// Copyright (C) 2003-2008 Dolphin Project.

// 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, version 2.0.

// 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 2.0 for more details.

// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/

// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/

#include <stdio.h>
#include <stdlib.h>

#include "Misc.h"

namespace W32Util
{
    //shamelessly taken from http://www.catch22.org.uk/tuts/tips.asp
    void CenterWindow(HWND hwnd)
    {
        HWND hwndParent;
        RECT rect, rectP;
        int width, height;      
        int screenwidth, screenheight;
        int x, y;

        //make the window relative to its parent
        hwndParent = GetParent(hwnd);
        if (!hwndParent)
            return;

        GetWindowRect(hwnd, &rect);
        GetWindowRect(hwndParent, &rectP);
        
        width  = rect.right  - rect.left;
        height = rect.bottom - rect.top;

        x = ((rectP.right-rectP.left) -  width) / 2 + rectP.left;
        y = ((rectP.bottom-rectP.top) - height) / 2 + rectP.top;

        screenwidth  = GetSystemMetrics(SM_CXSCREEN);
        screenheight = GetSystemMetrics(SM_CYSCREEN);
    
        //make sure that the dialog box never moves outside of
        //the screen
        if (x < 0) x = 0;
        if (y < 0) y = 0;
        if (x + width  > screenwidth)  x = screenwidth  - width;
        if (y + height > screenheight) y = screenheight - height;

        MoveWindow(hwnd, x, y, width, height, FALSE);
    }

    HBITMAP CreateBitmapFromARGB(HWND someHwnd, DWORD *image, int w, int h)
    {
        BITMAPINFO *bitmap_header;
        static char bitmapbuffer[sizeof(BITMAPINFO)+16];
        memset(bitmapbuffer,0,sizeof(BITMAPINFO)+16);
        bitmap_header=(BITMAPINFO *)bitmapbuffer;
        bitmap_header->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
        bitmap_header->bmiHeader.biPlanes = 1;
        bitmap_header->bmiHeader.biBitCount = 32;
        bitmap_header->bmiHeader.biCompression = BI_RGB;
        bitmap_header->bmiHeader.biWidth = w;
        bitmap_header->bmiHeader.biHeight = -h;

        ((unsigned long *)bitmap_header->bmiColors)[0] = 0x00FF0000;
        ((unsigned long *)bitmap_header->bmiColors)[1] = 0x0000FF00;
        ((unsigned long *)bitmap_header->bmiColors)[2] = 0x000000FF;

        HDC dc = GetDC(someHwnd);
        HBITMAP bitmap = CreateDIBitmap(dc,&bitmap_header->bmiHeader,CBM_INIT,image,bitmap_header,DIB_RGB_COLORS);
        ReleaseDC(someHwnd,dc);
        return bitmap;
    }	

    void NiceSizeFormat(size_t size, char *out)
    {
        char *sizes[] = {"b","KB","MB","GB","TB","PB","EB"};
        int s = 0;
        int frac = 0;
        while (size>1024)
        {
            s++;
            frac = (int)size & 1023;
            size /= 1024;
        }
        float f = (float)size + ((float)frac / 1024.0f);
        sprintf(out,"%3.1f %s",f,sizes[s]);
    }
    BOOL CopyTextToClipboard(HWND hwnd, TCHAR *text)
    {
        OpenClipboard(hwnd);
        EmptyClipboard();
        HANDLE hglbCopy = GlobalAlloc(GMEM_MOVEABLE, (strlen(text) + 1) * sizeof(TCHAR)); 
        if (hglbCopy == NULL) 
        { 
            CloseClipboard(); 
            return FALSE; 
        } 

        // Lock the handle and copy the text to the buffer. 

        TCHAR *lptstrCopy = (TCHAR *)GlobalLock(hglbCopy); 
        strcpy(lptstrCopy, text); 
        lptstrCopy[strlen(text)] = (TCHAR) 0;    // null character 
        GlobalUnlock(hglbCopy); 
        SetClipboardData(CF_TEXT,hglbCopy);
        CloseClipboard();
        return TRUE;
    }
}

void SysMessage(char *fmt, ...)
{
    va_list list;
    char tmp[512];

    va_start(list,fmt);
    vsprintf(tmp,fmt,list);
    va_end(list);
    MessageBox(0, tmp, "Video-Plugin", 0);
}