Magic_Game/Easy2D/Node/Image.cpp

#include "..\Easy2d.h"
#include "..\EasyX\easyx.h"

// <20><> PNG ͼ<><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>
static void CrossImage(CImage &img);

Image::Image() :
	m_fScaleX(1),
	m_fScaleY(1)
{
}

Image::Image(LPCTSTR ImageFile) :
	m_fScaleX(1),
	m_fScaleY(1)
{
	setImage(ImageFile);	// <20><><EFBFBD><EFBFBD>ͼƬ<CDBC><C6AC>Դ
}

Image::Image(LPCTSTR ImageFile, int x, int y, int width, int height) :
	m_fScaleX(1),
	m_fScaleY(1)
{
	setImage(ImageFile, x, y, width, height);	// <20><><EFBFBD><EFBFBD>ͼƬ<CDBC><C6AC>Դ<EFBFBD>Ͳü<CDB2><C3BC><EFBFBD>С
}

Image::~Image()
{
}

void Image::_onDraw()
{
	// display <20><><EFBFBD><EFBFBD>Ϊ false<73><65><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD><EFBFBD>ͼƬ<CDBC><C6AC>Դʱ<D4B4><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƹ<EFBFBD>ͼƬ
	if (!m_bDisplay || m_Image.IsNull())
	{
		return;
	}
	// <20><><EFBFBD><EFBFBD>ͼƬ
	m_Image.Draw(GetImageHDC(), m_rDest, m_rSrc);
}

int Image::getWidth() const
{
	return m_rDest.Width();		// Ŀ<><C4BF><EFBFBD><EFBFBD><EFBFBD>εĿ<CEB5><C4BF><EFBFBD>
}

int Image::getHeight() const
{
	return m_rDest.Height();	// Ŀ<><C4BF><EFBFBD><EFBFBD><EFBFBD>εĸ߶<C4B8>
}

float Image::getScaleX() const
{
	return m_fScaleX;
}

float Image::getScaleY() const
{
	return m_fScaleY;
}

bool Image::setImage(LPCTSTR ImageFile)
{
	//<2F>ж<EFBFBD>ͼƬ·<C6AC><C2B7><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
	if (!PathFileExists(ImageFile))
	{
		return false;
	}
	// <20><><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>Դ
	if (!m_Image.IsNull())
	{
		m_Image.Destroy();
	}
	// <20><><EFBFBD><EFBFBD>ͼƬ
	m_Image.Load(ImageFile);
	// <20><><EFBFBD><EFBFBD>ʧ<EFBFBD><CAA7>
	if (m_Image.IsNull())
	{
		return false;
	}
	// <20><>ȡ<EFBFBD><C8A1>չ<EFBFBD><D5B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD> PNG ͼƬ<CDBC><C6AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>⴦<EFBFBD><E2B4A6>
	if (_T(".png") == FileUtils::getFileExtension(ImageFile))
	{
		// <20><><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>
		CrossImage(m_Image);
		// Alpha ͨ<><CDA8>
		m_Image.AlphaBlend(GetImageHDC(), 15, 30);
	}
	// <20><><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD><CEA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD>ڵ<EFBFBD>λ<EFBFBD>úʹ<C3BA>С<EFBFBD><D0A1>
	m_rDest.SetRect(m_nX, m_nY, m_nX + m_Image.GetWidth(), m_nY + m_Image.GetHeight());
	m_rSrc.SetRect(0, 0, m_Image.GetWidth(), m_Image.GetHeight());
	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	m_fScaleX = 1;
	m_fScaleY = 1;

	return true;
}

bool Image::setImage(LPCTSTR ImageFile, int x, int y, int width, int height)
{
	if (!setImage(ImageFile))
	{
		return false;
	}
	// <20>ü<EFBFBD>ͼƬ<CDBC><C6AC>С
	crop(x, y, width, height);

