353 lines
8.3 KiB
C++
353 lines
8.3 KiB
C++
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/*
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**------------------------------------------------------------------------------
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** Module: Disk Cleanup Applet
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** File: textout.cpp
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**
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** Purpose: Print functions
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** Notes:
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** Mod Log: Created by Jason Cobb (2/97)
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**
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** Copyright (c)1997 Microsoft Corporation, All Rights Reserved
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**------------------------------------------------------------------------------
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*/
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/*
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**------------------------------------------------------------------------------
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** Project include files
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**------------------------------------------------------------------------------
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*/
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#include "common.h"
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#include "textout.h"
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/*
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* DEFINITIONS ________________________________________________________________
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*
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*/
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typedef struct
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{
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HWND hWnd;
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LONG style;
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TCHAR *pszText; // Buffer for text
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size_t cbMaxText; // Length of text buffer
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HFONT hf; // Current font
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HBITMAP bmp; // Off-screen bitmap for NO FLICKER
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RECT rBmp; // Size of 'bmp'
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} TextOutInfo;
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/*
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* VARIABLES __________________________________________________________________
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*
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*/
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static HINSTANCE l_hInst = NULL;
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/*
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* PROTOTYPES _________________________________________________________________
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*
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*/
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LRESULT APIENTRY TextOutProc (HWND, UINT, WPARAM, LPARAM);
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void TextOutPaint (TextOutInfo *, HDC, RECT *);
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BOOL TextOutMakeBitmap (TextOutInfo *);
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BOOL TextOutSetText (TextOutInfo *, LPCTSTR);
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void TextOutRedraw (TextOutInfo *, BOOL = TRUE);
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/*
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* ROUTINES ___________________________________________________________________
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*
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*/
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/*
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void RegisterTextOutClass (HINSTANCE hInst)
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{
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WNDCLASS wc;
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if (hInst == NULL)
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return;
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l_hInst = hInst;
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wc.style = 0;
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wc.lpfnWndProc = TextOutProc;
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wc.cbClsExtra = 0;
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wc.cbWndExtra = sizeof (void *);
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wc.hInstance = hInst;
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wc.hIcon = NULL;
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wc.hCursor = LoadCursor (NULL, IDC_ARROW);
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wc.hbrBackground = NULL;
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wc.lpszMenuName = NULL;
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wc.lpszClassName = szTextOutCLASS;
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RegisterClass (&wc);
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}
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void UnregisterTextOutClass (void)
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{
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// Unregister from windows
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if (l_hInst)
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UnregisterClass (szTextOutCLASS, l_hInst);
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l_hInst = NULL;
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}
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LRESULT APIENTRY TextOutProc (HWND hWnd, UINT msg, WPARAM wp, LPARAM lp)
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{
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TextOutInfo *ptoi;
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PAINTSTRUCT ps;
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HDC hdc;
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if (msg == WM_CREATE)
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{
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if ((ptoi = (TextOutInfo *)GlobalAlloc (GMEM_FIXED, sizeof(*ptoi))) == 0)
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{
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//OutOfMemory();
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return -1;
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}
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SetWindowLongPtr (hWnd, 0, (LPARAM)ptoi);
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ptoi->hWnd = hWnd;
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ptoi->style = ((LPCREATESTRUCT)lp)->style;
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ptoi->pszText = NULL;
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ptoi->cbMaxText = 0;
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ptoi->hf = (HFONT) GetStockObject (DEFAULT_GUI_FONT);
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ptoi->bmp = NULL;
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if (!TextOutMakeBitmap (ptoi))
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return -1;
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if (!TextOutSetText (ptoi, ((LPCREATESTRUCT)lp)->lpszName ))
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return -1;
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TextOutRedraw (ptoi);
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}
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else if ((ptoi = (TextOutInfo *)GetWindowLongPtr (hWnd, 0)) == NULL)
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{
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return DefWindowProc (hWnd, msg, wp, lp);
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}
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switch (msg)
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{
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case WM_DESTROY: if (ptoi->pszText != NULL)
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GlobalFree (ptoi->pszText);
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if (ptoi->bmp != NULL)
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DeleteObject (ptoi->bmp);
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GlobalFree (ptoi);
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SetWindowLongPtr (hWnd, 0, 0L);
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break;
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case WM_USER: TextOutRedraw (ptoi, FALSE);
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break;
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case WM_PAINT: hdc = BeginPaint (hWnd, &ps);
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TextOutPaint (ptoi, hdc, &ps.rcPaint);
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EndPaint (hWnd, &ps);
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return 0;
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break;
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case WM_SETTEXT: TextOutSetText (ptoi, (LPCTSTR)lp);
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TextOutRedraw (ptoi);
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break;
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case WM_GETFONT: return (LRESULT)ptoi->hf;
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break;
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case WM_SETFONT: if ((ptoi->hf = (HFONT)wp) == NULL)
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{
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ptoi->hf = (HFONT) GetStockObject (DEFAULT_GUI_FONT);
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}
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if (LOWORD(lp) != 0)
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{
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TextOutRedraw (ptoi);
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}
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break;
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case WM_SIZE: TextOutMakeBitmap (ptoi);
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break;
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case WM_ERASEBKGND:
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return (LRESULT)1;
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break;
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}
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return DefWindowProc (hWnd, msg, wp, lp);
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}
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void TextOutPaint (TextOutInfo *ptoi, HDC hdcTrg, RECT *pr)
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{
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RECT r;
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HDC hdcSrc;
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HBITMAP bmpSrc;
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if (ptoi->bmp == NULL) // No bitmap?
