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/*
* Copyright ( c ) 2013 Red Hat , Inc .
*
* This program is free software ; you can redistribute it and / or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation ; either version 2 of the License , or ( at your
* option ) any later version .
*
* This program is distributed in the hope that it will be useful , but
* WITHOUT ANY WARRANTY ; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE . See the GNU Lesser General Public
* License for more details .
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program ; if not , write to the Free Software Foundation ,
* Inc . , 51 Franklin St , Fifth Floor , Boston , MA 02110 - 1301 USA
*
* Author : Alexander Larsson < alexl @ redhat . com >
*
*/
# include "config.h"
# include <gtk/gtk.h>
# include "gtkstack.h"
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# include "gtkenums.h"
# include "gtkaccessibleprivate.h"
# include "gtkatcontextprivate.h"
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# include "gtkprivate.h"
# include "gtkintl.h"
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# include "gtkprogresstrackerprivate.h"
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# include "gtksettingsprivate.h"
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# include "gtksnapshot.h"
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# include "gtkwidgetprivate.h"
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# include "gtksingleselection.h"
# include "gtklistlistmodelprivate.h"
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# include <math.h>
# include <string.h>
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/**
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* GtkStack :
*
* ` GtkStack ` is a container which only shows one of its children
* at a time .
*
* In contrast to ` GtkNotebook ` , ` GtkStack ` does not provide a means
* for users to change the visible child . Instead , a separate widget
* such as [ class @ Gtk . StackSwitcher ] or [ class @ Gtk . StackSidebar ] can
* be used with ` GtkStack ` to provide this functionality .
*
* Transitions between pages can be animated as slides or fades . This
* can be controlled with [ method @ Gtk . Stack . set_transition_type ] .
* These animations respect the [ property @ Gtk . Settings : gtk - enable - animations ]
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* setting .
*
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* ` GtkStack ` maintains a [ class @ Gtk . StackPage ] object for each added
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* child , which holds additional per - child properties . You
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* obtain the ` GtkStackPage ` for a child with [ method @ Gtk . Stack . get_page ]
* and you can obtain a ` GtkSelectionModel ` containing all the pages
* with [ method @ Gtk . Stack . get_pages ] .
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*
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* # GtkStack as GtkBuildable
*
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* To set child - specific properties in a . ui file , create ` GtkStackPage `
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* objects explicitly , and set the child widget as a property on it :
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*
* ` ` ` xml
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* < object class = " GtkStack " id = " stack " >
* < child >
* < object class = " GtkStackPage " >
* < property name = " name " > page1 < / property >
* < property name = " title " > In the beginning … < / property >
* < property name = " child " >
* < object class = " GtkLabel " >
* < property name = " label " > It was dark < / property >
* < / object >
* < / property >
* < / object >
* < / child >
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* ` ` `
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*
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* # CSS nodes
*
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* ` GtkStack ` has a single CSS node named stack .
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*
* # Accessibility
*
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* ` GtkStack ` uses the % GTK_ACCESSIBLE_ROLE_TAB_PANEL for the stack
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* pages , which are the accessible parent objects of the child widgets .
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*/
/**
* GtkStackTransitionType :
* @ GTK_STACK_TRANSITION_TYPE_NONE : No transition
* @ GTK_STACK_TRANSITION_TYPE_CROSSFADE : A cross - fade
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* @ GTK_STACK_TRANSITION_TYPE_SLIDE_RIGHT : Slide from left to right
* @ GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT : Slide from right to left
* @ GTK_STACK_TRANSITION_TYPE_SLIDE_UP : Slide from bottom up
* @ GTK_STACK_TRANSITION_TYPE_SLIDE_DOWN : Slide from top down
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* @ GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT_RIGHT : Slide from left or right according to the children order
* @ GTK_STACK_TRANSITION_TYPE_SLIDE_UP_DOWN : Slide from top down or bottom up according to the order
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* @ GTK_STACK_TRANSITION_TYPE_OVER_UP : Cover the old page by sliding up
* @ GTK_STACK_TRANSITION_TYPE_OVER_DOWN : Cover the old page by sliding down
* @ GTK_STACK_TRANSITION_TYPE_OVER_LEFT : Cover the old page by sliding to the left
* @ GTK_STACK_TRANSITION_TYPE_OVER_RIGHT : Cover the old page by sliding to the right
* @ GTK_STACK_TRANSITION_TYPE_UNDER_UP : Uncover the new page by sliding up
* @ GTK_STACK_TRANSITION_TYPE_UNDER_DOWN : Uncover the new page by sliding down
* @ GTK_STACK_TRANSITION_TYPE_UNDER_LEFT : Uncover the new page by sliding to the left
* @ GTK_STACK_TRANSITION_TYPE_UNDER_RIGHT : Uncover the new page by sliding to the right
* @ GTK_STACK_TRANSITION_TYPE_OVER_UP_DOWN : Cover the old page sliding up or uncover the new page sliding down , according to order
* @ GTK_STACK_TRANSITION_TYPE_OVER_DOWN_UP : Cover the old page sliding down or uncover the new page sliding up , according to order
* @ GTK_STACK_TRANSITION_TYPE_OVER_LEFT_RIGHT : Cover the old page sliding left or uncover the new page sliding right , according to order
* @ GTK_STACK_TRANSITION_TYPE_OVER_RIGHT_LEFT : Cover the old page sliding right or uncover the new page sliding left , according to order
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* @ GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT : Pretend the pages are sides of a cube and rotate that cube to the left
* @ GTK_STACK_TRANSITION_TYPE_ROTATE_RIGHT : Pretend the pages are sides of a cube and rotate that cube to the right
* @ GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT_RIGHT : Pretend the pages are sides of a cube and rotate that cube to the left or right according to the children order
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*
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* Possible transitions between pages in a ` GtkStack ` widget .
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*
* New values may be added to this enumeration over time .
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*/
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/**
* GtkStackPage :
*
* ` GtkStackPage ` is an auxiliary class used by ` GtkStack ` .
*/
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/* TODO:
* filter events out events to the last_child widget during transitions
*/
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struct _GtkStack {
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GtkWidget parent_instance ;
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} ;
typedef struct _GtkStackClass GtkStackClass ;
struct _GtkStackClass {
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GtkWidgetClass parent_class ;
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} ;
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typedef struct {
GList * children ;
GtkStackPage * visible_child ;
gboolean hhomogeneous ;
gboolean vhomogeneous ;
GtkStackTransitionType transition_type ;
guint transition_duration ;
GtkStackPage * last_visible_child ;
guint tick_id ;
GtkProgressTracker tracker ;
gboolean first_frame_skipped ;
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int last_visible_widget_width ;
int last_visible_widget_height ;
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gboolean interpolate_size ;
GtkStackTransitionType active_transition_type ;
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GtkSelectionModel * pages ;
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} GtkStackPrivate ;
static void gtk_stack_buildable_interface_init ( GtkBuildableIface * iface ) ;
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G_DEFINE_TYPE_WITH_CODE ( GtkStack , gtk_stack , GTK_TYPE_WIDGET ,
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G_ADD_PRIVATE ( GtkStack )
G_IMPLEMENT_INTERFACE ( GTK_TYPE_BUILDABLE ,
gtk_stack_buildable_interface_init ) )
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enum {
PROP_0 ,
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PROP_HHOMOGENEOUS ,
PROP_VHOMOGENEOUS ,
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PROP_VISIBLE_CHILD ,
PROP_VISIBLE_CHILD_NAME ,
PROP_TRANSITION_DURATION ,
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PROP_TRANSITION_TYPE ,
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PROP_TRANSITION_RUNNING ,
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PROP_INTERPOLATE_SIZE ,
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PROP_PAGES ,
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LAST_PROP
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} ;
enum
{
CHILD_PROP_0 ,
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CHILD_PROP_CHILD ,
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CHILD_PROP_NAME ,
CHILD_PROP_TITLE ,
CHILD_PROP_ICON_NAME ,
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CHILD_PROP_NEEDS_ATTENTION ,
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CHILD_PROP_VISIBLE ,
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CHILD_PROP_USE_UNDERLINE ,
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LAST_CHILD_PROP ,
PROP_ACCESSIBLE_ROLE
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} ;
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struct _GtkStackPage
{
GObject parent_instance ;
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GtkWidget * widget ;
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char * name ;
char * title ;
char * icon_name ;
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GtkWidget * last_focus ;
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GtkATContext * at_context ;
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guint needs_attention : 1 ;
guint visible : 1 ;
guint use_underline : 1 ;
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} ;
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typedef struct _GtkStackPageClass GtkStackPageClass ;
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struct _GtkStackPageClass
{
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GObjectClass parent_class ;
} ;
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static GParamSpec * stack_props [ LAST_PROP ] = { NULL , } ;
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static GParamSpec * stack_page_props [ LAST_CHILD_PROP ] = { NULL , } ;
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static GtkATContext *
gtk_stack_page_accessible_get_at_context ( GtkAccessible * accessible )
{
GtkStackPage * page = GTK_STACK_PAGE ( accessible ) ;
if ( page - > at_context = = NULL )
{
GtkAccessibleRole role = GTK_ACCESSIBLE_ROLE_TAB_PANEL ;
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GdkDisplay * display ;
if ( page - > widget ! = NULL )
display = gtk_widget_get_display ( page - > widget ) ;
else
display = gdk_display_get_default ( ) ;
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page - > at_context = gtk_at_context_create ( role , accessible , display ) ;
}
return page - > at_context ;
}
static gboolean
gtk_stack_page_accessible_get_platform_state ( GtkAccessible * self ,
GtkAccessiblePlatformState state )
{
return FALSE ;
}
static void
gtk_stack_page_accessible_init ( GtkAccessibleInterface * iface )
{
iface - > get_at_context = gtk_stack_page_accessible_get_at_context ;
iface - > get_platform_state = gtk_stack_page_accessible_get_platform_state ;
}
G_DEFINE_TYPE_WITH_CODE ( GtkStackPage , gtk_stack_page , G_TYPE_OBJECT ,
G_IMPLEMENT_INTERFACE ( GTK_TYPE_ACCESSIBLE ,
gtk_stack_page_accessible_init ) )
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static void
gtk_stack_page_init ( GtkStackPage * page )
{
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page - > visible = TRUE ;
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}
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static void
gtk_stack_page_finalize ( GObject * object )
{
GtkStackPage * page = GTK_STACK_PAGE ( object ) ;
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g_clear_object ( & page - > widget ) ;
g_free ( page - > name ) ;
g_free ( page - > title ) ;
g_free ( page - > icon_name ) ;
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if ( page - > last_focus )
g_object_remove_weak_pointer ( G_OBJECT ( page - > last_focus ) ,
( gpointer * ) & page - > last_focus ) ;
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g_clear_object ( & page - > at_context ) ;
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G_OBJECT_CLASS ( gtk_stack_page_parent_class ) - > finalize ( object ) ;
}
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static void
gtk_stack_page_dispose ( GObject * object )
{
GtkStackPage * page = GTK_STACK_PAGE ( object ) ;
if ( page - > at_context ! = NULL )
gtk_at_context_unrealize ( page - > at_context ) ;
G_OBJECT_CLASS ( gtk_stack_page_parent_class ) - > dispose ( object ) ;
}
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static void
gtk_stack_page_get_property ( GObject * object ,
guint property_id ,
GValue * value ,
GParamSpec * pspec )
{
GtkStackPage * info = GTK_STACK_PAGE ( object ) ;
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switch ( property_id )
{
case CHILD_PROP_CHILD :
g_value_set_object ( value , info - > widget ) ;
break ;
case CHILD_PROP_NAME :
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g_value_set_string ( value , gtk_stack_page_get_name ( info ) ) ;
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break ;
case CHILD_PROP_TITLE :
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g_value_set_string ( value , gtk_stack_page_get_title ( info ) ) ;
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break ;
case CHILD_PROP_ICON_NAME :
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g_value_set_string ( value , gtk_stack_page_get_icon_name ( info ) ) ;
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break ;
case CHILD_PROP_NEEDS_ATTENTION :
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g_value_set_boolean ( value , gtk_stack_page_get_needs_attention ( info ) ) ;
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break ;
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case CHILD_PROP_VISIBLE :
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g_value_set_boolean ( value , gtk_stack_page_get_visible ( info ) ) ;
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break ;
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case CHILD_PROP_USE_UNDERLINE :
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g_value_set_boolean ( value , gtk_stack_page_get_use_underline ( info ) ) ;
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break ;
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case PROP_ACCESSIBLE_ROLE :
g_value_set_enum ( value , GTK_ACCESSIBLE_ROLE_TAB_PANEL ) ;
break ;
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default :
G_OBJECT_WARN_INVALID_PROPERTY_ID ( object , property_id , pspec ) ;
break ;
}
}
static void
gtk_stack_page_set_property ( GObject * object ,
guint property_id ,
const GValue * value ,
GParamSpec * pspec )
{
GtkStackPage * info = GTK_STACK_PAGE ( object ) ;
switch ( property_id )
{
case CHILD_PROP_CHILD :
g_set_object ( & info - > widget , g_value_get_object ( value ) ) ;
break ;
case CHILD_PROP_NAME :
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gtk_stack_page_set_name ( info , g_value_get_string ( value ) ) ;
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break ;
case CHILD_PROP_TITLE :
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gtk_stack_page_set_title ( info , g_value_get_string ( value ) ) ;
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break ;
case CHILD_PROP_ICON_NAME :
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gtk_stack_page_set_icon_name ( info , g_value_get_string ( value ) ) ;
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break ;
case CHILD_PROP_NEEDS_ATTENTION :
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gtk_stack_page_set_needs_attention ( info , g_value_get_boolean ( value ) ) ;
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break ;
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case CHILD_PROP_VISIBLE :
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gtk_stack_page_set_visible ( info , g_value_get_boolean ( value ) ) ;
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break ;
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case CHILD_PROP_USE_UNDERLINE :
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gtk_stack_page_set_use_underline ( info , g_value_get_boolean ( value ) ) ;
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break ;
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case PROP_ACCESSIBLE_ROLE :
break ;
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default :
G_OBJECT_WARN_INVALID_PROPERTY_ID ( object , property_id , pspec ) ;
break ;
}
}
static void
gtk_stack_page_class_init ( GtkStackPageClass * class )
{
GObjectClass * object_class = G_OBJECT_CLASS ( class ) ;
object_class - > finalize = gtk_stack_page_finalize ;
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object_class - > dispose = gtk_stack_page_dispose ;
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object_class - > get_property = gtk_stack_page_get_property ;
object_class - > set_property = gtk_stack_page_set_property ;
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/**
* GtkStackPage : child : ( attributes org . gtk . Property . get = gtk_stack_page_get_child )
*
* The child that this page is for .
