Header: do not let multi-column meters expand to empty neighbors

Extending to right neighbors is intended for text meters with an
overlong content, so the whole text is shown if possible.
Multi column meters, like the combined memory and swap meter, position
its text depending on the given total width; keep the position to the
original assigned header slot.

Short term resolution for #796

1 files changed, 2 insertions, 0 deletions

diff --git a/Meter.h b/Meter.h
index da5792f9..0e6b3f9f 100644
--- a/Meter.h
+++ b/Meter.h
@@ -73,6 +73,7 @@ typedef struct MeterClass_ {
    const char* const caption;              /* prefix in the actual header */
    const char* const description;          /* optional meter description in header setup menu */
    const uint8_t maxItems;
+   const bool isMultiColumn;               /* whether the meter draws multiple sub-columns (defaults to false) */
 } MeterClass;
 
 #define As_Meter(this_)                ((const MeterClass*)((this_)->super.klass))
@@ -92,6 +93,7 @@ typedef struct MeterClass_ {
 #define Meter_attributes(this_)        As_Meter(this_)->attributes
 #define Meter_name(this_)              As_Meter(this_)->name
 #define Meter_uiName(this_)            As_Meter(this_)->uiName
+#define Meter_isMultiColumn(this_)     As_Meter(this_)->isMultiColumn
 
 typedef struct GraphData_ {
    struct timeval time;