732 lines
16 KiB
C
732 lines
16 KiB
C
/*************************************************************************
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**
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** OLE 2 Sample Code
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**
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** outlline.c
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**
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** This file contains Line 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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/* Line_Init
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* ---------
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*
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* Init the calculated data of a line object
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*/
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void Line_Init(LPLINE lpLine, int nTab, HDC hDC)
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{
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lpLine->m_lineType = UNKNOWNLINETYPE;
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lpLine->m_nTabLevel = nTab;
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lpLine->m_nTabWidthInHimetric = Line_CalcTabWidthInHimetric(lpLine,hDC);
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lpLine->m_nWidthInHimetric = 0;
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lpLine->m_nHeightInHimetric = 0;
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lpLine->m_fSelected = FALSE;
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#if defined( USE_DRAGDROP )
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lpLine->m_fDragOverLine = FALSE;
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#endif
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}
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/* Line_Edit
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* ---------
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*
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* Edit the 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 Line_Edit(LPLINE lpLine, HWND hWndDoc, HDC hDC)
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{
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switch (lpLine->m_lineType) {
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case TEXTLINETYPE:
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return TextLine_Edit((LPTEXTLINE)lpLine, hWndDoc, hDC);
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#if defined( OLE_CNTR )
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case CONTAINERLINETYPE:
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ContainerLine_Edit((LPCONTAINERLINE)lpLine, hWndDoc, hDC);
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break;
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#endif
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default:
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return FALSE; // unknown line type
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}
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}
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/* Line_GetLineType
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* ----------------
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*
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* Return type of the line
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*/
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LINETYPE Line_GetLineType(LPLINE lpLine)
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{
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if (! lpLine) return 0;
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return lpLine->m_lineType;
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}
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/* Line_GetTextLen
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* ---------------
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*
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* Return length of string representation of the Line
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* (not considering the tab level).
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*/
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int Line_GetTextLen(LPLINE lpLine)
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{
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switch (lpLine->m_lineType) {
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case TEXTLINETYPE:
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return TextLine_GetTextLen((LPTEXTLINE)lpLine);
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#if defined( OLE_CNTR )
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case CONTAINERLINETYPE:
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return ContainerLine_GetTextLen((LPCONTAINERLINE)lpLine);
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#endif
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default:
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return 0; // unknown line type
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}
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}
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/* Line_GetTextData
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* ----------------
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*
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* Return the string representation of the Line.
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* (not considering the tab level).
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*/
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void Line_GetTextData(LPLINE lpLine, LPSTR lpszBuf)
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{
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switch (lpLine->m_lineType) {
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case TEXTLINETYPE:
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TextLine_GetTextData((LPTEXTLINE)lpLine, lpszBuf);
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break;
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#if defined( OLE_CNTR )
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case CONTAINERLINETYPE:
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ContainerLine_GetTextData((LPCONTAINERLINE)lpLine, lpszBuf);
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break;
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#endif
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default:
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*lpszBuf = '\0';
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return; // unknown line type
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}
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}
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/* Line_GetOutlineData
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* -------------------
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*
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* Return the CF_OUTLINE format representation of the Line.
