| Goffice Reference Manual | ||||
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#define GOG_RENDERER_HAIRLINE_WIDTH_PTS #define GOG_RENDERER_GRIP_SIZE double gog_renderer_line_size (GogRenderer const *r,double width); double gog_renderer_pt2r_x (GogRenderer const *r,double d); double gog_renderer_pt2r_y (GogRenderer const *r,double d); double gog_renderer_pt2r (GogRenderer const *r,double d); double gog_renderer_get_hairline_width_pts (GogRenderer const *rend); void gog_renderer_stroke_serie (GogRenderer *renderer,GOPath const *path); void gog_renderer_fill_serie (GogRenderer *renderer,GOPath const *path,GOPath const *close_path); void gog_renderer_draw_shape (GogRenderer *renderer,GOPath const *path); void gog_renderer_stroke_shape (GogRenderer *renderer,GOPath const *path); void gog_renderer_fill_shape (GogRenderer *renderer,GOPath const *path); void gog_renderer_draw_circle (GogRenderer *rend,double x,double y,double r); void gog_renderer_stroke_circle (GogRenderer *rend,double x,double y,double r); void gog_renderer_fill_circle (GogRenderer *rend,double x,double y,double r); void gog_renderer_draw_rectangle (GogRenderer *rend,GogViewAllocation const *rect); void gog_renderer_stroke_rectangle (GogRenderer *rend,GogViewAllocation const *rect); void gog_renderer_fill_rectangle (GogRenderer *rend,GogViewAllocation const *rect); void gog_renderer_draw_grip (GogRenderer *renderer,double x,double y); void gog_renderer_draw_selection_rectangle (GogRenderer *renderer,GogViewAllocation const *rectangle); #define gog_renderer_in_grip (x, y, grip_x, grip_y) void gog_renderer_draw_marker (GogRenderer *rend,double x,double y); void gog_renderer_draw_text (GogRenderer *rend,char const *text,GogViewAllocation const *pos,GOAnchorType anchor,gboolean use_markup,GtkJustification justification,double width); void gog_renderer_draw_gostring (GogRenderer *rend,GOString *str,GogViewAllocation const *pos,GOAnchorType anchor,GtkJustification justification,double width); void gog_renderer_get_gostring_OBR (GogRenderer *rend,GOString *str,GOGeometryOBR *obr,double max_width); void gog_renderer_get_text_OBR (GogRenderer *rend,char const *text,gboolean use_markup,GOGeometryOBR *obr,double max_width); void gog_renderer_get_text_AABR (GogRenderer *rend,char const *text,gboolean use_markup,GOGeometryAABR *aabr,double max_width); void gog_renderer_push_style (GogRenderer *rend,GOStyle const *style); void gog_renderer_pop_style (GogRenderer *rend); void gog_renderer_push_clip (GogRenderer *rend,GOPath const *path); void gog_renderer_push_clip_rectangle (GogRenderer *rend,double x,double y,double w,double h); void gog_renderer_pop_clip (GogRenderer *rend); gboolean gog_renderer_update (GogRenderer *renderer,double w,double h); cairo_surface_t * gog_renderer_get_cairo_surface (GogRenderer *renderer); GdkPixbuf * gog_renderer_get_pixbuf (GogRenderer *renderer); void gog_renderer_request_update (GogRenderer *renderer); gboolean gog_renderer_render_to_cairo (GogRenderer *renderer,cairo_t *cairo,double width,double height); gboolean gog_renderer_export_image (GogRenderer *renderer,GOImageFormat format,GsfOutput *output,double x_dpi,double y_dpi); GogRenderer * gog_renderer_new (GogGraph *graph); void gog_renderer_draw_equation (GogRenderer *renderer,LsmDomView *mathml_view,double x,double y);
Note that GogGraph has a functions for export/rendering, so you do not always need to use a GogRenderer directly.
double gog_renderer_line_size (GogRenderer const *r,double width);
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double gog_renderer_pt2r_x (GogRenderer const *r,double d);
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double gog_renderer_pt2r_y (GogRenderer const *r,double d);
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double gog_renderer_get_hairline_width_pts (GogRenderer const *rend);
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a GogRenderer |
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the hairline width in pts. |
void gog_renderer_stroke_serie (GogRenderer *renderer,GOPath const *path);
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void gog_renderer_fill_serie (GogRenderer *renderer,GOPath const *path,GOPath const *close_path);
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void gog_renderer_draw_shape (GogRenderer *renderer,GOPath const *path);
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void gog_renderer_stroke_shape (GogRenderer *renderer,GOPath const *path);
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void gog_renderer_fill_shape (GogRenderer *renderer,GOPath const *path);
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void gog_renderer_draw_circle (GogRenderer *rend,double x,double y,double r);
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void gog_renderer_stroke_circle (GogRenderer *rend,double x,double y,double r);
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void gog_renderer_fill_circle (GogRenderer *rend,double x,double y,double r);
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void gog_renderer_draw_rectangle (GogRenderer *rend,GogViewAllocation const *rect);
A utility routine to build a closed rectangle vpath.