*/
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stack_page_props [ CHILD_PROP_CHILD ] =
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g_param_spec_object ( " child " ,
P_ ( " Child " ) ,
P_ ( " The child of the page " ) ,
GTK_TYPE_WIDGET ,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY ) ;
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/**
* GtkStackPage : name : ( attributes org . gtk . Property . get = gtk_stack_page_get_name org . gtk . Property . set = gtk_stack_page_set_name )
*
* The name of the child page .
*/
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stack_page_props [ CHILD_PROP_NAME ] =
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g_param_spec_string ( " name " ,
P_ ( " Name " ) ,
P_ ( " The name of the child page " ) ,
NULL ,
GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY ) ;
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/**
* GtkStackPage : title : ( attributes org . gtk . Property . get = gtk_stack_page_get_title org . gtk . Property . set = gtk_stack_page_set_title )
*
* The title of the child page .
*/
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stack_page_props [ CHILD_PROP_TITLE ] =
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g_param_spec_string ( " title " ,
P_ ( " Title " ) ,
P_ ( " The title of the child page " ) ,
NULL ,
GTK_PARAM_READWRITE ) ;
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/**
* GtkStackPage : icon - name : ( attributes org . gtk . Property . get = gtk_stack_page_get_icon_name org . gtk . Property . set = gtk_stack_page_set_icon_name )
*
* The icon name of the child page .
*/
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stack_page_props [ CHILD_PROP_ICON_NAME ] =
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g_param_spec_string ( " icon-name " ,
P_ ( " Icon name " ) ,
P_ ( " The icon name of the child page " ) ,
NULL ,
GTK_PARAM_READWRITE ) ;
/**
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* GtkStackPage : needs - attention : ( attributes org . gtk . Property . get = gtk_stack_page_get_needs_attention org . gtk . Property . set = gtk_stack_page_set_needs_attention )
*
* Whether the page requires the user attention .
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*
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* This is used by the [ class @ Gtk . StackSwitcher ] to change the
* appearance of the corresponding button when a page needs
* attention and it is not the current one .
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*/
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stack_page_props [ CHILD_PROP_NEEDS_ATTENTION ] =
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g_param_spec_boolean ( " needs-attention " ,
P_ ( " Needs Attention " ) ,
P_ ( " Whether this page needs attention " ) ,
FALSE ,
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GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY ) ;
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/**
* GtkStackPage : visible : ( attributes org . gtk . Property . get = gtk_stack_page_get_visible org . gtk . Property . set = gtk_stack_page_set_visible )
*
* Whether this page is visible .
*/
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stack_page_props [ CHILD_PROP_VISIBLE ] =
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g_param_spec_boolean ( " visible " ,
P_ ( " Visible " ) ,
P_ ( " Whether this page is visible " ) ,
TRUE ,
GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY ) ;
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/**
* GtkStackPage : use - underline : ( attributes org . gtk . Property . get = gtk_stack_page_get_use_underline org . gtk . Property . set = gtk_stack_page_set_use_underline )
*
* If set , an underline in the title indicates a mnemonic .
*/
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stack_page_props [ CHILD_PROP_USE_UNDERLINE ] =
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g_param_spec_boolean ( " use-underline " ,
P_ ( " Use underline " ) ,
P_ ( " If set, an underline in the title indicates the next character should be used for the mnemonic accelerator key " ) ,
FALSE ,
GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY ) ;
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g_object_class_install_properties ( object_class , LAST_CHILD_PROP , stack_page_props ) ;
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g_object_class_override_property ( object_class , PROP_ACCESSIBLE_ROLE , " accessible-role " ) ;
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}
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# define GTK_TYPE_STACK_PAGES (gtk_stack_pages_get_type ())
G_DECLARE_FINAL_TYPE ( GtkStackPages , gtk_stack_pages , GTK , STACK_PAGES , GObject )
struct _GtkStackPages
{
GObject parent_instance ;
GtkStack * stack ;
} ;
struct _GtkStackPagesClass
{
GObjectClass parent_class ;
} ;
static GType
gtk_stack_pages_get_item_type ( GListModel * model )
{
return GTK_TYPE_STACK_PAGE ;
}
static guint
gtk_stack_pages_get_n_items ( GListModel * model )
{
GtkStackPages * pages = GTK_STACK_PAGES ( model ) ;
GtkStackPrivate * priv = gtk_stack_get_instance_private ( pages - > stack ) ;
return g_list_length ( priv - > children ) ;
}
static gpointer
gtk_stack_pages_get_item ( GListModel * model ,
guint position )
{
GtkStackPages * pages = GTK_STACK_PAGES ( model ) ;
GtkStackPrivate * priv = gtk_stack_get_instance_private ( pages - > stack ) ;
GtkStackPage * page ;
page = g_list_nth_data ( priv - > children , position ) ;
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if ( ! page )
return NULL ;
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return g_object_ref ( page ) ;
}
static void
gtk_stack_pages_list_model_init ( GListModelInterface * iface )
{
iface - > get_item_type = gtk_stack_pages_get_item_type ;
iface - > get_n_items = gtk_stack_pages_get_n_items ;
iface - > get_item = gtk_stack_pages_get_item ;
}
static gboolean
gtk_stack_pages_is_selected ( GtkSelectionModel * model ,
guint position )
{
GtkStackPages * pages = GTK_STACK_PAGES ( model ) ;
GtkStackPrivate * priv = gtk_stack_get_instance_private ( pages - > stack ) ;
GtkStackPage * page ;
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page = g_list_nth_data ( priv - > children , position ) ;
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return page & & page = = priv - > visible_child ;
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}
static void set_visible_child ( GtkStack * stack ,
GtkStackPage * child_info ,
GtkStackTransitionType transition_type ,
guint transition_duration ) ;
static gboolean
gtk_stack_pages_select_item ( GtkSelectionModel * model ,
guint position ,
gboolean exclusive )
{
GtkStackPages * pages = GTK_STACK_PAGES ( model ) ;
GtkStackPrivate * priv = gtk_stack_get_instance_private ( pages - > stack ) ;
GtkStackPage * page ;
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page = g_list_nth_data ( priv - > children , position ) ;
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set_visible_child ( pages - > stack , page , priv - > transition_type , priv - > transition_duration ) ;
return TRUE ;
}
static void
gtk_stack_pages_selection_model_init ( GtkSelectionModelInterface * iface )
{
iface - > is_selected = gtk_stack_pages_is_selected ;
iface - > select_item = gtk_stack_pages_select_item ;
}
G_DEFINE_TYPE_WITH_CODE ( GtkStackPages , gtk_stack_pages , G_TYPE_OBJECT ,
G_IMPLEMENT_INTERFACE ( G_TYPE_LIST_MODEL , gtk_stack_pages_list_model_init )
G_IMPLEMENT_INTERFACE ( GTK_TYPE_SELECTION_MODEL , gtk_stack_pages_selection_model_init ) )
static void
gtk_stack_pages_init ( GtkStackPages * pages )
{
}
static void
gtk_stack_pages_class_init ( GtkStackPagesClass * class )
{
}
static GtkStackPages *
gtk_stack_pages_new ( GtkStack * stack )
{
GtkStackPages * pages ;
pages = g_object_new ( GTK_TYPE_STACK_PAGES , NULL ) ;
pages - > stack = stack ;
return pages ;
}
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static GtkStackPage * gtk_stack_add_internal ( GtkStack * stack ,
GtkWidget * child ,
const char * name ,
const char * title ) ;
static GtkSizeRequestMode gtk_stack_get_request_mode ( GtkWidget * widget ) ;
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static void gtk_stack_compute_expand ( GtkWidget * widget ,
gboolean * hexpand ,
gboolean * vexpand ) ;
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static void gtk_stack_size_allocate ( GtkWidget * widget ,
int width ,
int height ,
int baseline ) ;
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static void gtk_stack_snapshot ( GtkWidget * widget ,
GtkSnapshot * snapshot ) ;
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static void gtk_stack_measure ( GtkWidget * widget ,
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GtkOrientation orientation ,
int for_size ,
int * minimum ,
int * natural ,
int * minimum_baseline ,
int * natural_baseline ) ;
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static void gtk_stack_dispose ( GObject * obj ) ;
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static void gtk_stack_finalize ( GObject * obj ) ;
static void gtk_stack_get_property ( GObject * object ,
guint property_id ,
GValue * value ,
GParamSpec * pspec ) ;
static void gtk_stack_set_property ( GObject * object ,
guint property_id ,
const GValue * value ,
GParamSpec * pspec ) ;
static void gtk_stack_unschedule_ticks ( GtkStack * stack ) ;
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static void gtk_stack_add_page ( GtkStack * stack ,
GtkStackPage * page ) ;
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static GtkBuildableIface * parent_buildable_iface ;
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static void
gtk_stack_buildable_add_child ( GtkBuildable * buildable ,
GtkBuilder * builder ,
GObject * child ,
const char * type )
{
if ( GTK_IS_STACK_PAGE ( child ) )
gtk_stack_add_page ( GTK_STACK ( buildable ) , GTK_STACK_PAGE ( child ) ) ;
else if ( GTK_IS_WIDGET ( child ) )
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gtk_stack_add_internal ( GTK_STACK ( buildable ) , GTK_WIDGET ( child ) , NULL , NULL ) ;
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else
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parent_buildable_iface - > add_child ( buildable , builder , child , type ) ;
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}
static void
gtk_stack_buildable_interface_init ( GtkBuildableIface * iface )
{
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parent_buildable_iface = g_type_interface_peek_parent ( iface ) ;
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iface - > add_child = gtk_stack_buildable_add_child ;
}
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static void stack_remove ( GtkStack * stack ,
GtkWidget * child ,
gboolean in_dispose ) ;
static void
gtk_stack_dispose ( GObject * obj )
{
GtkStack * stack = GTK_STACK ( obj ) ;
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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GtkWidget * child ;
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if ( priv - > pages )
g_list_model_items_changed ( G_LIST_MODEL ( priv - > pages ) , 0 , g_list_length ( priv - > children ) , 0 ) ;
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while ( ( child = gtk_widget_get_first_child ( GTK_WIDGET ( stack ) ) ) )
stack_remove ( stack , child , TRUE ) ;
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G_OBJECT_CLASS ( gtk_stack_parent_class ) - > dispose ( obj ) ;
}
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static void
gtk_stack_finalize ( GObject * obj )
{
GtkStack * stack = GTK_STACK ( obj ) ;
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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if ( priv - > pages )
g_object_remove_weak_pointer ( G_OBJECT ( priv - > pages ) , ( gpointer * ) & priv - > pages ) ;
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gtk_stack_unschedule_ticks ( stack ) ;
G_OBJECT_CLASS ( gtk_stack_parent_class ) - > finalize ( obj ) ;
}
static void
gtk_stack_get_property ( GObject * object ,
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guint property_id ,
GValue * value ,
GParamSpec * pspec )
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{
GtkStack * stack = GTK_STACK ( object ) ;
switch ( property_id )
{
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case PROP_HHOMOGENEOUS :
g_value_set_boolean ( value , gtk_stack_get_hhomogeneous ( stack ) ) ;
break ;
case PROP_VHOMOGENEOUS :
g_value_set_boolean ( value , gtk_stack_get_vhomogeneous ( stack ) ) ;
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break ;
case PROP_VISIBLE_CHILD :
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g_value_set_object ( value , gtk_stack_get_visible_child ( stack ) ) ;
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break ;
case PROP_VISIBLE_CHILD_NAME :
g_value_set_string ( value , gtk_stack_get_visible_child_name ( stack ) ) ;
break ;
case PROP_TRANSITION_DURATION :
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g_value_set_uint ( value , gtk_stack_get_transition_duration ( stack ) ) ;
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break ;
case PROP_TRANSITION_TYPE :
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g_value_set_enum ( value , gtk_stack_get_transition_type ( stack ) ) ;
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break ;
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case PROP_TRANSITION_RUNNING :
g_value_set_boolean ( value , gtk_stack_get_transition_running ( stack ) ) ;
break ;
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case PROP_INTERPOLATE_SIZE :
g_value_set_boolean ( value , gtk_stack_get_interpolate_size ( stack ) ) ;
break ;
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case PROP_PAGES :
g_value_set_object ( value , gtk_stack_get_pages ( stack ) ) ;
break ;
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default :
G_OBJECT_WARN_INVALID_PROPERTY_ID ( object , property_id , pspec ) ;
break ;
}
}
static void
gtk_stack_set_property ( GObject * object ,
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guint property_id ,
const GValue * value ,
GParamSpec * pspec )
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{
GtkStack * stack = GTK_STACK ( object ) ;
switch ( property_id )
{
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case PROP_HHOMOGENEOUS :
gtk_stack_set_hhomogeneous ( stack , g_value_get_boolean ( value ) ) ;
break ;
case PROP_VHOMOGENEOUS :
gtk_stack_set_vhomogeneous ( stack , g_value_get_boolean ( value ) ) ;
break ;
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case PROP_VISIBLE_CHILD :
gtk_stack_set_visible_child ( stack , g_value_get_object ( value ) ) ;
break ;
case PROP_VISIBLE_CHILD_NAME :
gtk_stack_set_visible_child_name ( stack , g_value_get_string ( value ) ) ;
break ;
case PROP_TRANSITION_DURATION :
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gtk_stack_set_transition_duration ( stack , g_value_get_uint ( value ) ) ;
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break ;
case PROP_TRANSITION_TYPE :
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gtk_stack_set_transition_type ( stack , g_value_get_enum ( value ) ) ;
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break ;
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case PROP_INTERPOLATE_SIZE :
gtk_stack_set_interpolate_size ( stack , g_value_get_boolean ( value ) ) ;
break ;
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default :
G_OBJECT_WARN_INVALID_PROPERTY_ID ( object , property_id , pspec ) ;
break ;
}
}
static void
gtk_stack_class_init ( GtkStackClass * klass )
{
GObjectClass * object_class = G_OBJECT_CLASS ( klass ) ;
GtkWidgetClass * widget_class = GTK_WIDGET_CLASS ( klass ) ;
object_class - > get_property = gtk_stack_get_property ;
object_class - > set_property = gtk_stack_set_property ;
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object_class - > dispose = gtk_stack_dispose ;
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object_class - > finalize = gtk_stack_finalize ;
widget_class - > size_allocate = gtk_stack_size_allocate ;
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widget_class - > snapshot = gtk_stack_snapshot ;
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widget_class - > measure = gtk_stack_measure ;
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widget_class - > compute_expand = gtk_stack_compute_expand ;
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widget_class - > get_request_mode = gtk_stack_get_request_mode ;
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/**
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* GtkStack : hhomogeneous : ( attributes org . gtk . Property . get = gtk_stack_get_hhomogeneous org . gtk . Property . set = gtk_stack_set_hhomogeneous )
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*
* % TRUE if the stack allocates the same width for all children .