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*/
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BOOL Line_GetOutlineData(LPLINE lpLine, LPTEXTLINE lpBuf)
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{
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switch (lpLine->m_lineType) {
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case TEXTLINETYPE:
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return TextLine_GetOutlineData((LPTEXTLINE)lpLine, lpBuf);
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#if defined( OLE_CNTR )
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case CONTAINERLINETYPE:
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return ContainerLine_GetOutlineData(
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(LPCONTAINERLINE)lpLine,
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lpBuf
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);
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#endif
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default:
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return FALSE; // unknown line type
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}
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}
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/* Line_CalcTabWidthInHimetric
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* ---------------------------
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*
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* Recalculate the width for the line's current tab level
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*/
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static int Line_CalcTabWidthInHimetric(LPLINE lpLine, HDC hDC)
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{
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int nTabWidthInHimetric;
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nTabWidthInHimetric=lpLine->m_nTabLevel * TABWIDTH;
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return nTabWidthInHimetric;
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}
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/* Line_Indent
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* -----------
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*
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* Increment the tab level for the line
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*/
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void Line_Indent(LPLINE lpLine, HDC hDC)
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{
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lpLine->m_nTabLevel++;
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lpLine->m_nTabWidthInHimetric = Line_CalcTabWidthInHimetric(lpLine, hDC);
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#if defined( INPLACE_CNTR )
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if (Line_GetLineType(lpLine) == CONTAINERLINETYPE)
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ContainerLine_UpdateInPlaceObjectRects((LPCONTAINERLINE)lpLine, NULL);
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#endif
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}
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/* Line_Unindent
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* -------------
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*
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* Decrement the tab level for the line
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*/
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void Line_Unindent(LPLINE lpLine, HDC hDC)
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{
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if(lpLine->m_nTabLevel > 0) {
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lpLine->m_nTabLevel--;
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lpLine->m_nTabWidthInHimetric = Line_CalcTabWidthInHimetric(lpLine, hDC);
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}
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#if defined( INPLACE_CNTR )
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if (Line_GetLineType(lpLine) == CONTAINERLINETYPE)
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ContainerLine_UpdateInPlaceObjectRects((LPCONTAINERLINE)lpLine, NULL);
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#endif
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}
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/* Line_GetTotalWidthInHimetric
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* ----------------------------
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*
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* Calculate the total width of the line
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*/
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UINT Line_GetTotalWidthInHimetric(LPLINE lpLine)
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{
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return lpLine->m_nWidthInHimetric + lpLine->m_nTabWidthInHimetric;
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}
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/* Line_SetWidthInHimetric
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* -----------------------
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*
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* Set the width of the line
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*/
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void Line_SetWidthInHimetric(LPLINE lpLine, int nWidth)
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{
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if (!lpLine)
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return;
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lpLine->m_nWidthInHimetric = nWidth;
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}
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/* Line_GetWidthInHimetric
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* -----------------------
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*
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* Return the width of the line
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*/
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UINT Line_GetWidthInHimetric(LPLINE lpLine)
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{
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if (!lpLine)
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return 0;
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return lpLine->m_nWidthInHimetric;
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}
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/* Line_GetTabLevel
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* ----------------
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*
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* Return the tab level of a line object.
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*/
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UINT Line_GetTabLevel(LPLINE lpLine)
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{
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return lpLine->m_nTabLevel;
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}
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/* Line_DrawToScreen
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* -----------------
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*
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* Draw the item in the owner-draw listbox
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*/
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void Line_DrawToScreen(
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LPLINE lpLine,
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HDC hDC,
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LPRECT lprcPix,
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UINT itemAction,
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UINT itemState,
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LPRECT lprcDevice
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)
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{
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if (!lpLine || !hDC || !lprcPix || !lprcDevice)
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return;
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/* Draw a list box item in its normal drawing action.
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* Then check if it is selected or has the focus state, and call
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* functions to handle drawing for these states if necessary.
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*/
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if(itemAction & (ODA_SELECT | ODA_DRAWENTIRE)) {
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HFONT hfontOld;
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int nMapModeOld;
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RECT rcWindowOld;
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RECT rcViewportOld;
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RECT rcLogical;
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// NOTE: we have to set the device context to HIMETRIC in order
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// draw the line; however, we have to restore the HDC before
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// we draw focus or dragfeedback...
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rcLogical.left = 0;
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rcLogical.bottom = 0;
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rcLogical.right = lpLine->m_nWidthInHimetric;
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rcLogical.top = lpLine->m_nHeightInHimetric;
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{
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HBRUSH hbr;
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RECT rcDraw;
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lpLine->m_fSelected = (BOOL)(itemState & ODS_SELECTED);
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if (ODS_SELECTED & itemState) {
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/*Get proper txt colors */
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hbr = CreateSolidBrush(GetSysColor(COLOR_HIGHLIGHT));
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}
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else {
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hbr = CreateSolidBrush(GetSysColor(COLOR_WINDOW));
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}
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rcDraw = *lprcPix;
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rcDraw.right = lprcDevice->left;
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FillRect(hDC, lprcPix, hbr);
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rcDraw = *lprcPix;
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rcDraw.left = lprcDevice->right;
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FillRect(hDC, lprcPix, hbr);
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DeleteObject(hbr);
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}
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nMapModeOld=SetDCToAnisotropic(hDC, lprcDevice, &rcLogical,
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(LPRECT)&rcWindowOld, (LPRECT)&rcViewportOld);
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// Set the default font size, and font face name
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hfontOld = SelectObject(hDC, OutlineApp_GetActiveFont(g_lpApp));
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Line_Draw(lpLine, hDC, &rcLogical, NULL, (ODS_SELECTED & itemState));
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SelectObject(hDC, hfontOld);
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ResetOrigDC(hDC, nMapModeOld, (LPRECT)&rcWindowOld,
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(LPRECT)&rcViewportOld);
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#if defined( OLE_CNTR )
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if ((itemState & ODS_SELECTED) &&
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(Line_GetLineType(lpLine)==CONTAINERLINETYPE))
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ContainerLine_DrawSelHilight(
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(LPCONTAINERLINE)lpLine,
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hDC,
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lprcPix,
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ODA_SELECT,
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ODS_SELECTED
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);
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#endif
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}
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/* If a list box item just gained or lost the focus,
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* call function (which could check if ODS_FOCUS bit is set)
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* and draws item in focus or non-focus state.
