cooldialogbar.cpp

Ever wanted to just type tail -f error_log on Windows?Envious of your Unix friends who can track cha

/*
 * Tail for Win32 - a Windows version of the UNIX 'tail -f' command.
 * 
 * Author: Paul Perkins ([e-mail])
 * 
 * Copyright(c)
 *
 * This program is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU General Public License as published by the Free 
 * Software Foundation; either version 2 of the License, or (at your option) 
 * any later version.
 * 
 * This program 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 General Public License for 
 * more details.
 * 
 * You should have received a copy of the GNU General Public License along with 
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple 
 * Place, Suite 330, Boston, MA 02111-1307 USA
 * 
 * $Id: CoolDialogBar.cpp,v 1.1 2003/11/14 12:23:43 paulperkins Exp $
 * 
 */

// CoolDialogBar.cpp : implementation file
// Originally by Oliver Smith.

#include "stdafx.h"
#include "afxpriv.h"    // for CDockContext
//#include "DialogControl.h"
#include "CoolDialogBar.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CCoolDialogBar

CCoolDialogBar::CCoolDialogBar() : 
m_clrBtnHilight(::GetSysColor(COLOR_BTNHILIGHT)),
m_clrBtnShadow(::GetSysColor(COLOR_BTNSHADOW))
{
    m_sizeMin = CSize(32, 32);
    m_sizeHorz = CSize(200, 200);
    m_sizeVert = CSize(200, 200);
    m_sizeFloat = CSize(200, 200);
    m_bTracking = FALSE;
    m_bInRecalcNC = FALSE;
    m_cxEdge = 6;
	m_cxBorder = 3;
	m_cxGripper = 20;
	m_cDialog = NULL;
	m_brushBkgd.CreateSolidBrush(GetSysColor(COLOR_BTNFACE));

	// Rob Wolpov 10/15/98 Added support for diagonal resizing
	m_cyBorder	 = 3;		
	m_cCaptionSize = GetSystemMetrics(SM_CYSMCAPTION);
	m_cMinWidth	 = GetSystemMetrics(SM_CXMIN);
	m_cMinHeight	 = GetSystemMetrics(SM_CYMIN);
}

CCoolDialogBar::~CCoolDialogBar()
{
}

BEGIN_MESSAGE_MAP(CCoolDialogBar, CControlBar)
    //{{AFX_MSG_MAP(CCoolDialogBar)
    ON_WM_LBUTTONUP()
    ON_WM_MOUSEMOVE()
    ON_WM_SETCURSOR()
    ON_WM_WINDOWPOSCHANGED()
    ON_WM_NCPAINT()
    ON_WM_NCLBUTTONDOWN()
    ON_WM_NCHITTEST()
    ON_WM_NCCALCSIZE()
    ON_WM_LBUTTONDOWN()
    ON_WM_CAPTURECHANGED()
    ON_WM_LBUTTONDBLCLK()
	ON_WM_NCLBUTTONDBLCLK()
    ON_WM_SIZE()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCoolDialogBar message handlers

void CCoolDialogBar::OnUpdateCmdUI(class CFrameWnd *pTarget, int bDisableIfNoHndler)
{
    UpdateDialogControls(pTarget, bDisableIfNoHndler);
}

BOOL CCoolDialogBar::Create(CWnd* pParentWnd, CDialog *pDialog, CString &pTitle, UINT nID, DWORD dwStyle) 
{
    ASSERT_VALID(pParentWnd);   // must have a parent
    ASSERT (!((dwStyle & CBRS_SIZE_FIXED) && (dwStyle & CBRS_SIZE_DYNAMIC)));
	
    // save the style -- AMENDED by Holger Thiele - Thankyou
    m_dwStyle = dwStyle & CBRS_ALL;

	// create the base window
    CString wndclass = AfxRegisterWndClass(CS_DBLCLKS, LoadCursor(NULL, IDC_ARROW),
        m_brushBkgd, 0);
    if (!CWnd::Create(wndclass, pTitle, dwStyle, CRect(0,0,0,0),
        pParentWnd, 0))
        return FALSE;

	// create the child dialog
	m_cDialog = pDialog;
	m_cDialog->Create(nID, this);

