forked from AuroraMiddleware/gtk
4887593344
Sat Nov 2 12:46:16 2002 Owen Taylor <otaylor@redhat.com>
* gdk-pixbuf/Makefile.am: Remove rules for generation
of version.xml, which was causing make to always
rebuild the HTML file, and didn't seem to be used.
* gtk/tmpl/gtkliststore.sgml: SGML fixes.
320 lines
7.0 KiB
Plaintext
320 lines
7.0 KiB
Plaintext
<!-- ##### SECTION Title ##### -->
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GtkProgressBar
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<!-- ##### SECTION Short_Description ##### -->
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a widget which indicates progress visually.
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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The #GtkProgressBar is typically used to display the progress of a long
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running operation. It provides a visual clue that processing
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is underway. The #GtkProgressBar can be used in two different
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modes: percentage mode and activity mode.
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</para>
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<para>
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When an application can determine how much work needs to take place
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(e.g. read a fixed number of bytes from a file) and can monitor its
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progress, it can use the #GtkProgressBar in percentage mode and the user
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sees a growing bar indicating the percentage of the work that has
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been completed. In this mode, the application is required to call
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gtk_progress_bar_set_fraction() periodically to update the progress bar.
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</para>
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<para>
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When an application has no accurate way of knowing the amount of work
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to do, it can use the #GtkProgressBar in activity mode, which shows activity
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by a block moving back and forth within the progress area. In this mode,
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the application is required to call gtk_progress_bar_pulse() perodically
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to update the progress bar.
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</para>
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<para>
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There is quite a bit of flexibility provided to control the appearance
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of the #GtkProgressBar. Functions are provided to control the
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orientation of the bar, optional text can be displayed along with
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the bar, and the step size used in activity mode can be set.
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</para>
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<note>
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<para>
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The #GtkProgressBar/#GtkProgress API in GTK 1.2 was bloated, needlessly complex
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and hard to use properly. Therefore #GtkProgress has been deprecated
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completely and the #GtkProgressBar API has been reduced to the following 9
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functions: gtk_progress_bar_new(), gtk_progress_bar_pulse(), gtk_progress_bar_set_text(),
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gtk_progress_bar_set_fraction(), gtk_progress_bar_set_pulse_step(),
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gtk_progress_bar_set_orientation(), gtk_progress_bar_get_text(),
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gtk_progress_bar_get_fraction(), gtk_progress_bar_get_pulse_step(). These have
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been grouped at the beginning of this section, followed by a large chunk of
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deprecated 1.2 compatibility functions.
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</para>
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</note>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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</para>
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<!-- ##### STRUCT GtkProgressBar ##### -->
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<para>
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The #GtkProgressBar-struct struct contains private data only,
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and should be accessed using the functions below.
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</para>
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<!-- ##### FUNCTION gtk_progress_bar_new ##### -->
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<para>
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Creates a new #GtkProgressBar.
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</para>
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@Returns: a #GtkProgressBar.
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<!-- ##### FUNCTION gtk_progress_bar_pulse ##### -->
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<para>
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</para>
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@pbar:
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<!-- ##### FUNCTION gtk_progress_bar_set_text ##### -->
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<para>
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</para>
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@pbar:
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@text:
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<!-- ##### FUNCTION gtk_progress_bar_set_fraction ##### -->
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<para>
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</para>
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@pbar:
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@fraction:
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<!-- ##### FUNCTION gtk_progress_bar_set_pulse_step ##### -->
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<para>
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</para>
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@pbar:
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@fraction:
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<!-- ##### FUNCTION gtk_progress_bar_set_orientation ##### -->
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<para>
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</para>
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@pbar:
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@orientation:
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<!-- ##### ENUM GtkProgressBarOrientation ##### -->
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<para>
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An enumeration representing possible orientations and growth
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directions for the visible progress bar.