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*/
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if(itemAction & ODA_FOCUS )
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Line_DrawFocusRect(lpLine, hDC, lprcPix, itemAction, itemState);
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#if defined( OLE_CNTR )
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if (Line_GetLineType(lpLine) == CONTAINERLINETYPE) {
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LPCONTAINERLINE lpContainerLine = (LPCONTAINERLINE)lpLine;
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LPCONTAINERDOC lpDoc = lpContainerLine->m_lpDoc;
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BOOL fIsLink;
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RECT rcObj;
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if (ContainerDoc_GetShowObjectFlag(lpDoc)) {
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ContainerLine_GetOleObjectRectInPixels(lpContainerLine, &rcObj);
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fIsLink = ContainerLine_IsOleLink(lpContainerLine);
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OleUIShowObject(&rcObj, hDC, fIsLink);
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}
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}
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#endif
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#if defined( USE_DRAGDROP )
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if (lpLine->m_fDragOverLine)
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Line_DrawDragFeedback(lpLine, hDC, lprcPix, itemState );
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#endif
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}
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/* Line_Draw
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* ---------
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*
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* Draw a line on a DC.
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*
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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 rect in logical coordinates
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*/
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void Line_Draw(
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LPLINE lpLine,
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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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switch (lpLine->m_lineType) {
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case TEXTLINETYPE:
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TextLine_Draw(
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(LPTEXTLINE)lpLine, hDC, lpRect,lpRectWBounds,fHighlight);
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break;
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#if defined( OLE_CNTR )
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case CONTAINERLINETYPE:
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ContainerLine_Draw(
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(LPCONTAINERLINE)lpLine,hDC,lpRect,lpRectWBounds,fHighlight);
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break;
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#endif
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default:
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return; // unknown line type
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}
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return;
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}
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/* Line_DrawSelHilight
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* -------------------
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*
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* Handles selection of list box item
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*/
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void Line_DrawSelHilight(LPLINE lpLine, HDC hDC, LPRECT lpRect, UINT itemAction, UINT itemState)
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{
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switch (lpLine->m_lineType) {
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case TEXTLINETYPE:
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TextLine_DrawSelHilight((LPTEXTLINE)lpLine, hDC, lpRect,
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itemAction, itemState);
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break;
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#if defined( OLE_CNTR )
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case CONTAINERLINETYPE:
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ContainerLine_DrawSelHilight((LPCONTAINERLINE)lpLine, hDC, lpRect,
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itemAction, itemState);
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break;
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#endif
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default:
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return; // unknown line type
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}
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return;
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}
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/* Line_DrawFocusRect
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* ------------------
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*
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* Handles focus state of list box item
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*/
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void Line_DrawFocusRect(LPLINE lpLine, HDC hDC, LPRECT lpRect, UINT itemAction, UINT itemState)
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{
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if(lpLine)
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DrawFocusRect(hDC, lpRect);
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}
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#if defined( USE_DRAGDROP )
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/* Line_DrawDragFeedback
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* ---------------------
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*
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* Handles focus state of list box item
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*/
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void Line_DrawDragFeedback(LPLINE lpLine, HDC hDC, LPRECT lpRect, UINT itemState )
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{
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if(lpLine)
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DrawFocusRect(hDC, lpRect);
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}
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#endif // USE_DRAGDROP
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/* Line_GetHeightInHimetric
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* ------------------------
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*
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* Return the height of the item in HIMETRIC units
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*/
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UINT Line_GetHeightInHimetric(LPLINE lpLine)
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{
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if (!lpLine)
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return 0;
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return (UINT)lpLine->m_nHeightInHimetric;
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}
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/* Line_SetHeightInHimetric
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* ------------------------
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*
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* Set the height of the item in HIMETRIC units.
