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enum GwyUnitsPlacement; struct GwyRuler; struct GwyRulerClass; void gwy_ruler_set_range (GwyRuler *ruler, gdouble lower, gdouble upper, gdouble position, gdouble max_size); void gwy_ruler_draw_ticks (GwyRuler *ruler); void gwy_ruler_draw_pos (GwyRuler *ruler); void gwy_ruler_get_range (GwyRuler *ruler, gdouble *lower, gdouble *upper, gdouble *position, gdouble *max_size); void gwy_ruler_set_units (GwyRuler *ruler, GwySIUnit *units); GwySIUnit* gwy_ruler_get_units (GwyRuler *ruler); GwyUnitsPlacement gwy_ruler_get_units_placement (GwyRuler *ruler); void gwy_ruler_set_units_placement (GwyRuler *ruler, GwyUnitsPlacement placement);
GObject +----GtkObject +----GtkWidget +----GwyRuler
GwyRuler implements AtkImplementorIface.
"lower" gdouble : Read / Write "max-size" gdouble : Read / Write "position" gdouble : Read / Write "units-placement" guint : Read / Write "upper" gdouble : Read / Write
typedef enum { GWY_UNITS_PLACEMENT_NONE, GWY_UNITS_PLACEMENT_AT_ZERO } GwyUnitsPlacement;
struct GwyRulerClass { GtkWidgetClass parent_class; void (*draw_ticks) (GwyRuler *ruler); void (*draw_pos) (GwyRuler *ruler); gpointer reserved1; gpointer reserved2; };
void gwy_ruler_set_range (GwyRuler *ruler, gdouble lower, gdouble upper, gdouble position, gdouble max_size);
Sets range and current value of a ruler.
ruler: | A GwyRuler |
lower: | Lower limit of the ruler. |
upper: | Upper limit of the ruler. |
position: | Current position of the mark on the ruler. |
max_size: | Maximum value used for calculating size of text labels. |
void gwy_ruler_get_range (GwyRuler *ruler, gdouble *lower, gdouble *upper, gdouble *position, gdouble *max_size);
Retrieves values indicating the range and current position of a GwyRuler. See gwy_ruler_set_range().
ruler: | A GwyRuler |
lower: | Location to store lower limit of the ruler, or NULL |
upper: | Location to store upper limit of the ruler, or NULL |
position: | Location to store the current position of the mark on the ruler, or NULL |
max_size: | Location to store the maximum size of the ruler used when calculating the space to leave for the text, or NULL. |
void gwy_ruler_set_units (GwyRuler *ruler, GwySIUnit *units);
Sets the base units to display to units.
Setting units to NULL effectively disables them.
ruler: | A GwyRuler. |
units: | The base units this ruler should display. |
GwySIUnit* gwy_ruler_get_units (GwyRuler *ruler);
Returns the base units ruler uses.
ruler: | A GwyRuler. |
Returns : | The units the rules uses. |
GwyUnitsPlacement gwy_ruler_get_units_placement (GwyRuler *ruler);
Gets current units placement of ruler ruler.
ruler: | A GwyRuler |
Returns : | The units placement. |
void gwy_ruler_set_units_placement (GwyRuler *ruler, GwyUnitsPlacement placement);
Sets whether and where units should be placed on the ruler.
ruler: | A GwyRuler |
placement: | Units placement specification. |
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