tlpaint.c

PGP8.0源码 请认真阅读您的文件包然后写出其具体功能

{
	HBRUSH			oldbrush, bgbrush, fgbrush, barbrush;
	INT				iBCent, iBMPos;
	HPEN			oldpen, textpen;
	SIZE			s;
	INT				ix, iy, cx, xoffset;
	TLColumnItem*	pci;
	TLListItem*		pli;
	RECT			rc;
	DOTTEDSTRUCT	DottedStruct;
	double			f;
	WCHAR			wsz[TRUNCBUFSIZE];
	BOOL			bEnabled;

	bEnabled = IsWindowEnabled (pWD->hWnd);

	iBCent = pWD->iBCent;
	iBMPos = pWD->iBMPos;
	DottedStruct.hDC = hdc;

	xoffset = indent - pWD->iHorizontalPos;

	while (p) 
	{
		//  increment item count
		(*item)++;
		//  check if items are visible in window
		if ((*item) > (pWD->iFirstRow + pWD->iMaxRows + 2)) 
			break;

		if ((*item) > pWD->iFirstRow) 
		{
			//  first paint the tree items  ...
			//  select colors based on state of tree item
			if (!bEnabled)
			{
				bgbrush = pWD->unfocusbgbrush;
				fgbrush = pWD->unselfgbrush;
				textpen = pWD->unseltextpen;
				DottedStruct.dwDottedColor = pWD->unselfocuscolor;
				pWD->textbgcolor = GetSysColor (COLOR_BTNFACE);
				SetTextColor (hdc, GetSysColor (COLOR_WINDOWTEXT));
			}
			else if (pWD->bTreeFocused) 
			{
				if (p->state & TLIS_SELECTED)
				{
					bgbrush = pWD->selbgbrush;
					fgbrush = pWD->selfgbrush;
					textpen = pWD->seltextpen;
					DottedStruct.dwDottedColor = pWD->selfocuscolor;
					pWD->textbgcolor = GetSysColor (COLOR_HIGHLIGHT);
					SetTextColor (hdc, GetSysColor (COLOR_HIGHLIGHTTEXT));
				}
				else 
				{
					bgbrush = pWD->unselbgbrush;
					fgbrush = pWD->unselfgbrush;
					textpen = pWD->unseltextpen;
					DottedStruct.dwDottedColor = pWD->unselfocuscolor;
					pWD->textbgcolor = GetSysColor (COLOR_WINDOW);
					SetTextColor (hdc, GetSysColor (COLOR_WINDOWTEXT));
				}
			}
			else 
			{
				if ((p->state & (TLIS_SELECTED|TLIS_DRAGGEDOVER)) &&
						(pWD->style & TLS_SHOWSELECTIONALWAYS)) 
				{
					bgbrush = pWD->unfocusbgbrush;
					fgbrush = pWD->unselfgbrush;
					textpen = pWD->unseltextpen;
					DottedStruct.dwDottedColor = pWD->unselfocuscolor;
					pWD->textbgcolor = GetSysColor (COLOR_BTNFACE);
					SetTextColor (hdc, GetSysColor (COLOR_WINDOWTEXT));
				}
				else 
				{
					bgbrush = pWD->unselbgbrush;
					fgbrush = pWD->unselfgbrush;
					textpen = pWD->unseltextpen;
					DottedStruct.dwDottedColor = pWD->unselfocuscolor;
					pWD->textbgcolor = GetSysColor (COLOR_WINDOW);
					SetTextColor (hdc, GetSysColor (COLOR_WINDOWTEXT));
				}
			}
			SetBkColor (hdc, pWD->textbgcolor);

			//  set rectangle coordinates
			//  rectangle sensitive to "selection" mouse clicks
			p->selectRect.left = xoffset + BUTTONWIDTH;
			p->selectRect.right = pWD->tlInval.right;
			p->selectRect.top = *y+1;
			p->selectRect.bottom = p->selectRect.top + pWD->iRowHeight;

			//  rectangle sensitive to "button" mouse clicks
			if (p->cChildren && (pWD->style & TLS_HASBUTTONS)) 
			{
				p->buttonRect.left = xoffset;
				p->buttonRect.right = p->buttonRect.left + BUTTONWIDTH;
				p->buttonRect.top = *y;
				p->buttonRect.bottom = p->buttonRect.top + pWD->iRowHeight;
			}
			else
			{
				p->buttonRect.left = xoffset + BUTTONWIDTH;
				p->buttonRect.right = xoffset + BUTTONWIDTH;
				p->buttonRect.top = *y;
				p->buttonRect.bottom = 0;
			}

