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Kernel

offattr.cpp File Reference

(r1785/r1361)

#include "camtypes.h"
#include "offattr.h"
#include "GDrawIntf.h"
#include "offscrn.h"
#include "grndrgn.h"
#include "oilbitmap.h"

Go to the source code of this file.

Defines

#define new   CAM_DEBUG_NEW
#define BOGUS_DEFAULT_ATTR_NODE_POINTER   (NodeRenderableBounded*) 0x1

Functions

FIXED16 GetCurrentViewScale ()
MILLIPOINT ConvertMeasurementToMillipointsAtCurrentViewScale (INT32 Width, UnitType type)
UINT32 ConvertMillipointsToPixelsAtCurrentViewScale (MILLIPOINT mp)
INT32 PixelsPerMeterAtCurrentViewScale ()

Define Documentation

#define BOGUS_DEFAULT_ATTR_NODE_POINTER   (NodeRenderableBounded*) 0x1
 

Definition at line 119 of file offattr.cpp.

#define new   CAM_DEBUG_NEW
 

Definition at line 118 of file offattr.cpp.

Function Documentation

MILLIPOINT ConvertMeasurementToMillipointsAtCurrentViewScale (  INT32  Width,
UnitType  type
) 
 

Definition at line 140 of file offattr.cpp.

00141 {
00142     const double dpi = (double)GRenderRegion::GetDefaultDPI();
00143     const double MillipointsPerPixel = (dpi <= 0) ? 750.0 : MILLIPOINTS_PER_INCH / dpi;
00144 
00145     double ScaledWidth = 0;
00146 
00147     switch(type)
00148     {
00149         case MILLIPOINTS:
00150             ScaledWidth = Width;
00151             break;
00152 
00153         case PIXELS:
00154             ScaledWidth =   MillipointsPerPixel * Width;
00155             ScaledWidth /=  GetCurrentViewScale().MakeDouble();
00156             break;
00157 
00158          // unsupported unit type.
00159         default:
00160             ScaledWidth = -1;
00161             break;
00162     }
00163 
00164     return (MILLIPOINT)ScaledWidth;
00165 }

UINT32 ConvertMillipointsToPixelsAtCurrentViewScale (  MILLIPOINT  mp  ) 
 

Definition at line 167 of file offattr.cpp.

00168 {
00169     const double dpi = (double)GRenderRegion::GetDefaultDPI();
00170     const double MillipointsPerPixel = (dpi <= 0) ? 750.0 : MILLIPOINTS_PER_INCH / dpi;
00171 
00172     // NB   this routine rounds to the nearest pixel, so if you convert
00173     //      from mp to pixels and back again, you are highly unlikely
00174     //      to get the value you started off with!
00175     double  Pixels  =   (mp / MillipointsPerPixel);
00176             Pixels  *=  GetCurrentViewScale().MakeDouble();
00177 
00178     return (UINT32)(Pixels + 0.5);
00179 }

FIXED16 GetCurrentViewScale (   ) 
 

Definition at line 131 of file offattr.cpp.

00132 {
00133     View* pView = View::GetCurrent();
00134     if (pView == NULL)
00135         return FIXED16(0);
00136 
00137     return pView->GetViewScale();
00138 }

INT32 PixelsPerMeterAtCurrentViewScale (   ) 
 

Definition at line 181 of file offattr.cpp.

00182 {
00183     // NB   return value is given to the nearest pixel.
00184     double  ppm =   PIXELS_PER_INCH * INCHES_PER_METRE;
00185             ppm *=  GetCurrentViewScale().MakeDouble();
00186     return (INT32)(ppm + 0.5);
00187 }

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