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Functions
| GogGraph * | gog_graph_dup () |
| gboolean | gog_graph_export_image () |
| void | gog_graph_force_update () |
| GSList * | gog_graph_get_data () |
| GODoc * | gog_graph_get_document () |
| void | gog_graph_get_size () |
| GSList * | gog_graph_get_supported_image_formats () |
| GogTheme * | gog_graph_get_theme () |
| unsigned | gog_graph_num_cols () |
| unsigned | gog_graph_num_rows () |
| gboolean | gog_graph_request_update () |
| GOData * | gog_graph_ref_data () |
| void | gog_graph_render_to_cairo () |
| void | gog_graph_set_size () |
| void | gog_graph_set_theme () |
| void | gog_graph_unref_data () |
| gboolean | gog_graph_validate_chart_layout () |
| GogView * | gog_graph_view_get_selection () |
| void | gog_graph_view_handle_event () |
| void | gog_graph_view_set_selection () |
Properties
| GODoc * | document | Read / Write |
| gdouble | height-pts | Read / Write |
| GogTheme * | theme | Read / Write |
| gchar * | theme-name | Read / Write |
| gdouble | width-pts | Read / Write |
| GogRenderer * | renderer | Write |
Object Hierarchy
GObject
├── GogObject
│ ╰── GogStyledObject
│ ╰── GogOutlinedObject
│ ╰── GogGraph
╰── GogView
╰── GogOutlinedView
╰── GogGraphView
Description
A graph (in the abstract sense) in GOffice is an hierarical object model, with a GogGraph object as the top-level object. Objects that can be part of a graph is a subclass of GogObject. Those, and related objects have the prefix "Gog" in the class name. See GogObject for how to manipulate the object model, and the individual classes for specifics.
A GogGraph can have 1 or more children in the roles "Chart" and "Title".
Functions
gog_graph_export_image ()
gboolean gog_graph_export_image (GogGraph *graph,GOImageFormat format,GsfOutput *output,double x_dpi,double y_dpi);
Exports an image of graph
in given format
, writing results in a GsfOutput stream.
If export format type is a bitmap one, it computes image size with x_dpi, y_dpi and
graph
size (see gog_graph_get_size()
gog_graph_force_update ()
void
gog_graph_force_update (GogGraph *graph);
Do an update now if one has been queued.
gog_graph_get_document ()
GODoc *
gog_graph_get_document (GogGraph *graph);
Retrieves the GODoc for graph
.
gog_graph_get_size ()
void gog_graph_get_size (GogGraph *graph,double *width,double *height);
FIXME Returns the logical size of graph, in points.
gog_graph_get_supported_image_formats ()
GSList *
gog_graph_get_supported_image_formats (void);
Builds a list of supported formats for image export.
gog_graph_request_update ()
gboolean
gog_graph_request_update (GogGraph *graph);
queue an update if one had not already be queued.
gog_graph_ref_data ()
GOData * gog_graph_ref_data (GogGraph *graph,GOData *dat);
Returns
dat
or something equivalent to it that already exists in the graph.
Otherwise use dat
. Adds a gobject ref to the target and increments a
count of the number of refs made from this GogGraph.
[transfer full]
gog_graph_render_to_cairo ()
void gog_graph_render_to_cairo (GogGraph *graph,cairo_t *cairo,double w,double h);
Renders a graph using cairo
. w
and h
are the requested width an height of the rendered graph, in the current cairo
coordinate space. This function is not suited for multiple rendering of the same graph. gog_renderer_render_to cairo or gog_renderer_update/gog_renderer_get_cairo_surface should be used instead.
gog_graph_set_size ()
void gog_graph_set_size (GogGraph *graph,double width,double height);
Sets the logical size of graph, given in points.
gog_graph_validate_chart_layout ()
gboolean
gog_graph_validate_chart_layout (GogGraph *graph);
Check the layout of the chart grid and ensure that there are no empty cols or rows, and resize as necessary
gog_graph_view_handle_event ()
void gog_graph_view_handle_event (GogGraphView *gview,GdkEvent *event,double x_offset,double y_offset);
Handle events.
gog_graph_view_set_selection ()
void gog_graph_view_set_selection (GogGraphView *gview,GogObject *gobj);
Sets gobj
as current selection. If gobj
is different from previously
selected object, a selection-changed signal is emitted.
Types and Values
GogGraphClass
typedef struct {
GogOutlinedObjectClass base;
/* signals */
void (*add_data) (GogGraph *graph, GOData *input);
void (*remove_data) (GogGraph *graph, GOData *input);
} GogGraphClass;
Members
GogOutlinedObjectClass |
base class. |
|
implements the "add-data" signal. |
||
implements the "remove-data" signal. |
Property Details
The “document” property
“document” GODoc *
the document for this graph.
Owner: GogGraph
Flags: Read / Write
The “height-pts” property
“height-pts” gdouble
Logical graph height, in points.
Owner: GogGraph
Flags: Read / Write
Allowed values: >= 0
Default value: 226.772
The “theme” property
“theme” GogTheme *
The theme for elements of the graph.
Owner: GogGraph
Flags: Read / Write
The “theme-name” property
“theme-name” gchar *
The name of the theme for elements of the graph.
Owner: GogGraph
Flags: Read / Write
Default value: "default"
The “width-pts” property
“width-pts” gdouble
Logical graph width, in points.
Owner: GogGraph
Flags: Read / Write
Allowed values: >= 0
Default value: 340.157
The “renderer” property
“renderer” GogRenderer *
the renderer for this view.
Owner: GogGraphView
Flags: Write
Signal Details
The “add-data” signal
void user_function (GogGraph *graph, GObject *data, gpointer user_data)
The ::add-data signal is emitted BEFORE data
has been added.
Parameters
graph |
the object on which the signal is emitted |
|
data |
The new GOData being added to |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last
The “remove-data” signal
void user_function (GogGraph *graph, GObject *data, gpointer user_data)
The ::remove-data signal is emitted BEFORE data
has been removed.
Parameters
graph |
the object on which the signal is emitted |
|
data |
The new GOData being removed to |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last
The “selection-changed” signal
void user_function (GogGraphView *goggraphview, GObject *arg1, gpointer user_data)
Flags: Run Last