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Don't apply fonts that don't result in family name or have size 0.

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Issue: 554
This commit is contained in:
Dave Davenport 2017-02-03 09:52:56 +01:00
parent 42a1eba275
commit 8f4a4d51c6
4 changed files with 39 additions and 6 deletions
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8
include/helper.h
View file

@ -234,4 +234,12 @@ int rofi_scorer_fuzzy_evaluate ( const char *pattern, glong plen, const char *st
* characters (not bytes) of `b`.
*/
int utf8_strncmp ( const char *a, const char* b, size_t n );
/**
* @param pfd Pango font description to validate.
* @param font The name of the font to check.
*
* @returns true if font is valid.
*/
gboolean helper_validate_font ( PangoFontDescription *pfd, const char *font );
#endif // ROFI_HELPER_H

14
source/helper.c
View file

@ -50,6 +50,8 @@
#include "rofi.h"
#include "view.h"
#define LOG_DOMAIN "Helper"
const char *const monitor_position_entries[] = {
"on focused monitor",
"on focused window",
@ -524,6 +526,18 @@ void remove_pid_file ( int fd )
}
}
gboolean helper_validate_font ( PangoFontDescription *pfd, const char *font )
{
const char *fam = pango_font_description_get_family ( pfd );
int size = pango_font_description_get_size ( pfd );
if ( fam == NULL || size == 0 ){
g_log ( LOG_DOMAIN, G_LOG_LEVEL_DEBUG, "Pango failed to parse font: '%s'", font);
g_log ( LOG_DOMAIN, G_LOG_LEVEL_DEBUG, "Got family: <b>%s</b> at size: <b>%d</b>", fam?fam:"{unknown}", size);
return FALSE;
}
return TRUE;
}
/**
* Do some input validation, especially the first few could break things.
* It is good to catch them beforehand.

4
source/view.c
View file

@ -694,7 +694,9 @@ void __create_window ( MenuFlags menu_flags )
char *font = rofi_theme_get_string ( WIDGET ( win ), "font", config.menu_font );
if ( font ) {
PangoFontDescription *pfd = pango_font_description_from_string ( font );
pango_context_set_font_description ( p, pfd );
if ( helper_validate_font(pfd, font)) {
pango_context_set_font_description ( p, pfd );
}
pango_font_description_free ( pfd );
}
PangoLanguage *l = pango_language_get_default();

19
source/widgets/textbox.c
View file

@ -31,6 +31,7 @@
#include <math.h>
#include "widgets/textbox.h"
#include "keyb.h"
#include "helper.h"
#include "x11-helper.h"
#include "mode.h"
#include "view.h"
@ -125,12 +126,20 @@ textbox* textbox_create ( const char *name, TextboxFlags flags, TextBoxFontType
if ( tbfc == NULL ){
tbfc = g_malloc0 ( sizeof (TBFontConfig) );
tbfc->pfd = pango_font_description_from_string ( font );
tbfc->metrics = pango_context_get_metrics ( p_context, tbfc->pfd, NULL );
g_hash_table_insert ( tbfc_cache, font, tbfc);
if ( helper_validate_font ( tbfc->pfd, font)) {
tbfc->metrics = pango_context_get_metrics ( p_context, tbfc->pfd, NULL );
g_hash_table_insert ( tbfc_cache, font, tbfc);
} else {
pango_font_description_free ( tbfc->pfd );
g_free( tbfc);
tbfc = NULL;
}
}
if ( tbfc ) {
// Update for used font.
pango_layout_set_font_description ( tb->layout, tbfc->pfd );
tb->metrics = tbfc->metrics;
}
// Update for used font.
pango_layout_set_font_description ( tb->layout, tbfc->pfd );
tb->metrics = tbfc->metrics;
}