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/* * Copyright (C) 1999, 2000, Wei Yongming. * Portions Copyright (c) 2000 Greg Haerr <greg@censoft.com> * * Edit control for Microwindows win32 api. */ /* ** This library is free software; you can redistribute it and/or ** modify it under the terms of the GNU Library General Public ** License as published by the Free Software Foundation; either ** version 2 of the License, or (at your option) any later version. ** ** This library 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 ** Library General Public License for more details. ** ** You should have received a copy of the GNU Library General Public ** License along with this library; if not, write to the Free ** Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, ** MA 02111-1307, USA */ /* ** Alternatively, the contents of this file may be used under the terms ** of the Mozilla Public License (the "MPL License") in which case the ** provisions of the MPL License are applicable instead of those above. */ /* Note: ** Although there was a version by Zhao Jianghua, this version of ** EDIT control is written by Wei Yongming from scratch. ** ** Create date: 1999/8/26 ** ** Modify records: ** ** Who When Where For What Status **----------------------------------------------------------------------------- ** WEI Yongming 2000/02/24 Tsinghua Add MPL License Finished ** Kevin Tseng 2000/05/30 gv port to microwin ported ** Greg Haerr 2000/06/16 Utah 3d look, bug fixes Finished ** Kevin Tseng 2000/06/22 gv port to mw-nanox ported ** ** TODO: ** * Selection. ** * Undo. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #define MWINCLUDECOLORS #include "windows.h" /* windef.h, winuser.h */ #include "wintools.h" #include "device.h" /* GdGetTextSize */ #define USE_BIG5 #if 0 #define DEFAULT_FONT DEFAULT_GUI_FONT #endif #define DEFAULT_FONT SYSTEM_FIXED_FONT #define WIDTH_EDIT_BORDER 2 #define MARGIN_EDIT_LEFT 1 #define MARGIN_EDIT_TOP 1 #define MARGIN_EDIT_RIGHT 2 #define MARGIN_EDIT_BOTTOM 1 #define LEN_SLEDIT_BUFFER 3000 #define LEN_SLEDIT_UNDOBUFFER 1024 #define EST_FOCUSED 0x00000001L #define EST_MODIFY 0x00000002L #define EST_READONLY 0x00000004L #define EST_REPLACE 0x00000008L #define EDIT_OP_NONE 0x00 #define EDIT_OP_DELETE 0x01 #define EDIT_OP_INSERT 0x02 #define EDIT_OP_REPLACE 0x03 typedef struct tagSLEDITDATA { HFONT hFont; /* hFont used */ int bufferLen; /* length of buffer */ int dataEnd; /* data end position */ int editPos; /* current edit position */ int caretOff; /* caret offset in box */ int startPos; /* start display position */ int selStart; /* selection start position */ int selEnd; /* selection end position */ int passwdChar; /* password character */ int leftMargin; /* left margin */ int topMargin; /* top margin */ int rightMargin; /* right margin */ int bottomMargin; /* bottom margin */ int hardLimit; /* hard limit */ int lastOp; /* last operation */ int lastPos; /* last operation position */ int affectedLen; /* affected len of last operation */ int undoBufferLen; /* undo buffer len */ char undoBuffer [LEN_SLEDIT_UNDOBUFFER]; /* Undo