previewdialog_helpmenu.cpp

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/*
 *
 * previewdialog_helpmenu.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 "previewdialog.h"

#include "previewdialog_switches.h"
#include "prpreviewutils.h"
#include "resource.h"

#include "..\lib\dialogwindow.h"
#include "..\lib\myfilemap.h"
#include "..\lib\printResizerCommon.h"
#include "..\lib\prreadgpldialog.h"
#include "..\lib\prutils.h"
#include "..\lib\subclasswindow.h"

#include <shellapi.h>

// *****************************************************************************************
// **  MODULE PRIVATE  TYPES  **************************************************************
// *****************************************************************************************

class AboutDialog : public DialogWindow {
public:
	AboutDialog(PreviewDialog& pd, HINSTANCE hinst, const tstring& tstrTitle);
	virtual ~AboutDialog();

protected:
	virtual BOOL InitMsg(WPARAM wParam, LPARAM lParam);
	virtual BOOL CommandMsg(WPARAM wParam, LPARAM lParam);
	virtual BOOL CommonControlColorNotifyMsg(UINT msg, WPARAM wParam, LPARAM lParam);
	virtual BOOL NotificationMsg(UINT msg, WPARAM wParam, LPARAM lParam) ;

private:
	PreviewDialog& m_pd;
	tstring m_tstrTitle;
};

class DocumentationDialog : public DialogWindow {
public:
	DocumentationDialog(PreviewDialog& pd, HINSTANCE hinst, const tstring& tstrTitle);
	virtual ~DocumentationDialog();

protected:
	virtual BOOL InitMsg(WPARAM wParam, LPARAM lParam);
	virtual BOOL CommandMsg(WPARAM wParam, LPARAM lParam);
	virtual BOOL CommonControlColorNotifyMsg(UINT msg, WPARAM wParam, LPARAM lParam);
	virtual BOOL NotificationMsg(UINT msg, WPARAM wParam, LPARAM lParam) ;

private:
	PreviewDialog& m_pd;
	tstring m_tstrTitle;
};

class HTMLLinkSubClass : public SubClassWindow {
public:
	HTMLLinkSubClass(PreviewDialog& pd, HWND hwndUI, HINSTANCE hinst, HWND hwndTarget);
	virtual ~HTMLLinkSubClass() ;

protected:
	virtual void CursorMsg(Window::MSGRESULT& mr, UINT msg, WPARAM wParam, LPARAM lParam) ;
	virtual void MouseMsg(Window::MSGRESULT& mr, UINT msg, WPARAM wParam, LPARAM lParam) ;
private:
	PreviewDialog& m_pd;
	HCURSOR m_hcursHand;
	HWND m_hwndUI;
};


// *****************************************************************************************
// **  class PreviewDialog  ****************************************************************
// *****************************************************************************************

void PreviewDialog::OnHelpAbout(void) {
	tstring tstrTitle;
	this->ComposeDialogTitle(tstrTitle, TEXT("About"));
	AboutDialog *pad = new AboutDialog(*this, this->hinst(), tstrTitle);
	pad->DoModalDialog(this->hdlg());
}

void PreviewDialog::OnHelpDocumentation(void) {
	tstring tstrTitle;
	this->ComposeDialogTitle(tstrTitle, TEXT("Documentation"));
	::DocumentationDialog *pdd = new ::DocumentationDialog(*this, this->hinst(), tstrTitle);
	pdd->DoModalDialog(this->hdlg());
}

// *****************************************************************************************
// **  MODULE PRIVATE:  class AboutDialog  *************************************************
// *****************************************************************************************

AboutDialog::AboutDialog(PreviewDialog& pd, 
						 HINSTANCE hinst, const tstring& tstrTitle) 
: 
	DialogWindow(hinst, IDD_DIALOG_ABOUT),
	m_pd(pd)
{
	m_tstrTitle = tstrTitle;
}

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

// ****
// **** protected 
// ****

BOOL AboutDialog::InitMsg(WPARAM wParam, LPARAM lParam) {
	DialogWindow::InitMsg(wParam, lParam);

	this->CenterWindowAboveParent();
	this->SetWindowText(m_tstrTitle.c_str());
	this->SetDlgItemText(IDC_STATIC_VERSION, PRINTRESIZER_VERSION_USER_SEES);
	this->SetDlgItemText(IDC_STATIC_AUTHOR, PRINTRESIZER_AUTHOR);
	this->SetDlgItemText(IDC_STATIC_CONTACT, PRINTRESIZER_CONTACT);
	this->SetDlgItemText(IDC_STATIC_WEBSITE, PRINTRESIZER_URL);
	this->SetDlgItemText(IDC_STATIC_BUGREPORT, PRINTRESIZER_BUGREPORT);
	this->SetDlgItemText(IDC_STATIC_SOURCE_CODE, PRINTRESIZER_SOURCE);
	this->SetDlgItemText(IDC_STATIC_OTHERCREDITS, PRINTRESIZER_OTHERCREDITS);
	this->SetDlgItemText(IDC_STATIC_OSFOR, PRINTRESIZER_OSFOR);
	this->SetDlgItemText(IDC_STATIC_PUBLISHDATE, PRINTRESIZER_PUBLISHDATE);