*/
stack_props [ PROP_HHOMOGENEOUS ] =
g_param_spec_boolean ( " hhomogeneous " , P_ ( " Horizontally homogeneous " ) , P_ ( " Horizontally homogeneous sizing " ) ,
TRUE ,
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GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY ) ;
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/**
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* GtkStack : vhomogeneous : ( attributes org . gtk . Property . get = gtk_stack_get_vhomogeneous org . gtk . Property . set = gtk_stack_set_vhomogeneous )
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*
* % TRUE if the stack allocates the same height for all children .
*/
stack_props [ PROP_VHOMOGENEOUS ] =
g_param_spec_boolean ( " vhomogeneous " , P_ ( " Vertically homogeneous " ) , P_ ( " Vertically homogeneous sizing " ) ,
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TRUE ,
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GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY ) ;
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/**
* GtkStack : visible - child : ( attributes org . gtk . Property . get = gtk_stack_get_visible_child org . gtk . Property . set = gtk_stack_set_visible_child )
*
* The widget currently visible in the stack .
*/
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stack_props [ PROP_VISIBLE_CHILD ] =
g_param_spec_object ( " visible-child " , P_ ( " Visible child " ) , P_ ( " The widget currently visible in the stack " ) ,
GTK_TYPE_WIDGET ,
GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY ) ;
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/**
* GtkStack : visible - child - name : ( attributes org . gtk . Property . get = gtk_stack_get_visible_child_name org . gtk . Poperty . set = gtk_stack_set_visible_child_name )
*
* The name of the widget currently visible in the stack .
*/
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stack_props [ PROP_VISIBLE_CHILD_NAME ] =
g_param_spec_string ( " visible-child-name " , P_ ( " Name of visible child " ) , P_ ( " The name of the widget currently visible in the stack " ) ,
NULL ,
GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY ) ;
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/**
* GtkStack : transition - duration : ( attributes org . gtk . Property . get = gtk_stack_get_transition_duration org . gtk . Property . set = gtk_stack_set_transition_duration )
*
* The animation duration , in milliseconds .
*/
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stack_props [ PROP_TRANSITION_DURATION ] =
g_param_spec_uint ( " transition-duration " , P_ ( " Transition duration " ) , P_ ( " The animation duration, in milliseconds " ) ,
0 , G_MAXUINT , 200 ,
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GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY ) ;
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/**
* GtkStack : transition - type : ( attributes org . gtk . Property . get = gtk_stack_get_transition_type org . gtk . Property . set = gtk_stack_set_transition_type )
*
* The type of animation used to transition .
*/
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stack_props [ PROP_TRANSITION_TYPE ] =
g_param_spec_enum ( " transition-type " , P_ ( " Transition type " ) , P_ ( " The type of animation used to transition " ) ,
GTK_TYPE_STACK_TRANSITION_TYPE , GTK_STACK_TRANSITION_TYPE_NONE ,
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GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY ) ;
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/**
* GtkStack : transition - running : ( attributes org . gtk . Property . get = gtk_stack_get_transition_running )
*
* Whether or not the transition is currently running .
*/
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stack_props [ PROP_TRANSITION_RUNNING ] =
g_param_spec_boolean ( " transition-running " , P_ ( " Transition running " ) , P_ ( " Whether or not the transition is currently running " ) ,
FALSE ,
GTK_PARAM_READABLE ) ;
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/**
* GtkStack : interpolate - size : ( attributes org . gtk . Property . get = gtk_stack_get_interpolate_size org . gtk . Property . set = gtk_stack_set_interpolate_size )
*
* Whether or not the size should smoothly change during the transition .
*/
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stack_props [ PROP_INTERPOLATE_SIZE ] =
g_param_spec_boolean ( " interpolate-size " , P_ ( " Interpolate size " ) , P_ ( " Whether or not the size should smoothly change when changing between differently sized children " ) ,
FALSE ,
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GTK_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY ) ;
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/**
* GtkStack : pages : ( attributes org . gtk . Property . get = gtk_stack_get_pages )
*
* A selection model with the stack pages .
*/
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stack_props [ PROP_PAGES ] =
g_param_spec_object ( " pages " , P_ ( " Pages " ) , P_ ( " A selection model with the stacks pages " ) ,
GTK_TYPE_SELECTION_MODEL ,
GTK_PARAM_READABLE ) ;
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g_object_class_install_properties ( object_class , LAST_PROP , stack_props ) ;
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gtk_widget_class_set_css_name ( widget_class , I_ ( " stack " ) ) ;
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gtk_widget_class_set_accessible_role ( widget_class , GTK_ACCESSIBLE_ROLE_GROUP ) ;
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}
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/**
* gtk_stack_new :
*
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* Creates a new ` GtkStack ` .
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*
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* Returns : a new ` GtkStack `
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*/
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GtkWidget *
gtk_stack_new ( void )
{
return g_object_new ( GTK_TYPE_STACK , NULL ) ;
}
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static GtkStackPage *
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find_child_info_for_widget ( GtkStack * stack ,
GtkWidget * child )
{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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GtkStackPage * info ;
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GList * l ;
for ( l = priv - > children ; l ! = NULL ; l = l - > next )
{
info = l - > data ;
if ( info - > widget = = child )
return info ;
}
return NULL ;
}
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static inline gboolean
is_left_transition ( GtkStackTransitionType transition_type )
{
return ( transition_type = = GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT | |
transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_LEFT ) ;
}
static inline gboolean
is_right_transition ( GtkStackTransitionType transition_type )
{
return ( transition_type = = GTK_STACK_TRANSITION_TYPE_SLIDE_RIGHT | |
transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_RIGHT ) ;
}
static inline gboolean
is_up_transition ( GtkStackTransitionType transition_type )
{
return ( transition_type = = GTK_STACK_TRANSITION_TYPE_SLIDE_UP | |
transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_UP ) ;
}
static inline gboolean
is_down_transition ( GtkStackTransitionType transition_type )
{
return ( transition_type = = GTK_STACK_TRANSITION_TYPE_SLIDE_DOWN | |
transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_DOWN ) ;
}
/* Transitions that cause the bin window to move */
static inline gboolean
is_window_moving_transition ( GtkStackTransitionType transition_type )
{
return ( transition_type = = GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT | |
transition_type = = GTK_STACK_TRANSITION_TYPE_SLIDE_RIGHT | |
transition_type = = GTK_STACK_TRANSITION_TYPE_SLIDE_UP | |
transition_type = = GTK_STACK_TRANSITION_TYPE_SLIDE_DOWN | |
transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_UP | |
transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_DOWN | |
transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_LEFT | |
transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_RIGHT ) ;
}
/* Transitions that change direction depending on the relative order of the
old and new child */
static inline gboolean
is_direction_dependent_transition ( GtkStackTransitionType transition_type )
{
return ( transition_type = = GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT_RIGHT | |
transition_type = = GTK_STACK_TRANSITION_TYPE_SLIDE_UP_DOWN | |
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transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_UP_DOWN | |
transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_DOWN_UP | |
transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_LEFT_RIGHT | |
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transition_type = = GTK_STACK_TRANSITION_TYPE_OVER_RIGHT_LEFT | |
transition_type = = GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT_RIGHT ) ;
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}
/* Returns simple transition type for a direction dependent transition, given
whether the new child ( the one being switched to ) is first in the stacking order
( added earlier ) . */
static inline GtkStackTransitionType
get_simple_transition_type ( gboolean new_child_first ,
GtkStackTransitionType transition_type )
{
switch ( transition_type )
{
case GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT_RIGHT :
return new_child_first ? GTK_STACK_TRANSITION_TYPE_SLIDE_RIGHT : GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT ;
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case GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT_RIGHT :
return new_child_first ? GTK_STACK_TRANSITION_TYPE_ROTATE_RIGHT : GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT ;
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case GTK_STACK_TRANSITION_TYPE_SLIDE_UP_DOWN :
return new_child_first ? GTK_STACK_TRANSITION_TYPE_SLIDE_DOWN : GTK_STACK_TRANSITION_TYPE_SLIDE_UP ;
case GTK_STACK_TRANSITION_TYPE_OVER_UP_DOWN :
return new_child_first ? GTK_STACK_TRANSITION_TYPE_UNDER_DOWN : GTK_STACK_TRANSITION_TYPE_OVER_UP ;
2014-03-19 03:42:59 +00:00
case GTK_STACK_TRANSITION_TYPE_OVER_DOWN_UP :
return new_child_first ? GTK_STACK_TRANSITION_TYPE_UNDER_UP : GTK_STACK_TRANSITION_TYPE_OVER_DOWN ;
case GTK_STACK_TRANSITION_TYPE_OVER_LEFT_RIGHT :
return new_child_first ? GTK_STACK_TRANSITION_TYPE_UNDER_RIGHT : GTK_STACK_TRANSITION_TYPE_OVER_LEFT ;
case GTK_STACK_TRANSITION_TYPE_OVER_RIGHT_LEFT :
return new_child_first ? GTK_STACK_TRANSITION_TYPE_UNDER_LEFT : GTK_STACK_TRANSITION_TYPE_OVER_RIGHT ;
2017-10-06 19:19:42 +00:00
case GTK_STACK_TRANSITION_TYPE_SLIDE_UP :
case GTK_STACK_TRANSITION_TYPE_SLIDE_DOWN :
case GTK_STACK_TRANSITION_TYPE_OVER_UP :
case GTK_STACK_TRANSITION_TYPE_OVER_DOWN :
case GTK_STACK_TRANSITION_TYPE_UNDER_UP :
case GTK_STACK_TRANSITION_TYPE_UNDER_DOWN :
case GTK_STACK_TRANSITION_TYPE_NONE :
case GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT :
case GTK_STACK_TRANSITION_TYPE_SLIDE_RIGHT :
case GTK_STACK_TRANSITION_TYPE_OVER_LEFT :
case GTK_STACK_TRANSITION_TYPE_OVER_RIGHT :
case GTK_STACK_TRANSITION_TYPE_UNDER_LEFT :
case GTK_STACK_TRANSITION_TYPE_UNDER_RIGHT :
case GTK_STACK_TRANSITION_TYPE_CROSSFADE :
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case GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT :
case GTK_STACK_TRANSITION_TYPE_ROTATE_RIGHT :
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default :
return transition_type ;
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}
}
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static int
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get_bin_window_x ( GtkStack * stack )
2013-04-21 11:51:14 +00:00
{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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int width ;
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int x = 0 ;
2017-12-06 06:56:12 +00:00
width = gtk_widget_get_width ( GTK_WIDGET ( stack ) ) ;
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2016-03-01 06:24:39 +00:00
if ( gtk_progress_tracker_get_state ( & priv - > tracker ) ! = GTK_PROGRESS_STATE_AFTER )
2013-04-21 11:51:14 +00:00
{
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if ( is_left_transition ( priv - > active_transition_type ) )
2017-06-18 13:45:42 +00:00
x = width * ( 1 - gtk_progress_tracker_get_ease_out_cubic ( & priv - > tracker , FALSE ) ) ;
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if ( is_right_transition ( priv - > active_transition_type ) )
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x = - width * ( 1 - gtk_progress_tracker_get_ease_out_cubic ( & priv - > tracker , FALSE ) ) ;
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}
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return x ;
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}
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static int
2017-06-04 15:30:40 +00:00
get_bin_window_y ( GtkStack * stack )
2013-04-22 00:17:40 +00:00
{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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int height ;
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int y = 0 ;
2017-12-06 06:56:12 +00:00
height = gtk_widget_get_height ( GTK_WIDGET ( stack ) ) ;
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2016-03-01 06:24:39 +00:00
if ( gtk_progress_tracker_get_state ( & priv - > tracker ) ! = GTK_PROGRESS_STATE_AFTER )
2013-04-22 00:17:40 +00:00
{
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if ( is_up_transition ( priv - > active_transition_type ) )
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y = height * ( 1 - gtk_progress_tracker_get_ease_out_cubic ( & priv - > tracker , FALSE ) ) ;
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if ( is_down_transition ( priv - > active_transition_type ) )
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y = - height * ( 1 - gtk_progress_tracker_get_ease_out_cubic ( & priv - > tracker , FALSE ) ) ;
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}
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return y ;
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}
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static void
