1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/LibOVR/Src/Util/Util_SystemGUI.cpp	Wed Jan 14 06:51:16 2015 +0200
     1.3 @@ -0,0 +1,190 @@
     1.4 +/************************************************************************************
     1.5 +
     1.6 +Filename    :   Util_SystemGUI.cpp
     1.7 +Content     :   OS GUI access, usually for diagnostics.
     1.8 +Created     :   October 20, 2014
     1.9 +Copyright   :   Copyright 2014 Oculus VR, LLC All Rights reserved.
    1.10 +
    1.11 +Licensed under the Oculus VR Rift SDK License Version 3.2 (the "License"); 
    1.12 +you may not use the Oculus VR Rift SDK except in compliance with the License, 
    1.13 +which is provided at the time of installation or download, or which 
    1.14 +otherwise accompanies this software in either electronic or hard copy form.
    1.15 +
    1.16 +You may obtain a copy of the License at
    1.17 +
    1.18 +http://www.oculusvr.com/licenses/LICENSE-3.2 
    1.19 +
    1.20 +Unless required by applicable law or agreed to in writing, the Oculus VR SDK 
    1.21 +distributed under the License is distributed on an "AS IS" BASIS,
    1.22 +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    1.23 +See the License for the specific language governing permissions and
    1.24 +limitations under the License.
    1.25 +
    1.26 +*************************************************************************************/
    1.27 +
    1.28 +#include "Util_SystemGUI.h"
    1.29 +#include "../Kernel/OVR_UTF8Util.h"
    1.30 +#include <stdio.h>
    1.31 +
    1.32 +#if defined(OVR_OS_MS)
    1.33 +    #include <Windows.h>
    1.34 +#endif
    1.35 +
    1.36 +
    1.37 +namespace OVR { namespace Util {
    1.38 +
    1.39 +
    1.40 +#if defined(OVR_OS_MS)
    1.41 +
    1.42 +    // On Windows we implement a manual dialog message box. The reason for this is that there's no way to 
    1.43 +    // have a message box like this without either using MFC or WinForms or relying on Windows Vista+.
    1.44 +
    1.45 +    bool DisplayMessageBox(const char* pTitle, const char* pText)
    1.46 +    {
    1.47 +        #define ID_EDIT 100
    1.48 +
    1.49 +        struct Dialog
    1.50 +        {
    1.51 +            static size_t LineCount(const char* pText)
    1.52 +            {
    1.53 +                size_t count = 0;
    1.54 +                while(*pText)
    1.55 +                {
    1.56 +                    if(*pText++ == '\n')
    1.57 +                        count++;
    1.58 +                }
    1.59 +                return count;
    1.60 +            }
    1.61 +
    1.62 +            static WORD* WordUp(WORD* pIn){ return (WORD*)((((uintptr_t)pIn + 3) >> 2) << 2); }
    1.63 +
    1.64 +            static BOOL CALLBACK Proc(HWND hDlg, UINT iMsg, WPARAM wParam, LPARAM lParam)
    1.65 +            {
    1.66 +                switch (iMsg)
    1.67 +	            {
    1.68 +                    case WM_INITDIALOG:
    1.69 +                    {
    1.70 +                        HWND hWndEdit = GetDlgItem(hDlg, ID_EDIT);
    1.71 +
    1.72 +                        const char* pText = (const char*)lParam;
    1.73 +                        SetWindowTextA(hWndEdit, pText);
    1.74 +
    1.75 +                        HFONT hFont = CreateFontW(-11, 0, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, DEFAULT_PITCH, L"Courier New");
    1.76 +                        if(hFont)
    1.77 +                            SendMessage(hWndEdit, WM_SETFONT, WPARAM(hFont), TRUE);
    1.78 +
    1.79 +                        SendMessage(hWndEdit, EM_SETSEL, (WPARAM)0, (LPARAM)0);
    1.80 +
    1.81 +                        return TRUE;
    1.82 +                    }
    1.83 +
    1.84 +                    case WM_COMMAND:
    1.85 +                        switch (LOWORD(wParam))
    1.86 +                        {
    1.87 +				            case ID_EDIT:
    1.88 +                            {
    1.89 +                                // Handle messages from the edit control here.
    1.90 +                                HWND hWndEdit = GetDlgItem(hDlg, ID_EDIT);
    1.91 +                                SendMessage(hWndEdit, EM_SETSEL, (WPARAM)0, (LPARAM)0);
    1.92 +					            return TRUE;
    1.93 +                            }
    1.94 +
    1.95 +		                    case IDOK:
    1.96 +                                EndDialog(hDlg, 0);
    1.97 +			                    return TRUE;
    1.98 +		                }
    1.99 +                        break;
   1.100 +                }
   1.101 +
   1.102 +                return FALSE;
   1.103 +            }
   1.104 +        };
   1.105 +
   1.106 +
   1.107 +        char dialogTemplateMemory[1024];
   1.108 +        memset(dialogTemplateMemory, 0, sizeof(dialogTemplateMemory));
   1.109 +        DLGTEMPLATE* pDlg = (LPDLGTEMPLATE)dialogTemplateMemory;
   1.110 +
   1.111 +        const size_t textLineCount = Dialog::LineCount(pText);
   1.112 +
   1.113 +        // Sizes are in Windows dialog units, which are relative to a character size. Depends on the font and environment settings. Often the pixel size will be ~3x the dialog unit x size. Often the pixel size will be ~3x the dialog unit y size.
