diff options
Diffstat (limited to 'specs/CH01.xml')
| -rw-r--r-- | specs/CH01.xml | 890 |
1 files changed, 445 insertions, 445 deletions
diff --git a/specs/CH01.xml b/specs/CH01.xml index b20226e..1d880cf 100644 --- a/specs/CH01.xml +++ b/specs/CH01.xml @@ -218,42 +218,42 @@ All widget classes contain the fields defined in the <function>CoreClassPart</function> structure. </para> -<literallayout> -<code>typedef struct {</code> -<code> WidgetClass superclass; </code>See <xref linkend="Widget_Classing" xrefstyle='select: label' /> -<code> String class_name; </code>See <xref linkend="Resource_Management" xrefstyle='select: label' /> -<code> Cardinal widget_size; </code>See <xref linkend="Widget_Classing" xrefstyle='select: label' /> -<code> XtProc class_initialize; </code>See <xref linkend="Widget_Classing" xrefstyle='select: label' /> -<code> XtWidgetClassProc class_part_initialize; </code>See <xref linkend="Widget_Classing" xrefstyle='select: label' /> -<code> XtEnum class_inited; </code>See <xref linkend="Widget_Classing" xrefstyle='select: label' /> -<code> XtInitProc initialize; </code>See <xref linkend='Creating_Widgets' xrefstyle='select: label' /> -<code> XtArgsProc initialize_hook; </code>See <xref linkend='Creating_Widgets' xrefstyle='select: label' /> -<code> XtRealizeProc realize; </code>See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> -<code> XtActionList actions; </code>See <xref linkend='Translation_Management' xrefstyle='select: label' /> -<code> Cardinal num_actions; </code>See <xref linkend='Translation_Management' xrefstyle='select: label' /> -<code> XtResourceList resources; </code>See <xref linkend="Resource_Management" xrefstyle='select: label' /> -<code> Cardinal num_resources; </code>See <xref linkend="Resource_Management" xrefstyle='select: label' /> -<code> XrmClass xrm_class; </code>Private to resource manager -<code> Boolean compress_motion; </code>See <xref linkend='X_Event_Filters' xrefstyle='select: label' /> -<code> XtEnum compress_exposure; </code>See <xref linkend='X_Event_Filters' xrefstyle='select: label' /> -<code> Boolean compress_enterleave; </code>See <xref linkend='X_Event_Filters' xrefstyle='select: label' /> -<code> Boolean visible_interest; </code>See <xref linkend='Widget_Exposure_and_Visibility' xrefstyle='select: label' /> -<code> XtWidgetProc destroy; </code>See <xref linkend='Destroying_Widgets' xrefstyle='select: label' /> -<code> XtWidgetProc resize; </code>See <xref linkend='Geometry_Management' xrefstyle='select: label' /> -<code> XtExposeProc expose; </code>See <xref linkend='Widget_Exposure_and_Visibility' xrefstyle='select: label' /> -<code> XtSetValuesFunc set_values; </code>See <xref linkend='Reading_and_Writing_Widget_State' xrefstyle='select: label' /> -<code> XtArgsFunc set_values_hook; </code>See <xref linkend='Reading_and_Writing_Widget_State' xrefstyle='select: label' /> -<code> XtAlmostProc set_values_almost; </code>See <xref linkend='Reading_and_Writing_Widget_State' xrefstyle='select: label' /> -<code> XtArgsProc get_values_hook; </code>See <xref linkend='Reading_and_Writing_Widget_State' xrefstyle='select: label' /> -<code> XtAcceptFocusProc accept_focus; </code>See <xref linkend='Focusing_Events_on_a_Child' xrefstyle='select: label' /> -<code> XtVersionType version; </code>See <xref linkend="Widget_Classing" xrefstyle='select: label' /> -<code> XtPointer callback_private; </code>Private to callbacks -<code> String tm_table; </code>See <xref linkend='Translation_Management' xrefstyle='select: label' /> -<code> XtGeometryHandler query_geometry; </code>See <xref linkend ='Geometry_Management' xrefstyle='select: label' /> -<code> XtStringProc display_accelerator; </code>See <xref linkend='Translation_Management' xrefstyle='select: label' /> -<code> XtPointer extension; </code>See <xref linkend="Widget_Classing" xrefstyle='select: label' /> -<code>} CoreClassPart;</code> -</literallayout> +<programlisting> +typedef struct { + WidgetClass superclass; See <xref linkend="Widget_Classing" xrefstyle='select: label' /> + String class_name; See <xref linkend="Resource_Management" xrefstyle='select: label' /> + Cardinal widget_size; See <xref linkend="Widget_Classing" xrefstyle='select: label' /> + XtProc class_initialize; See <xref linkend="Widget_Classing" xrefstyle='select: label' /> + XtWidgetClassProc class_part_initialize; See <xref linkend="Widget_Classing" xrefstyle='select: label' /> + XtEnum class_inited; See <xref linkend="Widget_Classing" xrefstyle='select: label' /> + XtInitProc initialize; See <xref linkend='Creating_Widgets' xrefstyle='select: label' /> + XtArgsProc initialize_hook; See <xref linkend='Creating_Widgets' xrefstyle='select: label' /> + XtRealizeProc realize; See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> + XtActionList actions; See <xref linkend='Translation_Management' xrefstyle='select: label' /> + Cardinal num_actions; See <xref linkend='Translation_Management' xrefstyle='select: label' /> + XtResourceList resources; See <xref linkend="Resource_Management" xrefstyle='select: label' /> + Cardinal num_resources; See <xref linkend="Resource_Management" xrefstyle='select: label' /> + XrmClass xrm_class; Private to resource manager + Boolean compress_motion; See <xref linkend='X_Event_Filters' xrefstyle='select: label' /> + XtEnum compress_exposure; See <xref linkend='X_Event_Filters' xrefstyle='select: label' /> + Boolean compress_enterleave; See <xref linkend='X_Event_Filters' xrefstyle='select: label' /> + Boolean visible_interest; See <xref linkend='Widget_Exposure_and_Visibility' xrefstyle='select: label' /> + XtWidgetProc destroy; See <xref linkend='Destroying_Widgets' xrefstyle='select: label' /> + XtWidgetProc resize; See <xref linkend='Geometry_Management' xrefstyle='select: label' /> + XtExposeProc expose; See <xref linkend='Widget_Exposure_and_Visibility' xrefstyle='select: label' /> + XtSetValuesFunc set_values; See <xref linkend='Reading_and_Writing_Widget_State' xrefstyle='select: label' /> + XtArgsFunc