/*++

Copyright (c) 1990-1998 Microsoft Corporation, All Rights Reserved

Module Name:

    UIGUIDE.C
    
++*/

/**********************************************************************/
#include "windows.h"
#include "immdev.h"
#include "fakeime.h"

/**********************************************************************/
/*                                                                    */
/* GuideWndProc()                                                     */
/* IME UI window procedure                                            */
/*                                                                    */
/**********************************************************************/
LRESULT CALLBACK GuideWndProc( hWnd, message, wParam, lParam )
HWND hWnd;
UINT message;
WPARAM wParam;
LPARAM lParam;
{
    PAINTSTRUCT ps;
    HWND hUIWnd;
    HDC hDC;
    HBITMAP hbmpGuide;
    RECT rc;

    switch (message)
    {
        case WM_UI_HIDE:
            ShowWindow(hWnd, SW_HIDE);
            break;

        case WM_UI_UPDATE:
            InvalidateRect(hWnd,NULL,FALSE);
            break;

        case WM_PAINT:
            hDC = BeginPaint(hWnd,&ps);
            PaintGuide(hWnd,hDC,NULL,0);
            EndPaint(hWnd,&ps);
            break;

        case WM_MOUSEMOVE:
        case WM_SETCURSOR:
        case WM_LBUTTONUP:
        case WM_RBUTTONUP:
            ButtonGuide(hWnd,message,wParam,lParam);
            if ((message == WM_SETCURSOR) &&
                (HIWORD(lParam) != WM_LBUTTONDOWN) &&
                (HIWORD(lParam) != WM_RBUTTONDOWN)) 
                return DefWindowProc(hWnd,message,wParam,lParam);
            if ((message == WM_LBUTTONUP) || (message == WM_RBUTTONUP))
            {
                SetWindowLong(hWnd,FIGWL_MOUSE,0L);
                SetWindowLong(hWnd,FIGWL_PUSHSTATUS,0L);
            }
            break;

        case WM_MOVE:
            hUIWnd = (HWND)GetWindowLongPtr(hWnd,FIGWL_SVRWND);
            if (IsWindow(hUIWnd))
                SendMessage(hUIWnd,WM_UI_GUIDEMOVE,wParam,lParam);
            break;

        case WM_CREATE:
            hbmpGuide = LoadBitmap(hInst,TEXT("CLOSEBMP"));
            SetWindowLongPtr(hWnd,FIGWL_CLOSEBMP,(LONG_PTR)hbmpGuide);
            GetClientRect(hWnd,&rc);
            break;

        case WM_DESTROY:
            hbmpGuide = (HBITMAP)GetWindowLongPtr(hWnd,FIGWL_CLOSEBMP);
            DeleteObject(hbmpGuide);
            break;

        default:
            if (!MyIsIMEMessage(message))
                return DefWindowProc(hWnd,message,wParam,lParam);
            break;
    }
    return 0;
}

/**********************************************************************/
/*                                                                    */
/* CheckPushedGuide()                                                 */
/*                                                                    */
/**********************************************************************/
DWORD PASCAL CheckPushedGuide( HWND hGuideWnd, LPPOINT lppt)
{
    POINT pt;
    RECT rc;

    if (lppt)
    {
        pt = *lppt;
        ScreenToClient(hGuideWnd,&pt);
        GetClientRect(hGuideWnd,&rc);
        if (!PtInRect(&rc,pt))
            return 0;

        rc.left = rc.right-STCLBT_DX-2; 
        rc.top = STCLBT_Y; 
        rc.right = rc.left + STCLBT_DX; 
        rc.bottom = rc.top + STCLBT_DY; 
        if (PtInRect(&rc,pt))
            return PUSHED_STATUS_CLOSE;
    }
    return 0;
}