buffer; */ char buffer [LEN_SLEDIT_BUFFER]; /* buffer */ } SLEDITDATA, *PSLEDITDATA; static LRESULT CALLBACK SLEditCtrlProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); static int GetSysCharHeight (HWND hwnd) { #ifndef USE_BIG5 HDC hdc; int xw, xh, xb; hdc = GetDC(hwnd); SelectObject(hdc, GetStockObject(DEFAULT_FONT)); GdSetFont(hdc->font->pfont); GdGetTextSize(hdc->font->pfont,"X",1, &xw,&xh,&xb,MWTF_ASCII); ReleaseDC(hwnd,hdc); return xh; #else return 12; #endif } static int GetSysCharWidth (HWND hwnd) { #ifndef USE_BIG5 HDC hdc; int xw, xh, xb; hdc = GetDC(hwnd); SelectObject(hdc, GetStockObject(DEFAULT_FONT)); GdSetFont(hdc->font->pfont); GdGetTextSize(hdc->font->pfont,"X",1, &xw,&xh,&xb,MWTF_ASCII); ReleaseDC(hwnd,hdc); return xw; #else return 6; #endif } static int GetSysCCharWidth (HWND hwnd) { return (2*GetSysCharWidth(hwnd)); } int WINAPI MwRegisterEditControl(HINSTANCE hInstance) { WNDCLASS wc; wc.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_GLOBALCLASS; wc.lpfnWndProc = (WNDPROC)SLEditCtrlProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = NULL; wc.hCursor = 0; /*LoadCursor(NULL, IDC_ARROW);*/ wc.hbrBackground= GetStockObject(WHITE_BRUSH); wc.lpszMenuName = NULL; wc.lpszClassName= "EDIT"; return RegisterClass(&wc); } static int edtGetOutWidth (const HWND pCtrl) { return pCtrl->clirect.right - pCtrl->clirect.left - ((PSLEDITDATA)(pCtrl->userdata2))->leftMargin - ((PSLEDITDATA)(pCtrl->userdata2))->rightMargin; } static int edtGetStartDispPosAtEnd (const HWND pCtrl, PSLEDITDATA pSLEditData) { int nOutWidth = edtGetOutWidth (pCtrl); int endPos = pSLEditData->dataEnd; int newStartPos = pSLEditData->startPos; const char* buffer = pSLEditData->buffer; while (TRUE) { if ((endPos - newStartPos) * GetSysCharWidth (pCtrl) < nOutWidth) break; /* FIXME: #ifdef GB2312?*/ if ((BYTE)buffer [newStartPos] > 0xA0) /* 1st:gb:a1-f7,big5:a1-f9 */ { newStartPos ++; if (newStartPos < pSLEditData->dataEnd) { #ifndef USE_BIG5 if ((BYTE)buffer [newStartPos] > 0xA0) #else /* 2nd:gb:a1-fe,big5:40-7e,a1-fe */ if ( ((BYTE)buffer [newStartPos] >= 0x40 && (BYTE)buffer[newStartPos] <= 0x7e) || ((BYTE)buffer [newStartPos] >= 0xa1 && (BYTE)buffer[newStartPos] <= 0xfe)) #endif newStartPos ++; } } else newStartPos ++; } return newStartPos; } static int edtGetDispLen (const HWND pCtrl) { int i, n = 0; int nOutWidth = edtGetOutWidth (pCtrl); int nTextWidth = 0; PSLEDITDATA pSLEditData = (PSLEDITDATA)(pCtrl->userdata2); const char* buffer = pSLEditData->buffer; for (i = pSLEditData->startPos; i < pSLEditData->dataEnd; i++) { /* FIXME #ifdef GB2312?*/ if ((BYTE)buffer [i] > 0xA0) /* st:gb:a1-f7,big5:a1-f9 */ { i++; if (i < pSLEditData->dataEnd) { #ifndef USE_BIG5 if ((BYTE)buffer [i] > 0xA0) /* 2nd:gb:a1-fe,big5:40-7e,a1-fe */ #else /* 2nd:gb:a1-fe,big5:40-7e,a1-fe */ if ( ((BYTE)buffer [i] >= 0x40 && (BYTE)buffer[i] <= 0x7e) || ((BYTE)buffer [i] >= 0xa1 && (BYTE)buffer[i] <= 0xfe)) #endif { nTextWidth += GetSysCCharWidth (pCtrl); n += 2; } else i--; } else { nTextWidth += GetSysCharWidth (pCtrl); n++; } } else { nTextWidth += GetSysCharWidth (pCtrl); n++; } if (nTextWidth > nOutWidth) break; } return n; } static int edtGetOffset (HWND hwnd,const SLEDITDATA* pSLEditData, int x) { int i; int newOff = 0; int nTextWidth = 0; const char* buffer = pSLEditData->buffer; x -= pSLEditData->leftMargin; for (i = pSLEditData->startPos; i < pSLEditData->dataEnd; i++) { if ((nTextWidth + (GetSysCharWidth(hwnd) >> 1)) >= x) break; /* FIXME #ifdef GB2312?