set_values_hook; See <xref linkend='Reading_and_Writing_Widget_State' xrefstyle='select: label' /> + XtAlmostProc set_values_almost; See <xref linkend='Reading_and_Writing_Widget_State' xrefstyle='select: label' /> + XtArgsProc get_values_hook; See <xref linkend='Reading_and_Writing_Widget_State' xrefstyle='select: label' /> + XtAcceptFocusProc accept_focus; See <xref linkend='Focusing_Events_on_a_Child' xrefstyle='select: label' /> + XtVersionType version; See <xref linkend="Widget_Classing" xrefstyle='select: label' /> + XtPointer callback_private; Private to callbacks + String tm_table; See <xref linkend='Translation_Management' xrefstyle='select: label' /> + XtGeometryHandler query_geometry; See <xref linkend ='Geometry_Management' xrefstyle='select: label' /> + XtStringProc display_accelerator; See <xref linkend='Translation_Management' xrefstyle='select: label' /> + XtPointer extension; See <xref linkend="Widget_Classing" xrefstyle='select: label' /> +} CoreClassPart; +</programlisting> <para> All widget classes have the Core class fields as their first component. The prototypical @@ -262,11 +262,11 @@ and <function>CoreWidgetClass</function> are defined with only this set of fields. </para> -<literallayout> -<code>typedef struct {</code> -<code> CoreClassPart core_class;</code> -<code>} WidgetClassRec, *WidgetClass, CoreClassRec, *CoreWidgetClass;</code> -</literallayout> +<programlisting> +typedef struct { + CoreClassPart core_class; +} WidgetClassRec, *WidgetClass, CoreClassRec, *CoreWidgetClass; +</programlisting> <para> Various routines can cast widget class pointers, as needed, to specific widget class types. @@ -281,17 +281,17 @@ creating instances of Core are In <function>IntrinsicP.h</function>: </para> -<literallayout> -<code>extern WidgetClassRec widgetClassRec;</code> -<code>#define coreClassRec widgetClassRec</code> -</literallayout> +<programlisting> +extern WidgetClassRec widgetClassRec; +#define coreClassRec widgetClassRec +</programlisting> <para> In <function>Intrinsic.h</function>: </para> -<literallayout> -<code>extern WidgetClass widgetClass, coreWidgetClass;</code> -</literallayout> +<programlisting> +extern WidgetClass widgetClass, coreWidgetClass; +</programlisting> <para> The opaque types <function>Widget</function> @@ -305,9 +305,9 @@ does not allow applications to access private data, the Intrinsics use incomplete structure definitions in <function>Intrinsic.h</function>: </para> -<literallayout> -<code>typedef struct _WidgetClassRec *WidgetClass, *CoreWidgetClass;</code> -</literallayout> +<programlisting> +typedef struct _WidgetClassRec *WidgetClass, *CoreWidgetClass; +</programlisting> </sect3> <sect3 id="CorePart_Structure"> <title>CorePart Structure</title> @@ -316,49 +316,49 @@ All widget instances contain the fields defined in the <function>CorePart</function> structure. </para> -<literallayout> -<code>typedef struct _CorePart {</code> -<code> Widget self; </code>Described below -<code> WidgetClass widget_class; </code>See <xref linkend='Widget_Classing' xrefstyle='select: label' /> -<code> Widget parent; </code>See <xref linkend='Creating_Widgets' xrefstyle='select: label' /> -<code> Boolean being_destroyed; </code>See <xref linkend='Destroying_Widgets' xrefstyle='select: label' /> -<code> XtCallbackList destroy_callbacks; </code><xref linkend='Destroying_Widgets' xrefstyle='select: label' /> -<code> XtPointer constraints; </code>See <xref linkend='Constrained_Composite_Widgets' xrefstyle='select: label' /> -<code> Position x; </code>See <xref linkend='Geometry_Management' xrefstyle='select: label' /> -<code> Position y; </code>See <xref linkend='Geometry_Management' xrefstyle='select: label' /> -<code> Dimension width; </code>See <xref linkend='Geometry_Management' xrefstyle='select: label' /> -<code> Dimension height; </code>See <xref linkend='Geometry_Management' xrefstyle='select: label' /> -<code> Dimension border_width; </code>See <xref linkend='Geometry_Management' xrefstyle='select: label' /> -<code> Boolean managed; </code>See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> -<code> Boolean sensitive; </code>See <xref linkend='Setting_and_Checking_the_Sensitivity_State_of_a_Widget' xrefstyle='select: label' /> -<code> Boolean ancestor_sensitive; </code>See <xref linkend='Setting_and_Checking_the_Sensitivity_State_of_a_Widget' xrefstyle='select: label' /> -<code> XtTranslations accelerators; </code>See <xref linkend='Translation_Management' xrefstyle='select: label' /> -<code> Pixel border_pixel; </code>See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> -<code> Pixmap border_pixmap; </code>See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> -<code> WidgetList popup_list; </code>See <xref linkend='Pop_Up_Widgets' xrefstyle='select: label' /> -<code> Cardinal num_popups; </code>See <xref linkend='Pop_Up_Widgets' xrefstyle='select: label' /> -<code> String name; </code>See <xref linkend='Resource_Management' xrefstyle='select: label' /> -<code> Screen *screen; </code>See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> -<code> Colormap colormap; </code>See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> -<code> Window window; </code>See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> -<code> Cardinal depth; </code>See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> -<code> Pixel background_pixel; </code>See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> -<code> Pixmap background_pixmap; </code>See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> -<code> Boolean visible; </code>See <xref linkend='Widget_Exposure_and_Visibility' xrefstyle='select: label' /> -<code> Boolean mapped_when_managed; </code>See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> -<code>} CorePart;</code> -</literallayout> +<programlisting> +typedef struct _CorePart { + Widget self; Described below + WidgetClass widget_class; See <xref linkend='Widget_Classing' xrefstyle='select: label' /> + Widget parent; See <xref