prreadgpldialog.cpp

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/*
 * 
 * prreadgpldialog.cpp
 *
   Copyright (C) 2006 Michael H. Overlin

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   
   Contact at [e-mail]
 *
 */

#include "prreadgpldialog.h"

#include "mathutils.h"
#include "prreadgpldialog_rc.h"
#include "prutils.h"
#include "types.h"

//#include "C:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\Include\richedit.h"
#define EM_SETTEXTEX			(WM_USER + 97)
typedef struct _settextex
{
	DWORD	flags;	
	UINT	codepage;					
} SETTEXTEX;
#define ST_DEFAULT		0


#define LICENCE_SIDEMARGINS_PIXELS			12

ReadGPLDialog::ReadGPLDialog(HINSTANCE hinst, LPTSTR lptstrGPL_RTF, BOOL bRequireReadToEnd) 
:
	DialogWindow(hinst, IDD_DIALOG_LICENSE) 
{ 
	m_lptstrGPL_RTF = lptstrGPL_RTF;
	m_bRequireReadToEnd = bRequireReadToEnd;
}

ReadGPLDialog::~ReadGPLDialog() {
	// NOTHING TO DELETE
}

BOOL ReadGPLDialog::InitMsg(WPARAM wParam, LPARAM lParam) {
	DialogWindow::InitMsg(wParam, lParam);
	BOOL bRetValue = FALSE;

	this->CenterWindowAboveParent();

	if (!m_bRequireReadToEnd) {
		HWND hwndCancel = this->GetDlgItem(IDC_BUTTON_CANCEL_GPL);
		::ShowWindow(hwndCancel, SW_HIDE);
		HWND hwndOK = this->GetDlgItem(IDC_BUTTON_OK_GPL);
		::CenterWindowHorizontallyInDialog(hwndOK, this->hdlg());
	}

	{
		tstring tstrTitle;
		::ComposeDialogTitle(PrintResizerComponents::eInstaller, tstrTitle, TEXT("License Agreement"));
		this->SetWindowText(tstrTitle.c_str());
	}

	// 7/12

	//HINSTANCE hInst = this->hinst();
	//HRSRC hResInfo = ::FindResource(hInst, MAKEINTRESOURCE(IDF_PRINTRESIZER_DATAFILE), MAKEINTRESOURCE(RC_BINARYTYPE));
	//if (hResInfo != NULL) {
	//	HGLOBAL hgRes = ::LoadResource(hInst, hResInfo);
	//	if (hgRes != NULL) {
	//		void *pvRes = ::LockResource(hgRes);
	//		if (pvRes != NULL) {
	//			//DWORD dwcRes = ::SizeofResource(hInst, hResInfo);

				void *pvRes = (void *) m_lptstrGPL_RTF;

				::SETTEXTEX settext;
				settext.flags = ST_DEFAULT;
				settext.codepage = 1200; // UNICODE, NO TRANSLATION TO UNICODE IS PERFORMED

				this->SendDlgItemMessage(IDC_RICHEDIT_GPL, EM_SETTEXTEX, (WPARAM) &settext, (LPARAM) pvRes);
				//this->SendDlgItemMessage(IDC_RICHEDIT_GPL, EM_SETMARGINS, (WPARAM) EC_USEFONTINFO, 0);
				this->SendDlgItemMessage(IDC_RICHEDIT_GPL, EM_SETMARGINS, 
					(WPARAM) ( EC_LEFTMARGIN | EC_RIGHTMARGIN ), 
					(LPARAM) MAKELPARAM(LICENCE_SIDEMARGINS_PIXELS,LICENCE_SIDEMARGINS_PIXELS) );
				
				bRetValue = TRUE;

	//			UnlockResource(hgRes);
	//		}
	//		::FreeResource(hgRes);
	//	}
	//}			

	return TRUE;
}


BOOL ReadGPLDialog::CommandMsg(WPARAM wParam, LPARAM lParam) {
	WORD wID = LOWORD(wParam);
	switch(wID) {
	case IDC_BUTTON_OK_GPL: 
		if (this->m_bRequireReadToEnd) {
			HWND hwndRE = this->GetDlgItem(IDC_RICHEDIT_GPL);
			
			RECT r;
			::GetClientRect(hwndRE, &r);
			POINTL pt = { RW(r), RH(r) };
			LRESULT lresChar = ::SendMessage(hwndRE, EM_CHARFROMPOS, 0, (LPARAM) &pt);
			LRESULT lresLength = ::SendMessage(hwndRE, WM_GETTEXTLENGTH, 0, 0);

			if (lresChar >= lresLength) {
				this->EndDialog(ReadGPLDialog::eUserOK);
			} else {
				::ErrorMessage(::PrintResizerComponents::eInstaller, this->hdlg(), 
					TEXT("Please scroll the license text all the way to the bottom to read it, and then press OK."));
			}
		} else {
			this->EndDialog(ReadGPLDialog::eUserOK);
		}
		break;
	case IDC_BUTTON_CANCEL_GPL: 
		this->EndDialog(ReadGPLDialog::eUserCancelInstallation);
		break;
	default:
		break;
	}
	return TRUE;
}

BOOL ReadGPLDialog::NotificationMsg(UINT msg, WPARAM wParam, LPARAM lParam) {
	switch(msg) {
		case WM_CLOSE:
			this->PostMessage(WM_COMMAND, MAKEWPARAM(IDC_BUTTON_OK_GPL, 0), 0);
			break;
		default:
			break;
	}
	return FALSE;
}