			//  rectangle which is highlighted when item is selected
			p->hiliteRect.left =
					min (xoffset + BUTTONWIDTH+BITMAPWIDTH+HTEXTSHIFT,
					pWD->iFirstColumnWidth);
			p->hiliteRect.top = *y+1;
			p->hiliteRect.bottom = p->selectRect.top + pWD->iRowHeight;

			if (p->state & TLIS_BOLD) 
				SelectObject (hdc, pWD->hFontBold);
			else if (p->state & TLIS_ITALICS)
				SelectObject (hdc, pWD->hFontItalic);
			else 
				SelectObject (hdc, pWD->hFont);

			sGetWideText (p->pszText, wsz, sizeof(wsz));
			if (sTruncateText (hdc, wsz,
					pWD->iFirstColumnWidth-
					(indent + BUTTONWIDTH+BITMAPWIDTH+HTEXTSHIFT)))
			{
				p->state |= TLIS_TRUNCATED;
			}
			else
				p->state &= ~TLIS_TRUNCATED;

			GetTextExtentPoint32W (hdc, wsz, lstrlenW (wsz), &s);
			p->hiliteRect.right = p->hiliteRect.left + s.cx + HTEXTSHIFT;
			pli = p->listItem;
			pci = pWD->columnItem;
			ix = pWD->iFirstColumnWidth;
			while (pci && pli) 
			{
				ix += pci->cx;
				if (pli->state & TLIS_VISIBLE) p->hiliteRect.right = ix;
				pci = pci->nextItem;
				pli = pli->nextItem;
			}

			//  if focused, draw box
			if (bgbrush != pWD->unselbgbrush)
				FillRect (hdc, &p->hiliteRect, bgbrush);

			if (pWD->bTreeFocused)
			{
				if ((p->state & TLIS_FOCUSED) ||
					(p->state & TLIS_DRAGGEDOVER))
				{
					LineDDA (p->hiliteRect.left, p->hiliteRect.top,
							 p->hiliteRect.right-1, p->hiliteRect.top,
							 (LINEDDAPROC)sDottedLineProc, 
							 (LPARAM)&DottedStruct);
					LineDDA (p->hiliteRect.right-1, p->hiliteRect.top,
							 p->hiliteRect.right-1, p->hiliteRect.bottom-1,
							 (LINEDDAPROC)sDottedLineProc, 
							 (LPARAM)&DottedStruct);
					LineDDA (p->hiliteRect.right-1, p->hiliteRect.bottom-1,
							 p->hiliteRect.left, p->hiliteRect.bottom-1,
							 (LINEDDAPROC)sDottedLineProc, 
							 (LPARAM)&DottedStruct);
					LineDDA (p->hiliteRect.left, p->hiliteRect.bottom-1,
							 p->hiliteRect.left, p->hiliteRect.top,
							 (LINEDDAPROC)sDottedLineProc, 
							 (LPARAM)&DottedStruct);
				}
				else if (p->state & TLIS_DRAGGEDBEFORE)
				{
					oldpen = SelectObject (hdc, pWD->unseltextpen);
					MoveToEx (hdc, p->selectRect.left, 
							p->selectRect.top, NULL);
					LineTo (hdc, p->selectRect.right-BUTTONWIDTH, 
							p->selectRect.top);
					SelectObject (hdc, oldpen);
				}
				else if (p->state & TLIS_DRAGGEDAFTER)
				{
					oldpen = SelectObject (hdc, pWD->unseltextpen);
					MoveToEx (hdc, p->selectRect.left, 
							p->selectRect.bottom-1, NULL);
					LineTo (hdc, p->selectRect.right-BUTTONWIDTH, 
							p->selectRect.bottom-1);
					SelectObject (hdc, oldpen);
				}
			}

			//  draw tree item text
			iy = p->hiliteRect.top + TEXTVERTOFF;
			SetTextAlign (hdc, TA_LEFT);
			TextOutW (hdc, p->hiliteRect.left+2, iy, wsz, lstrlenW(wsz));

			//  draw tree item bitmap, if there is space
			if (pWD->iFirstColumnWidth >= (p->buttonRect.right+BITMAPWIDTH)) 
			{
				ImageList_Draw (pWD->hImageList, p->iImage, hdc,
						p->buttonRect.right, p->hiliteRect.top+iBMPos,
						ILD_TRANSPARENT);
			}

