forked from AuroraMiddleware/gtk
192 lines
6.0 KiB
Plaintext
192 lines
6.0 KiB
Plaintext
<!-- ##### SECTION Title ##### -->
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GtkTooltips
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<!-- ##### SECTION Short_Description ##### -->
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Add tips to your widgets
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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#GtkTooltips has been deprecated in GTK+ 2.12, in favor of the new
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#GtkTooltip API.
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</para>
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<para>
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Tooltips are the messages that appear next to a widget when the mouse pointer is held over it for a short amount of time. They are especially helpful for adding more verbose descriptions of things such as buttons in a toolbar.
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</para>
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<para>
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An individual tooltip belongs to a group of tooltips. A group is created with a call to gtk_tooltips_new(). Every tooltip in the group can then be turned off with a call to gtk_tooltips_disable() and enabled with gtk_tooltips_enable().
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</para>
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<para>
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The length of time the user must keep the mouse over a widget before the tip is shown, can be altered with gtk_tooltips_set_delay(). This is set on a 'per group of tooltips' basis.
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</para>
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<para>
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To assign a tip to a particular #GtkWidget, gtk_tooltips_set_tip() is used.
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</para>
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<note>
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<para>
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Tooltips can only be set on widgets which have their own X window and
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receive enter and leave events.
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To check if a widget has its own window use GTK_WIDGET_NO_WINDOW().
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To add a tooltip to a widget that doesn't have its own window, place the
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widget inside a #GtkEventBox and add a tooltip to that instead.
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</para>
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</note>
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<para>
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The default appearance of all tooltips in a program is determined by the current GTK+ theme that the user has selected.
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</para>
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<para>
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Information about the tooltip (if any) associated with an arbitrary widget can be retrieved using gtk_tooltips_data_get().
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</para>
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<para>
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<example>
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<title>Adding tooltips to buttons.</title>
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<programlisting>
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GtkWidget *load_button, *save_button, *hbox;
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GtkTooltips *button_bar_tips;
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button_bar_tips = gtk_tooltips_new (<!-- -->);
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/* Create the buttons and pack them into a GtkHBox */
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hbox = gtk_hbox_new (TRUE, 2);
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load_button = gtk_button_new_with_label ("Load a file");
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gtk_box_pack_start (GTK_BOX (hbox), load_button, TRUE, TRUE, 2);
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gtk_widget_show (load_button);
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save_button = gtk_button_new_with_label ("Save a file");
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gtk_box_pack_start (GTK_BOX (hbox), save_button, TRUE, TRUE, 2);
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gtk_widget_show (save_button);
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gtk_widget_show (hbox);
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/* Add the tips */
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gtk_tooltips_set_tip (GTK_TOOLTIPS (button_bar_tips), load_button,
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"Load a new document into this window",
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"Requests the filename of a document.
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This will then be loaded into the current
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window, replacing the contents of whatever
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is already loaded.");
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gtk_tooltips_set_tip (GTK_TOOLTIPS (button_bar_tips), save_button,
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"Saves the current document to a file",
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"If you have saved the document previously,
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then the new version will be saved over the
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old one. Otherwise, you will be prompted for
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a filename.");
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</programlisting></example>
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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<variablelist>
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<varlistentry>
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<term>#GtkToolbar</term>
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<listitem><para>Create groups of widgets with their own tooltips.</para></listitem>
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</varlistentry>
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<varlistentry>
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<term>#GtkTipsQuery</term>
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<listitem><para>Query tooltips to create context-sensitive help.</para></listitem>
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</varlistentry>
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</variablelist>
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</para>
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<!-- ##### SECTION Stability_Level ##### -->
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<!-- ##### STRUCT GtkTooltips ##### -->
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<para>Holds information about a group of tooltips. Fields should be changed using the functions provided, rather than directly accessing the struct's members.
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</para>
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<!-- ##### STRUCT GtkTooltipsData ##### -->
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<para>
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<structfield>tooltips</structfield> is the #GtkTooltips group that this tooltip belongs to. <structfield>widget</structfield> is the #GtkWidget that this tooltip data is associated with. <structfield>tip_text</structfield> is a string containing the tooltip message itself.</para>
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<para>
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<structfield>tip_private</structfield> is a string that is not shown as the default tooltip. Instead, this message may be more informative and go towards forming a context-sensitive help system for your application. (FIXME: how to actually "switch on" private tips?)
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</para>
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@tooltips:
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@widget:
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@tip_text:
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@tip_private:
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@Deprecated: 2.12:
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<!-- ##### FUNCTION gtk_tooltips_new ##### -->
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<para>
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Creates an empty group of tooltips. This function initialises a #GtkTooltips structure. Without at least one such structure, you can not add tips to your application.
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</para>
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@Returns: a new #GtkTooltips group for you to use.
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@Deprecated: 2.12:
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<!-- ##### FUNCTION gtk_tooltips_enable ##### -->
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<para>
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Allows the user to see your tooltips as they navigate your application.
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</para>
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@tooltips: a #GtkTooltips.
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@Deprecated: 2.12:
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<!-- ##### FUNCTION gtk_tooltips_disable ##### -->
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<para>
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Causes all tooltips in @tooltips to become inactive. Any widgets that have tips associated with that group will no longer display their tips until they are enabled again with gtk_tooltips_enable().
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</para>
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@tooltips: a #GtkTooltips.
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@Deprecated: 2.12:
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<!-- ##### FUNCTION gtk_tooltips_set_delay ##### -->
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<para>
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Sets the time between the user moving the mouse over a widget and the widget's tooltip appearing.
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</para>
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@tooltips: a #GtkTooltips.
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@delay: an integer value representing milliseconds.
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@Deprecated: 2.12:
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<!-- ##### FUNCTION gtk_tooltips_set_tip ##### -->
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@tooltips:
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@widget:
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@tip_text:
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@tip_private:
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<!-- ##### FUNCTION gtk_tooltips_data_get ##### -->
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<para>
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Retrieves any #GtkTooltipsData previously associated with the given widget.
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</para>
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@widget: a #GtkWidget.
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@Returns: a #GtkTooltipsData struct, or %NULL if the widget has no tooltip.
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@Deprecated: 2.12:
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<!-- ##### FUNCTION gtk_tooltips_force_window ##### -->
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<para>
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Ensures that the window used for displaying the given @tooltips is created.
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</para>
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<para>
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Applications should never have to call this function, since GTK+ takes
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care of this.
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</para>
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@tooltips: a #GtkToolTips
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@Deprecated: 2.12:
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<!-- ##### FUNCTION gtk_tooltips_get_info_from_tip_window ##### -->
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<para>
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</para>
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@tip_window:
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@tooltips:
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@current_widget:
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@Returns:
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@Deprecated: 2.12:
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