409 lines
11 KiB
C
409 lines
11 KiB
C
/*
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* GDI mapping mode functions
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*
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* Copyright 1993 Alexandre Julliard
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*/
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static char Copyright[] = "Copyright Alexandre Julliard, 1993";
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#include "gdi.h"
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/***********************************************************************
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* MAPPING_FixIsotropic
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*
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* Fix viewport extensions for isotropic mode.
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*/
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void MAPPING_FixIsotropic( DC * dc )
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{
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double xdim = (double)dc->w.VportExtX * dc->w.devCaps->horzSize /
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(dc->w.devCaps->horzRes * dc->w.WndExtX);
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double ydim = (double)dc->w.VportExtY * dc->w.devCaps->vertSize /
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(dc->w.devCaps->vertRes * dc->w.WndExtY);
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if (xdim > ydim)
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{
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dc->w.VportExtX = dc->w.VportExtX * ydim / xdim;
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if (!dc->w.VportExtX) dc->w.VportExtX = 1;
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}
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else
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{
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dc->w.VportExtY = dc->w.VportExtY * xdim / ydim;
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if (!dc->w.VportExtY) dc->w.VportExtY = 1;
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}
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}
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/***********************************************************************
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* DPtoLP (GDI.67)
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*/
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BOOL DPtoLP( HDC hdc, LPPOINT points, int count )
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{
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POINT * pt;
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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for (pt = points; count > 0; pt++, count--)
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{
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pt->x = XDPTOLP( dc, pt->x );
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pt->y = YDPTOLP( dc, pt->y );
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}
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return TRUE;
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}
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/***********************************************************************
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* LPtoDP (GDI.99)
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*/
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BOOL LPtoDP( HDC hdc, LPPOINT points, int count )
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{
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POINT * pt;
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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for (pt = points; count > 0; pt++, count--)
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{
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pt->x = XLPTODP( dc, pt->x );
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pt->y = YLPTODP( dc, pt->y );
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}
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return TRUE;
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}
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/***********************************************************************
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* SetMapMode (GDI.3)
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*/
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WORD SetMapMode( HDC hdc, WORD mode )
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{
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WORD prevMode;
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return 0;
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#ifdef DEBUG_GDI
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printf( "SetMapMode: %d %d\n", hdc, mode );
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#endif
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prevMode = dc->w.MapMode;
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switch(mode)
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{
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case MM_TEXT:
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dc->w.WndOrgX = dc->w.WndOrgY = 0;
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dc->w.VportOrgX = dc->w.VportOrgY = 0;
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dc->w.WndExtX = 1;
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dc->w.WndExtY = 1;
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dc->w.VportExtX = 1;
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dc->w.VportExtY = 1;
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break;
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case MM_LOMETRIC:
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case MM_ISOTROPIC:
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dc->w.WndOrgX = dc->w.WndOrgY = 0;
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dc->w.VportOrgX = dc->w.VportOrgY = 0;
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dc->w.WndExtX = dc->w.devCaps->horzSize;
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dc->w.WndExtY = dc->w.devCaps->vertSize;
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dc->w.VportExtX = dc->w.devCaps->horzRes / 10;
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dc->w.VportExtY = dc->w.devCaps->vertRes / -10;
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break;
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case MM_HIMETRIC:
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dc->w.WndOrgX = dc->w.WndOrgY = 0;
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dc->w.VportOrgX = dc->w.VportOrgY = 0;
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dc->w.WndExtX = dc->w.devCaps->horzSize * 10;
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dc->w.WndExtY = dc->w.devCaps->vertSize * 10;
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dc->w.VportExtX = dc->w.devCaps->horzRes / 10;
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dc->w.VportExtY = dc->w.devCaps->vertRes / -10;
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break;
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case MM_LOENGLISH:
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dc->w.WndOrgX = dc->w.WndOrgY = 0;
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dc->w.VportOrgX = dc->w.VportOrgY = 0;
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dc->w.WndExtX = dc->w.devCaps->horzSize;
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dc->w.WndExtY = dc->w.devCaps->vertSize;
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dc->w.VportExtX = (short)(254L * dc->w.devCaps->horzRes / 1000);
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dc->w.VportExtY = (short)(-254L * dc->w.devCaps->vertRes / 1000);
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break;
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case MM_HIENGLISH:
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dc->w.WndOrgX = dc->w.WndOrgY = 0;
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dc->w.VportOrgX = dc->w.VportOrgY = 0;
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dc->w.WndExtX = dc->w.devCaps->horzSize * 10;
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dc->w.WndExtY = dc->w.devCaps->vertSize * 10;
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dc->w.VportExtX = (short)(254L * dc->w.devCaps->horzRes / 1000);
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dc->w.VportExtY = (short)(-254L * dc->w.devCaps->vertRes / 1000);
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break;
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case MM_TWIPS:
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dc->w.WndOrgX = dc->w.WndOrgY = 0;
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dc->w.VportOrgX = dc->w.VportOrgY = 0;