/**********************************************************************/
/*                                                                    */
/* PaintGuide()                                                       */
/*                                                                    */
/**********************************************************************/
void PASCAL PaintGuide( HWND hGuideWnd , HDC hDC, LPPOINT lppt, DWORD dwPushedGuide)
{
    HIMC hIMC;
    HDC hMemDC;
    HBITMAP hbmpOld;
    HWND hSvrWnd;
    HANDLE hGLStr;
    LPTSTR lpGLStr;
    DWORD dwLevel;
    DWORD dwSize;

    hSvrWnd = (HWND)GetWindowLongPtr(hGuideWnd,FIGWL_SVRWND);

    if (hIMC = (HIMC)GetWindowLongPtr(hSvrWnd,IMMGWLP_IMC))
    {
        HBITMAP hbmpGuide;
        HBRUSH hOldBrush,hBrush;
        int nCyCap = GetSystemMetrics(SM_CYSMCAPTION);
        RECT rc;

        hMemDC = CreateCompatibleDC(hDC);

        // Paint Caption.
        hBrush = CreateSolidBrush(GetSysColor(COLOR_ACTIVECAPTION));
        hOldBrush = SelectObject(hDC,hBrush);
        GetClientRect(hGuideWnd,&rc);
        //rc.top = rc.left = 0;
        //rc.right = BTX*3;
        rc.bottom = nCyCap;
        FillRect(hDC,&rc,hBrush);
        SelectObject(hDC,hOldBrush);
        DeleteObject(hBrush);

        // Paint CloseButton.
        hbmpGuide = (HBITMAP)GetWindowLongPtr(hGuideWnd,FIGWL_CLOSEBMP);
        hbmpOld = SelectObject(hMemDC,hbmpGuide);

        if (!(dwPushedGuide & PUSHED_STATUS_CLOSE))
            BitBlt(hDC,rc.right-STCLBT_DX-2,STCLBT_Y,STCLBT_DX,STCLBT_DY,
                   hMemDC,0,0,SRCCOPY);
        else
            BitBlt(hDC,rc.right-STCLBT_DX-2,STCLBT_Y,STCLBT_DX,STCLBT_DY,
                   hMemDC,STCLBT_DX,0,SRCCOPY);



        if (dwLevel = ImmGetGuideLine(hIMC,GGL_LEVEL,NULL,0))
        {
            dwSize = ImmGetGuideLine(hIMC,GGL_STRING,NULL,0) + 1;
            if ((dwSize > 1) && (hGLStr = GlobalAlloc(GHND,dwSize)))
            {
                if (lpGLStr = (LPTSTR)GlobalLock(hGLStr))
                {
                    COLORREF rgb = 0;
                    HBRUSH hbrLGR = GetStockObject(LTGRAY_BRUSH);
                    HBRUSH hbr;


                    hbr = SelectObject(hDC,hbrLGR);
                    GetClientRect(hGuideWnd,&rc);
                    PatBlt(hDC,0,nCyCap,rc.right,rc.bottom-nCyCap,PATCOPY);
                    SelectObject(hDC,hbr);

                    switch (dwLevel)
                    {
                        case GL_LEVEL_FATAL:
                        case GL_LEVEL_ERROR:
                            rgb = RGB(255,0,0);
                            break;
                        case GL_LEVEL_WARNING:
                            rgb = RGB(0,0,255);
                            break;
                        case GL_LEVEL_INFORMATION:
                        default:
                            rgb = RGB(0,0,0);
                            break;
                    }

                    if (dwSize = ImmGetGuideLine(hIMC,GGL_STRING,lpGLStr,dwSize))
                    {
                        SetTextColor(hDC,rgb);
                        SetBkMode(hDC,TRANSPARENT);
                        TextOut(hDC,0,nCyCap,lpGLStr,dwSize);
                    }
                    GlobalUnlock(hGLStr);
                }
                GlobalFree(hGLStr);
            }
        }

        SelectObject(hMemDC,hbmpOld);
        DeleteDC(hMemDC);
    }
}

/**********************************************************************/
/*                                                                    */
/* ButtonGuide(hGuideWnd,message,wParam,lParam)                       */
/*                                                                    */
/**********************************************************************/
void PASCAL ButtonGuide( HWND hGuideWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    POINT     pt;
    HDC hDC;
    DWORD dwMouse;
    DWORD dwPushedGuide;
    DWORD dwTemp;
    HIMC hIMC;
    HWND hSvrWnd;
    static    POINT ptdif;
    static    RECT drc;
    static    RECT rc;
    static    DWORD dwCurrentPushedGuide;

