% make
% run-standalone.sh stealing-selection
stealing-selection.c
--------------------------------------------------
/*
* stealing-selection.c
*
*/
#include <gtk/gtk.h>
void
on_window_destroy (GtkWidget *widget, gpointer data)
{
gtk_main_quit ();
}
/* Callback for close button */
void
on_button_clicked (GtkWidget *button, GtkTextBuffer *buffer)
{
GtkTextIter start;
GtkTextIter end;
gchar *text;
/* Obtain iters for the start and end of points of the buffer */
gtk_text_buffer_get_start_iter (buffer, &start);
gtk_text_buffer_get_end_iter (buffer, &end);
/* Get the entire buffer text. */
text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
/* Print the text */
g_print ("%s", text);
g_free (text);
gtk_main_quit ();
}
/* Callback for action button. We detect if text has been
selected and print selection to stdout.
*/
void
on_action_button_clicked (GtkWidget *button, GtkTextBuffer *buffer)
{
GtkTextIter start;
GtkTextIter end;
gchar* text;
gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
/* Print the text. */
g_print ("\nSelected text [%s]\n", text);
g_free (text);
/* Apply bold tag */
if (gtk_text_iter_equal (&start, &end)) {
g_print ("*** Empty selection ***\n");
}
else {
g_print ("Apply the tag to the selected text.\n");
gtk_text_buffer_apply_tag_by_name (buffer, "bold", &start, &end);
}
}
int
main(int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *vbox;
GtkWidget *text_view;
GtkWidget *close_button;
GtkTextBuffer *buffer;
GtkWidget *inner_hbox;
GtkWidget *action_button;
GtkWidget *ab_box;
GtkWidget *cb_box;
GtkWidget *hseparator;
GtkWidget *vseparator;
gtk_init (&argc, &argv);
/* Create a Window. */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "Maemo text selection bug");
/* Set a decent default size for the window. */
gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);
g_signal_connect (G_OBJECT (window), "destroy",
G_CALLBACK (on_window_destroy),
NULL);
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_add (GTK_CONTAINER (window), vbox);
/* Create an HBox that holds text and action button */
inner_hbox = gtk_hbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (vbox), inner_hbox, 1, 1, 0);
/* Create a multiline text widget. */
text_view = gtk_text_view_new ();
gtk_box_pack_start (GTK_BOX (inner_hbox), text_view, 1, 1, 4);
/* Obtaining the buffer associated with the widget. */
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
/* Tag with weight bold and tag name "bold" . */
gtk_text_buffer_create_tag (buffer, "bold",
"weight", PANGO_WEIGHT_BOLD,
NULL);
/* Set the default buffer text. */
gtk_text_buffer_set_text (buffer,
"1) Select any part of the text.\n"
"2) Observer the virtual keyboard to pop up.\n"
"3) You can hide the virtual keyboard and verify\n"
" that text selection is still active.\n"
"4) Now, click on 'Apply markup' button\n"
" and text selection is cleared up BEFORE\n"
" 'clicked' signal is delivered!\n\n"
" This is a bug - if you compile and run\n"
" this test on your desktop, the selection\n"
" will remain intact and available in the \n"
" callback.\n",
-1);
/* Create vbox to hold action button */
hseparator = gtk_hseparator_new ();
gtk_box_pack_start (GTK_BOX (inner_hbox), hseparator, 0, 0, 2);
ab_box = gtk_vbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (inner_hbox), ab_box, 0, 0, 2);
/* Create an action button */
action_button = gtk_button_new_with_label ("Apply markup");
gtk_box_pack_start (GTK_BOX (ab_box), action_button, 0, 0, 0);
g_signal_connect (G_OBJECT (action_button), "clicked",
G_CALLBACK (on_action_button_clicked),
buffer);
/* Create hbox to hold close button */
vseparator = gtk_vseparator_new ();
gtk_box_pack_start (GTK_BOX (vbox), vseparator, 0, 1, 2);
cb_box = gtk_hbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (vbox), cb_box, 0, 0, 2);
/* Create a close button. */
close_button = gtk_button_new_with_label ("Close");
gtk_box_pack_end (GTK_BOX (cb_box), close_button, 0, 0, 0);
g_signal_connect (G_OBJECT (close_button), "clicked",
G_CALLBACK (on_button_clicked),
buffer);
/* Map all */
gtk_widget_show_all (window);
gtk_main ();
return 0;
}
--------------------------------------------------
makefile:
--------------------------------------------------
## -*- makefile -*-
##
##
##
APP_CFLAGS=`pkg-config gtk+-2.0 --cflags`
APP_LIBS=`pkg-config gtk+-2.0 --libs`
APP = stealing-selection
SRC = stealing-selection.c
OBJS = $(SRC:.c=.o)
all: $(APP)
$(APP): ${OBJS}
$(CC) -g ${APP_CFLAGS} ${OBJS} -o $@ ${APP_LIBS}
.c.o:
$(CC) -g ${APP_CFLAGS} -c $<
clean:
-rm -f *.o *~ core core.*
distclean: clean
-rm $(APP)
## Dependencies
$(OBJS): $(SRC)
--------------------------------------------------
thanks,
-Vlad
-------------- next part --------------
/*
* stealing-selection.c
*
*/
#include <gtk/gtk.h>
void
on_window_destroy (GtkWidget *widget, gpointer data)
{
gtk_main_quit ();
}
/* Callback for close button */
void
on_button_clicked (GtkWidget *button, GtkTextBuffer *buffer)
{
GtkTextIter start;
GtkTextIter end;
gchar *text;
/* Obtain iters for the start and end of points of the buffer */
gtk_text_buffer_get_start_iter (buffer, &start);
gtk_text_buffer_get_end_iter (buffer, &end);
/* Get the entire buffer text. */
text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
/* Print the text */
g_print ("%s", text);
g_free (text);
gtk_main_quit ();
}
/* Callback for action button. We detect if text has been
selected and print selection to stdout.