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*/
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void Line_SetHeightInHimetric(LPLINE lpLine, int nHeight)
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{
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if (!lpLine)
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return;
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switch (lpLine->m_lineType) {
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case TEXTLINETYPE:
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TextLine_SetHeightInHimetric((LPTEXTLINE)lpLine, nHeight);
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break;
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#if defined( OLE_CNTR )
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case CONTAINERLINETYPE:
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ContainerLine_SetHeightInHimetric((LPCONTAINERLINE)lpLine,
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nHeight);
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break;
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#endif
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}
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}
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/* Line_Delete
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* -----------
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*
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* Delete the Line structure
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*/
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void Line_Delete(LPLINE lpLine)
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{
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switch (lpLine->m_lineType) {
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case TEXTLINETYPE:
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TextLine_Delete((LPTEXTLINE)lpLine);
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break;
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#if defined( OLE_CNTR )
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case CONTAINERLINETYPE:
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ContainerLine_Delete((LPCONTAINERLINE)lpLine);
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break;
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#endif
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default:
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break; // unknown line type
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}
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}
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/* Line_CopyToDoc
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* --------------
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*
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* Copy a line to another Document (usually ClipboardDoc)
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*/
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BOOL Line_CopyToDoc(LPLINE lpSrcLine, LPOUTLINEDOC lpDestDoc, int nIndex)
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{
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switch (lpSrcLine->m_lineType) {
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case TEXTLINETYPE:
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return TextLine_CopyToDoc((LPTEXTLINE)lpSrcLine,lpDestDoc,nIndex);
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break;
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#if defined( OLE_CNTR )
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case CONTAINERLINETYPE:
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return ContainerLine_CopyToDoc(
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(LPCONTAINERLINE)lpSrcLine,
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lpDestDoc,
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nIndex
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);
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break;
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#endif
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default:
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return FALSE; // unknown line type
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}
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}
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|
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|
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/* Line_SaveToStg
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* --------------
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*
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* Save a single line object to 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 Line_SaveToStg(LPLINE lpLine, UINT uFormat, LPSTORAGE lpSrcStg, LPSTORAGE lpDestStg, LPSTREAM lpLLStm, BOOL fRemember)
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{
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LINERECORD_ONDISK lineRecord;
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ULONG nWritten;
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HRESULT hrErr;
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BOOL fStatus;
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LARGE_INTEGER dlibSavePos;
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LARGE_INTEGER dlibZeroOffset;
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LISet32( dlibZeroOffset, 0 );
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/* save seek position before line record is written in case of error */
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hrErr = lpLLStm->lpVtbl->Seek(
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lpLLStm,
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dlibZeroOffset,
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STREAM_SEEK_CUR,
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(ULARGE_INTEGER FAR*)&dlibSavePos
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);
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if (hrErr != NOERROR) return FALSE;
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|
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#if defined( OLE_CNTR )
|
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if (lpLine->m_lineType == CONTAINERLINETYPE) {
|
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/* OLE2NOTE: asking an OLE object to save may cause the
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** object to send an OnViewChange notification if there are any
|
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** outstanding changes to the object. this is particularly true
|
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** for objects with coarse update granularity like OLE 1.0
|
|
** objects. if an OnViewChange notification is received then the
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** object's presentation cache will be updated BEFORE it is
|
|
** saved. It is important that the extents stored as part of
|
|
** the ContainerLine/Line record associated with the OLE object
|
|
** are updated before the Line data is saved to the storage. it
|
|
** is important that this extent information matches the data
|
|
** saved with the OLE object. the Line extent information is
|
|
** updated in the IAdviseSink::OnViewChange method implementation.
|
|
*/
|
|
// only save the OLE object if format is compatible.
