From 3d3ab2242fdf0b292650360958cf14a2a6c2c8a0 Mon Sep 17 00:00:00 2001 From: Kurt Zenker Date: Wed, 25 Feb 2004 16:10:09 +0000 Subject: INTEGRATION: CWS layoutmanager (1.1.2); FILE ADDED 2004/02/02 17:02:48 abi 1.1.2.2: tracker fixed 2004/02/02 09:13:58 abi 1.1.2.1: recttracker with win32-api --- embedserv/source/embed/tracker.cxx | 862 +++++++++++++++++++++++++++++++++++++ 1 file changed, 862 insertions(+) create mode 100644 embedserv/source/embed/tracker.cxx (limited to 'embedserv') diff --git a/embedserv/source/embed/tracker.cxx b/embedserv/source/embed/tracker.cxx new file mode 100644 index 000000000000..599f7be39ed1 --- /dev/null +++ b/embedserv/source/embed/tracker.cxx @@ -0,0 +1,862 @@ +/************************************************************************* + * + * $RCSfile: tracker.cxx,v $ + * + * $Revision: 1.2 $ + * + * last change: $Author: kz $ $Date: 2004-02-25 17:10:09 $ + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (the "License"); You may not use this file + * except in compliance with the License. You may obtain a copy of the + * License at http://www.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: Sun Microsystems, Inc. + * + * Copyright: 2000 by Sun Microsystems, Inc. + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ + +#include +#include "syswinwrapper.hxx" + + +HCURSOR _afxCursors[10] = { 0, }; +HBRUSH _afxHalftoneBrush = 0; + + +// the struct below is used to determine the qualities of a particular handle +struct AFX_HANDLEINFO +{ + size_t nOffsetX; // offset within RECT for X coordinate + size_t nOffsetY; // offset within RECT for Y coordinate + int nCenterX; // adjust X by Width()/2 * this number + int nCenterY; // adjust Y by Height()/2 * this number + int nHandleX; // adjust X by handle size * this number + int nHandleY; // adjust Y by handle size * this number + int nInvertX; // handle converts to this when X inverted + int nInvertY; // handle converts to this when Y inverted +}; + +// this array describes all 8 handles (clock-wise) +const AFX_HANDLEINFO _afxHandleInfo[] = +{ + // corner handles (top-left, top-right, bottom-right, bottom-left + { offsetof(RECT, left), offsetof(RECT, top), 0, 0, 0, 0, 1, 3 }, + { offsetof(RECT, right), offsetof(RECT, top), 0, 0, -1, 0, 0, 2 }, + { offsetof(RECT, right), offsetof(RECT, bottom), 0, 0, -1, -1, 3, 1 }, + { offsetof(RECT, left), offsetof(RECT, bottom), 0, 0, 0, -1, 2, 0 }, + + // side handles (top, right, bottom, left) + { offsetof(RECT, left), offsetof(RECT, top), 1, 0, 0, 0, 4, 6 }, + { offsetof(RECT, right), offsetof(RECT, top), 0, 1, -1, 0, 7, 5 }, + { offsetof(RECT, left), offsetof(RECT, bottom), 1, 0, 0, -1, 6, 4 }, + { offsetof(RECT, left), offsetof(RECT, top), 0, 1, 0, 0, 5, 7 } +}; + +// the struct below gives us information on the layout of a RECT struct and +// the relationship between its members +struct AFX_RECTINFO +{ + size_t nOffsetAcross; // offset of opposite point (ie. left->right) + int nSignAcross; // sign relative to that point (ie. add/subtract) +}; + +// this array is indexed by the offset of the RECT member / sizeof(int) +const AFX_RECTINFO _afxRectInfo[] = +{ + { offsetof(RECT, right), +1 }, + { offsetof(RECT, bottom), +1 }, + { offsetof(RECT, left), -1 }, + { offsetof(RECT, top), -1 }, +}; + + +HBRUSH HalftoneBrush() { + if (_afxHalftoneBrush == NULL) + { + WORD grayPattern[8]; + for (int i = 0; i < 8; i++) + grayPattern[i] = (WORD)(0x5555 << (i & 1)); + HBITMAP grayBitmap = CreateBitmap(8, 8, 1, 1, &grayPattern); + if (grayBitmap != NULL) + { + _afxHalftoneBrush = CreatePatternBrush(grayBitmap); + DeleteObject(grayBitmap); + } + } + return _afxHalftoneBrush; +} + + + +void DrawDragRect( + HDC hDC,LPRECT lpRect,SIZE size, + LPRECT lpRectLast,SIZE sizeLast, + HBRUSH hBrush = NULL,HBRUSH hBrushLast = NULL) +{ + // first, determine the update region and select it + HRGN rgnNew; + HRGN rgnOutside,rgnInside; + rgnOutside = CreateRectRgnIndirect(lpRect); + RECT rect = *lpRect; + InflateRect(&rect,-size.cx, -size.cy); + IntersectRect(&rect,&rect,lpRect); + rgnInside = CreateRectRgnIndirect(&rect); + rgnNew = CreateRectRgn(0, 0, 0, 0); + CombineRgn(rgnNew,rgnOutside,rgnInside,RGN_XOR); + + HBRUSH hBrushOld = NULL; + if (hBrush == NULL) + hBrush = HalftoneBrush(); + if (hBrushLast == NULL) + hBrushLast = hBrush; + + HRGN rgnLast,rgnUpdate; + if (lpRectLast != NULL) + { + // find difference between new region and old region + rgnLast = CreateRectRgn(0, 0, 0, 0); + SetRectRgn( + rgnOutside, + lpRectLast->left, + lpRectLast->top, + lpRectLast->right, + lpRectLast->bottom); + rect = *lpRectLast; + InflateRect(&rect,-sizeLast.cx, -sizeLast.cy); + IntersectRect(&rect,&rect, lpRectLast); + SetRectRgn(rgnInside,rect.left,rect.top,rect.right,rect.bottom); + CombineRgn(rgnLast,rgnOutside,rgnInside, RGN_XOR); + +// // only diff them if brushes are the same + if (hBrush == hBrushLast) + { + rgnUpdate = CreateRectRgn(0, 0, 0, 0); + CombineRgn(rgnUpdate,rgnLast,rgnNew, RGN_XOR); + } + } + if (hBrush != hBrushLast && lpRectLast != NULL) + { + // brushes are different -- erase old region first + SelectClipRgn(hDC,rgnLast); + GetClipBox(hDC,&rect); + hBrushOld = (HBRUSH)SelectObject(hDC,(HGDIOBJ)hBrushLast); + PatBlt(hDC,rect.left,rect.top,(rect.right-rect.left),(rect.bottom-rect.top),PATINVERT); + + SelectObject(hDC,(HGDIOBJ)hBrushOld); + hBrushOld = NULL; + } + + // draw into the update/new region + SelectClipRgn(hDC,rgnUpdate); + + GetClipBox(hDC,&rect); + hBrushOld = (HBRUSH) SelectObject(hDC,(HGDIOBJ) hBrush); + PatBlt(hDC,rect.left, rect.top,(rect.right-rect.left),(rect.bottom-rect.top), PATINVERT); + + // cleanup DC + if (hBrushOld != NULL) + SelectObject(hDC,(HGDIOBJ)hBrushOld); + SelectClipRgn(hDC,NULL); +} + + +void winwrap::TransformRect(LPRECT rect,HWND pWnd,HWND pWndClipTo) +{ + POINT pt; + pt.x = rect->left;pt.y = rect->top; + ClientToScreen(pWnd,&pt); + ScreenToClient(pWndClipTo,&pt); + rect->left = pt.x; rect->top = pt.y; + + pt.x = rect->right;pt.y = rect->bottom; + ClientToScreen(pWnd,&pt); + ScreenToClient(pWndClipTo,&pt); + rect->right = pt.x; rect->bottom = pt.y; +} + + +void NormalizeRect(LPRECT rp) +{ + if(rp->left > rp->right) { + UINT tmp = rp->left; + rp->left = rp->right; + rp->right = tmp; + } + + if(rp->top > rp->bottom) { + UINT tmp = rp->top; + rp->top = rp->bottom; + rp->bottom = tmp; + } +} + + +using namespace winwrap; + + +Tracker::Tracker() +{ + +} + + +Tracker::Tracker(LPCRECT lpSrcRect, UINT nStyle) +{ + Construct(); + CopyRect(&m_rect,lpSrcRect); + m_nStyle = nStyle; +} + +HBRUSH _afxHatchBrush = 0; +HPEN _afxBlackDottedPen = 0; +int _afxHandleSize = 0; + + +void Tracker::Construct() +{ + static BOOL bInitialized = false; + if (!bInitialized) + { + if (_afxHatchBrush == NULL) + { + // create the hatch pattern + bitmap + WORD hatchPattern[8]; + WORD wPattern = 0x1111; + for (int i = 0; i < 4; i++) + { + hatchPattern[i] = wPattern; + hatchPattern[i+4] = wPattern; + wPattern <<= 1; + } + HBITMAP hatchBitmap = CreateBitmap(8, 8, 1, 1,&hatchPattern); + + // create black hatched brush + _afxHatchBrush = CreatePatternBrush(hatchBitmap); + DeleteObject(hatchBitmap); + } + + if (_afxBlackDottedPen == NULL) + { + // create black dotted pen + _afxBlackDottedPen = CreatePen(PS_DOT, 0, RGB(0, 0, 0)); + } + + // get default handle size from Windows profile setting + static const TCHAR szWindows[] = TEXT("windows"); + static const TCHAR szInplaceBorderWidth[] = + TEXT("oleinplaceborderwidth"); + _afxHandleSize = GetProfileInt(szWindows, szInplaceBorderWidth, 4); + bInitialized = TRUE; + + _afxCursors[0] = _afxCursors[2] = LoadCursor(0,IDC_SIZENWSE); + _afxCursors[4] = _afxCursors[6] = LoadCursor(0,IDC_SIZENS); + _afxCursors[1] = _afxCursors[3] = LoadCursor(0,IDC_SIZENESW); + _afxCursors[5] = _afxCursors[7] = LoadCursor(0,IDC_SIZEWE); + _afxCursors[8] = LoadCursor(0,IDC_SIZEALL); + } + + m_nStyle = 0; + m_nHandleSize = _afxHandleSize; + m_sizeMin.cy = m_sizeMin.cx = m_nHandleSize*2; + + SetRectEmpty(&m_rectLast); + m_sizeLast.cx = m_sizeLast.cy = 0; + m_bErase = FALSE; + m_bFinalErase = FALSE; +} + +Tracker::~Tracker() +{ +} + + +int Tracker::HitTest(POINT point) const +{ + TrackerHit hitResult = hitNothing; + + RECT rectTrue; + GetTrueRect(&rectTrue); + NormalizeRect(&rectTrue); + if (PtInRect(&rectTrue,point)) + { + if ((m_nStyle & (resizeInside|resizeOutside)) != 0) + hitResult = (TrackerHit)HitTestHandles(point); + else + hitResult = hitMiddle; + } + return hitResult; +} + + +BOOL Tracker::SetCursor(HWND pWnd, UINT nHitTest) const +{ + // trackers should only be in client area + if (nHitTest != HTCLIENT) + return FALSE; + + // convert cursor position to client co-ordinates + POINT point; + GetCursorPos(&point); + ScreenToClient(pWnd,&point); + + // do hittest and normalize hit + int nHandle = HitTestHandles(point); + if (nHandle < 0) + return FALSE; + + // need to normalize the hittest such that we get proper cursors + nHandle = NormalizeHit(nHandle); + + // handle special case of hitting area between handles + // (logically the same -- handled as a move -- but different cursor) + if (nHandle == hitMiddle && !PtInRect(&m_rect,point)) + { + // only for trackers with hatchedBorder (ie. in-place resizing) + if (m_nStyle & hatchedBorder) + nHandle = (TrackerHit)9; + } + + ::SetCursor(_afxCursors[nHandle]); + return TRUE; +} + + + +BOOL Tracker::Track(HWND hWnd,POINT point,BOOL bAllowInvert, + HWND hWndClipTo) +{ + // perform hit testing on the handles + int nHandle = HitTestHandles(point); + if (nHandle < 0) + { + // didn't hit a handle, so just return FALSE + return FALSE; + } + + // otherwise, call helper function to do the tracking + m_bAllowInvert = bAllowInvert; + SetCursor(hWnd,nHandle); + return TrackHandle(nHandle, hWnd, point, hWndClipTo); +} + + +BOOL Tracker::TrackHandle(int