ev-view-accessible.h File Reference

#include <gtk/gtk-a11y.h>
#include "ev-document-model.h"

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Data Structures
struct	_EvViewAccessible
struct	_EvViewAccessibleClass

Macros
#define	EV_TYPE_VIEW_ACCESSIBLE   (ev_view_accessible_get_type ())
#define	EV_VIEW_ACCESSIBLE(obj)   (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_VIEW_ACCESSIBLE, EvViewAccessible))
#define	EV_IS_VIEW_ACCESSIBLE(obj)   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_VIEW_ACCESSIBLE))

Typedefs
typedef struct _EvViewAccessible	EvViewAccessible
typedef struct _EvViewAccessibleClass	EvViewAccessibleClass
typedef struct _EvViewAccessiblePrivate	EvViewAccessiblePrivate

Functions
GType	ev_view_accessible_get_type (void)
AtkObject *	ev_view_accessible_new (GtkWidget *widget)
void	ev_view_accessible_set_model (EvViewAccessible *accessible, EvDocumentModel *model)
gint	ev_view_accessible_get_n_pages (EvViewAccessible *accessible)
gint	ev_view_accessible_get_relevant_page (EvViewAccessible *accessible)
void	ev_view_accessible_set_page_range (EvViewAccessible *accessible, gint start, gint end)
void	_transform_doc_rect_to_atk_rect (EvViewAccessible *accessible, gint page, EvRectangle *doc_rect, EvRectangle *atk_rect, AtkCoordType coord_type)
gboolean	ev_view_accessible_is_doc_rect_showing (EvViewAccessible *accessible, gint page, EvRectangle *doc_rect)
void	ev_view_accessible_set_focused_element (EvViewAccessible *accessible, EvMapping *new_focus, gint new_focus_page)
void	ev_view_accessible_update_element_state (EvViewAccessible *accessible, EvMapping *element, gint element_page)

Macro Definition Documentation

#define EV_IS_VIEW_ACCESSIBLE

(

obj)

(G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_VIEW_ACCESSIBLE))

Definition at line 33 of file ev-view-accessible.h.

#define EV_TYPE_VIEW_ACCESSIBLE   (ev_view_accessible_get_type ())

Definition at line 31 of file ev-view-accessible.h.

#define EV_VIEW_ACCESSIBLE

(

obj)

(G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_VIEW_ACCESSIBLE, EvViewAccessible))

Definition at line 32 of file ev-view-accessible.h.

Typedef Documentation

typedef struct _EvViewAccessible EvViewAccessible

Definition at line 35 of file ev-view-accessible.h.

typedef struct _EvViewAccessibleClass EvViewAccessibleClass

Definition at line 36 of file ev-view-accessible.h.

typedef struct _EvViewAccessiblePrivate EvViewAccessiblePrivate

Definition at line 37 of file ev-view-accessible.h.

Function Documentation

void _transform_doc_rect_to_atk_rect	(	EvViewAccessible *	accessible,
		gint	page,
		EvRectangle *	doc_rect,
		EvRectangle *	atk_rect,
		AtkCoordType	coord_type
	)

Definition at line 517 of file ev-view-accessible.c.

{
    EvView *view;
    GdkRectangle view_rect;
    GtkWidget *widget, *toplevel;
    gint x_widget, y_widget;

    view = EV_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible)));
    _ev_view_transform_doc_rect_to_view_rect (view, page, doc_rect, &view_rect);
    view_rect.x -= view->scroll_x;
    view_rect.y -= view->scroll_y;

    widget = GTK_WIDGET (view);
    toplevel = gtk_widget_get_toplevel (widget);
    gtk_widget_translate_coordinates (widget, toplevel, 0, 0, &x_widget, &y_widget);
    view_rect.x += x_widget;
    view_rect.y += y_widget;

    if (coord_type == ATK_XY_SCREEN) {
        gint x_window, y_window;
        gdk_window_get_origin (gtk_widget_get_window (toplevel), &x_window, &y_window);
        view_rect.x += x_window;
        view_rect.y += y_window;
    }

    atk_rect->x1 = view_rect.x;
    atk_rect->y1 = view_rect.y;
    atk_rect->x2 = view_rect.x + view_rect.width;
    atk_rect->y2 = view_rect.y + view_rect.height;
}

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gint ev_view_accessible_get_n_pages

(

EvViewAccessible *

accessible)

Definition at line 134 of file ev-view-accessible.c.

{
    return self->priv->children == NULL ? 0 : self->priv->children->len;
}

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gint ev_view_accessible_get_relevant_page

(

EvViewAccessible *

accessible)

Definition at line 505 of file ev-view-accessible.c.

{
    EvView *view;

    g_return_val_if_fail (EV_IS_VIEW_ACCESSIBLE (accessible), -1);

    view = EV_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible)));

    return get_relevant_page (view);
}

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GType ev_view_accessible_get_type

(

void

)

gboolean ev_view_accessible_is_doc_rect_showing	(	EvViewAccessible *	accessible,
		gint	page,
		EvRectangle *	doc_rect
	)

Definition at line 553 of file ev-view-accessible.c.