linkend='Creating_Widgets' xrefstyle='select: label' /> + Boolean being_destroyed; See <xref linkend='Destroying_Widgets' xrefstyle='select: label' /> + XtCallbackList destroy_callbacks; <xref linkend='Destroying_Widgets' xrefstyle='select: label' /> + XtPointer constraints; See <xref linkend='Constrained_Composite_Widgets' xrefstyle='select: label' /> + Position x; See <xref linkend='Geometry_Management' xrefstyle='select: label' /> + Position y; See <xref linkend='Geometry_Management' xrefstyle='select: label' /> + Dimension width; See <xref linkend='Geometry_Management' xrefstyle='select: label' /> + Dimension height; See <xref linkend='Geometry_Management' xrefstyle='select: label' /> + Dimension border_width; See <xref linkend='Geometry_Management' xrefstyle='select: label' /> + Boolean managed; See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> + Boolean sensitive; See <xref linkend='Setting_and_Checking_the_Sensitivity_State_of_a_Widget' xrefstyle='select: label' /> + Boolean ancestor_sensitive; See <xref linkend='Setting_and_Checking_the_Sensitivity_State_of_a_Widget' xrefstyle='select: label' /> + XtTranslations accelerators; See <xref linkend='Translation_Management' xrefstyle='select: label' /> + Pixel border_pixel; See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> + Pixmap border_pixmap; See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> + WidgetList popup_list; See <xref linkend='Pop_Up_Widgets' xrefstyle='select: label' /> + Cardinal num_popups; See <xref linkend='Pop_Up_Widgets' xrefstyle='select: label' /> + String name; See <xref linkend='Resource_Management' xrefstyle='select: label' /> + Screen *screen; See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> + Colormap colormap; See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> + Window window; See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> + Cardinal depth; See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> + Pixel background_pixel; See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> + Pixmap background_pixmap; See <xref linkend='Realizing_Widgets' xrefstyle='select: label' /> + Boolean visible; See <xref linkend='Widget_Exposure_and_Visibility' xrefstyle='select: label' /> + Boolean mapped_when_managed; See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> +} CorePart; +</programlisting> <para> All widget instances have the Core fields as their first component. The prototypical type <function>Widget</function> is defined with only this set of fields. </para> -<literallayout> -<code>typedef struct {</code> -<code> CorePart core;</code> -<code>} WidgetRec, *Widget, CoreRec, *CoreWidget;</code> -</literallayout> +<programlisting> +typedef struct { + CorePart core; +} WidgetRec, *Widget, CoreRec, *CoreWidget; +</programlisting> <para> Various routines can cast widget pointers, as needed, to specific widget types. @@ -370,9 +370,9 @@ does not allow applications to access private data, the Intrinsics use incomplete structure definitions in <function>Intrinsic.h</function>. </para> -<literallayout> -<code>typedef struct _WidgetRec *Widget, *CoreWidget;</code> -</literallayout> +<programlisting> +typedef struct _WidgetRec *Widget, *CoreWidget; +</programlisting> </sect3> <sect3 id="Core_Resources"> <title>Core Resources</title> @@ -631,15 +631,15 @@ Core class fields, widgets of the Composite class have the following class fields. </para> -<literallayout> -<code>typedef struct {</code> -<code> XtGeometryHandler geometry_manager; </code>See <xref linkend='Geometry_Management' xrefstyle='select: label' /> -<code> XtWidgetProc change_managed; </code>See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> -<code> XtWidgetProc insert_child; </code>See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> -<code> XtWidgetProc delete_child; </code>See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> -<code> XtPointer extension; </code>See <xref linkend='Widget_Classing' xrefstyle='select: label' /> -<code>} CompositeClassPart;</code> -</literallayout> +<programlisting> +typedef struct { + XtGeometryHandler geometry_manager; See <xref linkend='Geometry_Management' xrefstyle='select: label' /> + XtWidgetProc change_managed; See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> + XtWidgetProc insert_child; See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> + XtWidgetProc delete_child; See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> + XtPointer extension; See <xref linkend='Widget_Classing' xrefstyle='select: label' /> +} CompositeClassPart; +</programlisting> <para> The extension record defined for <function>CompositeClassPart</function> @@ -649,27 +649,27 @@ equal to is <function>CompositeClassExtensionRec</function>. </para> -<literallayout> -<code>typedef struct {</code> -<code> XtPointer next_extension; </code>See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> -<code> XrmQuark record_type; </code>See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> -<code> long version; </code>See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> -<code> Cardinal record_size; </code>See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> -<code> Boolean accepts_objects; </code>See <xref linkend='Creating_a_Widget_Instance' xrefstyle='select: label' /> -<code> Boolean allows_change_managed_set; </code>See <xref linkend='Bundling_Changes_to_the_Managed_Set' xrefstyle='select: label' /> -<code>} CompositeClassExtensionRec, *CompositeClassExtension;</code> -</literallayout> +<programlisting> +typedef struct { + XtPointer next_extension; See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> + XrmQuark record_type; See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> + long version; See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> + Cardinal record_size; See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> + Boolean accepts_objects; See <xref linkend='Creating_a_Widget_Instance' xrefstyle='select: label' /> + Boolean allows_change_managed_set; See <xref