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<informaltable pgwide="1" frame="none" role="enum">
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<tgroup cols="2"><colspec colwidth="2*"/><colspec colwidth="8*"/>
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<tbody>
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<row>
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<entry>GTK_PROGRESS_LEFT_TO_RIGHT</entry>
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<entry>A horizontal progress bar growing from left to right.</entry>
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</row>
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<row>
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<entry>GTK_PROGRESS_RIGHT_TO_LEFT</entry>
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<entry>A horizontal progress bar growing from right to left.</entry>
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</row>
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<row>
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<entry>GTK_PROGRESS_BOTTOM_TO_TOP</entry>
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<entry>A vertical progress bar growing from bottom to top.</entry>
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</row>
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<row>
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<entry>GTK_PROGRESS_TOP_TO_BOTTOM</entry>
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<entry>A vertical progress bar growing from top to bottom.</entry>
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</row>
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</tbody></tgroup></informaltable>
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</para>
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@GTK_PROGRESS_LEFT_TO_RIGHT:
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@GTK_PROGRESS_RIGHT_TO_LEFT:
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@GTK_PROGRESS_BOTTOM_TO_TOP:
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@GTK_PROGRESS_TOP_TO_BOTTOM:
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<!-- ##### FUNCTION gtk_progress_bar_get_text ##### -->
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<para>
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</para>
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@pbar:
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@Returns:
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<!-- ##### FUNCTION gtk_progress_bar_get_fraction ##### -->
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<para>
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</para>
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@pbar:
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@Returns:
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<!-- ##### FUNCTION gtk_progress_bar_get_pulse_step ##### -->
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<para>
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</para>
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@pbar:
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@Returns:
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<!-- ##### FUNCTION gtk_progress_bar_get_orientation ##### -->
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<para>
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</para>
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@pbar:
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@Returns:
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<!-- ##### FUNCTION gtk_progress_bar_new_with_adjustment ##### -->
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<para>
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Creates a new #GtkProgressBar with an associated #GtkAdjustment.
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</para>
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@adjustment: a #GtkAdjustment.
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@Returns: a #GtkProgressBar.
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<!-- ##### FUNCTION gtk_progress_bar_set_bar_style ##### -->
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<para>
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Sets the style of the #GtkProgressBar. The default style is
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%GTK_PROGRESS_CONTINUOUS.
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</para>
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@pbar: a #GtkProgressBar.
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@style: a #GtkProgressBarStyle value indicating the desired style.
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<!-- ##### ENUM GtkProgressBarStyle ##### -->
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<para>
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An enumeration representing the styles for drawing the progress bar.
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<informaltable pgwide="1" frame="none" role="enum">
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<tgroup cols="2"><colspec colwidth="2*"/><colspec colwidth="8*"/>
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<tbody>
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<row>
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<entry>GTK_PROGRESS_CONTINUOUS</entry>
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<entry>The progress bar grows in a smooth, continuous manner.</entry>
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</row>
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<row>
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<entry>GTK_PROGRESS_DISCRETE</entry>
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<entry>The progress bar grows in discrete, visible blocks.</entry>
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</row>
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</tbody></tgroup></informaltable>
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</para>
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@GTK_PROGRESS_CONTINUOUS:
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@GTK_PROGRESS_DISCRETE:
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<!-- ##### FUNCTION gtk_progress_bar_set_discrete_blocks ##### -->
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<para>
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Sets the number of blocks that the progress bar is divided into
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when the style is %GTK_PROGRESS_DISCRETE.
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</para>
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@pbar: a #GtkProgressBar.
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@blocks: number of individual blocks making up the bar.
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<!-- ##### FUNCTION gtk_progress_bar_set_activity_step ##### -->
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<para>
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Sets the step value used when the progress bar is in activity
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mode. The step is the amount by which the progress is incremented
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each iteration.
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</para>
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@pbar: a #GtkProgressBar.
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@step: the amount which the progress is incremented in activity
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mode.
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<!-- ##### FUNCTION gtk_progress_bar_set_activity_blocks ##### -->
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<para>
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Sets the number of blocks used when the progress bar is in activity
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mode. Larger numbers make the visible block smaller.
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</para>
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@pbar: a #GtkProgressBar.
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@blocks: number of blocks which can fit within the progress bar area.
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<!-- ##### FUNCTION gtk_progress_bar_update ##### -->
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<para>
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This function is deprecated. Please use gtk_progress_set_value() or
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gtk_progress_set_percentage() instead.
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</para>
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@pbar: a #GtkProgressBar.
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@percentage: the new percent complete value.
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<!-- ##### ARG GtkProgressBar:activity-blocks ##### -->
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<para>
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</para>
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<!-- ##### ARG GtkProgressBar:activity-step ##### -->
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<para>
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</para>
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<!-- ##### ARG GtkProgressBar:adjustment ##### -->
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<para>
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</para>
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<!-- ##### ARG GtkProgressBar:bar-style ##### -->
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<para>
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</para>
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<!-- ##### ARG GtkProgressBar:discrete-blocks ##### -->
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<para>
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</para>
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<!-- ##### ARG GtkProgressBar:fraction ##### -->
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<para>
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</para>
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<!-- ##### ARG GtkProgressBar:orientation ##### -->
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<para>
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</para>
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<!-- ##### ARG GtkProgressBar:pulse-step ##### -->
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<para>
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</para>
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<!-- ##### ARG GtkProgressBar:text ##### -->
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<para>
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</para>
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