gtk_stack_progress_updated ( GtkStack * stack )
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{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
2013-04-21 11:51:14 +00:00
2015-05-24 19:27:33 +00:00
if ( ! priv - > vhomogeneous | | ! priv - > hhomogeneous )
gtk_widget_queue_resize ( GTK_WIDGET ( stack ) ) ;
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else if ( is_window_moving_transition ( priv - > active_transition_type ) )
gtk_widget_queue_allocate ( GTK_WIDGET ( stack ) ) ;
2018-12-23 07:23:03 +00:00
else
gtk_widget_queue_draw ( GTK_WIDGET ( stack ) ) ;
2013-04-21 11:51:14 +00:00
2020-06-12 19:40:34 +00:00
if ( gtk_progress_tracker_get_state ( & priv - > tracker ) = = GTK_PROGRESS_STATE_AFTER & &
priv - > last_visible_child ! = NULL )
2013-04-21 11:51:14 +00:00
{
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gtk_widget_set_child_visible ( priv - > last_visible_child - > widget , FALSE ) ;
priv - > last_visible_child = NULL ;
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}
}
static gboolean
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gtk_stack_transition_cb ( GtkWidget * widget ,
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GdkFrameClock * frame_clock ,
gpointer user_data )
{
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GtkStack * stack = GTK_STACK ( widget ) ;
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
2013-04-21 11:51:14 +00:00
2016-03-02 01:19:50 +00:00
if ( priv - > first_frame_skipped )
gtk_progress_tracker_advance_frame ( & priv - > tracker ,
gdk_frame_clock_get_frame_time ( frame_clock ) ) ;
else
priv - > first_frame_skipped = TRUE ;
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/* Finish animation early if not mapped anymore */
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if ( ! gtk_widget_get_mapped ( widget ) )
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gtk_progress_tracker_finish ( & priv - > tracker ) ;
gtk_stack_progress_updated ( GTK_STACK ( widget ) ) ;
2013-04-21 11:51:14 +00:00
2016-03-01 06:24:39 +00:00
if ( gtk_progress_tracker_get_state ( & priv - > tracker ) = = GTK_PROGRESS_STATE_AFTER )
2013-04-21 11:51:14 +00:00
{
priv - > tick_id = 0 ;
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g_object_notify_by_pspec ( G_OBJECT ( stack ) , stack_props [ PROP_TRANSITION_RUNNING ] ) ;
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return FALSE ;
}
return TRUE ;
}
static void
gtk_stack_schedule_ticks ( GtkStack * stack )
{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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if ( priv - > tick_id = = 0 )
{
priv - > tick_id =
2014-04-16 13:36:22 +00:00
gtk_widget_add_tick_callback ( GTK_WIDGET ( stack ) , gtk_stack_transition_cb , stack , NULL ) ;
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g_object_notify_by_pspec ( G_OBJECT ( stack ) , stack_props [ PROP_TRANSITION_RUNNING ] ) ;
2013-04-21 11:51:14 +00:00
}
}
static void
gtk_stack_unschedule_ticks ( GtkStack * stack )
{
2013-07-02 11:43:20 +00:00
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
2013-04-21 11:51:14 +00:00
if ( priv - > tick_id ! = 0 )
{
gtk_widget_remove_tick_callback ( GTK_WIDGET ( stack ) , priv - > tick_id ) ;
priv - > tick_id = 0 ;
2013-11-11 21:38:35 +00:00
g_object_notify_by_pspec ( G_OBJECT ( stack ) , stack_props [ PROP_TRANSITION_RUNNING ] ) ;
2013-04-21 11:51:14 +00:00
}
}
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static GtkStackTransitionType
effective_transition_type ( GtkStack * stack ,
GtkStackTransitionType transition_type )
{
2017-01-11 14:27:51 +00:00
if ( _gtk_widget_get_direction ( GTK_WIDGET ( stack ) ) = = GTK_TEXT_DIR_RTL )
2013-04-21 23:53:57 +00:00
{
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switch ( transition_type )
{
case GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT :
return GTK_STACK_TRANSITION_TYPE_SLIDE_RIGHT ;
case GTK_STACK_TRANSITION_TYPE_SLIDE_RIGHT :
return GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT ;
2019-03-05 19:44:45 +00:00
case GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT :
return GTK_STACK_TRANSITION_TYPE_ROTATE_RIGHT ;
case GTK_STACK_TRANSITION_TYPE_ROTATE_RIGHT :
return GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT ;
2014-03-19 00:49:46 +00:00
case GTK_STACK_TRANSITION_TYPE_OVER_LEFT :
return GTK_STACK_TRANSITION_TYPE_OVER_RIGHT ;
case GTK_STACK_TRANSITION_TYPE_OVER_RIGHT :
return GTK_STACK_TRANSITION_TYPE_OVER_LEFT ;
case GTK_STACK_TRANSITION_TYPE_UNDER_LEFT :
return GTK_STACK_TRANSITION_TYPE_UNDER_RIGHT ;
case GTK_STACK_TRANSITION_TYPE_UNDER_RIGHT :
return GTK_STACK_TRANSITION_TYPE_UNDER_LEFT ;
2017-10-06 19:19:42 +00:00
case GTK_STACK_TRANSITION_TYPE_SLIDE_UP :
case GTK_STACK_TRANSITION_TYPE_SLIDE_DOWN :
case GTK_STACK_TRANSITION_TYPE_OVER_UP :
case GTK_STACK_TRANSITION_TYPE_OVER_DOWN :
case GTK_STACK_TRANSITION_TYPE_UNDER_UP :
case GTK_STACK_TRANSITION_TYPE_UNDER_DOWN :
case GTK_STACK_TRANSITION_TYPE_NONE :
case GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT_RIGHT :
case GTK_STACK_TRANSITION_TYPE_SLIDE_UP_DOWN :
case GTK_STACK_TRANSITION_TYPE_OVER_UP_DOWN :
case GTK_STACK_TRANSITION_TYPE_OVER_DOWN_UP :
case GTK_STACK_TRANSITION_TYPE_OVER_LEFT_RIGHT :
case GTK_STACK_TRANSITION_TYPE_OVER_RIGHT_LEFT :
case GTK_STACK_TRANSITION_TYPE_CROSSFADE :
2019-03-05 19:44:45 +00:00
case GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT_RIGHT :
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default :
return transition_type ;
2014-03-19 00:49:46 +00:00
}
2013-04-21 23:53:57 +00:00
}
2017-10-06 19:19:42 +00:00
else
{
return transition_type ;
}
2013-04-21 23:53:57 +00:00
}
2013-04-21 11:51:14 +00:00
static void
2013-04-21 18:22:35 +00:00
gtk_stack_start_transition ( GtkStack * stack ,
GtkStackTransitionType transition_type ,
guint transition_duration )
2013-04-21 11:51:14 +00:00
{
2013-07-02 11:43:20 +00:00
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
2013-04-21 11:51:14 +00:00
GtkWidget * widget = GTK_WIDGET ( stack ) ;
if ( gtk_widget_get_mapped ( widget ) & &
2016-05-01 04:39:55 +00:00
gtk_settings_get_enable_animations ( gtk_widget_get_settings ( widget ) ) & &
2013-04-21 18:22:35 +00:00
transition_type ! = GTK_STACK_TRANSITION_TYPE_NONE & &
transition_duration ! = 0 & &
2013-04-21 11:51:14 +00:00
priv - > last_visible_child ! = NULL )
{
2013-04-21 23:53:57 +00:00
priv - > active_transition_type = effective_transition_type ( stack , transition_type ) ;
2016-03-02 01:19:50 +00:00
priv - > first_frame_skipped = FALSE ;
2013-04-21 11:51:14 +00:00
gtk_stack_schedule_ticks ( stack ) ;
2016-03-01 06:24:39 +00:00
gtk_progress_tracker_start ( & priv - > tracker ,
priv - > transition_duration * 1000 ,
0 ,
1.0 ) ;
2013-04-21 11:51:14 +00:00
}
else
{
gtk_stack_unschedule_ticks ( stack ) ;
2013-04-21 18:22:35 +00:00
priv - > active_transition_type = GTK_STACK_TRANSITION_TYPE_NONE ;
2016-03-01 06:24:39 +00:00
gtk_progress_tracker_finish ( & priv - > tracker ) ;
2013-04-21 11:51:14 +00:00
}
2016-05-13 07:22:20 +00:00
gtk_stack_progress_updated ( GTK_STACK ( widget ) ) ;
2013-04-21 11:51:14 +00:00
}
static void
2013-04-21 18:22:35 +00:00
set_visible_child ( GtkStack * stack ,
2019-02-06 17:54:18 +00:00
GtkStackPage * child_info ,
2013-04-21 18:22:35 +00:00
GtkStackTransitionType transition_type ,
guint transition_duration )
2013-04-21 11:51:14 +00:00
{
2013-07-02 11:43:20 +00:00
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
2019-02-06 17:54:18 +00:00
GtkStackPage * info ;
2013-04-21 11:51:14 +00:00
GtkWidget * widget = GTK_WIDGET ( stack ) ;
GList * l ;
2014-12-11 03:32:45 +00:00
GtkWidget * focus ;
gboolean contains_focus = FALSE ;
2019-02-13 14:01:07 +00:00
guint old_pos = GTK_INVALID_LIST_POSITION ;
guint new_pos = GTK_INVALID_LIST_POSITION ;
2013-04-21 11:51:14 +00:00
2014-02-16 21:22:59 +00:00
/* if we are being destroyed, do not bother with transitions
2015-06-23 10:44:31 +00:00
* and notifications
*/
if ( gtk_widget_in_destruction ( widget ) )
2014-02-16 21:22:59 +00:00
return ;
2013-04-21 11:51:14 +00:00
/* If none, pick first visible */
if ( child_info = = NULL )
{
for ( l = priv - > children ; l ! = NULL ; l = l - > next )
{
info = l - > data ;
if ( gtk_widget_get_visible ( info - > widget ) )
{
child_info = info ;
break ;
}
}
}
if ( child_info = = priv - > visible_child )
return ;
2019-02-10 23:22:54 +00:00
if ( priv - > pages )
{
guint position ;
for ( l = priv - > children , position = 0 ; l ! = NULL ; l = l - > next , position + + )
{
info = l - > data ;
if ( info = = priv - > visible_child )
old_pos = position ;
else if ( info = = child_info )
new_pos = position ;
}
}
2019-03-02 13:49:00 +00:00
if ( gtk_widget_get_root ( widget ) )
focus = gtk_root_get_focus ( gtk_widget_get_root ( widget ) ) ;
else
focus = NULL ;
if ( focus & &
priv - > visible_child & &
priv - > visible_child - > widget & &
gtk_widget_is_ancestor ( focus , priv - > visible_child - > widget ) )
2014-12-11 03:32:45 +00:00
{
2019-03-02 13:49:00 +00:00
contains_focus = TRUE ;
if ( priv - > visible_child - > last_focus )
g_object_remove_weak_pointer ( G_OBJECT ( priv - > visible_child - > last_focus ) ,
( gpointer * ) & priv - > visible_child - > last_focus ) ;
priv - > visible_child - > last_focus = focus ;
g_object_add_weak_pointer ( G_OBJECT ( priv - > visible_child - > last_focus ) ,
( gpointer * ) & priv - > visible_child - > last_focus ) ;
2014-12-11 03:32:45 +00:00
}
2013-04-21 11:51:14 +00:00
if ( priv - > last_visible_child )
gtk_widget_set_child_visible ( priv - > last_visible_child - > widget , FALSE ) ;
priv - > last_visible_child = NULL ;
if ( priv - > visible_child & & priv - > visible_child - > widget )
{
if ( gtk_widget_is_visible ( widget ) )
2015-05-24 14:55:34 +00:00
{
priv - > last_visible_child = priv - > visible_child ;
2020-06-12 19:40:34 +00:00
priv - > last_visible_widget_width = gtk_widget_get_width ( widget ) ;
priv - > last_visible_widget_height = gtk_widget_get_height ( widget ) ;
2015-05-24 14:55:34 +00:00
}
2013-04-21 11:51:14 +00:00
else
2015-05-24 14:55:34 +00:00
{
gtk_widget_set_child_visible ( priv - > visible_child - > widget , FALSE ) ;
}
2013-04-21 11:51:14 +00:00
}
priv - > visible_child = child_info ;
if ( child_info )
2014-12-11 03:32:45 +00:00
{
gtk_widget_set_child_visible ( child_info - > widget , TRUE ) ;
if ( contains_focus )
{
if ( child_info - > last_focus )
gtk_widget_grab_focus ( child_info - > last_focus ) ;
else
gtk_widget_child_focus ( child_info - > widget , GTK_DIR_TAB_FORWARD ) ;
}
}
2013-04-21 11:51:14 +00:00
2013-06-13 18:33:42 +00:00
if ( ( child_info = = NULL | | priv - > last_visible_child = = NULL ) & &
2014-03-19 00:49:46 +00:00
is_direction_dependent_transition ( transition_type ) )
2013-06-13 18:33:42 +00:00
{
transition_type = GTK_STACK_TRANSITION_TYPE_NONE ;
}
2014-03-19 00:49:46 +00:00
else if ( is_direction_dependent_transition ( transition_type ) )
2013-06-13 18:33:42 +00:00
{
gboolean i_first = FALSE ;
2014-11-10 23:45:58 +00:00
for ( l = priv - > children ; l ! = NULL ; l = l - > next )
2013-06-13 18:33:42 +00:00
{
if ( child_info = = l - > data )
{
i_first = TRUE ;
break ;
}
if ( priv - > last_visible_child = = l - > data )
break ;
}
2014-03-19 00:49:46 +00:00
transition_type = get_simple_transition_type ( i_first , transition_type ) ;
2013-06-13 18:33:42 +00:00
}
2015-11-04 18:11:14 +00:00
if ( priv - > hhomogeneous & & priv - > vhomogeneous )
gtk_widget_queue_allocate ( widget ) ;
else
gtk_widget_queue_resize ( widget ) ;
2013-11-05 10:18:37 +00:00
g_object_notify_by_pspec ( G_OBJECT ( stack ) , stack_props [ PROP_VISIBLE_CHILD ] ) ;
g_object_notify_by_pspec ( G_OBJECT ( stack ) ,
stack_props [ PROP_VISIBLE_CHILD_NAME ] ) ;
2013-04-21 11:51:14 +00:00
2019-02-10 23:22:54 +00:00
if ( priv - > pages )
2019-02-13 14:01:07 +00:00
{
if ( old_pos = = GTK_INVALID_LIST_POSITION & & new_pos = = GTK_INVALID_LIST_POSITION )
; /* nothing to do */
else if ( old_pos = = GTK_INVALID_LIST_POSITION )
gtk_selection_model_selection_changed ( priv - > pages , new_pos , 1 ) ;
else if ( new_pos = = GTK_INVALID_LIST_POSITION )
gtk_selection_model_selection_changed ( priv - > pages , old_pos , 1 ) ;
else
gtk_selection_model_selection_changed ( priv - > pages ,
MIN ( old_pos , new_pos ) ,
MAX ( old_pos , new_pos ) - MIN ( old_pos , new_pos ) + 1 ) ;
}
2019-02-10 23:22:54 +00:00
2013-04-21 18:22:35 +00:00
gtk_stack_start_transition ( stack , transition_type , transition_duration ) ;
2013-04-21 11:51:14 +00:00
}
static void
2020-07-07 03:05:37 +00:00
update_child_visible ( GtkStack * stack ,
GtkStackPage * child_info )
2013-04-21 11:51:14 +00:00
{
2013-07-02 11:43:20 +00:00
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
2020-07-07 03:05:37 +00:00
gboolean visible ;
2013-04-21 11:51:14 +00:00
2020-07-07 03:05:37 +00:00
visible = child_info - > visible & & gtk_widget_get_visible ( child_info - > widget ) ;
2013-04-21 11:51:14 +00:00
2020-07-07 03:05:37 +00:00
if ( priv - > visible_child = = NULL & & visible )
2013-04-21 18:22:35 +00:00
set_visible_child ( stack , child_info , priv - > transition_type , priv - > transition_duration ) ;
2020-07-07 03:05:37 +00:00
else if ( priv - > visible_child = = child_info & & ! visible )
2013-04-21 18:22:35 +00:00
set_visible_child ( stack , NULL , priv - > transition_type , priv - > transition_duration ) ;
2013-04-21 11:51:14 +00:00
if ( child_info = = priv - > last_visible_child )
{
gtk_widget_set_child_visible ( priv - > last_visible_child - > widget , FALSE ) ;
priv - > last_visible_child = NULL ;
}
2020-10-25 02:04:26 +00:00
gtk_accessible_update_state ( GTK_ACCESSIBLE ( child_info ) ,
GTK_ACCESSIBLE_STATE_HIDDEN , ! visible ,
- 1 ) ;
2013-04-21 11:51:14 +00:00
}
2020-07-07 03:05:37 +00:00
static void
stack_child_visibility_notify_cb ( GObject * obj ,
GParamSpec * pspec ,
gpointer user_data )
{
GtkStack * stack = GTK_STACK ( user_data ) ;
GtkStackPage * child_info ;
child_info = find_child_info_for_widget ( stack , GTK_WIDGET ( obj ) ) ;
g_return_if_fail ( child_info ! = NULL ) ;
update_child_visible ( stack , child_info ) ;
}
2013-04-21 14:14:46 +00:00
/**
* gtk_stack_add_titled :
2021-02-27 23:23:47 +00:00
* @ stack : a ` GtkStack `
2013-04-21 14:14:46 +00:00
* @ child : the widget to add
2020-08-01 13:27:13 +00:00
* @ name : ( nullable ) : the name for @ child
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* @ title : a human - readable title for @ child
*
* Adds a child to @ stack .
