|  |  |  | GtkDatabox Reference Manual |  | 
|---|---|---|---|---|
#include <gtkdatabox_graph.h>
                    GtkDataboxGraphPrivate;
                    GtkDataboxGraph;
GdkGC*              gtk_databox_graph_get_gc            (GtkDataboxGraph *graph);
void                gtk_databox_graph_set_gc            (GtkDataboxGraph *graph,
                                                         GdkGC *gc);
void                gtk_databox_graph_set_hide          (GtkDataboxGraph *graph,
                                                         gboolean hide);
gboolean            gtk_databox_graph_get_hide          (GtkDataboxGraph *graph);
void                gtk_databox_graph_set_color         (GtkDataboxGraph *graph,
                                                         GdkColor *color);
GdkColor*           gtk_databox_graph_get_color         (GtkDataboxGraph *graph);
void                gtk_databox_graph_set_size          (GtkDataboxGraph *graph,
                                                         gint size);
gint                gtk_databox_graph_get_size          (GtkDataboxGraph *graph);
gint                gtk_databox_graph_calculate_extrema (GtkDataboxGraph *graph,
                                                         gfloat *min_x,
                                                         gfloat *max_x,
                                                         gfloat *min_y,
                                                         gfloat *max_y);
void                gtk_databox_graph_draw              (GtkDataboxGraph *graph,
                                                         GtkDatabox *box);
GdkGC*              gtk_databox_graph_create_gc         (GtkDataboxGraph *graph,
                                                         GtkDatabox *box);
"color" gpointer : Read / Write "hide" gboolean : Read / Write "size" gint : Read / Write
GtkDataboxGraphs can display data or other things in a GtkDatabox widget.
This class is just the basic interface. Other graph classes are derived from this class and implement some real things.
typedef struct _GtkDataboxGraphPrivate GtkDataboxGraphPrivate;
A private data structure used by the GtkDataboxGraph. It shields all internal things from developers who are just using the object.
typedef struct _GtkDataboxGraph GtkDataboxGraph;
The GtkDataboxGraph is the base class for all kinds of graphs (e.g. lines, points, decorations like coordinate crosses) to be shown in a GtkDatabox wiget.
Implemented by _GtkDataboxGraph
GdkGC* gtk_databox_graph_get_gc (GtkDataboxGraph *graph);
Gets the current graphics context of the graph.
| 
 | A GtkDataboxGraph object | 
| Returns : | The current graphics context of the graph. | 
void gtk_databox_graph_set_gc (GtkDataboxGraph *graph, GdkGC *gc);
Sets the graphics context which the GtkDataboxGraph object is supposed to be using when drawing itself.
| 
 | A GtkDataboxGraph object | 
| 
 | Graphics contex for the graph object | 
void gtk_databox_graph_set_hide (GtkDataboxGraph *graph, gboolean hide);
Hidden graphs are not shown, when the GtkDatabox containing them is redrawn.
| 
 | A GtkDataboxGraph object | 
| 
 | Declares whether should be hidden (true) or not (false). | 
gboolean gtk_databox_graph_get_hide (GtkDataboxGraph *graph);
Gets the current "hide" status.
| 
 | A GtkDataboxGraph object | 
| Returns : | Whether the graph is hidden (true) or not (false). | 
void gtk_databox_graph_set_color (GtkDataboxGraph *graph, GdkColor *color);
Sets the color which the GtkDataboxGraph object is supposed to be using when drawing itself.
| 
 | A GtkDataboxGraph object | 
| 
 | Color which is to be used by the graph object | 
GdkColor* gtk_databox_graph_get_color (GtkDataboxGraph *graph);
Gets the current color of the graph elements (e.g. points).
| 
 | A GtkDataboxGraph object | 
| Returns : | The color of the graph. | 
void gtk_databox_graph_set_size (GtkDataboxGraph *graph, gint size);
Sets the size (e.g. line width) which the GtkDataboxGraph object is supposed to be using when drawing itself.
| 
 | A GtkDataboxGraph object | 
| 
 | Size of graph elements for the graph object | 
gint gtk_databox_graph_get_size (GtkDataboxGraph *graph);
Gets the size of the graph elements (e.g. the line width).
| 
 | A GtkDataboxGraph object | 
| Returns : | size of the graph elements | 
gint gtk_databox_graph_calculate_extrema (GtkDataboxGraph *graph, gfloat *min_x, gfloat *max_x, gfloat *min_y, gfloat *max_y);
Virtual function which determines the minimum and maximum x and y values of the values of this GtkDataboxGraph object if applicable (there are graphs which do not contain data).
| 
 | A GtkDataboxGraph object | 
| 
 | Will be filled with the lowest x value of the dataset | 
| 
 | Will be filled with the highest x value of the dataset | 
| 
 | Will be filled with the lowest y value of the dataset | 
| 
 | Will be filled with the highest y value of the dataset | 
| Returns : | 0 on success, -1 if no data is available, | 
void gtk_databox_graph_draw (GtkDataboxGraph *graph, GtkDatabox *box);
Virtual function which draws the GtkDataboxGraph on the drawing area of the GtkDatabox object.
Typically this function is called by GtkDatabox objects.
| 
 | A GtkDataboxGraph object | 
| 
 | A GtkDatabox object | 
GdkGC* gtk_databox_graph_create_gc (GtkDataboxGraph *graph, GtkDatabox *box);
Virtual function which creates a graphics context for the graph. 
Typically called by derived graph objects when the graphics context is needed for the first time.
| 
 | A GtkDataboxGraph object | 
| 
 | A GtkDatabox object | 
| Returns : | The new graphics context. |