	HWND hwndWeb = this->GetDlgItem(IDC_STATIC_WEBSITE);
	new ::HTMLLinkSubClass(m_pd, this->hdlg(), this->hinst(), hwndWeb);
	HWND hwndBug = this->GetDlgItem(IDC_STATIC_BUGREPORT);
	new ::HTMLLinkSubClass(m_pd, this->hdlg(), this->hinst(), hwndBug);
	HWND hwndSource = this->GetDlgItem(IDC_STATIC_SOURCE_CODE);
	new ::HTMLLinkSubClass(m_pd, this->hdlg(), this->hinst(), hwndSource);
	HWND hwndContact = this->GetDlgItem(IDC_STATIC_CONTACT);
	new ::HTMLLinkSubClass(m_pd, this->hdlg(), this->hinst(), hwndContact);

	return TRUE;
}

BOOL AboutDialog::CommandMsg(WPARAM wParam, LPARAM lParam) {
	BOOL bRetValue = TRUE;
	WORD wID = LOWORD(wParam);
	switch(wID) {
	case IDC_BUTTON_LICENSE: {
		BOOL bDialogShown = FALSE;
		LPTSTR lptstrFileNameGPLRTFText = ::GetInstalledGPLRTFTextFileName();
		if (lptstrFileNameGPLRTFText != NULL) {
			LPTSTR lptstrGPL_RTF = NULL;
			try {
				::MyFileMap mfm;
				if (mfm.Open(lptstrFileNameGPLRTFText)) {
					DWORD dwCb = mfm.GetSize();
					lptstrGPL_RTF = (LPTSTR) malloc(dwCb);
					if (lptstrGPL_RTF != NULL) {
						::CopyMemory(lptstrGPL_RTF, mfm.GetBasePtr(), dwCb);
					}
					mfm.Close();
				}
			} catch ( ... ) {
			}

			if (lptstrGPL_RTF != NULL) {
				::ReadGPLDialog *prgpld = new ::ReadGPLDialog(this->hinst(), lptstrGPL_RTF, FALSE);
				prgpld->DoModalDialog(this->hdlg());
				bDialogShown = TRUE;
				free(lptstrGPL_RTF);
			}

			free(lptstrFileNameGPLRTFText);
		}

		if (!bDialogShown) {
			m_pd.ErrorMessage(TEXT("Error loading GPL license text"));
		}
	} break;
	case IDC_BUTTON_OK:
		this->EndDialog(0);
		break;
	default:
		bRetValue = FALSE;
		break;
	}
	return bRetValue;
}

BOOL AboutDialog::CommonControlColorNotifyMsg(UINT msg, WPARAM wParam, LPARAM lParam) {
	// NOT STRICTLY CORRECT TO USE A STATIC VARIABLE FOR THIS ; IF THERE WERE EVER MULTIPLE
	// ABOUT DIALOGS UP AT ONCE, THE STATE WOULD BE INCORRECTLY SHARED AMONGST THEM ALL
	static BOOL bSkipRecursion = FALSE;
	BOOL bRetValue = FALSE;

	// I WANT TO CALL THE DEFDLGPROC TO GET THE BACKGROUND BRUSH
	// BUT I WANT TO SET THE TEXT COLOR
	switch(msg) {
	case WM_CTLCOLORSTATIC:
		if (!bSkipRecursion) {
			HWND hwndControl = (HWND) lParam;
			int iCtrlID = ::GetDlgCtrlID(hwndControl);
			if (iCtrlID == IDC_STATIC_BUGREPORT	||
				iCtrlID == IDC_STATIC_CONTACT		||
				iCtrlID == IDC_STATIC_SOURCE_CODE ||
				iCtrlID == IDC_STATIC_WEBSITE
			) {
				HDC hdc = (HDC) wParam;

				bSkipRecursion = TRUE;
				LRESULT lres = ::CallWindowProc(::DefDlgProc, this->hdlg(), WM_CTLCOLORSTATIC, wParam, lParam);
				bSkipRecursion = FALSE;

				bRetValue = (BOOL) lres;
				// BLUE COLOR FOR URL
				::SetTextColor(hdc, RGB(0, 0, 0xff));
			}
		}
		break;
	default:
		break;
	}
	return bRetValue;
}

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

// *****************************************************************************************
// **  MODULE PRIVATE:  class DocumentationDialog  *****************************************
// *****************************************************************************************