2021-02-27 23:23:47 +00:00
*
2013-04-21 14:14:46 +00:00
* The child is identified by the @ name . The @ title
2021-02-27 23:23:47 +00:00
* will be used by ` GtkStackSwitcher ` to represent
2013-04-21 14:14:46 +00:00
* @ child in a tab bar , so it should be short .
2019-11-04 02:05:03 +00:00
*
2021-02-27 23:23:47 +00:00
* Returns : ( transfer none ) : the ` GtkStackPage ` for @ child
2013-04-21 14:14:46 +00:00
*/
2019-11-04 02:05:03 +00:00
GtkStackPage *
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gtk_stack_add_titled ( GtkStack * stack ,
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GtkWidget * child ,
const char * name ,
const char * title )
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{
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g_return_val_if_fail ( GTK_IS_STACK ( stack ) , NULL ) ;
g_return_val_if_fail ( GTK_IS_WIDGET ( child ) , NULL ) ;
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return gtk_stack_add_internal ( stack , child , name , title ) ;
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}
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/**
* gtk_stack_add_child :
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* @ stack : a ` GtkStack `
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* @ child : the widget to add
*
* Adds a child to @ stack .
*
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* Returns : ( transfer none ) : the ` GtkStackPage ` for @ child
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*/
GtkStackPage *
gtk_stack_add_child ( GtkStack * stack ,
GtkWidget * child )
{
g_return_val_if_fail ( GTK_IS_STACK ( stack ) , NULL ) ;
g_return_val_if_fail ( GTK_IS_WIDGET ( child ) , NULL ) ;
return gtk_stack_add_internal ( stack , child , NULL , NULL ) ;
}
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/**
* gtk_stack_add_named :
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* @ stack : a ` GtkStack `
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* @ child : the widget to add
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* @ name : ( nullable ) : the name for @ child or % NULL
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*
* Adds a child to @ stack .
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*
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* The child is identified by the @ name .
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*
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* Returns : ( transfer none ) : the ` GtkStackPage ` for @ child
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*/
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GtkStackPage *
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gtk_stack_add_named ( GtkStack * stack ,
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GtkWidget * child ,
const char * name )
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{
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g_return_val_if_fail ( GTK_IS_STACK ( stack ) , NULL ) ;
g_return_val_if_fail ( GTK_IS_WIDGET ( child ) , NULL ) ;
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return gtk_stack_add_internal ( stack , child , name , NULL ) ;
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}
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static GtkStackPage *
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gtk_stack_add_internal ( GtkStack * stack ,
GtkWidget * child ,
const char * name ,
const char * title )
{
GtkStackPage * child_info ;
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g_return_val_if_fail ( child ! = NULL , NULL ) ;
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child_info = g_object_new ( GTK_TYPE_STACK_PAGE , NULL ) ;
child_info - > widget = g_object_ref ( child ) ;
child_info - > name = g_strdup ( name ) ;
child_info - > title = g_strdup ( title ) ;
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child_info - > icon_name = NULL ;
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child_info - > needs_attention = FALSE ;
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child_info - > last_focus = NULL ;
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gtk_stack_add_page ( stack , child_info ) ;
g_object_unref ( child_info ) ;
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return child_info ;
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}
static void
gtk_stack_add_page ( GtkStack * stack ,
GtkStackPage * child_info )
{
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
GList * l ;
g_return_if_fail ( child_info - > widget ! = NULL ) ;
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if ( child_info - > name )
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{
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for ( l = priv - > children ; l ! = NULL ; l = l - > next )
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{
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GtkStackPage * info = l - > data ;
if ( info - > name & &
g_strcmp0 ( info - > name , child_info - > name ) = = 0 )
{
g_warning ( " While adding page: duplicate child name in GtkStack: %s " , child_info - > name ) ;
break ;
}
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}
}
priv - > children = g_list_append ( priv - > children , g_object_ref ( child_info ) ) ;
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gtk_widget_set_child_visible ( child_info - > widget , FALSE ) ;
gtk_widget_set_parent ( child_info - > widget , GTK_WIDGET ( stack ) ) ;
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if ( priv - > pages )
g_list_model_items_changed ( G_LIST_MODEL ( priv - > pages ) , g_list_length ( priv - > children ) - 1 , 0 , 1 ) ;
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g_signal_connect ( child_info - > widget , " notify::visible " ,
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G_CALLBACK ( stack_child_visibility_notify_cb ) , stack ) ;
if ( priv - > visible_child = = NULL & &
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gtk_widget_get_visible ( child_info - > widget ) )
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set_visible_child ( stack , child_info , priv - > transition_type , priv - > transition_duration ) ;
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if ( priv - > hhomogeneous | | priv - > vhomogeneous | | priv - > visible_child = = child_info )
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gtk_widget_queue_resize ( GTK_WIDGET ( stack ) ) ;
}
static void
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stack_remove ( GtkStack * stack ,
GtkWidget * child ,
gboolean in_dispose )
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{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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GtkStackPage * child_info ;
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gboolean was_visible ;
child_info = find_child_info_for_widget ( stack , child ) ;
if ( child_info = = NULL )
return ;
g_signal_handlers_disconnect_by_func ( child ,
stack_child_visibility_notify_cb ,
stack ) ;
was_visible = gtk_widget_get_visible ( child ) ;
if ( priv - > visible_child = = child_info )
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priv - > visible_child = NULL ;
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if ( priv - > last_visible_child = = child_info )
priv - > last_visible_child = NULL ;
gtk_widget_unparent ( child ) ;
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g_clear_object ( & child_info - > widget ) ;
priv - > children = g_list_remove ( priv - > children , child_info ) ;
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g_object_unref ( child_info ) ;
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if ( ! in_dispose & &
( priv - > hhomogeneous | | priv - > vhomogeneous ) & &
was_visible )
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gtk_widget_queue_resize ( GTK_WIDGET ( stack ) ) ;
}
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/**
* gtk_stack_remove :
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* @ stack : a ` GtkStack `
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* @ child : the child to remove
*
* Removes a child widget from @ stack .
*/
void
gtk_stack_remove ( GtkStack * stack ,
GtkWidget * child )
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{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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GList * l ;
guint position ;
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g_return_if_fail ( GTK_IS_STACK ( stack ) ) ;
g_return_if_fail ( GTK_IS_WIDGET ( child ) ) ;
g_return_if_fail ( gtk_widget_get_parent ( child ) = = GTK_WIDGET ( stack ) ) ;
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for ( l = priv - > children , position = 0 ; l ; l = l - > next , position + + )
{
GtkStackPage * page = l - > data ;
if ( page - > widget = = child )
break ;
}
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stack_remove ( stack , child , FALSE ) ;
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if ( priv - > pages )
g_list_model_items_changed ( G_LIST_MODEL ( priv - > pages ) , position , 1 , 0 ) ;
}
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/**
* gtk_stack_get_page :
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* @ stack : a ` GtkStack `
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* @ child : a child of @ stack
*
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* Returns the ` GtkStackPage ` object for @ child .
*
* Returns : ( transfer none ) : the ` GtkStackPage ` for @ child
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*/
GtkStackPage *
gtk_stack_get_page ( GtkStack * stack ,
GtkWidget * child )
{
return find_child_info_for_widget ( stack , child ) ;
}
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/**
* gtk_stack_get_child_by_name :
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* @ stack : a ` GtkStack `
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* @ name : the name of the child to find
*
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* Finds the child with the name given as the argument .
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*
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* Returns % NULL if there is no child with this name .
*
* Returns : ( transfer none ) ( nullable ) : the requested child
* of the ` GtkStack `
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*/
GtkWidget *
gtk_stack_get_child_by_name ( GtkStack * stack ,
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const char * name )
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{
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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GtkStackPage * info ;
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GList * l ;
g_return_val_if_fail ( GTK_IS_STACK ( stack ) , NULL ) ;
g_return_val_if_fail ( name ! = NULL , NULL ) ;
for ( l = priv - > children ; l ! = NULL ; l = l - > next )
{
info = l - > data ;
if ( info - > name & & strcmp ( info - > name , name ) = = 0 )
return info - > widget ;
}
return NULL ;
}
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/**
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* gtk_stack_page_get_child : ( attributes org . gtk . Method . get_property = child )
* @ self : a ` GtkStackPage `
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*
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* Returns the stack child to which @ self belongs .
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*
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* Returns : ( transfer none ) : the child to which @ self belongs
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*/
GtkWidget *
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gtk_stack_page_get_child ( GtkStackPage * self )
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{
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return self - > widget ;
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}
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/**
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* gtk_stack_set_hhomogeneous : ( attributes org . gtk . Method . set_property = hhomogeneous )
* @ stack : a ` GtkStack `
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* @ hhomogeneous : % TRUE to make @ stack horizontally homogeneous
*
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* Sets the ` GtkStack ` to be horizontally homogeneous or not .
*
* If it is homogeneous , the ` GtkStack ` will request the same
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* width for all its children . If it isn ' t , the stack
* may change width when a different child becomes visible .
*/
void
gtk_stack_set_hhomogeneous ( GtkStack * stack ,
gboolean hhomogeneous )
{
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
g_return_if_fail ( GTK_IS_STACK ( stack ) ) ;
hhomogeneous = ! ! hhomogeneous ;
if ( priv - > hhomogeneous = = hhomogeneous )
return ;
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priv - > hhomogeneous = hhomogeneous ;
if ( gtk_widget_get_visible ( GTK_WIDGET ( stack ) ) )
gtk_widget_queue_resize ( GTK_WIDGET ( stack ) ) ;
g_object_notify_by_pspec ( G_OBJECT ( stack ) , stack_props [ PROP_HHOMOGENEOUS ] ) ;
}
/**
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* gtk_stack_get_hhomogeneous : ( attributes org . gtk . Method . get_property = hhomogeneous )
* @ stack : a ` GtkStack `
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*
* Gets whether @ stack is horizontally homogeneous .
*
* Returns : whether @ stack is horizontally homogeneous .
*/
gboolean
gtk_stack_get_hhomogeneous ( GtkStack * stack )
{
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
g_return_val_if_fail ( GTK_IS_STACK ( stack ) , FALSE ) ;
return priv - > hhomogeneous ;
}
/**
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* gtk_stack_set_vhomogeneous : ( attributes org . gtk . Method . set_property = vhomogeneous )
* @ stack : a ` GtkStack `
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* @ vhomogeneous : % TRUE to make @ stack vertically homogeneous
*
* Sets the # GtkStack to be vertically homogeneous or not .
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*
* If it is homogeneous , the ` GtkStack ` will request the same
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* height for all its children . If it isn ' t , the stack
* may change height when a different child becomes visible .
*/
void
gtk_stack_set_vhomogeneous ( GtkStack * stack ,
gboolean vhomogeneous )
{
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
g_return_if_fail ( GTK_IS_STACK ( stack ) ) ;
vhomogeneous = ! ! vhomogeneous ;
if ( priv - > vhomogeneous = = vhomogeneous )
return ;
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priv - > vhomogeneous = vhomogeneous ;
if ( gtk_widget_get_visible ( GTK_WIDGET ( stack ) ) )
gtk_widget_queue_resize ( GTK_WIDGET ( stack ) ) ;
g_object_notify_by_pspec ( G_OBJECT ( stack ) , stack_props [ PROP_VHOMOGENEOUS ] ) ;
}
/**
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* gtk_stack_get_vhomogeneous : ( attributes org . gtk . Method . get_property = vhomogeneous )
* @ stack : a ` GtkStack `
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*
* Gets whether @ stack is vertically homogeneous .
*
* Returns : whether @ stack is vertically homogeneous .
*/
gboolean
gtk_stack_get_vhomogeneous ( GtkStack * stack )
{
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
g_return_val_if_fail ( GTK_IS_STACK ( stack ) , FALSE ) ;
return priv - > vhomogeneous ;
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}
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/**
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* gtk_stack_get_transition_duration : ( attributes org . gtk . Method . get_property = transition - duration )
* @ stack : a ` GtkStack `
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*
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* Returns the amount of time ( in milliseconds ) that
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* transitions between pages in @ stack will take .
*
* Returns : the transition duration
*/
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guint
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gtk_stack_get_transition_duration ( GtkStack * stack )
{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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g_return_val_if_fail ( GTK_IS_STACK ( stack ) , 0 ) ;
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return priv - > transition_duration ;
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}
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/**
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* gtk_stack_set_transition_duration : ( attributes org . gtk . Method . set_property = transition - duration )
* @ stack : a ` GtkStack `
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* @ duration : the new duration , in milliseconds
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*
* Sets the duration that transitions between pages in @ stack
* will take .
*/
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void
gtk_stack_set_transition_duration ( GtkStack * stack ,
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guint duration )
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{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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g_return_if_fail ( GTK_IS_STACK ( stack ) ) ;
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if ( priv - > transition_duration = = duration )
return ;
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priv - > transition_duration = duration ;
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g_object_notify_by_pspec ( G_OBJECT ( stack ) ,
stack_props [ PROP_TRANSITION_DURATION ] ) ;
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}
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/**
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* gtk_stack_get_transition_type : ( attributes org . gtk . Method . get_property = transition - type )
* @ stack : a ` GtkStack `
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*
* Gets the type of animation that will be used
* for transitions between pages in @ stack .
*
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* Returns : the current transition type of @ stack
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*/
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GtkStackTransitionType
gtk_stack_get_transition_type ( GtkStack * stack )
{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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g_return_val_if_fail ( GTK_IS_STACK ( stack ) , GTK_STACK_TRANSITION_TYPE_NONE ) ;
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return priv - > transition_type ;
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}
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/**
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* gtk_stack_set_transition_type : ( attributes org . gtk . Method . set_property = transition - type )
* @ stack : a ` GtkStack `
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* @ transition : the new transition type
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*
* Sets the type of animation that will be used for
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* transitions between pages in @ stack .
*
* Available types include various kinds of fades and slides .