    hDC = GetDC(hGuideWnd);
    switch (message)
    {
        case WM_SETCURSOR:
            if ( HIWORD(lParam) == WM_LBUTTONDOWN
                || HIWORD(lParam) == WM_RBUTTONDOWN ) 
            {
                GetCursorPos( &pt );
                SetCapture(hGuideWnd);
                GetWindowRect(hGuideWnd,&drc);
                ptdif.x = pt.x - drc.left;
                ptdif.y = pt.y - drc.top;
                rc = drc;
                rc.right -= rc.left;
                rc.bottom -= rc.top;
                SetWindowLong(hGuideWnd,FIGWL_MOUSE,FIM_CAPUTURED);
                SetWindowLong(hGuideWnd, FIGWL_PUSHSTATUS, dwPushedGuide = CheckPushedGuide(hGuideWnd,&pt));
                PaintGuide(hGuideWnd,hDC,&pt, dwPushedGuide);
                dwCurrentPushedGuide = dwPushedGuide;
            }
            break;

        case WM_MOUSEMOVE:
            dwMouse = GetWindowLong(hGuideWnd,FIGWL_MOUSE);
            if (!(dwPushedGuide = GetWindowLong(hGuideWnd, FIGWL_PUSHSTATUS)))
            {
                if (dwMouse & FIM_MOVED)
                {
                    DrawUIBorder(&drc);
                    GetCursorPos( &pt );
                    drc.left   = pt.x - ptdif.x;
                    drc.top    = pt.y - ptdif.y;
                    drc.right  = drc.left + rc.right;
                    drc.bottom = drc.top + rc.bottom;
                    DrawUIBorder(&drc);
                }
                else if (dwMouse & FIM_CAPUTURED)
                {
                    DrawUIBorder(&drc);
                    SetWindowLong(hGuideWnd,FIGWL_MOUSE,dwMouse | FIM_MOVED);
                }
            }
            else
            {
                GetCursorPos(&pt);
                dwTemp = CheckPushedGuide(hGuideWnd,&pt);
                if ((dwTemp ^ dwCurrentPushedGuide) & dwPushedGuide)
                    PaintGuide(hGuideWnd,hDC,&pt, dwPushedGuide & dwTemp);
                dwCurrentPushedGuide = dwTemp;
            }
            break;

        case WM_LBUTTONUP:
        case WM_RBUTTONUP:
            dwMouse = GetWindowLong(hGuideWnd,FIGWL_MOUSE);
            if (dwMouse & FIM_CAPUTURED)
            {
                ReleaseCapture();
                if (dwMouse & FIM_MOVED)
                {
                    DrawUIBorder(&drc);
                    GetCursorPos( &pt );
                    MoveWindow(hGuideWnd,pt.x - ptdif.x,
                                    pt.y - ptdif.y,
                                    rc.right,
                                    rc.bottom,TRUE);
                }
            }
            hSvrWnd = (HWND)GetWindowLongPtr(hGuideWnd,FIGWL_SVRWND);

            if (hIMC = (HIMC)GetWindowLongPtr(hSvrWnd,IMMGWLP_IMC))
            {
                GetCursorPos(&pt);
                dwPushedGuide = GetWindowLong(hGuideWnd, FIGWL_PUSHSTATUS);
                dwPushedGuide &= CheckPushedGuide(hGuideWnd,&pt);
                if (!dwPushedGuide) {
                } else if (dwPushedGuide == PUSHED_STATUS_CLOSE) {
                    PostMessage(hGuideWnd,WM_UI_HIDE,0,0);
                }
            }
            PaintGuide(hGuideWnd,hDC,NULL,0);
            break;
    }
    ReleaseDC(hGuideWnd,hDC);
}
/**********************************************************************/
/*                                                                    */
/* UpdateGuideWindow(lpUIExtra)                                      */
/*                                                                    */
/**********************************************************************/
void PASCAL UpdateGuideWindow(LPUIEXTRA lpUIExtra)
{
    if (IsWindow(lpUIExtra->uiGuide.hWnd))
        SendMessage(lpUIExtra->uiGuide.hWnd,WM_UI_UPDATE,0,0L);
}