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dc->w.WndExtX = (short)(144L * dc->w.devCaps->horzSize / 10);
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dc->w.WndExtY = (short)(144L * dc->w.devCaps->vertSize / 10);
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dc->w.VportExtX = (short)(254L * dc->w.devCaps->horzRes / 1000);
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dc->w.VportExtY = (short)(-254L * dc->w.devCaps->vertRes / 1000);
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break;
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case MM_ANISOTROPIC:
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break;
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default:
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return prevMode;
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}
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dc->w.MapMode = mode;
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return prevMode;
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}
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/***********************************************************************
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* SetViewportExt (GDI.14)
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*/
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DWORD SetViewportExt( HDC hdc, short x, short y )
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{
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SIZE size;
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if (!SetViewportExtEx( hdc, x, y, &size )) return 0;
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return size.cx | (size.cy << 16);
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}
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/***********************************************************************
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* SetViewportExtEx (GDI.479)
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*/
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BOOL SetViewportExtEx( HDC hdc, short x, short y, LPSIZE size )
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{
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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if (size)
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{
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size->cx = dc->w.VportExtX;
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size->cy = dc->w.VportExtY;
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}
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if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
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return TRUE;
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if (!x || !y) return FALSE;
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dc->w.VportExtX = x;
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dc->w.VportExtY = y;
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if (dc->w.MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
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return TRUE;
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}
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/***********************************************************************
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* SetViewportOrg (GDI.13)
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*/
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DWORD SetViewportOrg( HDC hdc, short x, short y )
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{
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POINT pt;
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if (!SetViewportOrgEx( hdc, x, y, &pt )) return 0;
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return pt.x | (pt.y << 16);
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}
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/***********************************************************************
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* SetViewportOrgEx (GDI.480)
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*/
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BOOL SetViewportOrgEx( HDC hdc, short x, short y, LPPOINT pt )
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{
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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if (pt)
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{
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pt->x = dc->w.VportOrgX;
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pt->y = dc->w.VportOrgY;
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}
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dc->w.VportOrgX = x;
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dc->w.VportOrgY = y;
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return TRUE;
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}
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/***********************************************************************
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* SetWindowExt (GDI.12)
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*/
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DWORD SetWindowExt( HDC hdc, short x, short y )
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{
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SIZE size;
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if (!SetWindowExtEx( hdc, x, y, &size )) return 0;
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return size.cx | (size.cy << 16);
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}
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/***********************************************************************
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* SetWindowExtEx (GDI.481)
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*/
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BOOL SetWindowExtEx( HDC hdc, short x, short y, LPSIZE size )
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{
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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if (size)
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{
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size->cx = dc->w.WndExtX;
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size->cy = dc->w.WndExtY;
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}
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if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
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return TRUE;
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if (!x || !y) return FALSE;
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dc->w.WndExtX = x;
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dc->w.WndExtY = y;
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if (dc->w.MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
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return TRUE;
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}
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/***********************************************************************
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* SetWindowOrg (GDI.11)
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*/
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DWORD SetWindowOrg( HDC hdc, short x, short y )
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{
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POINT pt;
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if (!SetWindowOrgEx( hdc, x, y, &pt )) return 0;
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return pt.x | (pt.y << 16);
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}
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/***********************************************************************
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* SetWindowOrgEx (GDI.482)
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*/
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BOOL SetWindowOrgEx( HDC hdc, short x, short y, LPPOINT pt )
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{
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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if (pt)
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{
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pt->x = dc->w.WndOrgX;
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pt->y = dc->w.WndOrgY;
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}
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dc->w.WndOrgX = x;
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dc->w.WndOrgY = y;
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return TRUE;
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}
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/***********************************************************************
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* OffsetViewportOrg (GDI.17)
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*/
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DWORD OffsetViewportOrg( HDC hdc, short x, short y )
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{
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POINT pt;
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if (!OffsetViewportOrgEx( hdc, x, y, &pt )) return 0;
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return pt.x | (pt.y << 16);
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}
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/***********************************************************************
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* OffsetViewportOrgEx (GDI.476)
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*/
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BOOL OffsetViewportOrgEx( HDC hdc, short x, short y, LPPOINT pt )
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{
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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if (pt)
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{
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pt->x = dc->w.VportOrgX;
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pt->y = dc->w.VportOrgY;
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}
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dc->w.VportOrgX += x;
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dc->w.VportOrgY += y;
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return TRUE;
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}
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/***********************************************************************
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* OffsetWindowOrg (GDI.15)
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*/
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DWORD OffsetWindowOrg( HDC hdc, short x, short y )
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{
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POINT pt;
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if (!OffsetWindowOrgEx( hdc, x, y, &pt )) return 0;
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return pt.x | (pt.y << 16);
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}
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/***********************************************************************
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* OffsetWindowOrgEx (GDI.477)
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*/
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BOOL OffsetWindowOrgEx( HDC hdc, short x, short y, LPPOINT pt )
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{
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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if (pt)
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{
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pt->x = dc->w.WndOrgX;
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pt->y = dc->w.WndOrgY;
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}
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dc->w.WndOrgX += x;
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dc->w.WndOrgY += y;
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return TRUE;
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}
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/***********************************************************************
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* ScaleViewportExt (GDI.18)
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*/
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DWORD ScaleViewportExt( HDC hdc, short xNum, short xDenom,
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short yNum, short yDenom )
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{
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SIZE size;
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if (!ScaleViewportExtEx( hdc, xNum, xDenom, yNum, yDenom, &size ))
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return 0;
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return size.cx | (size.cy << 16);
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}
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/***********************************************************************
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* ScaleViewportExtEx (GDI.484)
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*/
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BOOL ScaleViewportExtEx( HDC hdc, short xNum, short xDenom,
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short yNum, short yDenom, LPSIZE size )
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{
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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if (size)
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{
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size->cx = dc->w.VportExtX;
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size->cy = dc->w.VportExtY;
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}
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if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
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return TRUE;
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if (!xNum || !xDenom || !xNum || !yDenom) return FALSE;
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dc->w.VportExtX = (dc->w.VportExtX * xNum) / xDenom;
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dc->w.VportExtY = (dc->w.VportExtY * yNum) / yDenom;
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if (dc->w.VportExtX == 0) dc->w.VportExtX = 1;
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if (dc->w.VportExtY == 0) dc->w.VportExtY = 1;
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if (dc->w.MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
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return TRUE;
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}
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/***********************************************************************
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* ScaleWindowExt (GDI.16)
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*/
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DWORD ScaleWindowExt( HDC hdc, short xNum, short xDenom,
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short yNum, short yDenom )
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{
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SIZE size;
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if (!ScaleWindowExtEx( hdc, xNum, xDenom, yNum, yDenom, &size ))
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return 0;
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return size.cx | (size.cy << 16);
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}
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/***********************************************************************
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* ScaleWindowExtEx (GDI.485)
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*/
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BOOL ScaleWindowExtEx( HDC hdc, short xNum, short xDenom,
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short yNum, short yDenom, LPSIZE size )
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{
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DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc) return FALSE;
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if (size)
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{
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size->cx = dc->w.WndExtX;
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size->cy = dc->w.WndExtY;
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}
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if ((dc->w.MapMode != MM_ISOTROPIC) && (dc->w.MapMode != MM_ANISOTROPIC))
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return TRUE;
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if (!xNum || !xDenom || !xNum || !yDenom) return FALSE;
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dc->w.WndExtX = (dc->w.WndExtX * xNum) / xDenom;
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dc->w.WndExtY = (dc->w.WndExtY * yNum) / yDenom;
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if (dc->w.WndExtX == 0) dc->w.WndExtX = 1;
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if (dc->w.WndExtY == 0) dc->w.WndExtY = 1;
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if (dc->w.MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
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return TRUE;
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}
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