linkend='Bundling_Changes_to_the_Managed_Set' xrefstyle='select: label' /> +} CompositeClassExtensionRec, *CompositeClassExtension; +</programlisting> <para> Composite classes have the Composite class fields immediately following the Core class fields. </para> -<literallayout> -<code>typedef struct {</code> -<code> CoreClassPart core_class;</code> -<code> CompositeClassPart composite_class;</code> -<code>} CompositeClassRec, *CompositeWidgetClass;</code> -</literallayout> +<programlisting> +typedef struct { + CoreClassPart core_class; + CompositeClassPart composite_class; +} CompositeClassRec, *CompositeWidgetClass; +</programlisting> <para> The single occurrences of the class record and pointer for creating instances of Composite are @@ -679,16 +679,16 @@ instances of Composite are In <function>IntrinsicP.h</function>: </para> -<literallayout> -<code>extern CompositeClassRec compositeClassRec;</code> -</literallayout> +<programlisting> +extern CompositeClassRec compositeClassRec; +</programlisting> <para> In <function>Intrinsic.h</function>: </para> -<literallayout> -<code>extern WidgetClass compositeWidgetClass;</code> -</literallayout> +<programlisting> +extern WidgetClass compositeWidgetClass; +</programlisting> <para> The opaque types <function>CompositeWidget</function> @@ -708,9 +708,9 @@ uses an incomplete structure definition to ensure that the compiler catches attempts to access private data. </para> -<literallayout> -<code>typedef struct _CompositeClassRec *CompositeWidgetClass;</code> -</literallayout> +<programlisting> +typedef struct _CompositeClassRec *CompositeWidgetClass; +</programlisting> </sect3> <sect3 id="CompositePart_Structure"> <title>CompositePart Structure</title> @@ -723,33 +723,33 @@ instance fields defined in the <function>CompositePart</function> structure. </para> -<literallayout> -<code>typedef struct {</code> -<code> WidgetList children; </code>See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> -<code> Cardinal num_children; </code>See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> -<code> Cardinal num_slots; </code>See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> -<code> XtOrderProc insert_position; </code>See <xref linkend='Insertion_Order_of_Children_The_insert_position_Procedure' xrefstyle='select: label' /> -<code>} CompositePart;</code> -</literallayout> +<programlisting> +typedef struct { + WidgetList children; See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> + Cardinal num_children; See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> + Cardinal num_slots; See <xref linkend='Composite_Widgets_and_Their_Children' xrefstyle='select: label' /> + XtOrderProc insert_position; See <xref linkend='Insertion_Order_of_Children_The_insert_position_Procedure' xrefstyle='select: label' /> +} CompositePart; +</programlisting> <para> Composite widgets have the Composite instance fields immediately following the Core instance fields. </para> -<literallayout> -<code>typedef struct {</code> -<code> CorePart core;</code> -<code> CompositePart composite;</code> -<code>} CompositeRec, *CompositeWidget;</code> -</literallayout> +<programlisting> +typedef struct { + CorePart core; + CompositePart composite; +} CompositeRec, *CompositeWidget; +</programlisting> <para> <function>Intrinsic.h</function> uses an incomplete structure definition to ensure that the compiler catches attempts to access private data. </para> -<literallayout> -<code>typedef struct _CompositeRec *CompositeWidget;</code> -</literallayout> +<programlisting> +typedef struct _CompositeRec *CompositeWidget; +</programlisting> </sect3> <sect3 id="Composite_Resources"> <title>Composite Resources</title> @@ -877,17 +877,17 @@ class fields, widgets of the Constraint class have the following class fields. </para> -<literallayout> -<code>typedef struct {</code> -<code> XtResourceList resources; </code>See <xref linkend='Resource_Management' xrefstyle='select: label' /> -<code> Cardinal num_resources; </code>See <xref linkend='Resource_Management' xrefstyle='select: label' /> -<code> Cardinal constraint_size; </code>See <xref linkend='Constrained_Composite_Widgets' xrefstyle='select: label' /> -<code> XtInitProc initialize; </code>See <xref linkend='Constrained_Composite_Widgets' xrefstyle='select: label' /> -<code> XtWidgetProc destroy; </code>See <xref linkend='Constrained_Composite_Widgets' xrefstyle='select: label' /> -<code> XtSetValuesFunc set_values; </code>See <xref linkend='Setting_Widget_State' xrefstyle='select: label' /> -<code> XtPointer extension; </code>See <xref linkend='Widget_Classing' xrefstyle='select: label' /> -<code>} ConstraintClassPart;</code> -</literallayout> +<programlisting> +typedef struct { + XtResourceList resources; See <xref linkend='Resource_Management' xrefstyle='select: label' /> + Cardinal num_resources; See <xref linkend='Resource_Management' xrefstyle='select: label' /> + Cardinal constraint_size; See <xref linkend='Constrained_Composite_Widgets' xrefstyle='select: label' /> + XtInitProc initialize; See <xref linkend='Constrained_Composite_Widgets' xrefstyle='select: label' /> + XtWidgetProc destroy; See <xref linkend='Constrained_Composite_Widgets' xrefstyle='select: label' /> + XtSetValuesFunc set_values; See <xref linkend='Setting_Widget_State' xrefstyle='select: label' /> + XtPointer extension; See <xref linkend='Widget_Classing' xrefstyle='select: label' /> +} ConstraintClassPart; +</programlisting> <para> The extension record defined for <function>ConstraintClassPart</function> @@ -896,27 +896,27 @@ with <emphasis remap='I'>record_type</emphasis> equal to is <function>ConstraintClassExtensionRec</function>. </para> -<literallayout> -<code>typedef struct {</code> -<code> XtPointer next_extension; </code>See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> -<code> XrmQuark record_type; </code>See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> -<code> long version; </code>See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> -<code> Cardinal