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/*
Copyright (C) 2011 ABRT Team
Copyright (C) 2011 RedHat inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <gtk/gtk.h>
#include "abrtlib.h"
/*
* GTK doesn't re-wrap GtkLabels which have line wrapping set to true.
* The line wrapped label in VBox looks like this:
* |----------------------------------------|
* |----------------------------------------|
* | word word word word |
* | word word word word |
* | word word |
* |----------------------------------------|
* |----------------------------------------|
* So every project copy-pastes this code to make labels widen
* and shrink horizontally on resize.
*/
static void rewrap_label_to_parent_size(GtkWidget *widget,
GtkAllocation *allocation,
gpointer data)
{
GtkLabel *label = GTK_LABEL(widget);
PangoLayout *layout = gtk_label_get_layout(label);
int lw_old, lh_old;
pango_layout_get_pixel_size(layout, &lw_old, &lh_old);
/* Already right size? */
if (lw_old == allocation->width)
return;
/* Rewrap text to new width */
pango_layout_set_width(layout, allocation->width * PANGO_SCALE);
/* Did text height change as a result? */
int lh;
pango_layout_get_pixel_size(layout, NULL, &lh);
if (lh != lh_old) /* yes, resize label height */
gtk_widget_set_size_request(widget, -1, lh);
}
void make_label_autowrap_on_resize(GtkLabel *label)
{
// So far, only tested to work on labels which were set up as:
//gtk_label_set_justify(label, GTK_JUSTIFY_LEFT);
//gtk_misc_set_alignment(GTK_MISC(label), /*x,yalign:*/ 0.0, 0.0);
// yalign != 0 definitely breaks things!
// also, <property name="ypad">NONZERO</property> would be bad
/* Makes no sense on non-wrapped labels, so we can as well
* set wrapping to "on" unconditionally, istead of making it a requirement
*/
gtk_label_set_line_wrap(label, TRUE);
g_signal_connect(G_OBJECT(label), "size-allocate", G_CALLBACK(rewrap_label_to_parent_size), NULL);
// So far, only tested to work on labels which were set up as:
//gtk_box_pack_start(box, label, /*expand*/ false, /*fill*/ false, /*padding*/ 0);
}
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