*/ if ((BYTE)buffer [i] > 0xA0) /* 1st:gb:a1-f7,big5:a1-f9 */ { i++; if (i < pSLEditData->dataEnd) { #ifndef USE_BIG5 if ((BYTE)buffer [i] > 0xA0) /* 2nd:gb:a1-fe,big5:40-7e,a1-fe */ #else /* 2nd:gb:a1-fe,big5:40-7e,a1-fe */ if ( ((BYTE)buffer [i] >= 0x40 && (BYTE)buffer[i] <= 0x7e) || ((BYTE)buffer [i] >= 0xa1 && (BYTE)buffer[i] <= 0xfe)) #endif { nTextWidth += GetSysCCharWidth (hwnd); newOff += 2; } else i --; } else { nTextWidth += GetSysCharWidth (hwnd); newOff ++; } } else { nTextWidth += GetSysCharWidth (hwnd); newOff ++; } } return newOff; } static BOOL edtIsACCharBeforePosition (const char* string, int pos) { if (pos < 2) return FALSE; /* 1st:gb:a1-f7,big5:a1-f9 2nd:gb:a1-fe,big5:40-7e,a1-fe */ #ifndef USE_BIG5 /* FIXME #ifdef GB2312?*/ if ((BYTE)string [pos - 2] > 0xA0 && (BYTE)string [pos - 1] > 0xA0) return TRUE; #else if ((BYTE)string [pos - 2] > 0xA0) { if ( ((BYTE)string [pos - 1] >= 0x40 && (BYTE)string[pos - 1] <= 0x7e) || ((BYTE)string [pos - 1] >= 0xa1 && (BYTE)string[pos - 1] <= 0xfe)) return TRUE; } #endif return FALSE; } static BOOL edtIsACCharAtPosition (const char* string, int len, int pos) { if (pos > (len - 2)) return FALSE; /* 1st:gb:a1-f7,big5:a1-f9 2nd:gb:a1-fe,big5:40-7e,a1-fe */ #ifndef USE_BIG5 if ((BYTE)string [pos] > 0xA0 && (BYTE)string [pos + 1] > 0xA0) return TRUE; #else if ((BYTE)string [pos] > 0xA0) { if ( ((BYTE)string [pos + 1] >= 0x40 && (BYTE)string [pos + 1] <= 0x7e) || ((BYTE)string [pos + 1] >= 0xa1 && (BYTE)string [pos + 1] <= 0xfe)) { /*fprintf(stderr,"true\n"); fflush(stderr);*/ return TRUE; } } #endif return FALSE; } LRESULT CALLBACK SLEditCtrlProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { HWND pCtrl; DWORD dwStyle; HDC hdc; PSLEDITDATA pSLEditData; RECT rc; pCtrl = hWnd; dwStyle = pCtrl->style; switch (message) { case WM_CREATE: if (!(pSLEditData = malloc (sizeof (SLEDITDATA)))) { fprintf (stderr, "EDIT: malloc error!\n"); return -1; } pSLEditData->hFont = GetStockObject(DEFAULT_FONT); pSLEditData->bufferLen = LEN_SLEDIT_BUFFER; pSLEditData->editPos = 0; pSLEditData->caretOff = 0; pSLEditData->startPos = 0; pSLEditData->selStart = 0; pSLEditData->selEnd = 0; pSLEditData->passwdChar = '*'; pSLEditData->leftMargin = MARGIN_EDIT_LEFT; pSLEditData->topMargin = MARGIN_EDIT_TOP; pSLEditData->rightMargin = MARGIN_EDIT_RIGHT; pSLEditData->bottomMargin = MARGIN_EDIT_BOTTOM; pSLEditData->hardLimit = -1; /* undo information */ pSLEditData->lastOp = EDIT_OP_NONE; pSLEditData->lastPos = 0; pSLEditData->affectedLen = 0; pSLEditData->undoBufferLen = LEN_SLEDIT_UNDOBUFFER; pSLEditData->undoBuffer [0] = '\0'; pSLEditData->dataEnd = strlen (pCtrl->szTitle); memcpy (pSLEditData->buffer, pCtrl->szTitle, min (LEN_SLEDIT_BUFFER, pSLEditData->dataEnd)); pCtrl->userdata2 = (DWORD) pSLEditData; pCtrl->userdata = 0; break; case WM_DESTROY: DestroyCaret (); free ((void*)pCtrl->userdata2); break; #if 0 case WM_CHANGESIZE: { pCtrl->cl = pCtrl->left + WIDTH_EDIT_BORDER; pCtrl->ct = pCtrl->top + WIDTH_EDIT_BORDER; pCtrl->cr = pCtrl->right - WIDTH_EDIT_BORDER; pCtrl->cb = pCtrl->bottom - WIDTH_EDIT_BORDER; } break; #endif #if 1 /* jmt: for edit: chinese support */ case WM_SETFONT: { pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); pSLEditData->hFont = (HFONT)wParam; ShowWindow(hWnd, SW_HIDE); ShowWindow(hWnd, SW_SHOWNA); if(LOWORD(lParam)) InvalidateRect(hWnd,NULL,TRUE); } return (LRESULT)0; case WM_GETFONT: pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); return (LRESULT)pSLEditData->hFont; #endif #if 0 case WM_SETCURSOR: if (dwStyle & WS_DISABLED) { SetCursor (GetSystemCursor (IDC_ARROW)); return 0; } break; #endif case WM_KILLFOCUS: pCtrl->userdata &= ~EST_FOCUSED; HideCaret (hWnd); DestroyCaret (); SendMessage (GetParent (hWnd), WM_COMMAND, (WPARAM) MAKELONG (pCtrl->id, EN_KILLFOCUS), (LPARAM)hWnd); break; case WM_SETFOCUS: if (pCtrl->userdata & EST_FOCUSED) return 0; pCtrl->userdata |= EST_FOCUSED; pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); /* only implemented for ES_LEFT align format. */ CreateCaret (hWnd, NULL, 1 /*+ GetSysCharWidth(hWnd)*/, hWnd->clirect.bottom-hWnd->clirect.top-2); SetCaretPos (pSLEditData->caretOff * GetSysCharWidth (hWnd) + pSLEditData->leftMargin, pSLEditData->topMargin); ShowCaret (hWnd); SendMessage (GetParent (hWnd), WM_COMMAND, (WPARAM) MAKELONG (pCtrl->id, EN_SETFOCUS), (LPARAM) hWnd); break; case WM_ENABLE: if ( (!(dwStyle & WS_DISABLED) && !wParam) || ((dwStyle & WS_DISABLED) && wParam) ) { if (wParam) pCtrl->style &= ~WS_DISABLED; else pCtrl->style |= WS_DISABLED; InvalidateRect (hWnd, NULL, FALSE); } break; case WM_NCCALCSIZE: { LPNCCALCSIZE_PARAMS lpnc; /* calculate client rect from passed window rect in rgrc[0]*/ lpnc = (LPNCCALCSIZE_PARAMS)lParam; if(GetWindowLong(hWnd, GWL_STYLE) & WS_BORDER) InflateRect(&lpnc->rgrc[0], -2, -2); } break; case WM_NCPAINT: hdc = wParam? (HDC)wParam: GetWindowDC (hWnd); GetWindowRect(hWnd, &rc); if (dwStyle & WS_BORDER) Draw3dInset(hdc, rc.left, rc.top, rc.right-rc.left, rc.bottom-rc.top); if (!wParam) ReleaseDC (hWnd, hdc); break; case WM_PAINT: { int dispLen; char* dispBuffer; RECT rect,rc; PAINTSTRUCT ps; HGDIOBJ oldfont; oldfont=NULL; hdc = BeginPaint (hWnd,&ps); GetClientRect (hWnd, &rect); if (dwStyle & WS_DISABLED) { #if 0 SetBrushColor (hdc, LTGRAY/*COLOR_lightgray*/); FillBox (hdc, 0, 0, rect.right, rect.bottom); #else rc.left=0; rc.top=0; rc.bottom=rect.bottom; rc.right=rect.right; FillRect(hdc,&rc,GetStockObject(LTGRAY_BRUSH)); #endif SetBkColor (hdc, LTGRAY/*COLOR_lightgray*/); } else { #if 0 SetBrushColor (hdc, WHITE/*COLOR_lightwhite*/); FillBox (hdc, 0, 0, rect.right, rect.bottom); #else rc.left=0; rc.top=0; rc.bottom=rect.bottom; rc.right=rect.right; FillRect(hdc,&rc,GetStockObject(WHITE_BRUSH)); #endif SetBkColor (hdc, WHITE/*COLOR_lightwhite*/); } SetTextColor (hdc, BLACK/*COLOR_black*/); dispLen = edtGetDispLen (pCtrl); if (dispLen == 0) { EndPaint (hWnd, &ps); break; } pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); #ifdef _DEBUG if (pSLEditData->startPos > pSLEditData->dataEnd) fprintf (stderr, "ASSERT failure: %s.