code_device/hgdriver/hgdev/PaperSize.cpp

#include "PaperSize.h"

using namespace std;

namespace Device {

	PaperSize::PaperSize(int pid):pid_(pid)
	{
		InitPaperMap();
	}

	void PaperSize::InitPaperMap()
	{
		papersize.insert({ A3,SIZE{297,420} });
		papersize.insert({ A4,SIZE{210,297} });
		papersize.insert({ A5,SIZE{148,210} });
		papersize.insert({ A6,SIZE{105,148} });
		papersize.insert({ B4,SIZE{250,353} });
		papersize.insert({ B5,SIZE{176,250} });
		papersize.insert({ B6,SIZE{125,176} });
	if(pid_ == 0x400 || pid_ == 0x402)
		papersize.insert({ MaxSize,SIZE{297,(long)(420 * 1.5)} });
	else if(pid_ == 0x300)
		papersize.insert({ MaxSize,SIZE{210,297 * 2} });
	else
		papersize.insert({ MaxSize,SIZE{297,420 * 2} });
	
	if(pid_ == 0x300)
		papersize.insert({ USStatement,SIZE{210,(long)(297 * 1.5)} });
	else
		papersize.insert({ USStatement,SIZE{297,(long)(420 * 1.5)} });
	
		papersize.insert({ USLetter,SIZE{216,279} });
		papersize.insert({ USLegal,SIZE{216,356} });
		papersize.insert({ USLedger,SIZE{297,432} });
		papersize.insert({ None,SIZE{297,420} });
		papersize.insert({ K8,SIZE{270,390} });
		papersize.insert({ K16,SIZE{190,270} });
		papersize.insert({ Trigeminy,SIZE{270,560} });	
	}

	SIZE PaperSize::GetPaperSize(DWORD paperType, float dpi,int orentation)
	{

		if (papersize.find((TwSS)paperType) != papersize.end() && (dpi > 99 && dpi < 601)) 
		{
            SIZE resize{2338,3307};
			long cx = papersize[(TwSS)paperType].cx * dpi / 25.4;
			long cy = papersize[(TwSS)paperType].cy * dpi / 25.4;
			if (orentation == 0)
			{
				resize.cx = cx;
				resize.cy = cy;
			}
			else
			{
				resize.cx = cy;
				resize.cy = cx;
			}
			return resize;
		}
        return SIZE{2338, 3307};
	}
}