*/
void
on_action_button_clicked (GtkWidget *button, GtkTextBuffer *buffer)
{
GtkTextIter start;
GtkTextIter end;
gchar* text;
gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
text = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
/* Print the text. */
g_print ("\nSelected text [%s]\n", text);
g_free (text);
/* Apply bold tag */
if (gtk_text_iter_equal (&start, &end)) {
g_print ("*** Empty selection ***\n");
}
else {
g_print ("Apply the tag to the selected text.\n");
gtk_text_buffer_apply_tag_by_name (buffer, "bold", &start, &end);
}
}
int
main(int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *vbox;
GtkWidget *text_view;
GtkWidget *close_button;
GtkTextBuffer *buffer;
GtkWidget *inner_hbox;
GtkWidget *action_button;
GtkWidget *ab_box;
GtkWidget *cb_box;
GtkWidget *hseparator;
GtkWidget *vseparator;
gtk_init (&argc, &argv);
/* Create a Window. */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "Maemo text selection bug");
/* Set a decent default size for the window. */
gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);
g_signal_connect (G_OBJECT (window), "destroy",
G_CALLBACK (on_window_destroy),
NULL);
vbox = gtk_vbox_new (FALSE, 2);
gtk_container_add (GTK_CONTAINER (window), vbox);
/* Create an HBox that holds text and action button */
inner_hbox = gtk_hbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (vbox), inner_hbox, 1, 1, 0);
/* Create a multiline text widget. */
text_view = gtk_text_view_new ();
gtk_box_pack_start (GTK_BOX (inner_hbox), text_view, 1, 1, 4);
/* Obtaining the buffer associated with the widget. */
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text_view));
/* Tag with weight bold and tag name "bold" . */
gtk_text_buffer_create_tag (buffer, "bold",
"weight", PANGO_WEIGHT_BOLD,
NULL);
/* Set the default buffer text. */
gtk_text_buffer_set_text (buffer,
"1) Select any part of the text.\n"
"2) Observer the virtual keyboard to pop up.\n"
"3) You can hide the virtual keyboard and verify\n"
" that text selection is still active.\n"
"4) Now, click on 'Apply markup' button\n"
" and text selection is cleared up BEFORE\n"
" 'clicked' signal is delivered!\n\n"
" This is a bug - if you compile and run\n"
" this test on your desktop, the selection\n"
" will remain intact and available in the \n"
" callback.\n",
-1);
/* Create vbox to hold action button */
hseparator = gtk_hseparator_new ();
gtk_box_pack_start (GTK_BOX (inner_hbox), hseparator, 0, 0, 2);
ab_box = gtk_vbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (inner_hbox), ab_box, 0, 0, 2);
/* Create an action button */
action_button = gtk_button_new_with_label ("Apply markup");
gtk_box_pack_start (GTK_BOX (ab_box), action_button, 0, 0, 0);
g_signal_connect (G_OBJECT (action_button), "clicked",
G_CALLBACK (on_action_button_clicked),
buffer);
/* Create hbox to hold close button */
vseparator = gtk_vseparator_new ();
gtk_box_pack_start (GTK_BOX (vbox), vseparator, 0, 1, 2);
cb_box = gtk_hbox_new (FALSE, 2);
gtk_box_pack_start (GTK_BOX (vbox), cb_box, 0, 0, 2);
/* Create a close button. */
close_button = gtk_button_new_with_label ("Close");
gtk_box_pack_end (GTK_BOX (cb_box), close_button, 0, 0, 0);
g_signal_connect (G_OBJECT (close_button), "clicked",
G_CALLBACK (on_button_clicked),
buffer);
/* Map all */
gtk_widget_show_all (window);
gtk_main ();
return 0;
}
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/octet-stream
Size: 407 bytes
Desc: not available
Url : http://lists.maemo.org/pipermail/maemo-developers/attachments/20061116/57b54dca/attachment.obj
- Previous message: [maemo-developers] Q: virtual keyboard and *stealing* text selection
- Next message: [maemo-developers] Bugzilla modules and components hierarchy not very easy
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]