wdealign.c

开放源码的编译器open watcom 1.6.0版的源代码

/****************************************************************************
*
*                            Open Watcom Project
*
*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
*
*  ========================================================================
*
*    This file contains Original Code and/or Modifications of Original
*    Code as defined in and that are subject to the Sybase Open Watcom
*    Public License version 1.0 (the 'License'). You may not use this file
*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
*    provided with the Original Code and Modifications, and is also
*    available at www.sybase.com/developer/opensource.
*
*    The Original Code and all software distributed under the License are
*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
*    NON-INFRINGEMENT. Please see the License for the specific language
*    governing rights and limitations under the License.
*
*  ========================================================================
*
* Description:  WHEN YOU FIGURE OUT WHAT THIS FILE DOES, PLEASE
*               DESCRIBE IT HERE!
*
****************************************************************************/


#include <windows.h>
#include <string.h>

#include "wdeglbl.h"
#include "wdemain.h"
#include "wdestat.h"
#include "wdemsgbx.h"
#include "wdemsgs.gh"
#include "wdedebug.h"
#include "wdecurr.h"
#include "wdealign.h"

/****************************************************************************/
/* static function prototypes                                               */
/****************************************************************************/
static Bool WdeCheckResizeOperation   ( OBJPTR, LIST **, RESIZE_ID );
static Bool WdeCheckAlignControl      ( LIST **, OBJPTR * );
static Bool WdeAlignControl           ( WdeAlignValue, OBJPTR, RECT * );

Bool WdeAlignControls ( WdeAlignValue aval )
{
    LIST    *objlist;
    LIST    *olist;
    OBJPTR   obj;
    OBJPTR   parent;
    RECT     prect;
    RECT     nc_size;
    Bool     ret;

    if ( !aval || !WdeCheckAlignControl ( &objlist, &parent ) ) {
        return ( FALSE );
    }

    if ( !objlist || !parent ) {
        WdeWriteTrail ( "WdeAlignControls: NULL value!");
        ListFree ( objlist );
        return ( FALSE );
    }

    Location ( parent, &prect );

    if ( !Forward ( parent, GET_NC_SIZE, &nc_size, NULL ) ) {
        WdeWriteTrail ( "WdeAlignControls: GET_NC_SIZE failed!");
        ListFree ( objlist );
        return ( FALSE );
    }

    prect.top    += nc_size.top;
    prect.left   += nc_size.left;
    prect.right  -= nc_size.right;
    prect.bottom -= nc_size.bottom;

    ret = TRUE;

    HideSelectBoxes ();

    for ( olist = objlist; olist; olist = ListNext ( olist ) ) {
        obj = ListElement ( olist );
        if ( !WdeAlignControl ( aval, obj, &prect ) ) {
            WdeWriteTrail ( "WdeAlignControls: WdeAlignControl failed!");
            ret = FALSE;
            break;
        }
    }

    ShowSelectBoxes ();

    return ( ret );
}

Bool WdeAlignControl ( WdeAlignValue aval, OBJPTR obj, RECT *prect )
{
    RECT rect;

    if ( !aval || !obj || !prect ) {
        return ( FALSE );
    }

    Location ( obj, &rect );

    return ( TRUE );
}

Bool WdeSameSize ( RESIZE_ID  resize_id )
{
    LIST    *objlist;
    LIST    *olist;
    OBJPTR   currobj;
    OBJPTR   primary;
    RECT     primrect;
    RECT     rect;

    if ( !( resize_id & (RESIZE_ID) ( R_RIGHT | R_BOTTOM ) ) ) {
        WdeWriteTrail ( "WdeSameSize: Bad resize_id!");
        return ( FALSE );
    }

    primary = WdeGetCurrObject();

    if ( !WdeCheckResizeOperation ( primary, &objlist, resize_id ) ) {
        return ( FALSE );
    }

    if ( !objlist || ( ListCount ( objlist ) < 2 ) ) {
        WdeWriteTrail ( "WdeSameSize: Need at least two objects!");
        ListFree ( objlist );
        return ( FALSE );
    }

    Location ( primary, &primrect );