|
|
if (uFormat != ((LPCONTAINERAPP)g_lpApp)->m_cfCntrOutl)
|
|
goto error;
|
|
|
|
fStatus = ContainerLine_SaveOleObjectToStg(
|
|
(LPCONTAINERLINE)lpLine,
|
|
lpSrcStg,
|
|
lpDestStg,
|
|
fRemember
|
|
);
|
|
if (! fStatus) goto error;
|
|
}
|
|
#endif
|
|
|
|
// Compilers should handle aligment correctly
|
|
lineRecord.m_lineType = (USHORT) lpLine->m_lineType;
|
|
lineRecord.m_nTabLevel = (USHORT) lpLine->m_nTabLevel;
|
|
lineRecord.m_nTabWidthInHimetric = (USHORT) lpLine->m_nTabWidthInHimetric;
|
|
lineRecord.m_nWidthInHimetric = (USHORT) lpLine->m_nWidthInHimetric;
|
|
lineRecord.m_nHeightInHimetric = (USHORT) lpLine->m_nHeightInHimetric;
|
|
lineRecord.m_reserved = 0;
|
|
|
|
/* write line record header */
|
|
hrErr = lpLLStm->lpVtbl->Write(
|
|
lpLLStm,
|
|
(LPVOID)&lineRecord,
|
|
sizeof(lineRecord),
|
|
&nWritten
|
|
);
|
|
|
|
if (hrErr != NOERROR) {
|
|
OleDbgOutHResult("Write Line header returned", hrErr);
|
|
goto error;
|
|
}
|
|
|
|
switch (lpLine->m_lineType) {
|
|
case TEXTLINETYPE:
|
|
fStatus = TextLine_SaveToStm((LPTEXTLINE)lpLine, lpLLStm);
|
|
if (! fStatus) goto error;
|
|
break;
|
|
|
|
#if defined( OLE_CNTR )
|
|
case CONTAINERLINETYPE:
|
|
fStatus=ContainerLine_SaveToStm((LPCONTAINERLINE)lpLine,lpLLStm);
|
|
if (! fStatus) goto error;
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
goto error; // unknown line type
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
error:
|
|
|
|
/* retore seek position prior to writing Line record */
|
|
lpLLStm->lpVtbl->Seek(
|
|
lpLLStm,
|
|
dlibSavePos,
|
|
STREAM_SEEK_SET,
|
|
NULL
|
|
);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
/* Line_LoadFromStg
|
|
* ----------------
|
|
*
|
|
* Load a single line object from storage
|
|
*/
|
|
LPLINE Line_LoadFromStg(LPSTORAGE lpSrcStg, LPSTREAM lpLLStm, LPOUTLINEDOC lpDestDoc)
|
|
{
|
|
LINERECORD_ONDISK lineRecord;
|
|
LPLINE lpLine = NULL;
|
|
ULONG nRead;
|
|
HRESULT hrErr;
|
|
|
|
/* read line record header */
|
|
hrErr = lpLLStm->lpVtbl->Read(
|
|
lpLLStm,
|
|
(LPVOID)&lineRecord,
|
|
sizeof(lineRecord),
|
|
&nRead
|
|
);
|
|
|
|
if (hrErr != NOERROR) {
|
|
OleDbgOutHResult("Read Line header returned", hrErr);
|
|
return NULL;
|
|
}
|
|
|
|
switch ((LINETYPE) lineRecord.m_lineType) {
|
|
case TEXTLINETYPE:
|
|
lpLine = TextLine_LoadFromStg(lpSrcStg, lpLLStm, lpDestDoc);
|
|
break;
|
|
|
|
#if defined( OLE_CNTR )
|
|
case CONTAINERLINETYPE:
|
|
lpLine = ContainerLine_LoadFromStg(lpSrcStg, lpLLStm, lpDestDoc);
|
|
break;
|
|
#endif
|
|
|
|
default:
|
|
return NULL; // unknown line type
|
|
}
|
|
|
|
lpLine->m_lineType = (LINETYPE) lineRecord.m_lineType;
|
|
lpLine->m_nTabLevel = (UINT) lineRecord.m_nTabLevel;
|
|
lpLine->m_nTabWidthInHimetric = (UINT) lineRecord.m_nTabWidthInHimetric;
|
|
lpLine->m_nWidthInHimetric = (UINT) lineRecord.m_nWidthInHimetric;
|
|
lpLine->m_nHeightInHimetric = (UINT) lineRecord.m_nHeightInHimetric;
|
|
|
|
return lpLine;
|
|
}
|
|
|
|
|
|
/* Line_IsSelected
|
|
* ---------------
|
|
*
|
|
* Return the selection state of the line
|
|
*/
|
|
BOOL Line_IsSelected(LPLINE lpLine)
|
|
{
|
|
if (!lpLine)
|
|
return FALSE;
|
|
|
|
return lpLine->m_fSelected;
|
|
}
|