#include <origin.h>
#include <GetNBox.h>
#include <xfutils.h>


#include <GetNBox.h>
#include <image_utils.h>


static int _gamma_image(BITMAPHANDLE* pLBmp,  double da )
{
	UINT na = da*100;
	
	return L_GammaCorrectBitmap(pLBmp, na);

}


void imgGamma(const double& a, const Image& img, Image& oimg)
{
	
	//copy the srcImg to dstImg;
	oimg.SetLBmp(img.GetLBmp(), TRUE);
	pBITMAPHANDLE phBmp = oimg.GetLBmp();
	
	int nRet = _gamma_image(phBmp,a); 
	
	if(nRet < MAX_ERROR_CODE_FROM_LT)
		XF_THROW_EX(XFERR_LEADTOOLS_FUNCTION_UNKNOWN_ERR, nRet);
	
	if(nRet !=  SUCCESS)
		XF_THROW(nRet);	
	
				
}

//nEventID < 0 on event, like GETNE_ON_INIT, GETNE_ON_OK etc, >0 on change from control
//return 0 to do nothing, return PEVENT_GETN_RET_TO_CLOSE to close dialog
//dwEnables = bOKEnable, bBTN1Enable, bBTN2Enable, bBTN3Enable, , can set to false to disable OK/Apply buttons
//lpcszNodeName = the trGetN TreeNode tag name that generates the event, or is  if GETNE_ON_OK etc
//strAux = optional string for XF Wizard Bar, like DLG_NEED_CHANGE_GRID etc, it will be invalid if from internal node value change event
//strErrMsg = allowing messages to be shown
int imgGamma_event1(TreeNode& trGetN, int nRow, int nEventID, DWORD& dwEnables, LPCSTR lpcszNodeName, WndContainer& DynaCntrlContainer, string& strAux, string& strErrMsg)
{
	if( xf_is_extended_event(nEventID) )
		return imgGamma_event1_ex(trGetN, nRow, nEventID, dwEnables, lpcszNodeName, DynaCntrlContainer, strAux, strErrMsg);
	DECLARE_BUTTON_ENABLES
	
	return false;
	
	

}

int imgGamma_make_tree(TreeNode& tr, LPCSTR lpcszVarName)
{
	
	return false;
	
}
//nGetNDialog = 0,1,2, corresponding to the XF GetN dropdown, 0 = dialog is not used
//you can change nRet to be one of XFEVT_PROCEED (defualt), XFEVT_ABORT, XFEVT_PROCEED_NO_DLG or XFEVT_PROCEED_WITH_DLG(when nGetNDialog = 0)
//nGetNDialog = -1 when Ok on GetN dialog to allow handler to preocess <auto> etc variables
//dwCntrl is combination of bits
//LTXF_FROM_GUI_MENU, LTXF_FROM_GUI_PROMPT, LTXF_FROM_AUTO_UPDATE, LTXF_FROM_FUNCTION, LTXF_THEME_USED, LTXF_CHANGE_PARAM
void imgGamma_before_execute(TreeNode& trGetN, int nGetNDialog, int& nRet, int dwCntrl)
{

}
//nEventID < 0 on event, like GETNE_ON_INIT, GETNE_ON_OK etc, >0 on change from control
//return 0 to do nothing, return PEVENT_GETN_RET_TO_CLOSE to close dialog
//dwEnables = bOKEnable, bBTN1Enable, bBTN2Enable, bBTN3Enable, , can set to false to disable OK/Apply buttons
//lpcszNodeName = the trGetN TreeNode tag name that generates the event, or is  if GETNE_ON_OK etc
//strAux = optional string for XF Wizard Bar, like DLG_NEED_CHANGE_GRID etc, it will be invalid if from internal node value change event
//strErrMsg = allowing messages to be shown
int imgGamma_event1_ex(TreeNode& trGetN, int nRow, int nEventID, DWORD& dwEnables, LPCSTR lpcszNodeName, WndContainer& DynaCntrlContainer, string& strAux, string& strErrMsg)
{
	return false;
}


// this is called when the GetNImageBox dialog is open
// bUpdateGrid = false when entering this function
// you need to set bUpdateGrid = true if you need to modify trGetN data and want to see the
// grid updated, for example
// trGetN.angle.nVal = 0; // force rotation to init to 0
// bUpdateGrid = true;
// bOKEnable is default = true, you may add code to check trGetN and decide that the OK button should be disabled, then set this to false
// example: 
// if(0==trGetN.angle.nVal) // no change, no point to click Ok to do nothing
//    bOKEnable = false; 
static void GetNImageBox_OnInit(TreeNode& trGetN, ImageControlBase* pimgCntrl, bool& bUpdateGrid, bool& bOKEnable, string& strErrMsg)
{
	pBITMAPHANDLE pPreviewBitmap;
	pPreviewBitmap=pimgCntrl->GetBitmapHandlePtr();
	
	int nRet = _gamma_image(pPreviewBitmap, trGetN.a.dVal);	
	if( SUCCESS != nRet)
	{
		bOKEnable = false;
		strErrMsg = nRet;
	}
	
	bUpdateGrid = true;
}

// this is called whenever any controls in the grid is modified by the user
// upon entering function
// bUpdatePreview = true;// to update the preview image pPreviewBitmap
// bUpdateGrid = false; // event triggered by grid change, so default no need to update again
// if you want to modify other controls in the grid, then you need to set bUpdateGrid to true
// bOKEnable is default = true, you may add code to check trGetN and decide that the OK button should be disabled, then set this to false
static void GetNImageBox_OnChange(BITMAPHANDLE* pPreviewBitmap, TreeNode& trGetN, TreeNode& trNode, ImageControlBase* pimgCntrl, bool& bUpdatePreview, bool& bUpdateGrid, bool& bOKEnable, string& strErrMsg)
{

	int nRet = _gamma_image(pPreviewBitmap, trGetN.a.dVal);	
	if( SUCCESS != nRet)
	{
		bOKEnable = false;
		strErrMsg = nRet;
	}
	bUpdatePreview = true;
}
	
int GetNImageBox_imgGamma(TreeNode& trGetN, int nRow, int nCol, TreeNode& trNode, DWORD dwCntrl, int nType, WndContainer& theDlg, ImageControlBase* pimgCntrl)
{
	return xf_GetNImageBox_event_handler(trGetN, nRow, nCol, trNode, dwCntrl, nType, pimgCntrl,
								GetNImageBox_OnInit, GetNImageBox_OnChange);	
}
