| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| #if defined(_MSC_VER) && (_MSC_VER > 1310) |
| #pragma warning(disable : 4917 4555) |
| #endif |
| |
| #include "stdafx.h" |
| #include <stddef.h> |
| #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(NULL); |
| HRGN rgnUpdate(NULL); |
| 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<<i)) |
| { |
| GetHandleRect((TrackerHit)i, &rect); |
| // FillSolidRect(hDC,rect, RGB(0, 0, 0)); |
| FillRect(hDC,&rect,hbrush); |
| } |
| } |
| DeleteObject(hbrush); |
| } |
| |
| // cleanup pDC state |
| if (pOldPen != NULL) |
| SelectObject(hDC,pOldPen); |
| if (pOldBrush != NULL) |
| SelectObject(hDC,pOldBrush); |
| RestoreDC(hDC,-1); |
| } |
| |
| |
| void Tracker::GetHandleRect(int nHandle,RECT* pHandleRect) const |
| { |
| // get normalized rectangle of the tracker |
| RECT rectT = m_rect; |
| NormalizeRect(&rectT); |
| if ((m_nStyle & (solidLine|dottedLine)) != 0) |
| InflateRect(&rectT,+1, +1); |
| |
| // since the rectangle itself was normalized, we also have to invert the |
| // resize handles. |
| nHandle = NormalizeHit(nHandle); |
| |
| // handle case of resize handles outside the tracker |
| int size = GetHandleSize(); |
| if (m_nStyle & resizeOutside) |
| InflateRect(&rectT,size-1, size-1); |
| |
| // calculate position of the resize handle |
| int nWidth = rectT.right - rectT.left; |
| int nHeight = rectT.bottom - rectT.top; |
| RECT rect; |
| const AFX_HANDLEINFO* pHandleInfo = &_afxHandleInfo[nHandle]; |
| rect.left = *(int*)((BYTE*)&rectT + pHandleInfo->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<<i)) |
| { |
| GetHandleRect((TrackerHit)i, &rect); |
| if (PtInRect(&rect,point)) |
| return (TrackerHit)i; |
| } |
| } |
| |
| // last of all, check for non-hit outside of object, between resize handles |
| if ((m_nStyle & hatchedBorder) == 0) |
| { |
| RECT rect = m_rect; |
| NormalizeRect(&rect); |
| if ((m_nStyle & dottedLine|solidLine) != 0) |
| InflateRect(&rect,+1, +1); |
| if (!PtInRect(&rect,point)) |
| return hitNothing; // must have been between resize handles |
| } |
| return hitMiddle; // no handle hit, but hit object (or object border) |
| } |
| |
| |
| |
| void Tracker::GetModifyPointers( |
| int nHandle, int** ppx, int** ppy, int* px, int* py) |
| { |
| if (nHandle == hitMiddle) |
| nHandle = hitTopLeft; // same as hitting top-left |
| |
| *ppx = NULL; |
| *ppy = NULL; |
| |
| // fill in the part of the rect that this handle modifies |
| // (Note: handles that map to themselves along a given axis when that |
| // axis is inverted don't modify the value on that axis) |
| |
| const AFX_HANDLEINFO* pHandleInfo = &_afxHandleInfo[nHandle]; |
| if (pHandleInfo->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; |
| } |
| } |
| |
| // Fix strange warnings about some |
| // ATL::CAxHostWindow::QueryInterface|AddRef|Releae functions. |
| // warning C4505: 'xxx' : unreferenced local function has been removed |
| #if defined(_MSC_VER) |
| #pragma warning(disable: 4505) |
| #endif |
