source: trunk/Utilities/WindowsMediaCodecList/AboutDialog.h @ 937

////////////////////////////////////////////////////////////
// Copyright (C) Roman Ryltsov, 2008-2013
// Created by Roman Ryltsov roman@alax.info

#pragma once

#include <atlctrls.h>
#include <atlctrlx.h>
#include "rocontrols.h"

#pragma comment(lib, "version.lib")

////////////////////////////////////////////////////////////
// CAboutDialog

class CAboutDialog : 
        public CDialogImpl<CAboutDialog>
{
public:
        enum { IDD = IDD_ABOUT };

BEGIN_MSG_MAP_EX(CAboutDialog)
        MSG_WM_INITDIALOG(OnInitDialog)
        MSG_WM_DESTROY(OnDestroy)
        COMMAND_ID_HANDLER_EX(IDOK, OnCommand)
        COMMAND_ID_HANDLER_EX(IDCANCEL, OnCommand)
END_MSG_MAP()

protected:
        CFont m_TitleFont;
        CFont m_DisclaimerFont;
        CRoHyperStatic m_WebsiteHyperStatic;
        CRoHyperStatic m_EmailHyperStatic;

public:
// CAboutDialog
        static CFontHandle CreateTitleFont() throw()
        {
                CLogFont LogFont;
                LogFont.lfHeight = -MulDiv(12, GetDeviceCaps(CClientDC(GetDesktopWindow()), LOGPIXELSY), 72);
                LogFont.lfWeight = FW_BOLD;
                LogFont.lfItalic = TRUE;
                _tcsncpy_s(LogFont.lfFaceName, _countof(LogFont.lfFaceName), _T("Arial"), _TRUNCATE);
                CFont Font;
                _W(Font.CreateFontIndirect(&LogFont));
                return Font.Detach();
        }
        static CFontHandle CreateDisclaimerFont() throw()
        {
                CLogFont LogFont;
                LogFont.lfHeight = -MulDiv(7, GetDeviceCaps(CClientDC(GetDesktopWindow()), LOGPIXELSY), 72);
                LogFont.lfWeight = FW_NORMAL;
                _tcsncpy_s(LogFont.lfFaceName, _countof(LogFont.lfFaceName), _T("Lucida Console"), _TRUNCATE);
                CFont Font;
                _W(Font.CreateFontIndirect(&LogFont));
                return Font.Detach();
        }
        CAboutDialog() throw()
        {
                _Z4(atlTraceRefcount, 4, _T("this 0x%p\n"), this);
        }
        ~CAboutDialog() throw()
        {
                _Z4(atlTraceRefcount, 4, _T("this 0x%p\n"), this);
        }

// Window message handlers
        LRESULT OnInitDialog(HWND, LPARAM)
        {
                CStatic(GetDlgItem(IDC_ABOUT_ICON)).SetIcon(AtlLoadIconImage(IDI_MODULE, LR_DEFAULTCOLOR, 48, 48));
                #pragma region Title Font
                m_TitleFont = CreateTitleFont();
                CStatic(GetDlgItem(IDC_ABOUT_TITLE)).SetFont(m_TitleFont);
                #pragma endregion 
                #pragma region Disclaimer Font
                {
                        m_DisclaimerFont = CreateDisclaimerFont();
                        CStatic CopyrightWarningText = GetDlgItem(IDC_ABOUT_COPYRIGHTWARNING);
                        CopyrightWarningText.SetFont(m_DisclaimerFont);
                        {
                                CString sText = AtlLoadString(IDC_ABOUT_COPYRIGHTWARNING);
                                CopyrightWarningText.SetWindowText(sText);
                                CRect CurrentPosition;
                                _W(CopyrightWarningText.GetWindowRect(CurrentPosition));
                                CRect Position = CurrentPosition;
                                {
                                        CClientDC Dc(CopyrightWarningText);
                                        CGdiSelector FontSelector(Dc, m_DisclaimerFont);
                                        _W(Dc.DrawText(sText, -1, Position, DT_TOP | DT_LEFT | DT_WORDBREAK | DT_CALCRECT));
                                }
                                Position.right = CurrentPosition.right;
                                CRect WindowPosition;
                                _W(GetWindowRect(WindowPosition));
                                _W(SetWindowPos(NULL, 0, 0, WindowPosition.Width(), WindowPosition.Height() + (Position.Height() - CurrentPosition.Height()), SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER));
                                static const LONG g_nSafetyHeight = 4;
                                _W(CopyrightWarningText.SetWindowPos(NULL, 0, 0, Position.Width(), Position.Height() + g_nSafetyHeight, SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER));
                        }
                }
                #pragma endregion 
                #pragma region Version Text
                CStatic ProductVersionStatic = GetDlgItem(IDC_ABOUT_PRODUCTVERSION), FileVersionStatic = GetDlgItem(IDC_ABOUT_FILEVERSION);
                CString sProductVersionFormat, sFileVersionFormat;
                ProductVersionStatic.GetWindowText(sProductVersionFormat);
                FileVersionStatic.GetWindowText(sFileVersionFormat);
                CPath sModulePath = _VersionInfoHelper::GetModulePath();
                ProductVersionStatic.SetWindowText(_VersionInfoHelper::GetVersionString(_VersionInfoHelper::GetProductVersion(sModulePath), sProductVersionFormat));
                FileVersionStatic.SetWindowText(_VersionInfoHelper::GetVersionString(_VersionInfoHelper::GetFileVersion(sModulePath), sFileVersionFormat));
                #pragma endregion 
                #pragma region Hyperlinks
                _W(m_WebsiteHyperStatic.SubclassWindow(GetDlgItem(IDC_ABOUT_WEBSITE)));
                _W(m_EmailHyperStatic.SubclassWindow(GetDlgItem(IDC_ABOUT_EMAIL)));
                #pragma endregion 
                #pragma region Caption
                #if _TRACE || defined(_WIN64)
                        {
                                CString sCaption;
                                _W(GetWindowText(sCaption));
                                sCaption.Append(_T(" // "));
                                #if _DEVELOPMENT
                                        sCaption.Append(_T("Dev "));
                                #endif // _DEVELOPMENT
                                sCaption.Append(_VersionInfoHelper::GetVersionString(_VersionInfoHelper::GetFileVersion(_VersionInfoHelper::GetModulePath())));
                                #if defined(_WIN64)
                                        sCaption.Append(_T(" (x64)"));
                                #endif // defined(_WIN64)
                                _W(SetWindowText(sCaption));
                        }
                #endif // _TRACE || defined(_WIN64)
                #pragma endregion 
                #pragma region Window Position and Focus
                _W(CenterWindow(GetParent()));
                GetDlgItem(IDOK).SetFocus();
                #pragma endregion 
                return FALSE;
        }
        LRESULT OnDestroy() throw()
        {
                _W(m_TitleFont.DeleteObject());
                _W(m_DisclaimerFont.DeleteObject());
                return 0;
        }
        LRESULT OnCommand(UINT, INT nIdentifier, HWND) throw()
        {
                _W(EndDialog(nIdentifier));
                return 0;
        }
};