medit.c

miniucgui1.30版本的源码

                        if(temp)
                            temp->previous = pLineData->next;
                    
                        temp = pLineData->next;
                        temp->lineNO = line + 1;
                        if(tempP) {
                            memcpy(temp->buffer,tempP,strlen(tempP));
                            temp->dataEnd = strlen(tempP);
                        }
                        else
                            temp->dataEnd = 0;
                        temp->buffer[temp->dataEnd] = '\0'; 
                        pLineData->dataEnd = pMLEditData->pos_chars[pMLEditData->veditPos];
                        pLineData->buffer[pLineData->dataEnd]='\0';
                        temp = temp->next;
                        while (temp)
                        {
                            temp->lineNO++;
                            temp = temp->next;
                        }
                        if (!((pMLEditData->veditPos == pLineData->wrapStartPos[wrapline])
                               && (wrapline)))
                            pMLEditData->editLine++;
                        pMLEditData->wraplines -= pLineData->nwrapline;
                        calcLineInfo (hWnd, pMLEditData, pLineData);
                        calcLineInfo (hWnd, pMLEditData, pLineData->next);
                        edtGetLineInfo (hWnd, pLineData->next);
                        pMLEditData->lines++;
                        pMLEditData->wraplines += pLineData->nwrapline + pLineData->next->nwrapline;
                        pMLEditData->veditPos=0;

                        if (pMLEditData->editLine > pMLEditData->EndlineDisp)
                        {
                            pMLEditData->EndlineDisp = pMLEditData->editLine;
                            if (pMLEditData->EndlineDisp > 
                                            pMLEditData->StartlineDisp+pMLEditData->MaxlinesDisp-1)
                            {
                                pMLEditData->StartlineDisp = pMLEditData->EndlineDisp
                                                            -pMLEditData->MaxlinesDisp + 1;
                            }else {
                                InvRect.top  = (pMLEditData->editLine 
                                                - pMLEditData->StartlineDisp -1) 
                                                    * pMLEditData->lineHeight
                                                  + pMLEditData->topMargin;
                                InvRect.bottom  -=  pMLEditData->lineHeight;
                            }
                        }else {
                            pMLEditData->EndlineDisp = pMLEditData->StartlineDisp + MIN (pMLEditData->wraplines 
                                                                                        - pMLEditData->StartlineDisp, 
                                                                                    pMLEditData->MaxlinesDisp) - 1;
                        }
                        pMLEditData->linesDisp = pMLEditData->EndlineDisp 
                                                - pMLEditData->StartlineDisp + 1;
                        NotifyParent (hWnd, GetDlgCtrlID(hWnd), EN_CHANGE);
                        InvalidateRect (hWnd, &InvRect, TRUE);
                        edtSetCaretPos (hWnd);
                        edtSetScrollInfo (hWnd, pMLEditData, TRUE);
                        if (pMLEditData->bSCROLL)
                            InvalidateRect (hWnd, NULL, TRUE);
                        return 0;
                    }

                    edtGetLineInfo (hWnd, pLineData);
                    
                    if (pMLEditData->veditPos < pMLEditData->fit_chars)
                        tempP = pLineData->buffer + pMLEditData->pos_chars[pMLEditData->veditPos];
                    temp = pLineData->next;
                    pLineData->next = malloc( sizeof(LINEDATA) );
                    pLineData->next->previous = pLineData;
                    pLineData->next->next = temp;
                    
                    if(temp)
                        temp->previous = pLineData->next;
                    
                    temp = pLineData->next;
                    temp->lineNO  = pMLEditData->editLine + 1;
                    if(tempP) {
                        memcpy(temp->buffer,tempP,strlen(tempP));
                        temp->dataEnd = strlen(tempP);
                    }
                    else
                        temp->dataEnd = 0;
                    temp->buffer[temp->dataEnd] = '\0'; 
                    pLineData->dataEnd = pMLEditData->pos_chars[pMLEditData->veditPos];
                    pLineData->buffer[pLineData->dataEnd]='\0';
                    temp = temp->next;
                    while (temp)
                    {
                        temp->lineNO++;
                        temp = temp->next;
                    }
                    // added by leon to optimize display
                    if ((pMLEditData->editLine - pMLEditData->StartlineDisp + 1) 
                                    < pMLEditData->MaxlinesDisp) {
                        if (!(pMLEditData->dx_chars[pMLEditData->veditPos] - pMLEditData->leftMargin
                                 > edtGetOutWidth (hWnd))) {
                            InvRect.top  = (pMLEditData->editLine - pMLEditData->StartlineDisp -1) 
                                                * pMLEditData->lineHeight
                                                  + pMLEditData->topMargin;
                        }
                                