record_size; </code>See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> -<code> XtArgsProc get_values_hook; </code>See <xref linkend='Obtaining_Widget_State' xrefstyle='select: label' /> -<code>} ConstraintClassExtensionRec, *ConstraintClassExtension;</code> -</literallayout> +<programlisting> +typedef struct { + XtPointer next_extension; See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> + XrmQuark record_type; See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> + long version; See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> + Cardinal record_size; See <xref linkend='Class_Extension_Records' xrefstyle='select: label' /> + XtArgsProc get_values_hook; See <xref linkend='Obtaining_Widget_State' xrefstyle='select: label' /> +} ConstraintClassExtensionRec, *ConstraintClassExtension; +</programlisting> <para> Constraint classes have the Constraint class fields immediately following the Composite class fields. </para> -<literallayout> -<code>typedef struct _ConstraintClassRec {</code> -<code> CoreClassPart core_class;</code> -<code> CompositeClassPart composite_class;</code> -<code> ConstraintClassPart constraint_class;</code> -<code>} ConstraintClassRec, *ConstraintWidgetClass;</code> -</literallayout> +<programlisting> +typedef struct _ConstraintClassRec { + CoreClassPart core_class; + CompositeClassPart composite_class; + ConstraintClassPart constraint_class; +} ConstraintClassRec, *ConstraintWidgetClass; +</programlisting> <para> The single occurrences of the class record and pointer for creating instances of Constraint are @@ -926,16 +926,16 @@ instances of Constraint are In <function>IntrinsicP.h</function>: </para> -<literallayout> -<code>extern ConstraintClassRec constraintClassRec;</code> -</literallayout> +<programlisting> +extern ConstraintClassRec constraintClassRec; +</programlisting> <para> In <function>Intrinsic.h</function>: </para> -<literallayout> -<code>extern WidgetClass constraintWidgetClass;</code> -</literallayout> +<programlisting> +extern WidgetClass constraintWidgetClass; +</programlisting> <para> The opaque types <function>ConstraintWidget</function> @@ -955,9 +955,9 @@ version identifier is uses an incomplete structure definition to ensure that the compiler catches attempts to access private data. </para> -<literallayout> -<code>typedef struct _ConstraintClassRec *ConstraintWidgetClass;</code> -</literallayout> +<programlisting> +typedef struct _ConstraintClassRec *ConstraintWidgetClass; +</programlisting> </sect3> <sect3 id="ConstraintPart_Structure"> <title>ConstraintPart Structure</title> @@ -972,31 +972,31 @@ instance fields defined in the <function>ConstraintPart</function> structure </para> -<literallayout> -<code>typedef struct {</code> -<code> int empty;</code> -<code>} ConstraintPart;</code> -</literallayout> +<programlisting> +typedef struct { + int empty; +} ConstraintPart; +</programlisting> <para> Constraint widgets have the Constraint instance fields immediately following the Composite instance fields. </para> -<literallayout> -<code>typedef struct {</code> -<code> CorePart core;</code> -<code> CompositePart composite;</code> -<code> ConstraintPart constraint;</code> -<code>} ConstraintRec, *ConstraintWidget;</code> -</literallayout> +<programlisting> +typedef struct { + CorePart core; + CompositePart composite; + ConstraintPart constraint; +} ConstraintRec, *ConstraintWidget; +</programlisting> <para> <function>Intrinsic.h</function> uses an incomplete structure definition to ensure that the compiler catches attempts to access private data. </para> -<literallayout> -<code>typedef struct _ConstraintRec *ConstraintWidget;</code> -</literallayout> +<programlisting> +typedef struct _ConstraintRec *ConstraintWidget; +</programlisting> </sect3> <sect3 id="Constraint_Resources"> <title>Constraint Resources</title> @@ -1418,30 +1418,30 @@ Entry points for new class methods. For example, the following is the public .h file for a possible implementation of a Label widget: </para> -<literallayout> -<code>#ifndef LABEL_H</code> -<code>#define LABEL_H</code> +<programlisting> +#ifndef LABEL_H +#define LABEL_H -<code>/* New resources */</code> -<code>#define XtNjustify "justify"</code> -<code>#define XtNforeground "foreground"</code> -<code>#define XtNlabel "label"</code> -<code>#define XtNfont "font"</code> -<code>#define XtNinternalWidth "internalWidth"</code> -<code>#define XtNinternalHeight "internalHeight"</code> +/* New resources */ +#define XtNjustify "justify" +#define XtNforeground "foreground" +#define XtNlabel "label" +#define XtNfont "font" +#define XtNinternalWidth "internalWidth" +#define XtNinternalHeight "internalHeight" -<code>/* Class record pointer */</code> -<code>extern WidgetClass labelWidgetClass;</code> +/* Class record pointer */ +extern WidgetClass labelWidgetClass; -<code>/* C Widget type definition */</code> -<code>typedef struct _LabelRec *LabelWidget;</code> +/* C Widget type definition */ +typedef struct _LabelRec *LabelWidget; -<code>/* New class method entry points */</code> -<code>extern void LabelSetText(Widget w, String text);</code> -<code>extern String LabelGetText(Widget w);</code> +/* New class method entry points */ +extern void LabelSetText(Widget w, String text); +extern String LabelGetText(Widget w); -<code>#endif LABEL_H</code> -</literallayout> +#endif LABEL_H +</programlisting> <para> The conditional inclusion of the text allows the application to include header files for different widgets without being concerned @@ -1557,67 +1557,67 @@ An inherit constant for each new procedure in the widget class part structure. <para> For example, the following is the private .h file for a possible Label widget: </para> -<literallayout> -<code>#ifndef LABELP_H</code> -<code>#define LABELP_H</code> - -<code>#include <X11/Label.h></code> - -<code>/* New representation types used by the Label widget */</code> -<code>#define XtRJustify "Justify"</code> - -<code>/* New fields for the Label widget record */</code> -<code>typedef struct {</code> -<code>/* Settable resources */</code> -<code> Pixel foreground;</code> -<code> XFontStruct *font;</code> -<code> String label; /* text to display */</code> -<code> XtJustify justify;</code> -<code> Dimension internal_width; /* # pixels horizontal border */</code> -<code> Dimension internal_height; /* # pixels vertical border */</code> -<code>/* Data derived from resources */</code> -<code> GC normal_GC;</code> -<code> GC gray_GC;</code> -<code> Pixmap gray_pixmap;</code> -<code> Position label_x;</code> -<code> Position label_y;</code> -<code> Dimension label_width;</code> -<code> Dimension label_height;</code> -<code> Cardinal label_len;</code> -<code> Boolean display_sensitive;</code> -<code>} LabelPart;</code> - -<code>/* Full instance record declaration */</code> -<code>typedef struct _LabelRec {</code> -<code> CorePart core;</code> -<code> LabelPart label;</code> -<code>} LabelRec;</code> - -<code>/* Types for Label class methods */</code> -<code>typedef void (*LabelSetTextProc)(Widget w, String text);</code> -<code>typedef String (*LabelGetTextProc)(Widget w);</code> - -<code>/* New fields for the Label widget class record */</code> -<code>typedef struct {</code> -<code> LabelSetTextProc set_text;</code> -<code> LabelGetTextProc get_text;</code> -<code> XtPointer extension;</code> -<code>} LabelClassPart;</code> - -<code>/* Full class record declaration */</code> -<code>typedef struct _LabelClassRec {</code> -<code> CoreClassPart core_class;</code> -<code> LabelClassPart label_class;</code> -<code>} LabelClassRec;</code> - -<code>/* Class record variable */</code> -<code>extern LabelClassRec labelClassRec;</code> - -<code>#define LabelInheritSetText((LabelSetTextProc)_XtInherit)</code> -<code>#define LabelInheritGetText((LabelGetTextProc)_XtInherit)</code> - -<code>#endif LABELP_H</code> -</literallayout> +<programlisting> +#ifndef LABELP_H +#define LABELP_H + +#include <X11/Label.h> + +/* New representation types used by the Label widget */ +#define XtRJustify "Justify" + +/* New fields for the Label widget record */ +typedef struct { +/* Settable resources */ + Pixel foreground; + XFontStruct *font; + String label; /* text to display */ + XtJustify justify; + Dimension internal_width; /* # pixels horizontal border */ + Dimension internal_height; /* # pixels vertical border */ +/* Data derived from resources */ + GC normal_GC; + GC gray_GC; + Pixmap gray_pixmap; + Position label_x; + Position label_y; + Dimension label_width; + Dimension label_height; + Cardinal label_len; + Boolean display_sensitive; +} LabelPart; + +/* Full instance record declaration */ +typedef struct _LabelRec { + CorePart core; + LabelPart label; +} LabelRec; + +/* Types for Label class methods */ +typedef void (*LabelSetTextProc)(Widget w, String text); +typedef String (*LabelGetTextProc)(Widget w); + +/* New fields for the Label widget class record */ +typedef struct { + LabelSetTextProc set_text; + LabelGetTextProc get_text; + XtPointer extension; +} LabelClassPart; + +/* Full class record declaration */ +typedef struct _LabelClassRec { + CoreClassPart core_class; + LabelClassPart label_class; +} LabelClassRec; + +/* Class record variable */ +extern LabelClassRec labelClassRec; + +#define LabelInheritSetText((LabelSetTextProc)_XtInherit) +#define LabelInheritGetText((LabelGetTextProc)_XtInherit) + +#endif LABELP_H +</programlisting> <para> To accommodate operating systems with file name length restrictions, the name of the private .h file is the first nine characters of the @@ -1737,94 +1737,94 @@ The following is an abbreviated version of the .c file for a Label widget. The resources table is described in <xref linkend='Resource_Management' />. </para> -<literallayout> -<code>/* Resources specific to Label */</code> -<code>static XtResource resources[] = {</code> -<code> {XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel),</code> -<code> XtOffset(LabelWidget, label.foreground), XtRString,</code> -<code> XtDefaultForeground},</code> -<code> {XtNfont, XtCFont, XtRFontStruct, sizeof(XFontStruct *),</code> -<code> XtOffset(LabelWidget, label.font),XtRString,</code> -<code> XtDefaultFont},</code> -<code> {XtNlabel, XtCLabel, XtRString, sizeof(String),</code> -<code> XtOffset(LabelWidget, label.label), XtRString, NULL},</code> -<code> .</code> -<code> .</code> -<code> .</code> -<code>}</code> - -<code>/* Forward declarations of procedures */</code> -<code>static void ClassInitialize();</code> -<code>static void Initialize();</code> -<code>static void Realize();</code> -<code>static void SetText();</code> -<code>static void GetText();</code> -<code> .</code> -<code> .</code> -<code> .</code> -</literallayout> -<literallayout> -<code>/* Class record constant */</code> -<code>LabelClassRec labelClassRec = {</code> -<code> {</code> -<code> /* core_class fields */</code> -<code> /* superclass */ (WidgetClass)&coreClassRec,</code> -<code> /* class_name */ "Label",</code> -<code> /* widget_size */ sizeof(LabelRec),</code> -<code> /* class_initialize */ ClassInitialize,</code> -<code> /* class_part_initialize */ NULL,</code> -<code> /* class_inited */ False,</code> -<code> /* initialize */ Initialize,</code> -<code> /* initialize_hook */ NULL,</code> -<code> /* realize */ Realize,</code> -<code> /* actions */ NULL,</code> -<code> /* num_actions */ 0,</code> -<code> /* resources */ resources,</code> -<code> /* num_resources */ XtNumber(resources),</code> -<code> /* xrm_class */ NULLQUARK,</code> -<code> /* compress_motion */ True,</code> -<code> /* compress_exposure */ True,</code> -<code> /* compress_enterleave */ True,</code> -<code> /* visible_interest */ False,</code> -<code> /* destroy */ NULL,</code> -<code> /* resize */ Resize,</code> -<code> /* expose */ Redisplay,</code> -<code> /* set_values */ SetValues,</code> -<code> /* set_values_hook */ NULL,</code> -<code> /* set_values_almost */ XtInheritSetValuesAlmost,</code> -<code> /* get_values_hook */ NULL,</code> -<code> /* accept_focus */ NULL,</code> -<code> /* version */ XtVersion,</code> -<code> /* callback_offsets */ NULL,</code> -<code> /* tm_table */ NULL,</code> -<code> /* query_geometry */ XtInheritQueryGeometry,</code> -<code> /* display_accelerator */ NULL,</code> -<code> /* extension */ NULL</code> -<code> },</code> -<code> {</code> -<code> /* Label_class fields */</code> -<code> /* get_text */ GetText,</code> -<code> /* set_text */ SetText,</code> -<code> /* extension */ NULL</code> -<code> }</code> -<code>};</code> - -<code>/* Class record pointer */</code> -<code>WidgetClass labelWidgetClass = (WidgetClass) &labelClassRec;</code> - -<code>/* New method access routines */</code> -<code>void LabelSetText(Widget w, String text)</code> -<code>{</code> -<code> LabelWidgetClass lwc = (Label WidgetClass)XtClass(w);</code> -<code> XtCheckSubclass(w, labelWidgetClass, NULL);</code> -<code> *(lwc->label_class.set_text)(w, text)</code> -<code>}</code> - -<code>/* Private procedures */</code> -<code> .</code> -<code> .</code> -<code> .</code> -</literallayout> +<programlisting> +/* Resources specific to Label */ +static XtResource resources[] = { + {XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel), + XtOffset(LabelWidget, label.foreground), XtRString, + XtDefaultForeground}, + {XtNfont, XtCFont, XtRFontStruct, sizeof(XFontStruct *), + XtOffset(LabelWidget, label.font),XtRString, + XtDefaultFont}, + {XtNlabel, XtCLabel, XtRString, sizeof(String), + XtOffset(LabelWidget, label.label), XtRString, NULL}, + . + . + . +} + +/* Forward declarations of procedures */ +static void ClassInitialize(); +static void Initialize(); +static void Realize(); +static void SetText(); +static void GetText(); + . + . + . +</programlisting> +<programlisting> +/* Class record constant */ +LabelClassRec labelClassRec = { + { + /* core_class fields */ + /* superclass */ (WidgetClass)&coreClassRec, + /* class_name */ "Label", + /* widget_size */ sizeof(LabelRec), + /* class_initialize */ ClassInitialize, + /* class_part_initialize */ NULL, + /* class_inited */ False, + /* initialize */ Initialize, + /* initialize_hook */ NULL, + /* realize */ Realize, + /* actions */ NULL, + /* num_actions */ 0, + /* resources */ resources, + /* num_resources */ XtNumber(resources), + /* xrm_class */ NULLQUARK, + /* compress_motion */ True, + /* compress_exposure */ True, + /* compress_enterleave */ True, + /* visible_interest */ False, + /* destroy */ NULL, + /* resize */ Resize, + /* expose */ Redisplay, + /* set_values */ SetValues, + /* set_values_hook */ NULL, + /* set_values_almost */ XtInheritSetValuesAlmost, + /* get_values_hook */ NULL, + /* accept_focus */ NULL, + /* version */ XtVersion, + /* callback_offsets */ NULL, + /* tm_table */ NULL, + /* query_geometry */ XtInheritQueryGeometry, + /* display_accelerator */ NULL, + /* extension */ NULL + }, + { + /* Label_class fields */ + /* get_text */ GetText, + /* set_text */ SetText, + /* extension */ NULL + } +}; + +/* Class record pointer */ +WidgetClass labelWidgetClass = (WidgetClass) &labelClassRec; + +/* New method access routines */ +void LabelSetText(Widget w, String text) +{ + LabelWidgetClass lwc = (Label WidgetClass)XtClass(w); + XtCheckSubclass(w, labelWidgetClass, NULL); + *(lwc->label_class.set_text)(w, text) +} + +/* Private procedures */ + . + . + . +</programlisting> </sect2> <sect2 id="Widget_Class_and_Superclass_Look_Up"> @@ -2090,35 +2090,35 @@ the Intrinsics access the field's value only after accessing its corresponding superclass value (called downward superclass chaining) or before accessing its corresponding superclass value (called upward superclass chaining). The self-contained fields are</para> -<literallayout> -<code>In all widget classes: </code><emphasis remap='I'>class_name</emphasis> -<code> </code><emphasis remap='I'>class_initialize</emphasis> -<code> </code><emphasis remap='I'>widget_size</emphasis> -<code> </code><emphasis remap='I'>realize</emphasis> -<code> </code><emphasis remap='I'>visible_interest</emphasis> -<code> </code><emphasis remap='I'>resize</emphasis> -<code> </code><emphasis remap='I'>expose</emphasis> -<code> </code><emphasis remap='I'>accept_focus</emphasis> -<code> </code><emphasis remap='I'>compress_motion</emphasis> -<code> </code><emphasis remap='I'>compress_exposure</emphasis> -<code> </code><emphasis remap='I'>compress_enterleave</emphasis> -<code> </code><emphasis remap='I'>set_values_almost</emphasis> -<code> </code><emphasis remap='I'>tm_table</emphasis> -<code> </code><emphasis remap='I'>version</emphasis> -<code> </code><emphasis remap='I'>allocate</emphasis> -<code> </code><emphasis remap='I'>deallocate</emphasis> - -<code>In Composite widget classes: </code><emphasis remap='I'>geometry_manager</emphasis> -<code> </code><emphasis remap='I'>change_managed</emphasis> -<code> </code><emphasis remap='I'>insert_child</emphasis> -<code> </code><emphasis remap='I'>delete_child</emphasis> -<code> </code><emphasis remap='I'>accepts_objects</emphasis> -<code> </code><emphasis remap='I'>allows_change_managed_set</emphasis> - -<code>In Constraint widget classes: </code><emphasis remap='I'>constraint_size</emphasis> - -<code>In Shell widget classes: </code><emphasis remap='I'>root_geometry_manager</emphasis> -</literallayout> +<programlisting> +In all widget classes: <emphasis remap='I'>class_name</emphasis> + <emphasis remap='I'>class_initialize</emphasis> + <emphasis remap='I'>widget_size</emphasis> + <emphasis remap='I'>realize</emphasis> + <emphasis remap='I'>visible_interest</emphasis> + <emphasis remap='I'>resize</emphasis> + <emphasis remap='I'>expose</emphasis> + <emphasis remap='I'>accept_focus</emphasis> + <emphasis remap='I'>compress_motion</emphasis> + <emphasis remap='I'>compress_exposure</emphasis> + <emphasis remap='I'>compress_enterleave</emphasis> + <emphasis remap='I'>set_values_almost</emphasis> + <emphasis remap='I'>tm_table</emphasis> + <emphasis remap='I'>version</emphasis> + <emphasis remap='I'>allocate</emphasis> + <emphasis remap='I'>deallocate</emphasis> + +In Composite widget