PAINT.C

/* 
 * PAINT.C 
 * GizmoBar Version 1.01 
 * 
 * Contains any code related to GizmoBar visuals, primarily 
 * the WM_PAINT handler. 
 * 
 * Copyright (c)1993-1996 Microsoft Corporation, All Rights Reserved 
 * 
 * Kraig Brockschmidt, Software Design Engineer 
 * Microsoft Systems Developer Relations 
 * 
 * Internet  :  kraigb@microsoft.com 
 * Compuserve:  >INTERNET:kraigb@microsoft.com 
 */ 
 
 
#include <windows.h> 
#include "gizmoint.h" 
 
 
//In GIZMO.C 
extern TOOLDISPLAYDATA tdd; 
 
 
/* 
 * GizmoBarPaint 
 * 
 * Purpose: 
 *  Handles all WM_PAINT messages for the control and paints either 
 *  the entire thing or just one GizmoBar button if pGB->pGizmoPaint 
 *  is non-NULL. 
 * 
 * Parameters: 
 *  hWnd            HWND Handle to the control. 
 *  pGB             PGIZMOBAR control data pointer. 
 * 
 * Return Value: 
 *  None 
 */ 
 
void GizmoBarPaint(HWND hWnd, PGIZMOBAR pGB) 
    { 
    PAINTSTRUCT ps; 
    RECT        rc; 
    HDC         hDC; 
    HBRUSH      hBr=NULL; 
    HPEN        hPen=NULL; 
 
 
    hDC=BeginPaint(hWnd, &ps); 
    GetClientRect(hWnd, &rc); 
 
    /* 
     * The only part of the frame we need to draw is the bottom line, 
     * so we inflate the rectangle such that all other parts are 
     * outside the visible region. 
     */ 
    hBr =CreateSolidBrush(GetSysColor(COLOR_BTNFACE)); 
 
    if (NULL!=hBr) 
        SelectObject(hDC, hBr); 
 
    hPen=CreatePen(PS_SOLID, 1, GetSysColor(COLOR_WINDOWFRAME)); 
 
    if (NULL!=hPen) 
        SelectObject(hDC, hPen); 
 
    Rectangle(hDC, rc.left-1, rc.top-1, rc.right+1, rc.bottom); 
 
 
    /* 
     * All that we have to do to draw the controls is start through 
     * the list, ignoring anything but buttons, and calling BTTNCUR's 
     * UIToolButtonDraw for buttons.  Since we don't even have to 
     * track positions of things, we can just use an enum. 
     */ 
    GizmoPEnum(&pGB->pGizmos, FEnumPaintGizmos, (DWORD)(LPTSTR)&ps); 
 
    //Clean up 
    EndPaint(hWnd, &ps); 
 
    if (NULL!=hBr) 
        DeleteObject(hBr); 
 
    if (NULL!=hPen) 
        DeleteObject(hPen); 
 
    return; 
    } 
 
 
 
 
 
/* 
 * FEnumPaintGizmos 
 * 
 * Purpose: 
 *  Enumeration callback for all the gizmos we know about in order to 
 *  draw them. 
 * 
 * Parameters: 
 *  pGizmo          PGIZMO to draw. 
 *  iGizmo          UINT index on the GizmoBar of this gizmo. 
 *  dw              DWORD extra data passed to GizmoPEnum, in our 
 *                  case a pointer to the PAINTSTRUCT. 
 * 
 * Return Value: 
 *  BOOL            TRUE to continue the enumeration, FALSE 
 *                  otherwise. 
 */ 
 
BOOL WINAPI FEnumPaintGizmos(PGIZMO pGizmo, UINT iGizmo, DWORD dw) 
    { 
    LPPAINTSTRUCT   pps=(LPPAINTSTRUCT)dw; 
    RECT            rc, rcI; 
 
    //Only draw those marked for repaint. 
    if ((GIZMOTYPE_DRAWN & pGizmo->iType)) 
        { 
        SetRect(&rc, pGizmo->x, pGizmo->y 
            , pGizmo->x+pGizmo->dx, pGizmo->y+pGizmo->dy); 
 
        //Only draw gizmos in the repaint area 
        if (IntersectRect(&rcI, &rc, &pps->rcPaint)) 
            { 
            UIToolButtonDrawTDD(pps->hdc, pGizmo->x, pGizmo->y 
                , pGizmo->dx, pGizmo->dy, pGizmo->hBmp 
                , pGizmo->cxImage, pGizmo->cyImage, pGizmo->iBmp 
                , (UINT)pGizmo->uState, &tdd); 
            } 
        } 
 
    return TRUE; 
    }