409 lines
8.8 KiB
C
409 lines
8.8 KiB
C
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/*************************************************************************
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**
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** OLE 2 Sample Code
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**
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** outltxtl.c
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**
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** This file contains TextLine methods and related support functions.
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**
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** (c) Copyright Microsoft Corp. 1992 - 1993 All Rights Reserved
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**
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*************************************************************************/
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#include "outline.h"
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OLEDBGDATA
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extern LPOUTLINEAPP g_lpApp;
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/* TextLine_Create
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* ---------------
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*
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* Create a text line object and return the pointer
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*/
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LPTEXTLINE TextLine_Create(HDC hDC, UINT nTab, LPSTR lpszText)
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{
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LPTEXTLINE lpTextLine;
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lpTextLine=(LPTEXTLINE) New((DWORD)sizeof(TEXTLINE));
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if (lpTextLine == NULL) {
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OleDbgAssertSz(lpTextLine!=NULL,"Error allocating TextLine");
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return NULL;
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}
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TextLine_Init(lpTextLine, nTab, hDC);
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if (lpszText) {
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lpTextLine->m_nLength = lstrlen(lpszText);
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lstrcpy((LPSTR)lpTextLine->m_szText, lpszText);
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} else {
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lpTextLine->m_nLength = 0;
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lpTextLine->m_szText[0] = '\0';
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}
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TextLine_CalcExtents(lpTextLine, hDC);
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return(lpTextLine);
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}
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/* TextLine_Init
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* -------------
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*
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* Calculate the width/height of a text line object.
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*/
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void TextLine_Init(LPTEXTLINE lpTextLine, int nTab, HDC hDC)
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{
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Line_Init((LPLINE)lpTextLine, nTab, hDC); // init the base class fields
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((LPLINE)lpTextLine)->m_lineType = TEXTLINETYPE;
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lpTextLine->m_nLength = 0;
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lpTextLine->m_szText[0] = '\0';
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}
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/* TextLine_Delete
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* ---------------
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*
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* Delete the TextLine structure
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*/
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void TextLine_Delete(LPTEXTLINE lpTextLine)
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{
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Delete((LPVOID)lpTextLine);
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}
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/* TextLine_Edit
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* -------------
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*
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* Edit the text line object.
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*
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* Returns TRUE if line was changed
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* FALSE if the line was NOT changed
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*/
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BOOL TextLine_Edit(LPTEXTLINE lpLine, HWND hWndDoc, HDC hDC)
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{
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#if defined( USE_FRAMETOOLS )
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LPFRAMETOOLS lptb = OutlineApp_GetFrameTools(g_lpApp);
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#endif
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BOOL fStatus = FALSE;
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#if defined( USE_FRAMETOOLS )
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FrameTools_FB_GetEditText(lptb, lpLine->m_szText, sizeof(lpLine->m_szText));
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#else
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if (! InputTextDlg(hWndDoc, lpLine->m_szText, "Edit Line"))
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return FALSE;
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#endif
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lpLine->m_nLength = lstrlen(lpLine->m_szText);
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TextLine_CalcExtents(lpLine, hDC);
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fStatus = TRUE;
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return fStatus;
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}
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/* TextLine_CalcExtents
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* --------------------
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*
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* Calculate the width/height of a text line object.
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*/
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void TextLine_CalcExtents(LPTEXTLINE lpTextLine, HDC hDC)
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{
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SIZE size;
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LPLINE lpLine = (LPLINE)lpTextLine;
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if (lpTextLine->m_nLength) {
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GetTextExtentPoint(hDC, lpTextLine->m_szText,
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lpTextLine->m_nLength, &size);
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lpLine->m_nWidthInHimetric=size.cx;
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lpLine->m_nHeightInHimetric=size.cy;
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} else {
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// we still need to calculate proper height even for NULL string
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TEXTMETRIC tm;
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GetTextMetrics(hDC, &tm);
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// required to set height
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lpLine->m_nHeightInHimetric = tm.tmHeight;
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lpLine->m_nWidthInHimetric = 0;
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}
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#if defined( _DEBUG )
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{
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RECT rc;
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rc.left = 0;
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rc.top = 0;
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rc.right = XformWidthInHimetricToPixels(hDC,
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lpLine->m_nWidthInHimetric);
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rc.bottom = XformHeightInHimetricToPixels(hDC,
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lpLine->m_nHeightInHimetric);
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OleDbgOutRect3("TextLine_CalcExtents", (LPRECT)&rc);
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}
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#endif
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}
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/* TextLine_SetHeightInHimetric
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* ----------------------------
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*
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* Set the height of a textline object.