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a GogRenderer |
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position and extent of rectangle |
void gog_renderer_stroke_rectangle (GogRenderer *rend,GogViewAllocation const *rect);
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void gog_renderer_fill_rectangle (GogRenderer *rend,GogViewAllocation const *rect);
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void gog_renderer_draw_grip (GogRenderer *renderer,double x,double y);
Draw a grip, used for moving/resizing of objects.
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GogRenderer |
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x position of grip |
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y position of grip |
void gog_renderer_draw_selection_rectangle (GogRenderer *renderer,GogViewAllocation const *rectangle);
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void gog_renderer_draw_marker (GogRenderer *rend,double x,double y);
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GogRenderer |
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X-coordinate |
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Y-coordinate |
void gog_renderer_draw_text (GogRenderer *rend,char const *text,GogViewAllocation const *pos,GOAnchorType anchor,gboolean use_markup,GtkJustification justification,double width);
Have rend draw text in the at pos.{x,y} anchored by the anchor corner.
If pos.w or pos.h are >= 0 then clip the results to less than that size.
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GogRenderer |
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the string to draw |
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GogViewAllocation |
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GtkAnchorType how to draw relative to pos
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wether to use pango markup |
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void gog_renderer_draw_gostring (GogRenderer *rend,GOString *str,GogViewAllocation const *pos,GOAnchorType anchor,GtkJustification justification,double width);
Have rend draw layout in the at pos.{x,y} anchored by the anchor corner.
If pos.w or pos.h are >= 0 then clip the results to less than that size.
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GogRenderer |
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GogViewAllocation |
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GOAnchorType how to draw relative to pos
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void gog_renderer_get_gostring_OBR (GogRenderer *rend,GOString *str,GOGeometryOBR *obr,double max_width);
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void gog_renderer_get_text_OBR (GogRenderer *rend,char const *text,gboolean use_markup,GOGeometryOBR *obr,double max_width);
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GogRenderer |
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the string to draw |
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wether to use pango markup |
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GOGeometryOBR to store the Object Bounding Rectangle of text.
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void gog_renderer_get_text_AABR (GogRenderer *rend,char const *text,gboolean use_markup,GOGeometryAABR *aabr,double max_width);
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GogRenderer |
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the string to draw |
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whether to use pango markup |
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GOGeometryAABR to store the Axis Aligned Bounding Rectangle of text.
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void gog_renderer_push_style (GogRenderer *rend,GOStyle const *style);
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void gog_renderer_push_clip (GogRenderer *rend,GOPath const *path);
Defines the current clipping region.
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GogRenderer |
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a GOPath |
void gog_renderer_push_clip_rectangle (GogRenderer *rend,double x,double y,double w,double h);
Defines a rectangular clipping region. For efficient screen rendering, this function takes care to round the coordinates.
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GogRenderer |
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left coordinate |
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top coordinate |
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width of clipping rectangle |
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height of clipping rectangle |
void gog_renderer_pop_clip (GogRenderer *rend);
End the current clipping.
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GogRenderer |
gboolean gog_renderer_update (GogRenderer *renderer,double w,double h);
Requests a renderer update, only useful for pixbuf based renderer.
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a GogRenderer |
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requested width |
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requested height |
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TRUE if a redraw is necessary.
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cairo_surface_t * gog_renderer_get_cairo_surface (GogRenderer *renderer);
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GdkPixbuf * gog_renderer_get_pixbuf (GogRenderer *renderer);
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GogRenderer |
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current pixbuf buffer from a renderer that can render into a pixbuf.
or NULL on error.
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gboolean gog_renderer_render_to_cairo (GogRenderer *renderer,cairo_t *cairo,double width,double height);
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gboolean gog_renderer_export_image (GogRenderer *renderer,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()).
GogRenderer * gog_renderer_new (GogGraph *graph);
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graph model |
Returns : |
a new GogRenderer which can render into a pixbuf, and sets graph
as its model.
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