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*
* The transition type can be changed without problems
* at runtime , so it is possible to change the animation
* based on the page that is about to become current .
*/
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void
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gtk_stack_set_transition_type ( GtkStack * stack ,
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GtkStackTransitionType transition )
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{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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g_return_if_fail ( GTK_IS_STACK ( stack ) ) ;
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if ( priv - > transition_type = = transition )
return ;
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priv - > transition_type = transition ;
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g_object_notify_by_pspec ( G_OBJECT ( stack ) ,
stack_props [ PROP_TRANSITION_TYPE ] ) ;
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}
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/**
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* gtk_stack_get_transition_running : ( attributes org . gtk . Method . get_property = transition - running )
* @ stack : a ` GtkStack `
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*
* Returns whether the @ stack is currently in a transition from one page to
* another .
*
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* Returns : % TRUE if the transition is currently running , % FALSE otherwise .
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*/
gboolean
gtk_stack_get_transition_running ( GtkStack * stack )
{
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
g_return_val_if_fail ( GTK_IS_STACK ( stack ) , FALSE ) ;
return ( priv - > tick_id ! = 0 ) ;
}
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/**
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* gtk_stack_set_interpolate_size : ( attributes org . gtk . Method . set_property = interpolate - size )
* @ stack : A ` GtkStack `
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* @ interpolate_size : the new value
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*
* Sets whether or not @ stack will interpolate its size when
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* changing the visible child .
*
* If the [ property @ Gtk . Stack : interpolate - size ] property is set
* to % TRUE , @ stack will interpolate its size between the current
* one and the one it ' ll take after changing the visible child ,
* according to the set transition duration .
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*/
void
gtk_stack_set_interpolate_size ( GtkStack * stack ,
gboolean interpolate_size )
{
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
g_return_if_fail ( GTK_IS_STACK ( stack ) ) ;
interpolate_size = ! ! interpolate_size ;
if ( priv - > interpolate_size = = interpolate_size )
return ;
priv - > interpolate_size = interpolate_size ;
g_object_notify_by_pspec ( G_OBJECT ( stack ) ,
stack_props [ PROP_INTERPOLATE_SIZE ] ) ;
}
/**
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* gtk_stack_get_interpolate_size : ( attributes org . gtk . Method . get_property = interpolate - size )
* @ stack : A ` GtkStack `
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*
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* Returns whether the # GtkStack is set up to interpolate between
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* the sizes of children on page switch .
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*
* Returns : % TRUE if child sizes are interpolated
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*/
gboolean
gtk_stack_get_interpolate_size ( GtkStack * stack )
{
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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g_return_val_if_fail ( GTK_IS_STACK ( stack ) , FALSE ) ;
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return priv - > interpolate_size ;
}
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/**
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* gtk_stack_get_visible_child : ( attributes org . gtk . Method . get_property = visible - child )
* @ stack : a ` GtkStack `
*
* Gets the currently visible child of @ stack .
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*
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* Returns % NULL if there are no visible children .
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*
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* Returns : ( transfer none ) ( nullable ) : the visible child of the ` GtkStack `
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*/
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GtkWidget *
gtk_stack_get_visible_child ( GtkStack * stack )
{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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g_return_val_if_fail ( GTK_IS_STACK ( stack ) , NULL ) ;
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return priv - > visible_child ? priv - > visible_child - > widget : NULL ;
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}
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/**
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* gtk_stack_get_visible_child_name : ( attributes org . gtk . Method . get_property = visible - child - name )
* @ stack : a ` GtkStack `
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*
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* Returns the name of the currently visible child of @ stack .
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*
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* Returns % NULL if there is no visible child .
*
* Returns : ( transfer none ) ( nullable ) : the name of the visible child
* of the ` GtkStack `
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*/
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const char *
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gtk_stack_get_visible_child_name ( GtkStack * stack )
{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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g_return_val_if_fail ( GTK_IS_STACK ( stack ) , NULL ) ;
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if ( priv - > visible_child )
return priv - > visible_child - > name ;
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return NULL ;
}
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/**
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* gtk_stack_set_visible_child : ( attributes org . gtk . Method . set_property = visible - child )
* @ stack : a ` GtkStack `
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* @ child : a child of @ stack
*
* Makes @ child the visible child of @ stack .
*
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* If @ child is different from the currently visible child ,
* the transition between the two will be animated with the
* current transition type of @ stack .
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*
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* Note that the @ child widget has to be visible itself
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* ( see [ method @ Gtk . Widget . show ] ) in order to become the visible
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* child of @ stack .
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*/
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void
gtk_stack_set_visible_child ( GtkStack * stack ,
GtkWidget * child )
{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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GtkStackPage * child_info ;
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g_return_if_fail ( GTK_IS_STACK ( stack ) ) ;
g_return_if_fail ( GTK_IS_WIDGET ( child ) ) ;
child_info = find_child_info_for_widget ( stack , child ) ;
if ( child_info = = NULL )
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{
g_warning ( " Given child of type '%s' not found in GtkStack " ,
G_OBJECT_TYPE_NAME ( child ) ) ;
return ;
}
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if ( gtk_widget_get_visible ( child_info - > widget ) )
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set_visible_child ( stack , child_info ,
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priv - > transition_type ,
priv - > transition_duration ) ;
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}
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/**
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* gtk_stack_set_visible_child_name : ( attributes org . gtk . Method . set_property = visible - child - name )
* @ stack : a ` GtkStack `
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* @ name : the name of the child to make visible
*
* Makes the child with the given name visible .
*
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* If @ child is different from the currently visible child ,
* the transition between the two will be animated with the
* current transition type of @ stack .
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*
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* Note that the child widget has to be visible itself
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* ( see [ method @ Gtk . Widget . show ] ) in order to become the visible
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* child of @ stack .
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*/
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void
gtk_stack_set_visible_child_name ( GtkStack * stack ,
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const char * name )
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{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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g_return_if_fail ( GTK_IS_STACK ( stack ) ) ;
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gtk_stack_set_visible_child_full ( stack , name , priv - > transition_type ) ;
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}
/**
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* gtk_stack_set_visible_child_full :
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* @ stack : a ` GtkStack `
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* @ name : the name of the child to make visible
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* @ transition : the transition type to use
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*
* Makes the child with the given name visible .
*
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* Note that the child widget has to be visible itself
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* ( see [ method @ Gtk . Widget . show ] ) in order to become the visible
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* child of @ stack .
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*/
void
gtk_stack_set_visible_child_full ( GtkStack * stack ,
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const char * name ,
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GtkStackTransitionType transition )
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{
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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GtkStackPage * child_info , * info ;
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GList * l ;
g_return_if_fail ( GTK_IS_STACK ( stack ) ) ;
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if ( name = = NULL )
return ;
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child_info = NULL ;
for ( l = priv - > children ; l ! = NULL ; l = l - > next )
{
info = l - > data ;
if ( info - > name ! = NULL & &
strcmp ( info - > name , name ) = = 0 )
{
child_info = info ;
break ;
}
}
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if ( child_info = = NULL )
{
g_warning ( " Child name '%s' not found in GtkStack " , name ) ;
return ;
}
if ( gtk_widget_get_visible ( child_info - > widget ) )
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set_visible_child ( stack , child_info , transition , priv - > transition_duration ) ;
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}
static void
gtk_stack_compute_expand ( GtkWidget * widget ,
gboolean * hexpand_p ,
gboolean * vexpand_p )
{
GtkStack * stack = GTK_STACK ( widget ) ;
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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gboolean hexpand , vexpand ;
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GtkStackPage * child_info ;
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GtkWidget * child ;
GList * l ;
hexpand = FALSE ;
vexpand = FALSE ;
for ( l = priv - > children ; l ! = NULL ; l = l - > next )
{
child_info = l - > data ;
child = child_info - > widget ;
if ( ! hexpand & &
gtk_widget_compute_expand ( child , GTK_ORIENTATION_HORIZONTAL ) )
hexpand = TRUE ;
if ( ! vexpand & &
gtk_widget_compute_expand ( child , GTK_ORIENTATION_VERTICAL ) )
vexpand = TRUE ;
if ( hexpand & & vexpand )
break ;
}
* hexpand_p = hexpand ;
* vexpand_p = vexpand ;
}
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static GtkSizeRequestMode
gtk_stack_get_request_mode ( GtkWidget * widget )
{
GtkWidget * w ;
int wfh = 0 , hfw = 0 ;
for ( w = gtk_widget_get_first_child ( widget ) ;
w ! = NULL ;
w = gtk_widget_get_next_sibling ( w ) )
{
GtkSizeRequestMode mode = gtk_widget_get_request_mode ( w ) ;
switch ( mode )
{
case GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH :
hfw + + ;
break ;
case GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT :
wfh + + ;
break ;
case GTK_SIZE_REQUEST_CONSTANT_SIZE :
default :
break ;
}
}
if ( hfw = = 0 & & wfh = = 0 )
return GTK_SIZE_REQUEST_CONSTANT_SIZE ;
else
return wfh > hfw ?
GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT :
GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH ;
}
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static void
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gtk_stack_snapshot_crossfade ( GtkWidget * widget ,
GtkSnapshot * snapshot )
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{
GtkStack * stack = GTK_STACK ( widget ) ;
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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double progress = gtk_progress_tracker_get_progress ( & priv - > tracker , FALSE ) ;
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2018-04-24 01:17:23 +00:00
gtk_snapshot_push_cross_fade ( snapshot , progress ) ;
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if ( priv - > last_visible_child )
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{
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gtk_widget_snapshot_child ( widget ,
priv - > last_visible_child - > widget ,
snapshot ) ;
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}
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gtk_snapshot_pop ( snapshot ) ;
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gtk_widget_snapshot_child ( widget ,
priv - > visible_child - > widget ,
snapshot ) ;
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gtk_snapshot_pop ( snapshot ) ;
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}
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static void
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gtk_stack_snapshot_under ( GtkWidget * widget ,
GtkSnapshot * snapshot )
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{
GtkStack * stack = GTK_STACK ( widget ) ;
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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int widget_width , widget_height ;
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int x , y , width , height , pos_x , pos_y ;
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2017-06-28 06:19:35 +00:00
2013-08-31 16:00:47 +00:00
x = y = 0 ;
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width = widget_width = gtk_widget_get_width ( widget ) ;
height = widget_height = gtk_widget_get_height ( widget ) ;
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pos_x = pos_y = 0 ;
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switch ( ( guint ) priv - > active_transition_type )
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{
case GTK_STACK_TRANSITION_TYPE_UNDER_DOWN :
y = 0 ;
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height = widget_height * ( gtk_progress_tracker_get_ease_out_cubic ( & priv - > tracker , FALSE ) ) ;
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pos_y = height ;
break ;
case GTK_STACK_TRANSITION_TYPE_UNDER_UP :
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y = widget_height * ( 1 - gtk_progress_tracker_get_ease_out_cubic ( & priv - > tracker , FALSE ) ) ;
height = widget_height - y ;
pos_y = y - widget_height ;
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break ;
case GTK_STACK_TRANSITION_TYPE_UNDER_LEFT :
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x = widget_width * ( 1 - gtk_progress_tracker_get_ease_out_cubic ( & priv - > tracker , FALSE ) ) ;
width = widget_width - x ;
pos_x = x - widget_width ;
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break ;
case GTK_STACK_TRANSITION_TYPE_UNDER_RIGHT :
x = 0 ;
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width = widget_width * ( gtk_progress_tracker_get_ease_out_cubic ( & priv - > tracker , FALSE ) ) ;
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pos_x = width ;
break ;
default :
g_assert_not_reached ( ) ;
}
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gtk_snapshot_push_clip ( snapshot , & GRAPHENE_RECT_INIT ( x , y , width , height ) ) ;
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gtk_widget_snapshot_child ( widget ,
priv - > visible_child - > widget ,
snapshot ) ;
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gtk_snapshot_pop ( snapshot ) ;
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2020-06-12 19:40:34 +00:00