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*/
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void TextLine_SetHeightInHimetric(LPTEXTLINE lpTextLine, int nHeight)
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{
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if (!lpTextLine)
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return;
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((LPLINE)lpTextLine)->m_nHeightInHimetric = nHeight;
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}
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/* TextLine_GetTextLen
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* -------------------
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*
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* Return length of string of the TextLine (not considering the tab level).
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*/
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int TextLine_GetTextLen(LPTEXTLINE lpTextLine)
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{
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return lstrlen((LPSTR)lpTextLine->m_szText);
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}
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/* TextLine_GetTextData
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* --------------------
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*
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* Return the string of the TextLine (not considering the tab level).
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*/
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void TextLine_GetTextData(LPTEXTLINE lpTextLine, LPSTR lpszBuf)
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{
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lstrcpy(lpszBuf, (LPSTR)lpTextLine->m_szText);
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}
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/* TextLine_GetOutlineData
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* -----------------------
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*
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* Return the CF_OUTLINE format data for the TextLine.
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*/
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BOOL TextLine_GetOutlineData(LPTEXTLINE lpTextLine, LPTEXTLINE lpBuf)
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{
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TextLine_Copy((LPTEXTLINE)lpTextLine, lpBuf);
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return TRUE;
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}
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/* TextLine_Draw
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* -------------
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*
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* Draw a text line object on a DC.
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* Parameters:
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* hDC - DC to which the line will be drawn
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* lpRect - the object rectangle in logical coordinates
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* lpRectWBounds - bounding rect of the metafile underneath hDC
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* (NULL if hDC is not a metafile DC)
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* this is used by ContainerLine_Draw to draw the OLE obj
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* fHighlight - TRUE use selection highlight text color
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*/
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void TextLine_Draw(
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LPTEXTLINE lpTextLine,
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HDC hDC,
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LPRECT lpRect,
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LPRECT lpRectWBounds,
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BOOL fHighlight
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)
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{
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RECT rc;
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int nBkMode;
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COLORREF clrefOld;
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if (!lpTextLine)
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return;
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rc = *lpRect;
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rc.left += ((LPLINE)lpTextLine)->m_nTabWidthInHimetric;
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rc.right += ((LPLINE)lpTextLine)->m_nTabWidthInHimetric;
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nBkMode = SetBkMode(hDC, TRANSPARENT);
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if (fHighlight) {
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/*Get proper txt colors */
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clrefOld = SetTextColor(hDC,GetSysColor(COLOR_HIGHLIGHTTEXT));
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}
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else {
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clrefOld = SetTextColor(hDC, GetSysColor(COLOR_WINDOWTEXT));
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}
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ExtTextOut(
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hDC,
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rc.left,
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rc.top,
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ETO_CLIPPED,
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(LPRECT)&rc,
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lpTextLine->m_szText,
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lpTextLine->m_nLength,
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(LPINT) NULL /* default char spacing */
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);
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SetTextColor(hDC, clrefOld);
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SetBkMode(hDC, nBkMode);
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}
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/* TextLine_DrawSelHilight
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* -----------------------
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*
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* Handles selection of textline
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*/
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void TextLine_DrawSelHilight(LPTEXTLINE lpTextLine, HDC hDC, LPRECT lpRect, UINT itemAction, UINT itemState)
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{
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if (itemAction & ODA_SELECT) {
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// check if there is a selection state change, ==> invert rect
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if (itemState & ODS_SELECTED) {
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if (!((LPLINE)lpTextLine)->m_fSelected) {
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((LPLINE)lpTextLine)->m_fSelected = TRUE;
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InvertRect(hDC, (LPRECT)lpRect);
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}
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} else {
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if (((LPLINE)lpTextLine)->m_fSelected) {
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((LPLINE)lpTextLine)->m_fSelected = FALSE;
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InvertRect(hDC, lpRect);
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}
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}
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} else if (itemAction & ODA_DRAWENTIRE) {
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((LPLINE)lpTextLine)->m_fSelected=((itemState & ODS_SELECTED) ? TRUE : FALSE);
