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fixed wording and typos in some places. added a new section "Optimizing RC

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Tue Sep 13 14:16:27 2005  Tim Janik  <timj@imendio.com>

        * gtk/tmpl/gtkrc.sgml: fixed wording and typos in some places.
        added a new section "Optimizing RC Style Matches".
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Tim Janik 2005-09-13 12:19:07 +00:00 committed by Tim Janik
parent af89d145f7
commit fbd3568e4c
8 changed files with 218 additions and 5 deletions
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5
docs/reference/ChangeLog
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@ -1,3 +1,8 @@
Tue Sep 13 14:16:27 2005 Tim Janik <timj@imendio.com>
* gtk/tmpl/gtkrc.sgml: fixed wording and typos in some places.
added a new section "Optimizing RC Style Matches".
2005-09-11 Matthias Clasen <mclasen@redhat.com>
* gdk/gdk-sections.txt: Add gdk_intern_static_string.

46
docs/reference/gdk/tmpl/gdkscreen.sgml
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@ -41,6 +41,16 @@ when GDK gets multihead support.
@gdkscreen: the object which received the signal.
<!-- ##### ARG GdkScreen:font-options ##### -->
<para>
</para>
<!-- ##### ARG GdkScreen:resolution ##### -->
<para>
</para>
<!-- ##### FUNCTION gdk_screen_get_default ##### -->
<para>
@ -275,6 +285,42 @@ when GDK gets multihead support.
@Returns:
<!-- ##### FUNCTION gdk_screen_get_font_options ##### -->
<para>
</para>
@screen:
@Returns:
<!-- ##### FUNCTION gdk_screen_set_font_options ##### -->
<para>
</para>
@screen:
@options:
<!-- ##### FUNCTION gdk_screen_get_resolution ##### -->
<para>
</para>
@screen:
@Returns:
<!-- ##### FUNCTION gdk_screen_set_resolution ##### -->
<para>
</para>
@screen:
@dpi:
<!-- ##### FUNCTION gdk_spawn_on_screen ##### -->
<para>

9
docs/reference/gdk/tmpl/properties.sgml
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@ -235,6 +235,15 @@ Finds or creates an atom corresponding to a given string.
@Returns: the atom corresponding to @atom_name.
<!-- ##### FUNCTION gdk_atom_intern_static_string ##### -->
<para>
</para>
@atom_name:
@Returns:
<!-- ##### FUNCTION gdk_atom_name ##### -->
<para>
Determines the string corresponding to an atom.

88
docs/reference/gtk/tmpl/gtkrc.sgml
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@ -51,14 +51,18 @@ attaches them to particular widgets. The attachment is done
by the <literal>widget</literal>, <literal>widget_class</literal>,
and <literal>class</literal> declarations. As an example
of such a statement:
<informalexample><programlisting>
widget "mywindow.*.GtkEntry" style "my-entry-class"
</programlisting></informalexample>
attaches the style <literal>"my-entry-class"</literal>
to all widgets whose <firstterm>widget class</firstterm>
to all widgets whose <firstterm>widget path</firstterm>
matches the <firstterm>pattern</firstterm>
<literal>"mywindow.*.GtkEntry"</literal>.
<literal>"mywindow.*.GtkEntry"</literal>. That is, all
#GtkEntry widgets which are part of a #GtkWindow named <literal>"mywindow"</literal>.
</para>
<para>
The patterns here are given in the standard shell glob
syntax. The <literal>"?"</literal> wildcard matches
@ -66,7 +70,7 @@ any character, while <literal>"*"</literal> matches
zero or more of any character. The three types of
matching are against the widget path, the
<firstterm>class path</firstterm> and the class
hierarchy. Both the widget and the class paths consists of a
hierarchy. Both the widget path and the class path consist of a
<literal>"."</literal> separated list of all the
parents of the widget and the widget itself from
outermost to innermost. The difference is that in
@ -77,9 +81,9 @@ for the class path, the class name is always used.
</para>
<para>
So, if you have a #GtkEntry named
<literal>"myentry"</literal>, inside of a of a window
<literal>"myentry"</literal>, inside of a horizontal box in a window
named <literal>"mywindow"</literal>, then the
widget path is: <literal>"mwindow.GtkHBox.myentry"</literal>
widget path is: <literal>"mywindow.GtkHBox.myentry"</literal>
while the class path is: <literal>"GtkWindow.GtkHBox.GtkEntry"</literal>.
</para>
<para>
@ -119,6 +123,80 @@ that GTK+ creates internally.
</refsect2>
<refsect2><title>Optimizing RC Style Matches</title>
<para>
Everytime a widget is created and added to the layout hierarchy of a #GtkWindow
("anchored" to be exact), a list of matching RC styles out of all RC styles read
in so far is composed.
For this, every RC style is matched against the widgets class path,
the widgets name path and widgets inheritance hierarchy.
As a consequence, significant slowdown can be caused by utilization of many
RC styles and by using RC sytle patterns that are slow or complicated to match
against a given widget.
The following ordered list provides a number of advices (prioritized by effectiveness)
to reduce the performance overhead associated with RC style matches:
<orderedlist>
<listitem><para>
Move RC styles for specific applications into RC files dedicated to those
applications and parse application specific RC files only from
applications that are affected by them.
This reduces the overall amount of RC styles that have to be considered
for a match across a group of applications.
</para></listitem>
<listitem><para>
Merge multiple styles which use the same matching rule, for instance:
<informalexample><programlisting>
style "Foo" { foo_content }
class "X" style "Foo"
style "Bar" { bar_content }
class "X" style "Bar"
</programlisting></informalexample>
is faster to match as:
<informalexample><programlisting>
style "FooBar" { foo_content bar_content }
class "X" style "FooBar"
</programlisting></informalexample>
</para></listitem>
<listitem><para>
Use of wildcards should be avoided, this can reduce the individual RC style
match to a single integer comparison in most cases.
</para></listitem>
<listitem><para>
To avoid complex recursive matching, specification of full class names
(for <literal>class</literal> matches) or full path names (for
<literal>widget</literal> and <literal>widget_class</literal> matches)
is to be preferred over shortened names
containing <literal>"*"</literal> or <literal>"?"</literal>.
</para></listitem>
<listitem><para>
If at all necessary, wildcards should only be used at the tail or head
of a pattern. This reduces the match complexity to a string comparison
per RC style.
</para></listitem>
<listitem><para>
When using wildcards, use of <literal>"?"</literal> should be preferred
over <literal>"*"</literal>. This can reduce the matching complexity from
O(n^2) to O(n). For example <literal>"Gtk*Box"</literal> can be turned into
<literal>"Gtk?Box"</literal> and will still match #GtkHBox and #GtkVBox.
</para></listitem>
<listitem><para>
The use of <literal>"*"</literal> wildcards should be restricted as much
as possible, because matching <literal>"A*B*C*RestString"</literal> can
result in matching complexities worse than O(n^2) in the length of strings.
</para></listitem>
</orderedlist>
</para>
</refsect2>
<refsect2><title>Toplevel declarations</title>
<para>
An RC file is a text file which is composed of a sequence