if ( priv - > last_visible_child )
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{
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gtk_snapshot_save ( snapshot ) ;
gtk_snapshot_translate ( snapshot , & GRAPHENE_POINT_INIT ( pos_x , pos_y ) ) ;
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gtk_widget_snapshot_child ( widget , priv - > last_visible_child - > widget , snapshot ) ;
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gtk_snapshot_restore ( snapshot ) ;
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}
}
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static void
gtk_stack_snapshot_cube ( GtkWidget * widget ,
GtkSnapshot * snapshot )
{
GtkStack * stack = GTK_STACK ( widget ) ;
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
double progress = gtk_progress_tracker_get_progress ( & priv - > tracker , FALSE ) ;
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g_assert ( priv - > active_transition_type = = GTK_STACK_TRANSITION_TYPE_ROTATE_RIGHT | |
priv - > active_transition_type = = GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT ) ;
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if ( priv - > active_transition_type = = GTK_STACK_TRANSITION_TYPE_ROTATE_RIGHT )
progress = 1 - progress ;
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if ( priv - > last_visible_child & & progress > 0.5 )
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{
gtk_snapshot_save ( snapshot ) ;
gtk_snapshot_translate_3d ( snapshot , & GRAPHENE_POINT3D_INIT (
gtk_widget_get_width ( widget ) / 2.f ,
gtk_widget_get_height ( widget ) / 2.f ,
0 ) ) ;
gtk_snapshot_perspective ( snapshot , 2 * gtk_widget_get_width ( widget ) / 1.f ) ;
gtk_snapshot_translate_3d ( snapshot , & GRAPHENE_POINT3D_INIT (
0 , 0 ,
- gtk_widget_get_width ( widget ) / 2.f ) ) ;
gtk_snapshot_rotate_3d ( snapshot , - 90 * progress , graphene_vec3_y_axis ( ) ) ;
gtk_snapshot_translate_3d ( snapshot , & GRAPHENE_POINT3D_INIT (
- gtk_widget_get_width ( widget ) / 2.f ,
- gtk_widget_get_height ( widget ) / 2.f ,
gtk_widget_get_width ( widget ) / 2.f ) ) ;
if ( priv - > active_transition_type = = GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT )
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gtk_widget_snapshot_child ( widget , priv - > last_visible_child - > widget , snapshot ) ;
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else
gtk_widget_snapshot_child ( widget , priv - > visible_child - > widget , snapshot ) ;
gtk_snapshot_restore ( snapshot ) ;
}
gtk_snapshot_save ( snapshot ) ;
gtk_snapshot_translate_3d ( snapshot , & GRAPHENE_POINT3D_INIT (
gtk_widget_get_width ( widget ) / 2.f ,
gtk_widget_get_height ( widget ) / 2.f ,
0 ) ) ;
gtk_snapshot_perspective ( snapshot , 2 * gtk_widget_get_width ( widget ) / 1.f ) ;
gtk_snapshot_translate_3d ( snapshot , & GRAPHENE_POINT3D_INIT (
0 , 0 ,
- gtk_widget_get_width ( widget ) / 2.f ) ) ;
gtk_snapshot_rotate_3d ( snapshot , 90 * ( 1.0 - progress ) , graphene_vec3_y_axis ( ) ) ;
gtk_snapshot_translate_3d ( snapshot , & GRAPHENE_POINT3D_INIT (
- gtk_widget_get_width ( widget ) / 2.f ,
- gtk_widget_get_height ( widget ) / 2.f ,
gtk_widget_get_width ( widget ) / 2.f ) ) ;
if ( priv - > active_transition_type = = GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT )
gtk_widget_snapshot_child ( widget , priv - > visible_child - > widget , snapshot ) ;
else
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gtk_widget_snapshot_child ( widget , priv - > last_visible_child - > widget , snapshot ) ;
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gtk_snapshot_restore ( snapshot ) ;
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if ( priv - > last_visible_child & & progress < = 0.5 )
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{
gtk_snapshot_save ( snapshot ) ;
gtk_snapshot_translate_3d ( snapshot , & GRAPHENE_POINT3D_INIT (
gtk_widget_get_width ( widget ) / 2.f ,
gtk_widget_get_height ( widget ) / 2.f ,
0 ) ) ;
gtk_snapshot_perspective ( snapshot , 2 * gtk_widget_get_width ( widget ) / 1.f ) ;
gtk_snapshot_translate_3d ( snapshot , & GRAPHENE_POINT3D_INIT (
0 , 0 ,
- gtk_widget_get_width ( widget ) / 2.f ) ) ;
gtk_snapshot_rotate_3d ( snapshot , - 90 * progress , graphene_vec3_y_axis ( ) ) ;
gtk_snapshot_translate_3d ( snapshot , & GRAPHENE_POINT3D_INIT (
- gtk_widget_get_width ( widget ) / 2.f ,
- gtk_widget_get_height ( widget ) / 2.f ,
gtk_widget_get_width ( widget ) / 2.f ) ) ;
if ( priv - > active_transition_type = = GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT )
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gtk_widget_snapshot_child ( widget , priv - > last_visible_child - > widget , snapshot ) ;
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else
gtk_widget_snapshot_child ( widget , priv - > visible_child - > widget , snapshot ) ;
gtk_snapshot_restore ( snapshot ) ;
}
}
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static void
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gtk_stack_snapshot_slide ( GtkWidget * widget ,
GtkSnapshot * snapshot )
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{
GtkStack * stack = GTK_STACK ( widget ) ;
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
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2020-06-12 19:40:34 +00:00
if ( priv - > last_visible_child )
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{
int x , y ;
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int width , height ;
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2017-12-06 06:56:12 +00:00
width = gtk_widget_get_width ( widget ) ;
height = gtk_widget_get_height ( widget ) ;
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2017-06-04 15:30:40 +00:00
x = get_bin_window_x ( stack ) ;
y = get_bin_window_y ( stack ) ;
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2017-10-06 19:19:42 +00:00
switch ( ( guint ) priv - > active_transition_type )
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{
case GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT :
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x - = width ;
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break ;
case GTK_STACK_TRANSITION_TYPE_SLIDE_RIGHT :
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x + = width ;
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break ;
case GTK_STACK_TRANSITION_TYPE_SLIDE_UP :
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y - = height ;
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break ;
case GTK_STACK_TRANSITION_TYPE_SLIDE_DOWN :
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y + = height ;
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break ;
case GTK_STACK_TRANSITION_TYPE_OVER_UP :
case GTK_STACK_TRANSITION_TYPE_OVER_DOWN :
y = 0 ;
break ;
case GTK_STACK_TRANSITION_TYPE_OVER_LEFT :
case GTK_STACK_TRANSITION_TYPE_OVER_RIGHT :
x = 0 ;
break ;
default :
g_assert_not_reached ( ) ;
break ;
}
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if ( priv - > last_visible_child ! = NULL )
{
if ( gtk_widget_get_valign ( priv - > last_visible_child - > widget ) = = GTK_ALIGN_END & &
priv - > last_visible_widget_height > height )
y - = priv - > last_visible_widget_height - height ;
else if ( gtk_widget_get_valign ( priv - > last_visible_child - > widget ) = = GTK_ALIGN_CENTER )
y - = ( priv - > last_visible_widget_height - height ) / 2 ;
}
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2019-02-21 04:34:12 +00:00
gtk_snapshot_save ( snapshot ) ;
gtk_snapshot_translate ( snapshot , & GRAPHENE_POINT_INIT ( x , y ) ) ;
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gtk_widget_snapshot_child ( widget , priv - > last_visible_child - > widget , snapshot ) ;
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gtk_snapshot_restore ( snapshot ) ;
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}
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gtk_widget_snapshot_child ( widget ,
priv - > visible_child - > widget ,
snapshot ) ;
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}
2016-12-13 08:45:09 +00:00
static void
gtk_stack_snapshot ( GtkWidget * widget ,
GtkSnapshot * snapshot )
2013-04-21 11:51:14 +00:00
{
GtkStack * stack = GTK_STACK ( widget ) ;
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
2015-12-09 04:03:38 +00:00
2013-06-13 18:50:41 +00:00
if ( priv - > visible_child )
2013-04-21 11:51:14 +00:00
{
2016-03-01 06:24:39 +00:00
if ( gtk_progress_tracker_get_state ( & priv - > tracker ) ! = GTK_PROGRESS_STATE_AFTER )
2013-04-21 11:51:14 +00:00
{
2016-12-13 08:45:09 +00:00
gtk_snapshot_push_clip ( snapshot ,
& GRAPHENE_RECT_INIT (
0 , 0 ,
2017-12-06 06:56:12 +00:00
gtk_widget_get_width ( widget ) ,
gtk_widget_get_height ( widget )
2018-04-24 01:17:23 +00:00
) ) ;
2016-01-21 00:44:47 +00:00
2013-04-21 18:22:35 +00:00
switch ( priv - > active_transition_type )
2013-04-21 11:51:14 +00:00
{
case GTK_STACK_TRANSITION_TYPE_CROSSFADE :
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gtk_stack_snapshot_crossfade ( widget , snapshot ) ;
2013-04-21 11:51:14 +00:00
break ;
case GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT :
case GTK_STACK_TRANSITION_TYPE_SLIDE_RIGHT :
2013-04-22 00:17:40 +00:00
case GTK_STACK_TRANSITION_TYPE_SLIDE_UP :
case GTK_STACK_TRANSITION_TYPE_SLIDE_DOWN :
2013-08-31 16:00:47 +00:00
case GTK_STACK_TRANSITION_TYPE_OVER_UP :
case GTK_STACK_TRANSITION_TYPE_OVER_DOWN :
case GTK_STACK_TRANSITION_TYPE_OVER_LEFT :
case GTK_STACK_TRANSITION_TYPE_OVER_RIGHT :
2016-12-13 08:45:09 +00:00
gtk_stack_snapshot_slide ( widget , snapshot ) ;
2013-04-21 11:51:14 +00:00
break ;
2013-08-31 16:00:47 +00:00
case GTK_STACK_TRANSITION_TYPE_UNDER_UP :
case GTK_STACK_TRANSITION_TYPE_UNDER_DOWN :
case GTK_STACK_TRANSITION_TYPE_UNDER_LEFT :
case GTK_STACK_TRANSITION_TYPE_UNDER_RIGHT :
2020-06-12 19:40:34 +00:00
gtk_stack_snapshot_under ( widget , snapshot ) ;
2013-08-31 16:00:47 +00:00
break ;
2019-03-05 19:44:45 +00:00
case GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT :
case GTK_STACK_TRANSITION_TYPE_ROTATE_RIGHT :
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gtk_stack_snapshot_cube ( widget , snapshot ) ;
2019-03-05 19:44:45 +00:00
break ;
2017-10-06 19:19:42 +00:00
case GTK_STACK_TRANSITION_TYPE_NONE :
case GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT_RIGHT :
case GTK_STACK_TRANSITION_TYPE_SLIDE_UP_DOWN :
case GTK_STACK_TRANSITION_TYPE_OVER_UP_DOWN :
case GTK_STACK_TRANSITION_TYPE_OVER_DOWN_UP :
case GTK_STACK_TRANSITION_TYPE_OVER_LEFT_RIGHT :
case GTK_STACK_TRANSITION_TYPE_OVER_RIGHT_LEFT :
2019-03-05 19:44:45 +00:00
case GTK_STACK_TRANSITION_TYPE_ROTATE_LEFT_RIGHT :
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default :
g_assert_not_reached ( ) ;
}
2017-01-12 23:39:59 +00:00
gtk_snapshot_pop ( snapshot ) ;
2013-04-21 11:51:14 +00:00
}
2016-11-22 18:31:03 +00:00
else
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gtk_widget_snapshot_child ( widget ,
priv - > visible_child - > widget ,
snapshot ) ;
2013-04-21 11:51:14 +00:00
}
}
static void
2018-08-16 04:53:03 +00:00
gtk_stack_size_allocate ( GtkWidget * widget ,
int width ,
int height ,
int baseline )
2013-04-21 11:51:14 +00:00
{
GtkStack * stack = GTK_STACK ( widget ) ;
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GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
2015-12-09 04:03:38 +00:00
GtkAllocation child_allocation ;
2013-04-21 11:51:14 +00:00
if ( priv - > last_visible_child )
2016-03-19 02:27:31 +00:00
{
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int child_width , child_height ;
2016-03-19 02:27:31 +00:00
int min , nat ;
2016-11-12 17:58:18 +00:00
gtk_widget_measure ( priv - > last_visible_child - > widget , GTK_ORIENTATION_HORIZONTAL ,
- 1 ,
& min , & nat , NULL , NULL ) ;
2020-06-12 19:40:34 +00:00
child_width = MAX ( min , width ) ;
2016-11-12 17:58:18 +00:00
gtk_widget_measure ( priv - > last_visible_child - > widget , GTK_ORIENTATION_VERTICAL ,
2020-06-19 03:58:09 +00:00
child_width ,
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& min , & nat , NULL , NULL ) ;
2020-06-12 19:40:34 +00:00
child_height = MAX ( min , height ) ;
2016-10-28 10:51:03 +00:00
2020-06-12 19:40:34 +00:00
gtk_widget_size_allocate ( priv - > last_visible_child - > widget ,
& ( GtkAllocation ) { 0 , 0 , child_width , child_height } , - 1 ) ;
2016-03-19 02:27:31 +00:00
}
2013-04-21 11:51:14 +00:00
2020-06-19 03:58:09 +00:00
child_allocation . x = get_bin_window_x ( stack ) ;
child_allocation . y = get_bin_window_y ( stack ) ;
2018-08-16 04:53:03 +00:00
child_allocation . width = width ;
child_allocation . height = height ;
2016-02-26 20:58:36 +00:00
2013-04-21 11:51:14 +00:00
if ( priv - > visible_child )
2015-05-24 19:27:33 +00:00
{
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int min_width ;
int min_height ;
2015-05-30 13:43:56 +00:00
2016-10-28 10:56:36 +00:00
gtk_widget_measure ( priv - > visible_child - > widget , GTK_ORIENTATION_HORIZONTAL ,
2018-08-16 04:53:03 +00:00
height , & min_width , NULL , NULL , NULL ) ;
2016-10-28 10:56:36 +00:00
child_allocation . width = MAX ( child_allocation . width , min_width ) ;
gtk_widget_measure ( priv - > visible_child - > widget , GTK_ORIENTATION_VERTICAL ,
child_allocation . width , & min_height , NULL , NULL , NULL ) ;
child_allocation . height = MAX ( child_allocation . height , min_height ) ;
2018-08-16 04:53:03 +00:00
if ( child_allocation . width > width )
2015-07-19 15:39:41 +00:00
{
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GtkAlign halign = gtk_widget_get_halign ( priv - > visible_child - > widget ) ;
if ( halign = = GTK_ALIGN_CENTER | | halign = = GTK_ALIGN_FILL )
2018-08-16 04:53:03 +00:00
child_allocation . x = ( width - child_allocation . width ) / 2 ;
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else if ( halign = = GTK_ALIGN_END )
2018-08-16 04:53:03 +00:00
child_allocation . x = ( width - child_allocation . width ) ;
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}
2018-08-16 04:53:03 +00:00
if ( child_allocation . height > height )
2016-10-28 10:56:36 +00:00
{
GtkAlign valign = gtk_widget_get_valign ( priv - > visible_child - > widget ) ;
if ( valign = = GTK_ALIGN_CENTER | | valign = = GTK_ALIGN_FILL )
2018-08-16 04:53:03 +00:00
child_allocation . y = ( height - child_allocation . height ) / 2 ;
2016-10-28 10:56:36 +00:00
else if ( valign = = GTK_ALIGN_END )
2018-08-16 04:53:03 +00:00
child_allocation . y = ( height - child_allocation . height ) ;
2015-07-19 15:39:41 +00:00
}
2016-02-26 20:58:22 +00:00
2018-03-31 19:02:28 +00:00
gtk_widget_size_allocate ( priv - > visible_child - > widget , & child_allocation , - 1 ) ;
2015-05-24 19:27:33 +00:00
}
2013-04-21 11:51:14 +00:00
}
2015-12-09 04:03:38 +00:00
# define LERP(a, b, t) ((a) + (((b) - (a)) * (1.0 - (t))))
2013-04-21 11:51:14 +00:00
static void
2017-05-05 15:18:15 +00:00
gtk_stack_measure ( GtkWidget * widget ,
2015-12-09 04:03:38 +00:00
GtkOrientation orientation ,
int for_size ,
int * minimum ,
int * natural ,
int * minimum_baseline ,
2017-05-05 15:18:15 +00:00
int * natural_baseline )
2015-12-09 04:03:38 +00:00
{
2013-04-21 11:51:14 +00:00
GtkStack * stack = GTK_STACK ( widget ) ;
2013-07-02 11:43:20 +00:00
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
2019-02-06 17:54:18 +00:00
GtkStackPage * child_info ;
2013-04-21 11:51:14 +00:00
GtkWidget * child ;
2020-07-24 13:54:49 +00:00
int child_min , child_nat ;
2013-04-21 11:51:14 +00:00
GList * l ;
2015-12-09 04:03:38 +00:00
* minimum = 0 ;
* natural = 0 ;
2013-04-21 11:51:14 +00:00
for ( l = priv - > children ; l ! = NULL ; l = l - > next )
{
child_info = l - > data ;
child = child_info - > widget ;
2015-12-09 04:03:38 +00:00
if ( ( ( orientation = = GTK_ORIENTATION_VERTICAL & & ! priv - > vhomogeneous ) | |
( orientation = = GTK_ORIENTATION_HORIZONTAL & & ! priv - > hhomogeneous ) ) & &
2015-05-24 19:15:44 +00:00
priv - > visible_child ! = child_info )
2013-04-21 11:51:14 +00:00
continue ;
2015-12-09 04:03:38 +00:00
2013-04-21 11:51:14 +00:00
if ( gtk_widget_get_visible ( child ) )
{
2016-10-27 07:38:45 +00:00
gtk_widget_measure ( child , orientation , for_size , & child_min , & child_nat , NULL , NULL ) ;
2013-04-21 11:51:14 +00:00
2015-12-09 04:03:38 +00:00
* minimum = MAX ( * minimum , child_min ) ;
* natural = MAX ( * natural , child_nat ) ;
2013-04-21 11:51:14 +00:00
}
}
2015-12-09 04:03:38 +00:00
if ( priv - > last_visible_child ! = NULL )
2013-04-21 11:51:14 +00:00
{
2015-12-09 04:03:38 +00:00
if ( orientation = = GTK_ORIENTATION_VERTICAL & & ! priv - > vhomogeneous )
{
2020-07-24 20:32:16 +00:00
double t = priv - > interpolate_size ? gtk_progress_tracker_get_ease_out_cubic ( & priv - > tracker , FALSE ) : 1.0 ;
2015-12-09 04:03:38 +00:00
* minimum = LERP ( * minimum , priv - > last_visible_widget_height , t ) ;
* natural = LERP ( * natural , priv - > last_visible_widget_height , t ) ;
}
if ( orientation = = GTK_ORIENTATION_HORIZONTAL & & ! priv - > hhomogeneous )
{
2020-07-24 20:32:16 +00:00
double t = priv - > interpolate_size ? gtk_progress_tracker_get_ease_out_cubic ( & priv - > tracker , FALSE ) : 1.0 ;
2015-12-09 04:03:38 +00:00
* minimum = LERP ( * minimum , priv - > last_visible_widget_width , t ) ;
* natural = LERP ( * natural , priv - > last_visible_widget_width , t ) ;
}
2013-04-21 11:51:14 +00:00
}
}
static void
2015-12-09 04:03:38 +00:00
gtk_stack_init ( GtkStack * stack )
2013-04-21 11:51:14 +00:00
{
2013-07-02 11:43:20 +00:00
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
2013-04-21 11:51:14 +00:00
2015-12-09 04:03:38 +00:00
priv - > vhomogeneous = TRUE ;
priv - > hhomogeneous = TRUE ;
priv - > transition_duration = 200 ;
priv - > transition_type = GTK_STACK_TRANSITION_TYPE_NONE ;
2013-04-21 11:51:14 +00:00
}
2019-02-10 23:22:54 +00:00
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_get_pages : ( attributes org . gtk . Method . get_property = pages )
* @ stack : a ` GtkStack `
*
* Returns a ` GListModel ` that contains the pages of the stack .
