127 lines
5.9 KiB
C
127 lines
5.9 KiB
C
/* 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);
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