	return true;
}

bool Image::setImageFromRes(LPCTSTR pResName)
{
	// <20><><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD>ͼƬ<CDBC><C6AC><EFBFBD><EFBFBD>֧<EFBFBD><D6A7> PNG<4E><47>
	m_Image.LoadFromResource(GetModuleHandle(NULL), pResName);
	// <20><><EFBFBD><EFBFBD>ʧ<EFBFBD><CAA7>
	if (m_Image.IsNull())
	{
		return false;
	}
	// <20><><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD><CEA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD>ڵ<EFBFBD>λ<EFBFBD>úʹ<C3BA>С<EFBFBD><D0A1>
	m_rDest.SetRect(m_nX, m_nY, m_nX + m_Image.GetWidth(), m_nY + m_Image.GetHeight());
	m_rSrc.SetRect(0, 0, m_Image.GetWidth(), m_Image.GetHeight());
	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	m_fScaleX = 1;
	m_fScaleY = 1;

	return true;
}

bool Image::setImageFromRes(LPCTSTR pResName, int x, int y, int width, int height)
{
	if (!setImageFromRes(pResName))
	{
		return false;
	}
	// <20>ü<EFBFBD>ͼƬ<CDBC><C6AC>С
	crop(x, y, width, height);

	return true;
}

void Image::crop(int x, int y, int width, int height)
{
	width = min(max(width, 0), m_Image.GetWidth());
	height = min(max(height, 0), m_Image.GetHeight());
	// <20><><EFBFBD><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD>ε<EFBFBD>λ<EFBFBD>úʹ<C3BA>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>ڲü<DAB2><C3BC><EFBFBD>
	m_rSrc.SetRect(x, y, x + width, y + height);
	// <20><><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD><CEA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD>ڵ<EFBFBD>λ<EFBFBD>úʹ<C3BA>С<EFBFBD><D0A1>
	m_rDest.SetRect(m_nX, m_nY, m_nX + int(width * m_fScaleX), m_nY + int(height * m_fScaleY));
}

void Image::stretch(int width, int height)
{
	width = max(width, 0);
	height = max(height, 0);
	// <20><><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD>λ<EFBFBD>úʹ<C3BA>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD><EFBFBD>ڵ<EFBFBD>λ<EFBFBD>úʹ<C3BA>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼƬ<CDBC><C6AC>
	m_rDest.SetRect(m_nX, m_nY, m_nX + width, m_nY + height);
	// <20><><EFBFBD>ñ<EFBFBD><C3B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	m_fScaleX = 1;
	m_fScaleY = 1;
}

void Image::scale(float scaleX, float scaleY)
{
	m_fScaleX = max(scaleX, 0);
	m_fScaleY = max(scaleY, 0);
	m_rDest.SetRect(
		m_nX, m_nY, 
		m_nX + int(m_rSrc.Width() * scaleX),
		m_nY + int(m_rSrc.Height() * scaleY));
}

void Image::setPos(int x, int y)
{
	// <20>ƶ<EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	m_rDest.MoveToXY(x, y);
	m_nX = x;
	m_nY = y;
}

void Image::move(int x, int y)
{
	// <20>ƶ<EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	m_rDest.OffsetRect(x, y);
	m_nX += x;
	m_nY += y;
}

void Image::setX(int x)
{
	// <20>ƶ<EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	m_rDest.MoveToX(x);
	m_nX = x;
}

void Image::setY(int y)
{
	// <20>ƶ<EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	m_rDest.MoveToY(y);
	m_nY = y;
}

void Image::setTransparentColor(COLORREF value)
{
	// <20><><EFBFBD><EFBFBD>͸<EFBFBD><CDB8>ɫ
	m_Image.SetTransparentColor(value);
}

void Image::saveScreenshot()
{
	tstring savePath;
	// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>λ<EFBFBD><CEBB>
	if (FileUtils::getSaveFilePath(savePath, _T("<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD>浽"), _T("jpg")))
	{
		// <20><><EFBFBD>洰<EFBFBD>ڽ<EFBFBD>ͼ
		IMAGE image;
		getimage(&image, 0, 0, App::get()->getWidth(), App::get()->getHeight());
		saveimage(savePath.c_str(), &image);
	}
}


// <20><> PNG ͼ<><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>
void CrossImage(CImage &img)
{
	for (int i = 0; i < img.GetWidth(); i++)
	{
		for (int j = 0; j < img.GetHeight(); j++)
		{
			UCHAR *cr = (UCHAR*)img.GetPixelAddress(i, j);
			cr[0] = cr[0] * cr[3] / 255;
			cr[1] = cr[1] * cr[3] / 255;
			cr[2] = cr[2] * cr[3] / 255;
		}
	}
}