{
    EvView *view;
    GdkRectangle view_rect;
    GtkAllocation allocation;
    gint x, y;
    gboolean hidden;

    view = EV_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible)));
    if (page < view->start_page || page > view->end_page)
        return FALSE;

    gtk_widget_get_allocation (GTK_WIDGET (view), &allocation);
    x = gtk_adjustment_get_value (view->hadjustment);
    y = gtk_adjustment_get_value (view->vadjustment);

    _ev_view_transform_doc_rect_to_view_rect (view, page, doc_rect, &view_rect);
    hidden = view_rect.x + view_rect.width < x || view_rect.x > x + allocation.width ||
        view_rect.y + view_rect.height < y || view_rect.y > y + allocation.height;

    return !hidden;
}

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AtkObject* ev_view_accessible_new

(

GtkWidget *

widget)

Definition at line 473 of file ev-view-accessible.c.

{
    AtkObject *accessible;
    EvView    *view;

    g_return_val_if_fail (EV_IS_VIEW (widget), NULL);

    accessible = g_object_new (EV_TYPE_VIEW_ACCESSIBLE, NULL);
    atk_object_initialize (accessible, widget);

    g_signal_connect (widget, "cursor-moved",
              G_CALLBACK (ev_view_accessible_cursor_moved),
              accessible);
    g_signal_connect (widget, "selection-changed",
              G_CALLBACK (ev_view_accessible_selection_changed),
              accessible);
    g_signal_connect (widget, "focus-in-event",
              G_CALLBACK (ev_view_accessible_focus_changed),
              accessible);
    g_signal_connect (widget, "focus-out-event",
              G_CALLBACK (ev_view_accessible_focus_changed),
              accessible);

    view = EV_VIEW (widget);
    if (view->model)
        ev_view_accessible_set_model (EV_VIEW_ACCESSIBLE (accessible),
                          view->model);

    return accessible;
}

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void ev_view_accessible_set_focused_element	(	EvViewAccessible *	accessible,
		EvMapping *	new_focus,
		gint	new_focus_page
	)

Definition at line 607 of file ev-view-accessible.c.

{
    EvPageAccessible *page;

    if (accessible->priv->focused_element) {
        atk_object_notify_state_change (accessible->priv->focused_element, ATK_STATE_FOCUSED, FALSE);
        accessible->priv->focused_element = NULL;
    }

    if (!new_focus || new_focus_page == -1)
        return;

    page = g_ptr_array_index (accessible->priv->children, new_focus_page);
    accessible->priv->focused_element = ev_page_accessible_get_accessible_for_mapping (page, new_focus);
    if (accessible->priv->focused_element)
        atk_object_notify_state_change (accessible->priv->focused_element, ATK_STATE_FOCUSED, TRUE);
}

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void ev_view_accessible_set_model	(	EvViewAccessible *	accessible,
		EvDocumentModel *	model
	)

Definition at line 427 of file ev-view-accessible.c.

{
    EvViewAccessiblePrivate* priv = accessible->priv;

    if (priv->model == model)
        return;

    if (priv->model) {
        g_signal_handlers_disconnect_by_data (priv->model, accessible);
        g_object_unref (priv->model);
    }

    priv->model = g_object_ref (model);

    document_changed_cb (model, NULL, accessible);
    g_signal_connect (priv->model, "page-changed",
              G_CALLBACK (page_changed_cb),
              accessible);
    g_signal_connect (priv->model, "notify::document",
              G_CALLBACK (document_changed_cb),
              accessible);
}

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void ev_view_accessible_set_page_range	(	EvViewAccessible *	accessible,
		gint	start,
		gint	end
	)

Definition at line 579 of file ev-view-accessible.c.

{
    gint i;
    AtkObject *page;

    g_return_if_fail (EV_IS_VIEW_ACCESSIBLE (accessible));

    for (i = accessible->priv->start_page; i <= accessible->priv->end_page; i++) {
        if (i < start || i > end) {
            page = g_ptr_array_index (accessible->priv->children, i);
            atk_object_notify_state_change (page, ATK_STATE_SHOWING, FALSE);
        }
    }

    for (i = start; i <= end; i++) {
        if (i < accessible->priv->start_page || i > accessible->priv->end_page) {
            page = g_ptr_array_index (accessible->priv->children, i);
            atk_object_notify_state_change (page, ATK_STATE_SHOWING, TRUE);
        }
    }

    accessible->priv->start_page = start;
    accessible->priv->end_page = end;
}

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void ev_view_accessible_update_element_state	(	EvViewAccessible *	accessible,
		EvMapping *	element,
		gint	element_page
	)

Definition at line 628 of file ev-view-accessible.c.

{
    EvPageAccessible *page;

    page = g_ptr_array_index (accessible->priv->children, element_page);
    ev_page_accessible_update_element_state (page, element);
}

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