   1.114 +        const int    kGutterSize   =  6; // Empty border space around controls within the dialog
   1.115 +        const int    kButtonWidth  = 24;
   1.116 +        const int    kButtonHeight = 10;
   1.117 +        const int    kDialogWidth  = 600; // To do: Clip this against screen bounds.
   1.118 +        const int    kDialogHeight = ((textLineCount > 100) ? 400 : ((textLineCount > 25) ? 300 : 200));
   1.119 +
   1.120 +        // Define a dialog box.
   1.121 +        pDlg->style = WS_POPUP | WS_BORDER | WS_SYSMENU | DS_MODALFRAME | WS_CAPTION;
   1.122 +        pDlg->cdit  = 2;    // Control count
   1.123 +        pDlg->x     = 10;   // X position To do: Center the dialog.
   1.124 +        pDlg->y     = 10;
   1.125 +        pDlg->cx    = (short)kDialogWidth;
   1.126 +        pDlg->cy    = (short)kDialogHeight;
   1.127 +        WORD* pWord = (WORD*)(pDlg + 1);
   1.128 +        *pWord++ = 0;   // No menu
   1.129 +        *pWord++ = 0;   // Default dialog box class
   1.130 +
   1.131 +        WCHAR* pWchar = (WCHAR*)pWord;
   1.132 +        const size_t titleLength = strlen(pTitle);
   1.133 +        size_t wcharCount = OVR::UTF8Util::DecodeString(pWchar, pTitle, (titleLength > 128) ? 128 : titleLength);
   1.134 +        pWord += wcharCount + 1;
   1.135 +
   1.136 +        // Define an OK button.
   1.137 +        pWord = Dialog::WordUp(pWord);
   1.138 +
   1.139 +        DLGITEMTEMPLATE* pDlgItem = (DLGITEMTEMPLATE*)pWord;
   1.140 +        pDlgItem->x     = pDlg->cx - (kGutterSize + kButtonWidth);
   1.141 +        pDlgItem->y     = pDlg->cy - (kGutterSize + kButtonHeight);
   1.142 +        pDlgItem->cx    = kButtonWidth;
   1.143 +        pDlgItem->cy    = kButtonHeight;
   1.144 +        pDlgItem->id    = IDOK;
   1.145 +        pDlgItem->style = WS_CHILD | WS_VISIBLE | BS_DEFPUSHBUTTON;
   1.146 +
   1.147 +        pWord   = (WORD*)(pDlgItem + 1);
   1.148 +        *pWord++ = 0xFFFF;
   1.149 +        *pWord++ = 0x0080; // button class
   1.150 +
   1.151 +        pWchar     = (WCHAR*)pWord;
   1.152 +        pWchar[0] = 'O'; pWchar[1] = 'K'; pWchar[2] = '\0'; // Not currently localized.
   1.153 +        pWord     += 3; // OK\0
   1.154 +        *pWord++   = 0; // no creation data
   1.155 +
   1.156 +        // Define an EDIT contol.
   1.157 +        pWord = Dialog::WordUp(pWord);
   1.158 +
   1.159 +        pDlgItem = (DLGITEMTEMPLATE*)pWord;
   1.160 +        pDlgItem->x  = kGutterSize;
   1.161 +        pDlgItem->y  = kGutterSize;
   1.162 +        pDlgItem->cx = pDlg->cx - (kGutterSize + kGutterSize);
   1.163 +        pDlgItem->cy = pDlg->cy - (kGutterSize + kButtonHeight + kGutterSize + (kGutterSize / 2));
   1.164 +        pDlgItem->id = ID_EDIT;
   1.165 +        pDlgItem->style = ES_LEFT | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL | ES_WANTRETURN | ES_READONLY | WS_VSCROLL | WS_BORDER | WS_TABSTOP | WS_CHILD | WS_VISIBLE;
   1.166 +
   1.167 +        pWord = (WORD*)(pDlgItem + 1);
   1.168 +        *pWord++ = 0xFFFF;
   1.169 +        *pWord++ = 0x0081;  // edit class atom
   1.170 +        *pWord++ = 0;       // no creation data
   1.171 +
   1.172 +        LRESULT ret = DialogBoxIndirectParam(NULL, (LPDLGTEMPLATE)pDlg, NULL, (DLGPROC)Dialog::Proc, (LPARAM)pText);
   1.173 +
   1.174 +        return (ret != 0);
   1.175 +    }
   1.176 +#elif defined(OVR_OS_MAC)
   1.177 +    // For Apple we use the Objective C implementation in Util_GUI.mm
   1.178 +#else
   1.179 +    // To do.
   1.180 +    bool DisplayMessageBox(const char* pTitle, const char* pText)
   1.181 +    {
   1.182 +        printf("\n\nMessageBox\n%s\n", pTitle);
   1.183 +        printf("%s\n\n", pText);
   1.184 +        return false;
   1.185 +    }
   1.186 +#endif
   1.187 +
   1.188 +
   1.189 +} } // namespace OVR::Util
   1.190 +
   1.191 +
   1.192 +
   1.193 +