                     }else {
                        if ((pMLEditData->vdispPos == 0) 
                                && (pMLEditData->vdispPos == pMLEditData->veditPos))         
                            InvRect.bottom  -=  pMLEditData->lineHeight;
                     }
                    // added by leon to optimize display
                    pMLEditData->veditPos = 0;
                    pMLEditData->vdispPos = 0;
                
                    if(pMLEditData->linesDisp < pMLEditData->MaxlinesDisp)
                    {
                        pMLEditData->EndlineDisp++;
                        pMLEditData->linesDisp++;
                    }
                    else if(pMLEditData->editLine == pMLEditData->EndlineDisp) 
                    {
                        pMLEditData->StartlineDisp++;
                        pMLEditData->EndlineDisp++;
                    }
                    pMLEditData->editLine++;
                    edtGetLineInfo (hWnd, GetLineData(pMLEditData,pMLEditData->editLine));    
                    pMLEditData->lines++;
                    
                    pMLEditData->dispPos = 0;

                    pMLEditData->dispPos = pMLEditData->dx_chars[pMLEditData->vdispPos];
                    edtSetCaretPos (hWnd);
                    edtSetScrollInfo (hWnd, pMLEditData, TRUE);
                    InvalidateRect (hWnd, &InvRect, TRUE); // modified by leon

                    NotifyParent (hWnd, GetDlgCtrlID(hWnd), EN_CHANGE);
                    if (pMLEditData->bSCROLL)
                        InvalidateRect (hWnd, NULL, TRUE);

                    return 0;
                }
                case SCANCODE_HOME:
                {
                    int         line = 0, wrapline = 0;
                    BOOL         bScroll = FALSE;

                    pMLEditData =(PMLEDITDATA) GetWindowAdditionalData2(hWnd);

                    if (pMLEditData->veditPos == 0)
                        return 0;

                    if (dwStyle & ES_AUTOWRAP)
                    {
                        edtGetLineNums (pMLEditData, pMLEditData->editLine, &line, &wrapline);
                        pLineData = GetLineData(pMLEditData, line);

                        pMLEditData->editLine -= wrapline;
                        if (pMLEditData->editLine < pMLEditData->StartlineDisp)
                        {
                            pMLEditData->StartlineDisp = pMLEditData->editLine;
                            pMLEditData->linesDisp =  MIN (pMLEditData->wraplines 
                                                            - pMLEditData->StartlineDisp, 
                                                        pMLEditData->MaxlinesDisp);
                            pMLEditData->EndlineDisp = 
                                    pMLEditData->StartlineDisp + pMLEditData->linesDisp - 1;
                            bScroll = TRUE;
                        }
                        edtGetCaretValid (hWnd, pMLEditData->editLine, 0, 0);

                        edtSetCaretPos (hWnd);
                        if (bScroll)
                        {
                            InvalidateRect(hWnd,NULL,TRUE);    
                            edtSetScrollInfo (hWnd, pMLEditData, TRUE);
                        }
                        if (pMLEditData->bSCROLL)
                            InvalidateRect (hWnd, NULL, TRUE);
                        return 0;
                    }
                    
                    pMLEditData->veditPos = 0;

                    if (pMLEditData->vdispPos != 0)
                    {
                        pMLEditData->vdispPos = 0;
                        InvalidateRect (hWnd, NULL, TRUE);
                    }
                    pMLEditData->dispPos = 0;
                    edtSetCaretPos (hWnd);
                    edtSetScrollInfo (hWnd, pMLEditData, TRUE);
                    if (pMLEditData->bSCROLL)
                        InvalidateRect (hWnd, NULL, TRUE);
                       return 0;
                }
                case SCANCODE_END:
                {
                    int      newStartPos, oldeditPos, line, wrapline;
                    BOOL     bScroll = FALSE;

                    pMLEditData =(PMLEDITDATA) GetWindowAdditionalData2(hWnd);

                    if (dwStyle & ES_AUTOWRAP)
                    {
                        edtGetLineNums (pMLEditData, pMLEditData->editLine, &line, &wrapline);
                        pLineData = GetLineData(pMLEditData, line);
                    }else 
                        pLineData = GetLineData(pMLEditData,pMLEditData->editLine);
                    
                    edtGetLineInfo (hWnd, pLineData);
                    if (pMLEditData->veditPos == pMLEditData->fit_chars)
                        return 0;
                    
                    if (dwStyle & ES_AUTOWRAP)
                    {
                        pMLEditData->veditPos = pMLEditData->fit_chars;
                        pMLEditData->editLine += pLineData->nwrapline - 1 - wrapline;
                        if (pMLEditData->editLine > pMLEditData->EndlineDisp)
                        {
                            pMLEditData->EndlineDisp = pMLEditData->editLine;
                            pMLEditData->StartlineDisp = 
                                    pMLEditData->EndlineDisp - pMLEditData->MaxlinesDisp + 1;
                            bScroll = TRUE;
                        }