\n", "Edit Paint"); #endif dispBuffer = ALLOCA(dispLen + 1); if (dwStyle & ES_PASSWORD) memset (dispBuffer, '*', dispLen); else memcpy (dispBuffer, pSLEditData->buffer + pSLEditData->startPos, dispLen); dispBuffer [dispLen] = '\0'; /* only implemented ES_LEFT align format for single line edit. */ rect.left += pSLEditData->leftMargin; rect.top += pSLEditData->topMargin; rect.right -= pSLEditData->rightMargin; rect.bottom -= pSLEditData->bottomMargin; #if 0 /* FIXME no ClipRectIntersect() */ #if 0 ClipRectIntersect (hdc, &rect); #else GdSetClipRects(hdc->psd,1,&rect); /*??==ClipRectIntersect??*/ #endif #endif #ifdef USE_BIG5 oldfont=SelectObject(hdc,CreateFont(12, 0,0,0,0,0,0,0,0,0,0,0, FF_DONTCARE|DEFAULT_PITCH, "HZXFONT")); #else SelectObject(hdc, pSLEditData->hFont); #endif TextOut (hdc, pSLEditData->leftMargin, pSLEditData->topMargin, dispBuffer,-1); #ifdef USE_BIG5 DeleteObject(SelectObject(hdc,oldfont)); #endif EndPaint (hWnd, &ps); FREEA(dispBuffer); } break; #if 1 /* jmt+ */ case WM_KEYDOWN: { BOOL bChange = FALSE; int i; RECT InvRect; int deleted; pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); switch ((int)(wParam)) /* (LOWORD (wParam)) */ { #if 0 case SCANCODE_ENTER: SendMessage (GetParent (hWnd), WM_COMMAND, (WPARAM) MAKELONG (pCtrl->id, EN_ENTER), (LPARAM) hWnd); return 0; case SCANCODE_HOME: if (pSLEditData->editPos == 0) return 0; pSLEditData->editPos = 0; pSLEditData->caretOff = 0; SetCaretPos (pSLEditData->caretOff * GetSysCharWidth (hWnd) + pSLEditData->leftMargin, pSLEditData->topMargin); if (pSLEditData->startPos != 0) InvalidateRect (hWnd, NULL, FALSE); pSLEditData->startPos = 0; return 0; case SCANCODE_END: { int newStartPos; if (pSLEditData->editPos == pSLEditData->dataEnd) return 0; newStartPos = edtGetStartDispPosAtEnd (pCtrl, pSLEditData); pSLEditData->editPos = pSLEditData->dataEnd; pSLEditData->caretOff = pSLEditData->editPos - newStartPos; SetCaretPos (pSLEditData->caretOff * GetSysCharWidth (hWnd) + pSLEditData->leftMargin, pSLEditData->topMargin); if (pSLEditData->startPos != newStartPos) InvalidateRect (hWnd, NULL, FALSE); pSLEditData->startPos = newStartPos; } return 0; #endif case VK_LEFT: /* SCANCODE_CURSORBLOCKLEFT: */ { BOOL bScroll = FALSE; int scrollStep; if (pSLEditData->editPos == 0) return 0; if (edtIsACCharBeforePosition (pSLEditData->buffer, pSLEditData->editPos)) { scrollStep = 2; pSLEditData->editPos -= 2; } else { scrollStep = 1; pSLEditData->editPos --; } pSLEditData->caretOff -= scrollStep; if (pSLEditData->caretOff == 0 && pSLEditData->editPos != 0) { bScroll = TRUE; if (edtIsACCharBeforePosition (pSLEditData->buffer, pSLEditData->editPos)) { pSLEditData->startPos -= 2; pSLEditData->caretOff = 2; } else { pSLEditData->startPos --; pSLEditData->caretOff = 1; } } else if (pSLEditData->caretOff < 0) { pSLEditData->startPos = 0; pSLEditData->caretOff = 0; } SetCaretPos (pSLEditData->caretOff * GetSysCharWidth (hWnd) + pSLEditData->leftMargin, pSLEditData->topMargin); if (bScroll) InvalidateRect (hWnd, NULL, FALSE); } return 0; case VK_RIGHT: /* SCANCODE_CURSORBLOCKRIGHT: */ { BOOL bScroll = FALSE; int scrollStep, moveStep; if (pSLEditData->editPos == pSLEditData->dataEnd) return 0; if (edtIsACCharAtPosition (pSLEditData->buffer, pSLEditData->dataEnd, pSLEditData->startPos)) { if (edtIsACCharAtPosition (pSLEditData->buffer, pSLEditData->dataEnd, pSLEditData->editPos)) { scrollStep = 2; moveStep = 2; pSLEditData->editPos += 2; } else { scrollStep = 2; moveStep = 1; pSLEditData->editPos ++; } } else { if (edtIsACCharAtPosition (pSLEditData->buffer, pSLEditData->dataEnd, pSLEditData->editPos)) { if (edtIsACCharAtPosition (pSLEditData->buffer, pSLEditData->dataEnd, pSLEditData->startPos + 1)) scrollStep = 3; else scrollStep = 2; moveStep = 2; pSLEditData->editPos += 2; } else { scrollStep = 1; moveStep = 1; pSLEditData->editPos ++; } } pSLEditData->caretOff += moveStep; if (pSLEditData->caretOff * GetSysCharWidth (hWnd) > edtGetOutWidth (pCtrl)) { bScroll = TRUE; pSLEditData->startPos += scrollStep; pSLEditData->caretOff = pSLEditData->editPos - pSLEditData->startPos; } SetCaretPos (pSLEditData->caretOff * GetSysCharWidth (hWnd) + pSLEditData->leftMargin, pSLEditData->topMargin); if (bScroll) InvalidateRect (hWnd, NULL, FALSE); } return 0; #if 0 case SCANCODE_INSERT: pCtrl->userdata ^= EST_REPLACE; break; #endif case VK_DELETE: /* SCANCODE_REMOVE: */ if ((pCtrl->userdata & EST_READONLY) || (pSLEditData->editPos == pSLEditData->dataEnd)){ #if 0 /* fix: no ping() */ Ping (); #endif return 0; } if (edtIsACCharAtPosition (pSLEditData->buffer, pSLEditData->dataEnd, pSLEditData->editPos)) deleted = 2; else deleted = 1; for (i = pSLEditData->editPos; i < pSLEditData->dataEnd - deleted; i++) pSLEditData->buffer [i] = pSLEditData->buffer [i + deleted]; pSLEditData->dataEnd -= deleted; bChange = TRUE; InvRect.left = pSLEditData->leftMargin + pSLEditData->caretOff * GetSysCharWidth (hWnd); InvRect.top = pSLEditData->topMargin; InvRect.right = pCtrl->clirect.right - pCtrl->clirect.left; InvRect.bottom = pCtrl->clirect.bottom - pCtrl->clirect.top; InvalidateRect (hWnd, &InvRect, FALSE); break; case VK_BACK: /* SCANCODE_BACKSPACE: */ if ((pCtrl->userdata & EST_READONLY) || (pSLEditData->editPos == 0)) { #if 0 /* fix: no ping */ Ping (); #endif return 0; } if (edtIsACCharBeforePosition (pSLEditData->buffer, pSLEditData->editPos)) deleted = 2; else deleted = 1; for (i = pSLEditData->editPos; i < pSLEditData->dataEnd; i++) pSLEditData->buffer [i - deleted] = pSLEditData->buffer [i]; pSLEditData->dataEnd -= deleted; pSLEditData->editPos -= deleted; bChange = TRUE; pSLEditData->caretOff -= deleted; if (pSLEditData->caretOff == 0 && pSLEditData->editPos != 0) { if (edtIsACCharBeforePosition (pSLEditData->buffer, pSLEditData->editPos)) { pSLEditData->startPos -= 2; pSLEditData->caretOff = 2; } else { pSLEditData->startPos --; pSLEditData->caretOff = 1; } InvRect.left = pSLEditData->leftMargin; InvRect.top = pSLEditData->topMargin; InvRect.right = pCtrl->clirect.right - pCtrl->clirect.left; InvRect.bottom = pCtrl->clirect.bottom - pCtrl->clirect.top; } else { InvRect.left = pSLEditData->leftMargin + pSLEditData->caretOff * GetSysCharWidth (hWnd); InvRect.top = pSLEditData->topMargin; InvRect.right = pCtrl->clirect.right - pCtrl->clirect.left; InvRect.bottom = pCtrl->clirect.bottom - pCtrl->clirect.top; } SetCaretPos (pSLEditData->caretOff * GetSysCharWidth (hWnd) + pSLEditData->leftMargin, pSLEditData->topMargin); InvalidateRect (hWnd, &InvRect, FALSE); break; default: break; } if (bChange) SendMessage (GetParent (hWnd), WM_COMMAND, (WPARAM) MAKELONG (pCtrl->id, EN_CHANGE), (LPARAM) hWnd); } break; #endif case WM_CHAR: { char charBuffer [2]; int i, chars, scrollStep, inserting; RECT InvRect; pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); if (dwStyle & ES_READONLY) { #if 0 /* fix: no ping() */ Ping(); #endif return 0; } if (HIBYTE (wParam)) { charBuffer [0] = LOBYTE (wParam); charBuffer [1] = HIBYTE (wParam); chars = 2; } else { charBuffer [0] = LOBYTE (wParam); chars = 1; } if (chars == 1) { switch (charBuffer [0]) { case 0x00: /* NULL */ case 0x07: /* BEL */ case 0x08: /* BS */ case 0x09: /* HT */ case 0x0A: /* LF */ case 0x0B: /* VT */ case 0x0C: /* FF */ case 0x0D: /* CR */ case 0x1B: /* Escape */ return 0; } } if (pCtrl->userdata & EST_REPLACE) { if (pSLEditData->dataEnd == pSLEditData->editPos) inserting = chars; else if (edtIsACCharAtPosition (pSLEditData->buffer, pSLEditData->dataEnd, pSLEditData->editPos)) { if (chars == 2) inserting = 0; else inserting = -1; } else { if (chars == 2) inserting = 1; else inserting = 0; } } else inserting = chars; /* check space */ if (pSLEditData->dataEnd + inserting > pSLEditData->bufferLen) { #if 0 /* fix: no ping() */ Ping (); #endif SendMessage (GetParent (hWnd), WM_COMMAND, (WPARAM) MAKELONG (pCtrl->id, EN_MAXTEXT), (LPARAM) hWnd); return 0; } else if ((pSLEditData->hardLimit >= 0) && ((pSLEditData->dataEnd + inserting) > pSLEditData->hardLimit)) { #if 0 /* fix: no ping() */ Ping (); #endif SendMessage (GetParent (hWnd), WM_COMMAND, (WPARAM) MAKELONG (pCtrl->id, EN_MAXTEXT), (LPARAM) hWnd); return 0; } if (inserting == -1) { for (i = pSLEditData->editPos; i < pSLEditData->dataEnd-1; i++) pSLEditData->buffer [i] = pSLEditData->buffer [i + 1]; } else if (inserting > 0) { for (i = pSLEditData->dataEnd + inserting - 1; i > pSLEditData->editPos + inserting - 1; i--) pSLEditData->buffer [i] = pSLEditData->buffer [i - inserting]; } for (i = 0; i < chars; i++) pSLEditData->buffer [pSLEditData->editPos + i] = charBuffer [i]; pSLEditData->editPos += chars; pSLEditData->caretOff += chars; pSLEditData->dataEnd += inserting; if (pSLEditData->caretOff * GetSysCharWidth (hWnd) > edtGetOutWidth (pCtrl)) { if (edtIsACCharAtPosition (pSLEditData->buffer, pSLEditData->dataEnd, pSLEditData->startPos)) scrollStep = 2; else { if (chars == 2) { if (edtIsACCharAtPosition (pSLEditData->buffer, pSLEditData->dataEnd, pSLEditData->startPos + 1)) scrollStep = 3; else scrollStep = 2; } else scrollStep = 