40
docs/reference/gtk/tmpl/gtkselection.sgml
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@ -332,6 +332,46 @@ selection handling code.
@Returns:
<!-- ##### FUNCTION gtk_selection_data_targets_include_uri ##### -->
<para>
</para>
@selection_data:
@Returns:
<!-- ##### FUNCTION gtk_targets_include_image ##### -->
<para>
</para>
@targets:
@n_targets:
@writable:
@Returns:
<!-- ##### FUNCTION gtk_targets_include_text ##### -->
<para>
</para>
@targets:
@n_targets:
@Returns:
<!-- ##### FUNCTION gtk_targets_include_uri ##### -->
<para>
</para>
@targets:
@n_targets:
@Returns:
<!-- ##### FUNCTION gtk_selection_remove_all ##### -->
<para>
</para>

2
docs/reference/gtk/tmpl/gtkstock.sgml
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@ -773,6 +773,7 @@ The "Save As" item.
</para>
<!-- ##### MACRO GTK_STOCK_SELECT_ALL ##### -->
<para>
The "Select All" item.
@ -781,6 +782,7 @@ The "Select All" item.
@Since: 2.10
<!-- ##### MACRO GTK_STOCK_SELECT_COLOR ##### -->
<para>
The "Color" item.

10
docs/reference/gtk/tmpl/gtktoolbar.sgml
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@ -102,6 +102,16 @@ accessed through the function described below.
@toolbar:
@style:
<!-- ##### ARG GtkToolbar:icon-size ##### -->
<para>
</para>
<!-- ##### ARG GtkToolbar:icon-size-set ##### -->
<para>
</para>
<!-- ##### ARG GtkToolbar:orientation ##### -->
<para>

23
docs/reference/gtk/tmpl/gtkwindow.sgml
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@ -99,6 +99,11 @@ Toplevel which can contain other widgets
</para>
<!-- ##### ARG GtkWindow:deletable ##### -->
<para>
</para>
<!-- ##### ARG GtkWindow:destroy-with-parent ##### -->
<para>
@ -688,6 +693,15 @@ Deprecated alias for gtk_window_set_position().
@setting:
<!-- ##### FUNCTION gtk_window_set_deletable ##### -->
<para>
</para>
@window:
@setting:
<!-- ##### FUNCTION gtk_window_set_frame_dimensions ##### -->
<para>
@ -790,6 +804,15 @@ Deprecated alias for gtk_window_set_position().
@Returns:
<!-- ##### FUNCTION gtk_window_get_deletable ##### -->
<para>
</para>
@window:
@Returns:
<!-- ##### FUNCTION gtk_window_get_default_icon_list ##### -->
<para>