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InvertRect(hDC, lpRect);
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}
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}
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/* TextLine_Copy
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* -------------
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*
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* Duplicate a textline
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*/
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BOOL TextLine_Copy(LPTEXTLINE lpSrcLine, LPTEXTLINE lpDestLine)
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{
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_fmemcpy(lpDestLine, lpSrcLine, sizeof(TEXTLINE));
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return TRUE;
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}
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/* TextLine_CopyToDoc
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* ------------------
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*
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* Copy a textline to another Document (usually ClipboardDoc)
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*/
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BOOL TextLine_CopyToDoc(LPTEXTLINE lpSrcLine, LPOUTLINEDOC lpDestDoc, int nIndex)
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{
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LPTEXTLINE lpDestLine;
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BOOL fStatus = FALSE;
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lpDestLine = (LPTEXTLINE) New((DWORD)sizeof(TEXTLINE));
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if (lpDestLine == NULL) {
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OleDbgAssertSz(lpDestLine!=NULL,"Error allocating TextLine");
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return FALSE;
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}
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if (TextLine_Copy(lpSrcLine, lpDestLine)) {
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OutlineDoc_AddLine(lpDestDoc, (LPLINE)lpDestLine, nIndex);
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fStatus = TRUE;
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}
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return fStatus;
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}
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/* TextLine_SaveToStg
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* ------------------
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*
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* Save a textline into a storage
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*
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* Return TRUE if successful, FALSE otherwise
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*/
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BOOL TextLine_SaveToStm(LPTEXTLINE lpTextLine, LPSTREAM lpLLStm)
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{
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HRESULT hrErr;
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ULONG nWritten;
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USHORT nLengthOnDisk;
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nLengthOnDisk = (USHORT) lpTextLine->m_nLength;
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hrErr = lpLLStm->lpVtbl->Write(
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lpLLStm,
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(LPVOID)&nLengthOnDisk,
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sizeof(nLengthOnDisk),
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&nWritten
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);
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if (hrErr != NOERROR) {
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OleDbgOutHResult("Write TextLine data (1) returned", hrErr);
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return FALSE;
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}
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hrErr = lpLLStm->lpVtbl->Write(
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lpLLStm,
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(LPVOID)lpTextLine->m_szText,
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lpTextLine->m_nLength,
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&nWritten
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);
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if (hrErr != NOERROR) {
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OleDbgOutHResult("Write TextLine data (2) returned", hrErr);
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return FALSE;
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}
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return TRUE;
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}
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/* TextLine_LoadFromStg
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* --------------------
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*
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* Load a textline from storage
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*/
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LPLINE TextLine_LoadFromStg(LPSTORAGE lpSrcStg, LPSTREAM lpLLStm, LPOUTLINEDOC lpDestDoc)
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{
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HRESULT hrErr;
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ULONG nRead;
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LPTEXTLINE lpTextLine;
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USHORT nLengthOnDisk;
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lpTextLine=(LPTEXTLINE) New((DWORD)sizeof(TEXTLINE));
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if (lpTextLine == NULL) {
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OleDbgAssertSz(lpTextLine!=NULL,"Error allocating TextLine");
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return NULL;
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}
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TextLine_Init(lpTextLine, 0, NULL);
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hrErr = lpLLStm->lpVtbl->Read(
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lpLLStm,
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(LPVOID)&nLengthOnDisk,
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sizeof(nLengthOnDisk),
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&nRead
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);
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if (hrErr != NOERROR) {
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OleDbgOutHResult("Read TextLine data (1) returned", hrErr);
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return NULL;
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}
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lpTextLine->m_nLength = (UINT) nLengthOnDisk;
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OleDbgAssert(lpTextLine->m_nLength < sizeof(lpTextLine->m_szText));
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hrErr = lpLLStm->lpVtbl->Read(
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lpLLStm,
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(LPVOID)&lpTextLine->m_szText,
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lpTextLine->m_nLength,
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&nRead
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);
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if (hrErr != NOERROR) {
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OleDbgOutHResult("Read TextLine data (1) returned", hrErr);
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|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
lpTextLine->m_szText[lpTextLine->m_nLength] = '\0'; // add str terminator
|
||
|
|
|
||
|
|
return (LPLINE)lpTextLine;
|
||
|
|
}
|