nHandle,HWND hWnd,POINT point,HWND hWndClipTo) +{ + // don't handle if capture already set + if (GetCapture() != NULL) + return FALSE; + + // save original width & height in pixels + int nWidth = m_rect.right - m_rect.left; + int nHeight = m_rect.bottom - m_rect.top; + + // set capture to the window which received this message + SetCapture(hWnd); + UpdateWindow(hWnd); + if (hWndClipTo != NULL) + UpdateWindow(hWndClipTo); + RECT rectSave = m_rect; + + // find out what x/y coords we are supposed to modify + int *px, *py; + int xDiff, yDiff; + GetModifyPointers(nHandle, &px, &py, &xDiff, &yDiff); + xDiff = point.x - xDiff; + yDiff = point.y - yDiff; + + // get DC for drawing + HDC hDrawDC; + if (hWndClipTo != NULL) + { + // clip to arbitrary window by using adjusted Window DC + hDrawDC = GetDCEx(hWndClipTo,NULL, DCX_CACHE); + } + else + { + // otherwise, just use normal DC + hDrawDC = GetDC(hWnd); + } + + RECT rectOld; + BOOL bMoved = FALSE; + + // get messages until capture lost or cancelled/accepted + for (;;) + { + MSG msg; + GetMessage(&msg, NULL, 0, 0); + + if (GetCapture() != hWnd) + break; + + switch (msg.message) + { + // handle movement/accept messages + case WM_LBUTTONUP: + case WM_MOUSEMOVE: + rectOld = m_rect; + // handle resize cases (and part of move) + if (px != NULL) + *px = (int)(short)LOWORD(msg.lParam) - xDiff; + if (py != NULL) + *py = (int)(short)HIWORD(msg.lParam) - yDiff; + + // handle move case + if (nHandle == hitMiddle) + { + m_rect.right = m_rect.left + nWidth; + m_rect.bottom = m_rect.top + nHeight; + } + // allow caller to adjust the rectangle if necessary + AdjustRect(nHandle,&m_rect); + + // only redraw and callback if the rect actually changed! + m_bFinalErase = (msg.message == WM_LBUTTONUP); + if (!EqualRect(&rectOld,&m_rect) || m_bFinalErase) + { + if (bMoved) + { + m_bErase = TRUE; + DrawTrackerRect(&rectOld,hWndClipTo,hDrawDC,hWnd); + } + OnChangedRect(rectOld); + if (msg.message != WM_LBUTTONUP) + bMoved = TRUE; + } + if (m_bFinalErase) + goto ExitLoop; + + if (!EqualRect(&rectOld,&m_rect)) + { + m_bErase = FALSE; + DrawTrackerRect(&m_rect,hWndClipTo,hDrawDC,hWnd); + } + break; + + // handle cancel messages + case WM_KEYDOWN: + if (msg.wParam != VK_ESCAPE) + break; + case WM_RBUTTONDOWN: + if (bMoved) + { + m_bErase = m_bFinalErase = TRUE; + DrawTrackerRect(&m_rect, hWndClipTo, hDrawDC, hWnd); + } + m_rect = rectSave; + goto ExitLoop; + + // just dispatch rest of the messages + default: + DispatchMessage(&msg); + break; + } + } + + ExitLoop: + if (hWndClipTo != NULL) + ReleaseDC(hWndClipTo,hDrawDC); + else + ReleaseDC(hWnd,hDrawDC); + ReleaseCapture(); + + // restore rect in case bMoved is still FALSE + if (!bMoved) + m_rect = rectSave; + m_bFinalErase = FALSE; + m_bErase = FALSE; + + // return TRUE only if rect has changed + return !EqualRect(&rectSave,&m_rect); +} + + +void Tracker::OnChangedRect(const RECT& rectOld) +{ + +} + + +void Tracker::AdjustRect(int nHandle, LPRECT) +{ + if(nHandle == hitMiddle) + return; + + // convert the handle into locations within m_rect + int *px, *py; + GetModifyPointers(nHandle, &px, &py, NULL, NULL); + + // enforce minimum width + int nNewWidth = m_rect.right - m_rect.left; + int nAbsWidth = m_bAllowInvert ? abs(nNewWidth) : nNewWidth; + if (px != NULL && nAbsWidth < m_sizeMin.cx) + { + nNewWidth = nAbsWidth != 0 ? nNewWidth / nAbsWidth : 1; + const AFX_RECTINFO* pRectInfo = + &_afxRectInfo[(int*)px - (int*)&m_rect]; + *px = *(int*)((BYTE*)&m_rect + pRectInfo->nOffsetAcross) + + nNewWidth * m_sizeMin.cx * -pRectInfo->nSignAcross; + } + + // enforce minimum height + int nNewHeight = m_rect.bottom - m_rect.top; + int nAbsHeight = m_bAllowInvert ? abs(nNewHeight) : nNewHeight; + if (py != NULL && nAbsHeight < m_sizeMin.cy) + { + nNewHeight = nAbsHeight != 0 ? nNewHeight / nAbsHeight : 1; + const AFX_RECTINFO* pRectInfo = + &_afxRectInfo[(int*)py - (int*)&m_rect]; + *py = *(int*)((BYTE*)&m_rect + pRectInfo->nOffsetAcross) + + nNewHeight * m_sizeMin.cy * -pRectInfo->nSignAcross; + } +} + + +void Tracker::DrawTrackerRect( + LPRECT lpRect,HWND pWndClipTo,HDC pDC,HWND pWnd) +{ + // first, normalize the rectangle for drawing + RECT rect = *lpRect; + NormalizeRect(&rect); + + // convert to client coordinates + if (pWndClipTo != NULL) + TransformRect(&rect,pWnd,pWndClipTo); + + SIZE size; + size.cx = 0; size.cy = 0; + if (!m_bFinalErase) + { + // otherwise, size depends on the style + if (m_nStyle & hatchedBorder) + { + size.cx = size.cy = max(1,GetHandleSize(&rect)-1); + InflateRect(&rect,size.cx,size.cy); + } + else + { + size.cx = 1; // CX_BORDER; + size.cy = 1; // CY_BORDER; + } + } + + // and draw it + if (m_bFinalErase || !m_bErase) + DrawDragRect(pDC,&rect,size,&m_rectLast,m_sizeLast); + + // remember last rectangles + m_rectLast = rect; + m_sizeLast = size; +} + + +void Tracker::Draw(HDC hDC) const +{ + // set initial DC state + SetMapMode(hDC,MM_TEXT); + SetViewportOrgEx(hDC,0, 0,NULL); + SetWindowOrgEx(hDC,0, 0,NULL); + + // get normalized rectangle + RECT rect = m_rect; + NormalizeRect(&rect); + + HPEN pOldPen = NULL; + HBRUSH pOldBrush = NULL; + HGDIOBJ pTemp; + int nOldROP; + + // draw lines + if ((m_nStyle & (dottedLine|solidLine)) != 0) + { + if (m_nStyle & dottedLine) + pOldPen = (HPEN)SelectObject(hDC,_afxBlackDottedPen); + else + pOldPen = (HPEN)SelectObject(hDC,(HGDIOBJ)BLACK_PEN); + pOldBrush = (HBRUSH)SelectObject(hDC,(HGDIOBJ)NULL_BRUSH); + nOldROP = SetROP2(hDC,R2_COPYPEN); + InflateRect(&rect,+1, +1); // borders are one pixel outside + Rectangle(hDC,rect.left, rect.top, rect.right, rect.bottom); + SetROP2(hDC,nOldROP); + } + + // if hatchBrush is going to be used, need to unrealize it + if ((m_nStyle & (hatchInside|hatchedBorder)) != 0) + UnrealizeObject((HGDIOBJ)_afxHatchBrush); + + // hatch inside + if ((m_nStyle & hatchInside) != 0) + { + pTemp = SelectObject(hDC,(HGDIOBJ)NULL_PEN); + if (pOldPen == NULL) + pOldPen = (HPEN)pTemp; + pTemp = SelectObject(hDC,(HGDIOBJ)_afxHatchBrush); + if (pOldBrush == NULL) + pOldBrush = (HBRUSH)pTemp; + SetBkMode(hDC,TRANSPARENT); + nOldROP = SetROP2(hDC,R2_MASKNOTPEN); + Rectangle(hDC,rect.left+1, rect.top+1, rect.right, rect.bottom); + SetROP2(hDC,nOldROP); + } + + // draw hatched border + if ((m_nStyle & hatchedBorder) != 0) + { + pTemp = SelectObject(hDC,(HGDIOBJ)_afxHatchBrush); + if (pOldBrush == NULL) + pOldBrush = (HBRUSH)pTemp; + SetBkMode(hDC,OPAQUE); + RECT rectTrue; + GetTrueRect(&rectTrue); + PatBlt(hDC,rectTrue.left, rectTrue.top, rectTrue.right-rectTrue.left, + rect.top-rectTrue.top, 