			//  paint list items based on their data type
			SelectObject (hdc, pWD->hFont);
			pli = p->listItem;
			pci = pWD->columnItem;
			ix = pWD->iFirstColumnWidth - pWD->iHorizontalPos;

			while (pci && pli)
			{
				if (pli->state & TLIS_VISIBLE) 
				{
					switch (pci->iDataType) {
					case TLC_DATANONE :
						break;

					case TLC_DATASTRING :
						sGetWideText (pli->pszText, wsz, sizeof(wsz));
						if (sTruncateText (hdc, wsz, pci->cx))
							pli->state |= TLIS_TRUNCATED;
						else
							pli->state &= ~TLIS_TRUNCATED;

						SetBkColor (hdc, pWD->textbgcolor);

						switch (pci->iDataFmt) {
						case TLCFMT_LEFT :
							SetTextAlign (hdc, TA_LEFT);
							TextOutW (hdc, ix+6, iy,
									wsz, lstrlenW(wsz));
							break;

						case TLCFMT_CENTER :
							SetTextAlign (hdc, TA_CENTER);
							TextOutW (hdc, ix + (pci->cx>>1), iy,
									wsz, lstrlenW(wsz));
							break;

						case TLCFMT_RIGHT :
							SetTextAlign (hdc, TA_RIGHT);
							TextOutW (hdc, ix + pci->cx - 6, iy,
									wsz, lstrlenW(wsz));
							break;
						}
						break;

					case TLC_DATALONG :
						switch (pci->iDataFmt) {
						case TLCFMT_LINBAR :
							cx = pci->cx - BARCOLUMNDIFF;
							if (cx <= 0) 
								break;

							rc.left = ix + HBARSHIFT;
							rc.top = iy + VBARSHIFT +1;
							rc.right = ix + pci->cx - HBARSHIFT -1;
							rc.bottom = iy+pWD->iRowHeight-(VBARSHIFT+2) -1;
							oldbrush = SelectObject (hdc, pWD->barbgbrush);
							oldpen = SelectObject (hdc, pWD->buttonpen);
							Rectangle (hdc, rc.left - 1, rc.top - 1,
									rc.right + 2, rc.bottom + 2);

							SelectObject (hdc, pWD->shadowpen);
							MoveToEx (hdc, rc.left, rc.bottom, NULL);
							LineTo (hdc, rc.left, rc.top);
							LineTo (hdc, rc.right, rc.top);

							SelectObject (hdc, pWD->hilightpen);
							LineTo (hdc, rc.right, rc.bottom);
							LineTo (hdc, rc.left, rc.bottom);

							if (pci->lMaxValue != 0) 
							{
								if (pli->lDataValue > pci->lMaxValue) 
								{
									barbrush = pWD->spcbarbrush;
									rc.right = rc.left + cx;
								}
								else 
								{
									barbrush = pWD->stdbarbrush;
									rc.right = rc.left +
										(int)(((float)pli->lDataValue /
											(float)pci->lMaxValue)
											* (float)cx);
								}
							}
							else
								rc.right = rc.left;

							rc.top++;
							rc.left++;

							if (rc.right > rc.left) 
							{
								SetBkColor (hdc, pWD->barcolor);
								FillRect (hdc, &rc, barbrush);

								rc.top--;
								rc.left--;

								// hilight pen already selected
								MoveToEx (hdc, rc.right, rc.top, NULL);
								LineTo (hdc, rc.left, rc.top);
								LineTo (hdc, rc.left,rc.bottom);

								SelectObject (hdc, pWD->shadowpen);
								LineTo (hdc, rc.right, rc.bottom);
								LineTo (hdc, rc.right, rc.top);
							}

							SelectObject (hdc, oldbrush);
							SelectObject (hdc, oldpen);
							break;

						case TLCFMT_LOGBAR :
							rc.left = ix + HBARSHIFT;
							rc.top = iy + VBARSHIFT +1;
							rc.right = ix + pci->cx - HBARSHIFT -1;
							rc.bottom = iy+pWD->iRowHeight-(VBARSHIFT+2) -1;
							oldbrush = SelectObject (hdc, pWD->barbgbrush);
							oldpen = SelectObject (hdc, pWD->buttonpen);
							Rectangle (hdc, rc.left - 1, rc.top - 1,
									rc.right + 2, rc.bottom + 2);

							SelectObject (hdc, pWD->shadowpen);
							MoveToEx (hdc, rc.left, rc.bottom, NULL);
							LineTo (hdc, rc.left, rc.top);
							LineTo (hdc, rc.right, rc.top);

