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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 "libreport.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);
}
static void fixer(GtkWidget *widget, gpointer data_unused)
{
if (GTK_IS_CONTAINER(widget))
{
gtk_container_foreach((GtkContainer*)widget, fixer, NULL);
return;
}
if (GTK_IS_LABEL(widget))
{
GtkLabel *label = (GtkLabel*)widget;
//const char *txt = gtk_label_get_label(label);
GtkMisc *misc = (GtkMisc*)widget;
gfloat yalign; //= 1;
gint ypad; //= 1;
if (gtk_label_get_line_wrap(label)
&& (gtk_misc_get_alignment(misc, NULL, &yalign), yalign == 0)
&& (gtk_misc_get_padding(misc, NULL, &ypad), ypad == 0)
) {
//log("label '%s' set to wrap", txt);
make_label_autowrap_on_resize(label);
return;
}
//log("label '%s' not set to wrap %g %d", txt, yalign, ypad);
}
}
void fix_all_wrapped_labels(GtkWidget *widget)
{
fixer(widget, NULL);
}
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