1; } pSLEditData->startPos += scrollStep; pSLEditData->caretOff = pSLEditData->editPos - pSLEditData->startPos; InvRect.left = pSLEditData->leftMargin; InvRect.top = pSLEditData->topMargin; InvRect.right = pCtrl->clirect.right - pCtrl->clirect.left; InvRect.bottom = pCtrl->clirect.bottom - pCtrl->clirect.top; } else { InvRect.left = pSLEditData->leftMargin + (pSLEditData->caretOff - chars) * GetSysCharWidth (hWnd); InvRect.top = pSLEditData->topMargin; InvRect.right = pCtrl->clirect.right - pCtrl->clirect.left; InvRect.bottom = pCtrl->clirect.bottom - pCtrl->clirect.top; } SetCaretPos (pSLEditData->caretOff * GetSysCharWidth (hWnd) + pSLEditData->leftMargin, pSLEditData->topMargin); InvalidateRect (hWnd, &InvRect, FALSE); SendMessage (GetParent (hWnd), WM_COMMAND, (WPARAM) MAKELONG (pCtrl->id, EN_CHANGE), (LPARAM) hWnd); } break; case WM_GETTEXTLENGTH: pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); return pSLEditData->dataEnd; case WM_GETTEXT: { char* buffer = (char*)lParam; int len; pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); len = min ((int)wParam, pSLEditData->dataEnd); memcpy (buffer, pSLEditData->buffer, len); buffer [len] = '\0'; return len; } break; case WM_SETTEXT: { int len; if (dwStyle & ES_READONLY) return 0; pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); len = strlen ((char*)lParam); len = min (len, pSLEditData->bufferLen); if (pSLEditData->hardLimit >= 0) len = min (len, pSLEditData->hardLimit); pSLEditData->dataEnd = len; memcpy (pSLEditData->buffer, (char*)lParam, len); pSLEditData->editPos = 0; pSLEditData->caretOff = 0; pSLEditData->startPos = 0; InvalidateRect (hWnd, NULL, FALSE); } break; case WM_LBUTTONDBLCLK: break; case WM_LBUTTONDOWN: { int newOff; pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); newOff = edtGetOffset (hWnd,pSLEditData, LOWORD (lParam)); if (newOff != pSLEditData->caretOff) { pSLEditData->editPos += newOff - pSLEditData->caretOff; pSLEditData->caretOff = newOff; SetCaretPos (pSLEditData->caretOff * GetSysCharWidth (hWnd) + pSLEditData->leftMargin, pSLEditData->topMargin); } } break; case WM_LBUTTONUP: break; case WM_MOUSEMOVE: break; case WM_GETDLGCODE: return DLGC_WANTCHARS | DLGC_HASSETSEL | DLGC_WANTARROWS; case EM_SETREADONLY: if (wParam) pCtrl->style/*dwStyle*/ |= ES_READONLY; else pCtrl->style/*dwStyle*/ &= ~ES_READONLY; return 0; case EM_SETPASSWORDCHAR: pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); if (pSLEditData->passwdChar != (int)wParam) { if (dwStyle & ES_PASSWORD) { pSLEditData->passwdChar = (int)wParam; InvalidateRect (hWnd, NULL, TRUE); } } return 0; case EM_GETPASSWORDCHAR: { int* passwdchar; pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); passwdchar = (int*) lParam; *passwdchar = pSLEditData->passwdChar; } return 0; case EM_LIMITTEXT: { int newLimit = (int)wParam; if (newLimit >= 0) { pSLEditData = (PSLEDITDATA) (pCtrl->userdata2); if (pSLEditData->bufferLen < newLimit) pSLEditData->hardLimit = -1; else pSLEditData->hardLimit = newLimit; } } return 0; default: return DefWindowProc (hWnd, message, wParam, lParam); break; } return 0; }