							SelectObject (hdc, pWD->hilightpen);
							LineTo (hdc, rc.right, rc.bottom);
							LineTo (hdc, rc.left, rc.bottom);

							if (pci->lMaxValue != 0) 
							{
								if (pli->lDataValue > pci->lMaxValue)
								{
									barbrush = pWD->spcbarbrush;
									rc.right = rc.left + cx;
								}
								else 
								{
									barbrush = pWD->stdbarbrush;
									f = (float)pli->lDataValue /
										(float)pci->lMaxValue;
									f += 1.0;
									f = log (f) / log (2.0);
									rc.right = rc.left + (int)(f * (float)cx);
								}
							}
							else
								rc.right = rc.left;

							rc.top++;
							rc.left++;

							if (rc.right > rc.left) 
							{
								SetBkColor (hdc, pWD->barcolor);
								FillRect (hdc, &rc, barbrush);

								rc.top--;
								rc.left--;

								// hilight pen already selected
								MoveToEx (hdc, rc.right, rc.top, NULL);
								LineTo (hdc, rc.left, rc.top);
								LineTo (hdc, rc.left,rc.bottom);

								SelectObject (hdc, pWD->shadowpen);
								LineTo (hdc, rc.right, rc.bottom);
								LineTo (hdc, rc.right, rc.top);
							}

							SelectObject (hdc, oldbrush);
							SelectObject (hdc, oldpen);
							break;

						case TLCFMT_IMAGE :
							// use text if available
							if (pli->pszText) 
							{
								sGetWideText (pli->pszText, wsz, sizeof(wsz));
								if (sTruncateText (hdc, wsz, pci->cx))
									pli->state |= TLIS_TRUNCATED;
								else
									pli->state &= ~TLIS_TRUNCATED;

								SetBkColor (hdc, pWD->textbgcolor);
								SetTextAlign (hdc, TA_CENTER);
								TextOutW (hdc, ix + (pci->cx>>1), iy,
													wsz, lstrlenW(wsz));
							}
							// otherwise paint image
							else 
							{
								if (pci->cx >= (BITMAPWIDTH)) 
								{
									int	i = 0;
									WORD wCur = LOWORD (pli->lDataValue);

									if ((pWD->bStepAnimation) &&
										(pli->state & TLIS_ANIMATED)) 
									{
										int iLim;

										pWD->bContAnimation = TRUE;

										iLim = HIBYTE(HIWORD(pli->lDataValue));
										wCur = LOWORD(++(pli->lDataValue));

										if (wCur > iLim) {
											wCur =
												LOBYTE(HIWORD(pli->lDataValue));
											pli->lDataValue =
												MAKELONG (wCur,
													HIWORD(pli->lDataValue));
										}
									}
									else 
									{
										if (pli->state & TLIS_CLICKED) 
											i = 1;
									}

									ImageList_Draw (pWD->hImageList,
											(wCur + i), hdc,
											ix + pci->cxImageOffset,
											p->hiliteRect.top+iBMPos,
											ILD_TRANSPARENT);
								}
							}
							break;

						case TLCFMT_IMAGELIST :
						{
							int iImage = 0;
							int iXpos = 0;
							ULONG uImageMask = 1;

							// first paint images
							while (!(uImageMask & 0x80000000)) 
							{
								if (pli->lDataValue & uImageMask)
								{
									if ((iXpos+BITMAPWIDTH) <= pci->cx)
									{
										ImageList_Draw (pWD->hImageList,
												iImage, hdc,
												ix + iXpos,
												p->hiliteRect.top+iBMPos,
												ILD_TRANSPARENT);
										iXpos +=
												(BITMAPWIDTH + BITMAPSPACE);
									}
									else 
									{
										lstrcpyW (wsz, L"...");
										sTruncateText (hdc, wsz, pci->cx);
										SetBkColor (hdc,
												pWD->textbgcolor);
										SetTextAlign (hdc, TA_LEFT);
										TextOutW (hdc, ix + iXpos,
												iy, wsz, lstrlenW(wsz));
									}
								}

								uImageMask <<= 1;
								iImage++;
							}

							// then draw text if available
							if (pli->pszText) 
							{
								sGetWideText (pli->pszText, wsz, sizeof(wsz));
								if (sTruncateText (hdc, 
										wsz, (pci->cx - iXpos)))
								{
									pli->state |= TLIS_TRUNCATED;
								}
								else
									pli->state &= ~TLIS_TRUNCATED;

								SetBkColor (hdc, pWD->textbgcolor);
								SetTextAlign (hdc, TA_LEFT);
								TextOutW (hdc, ix + iXpos, iy,
										wsz, lstrlenW(wsz));
							}
							break;
						}

						case TLCFMT_HIMAGELIST :
						{
							int iXpos = 0;