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# include "config.h"
# include "appGeo.h"
void docInitRectangle( DocumentRectangle * dr )
{ dr->drX0= dr->drY0= dr->drX1= dr->drY1= 0; return; }
void docUnionRectangle( DocumentRectangle * dr,
const DocumentRectangle * dr1,
const DocumentRectangle * dr2 )
{
if ( dr1->drX0 < dr2->drX0 )
{ dr->drX0= dr1->drX0; }
else{ dr->drX0= dr2->drX0; }
if ( dr1->drY0 < dr2->drY0 )
{ dr->drY0= dr1->drY0; }
else{ dr->drY0= dr2->drY0; }
if ( dr1->drX1 < dr2->drX1 )
{ dr->drX1= dr2->drX1; }
else{ dr->drX1= dr1->drX1; }
if ( dr1->drY1 < dr2->drY1 )
{ dr->drY1= dr2->drY1; }
else{ dr->drY1= dr1->drY1; }
}
int docIntersectRectangle( DocumentRectangle * dr,
const DocumentRectangle * dr1,
const DocumentRectangle * dr2 )
{
DocumentRectangle res= *dr1;
if ( dr1->drX1 < dr2->drX0 )
{ return 0; }
if ( dr2->drX1 < dr1->drX0 )
{ return 0; }
if ( dr1->drY1 < dr2->drY0 )
{ return 0; }
if ( dr2->drY1 < dr1->drY0 )
{ return 0; }
if ( dr1->drX0 < dr2->drX0 )
{ res.drX0= dr2->drX0; }
else{ res.drX0= dr1->drX0; }
if ( dr1->drY0 < dr2->drY0 )
{ res.drY0= dr2->drY0; }
else{ res.drY0= dr1->drY0; }
if ( dr1->drX1 < dr2->drX1 )
{ res.drX1= dr1->drX1; }
else{ res.drX1= dr2->drX1; }
if ( dr1->drY1 < dr2->drY1 )
{ res.drY1= dr1->drY1; }
else{ res.drY1= dr2->drY1; }
*dr= res; return 1;
}
void appInitDocumentGeometry( DocumentGeometry * dg )
{
dg->dgPaperWideTwips= 12240;
dg->dgPaperHighTwips= 15840;
dg->dgLeftMarginTwips= 1800;
dg->dgTopMarginTwips= 1440;
dg->dgRightMarginTwips= 1800;
dg->dgBottomMarginTwips= 1440;
}
/************************************************************************/
/* */
/* Copy a document Geometry. Because of the approximative character of */
/* unit conversions in the conversion back and forth between string */
/* and number, a certain inaccuracy is used to decide whether values */
/* changed or not. */
/* */
/************************************************************************/
static void appGeoSetNumber( int * pTarget,
int value,
int * pChanged )
{
int d= *pTarget- value;
int g;
if ( *pTarget == value )
{ return; }
if ( *pTarget > 200 )
{
g= *pTarget/200;
if ( d <= g && d >= -g )
{ return; }
}
else{
if ( value > 200 )
{
g= value/200;
if ( d <= g && d >= -g )
{ return; }
}
}
*pTarget= value; *pChanged= 1;
}
void appSetDocumentGeometry( DocumentGeometry * dgTo,
const DocumentGeometry * dgFrom,
int * pChanged )
{
int changed= 0;
appGeoSetNumber( &dgTo->dgPaperWideTwips,
dgFrom->dgPaperWideTwips, &changed );
appGeoSetNumber( &dgTo->dgPaperHighTwips,
dgFrom->dgPaperHighTwips, &changed );
appGeoSetNumber( &dgTo->dgLeftMarginTwips,
dgFrom->dgLeftMarginTwips, &changed );
appGeoSetNumber( &dgTo->dgTopMarginTwips,
dgFrom->dgTopMarginTwips, &changed );
appGeoSetNumber( &dgTo->dgRightMarginTwips,
dgFrom->dgRightMarginTwips, &changed );
appGeoSetNumber( &dgTo->dgBottomMarginTwips,
dgFrom->dgBottomMarginTwips, &changed );
*pChanged= changed;
return;
}
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