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gtkmain: add support for GTK_DEBUG=invert-text-dir

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This allows inverting the default text-direction in an application for
debugging, testing, and QA purposes. IDEs such as Builder may automate this
to encourage more application developers to test with a text-direction
different than their own.
This commit is contained in:
Christian Hergert 2022-06-01 11:26:44 -07:00
parent 56a1cbe217
commit 8f1db27b6b
2 changed files with 13 additions and 1 deletions
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1
gtk/gtkdebug.h
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@ -82,6 +82,7 @@ typedef enum {
GTK_DEBUG_BUILDER_OBJECTS = 1 << 16,
GTK_DEBUG_A11Y = 1 << 17,
GTK_DEBUG_ICONFALLBACK = 1 << 18,
GTK_DEBUG_INVERT_TEXT_DIR = 1 << 19,
} GtkDebugFlags;
#ifdef G_ENABLE_DEBUG

13
gtk/gtkmain.c
View File

@ -203,6 +203,7 @@ static const GdkDebugKey gtk_debug_keys[] = {
{ "snapshot", GTK_DEBUG_SNAPSHOT, "Generate debug render nodes" },
{ "accessibility", GTK_DEBUG_A11Y, "Information about accessibility state changes" },
{ "iconfallback", GTK_DEBUG_ICONFALLBACK, "Information about icon fallback" },
{ "invert-text-dir", GTK_DEBUG_INVERT_TEXT_DIR, "Invert the default text direction" },
};
/* This checks to see if the process is running suid or sgid
@ -523,6 +524,7 @@ static void
do_post_parse_initialization (void)
{
GdkDisplayManager *display_manager;
GtkTextDirection text_dir;
gint64 before G_GNUC_UNUSED;
if (gtk_initialized)
@ -536,7 +538,16 @@ do_post_parse_initialization (void)
signal (SIGPIPE, SIG_IGN);
#endif
gtk_widget_set_default_direction (gtk_get_locale_direction ());
text_dir = gtk_get_locale_direction ();
/* We always allow inverting the text direction, even in
* production builds, as SDK/IDE tooling may provide the
* ability for developers to test rtl/ltr inverted.
*/
if (gtk_get_debug_flags () & GTK_DEBUG_INVERT_TEXT_DIR)
text_dir = (text_dir == GTK_TEXT_DIR_LTR) ? GTK_TEXT_DIR_RTL : GTK_TEXT_DIR_LTR;
gtk_widget_set_default_direction (text_dir);
gdk_event_init_types ();