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Viewing changes to panels/display/scrollarea.h

Tags: upstream-3.0.1.1
Import upstream version 3.0.1.1

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panels/display/scrollarea.h
 
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/* Copyright 2006, 2007, 2008, Soren Sandmann <sandmann@daimi.au.dk>
 
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 *
 
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 * This library is free software; you can redistribute it and/or
 
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 * modify it under the terms of the GNU Lesser General Public
 
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 * License as published by the Free Software Foundation; either
 
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 * version 2 of the License, or (at your option) any later version.
 
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 *
 
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 * This library is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 
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 * Lesser General Public License for more details.
 
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 *
 
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 * You should have received a copy of the GNU Lesser General Public
 
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 * License along with this library; if not, write to the
 
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 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 
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 * Boston, MA 02111-1307, USA.
 
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 */
 
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#include <cairo.h>
 
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#include <gtk/gtk.h>
 
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#define FOO_TYPE_SCROLL_AREA            (foo_scroll_area_get_type ())
 
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#define FOO_SCROLL_AREA(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), FOO_TYPE_SCROLL_AREA, FooScrollArea))
 
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#define FOO_SCROLL_AREA_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass),  FOO_TYPE_SCROLL_AREA, FooScrollAreaClass))
 
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#define FOO_IS_SCROLL_AREA(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), FOO_TYPE_SCROLL_AREA))
 
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#define FOO_IS_SCROLL_AREA_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),  FOO_TYPE_SCROLL_AREA))
 
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#define FOO_SCROLL_AREA_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),  FOO_TYPE_SCROLL_AREA, FooScrollAreaClass))
 
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typedef struct FooScrollArea FooScrollArea;
 
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typedef struct FooScrollAreaClass FooScrollAreaClass;
 
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typedef struct FooScrollAreaPrivate FooScrollAreaPrivate;
 
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typedef struct FooScrollAreaEvent FooScrollAreaEvent;
 
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typedef enum
 
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  {
 
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    FOO_BUTTON_PRESS,
 
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    FOO_BUTTON_RELEASE,
 
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    FOO_DRAG_HOVER,
 
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    FOO_DROP,
 
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    FOO_MOTION
 
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  } FooScrollAreaEventType;
 
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struct FooScrollAreaEvent
 
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{
 
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  FooScrollAreaEventType      type;
 
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  int                         x;
 
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  int                         y;
 
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};
 
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typedef void (* FooScrollAreaEventFunc) (FooScrollArea      *area,
 
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                                         FooScrollAreaEvent *event,
 
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                                         gpointer            data);
 
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struct FooScrollArea
 
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{
 
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  GtkContainer parent_instance;
 
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  FooScrollAreaPrivate *priv;
 
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};
 
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struct FooScrollAreaClass
 
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{
 
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  GtkContainerClass parent_class;
 
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  void (*set_scroll_adjustments) (FooScrollArea *scroll_area,
 
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                                  GtkAdjustment *hadjustment,
 
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                                  GtkAdjustment *vadjustment);
 
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  void (*viewport_changed) (FooScrollArea *scroll_area,
 
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                            GdkRectangle  *old_viewport,
 
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                            GdkRectangle  *new_viewport);
 
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  void (*paint) (FooScrollArea  *scroll_area,
 
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                 cairo_t        *cr,
 
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                 GdkRectangle   *extents,
 
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                 cairo_region_t *region);
 
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};
 
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GType foo_scroll_area_get_type (void);
 
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FooScrollArea *foo_scroll_area_new (void);
 
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/* Set the requisition for the widget. */
 
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void          foo_scroll_area_set_min_size (FooScrollArea *scroll_area,
 
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                                            int            min_width,
 
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                                            int            min_height);
 
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/* Set how much of the canvas can be scrolled into view */
 
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void          foo_scroll_area_set_size (FooScrollArea          *scroll_area,
 
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                                        int                     width,
 
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                                        int                     height);
 
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void          foo_scroll_area_set_size_fixed_y (FooScrollArea  *scroll_area,
 
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                                                int             width,
 
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                                                int             height,
 
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                                                int             old_y,
 
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                                                int             new_y);
 
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void          foo_scroll_area_set_viewport_pos (FooScrollArea  *scroll_area,
 
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                                                int             x,
 
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                                                int             y);
 
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void          foo_scroll_area_get_viewport (FooScrollArea *scroll_area,
 
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                                            GdkRectangle  *viewport);
 
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void          foo_scroll_area_add_input_from_stroke (FooScrollArea           *scroll_area,
 
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                                                     cairo_t                    *cr,
 
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                                                     FooScrollAreaEventFunc   func,
 
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                                                     gpointer                 data);
 
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void          foo_scroll_area_add_input_from_fill (FooScrollArea *scroll_area,
 
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                                                   cairo_t         *cr,
 
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                                                   FooScrollAreaEventFunc func,
 
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                                                   gpointer       data);
 
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void          foo_scroll_area_invalidate_region (FooScrollArea  *area,
 
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                                                 cairo_region_t *region);
 
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void          foo_scroll_area_invalidate (FooScrollArea *scroll_area);
 
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void          foo_scroll_area_invalidate_rect (FooScrollArea *scroll_area,
 
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                                               int            x,
 
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                                               int            y,
 
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                                               int            width,
 
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                                               int            height);
 
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void foo_scroll_area_begin_grab (FooScrollArea *scroll_area,
 
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                                 FooScrollAreaEventFunc func,
 
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                                 gpointer       input_data);
 
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void foo_scroll_area_end_grab (FooScrollArea *scroll_area,
 
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                               FooScrollAreaEvent *event);
 
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gboolean foo_scroll_area_is_grabbed (FooScrollArea *scroll_area);
 
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void foo_scroll_area_begin_auto_scroll (FooScrollArea *scroll_area);
 
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void foo_scroll_area_auto_scroll (FooScrollArea *scroll_area,
 
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                                  FooScrollAreaEvent *event);
 
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void foo_scroll_area_end_auto_scroll (FooScrollArea *scroll_area);