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return; // No paint.
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if (pr == NULL)
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{
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GetClientRect (ptoi->hWnd, pr = &r);
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}
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hdcSrc = CreateCompatibleDC (hdcTrg);
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bmpSrc = (HBITMAP) SelectObject (hdcSrc, (HGDIOBJ)ptoi->bmp);
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BitBlt (hdcTrg, pr->left, pr->top, pr->right -pr->left, pr->bottom -pr->top,
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hdcSrc, pr->left, pr->top, SRCCOPY);
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SelectObject (hdcSrc, (HGDIOBJ)bmpSrc);
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DeleteDC (hdcSrc);
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}
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BOOL TextOutMakeBitmap (TextOutInfo *ptoi)
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{
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HDC hdc, hdcMem;
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RECT r;
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GetClientRect (ptoi->hWnd, &r);
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if (ptoi->bmp != NULL)
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{
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if ( ((ptoi->rBmp.right - ptoi->rBmp.left) > (r.right - r.left)) ||
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((ptoi->rBmp.bottom - ptoi->rBmp.top) > (r.bottom - r.top)) )
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{
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DeleteObject (ptoi->bmp);
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ptoi->bmp = NULL;
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}
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}
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if (ptoi->bmp == NULL)
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{
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hdc = GetDC (ptoi->hWnd);
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hdcMem = CreateCompatibleDC (hdc);
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ptoi->bmp = CreateCompatibleBitmap (hdc, r.right, r.bottom);
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ptoi->rBmp = r;
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DeleteDC (hdcMem);
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ReleaseDC (ptoi->hWnd, hdc);
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}
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if (ptoi->bmp == NULL)
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{
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//OutOfMemory();
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return FALSE;
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}
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return TRUE;
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}
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BOOL TextOutSetText (TextOutInfo *ptoi, LPCTSTR psz)
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{
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size_t cb;
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if (psz == NULL)
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{
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if (ptoi->pszText != NULL)
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ptoi->pszText[0] = 0;
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return TRUE;
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}
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cb = 1+ lstrlen(psz);
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if (cb > (ptoi->cbMaxText))
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{
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if (ptoi->pszText != NULL)
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{
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GlobalFree (ptoi->pszText);
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ptoi->pszText = NULL;
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}
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if ((ptoi->pszText = (TCHAR *)GlobalAlloc (GMEM_FIXED, cb * sizeof( TCHAR ))) == NULL)
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{
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ptoi->cbMaxText = 0;
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//OutOfMemory();
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return FALSE;
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}
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ptoi->cbMaxText = cb;
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}
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StrCpy(ptoi->pszText, psz);
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return TRUE;
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}
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void TextOutRedraw (TextOutInfo *ptoi, BOOL fRepaint)
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{
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HBRUSH hbr;
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HDC hdc, hdcMem;
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HBITMAP bmpOld;
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RECT r;
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WPARAM wp;
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LPARAM lp;
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HFONT hfOld = NULL;
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if (ptoi->bmp == NULL)
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return;
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hdc = GetDC (ptoi->hWnd);
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hdcMem = CreateCompatibleDC (hdc);
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bmpOld = (HBITMAP) SelectObject (hdcMem, (HGDIOBJ)ptoi->bmp);
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wp = (WPARAM)hdcMem;
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lp = (LPARAM)ptoi->hWnd;
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hbr = (HBRUSH)SendMessage (GetParent(ptoi->hWnd), WM_CTLCOLORSTATIC, wp,lp);
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if (hbr == NULL)
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{
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SetTextColor (hdc, GetSysColor (COLOR_BTNTEXT));
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SetBkColor (hdc, GetSysColor (COLOR_BTNFACE));
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hbr = CreateSolidBrush (GetSysColor (COLOR_BTNFACE));
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}
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GetClientRect (ptoi->hWnd, &r);
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FillRect (hdcMem, &r, hbr);
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if (ptoi->pszText != NULL)
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{
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if (ptoi->hf != NULL)
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hfOld = (HFONT) SelectObject (hdcMem, ptoi->hf);
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UINT fDrawFlags = DT_EXPANDTABS | DT_WORDBREAK;
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if (ptoi->style & SS_RIGHT)
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fDrawFlags |= DT_RIGHT;
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else if (ptoi->style & SS_CENTER)
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fDrawFlags |= DT_CENTER;
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else
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fDrawFlags |= DT_LEFT;
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DrawText ( hdcMem,
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ptoi->pszText,
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lstrlen(ptoi->pszText),
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&r,
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fDrawFlags );
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if (hfOld != NULL)
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SelectObject (hdcMem, hfOld);
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}
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DeleteObject (hbr);
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SelectObject (hdcMem, bmpOld);
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DeleteDC (hdcMem);
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ReleaseDC (ptoi->hWnd, hdc);
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if (fRepaint)
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{
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InvalidateRect (ptoi->hWnd, NULL, TRUE);
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UpdateWindow (ptoi->hWnd);
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}
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}
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*/
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