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GOGraphWidget

GOGraphWidget — Widget showing a GogGraph.

Properties

gdouble aspect-ratio Read / Write / Construct
GogGraph * graph Read / Write / Construct Only
gdouble hres Read / Write / Construct Only
gdouble vres Read / Write / Construct Only

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GtkWidget
            ╰── GtkContainer
                ╰── GtkLayout
                    ╰── GOGraphWidget

Implemented Interfaces

GOGraphWidget implements AtkImplementorIface, GtkBuildable and GtkScrollable.

Description

Utility widget for showing a GogGraph.

Functions

go_graph_widget_get_chart ()

GogChart *
go_graph_widget_get_chart (GOGraphWidget *widget);

Parameters

widget

GOGraphWidget

 

Returns

the GogChart created by go_graph_widget_new().

[transfer none]


go_graph_widget_get_graph ()

GogGraph *
go_graph_widget_get_graph (GOGraphWidget *widget);

Parameters

widget

GOGraphWidget

 

Returns

the GogGraph embedded in the widget.

[transfer none]


go_graph_widget_get_renderer ()

GogRenderer *
go_graph_widget_get_renderer (GOGraphWidget *widget);

Parameters

widget

GOGraphWidget

 

Returns

the GogRenderer used by the widget.

[transfer none]


go_graph_widget_new ()

GtkWidget *
go_graph_widget_new (GogGraph *graph);

Creates a new GOGraphWidget with an embedded GogGraph. If graph is NULL, the graph will be auto-created, and a GogChart will be added graph.

Parameters

graph

GogGraph

 

Returns

the newly created GOGraphWidget.


go_graph_widget_set_size_mode ()

void
go_graph_widget_set_size_mode (GOGraphWidget *widget,
                               GOGraphWidgetSizeMode size_mode,
                               int width,
                               int height);

Sets the size mode of the GOGraphWidget. It is used to determine the size and position of the drawn chart. The following sizing modes are supported:

GO_GRAPH_WIDGET_SIZE_MODE_FIT, aspect ratio set. The aspect ratio is guaranteed to be maintained, i.e. the graph is never squeezed, and will always fit into the visible area.

GO_GRAPH_WIDGET_SIZE_MODE_FIT, no aspect ratio set. The aspect ratio is adapted to make the graph exactly fit into the visible area.

GO_GRAPH_WIDGET_SIZE_MODE_FIT_WIDTH, aspect ratio set. The aspect ratio is guaranteed to be maintained, i.e. the graph is never squezzed, and will always occupy the whole width of the visible area.

GO_GRAPH_WIDGET_SIZE_MODE_FIT_HEIGHT, aspect ratio set. The aspect ratio is guaranteed to be maintained, i.e. the graph is never squezzed, and will always occupy the whole height of the visible area.

GO_GRAPH_WIDGET_SIZE_MODE_FIT_FIXED_SIZE, no aspect ratio set. The graph will occupy the area specified by width/height, its aspect ratio will be determined by height/width.

Parameters

widget

GOGraphWidget

 

size_mode

GOGraphWidgetSizeMode

 

width

in pixels

 

height

in pixels

 

Types and Values

GOGraphWidget

typedef struct _GOGraphWidget GOGraphWidget;


GOGraphWidgetClass

typedef struct _GOGraphWidgetClass GOGraphWidgetClass;


enum GOGraphWidgetSizeMode

Members

GO_GRAPH_WIDGET_SIZE_MODE_FIT

fits the allocated size, conserving the aspect ratio.

 

GO_GRAPH_WIDGET_SIZE_MODE_FIT_WIDTH

fits the width, conserving the aspect ratio.

 

GO_GRAPH_WIDGET_SIZE_MODE_FIT_HEIGHT

fits the width, conserving the aspect ratio.

 

GO_GRAPH_WIDGET_SIZE_MODE_FIXED_SIZE

use original size.

 

Property Details

The “aspect-ratio” property

  “aspect-ratio”             gdouble

Aspect ratio for rendering the graph, used only if greater than 0.

Flags: Read / Write / Construct

Default value: -1


The “graph” property

  “graph”                    GogGraph *

The graph to render.

Flags: Read / Write / Construct Only


The “hres” property

  “hres”                     gdouble

Assumed horizontal screen resolution in pixels per inch.

Flags: Read / Write / Construct Only

Allowed values: >= 1

Default value: 96


The “vres” property

  “vres”                     gdouble

Assumed vertical screen resolution in pixels per inch.

Flags: Read / Write / Construct Only

Allowed values: >= 1

Default value: 96

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