0x000F0001 /* Pn */); + PatBlt(hDC,rectTrue.left, rect.bottom, + rectTrue.right-rectTrue.left, + rectTrue.bottom-rect.bottom, 0x000F0001 /* Pn */); + PatBlt(hDC,rectTrue.left, rect.top, rect.left-rectTrue.left, + rect.bottom-rect.top, 0x000F0001 /* Pn */); + PatBlt(hDC,rect.right, rect.top, rectTrue.right-rect.right, + rect.bottom-rect.top, 0x000F0001 /* Pn */); + } + + // draw resize handles + if ((m_nStyle & (resizeInside|resizeOutside)) != 0) + { + UINT mask = GetHandleMask(); + HBRUSH hbrush = CreateSolidBrush(RGB(0,0,0)); + for (int i = 0; i < 8; ++i) + { + if (mask & (1<nOffsetX); + rect.top = *(int*)((BYTE*)&rectT + pHandleInfo->nOffsetY); + rect.left += size * pHandleInfo->nHandleX; + rect.top += size * pHandleInfo->nHandleY; + rect.left += pHandleInfo->nCenterX * (nWidth - size) / 2; + rect.top += pHandleInfo->nCenterY * (nHeight - size) / 2; + rect.right = rect.left + size; + rect.bottom = rect.top + size; + + *pHandleRect = rect; +} + + +int Tracker::GetHandleSize(LPRECT lpRect) const +{ + if (lpRect == NULL) + lpRect = (LPRECT)&m_rect; + + int size = m_nHandleSize; + if (!(m_nStyle & resizeOutside)) + { + // make sure size is small enough for the size of the rect + int sizeMax = min(abs(lpRect->right - lpRect->left), + abs(lpRect->bottom - lpRect->top)); + if (size * 2 > sizeMax) + size = sizeMax / 2; + } + return size; +} + + +UINT Tracker::GetHandleMask() const +{ + UINT mask = 0x0F; // always have 4 corner handles + int size = m_nHandleSize*3; + if (abs(m_rect.right - m_rect.left) - size > 4) + mask |= 0x50; + if (abs(m_rect.bottom - m_rect.top) - size > 4) + mask |= 0xA0; + return mask; +} + + +void Tracker::GetTrueRect(LPRECT lpTrueRect) const +{ + RECT rect = m_rect; + NormalizeRect(&rect); + int nInflateBy = 0; + if ((m_nStyle & (resizeOutside|hatchedBorder)) != 0) + nInflateBy += GetHandleSize() - 1; + if ((m_nStyle & (solidLine|dottedLine)) != 0) + ++nInflateBy; + InflateRect(&rect,nInflateBy, nInflateBy); + *lpTrueRect = rect; +} + + +int Tracker::NormalizeHit(int nHandle) const +{ + if (nHandle == hitMiddle || nHandle == hitNothing) + return nHandle; + const AFX_HANDLEINFO* pHandleInfo = &_afxHandleInfo[nHandle]; + if (m_rect.right - m_rect.left < 0) + { + nHandle = (TrackerHit)pHandleInfo->nInvertX; + pHandleInfo = &_afxHandleInfo[nHandle]; + } + if (m_rect.bottom - m_rect.top < 0) + nHandle = (TrackerHit)pHandleInfo->nInvertY; + return nHandle; +} + + +int Tracker::HitTestHandles(POINT point) const +{ + RECT rect; + UINT mask = GetHandleMask(); + + // see if hit anywhere inside the tracker + GetTrueRect(&rect); + if (!PtInRect(&rect,point)) + return hitNothing; // totally missed + + // see if we hit a handle + for (int i = 0; i < 8; ++i) + { + if (mask & (1<nInvertX != nHandle) + { + *ppx = (int*)((BYTE*)&m_rect + pHandleInfo->nOffsetX); + if (px != NULL) + *px = **ppx; + } + else + { + // middle handle on X axis + if (px != NULL) + *px = m_rect.left + (m_rect.left-m_rect.right) / 2; + } + if (pHandleInfo->nInvertY != nHandle) + { + *ppy = (int*)((BYTE*)&m_rect + pHandleInfo->nOffsetY); + if (py != NULL) + *py = **ppy; + } + else + { + // middle handle on Y axis + if (py != NULL) + *py = m_rect.top + (m_rect.top-m_rect.bottom) / 2; + } +} + -- cgit v1.2.3