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