cropcube.h

#ifndef __CROPCUBE_H__
#define __CROPCUBE_H__
/*=============================================================================   
     Module  : cropcube.h
     Purpose : Define routines for painting the crop cube.
     Author  : Doug Ehlenberger, CNIC Mt. Sinai School of Medicine
               
==============================================================================*/
#include "viasgui.h"
#include "paint.h"
#include "vectori.h"


typedef enum
   {
   vCROP_DIR_NE,
   vCROP_DIR_SW,
   vCROP_DIR_NW,
   vCROP_DIR_SE,
   vCROP_DIR_N,
   vCROP_DIR_S,
   vCROP_DIR_W,
   vCROP_DIR_E,
   vNO_CROP_DIR
   }
   vCROP_DIR_TYPE;


typedef struct tagCropCubeControl
   {
   vCOORD x;
   vCOORD y;
   }
   CropCubeControl;


#define vNUM_CROP_CONTROLS  4


typedef struct tagCropCube
   {
   HDC              hDC;
   RECT             client;
   RECT             workspace;
   RECT             bounds;
   HPEN             hDashPen;
   HPEN             hSolidPen;
   vINT             offset;
   vCROP_DIR_TYPE   direction;
   vVWS_VIEW_TYPE   viewType;
   CropCubeControl  controls[ vNUM_CROP_CONTROLS ];
   }
   CropCube;

#define vCROP_CUBE_COLOR            ( ( COLORREF )0x00808080 )

#define vCROP_CUBE_DASH_LENGTH      2
#define vCROP_CUBE_SPACE_LENGTH     2

#define vCROP_CUBE_CTRL_WIDTH       5
#define vCROP_CUBE_CTRL_HEIGHT      vCROP_CUBE_CTRL_WIDTH

#define vCROP_CUBE_MIN_WIDTH        6
#define vCROP_CUBE_MIN_HEIGHT       vCROP_CUBE_MIN_WIDTH

/* Amount to offset the border lines to give the apperance 
   of the dashes "moving". */

#define vCROP_CUBE_MAX_OFFSET      12

/* Amount of pixels from center of a "control" square,
   ( where user can click and drag to alter the crop cube size )
   from which the cursor will change shape to indicate the control
   can be selected. */

#define vCROP_CUBE_TOLERANCE        vCROP_CUBE_CTRL_WIDTH


vVOID CreateCropCube( CropCube *cc, HDC hDC );
vVOID DestroyCropCube( CropCube *cc );

vVOID DrawCropCube( CropCube *cc ); /* Draws the crop cube. */
vVOID AnimateCropCube( CropCube *cc ); /* Increments the offset. */
vVOID EraseCropCube( CropCube *cc ); /* Erases the crop cube. */


//vVOID PaintOverCropCube( CropCube *cc );


/* Based on the direction, get the approprtiate cursor. */

HCURSOR GetCropCubeCursor( CropCube *cc );

/* Given the client coordiantes of the mouse cursor, see which "control square"
   the mouse is over. Returns vNO_CROP_DIR if none. */

vCROP_DIR_TYPE GetCropCubeDirection( CropCube *cc, vCOORD x, vCOORD y );

/* Given the CLIENT coordiantes of the mouse cursor, see if it lies
   within the crop cube. */

vBOOL PointInCropCubeRect( CropCube *cc, vCOORD x, vCOORD y );

/* Based on the direction type and offset in WORKSPACE coordinates, 
   change the dimensions of the crop cube. */

vVOID ResizeCropCube( CropCube *cc, Vector2i offset );

/* The offset is in WORKSPACE coordinates. */

vVOID TranslateCropCube( CropCube *cc, Vector2i offset );

/* If zoom changes or workspace moves while crop cube is activated, 
   then need to reset its CLIENT coordinates. */

vVOID ResetCropCubeClientRect( CropCube *cc );

/* Pass the isp structure obtained by calling GetImageStackProjection().
   See workspace.h */

vVOID InitCropCubeRectangles( CropCube *cc, ImageStackProjection *isp, vVWS_VIEW_TYPE viewType );


/* Added these functions, 4/15/03 */

vSIZE GetCropCubeMaxWidth( const CropCube *const cc );
vSIZE GetCropCubeMaxHeight( const CropCube *const cc );

/* These left, top, right, and bottom coordinates are relative to
   the upper left corner of the image and use "client" type axis'. */

vLONG GetCropCubeLeft( const CropCube *const cc );
void SetCropCubeLeft( CropCube *const cc, const vLONG left );

vLONG GetCropCubeTop( const CropCube *const cc );
void SetCropCubeTop( CropCube *const cc, const vLONG top );

vLONG GetCropCubeRight( const CropCube *const cc );
void SetCropCubeRight( CropCube *const cc, const vLONG right );

vLONG GetCropCubeBottom( const CropCube *const cc );
void SetCropCubeBottom( CropCube *const cc, const vLONG bottom );


#endif/* __CROPCUBE_H__ */

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