classes: <emphasis remap='I'>geometry_manager</emphasis> + <emphasis remap='I'>change_managed</emphasis> + <emphasis remap='I'>insert_child</emphasis> + <emphasis remap='I'>delete_child</emphasis> + <emphasis remap='I'>accepts_objects</emphasis> + <emphasis remap='I'>allows_change_managed_set</emphasis> + +In Constraint widget classes: <emphasis remap='I'>constraint_size</emphasis> + +In Shell widget classes: <emphasis remap='I'>root_geometry_manager</emphasis> +</programlisting> <para> With downward superclass chaining, @@ -2130,15 +2130,15 @@ Core class structures, then from the subclass structure, and so on down the class chain to that widget's class structure. These superclass-to-subclass fields are </para> -<literallayout> -<code> </code><emphasis remap='I'>class_part_initialize</emphasis> -<code> </code><emphasis remap='I'>get_values_hook</emphasis> -<code> </code><emphasis remap='I'>initialize</emphasis> -<code> </code><emphasis remap='I'>initialize_hook</emphasis> -<code> </code><emphasis remap='I'>set_values</emphasis> -<code> </code><emphasis remap='I'>set_values_hook</emphasis> -<code> </code><emphasis remap='I'>resources</emphasis> -</literallayout> +<programlisting> + <emphasis remap='I'>class_part_initialize</emphasis> + <emphasis remap='I'>get_values_hook</emphasis> + <emphasis remap='I'>initialize</emphasis> + <emphasis remap='I'>initialize_hook</emphasis> + <emphasis remap='I'>set_values</emphasis> + <emphasis remap='I'>set_values_hook</emphasis> + <emphasis remap='I'>resources</emphasis> +</programlisting> <para> In addition, for subclasses of @@ -2151,12 +2151,12 @@ structures are chained from the Constraint class down to the subclass: </para> -<literallayout> -<code> </code><emphasis remap='I'>resources</emphasis> -<code> </code><emphasis remap='I'>initialize</emphasis> -<code> </code><emphasis remap='I'>set_values</emphasis> -<code> </code><emphasis remap='I'>get_values_hook</emphasis> -</literallayout> +<programlisting> + <emphasis remap='I'>resources</emphasis> + <emphasis remap='I'>initialize</emphasis> + <emphasis remap='I'>set_values</emphasis> + <emphasis remap='I'>get_values_hook</emphasis> +</programlisting> <para> With upward superclass chaining, @@ -2170,10 +2170,10 @@ Object class structures. The subclass-to-superclass fields are </para> -<literallayout> -<code> </code><emphasis remap='I'>destroy</emphasis> -<code> </code><emphasis remap='I'>actions</emphasis> -</literallayout> +<programlisting> + <emphasis remap='I'>destroy</emphasis> + <emphasis remap='I'>actions</emphasis> +</programlisting> <para> For subclasses of @@ -2296,13 +2296,13 @@ a class structure is constant. <para> The following example provides the class initialization procedure for a Label class. </para> -<literallayout> -<code>static void ClassInitialize()</code> -<code>{</code> -<code> XtSetTypeConverter(XtRString, XtRJustify, CvtStringToJustify,</code> -<code> NULL, 0, XtCacheNone, NULL);</code> -<code>}</code> -</literallayout> +<programlisting> +static void ClassInitialize() +{ + XtSetTypeConverter(XtRString, XtRJustify, CvtStringToJustify, + NULL, 0, XtCacheNone, NULL); +} +</programlisting> </sect2> <sect2 id="Initializing_a_Widget_Class"> @@ -2428,30 +2428,30 @@ For example, <function>CompositeP.h</function> contains these definitions: </para> -<literallayout> -<code>#define XtInheritGeometryManager ((XtGeometryHandler) _XtInherit)</code> -<code>#define XtInheritChangeManaged ((XtWidgetProc) _XtInherit)</code> -<code>#define XtInheritInsertChild ((XtArgsProc) _XtInherit)</code> -<code>#define XtInheritDeleteChild ((XtWidgetProc) _XtInherit)</code> -</literallayout> +<programlisting> +#define XtInheritGeometryManager ((XtGeometryHandler) _XtInherit) +#define XtInheritChangeManaged ((XtWidgetProc) _XtInherit) +#define XtInheritInsertChild ((XtArgsProc) _XtInherit) +#define XtInheritDeleteChild ((XtWidgetProc) _XtInherit) +</programlisting> <para> Composite's class_part_initialize procedure begins as follows: </para> -<literallayout> -<code>static void CompositeClassPartInitialize(WidgetClass widgetClass)</code> -<code>{</code> -<code> CompositeWidgetClass wc = (CompositeWidgetClass)widgetClass;</code> -<code> CompositeWidgetClass super = (CompositeWidgetClass)wc->core_class.superclass;</code> -<code> if (wc->composite_class.geometry_manager == XtInheritGeometryManager) {</code> -<code> wc->composite_class.geometry_manager = super->composite_class.geometry_manager;</code> -<code> }</code> -<code> if (wc->composite_class.change_managed == XtInheritChangeManaged) {</code> -<code> wc->composite_class.change_managed = super->composite_class.change_managed;</code> -<code> }</code> -<code> .</code> -<code> .</code> -<code> .</code> -</literallayout> +<programlisting> +static void CompositeClassPartInitialize(WidgetClass widgetClass) +{ + CompositeWidgetClass wc = (CompositeWidgetClass)widgetClass; + CompositeWidgetClass super = (CompositeWidgetClass)wc->core_class.superclass; + if (wc->composite_class.geometry_manager == XtInheritGeometryManager) { + wc->composite_class.geometry_manager = super->composite_class.geometry_manager; + } + if (wc->composite_class.change_managed == XtInheritChangeManaged) { + wc->composite_class.change_managed = super->composite_class.change_managed; + } + . + . + . +</programlisting> <para> Nonprocedure fields may be inherited in the same manner as procedure fields. The class may declare any reserved value it wishes for @@ -2622,14 +2622,14 @@ declared as a linked list, and each extension record definition should contain the following four fields at the beginning of the structure declaration: </para> -<literallayout> -<code>struct {</code> -<code> XtPointer next_extension;</code> -<code> XrmQuark record_type;</code> -<code> long version;</code> -<code> Cardinal record_size;</code> -<code>};</code> -</literallayout> +<programlisting> +struct { + XtPointer next_extension; + XrmQuark record_type; + long version; + Cardinal record_size; +}; +</programlisting> <variablelist> <varlistentry> |