                        oldeditPos = pMLEditData->dx_chars[pMLEditData->veditPos] 
                            - pMLEditData->dx_chars[pLineData->wrapStartPos[pLineData->nwrapline-1]];
                        
                        edtGetCaretValid (hWnd, pMLEditData->editLine, 0, oldeditPos);

                        edtSetCaretPos (hWnd);
                        if (bScroll)
                            InvalidateRect(hWnd,NULL,TRUE);    
                        edtSetScrollInfo (hWnd, pMLEditData, TRUE);
                        if (pMLEditData->bSCROLL)
                            InvalidateRect (hWnd, NULL, TRUE);
                        return 0;
                    }

                    
                    newStartPos = edtGetStartDispPosAtEnd (hWnd, pLineData);
                    pMLEditData->veditPos = pMLEditData->fit_chars;

                    pMLEditData->dispPos = pMLEditData->dx_chars[pMLEditData->vdispPos];
                    if (pMLEditData->vdispPos != newStartPos) {
                        pMLEditData->vdispPos = newStartPos;
                        pMLEditData->dispPos = pMLEditData->dx_chars[pMLEditData->vdispPos];
                        InvalidateRect (hWnd, NULL, TRUE);
                    }
                    edtSetCaretPos (hWnd);
                    edtSetScrollInfo (hWnd, pMLEditData, TRUE);
                }
                    if (pMLEditData->bSCROLL)
                        InvalidateRect (hWnd, NULL, TRUE);
                return 0;

                case SCANCODE_CURSORBLOCKLEFT: 
                {
                    BOOL         bScroll = FALSE;
                    int          newStartPos, line, wrapline;
                    PLINEDATA     temp;

                       edtPosProc (hWnd); 
                    if (dwStyle & ES_AUTOWRAP)
                    {
                        edtGetLineNums (pMLEditData, pMLEditData->editLine, &line, &wrapline);
                        pLineData = GetLineData(pMLEditData, line);
                    }
                    else
                        pLineData = GetLineData(pMLEditData,pMLEditData->editLine);

                    if (dwStyle & ES_AUTOWRAP)
                    {
                        if (!pMLEditData->veditPos && !pMLEditData->editLine) return 0;
                        edtGetLineInfo (hWnd, pLineData);
                        if (!pMLEditData->veditPos)
                        {
                            if (pMLEditData->editLine == pMLEditData->StartlineDisp) {
                                bScroll = TRUE;
                                pMLEditData->StartlineDisp--;
                                if (pMLEditData->EndlineDisp >= pMLEditData->MaxlinesDisp)
                                    pMLEditData->EndlineDisp--;
                            }
                            pMLEditData->editLine--;
                            temp = pLineData->previous;
                            edtGetLineInfo (hWnd, temp);
                            pMLEditData->veditPos = temp->wrapStartPos[temp->nwrapline];
                        }else if (pMLEditData->veditPos == pLineData->wrapStartPos[wrapline]) {
                            if (pMLEditData->editLine == pMLEditData->StartlineDisp) {
                                bScroll = TRUE;
                                pMLEditData->StartlineDisp--;
                                if (pMLEditData->EndlineDisp >= pMLEditData->MaxlinesDisp)
                                    pMLEditData->EndlineDisp--;
                            }
                            pMLEditData->editLine--;
                            pMLEditData->veditPos--; 
                        }else 
                            pMLEditData->veditPos--;

                        pMLEditData->linesDisp = pMLEditData->EndlineDisp 
                                                - pMLEditData->StartlineDisp + 1;
                        edtSetCaretPos (hWnd);
                        if (bScroll)
                        {
                            InvalidateRect(hWnd,NULL,TRUE);    
                            edtSetScrollInfo (hWnd, pMLEditData, TRUE);
                        }
                        if (pMLEditData->bSCROLL)
                            InvalidateRect (hWnd, NULL, TRUE);
                        return 0;
                    }

                    
                    if (!pMLEditData->veditPos)
                    {
                        temp = pLineData->previous;
                        if (!temp) return 0;
                        if(pMLEditData->editLine > 0 )
                        {
                            if (pMLEditData->editLine == pMLEditData->StartlineDisp) {
                                bScroll = TRUE;
                                pMLEditData->StartlineDisp--;
                                if (pMLEditData->EndlineDisp >= pMLEditData->MaxlinesDisp)
                                    pMLEditData->EndlineDisp--;
                            }
                            pMLEditData->editLine --;
                            edtGetLineInfo (hWnd, GetLineData (pMLEditData, pMLEditData->editLine));
                            pMLEditData->veditPos = pMLEditData->fit_chars; 
                            newStartPos = edtGetStartDispPosAtEnd (hWnd, temp);
                            if (pMLEditData->vdispPos != newStartPos)
                            {
                                pMLEditData->vdispPos = newStartPos;
                                bScroll = TRUE;
                            }
                        }