win32ceguirendererselector.cpp

cegui界面库

/***********************************************************************
    filename:   Win32CEGuiRendererSelector.cpp
    created:    24/9/2004
    author:     Paul D Turner
*************************************************************************/
/***************************************************************************
 *   Copyright (C) 2004 - 2006 Paul D Turner & The CEGUI Development Team
 *
 *   Permission is hereby granted, free of charge, to any person obtaining
 *   a copy of this software and associated documentation files (the
 *   "Software"), to deal in the Software without restriction, including
 *   without limitation the rights to use, copy, modify, merge, publish,
 *   distribute, sublicense, and/or sell copies of the Software, and to
 *   permit persons to whom the Software is furnished to do so, subject to
 *   the following conditions:
 *
 *   The above copyright notice and this permission notice shall be
 *   included in all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 *   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 *   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *   OTHER DEALINGS IN THE SOFTWARE.
 ***************************************************************************/
#include "Win32CEGuiRendererSelector.h"
#include <TCHAR.H>


/*************************************************************************
    Constructor
*************************************************************************/
Win32CEGuiRendererSelector::Win32CEGuiRendererSelector() :
        d_template(createDialogTemplate())
{}


/*************************************************************************
    Destructor
*************************************************************************/
Win32CEGuiRendererSelector::~Win32CEGuiRendererSelector()
{
    if (d_template)
    {
        LocalFree(d_template);
    }
}


/*************************************************************************
    Display the dialog and wait for user
*************************************************************************/
bool Win32CEGuiRendererSelector::inkokeDialog()
{
    if (d_template)
    {
        // show dialog & return result
        return (1 == DialogBoxIndirectParam(GetModuleHandle(0), d_template, 0, Win32CEGuiRendererSelector::dialogProcedure, reinterpret_cast<LPARAM>(this)));
    }

    return false;
}


/*************************************************************************
    Create Win32 dialog template
*************************************************************************/
LPDLGTEMPLATE Win32CEGuiRendererSelector::createDialogTemplate()
{
    SIZE_T  templateBufferSize = 1024;

    // allocate memory to hold the template we're going to construct
    LPDLGTEMPLATE dialogTemplate = static_cast<LPDLGTEMPLATE>(LocalAlloc(LPTR, templateBufferSize));

    // if allocation was successful
    if (dialogTemplate)
    {
        LPDLGITEMTEMPLATE item;
        LPBYTE buffer = reinterpret_cast<LPBYTE>(dialogTemplate);

        //
        // build template header
        //
        LPDLGTEMPLATE header    = reinterpret_cast<LPDLGTEMPLATE>(buffer);
        header->style           = DS_MODALFRAME|WS_CAPTION|WS_VISIBLE;
        header->dwExtendedStyle = 0;
        header->cdit            = 6;
        header->x               = (short)0x8000;
        header->y               = (short)0x8000;
        header->cx              = 150;
        header->cy              = 75;

        // advance buffer pointer
        buffer += sizeof(DLGTEMPLATE);

        //
        // Write null menu and class names
        //
        *reinterpret_cast<LPWORD>(buffer) = 0;
        buffer += sizeof(WORD);

        *reinterpret_cast<LPWORD>(buffer) = 0;
        buffer += sizeof(WORD);

        //
        // Write dialog title
        //
        int charCount = copyAnsiToWideChar(buffer, TEXT("CEGui - Renderer Selection"));
        buffer += charCount * sizeof(WORD);

        // align pointer for first item
        buffer = alignPointer(buffer);

        //
        // Buttons area static frame
        //
        item = reinterpret_cast<LPDLGITEMTEMPLATE>(buffer);
        item->style             = BS_GROUPBOX|WS_VISIBLE|WS_CHILD;
        item->dwExtendedStyle   = 0;
        item->x                 = 5;
        item->y                 = 48;
        item->cx                = 140;
        item->cy                = 22;
        item->id                = 0;

        // advance buffer pointer
        buffer += sizeof(DLGITEMTEMPLATE);

        // write class information
        *reinterpret_cast<LPWORD>(buffer) = 0xFFFF;
        buffer += sizeof(WORD);

        *reinterpret_cast<LPWORD>(buffer) = 0x0080;
        buffer += sizeof(WORD);

        // write caption
        charCount = copyAnsiToWideChar(buffer, TEXT(""));
        buffer += charCount * sizeof(WORD);

        // no creation data
        *reinterpret_cast<LPWORD>(buffer) = 0x0000;
        buffer += sizeof(WORD);

        // align pointer for next item
        buffer = alignPointer(buffer);

        //
        // Selection area static frame
        //
        item = reinterpret_cast<LPDLGITEMTEMPLATE>(buffer);
        item->style             = BS_GROUPBOX|WS_VISIBLE|WS_CHILD;
        item->dwExtendedStyle   = 0;
        item->x                 = 5;
        item->y                 = 0;
        item->cx                = 140;
        item->cy                = 50;
        item->id                = 0;

        // advance buffer pointer
        buffer += sizeof(DLGITEMTEMPLATE);

        // write class information
        *reinterpret_cast<LPWORD>(buffer) = 0xFFFF;
        buffer += sizeof(WORD);

        *reinterpret_cast<LPWORD>(buffer) = 0x0080;
        buffer += sizeof(WORD);

        // write caption
        charCount = copyAnsiToWideChar(buffer, TEXT(""));
        buffer += charCount * sizeof(WORD);

        // no creation data
        *reinterpret_cast<LPWORD>(buffer) = 0x0000;
        buffer += sizeof(WORD);

        // align pointer for next item
        buffer = alignPointer(buffer);

        //
        // Okay button
        //
        item = reinterpret_cast<LPDLGITEMTEMPLATE>(buffer);
        item->style             = BS_DEFPUSHBUTTON|WS_VISIBLE|WS_CHILD|WS_TABSTOP;
        item->dwExtendedStyle   = 0;
        item->x                 = 9;
        item->y                 = 55;
        item->cx                = 40;
        item->cy                = 12;
        item->id                = IDOK;

        // advance buffer pointer
        buffer += sizeof(DLGITEMTEMPLATE);

        // write class information
        *reinterpret_cast<LPWORD>(buffer) = 0xFFFF;
        buffer += sizeof(WORD);

        *reinterpret_cast<LPWORD>(buffer) = 0x0080;
        buffer += sizeof(WORD);

        // write caption
        charCount = copyAnsiToWideChar(buffer, TEXT("Go!"));
        buffer += charCount * sizeof(WORD);

        // no creation data
        *reinterpret_cast<LPWORD>(buffer) = 0x0000;
        buffer += sizeof(WORD);

        // align pointer for next item
        buffer = alignPointer(buffer);

        //
        // Cancel button
        //
        item = reinterpret_cast<LPDLGITEMTEMPLATE>(buffer);
        item->style             = BS_PUSHBUTTON|WS_VISIBLE|WS_CHILD|WS_TABSTOP;
        item->dwExtendedStyle   = 0;
        item->x                 = 101;
        item->y                 = 55;
        item->cx                = 40;
        item->cy                = 12;
        item->id                = IDCANCEL;

        // advance buffer pointer
        buffer += sizeof(DLGITEMTEMPLATE);