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mpmmap.c
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C/C++ Source or Header
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1988-10-03
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6KB
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199 lines
/*-----------------------------------------------------------------*/
/* MpmMap.c */
/* Coordinate mapping functions */
/*-----------------------------------------------------------------*/
#include "MacPM.h"
/*-----------------------------------------------------------------*/
/* Map a list of PM window points from hwndFrom's coordinates to */
/* hwndTo's coordinates. cwpt is the number of points. */
/*-----------------------------------------------------------------*/
BOOL APIENTRY WinMapWindowPoints( hwndFrom, hwndTo, paptl, cwpt )
HWND hwndFrom, hwndTo;
PPOINTL paptl;
SHORT cwpt;
{
POINTL ptlFrom, ptlTo;
PMYWND pwnd;
/* Fix up special case window handles */
if( ! hwndFrom || hwndFrom == HWND_DESKTOP )
hwndFrom = _hwndDesktop;
if( ! hwndTo || hwndTo == HWND_DESKTOP )
hwndTo = _hwndDesktop;
if( ! MpmValidateWindow(hwndFrom) ||
! MpmValidateWindow(hwndTo) )
return FALSE;
/* Get absolute positions for both windows */
pwnd = PMYWNDOF(hwndFrom);
ptlFrom.x = pwnd->x;
ptlFrom.y = pwnd->y;
MpmMapAbsOfWin( pwnd->hwndParent, &ptlFrom, 1 );
pwnd = PMYWNDOF(hwndTo);
ptlTo.x = pwnd->x;
ptlTo.y = pwnd->y;
MpmMapAbsOfWin( pwnd->hwndParent, &ptlTo, 1 );
/* Adjust the points */
for( ; cwpt > 0; paptl++, cwpt-- )
{
paptl->x += ptlFrom.x - ptlTo.x;
paptl->y += ptlFrom.y - ptlTo.y;
}
return TRUE;
}
/*-----------------------------------------------------------------*/
/* Map a list of points from hwnd's coordinates to absolute */
/* coordinates. */
/*-----------------------------------------------------------------*/
LOCAL VOID MpmMapAbsOfWin( hwnd, pptl, cwpt )
HWND hwnd;
PPOINTL pptl;
SHORT cwpt;
{
POINTL ptlAdj;
ptlAdj.x = ptlAdj.y = 0;
for( ; hwnd; hwnd = MYWNDOF(hwnd).hwndParent )
{
ptlAdj.x += MYWNDOF(hwnd).x;
ptlAdj.y += MYWNDOF(hwnd).y;
}
for( ; cwpt > 0; cwpt--, pptl++ )
{
pptl->x += ptlAdj.x;
pptl->y += ptlAdj.y;
}
}
/*-----------------------------------------------------------------*/
/* Map a PM POINTL to a Mac Point, using hwnd's coordinates. */
/*-----------------------------------------------------------------*/
LOCAL VOID MpmMapMacOfPtl( hwnd, ppoint, pptl )
HWND hwnd;
Point* ppoint;
PPOINTL pptl;
{
RECTL rclMain;
HWND hwndMain;
Rect* prectAdj;
POINTL ptl;
ptl = *pptl;
hwndMain = MAINHWND(hwnd);
prectAdj = &MYWNDOF(hwndMain).rectAdj;
WinQueryWindowRect( hwndMain, &rclMain );
WinMapWindowPoints( hwnd, hwndMain, &ptl, 1 );
ppoint->h = ptl.x - prectAdj->left;
ppoint->v = rclMain.yTop - ptl.y - prectAdj->top;
}
/*-----------------------------------------------------------------*/
/* Map a PM RECTL to a Mac Rect, using hwnd's coordinates. */
/*-----------------------------------------------------------------*/
LOCAL VOID MpmMapMacOfRcl( hwnd, prect, prcl )
HWND hwnd;
Rect* prect;
PRECTL prcl;
{
RECTL rclMain;
HWND hwndMain;
Rect* prectAdj;
RECTL rcl;
rcl = *prcl;
hwndMain = MAINHWND(hwnd);
prectAdj = &MYWNDOF(hwndMain).rectAdj;
WinQueryWindowRect( hwndMain, &rclMain );
WinMapWindowRect( hwnd, hwndMain, &rcl );
prect->left = rcl.xLeft - prectAdj->left;
prect->right = rcl.xRight - prectAdj->left;
prect->top = rclMain.yTop - rcl.yTop - prectAdj->top;
prect->bottom = rclMain.yTop - rcl.yBottom - prectAdj->top;
}
/*-----------------------------------------------------------------*/
/* Map a Mac Point to a PM POINTL, using hwnd's coordinates. */
/*-----------------------------------------------------------------*/
LOCAL VOID MpmMapPtlOfMac( hwnd, pptl, ppoint )
HWND hwnd;
PPOINTL pptl;
Point* ppoint;
{
Rect rect;
MpmQueryMacRect( hwnd, &rect );
pptl->x = ppoint->h - rect.left;
pptl->y = rect.bottom - ppoint->v;
}
/*-----------------------------------------------------------------*/
/* Map a Mac Rect to a PM RECTL, using hwnd's coordinates. */
/*-----------------------------------------------------------------*/
LOCAL VOID MpmMapRclOfMac( hwnd, prcl, prect )
HWND hwnd;
PRECTL prcl;
Rect* prect;
{
Rect rect;
MpmQueryMacRect( hwnd, &rect );
prcl->xLeft = prect->left - rect.left;
prcl->xRight = prect->right - rect.left;
prcl->yBottom = rect.bottom - prect->bottom;
prcl->yTop = rect.bottom - prect->top;
}
/*-----------------------------------------------------------------*/
/* Map a list of PM window points from absolute coordinates to */
/* hwnd's coordinates. */
/*-----------------------------------------------------------------*/
LOCAL VOID MpmMapWinOfAbs( hwnd, pptl, cwpt )
HWND hwnd;
PPOINTL pptl;
SHORT cwpt;
{
POINTL ptlAdj;
ptlAdj.x = ptlAdj.y = 0;
for( ; hwnd; hwnd = MYWNDOF(hwnd).hwndParent )
{
ptlAdj.x -= MYWNDOF(hwnd).x;
ptlAdj.y -= MYWNDOF(hwnd).y;
}
for( ; cwpt > 0; cwpt--, pptl++ )
{
pptl->x += ptlAdj.x;
pptl->y += ptlAdj.y;
}
}
/*-----------------------------------------------------------------*/