gtk.ProgressBar
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## gtk.ProgressBar

gtk.ProgressBar — a widget which indicates progress visually.

## Synopsis

    class gtk.ProgressBar(gtk.Progress):
        gtk.ProgressBar()
        def pulse()
        def set_text(text)
        def set_fraction(fraction)
        def set_pulse_step(fraction)
        def set_orientation(orientation)
        def get_text()
        def get_fraction()
        def get_pulse_step()
        def get_orientation()
        def set_ellipsize(mode)
        def get_ellipsize()

## Ancestry

    +-- gobject.GObject
      +-- gtk.Object
        +-- gtk.Widget
          +-- gtk.Progress
            +-- gtk.ProgressBar

## Implemented Interfaces

`gtk.ProgressBar` implements `gtk.Buildable`

## gtk.ProgressBar Properties

gtk.Object Properties

gtk.Widget Properties

gtk.Progress Properties

"discrete-blocks" | Read-Write | The number of discrete blocks in a progress bar (when shown in the discrete style)
"ellipsize" | Read-Write | The preferred place to ellipsize the string, if the progressbar does not have enough room to display the entire string, specified as one of the Pango Ellipsize Mode Constants. Note that setting this property to a value other than `pango.ELLIPSIZE_NONE` has the side-effect that the progressbar requests only enough space to display the ellipsis "...". Another means to set a progressbar's width is the `gtk.Widget.set_size_request()`. This property is available in GTK+ 2.6 and above.
"fraction" | Read-Write | The fraction of total work that has been completed
"orientation" | Read-Write | The orientation and growth direction of the progress bar - one of the GTK ProgressBar Orientation Constants: `gtk.PROGRESS_LEFT_TO_RIGHT`, `gtk.PROGRESS_RIGHT_TO_LEFT`, `gtk.PROGRESS_BOTTOM_TO_TOP`, `gtk.PROGRESS_TOP_TO_BOTTOM`
"pulse-step" | Read-Write | The fraction of total progress to move the bouncing block when pulsed
"text" | Read-Write | The text to be displayed in the progress bar

## gtk.ProgressBar Style Properties

gtk.Widget Style Properties

## gtk.ProgressBar Signal Prototypes

gobject.GObject Signal Prototypes

gtk.Object Signal Prototypes

gtk.Widget Signal Prototypes

## Description

The `gtk.ProgressBar` is typically used to display the progress of a long running operation. It provides a visual clue that processing is underway. The `gtk.ProgressBar` can be used in two different modes: percentage mode and activity mode.

When an application can determine how much work needs to take place (e.g. read a fixed number of bytes from a file) and can monitor its progress, it can use the `gtk.ProgressBar` in percentage mode and the user sees a growing bar indicating the percentage of the work that has been completed. In this mode, the application is required to call the `set_fraction`() method periodically to update the progress bar.

When an application has no accurate way of knowing the amount of work to do, it can use the `gtk.ProgressBar` in activity mode, which shows activity by a block moving back and forth within the progress area. In this mode, the application is required to call the `pulse`() method periodically to update the progress bar.

There is quite a bit of flexibility provided to control the appearance of the `gtk.ProgressBar`. Methods are provided to control the orientation of the bar, optional text can be displayed along with the bar, and the step size used in activity mode can be set.

## Constructor

        gtk.ProgressBar()

Returns : | a new `gtk.ProgressBar` widget

Creates a new `gtk.Progressbar` widget.

## Methods

### gtk.ProgressBar.pulse

        def pulse()

The `pulse`() method nudges the progressbar to indicate that some progress has been made, but you don't know how much. This method also changes progress bar mode to "activity mode," where a block bounces back and forth. Each call to the `pulse`() method causes the block to move by a little bit (the amount of movement per pulse is determined by the `set_pulse_step`() method).

### gtk.ProgressBar.set_text

        def set_text(text)

`text` : | a UTF-8 string

The `set_text`() method superimposes the text specified by `text` on the progress bar.

### gtk.ProgressBar.set_fraction

        def set_fraction(fraction)

`fraction` : | the fraction of the task that's been completed

The `set_fraction`() method causes the progress bar to "fill in" the portion of the bar specified by `fraction`. The value of `fraction` should be between 0.0 and 1.0.

### gtk.ProgressBar.set_pulse_step

        def set_pulse_step(fraction)

`fraction` : | a value between 0.0 and 1.0

The `set_pulse_step`() method sets the portion (specified by `fraction`) of the total progress bar length to move the bouncing block for each call to the `pulse`() method.

### gtk.ProgressBar.set_orientation

        def set_orientation(orientation)

`orientation` : | the orientation of the progress bar

The `set_orientation`() method switches the progress bar to a different orientation as specified by the value of `orientation`. The value of `orientation` must be one of the GTK ProgressBar Orientation Constants.

### gtk.ProgressBar.get_text

        def get_text()

Returns : | the text, or `None`

The `get_text`() method returns the text superimposed on the progress bar. If there is no superimposed text this method returns `None`.

### gtk.ProgressBar.get_fraction

        def get_fraction()

Returns : | a fraction from 0.0 to 1.0

The `get_fraction`() method returns the current fraction of the task that's been set by the `set_fraction`() method .

### gtk.ProgressBar.get_pulse_step

        def get_pulse_step()

Returns : | a fraction from 0.0 to 1.0

The `get_pulse_step`() method returns the pulse step set with the `set_pulse_step`().

### gtk.ProgressBar.get_orientation

        def get_orientation()

Returns : | the orientation of the progress bar

The `get_orientation`() method returns the current progress bar orientation. See the `set_orientation`() method for information about the orientation values.

### gtk.ProgressBar.set_ellipsize

        def set_ellipsize(mode)

`mode` : | one of the Pango Ellipsize Mode Constants

### Note

This method is available in PyGTK 2.6 and above.

The `set_ellipsize`() method sets the mode used to ellipsize (add an ellipsis "...") the text if there is not enough space to render the entire string to the value specified by `mode`. `mode` must be one of the Pango Ellipsize Mode Constants

### gtk.ProgressBar.get_ellipsize

        def get_ellipsize()

Returns : | the mode used to ellipsize text

### Note

This method is available in PyGTK 2.6 and above.

The `get_ellipsize`() method returns the mode used to ellipsize text when there is not enough space. See the `set_ellipsize`() method for information.

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