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/*
 * $Xorg: PannerP.h,v 1.4 2001/02/09 02:03:45 xorgcvs Exp $
 *
Copyright 1989, 1998 The Open Group

Permission to use, copy, modify, distribute, and sell this software and its
documentation for any purpose is hereby granted without fee, provided that
the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of The Open Group shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from The Open Group.
 *
 * Author:  Jim Fulton, MIT X Consortium
 */
/* $XFree86: xc/lib/Xaw/PannerP.h,v 1.7 2001/01/17 19:42:29 dawes Exp $ */

#ifndef _XawPannerP_h
#define _XawPannerP_h

#include <X11/Xaw/Panner.h>
#include <X11/Xaw/SimpleP.h>

/* new fields in widget class */
typedef struct {
    XtPointer extension;
} PannerClassPart;

/* Panner widget class */
typedef struct _PannerClassRec {
    CoreClassPart core_class;
    SimpleClassPart simple_class;
    PannerClassPart panner_class;
} PannerClassRec;

/* new fields in widget */
typedef struct {
    /* resources */
    XtCallbackList report_callbacks;	/* callback/Callback */
    Boolean allow_off;			/* allowOff/AllowOff */
    Boolean resize_to_pref;		/* resizeToPreferred/Boolean */
    Pixel foreground;			/* foreground/Foreground */
    Pixel shadow_color;			/* shadowColor/ShadowColor */
    Dimension shadow_thickness;		/* shadowThickness/ShadowThickness */
    Dimension default_scale;		/* defaultScale/DefaultScale */
    Dimension line_width;		/* lineWidth/LineWidth */
    Dimension canvas_width;		/* canvasWidth/CanvasWidth */
    Dimension canvas_height;		/* canvasHeight/CanvasHeight */
    Position slider_x;			/* sliderX/SliderX */
    Position slider_y;			/* sliderY/SliderY */
    Dimension slider_width;		/* sliderWidth/SliderWidth */
    Dimension slider_height;		/* sliderHeight/SliderHeight */
    Dimension internal_border;		/* internalBorderWidth/BorderWidth */
    String stipple_name;		/* backgroundStipple/BackgroundStipple
					 */
    /* private */
    GC slider_gc;			/* background of slider */
    GC shadow_gc;			/* edge of slider and shadow */
    GC xor_gc;				/* for doing XOR tmp graphics */
    double haspect, vaspect;		/* aspect ratio of core to canvas */
    Boolean rubber_band;		/* true = rubber band, false = move */
    struct {
	Boolean doing;			/* tmp graphics in progress */
	Boolean showing;		/* true if tmp graphics displayed */
	Position startx, starty;	/* initial position of slider */
	Position dx, dy;		/* offset loc for tmp graphics */
	Position x, y;			/* location for tmp graphics */
    } tmp;
    Position knob_x, knob_y;		/* real upper left of knob in canvas */
    Dimension knob_width, knob_height;	/* real size of knob in canvas */
    Boolean shadow_valid;		/* true if rects are valid */
    XRectangle shadow_rects[2];		/* location of shadows */
    Position last_x, last_y;		/* previous location of knob */
#ifndef OLDXAW
    XtPointer pad[4];	/* for future use and keep binary compatability */
#endif
} PannerPart;

typedef struct _PannerRec {
    CorePart core;
    SimplePart simple;
    PannerPart panner;
} PannerRec;

#define PANNER_HSCALE(pw,val)	((pw)->panner.haspect * ((double)(val)))
#define PANNER_VSCALE(pw,val)	((pw)->panner.vaspect * ((double)(val)))

#define PANNER_DSCALE(pw,val) (Dimension)  \
((((unsigned long)(val)) * (unsigned long)pw->panner.default_scale) / 100L)

#define PANNER_DEFAULT_SCALE	8		/* percent */
#define PANNER_OUTOFRANGE -30000

extern PannerClassRec pannerClassRec;

#endif /* _XawPannerP_h */