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Goffice Reference Manual | ![]() |
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Top | Description | Object Hierarchy | Implemented Interfaces | Properties | Signals |
GogGraph; GogGraphClass; gboolean gog_graph_validate_chart_layout (GogGraph *graph); unsigned gog_graph_num_cols (GogGraph const *graph); unsigned gog_graph_num_rows (GogGraph const *graph); GogGraph * gog_graph_dup (GogGraph const *graph); GogTheme * gog_graph_get_theme (GogGraph const *graph); void gog_graph_set_theme (GogGraph *graph, GogTheme *theme); GSList * gog_graph_get_data (GogGraph const *graph); GOData * gog_graph_ref_data (GogGraph *graph, GOData *dat); void gog_graph_unref_data (GogGraph *graph, GOData *dat); void gog_graph_get_size (GogGraph *graph, double *width, double *height); void gog_graph_set_size (GogGraph *graph, double width, double height); GSList * gog_graph_get_supported_image_formats (void); gboolean gog_graph_export_image (GogGraph *graph, GOImageFormat format, GsfOutput *output, double x_dpi, double y_dpi); void gog_graph_render_to_cairo (GogGraph *graph, cairo_t *cairo, double w, double h); GogGraphView; void gog_graph_view_handle_event (GogGraphView *gview, GdkEvent *event, double x_offset, double y_offset); GogView * gog_graph_view_get_selection (GogGraphView *gview); void gog_graph_view_set_selection (GogGraphView *gview, GogObject *gobj);
GObject +----GogObject +----GogStyledObject +----GogOutlinedObject +----GogGraph
GObject +----GogView +----GogOutlinedView +----GogGraphView
"document" GODoc* : Read / Write "height-pts" gdouble : Read / Write "theme" GogTheme* : Read / Write "theme-name" gchar* : Read / Write "width-pts" gdouble : Read / Write "renderer" GogRenderer* : Write
typedef struct { GogOutlinedObjectClass base; /* signals */ void (*add_data) (GogGraph *graph, GOData *input); void (*remove_data) (GogGraph *graph, GOData *input); } GogGraphClass;
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
GogGraph * gog_graph_dup (GogGraph const *graph);
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GogGraph |
Returns : |
a deep copy of graph .
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GSList * gog_graph_get_data (GogGraph const *graph);
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GogGraph |
Returns : |
a list of the GOData objects that are data to the graph. The caller should _not_ modify or free the list. |
void gog_graph_get_size (GogGraph *graph, double *width, double *height);
FIXME Returns the logical size of graph, in points.
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GogGraph |
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logical width in pts |
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logical height in pts |
void gog_graph_set_size (GogGraph *graph, double width, double height);
Sets the logical size of graph, given in points.
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GogGraph |
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logical width in pts |
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logical height in pts |
GSList * gog_graph_get_supported_image_formats (void);
Builds a list of supported formats for image export.
Returns : |
a GSList of GOImageFormat. |
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()
).
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.
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a GogGraph |
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a cairo context |
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width |
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height |
void gog_graph_view_handle_event (GogGraphView *gview, GdkEvent *event, double x_offset, double y_offset);
Handle events.
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GogGraphView |
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GdkEvent |
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in pixels |
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in pixels |
GogView * gog_graph_view_get_selection (GogGraphView *gview);
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GogGraphView |
Returns : |
current selected view. |
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.
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GogGraphView |
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new selected object |
"height-pts"
property"height-pts" gdouble : Read / Write
Logical graph heigth, in points.
Allowed values: >= 0
Default value: 226.772
"theme-name"
property"theme-name" gchar* : Read / Write
The name of the theme for elements of the graph.
Default value: "default"
"width-pts"
property"width-pts" gdouble : Read / Write
Logical graph width, in points.
Allowed values: >= 0
Default value: 340.157
"add-data"
signalvoid user_function (GogGraph *graph, GObject *data, gpointer user_data) : Run Last
The ::add-data signal is emitted BEFORE data
has been added.
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the object on which the signal is emitted |
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The new GOData being added to graph
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user data set when the signal handler was connected. |
"remove-data"
signalvoid user_function (GogGraph *graph, GObject *data, gpointer user_data) : Run Last
The ::remove-data signal is emitted BEFORE data
has been removed.
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the object on which the signal is emitted |
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The new GOData being removed to graph
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user data set when the signal handler was connected. |
"selection-changed"
signalvoid user_function (GogGraphView *goggraphview, GObject *arg1, gpointer user_data) : Run Last
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the object which received the signal. |
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user data set when the signal handler was connected. |