office-gobmx/embedserv/source/embed/tracker.cxx
Sebastian Spaeth ead7290449 Add vim/emacs modelines to all source files
Fixes #fdo30794
Based on bin/add-modelines script (originally posted in mail
1286706307.1871.1399280959@webmail.messagingengine.com)

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2010-10-13 10:57:23 +02:00

841 lines
24 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org 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 version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
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************************************************************************/
#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
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */