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/* Imagepresent widget stuff.
*/
/*
Copyright (C) 1991-2001 The Natoinal Gallery
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU 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 General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#define TYPE_IMAGEPRESENT (imagepresent_get_type())
#define IMAGEPRESENT( obj ) \
(G_TYPE_CHECK_INSTANCE_CAST( (obj), TYPE_IMAGEPRESENT, Imagepresent ))
#define IMAGEPRESENT_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_CAST( (klass), \
TYPE_IMAGEPRESENT, ImagepresentClass))
#define IS_IMAGEPRESENT( obj ) \
(G_TYPE_CHECK_INSTANCE_TYPE( (obj), TYPE_IMAGEPRESENT ))
#define IS_IMAGEPRESENT_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_TYPE( (klass), TYPE_IMAGEPRESENT ))
#define IMAGEPRESENT_GET_CLASS( obj ) \
(G_TYPE_INSTANCE_GET_CLASS( (obj), \
TYPE_IMAGEPRESENT, ImagepresentClass ))
/* Track an image view canvas in one of these.
*/
struct _Imagepresent {
GtkBin parent_object;
/* Context.
*/
Imagemodel *imagemodel; /* Keep model parts of widgets here */
/* Sub-widgets.
*/
Imagedisplay *id; /* Image we display */
GtkScrolledWindow *swin;
GtkAdjustment *hadj;
GtkAdjustment *vadj;
GtkHRuler *hrule; /* Rulers */
GtkVRuler *vrule;
GtkEventBox *heb; /* EventBoxes holding rulers */
GtkEventBox *veb;
iWindowCursorContext *cntxt;
GtkWidget *ruler_menu;
/* Panning stuff.
*/
guint dx, dy; /* Drag start position */
/* Last known mouse position, mouse in window.
*/
int last_x, last_y;
gboolean inside;
/* Background scroll stuff.
*/
guint scroll_tid;
int u, v;
/* Rubberbanding.
*/
Regionview *regionview; /* region rubberband display */
Rect floating; /* rubberband area */
/* Painting stuff.
*/
int paint_last_x;
int paint_last_y;
/* Regionviews drawing on us. Used for snap-to-guide stuff.
*/
GSList *regionviews;
/* The regionview that's currently grabbed ... maintained for us by
* regionview.c ... see regionview_attach()/_detach()
*/
Regionview *grabbed;
};
/* Class structure.
*/
typedef struct _ImagepresentClass {
/* Our parent.
*/
GtkBinClass parent_class;
} ImagepresentClass;
gboolean imagepresent_snap_point( Imagepresent *ip,
int x, int y, int *sx, int *sy );
gboolean imagepresent_snap_rect( Imagepresent *ip, Rect *in, Rect *out );
void imagepresent_paint_recalc( Imagepresent *ip );
GType imagepresent_get_type( void );
Imagepresent *imagepresent_new( Imagemodel *imagemodel );
void imagepresent_set_position( Imagepresent *ip, int x, int w );
void imagepresent_set_mag_pos( Imagepresent *ip, int mag, int ix, int iy );
void imagepresent_zoom_to( Imagepresent *ip, int mag );
void imagepresent_scroll_start( Imagepresent *ip, int u, int v );
void imagepresent_scroll_stop( Imagepresent *ip );
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