Simulator: improve simulation of transflective screens

This patch simulates the three possible states of a transflective
LCD: backlight on (bright screen as usual), backlight off (dimmed
screen) and LCD off (black screen).
Makes use of already defined 'BACKLIGHT_OFF_ALPHA'.

Change-Id: I9b0fc79b8d50c29e024ba1e6d9c2501119a7e0e0

1 files changed, 3 insertions, 0 deletions

diff --git a/uisimulator/common/lcd-common.c b/uisimulator/common/lcd-common.c
index 47ca114cbc..9e01f3eda6 100644
--- a/uisimulator/common/lcd-common.c
+++ b/uisimulator/common/lcd-common.c
@@ -78,6 +78,9 @@ void lcd_remote_set_invert_display(bool invert)
 void lcd_sleep(void)
 {
     lcd_sleeping = true;
+#ifdef HAVE_TRANSFLECTIVE_LCD
+    sim_backlight(0);   /* completely blacken the screen */
+#endif
 }
 
 void lcd_awake(void)