    HideSelectBoxes ();

    for ( olist = objlist; olist; olist = ListNext ( olist ) ) {
        currobj = ListElement ( olist );
        if( currobj != primary ) {
            Location( currobj, &rect );
            if ( resize_id & R_BOTTOM ) {
                rect.bottom = rect.top + ( primrect.bottom - primrect.top);
            }
            if ( resize_id & R_RIGHT ) {
                rect.right = rect.left + ( primrect.right - primrect.left);
            }
            if ( !Resize( currobj, &rect, TRUE ) ) {
                WdeWriteTrail ( "WdeSameSize: Resize failed!");
            }
        }
    }

    ShowSelectBoxes ();

    ListFree ( objlist );

    return ( TRUE );
}

Bool WdeGetBoundingRectFromSelect ( RECT *r )
{
    LIST *objlist;
    Bool  ret;

    if ( !r ) {
        return ( FALSE );
    }

    objlist = WdeGetCurrObjectList();

    if ( !objlist ) {
        return ( FALSE );
    }

    ret = WdeGetBoundingRectFromList ( objlist, r );

    ListFree ( objlist );

    return ( ret );
}

Bool WdeGetBoundingRectFromList ( LIST *objlist, RECT *r )
{
    LIST      *clist;
    OBJPTR     obj;
    RECT       r1;
    RECT       r2;

    if ( !r ) {
        return ( FALSE );
    }

    SetRectEmpty ( r );

    for( clist = objlist; clist; clist = ListNext( clist ) ) {
        obj = ListElement( clist );
        if ( obj ) {
            Location( obj, &r1 );
            UnionRect ( &r2, &r1, r );
            *r = r2;
        }
    }

    return ( TRUE );
}

Bool WdeCheckResizeOperation ( OBJPTR primary, LIST **objlist, RESIZE_ID id )
{
    LIST      *clist;
    OBJPTR     obj;
    RECT       rect;
    POINT      pt;
    RESIZE_ID  obj_resize_id;
    Bool       ret;

    if ( !objlist || !primary ) {
        return ( FALSE );
    }

    ret = TRUE;

    *objlist = WdeGetCurrObjectList();

    for( clist = *objlist; ret && clist; clist = ListNext( clist ) ) {
        obj = ListElement( clist );
        if ( obj != primary ) {
            Location( obj, &rect );
            pt.x = rect.left;
            pt.y = rect.top;
            if( !GetResizeInfo ( obj, &obj_resize_id ) ) {
                WdeWriteTrail( "WdeCheckResizeOperation: "
                               "GetResizeInfo failed!");
                WdeSetStatusByID( -1, WDE_OBJECTCANTBESIZED );
                ret = FALSE;
            } else if ( !(obj_resize_id & id) ) {
                WdeWriteTrail( "WdeCheckResizeOperation: "
                               "One of the objects can't be sized");
                WdeSetStatusByID( -1, WDE_OBJECTCANTBESIZED );
                ret = FALSE;
            }
        }
    }

    if ( !ret && ( *objlist != NULL ) ) {
        ListFree( *objlist );
        *objlist = NULL;
    }

    return ( ret );
}

Bool WdeCheckAlignControl( LIST **objlist, OBJPTR *p )
{
    LIST      *clist;
    OBJPTR     obj;
    OBJPTR     obj_parent;
    RECT       rect;
    POINT      pt;
    Bool       ret;

    if ( !objlist || !p ) {
        return ( FALSE );
    }

    ret      = TRUE;
    *objlist = WdeGetCurrObjectList();
    *p       = NULL;

    for( clist = *objlist; ret && clist; clist = ListNext( clist ) ) {
        obj = ListElement( clist );
        GetObjectParent ( obj, &obj_parent );
        if ( *p ) {
            if ( obj_parent != *p ) {
                WdeSetStatusByID( -1, WDE_ALLMUSTHAVESAMEPARENT );
                ret = FALSE;
                break;
            }
        } else {
            if ( obj_parent == GetMainObject() ) {
                ret = FALSE;
                break;
            } else {
                *p = obj_parent;
            }
        }
        Location( obj, &rect );
        pt.x = rect.left;
        pt.y = rect.top;
        if( !ValidateAction ( obj, MOVE, &pt ) ) {
            WdeWriteTrail ("WdeCheckResizeOperation: ValidateAction failed!");
            WdeSetStatusByID( -1, WDE_OBJECTCANTBEMOVED );
            ret = FALSE;
        }
    }

    if ( !ret && *objlist ) {
        ListFree( *objlist );
        *objlist = NULL;
    }

    return ( ret );
}