DocumentationDialog::DocumentationDialog(PreviewDialog& pd, 
						 HINSTANCE hinst, const tstring& tstrTitle) 
: 
	DialogWindow(hinst, IDD_DIALOG_DOCUMENTATION),
	m_pd(pd)
{
	m_tstrTitle = tstrTitle;
}

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

// ****
// **** protected 
// ****

BOOL DocumentationDialog::InitMsg(WPARAM wParam, LPARAM lParam) {
	DialogWindow::InitMsg(wParam, lParam);

	this->CenterWindowAboveParent();
	this->SetWindowText(m_tstrTitle.c_str());

	this->SetDlgItemText(IDC_STATIC_DIRECTORYURL, PRINTRESIZER_URL);
	HWND hwndURL = this->GetDlgItem(IDC_STATIC_DIRECTORYURL);
	new ::HTMLLinkSubClass(m_pd, this->hdlg(), this->hinst(), hwndURL);

	return TRUE;
}

BOOL DocumentationDialog::CommandMsg(WPARAM wParam, LPARAM lParam) {
	BOOL bRetValue = TRUE;
	WORD wID = LOWORD(wParam);
	switch(wID) {
	case IDC_BUTTON_OK:
		this->EndDialog(0);
		break;
	default:
		bRetValue = FALSE;
		break;
	}
	return bRetValue;
}

BOOL DocumentationDialog::CommonControlColorNotifyMsg(UINT msg, WPARAM wParam, LPARAM lParam) {
	// NOT STRICTLY CORRECT TO USE A STATIC VARIABLE FOR THIS ; IF THERE WERE EVER MULTIPLE
	// ABOUT DIALOGS UP AT ONCE, THE STATE WOULD BE INCORRECTLY SHARED AMONGST THEM ALL
	static BOOL bSkipRecursion = FALSE;
	BOOL bRetValue = FALSE;

	// I WANT TO CALL THE DEFDLGPROC TO GET THE BACKGROUND BRUSH
	// BUT I WANT TO SET THE TEXT COLOR
	switch(msg) {
	case WM_CTLCOLORSTATIC:
		if (!bSkipRecursion) {
			HWND hwndControl = (HWND) lParam;
			int iCtrlID = ::GetDlgCtrlID(hwndControl);
			if (iCtrlID == IDC_STATIC_DIRECTORYURL) {
				HDC hdc = (HDC) wParam;

				bSkipRecursion = TRUE;
				LRESULT lres = ::CallWindowProc(::DefDlgProc, this->hdlg(), WM_CTLCOLORSTATIC, wParam, lParam);
				bSkipRecursion = FALSE;

				bRetValue = (BOOL) lres;
				// BLUE COLOR FOR URL
				::SetTextColor(hdc, RGB(0, 0, 0xff));
			}
		}
		break;
	default:
		break;
	}
	return bRetValue;
}

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

// *****************************************************************************************
// **  MODULE PRIVATE:  class HTMLLinkSubClass  ********************************************
// *****************************************************************************************

HTMLLinkSubClass::HTMLLinkSubClass(PreviewDialog& pd, HWND hwndUI, HINSTANCE hinst, HWND hwndTarget) : 
  SubClassWindow(hinst, hwndTarget),
  m_pd(pd)
{
	m_hwndUI = hwndUI;
	m_hcursHand = LoadCursor(NULL, IDC_HAND);
}

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

void HTMLLinkSubClass::CursorMsg(Window::MSGRESULT& mr, UINT msg, WPARAM wParam, LPARAM lParam) {
	switch(msg) {
	case WM_SETCURSOR: 
		if (m_hcursHand != NULL) {
			::SetCursor(m_hcursHand);
			mr.bProcessed = TRUE;
			mr.lRetValue = 0;
		}
		break;
	default:
		break;
	}
}

void HTMLLinkSubClass::MouseMsg(Window::MSGRESULT& mr, UINT msg, WPARAM wParam, LPARAM lParam) {
	switch(msg) {
	case WM_LBUTTONDOWN: {			
		LPTSTR lptstrLink = this->GetWindowText();
		if (lptstrLink != NULL) {
			int iRetCode = (int) ::ShellExecute(m_hwndUI, TEXT("open"), lptstrLink, NULL, NULL, SW_SHOW); 
			if (iRetCode <= 32) {
				tstring tstrMessage = TEXT("There was an error opening a web browser to display ");
				tstrMessage += lptstrLink;
				m_pd.ErrorMessage(tstrMessage.c_str());
			}
			free(lptstrLink);
		} else {
			m_pd.ErrorMessage(TEXT("Unexpected error"));
		}
		mr.bProcessed = TRUE;
		mr.lRetValue = 0;
	} break;
	default:
		break;
	}
}