2019-02-10 23:22:54 +00:00
*
2021-02-27 23:23:47 +00:00
* This can be used to keep an up - to - date view . The model also
* implements [ iface @ Gtk . SelectionModel ] and can be used to track
* and modify the visible page .
2019-02-10 23:22:54 +00:00
*
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* Returns : ( transfer full ) : a ` GtkSelectionModel ` for the stack ' s children
2019-02-10 23:22:54 +00:00
*/
GtkSelectionModel *
gtk_stack_get_pages ( GtkStack * stack )
{
GtkStackPrivate * priv = gtk_stack_get_instance_private ( stack ) ;
g_return_val_if_fail ( GTK_IS_STACK ( stack ) , NULL ) ;
if ( priv - > pages )
return g_object_ref ( priv - > pages ) ;
priv - > pages = GTK_SELECTION_MODEL ( gtk_stack_pages_new ( stack ) ) ;
g_object_add_weak_pointer ( G_OBJECT ( priv - > pages ) , ( gpointer * ) & priv - > pages ) ;
return priv - > pages ;
}
2020-02-18 08:27:42 +00:00
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_page_get_visible : ( attributes org . gtk . Method . get_property = visible )
* @ self : a ` GtkStackPage `
2020-02-18 08:27:42 +00:00
*
2021-02-27 23:23:47 +00:00
* Returns whether @ page is visible in its ` GtkStack ` .
*
* This is independent from the [ property @ Gtk . Widget : visible ]
* property of its widget .
2020-06-28 12:06:17 +00:00
*
* Returns : % TRUE if @ page is visible
2020-02-18 08:27:42 +00:00
*/
gboolean
2020-06-18 05:55:22 +00:00
gtk_stack_page_get_visible ( GtkStackPage * self )
2020-02-18 08:27:42 +00:00
{
2020-06-18 05:55:22 +00:00
g_return_val_if_fail ( GTK_IS_STACK_PAGE ( self ) , FALSE ) ;
2020-02-18 08:27:42 +00:00
2020-06-18 05:55:22 +00:00
return self - > visible ;
2020-02-18 08:27:42 +00:00
}
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_page_set_visible : ( attributes org . gtk . Method . set_property = visible )
* @ self : a ` GtkStackPage `
2020-02-18 08:27:42 +00:00
* @ visible : The new property value
*
2021-02-27 23:23:47 +00:00
* Sets whether @ page is visible in its ` GtkStack ` .
2020-02-18 08:27:42 +00:00
*/
void
2020-06-18 05:55:22 +00:00
gtk_stack_page_set_visible ( GtkStackPage * self ,
2020-02-18 08:27:42 +00:00
gboolean visible )
{
2020-06-18 05:55:22 +00:00
g_return_if_fail ( GTK_IS_STACK_PAGE ( self ) ) ;
2020-02-18 08:27:42 +00:00
visible = ! ! visible ;
2020-06-18 05:55:22 +00:00
if ( visible = = self - > visible )
return ;
self - > visible = visible ;
2020-07-07 03:05:37 +00:00
if ( self - > widget & & gtk_widget_get_parent ( self - > widget ) )
update_child_visible ( GTK_STACK ( gtk_widget_get_parent ( self - > widget ) ) , self ) ;
2020-06-18 05:55:22 +00:00
g_object_notify_by_pspec ( G_OBJECT ( self ) , stack_page_props [ CHILD_PROP_VISIBLE ] ) ;
}
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_page_get_needs_attention : ( attributes org . gtk . Method . get_property = needs - attention )
* @ self : a ` GtkStackPage `
2020-06-18 05:55:22 +00:00
*
2021-02-27 23:23:47 +00:00
* Returns whether the page is marked as “ needs attention ” .
2020-06-18 05:55:22 +00:00
*
2021-02-27 23:23:47 +00:00
* Returns : The value of the [ property @ Gtk . StackPage : needs - attention ]
* property .
2020-06-18 05:55:22 +00:00
*/
gboolean
gtk_stack_page_get_needs_attention ( GtkStackPage * self )
{
return self - > needs_attention ;
}
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_page_set_needs_attention : ( attributes org . gtk . Method . set_property = needs - attention )
* @ self : a ` GtkStackPage `
2020-06-18 05:55:22 +00:00
* @ setting : the new value to set
*
2021-02-27 23:23:47 +00:00
* Sets whether the page is marked as “ needs attention ” .
2020-06-18 05:55:22 +00:00
*/
void
gtk_stack_page_set_needs_attention ( GtkStackPage * self ,
gboolean setting )
{
setting = ! ! setting ;
if ( setting = = self - > needs_attention )
return ;
self - > needs_attention = setting ;
g_object_notify_by_pspec ( G_OBJECT ( self ) , stack_page_props [ CHILD_PROP_NEEDS_ATTENTION ] ) ;
}
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_page_get_use_underline : ( attributes org . gtk . Method . get_property = use - underline )
* @ self : a ` GtkStackPage `
2020-06-18 05:55:22 +00:00
*
2021-02-27 23:23:47 +00:00
* Gets whether underlines in the page title indicate mnemonics .
2020-06-18 05:55:22 +00:00
*
2021-02-27 23:23:47 +00:00
* Returns : The value of the [ property @ Gtk . StackPage : use - underline ] property
2020-06-18 05:55:22 +00:00
*/
gboolean
gtk_stack_page_get_use_underline ( GtkStackPage * self )
{
return self - > use_underline ;
}
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_page_set_use_underline : ( attributes org . gtk . Method . set_property = use - underline )
* @ self : a ` GtkStackPage `
2020-06-18 05:55:22 +00:00
* @ setting : the new value to set
*
2021-02-27 23:23:47 +00:00
* Sets whether underlines in the page title indicate mnemonics .
2020-06-18 05:55:22 +00:00
*/
void
gtk_stack_page_set_use_underline ( GtkStackPage * self ,
gboolean setting )
{
setting = ! ! setting ;
if ( setting = = self - > use_underline )
return ;
self - > use_underline = setting ;
g_object_notify_by_pspec ( G_OBJECT ( self ) , stack_page_props [ CHILD_PROP_USE_UNDERLINE ] ) ;
}
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_page_get_name : ( attributes org . gtk . Method . get_property = name )
* @ self : a ` GtkStackPage `
2020-06-18 05:55:22 +00:00
*
2021-02-27 23:23:47 +00:00
* Returns the name of the page .
2020-06-18 05:55:22 +00:00
*
2021-02-27 23:23:47 +00:00
* Returns : ( nullable ) : The value of the [ property @ Gtk . StackPage : name ] property
2020-06-18 05:55:22 +00:00
*/
const char *
gtk_stack_page_get_name ( GtkStackPage * self )
{
g_return_val_if_fail ( GTK_IS_STACK_PAGE ( self ) , NULL ) ;
return self - > name ;
}
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_page_set_name : ( attributes org . gtk . Method . set_property = name )
* @ self : a ` GtkStackPage `
2020-06-18 05:55:22 +00:00
* @ setting : ( transfer none ) : the new value to set
*
2021-02-27 23:23:47 +00:00
* Sets the name of the page .
2020-06-18 05:55:22 +00:00
*/
void
gtk_stack_page_set_name ( GtkStackPage * self ,
const char * setting )
{
GtkStack * stack = NULL ;
GtkStackPrivate * priv = NULL ;
g_return_if_fail ( GTK_IS_STACK_PAGE ( self ) ) ;
if ( self - > widget & &
gtk_widget_get_parent ( self - > widget ) & &
GTK_IS_STACK ( gtk_widget_get_parent ( self - > widget ) ) )
2020-02-18 08:27:42 +00:00
{
2020-06-18 05:55:22 +00:00
GList * l ;
2020-02-18 08:27:42 +00:00
2020-06-18 05:55:22 +00:00
stack = GTK_STACK ( gtk_widget_get_parent ( self - > widget ) ) ;
priv = gtk_stack_get_instance_private ( stack ) ;
for ( l = priv - > children ; l ! = NULL ; l = l - > next )
{
GtkStackPage * info2 = l - > data ;
if ( self = = info2 )
continue ;
if ( g_strcmp0 ( info2 - > name , setting ) = = 0 )
{
g_warning ( " Duplicate child name in GtkStack: %s " , setting ) ;
break ;
}
}
2020-02-18 08:27:42 +00:00
}
2020-06-18 05:55:22 +00:00
if ( setting = = self - > name )
return ;
g_free ( self - > name ) ;
self - > name = g_strdup ( setting ) ;
g_object_notify_by_pspec ( G_OBJECT ( self ) , stack_page_props [ CHILD_PROP_NAME ] ) ;
if ( priv & & priv - > visible_child = = self )
g_object_notify_by_pspec ( G_OBJECT ( stack ) ,
stack_props [ PROP_VISIBLE_CHILD_NAME ] ) ;
}
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_page_get_title : ( attributes org . gtk . Method . get_property = title )
* @ self : a ` GtkStackPage `
2020-06-18 05:55:22 +00:00
*
2021-02-27 23:23:47 +00:00
* Gets the page title .
2020-06-18 05:55:22 +00:00
*
2021-02-27 23:23:47 +00:00
* Returns : ( nullable ) : The value of the [ property @ Gtk . StackPage : title ] property
2020-06-18 05:55:22 +00:00
*/
const char *
gtk_stack_page_get_title ( GtkStackPage * self )
{
g_return_val_if_fail ( GTK_IS_STACK_PAGE ( self ) , NULL ) ;
return self - > title ;
}
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_page_set_title : ( attributes org . gtk . Method . set_property = title )
* @ self : a ` GtkStackPage `
2020-06-18 05:55:22 +00:00
* @ setting : ( transfer none ) : the new value to set
*
2021-02-27 23:23:47 +00:00
* Sets the page title .
2020-06-18 05:55:22 +00:00
*/
void
gtk_stack_page_set_title ( GtkStackPage * self ,
const char * setting )
{
g_return_if_fail ( GTK_IS_STACK_PAGE ( self ) ) ;
if ( setting = = self - > title )
return ;
g_free ( self - > title ) ;
self - > title = g_strdup ( setting ) ;
g_object_notify_by_pspec ( G_OBJECT ( self ) , stack_page_props [ CHILD_PROP_TITLE ] ) ;
2020-11-12 14:50:49 +00:00
gtk_accessible_update_property ( GTK_ACCESSIBLE ( self ) ,
GTK_ACCESSIBLE_PROPERTY_LABEL , self - > title ,
- 1 ) ;
2020-06-18 05:55:22 +00:00
}
/**
2021-02-27 23:23:47 +00:00
* gtk_stack_page_get_icon_name : ( attributes org . gtk . Method . get_property = icon - name )
* @ self : a ` GtkStackPage `
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*
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* Returns the icon name of the page .
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*
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* Returns : ( nullable ) : The value of the [ property @ Gtk . StackPage : icon - name ] property
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*/
const char *
gtk_stack_page_get_icon_name ( GtkStackPage * self )
{
g_return_val_if_fail ( GTK_IS_STACK_PAGE ( self ) , NULL ) ;
return self - > icon_name ;
}
/**
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* gtk_stack_page_set_icon_name : ( attributes org . gtk . Method . set_property = icon - name )
* @ self : a ` GtkStackPage `
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* @ setting : ( transfer none ) : the new value to set
*
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* Sets the icon name of the page .
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*/
void
gtk_stack_page_set_icon_name ( GtkStackPage * self ,
const char * setting )
{
g_return_if_fail ( GTK_IS_STACK_PAGE ( self ) ) ;
if ( setting = = self - > icon_name )
return ;
g_free ( self - > icon_name ) ;
self - > icon_name = g_strdup ( setting ) ;
g_object_notify_by_pspec ( G_OBJECT ( self ) , stack_page_props [ CHILD_PROP_ICON_NAME ] ) ;
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}