	// use the dialog dimensions as default base dimensions
	CRect rc;
    m_cDialog->GetWindowRect(rc);
    m_sizeHorz = m_sizeVert = m_sizeFloat = rc.Size();
	m_sizeHorz.cy += m_cxEdge + m_cxBorder;
	m_sizeVert.cx += m_cxEdge + m_cxBorder;

    return TRUE;
}

CSize CCoolDialogBar::CalcFixedLayout(BOOL bStretch, BOOL bHorz)
{
    CRect rc;

    m_pDockSite->GetControlBar(AFX_IDW_DOCKBAR_TOP)->GetWindowRect(rc);
    int nHorzDockBarWidth = bStretch ? 32767 : rc.Width() + 4;
    m_pDockSite->GetControlBar(AFX_IDW_DOCKBAR_LEFT)->GetWindowRect(rc);
    int nVertDockBarHeight = bStretch ? 32767 : rc.Height() + 4;

	if(IsFloating())
		return m_sizeFloat;
    else if (bHorz)
        return CSize(nHorzDockBarWidth, m_sizeHorz.cy);
    else
        return CSize(m_sizeVert.cx, nVertDockBarHeight);
}

CSize CCoolDialogBar::CalcDynamicLayout(int nLength, DWORD dwMode)
{
	// Rob Wolpov 10/15/98 Added support for diagonal sizing
	if (IsFloating())
	{
		// Enable diagonal arrow cursor for resizing
		GetParent()->GetParent()->ModifyStyle(MFS_4THICKFRAME,0);
	}    
	if (dwMode & (LM_HORZDOCK | LM_VERTDOCK))
	{
		SetWindowPos(NULL, 0, 0, 0, 0,
			SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER |
			SWP_NOACTIVATE | SWP_FRAMECHANGED);
	 	m_pDockSite->RecalcLayout();
	    return CControlBar::CalcDynamicLayout(nLength,dwMode);
	}

    if (dwMode & LM_MRUWIDTH)
        return m_sizeFloat;

    if (dwMode & LM_COMMIT)
    {
        m_sizeFloat.cx = nLength;
        return m_sizeFloat;
    }

	// Rob Wolpov 10/15/98 Added support for diagonal sizing
	if (IsFloating())
	{
		RECT	window_rect;
		POINT	cursor_pt;
		
		GetCursorPos(&cursor_pt);
		GetParent()->GetParent()->GetWindowRect(&window_rect);
		
		switch (m_pDockContext->m_nHitTest)
		{
		case HTTOPLEFT:
			m_sizeFloat.cx = max(window_rect.right - cursor_pt.x,
				m_cMinWidth) - m_cxBorder;
			m_sizeFloat.cy = max(window_rect.bottom - m_cCaptionSize - 
				cursor_pt.y,m_cMinHeight) - 1;
			m_pDockContext->m_rectFrameDragHorz.top = min(cursor_pt.y,
				window_rect.bottom - m_cCaptionSize - m_cMinHeight) - 
				m_cyBorder;
			m_pDockContext->m_rectFrameDragHorz.left = min(cursor_pt.x,
				window_rect.right - m_cMinWidth) - 1;
			return m_sizeFloat;
			
		case HTTOPRIGHT:
			m_sizeFloat.cx = max(cursor_pt.x - window_rect.left,
				m_cMinWidth);
			m_sizeFloat.cy = max(window_rect.bottom - m_cCaptionSize - 
				cursor_pt.y,m_cMinHeight) - 1;
			m_pDockContext->m_rectFrameDragHorz.top = min(cursor_pt.y,
				window_rect.bottom - m_cCaptionSize - m_cMinHeight) - 
				m_cyBorder;
			return m_sizeFloat;
			
		case HTBOTTOMLEFT:
			m_sizeFloat.cx = max(window_rect.right - cursor_pt.x,
				m_cMinWidth) - m_cxBorder;
			m_sizeFloat.cy = max(cursor_pt.y - window_rect.top - 
				m_cCaptionSize,m_cMinHeight);
			m_pDockContext->m_rectFrameDragHorz.left = min(cursor_pt.x,
				window_rect.right - m_cMinWidth) - 1;
			return m_sizeFloat;
			
		case HTBOTTOMRIGHT:
			m_sizeFloat.cx = max(cursor_pt.x - window_rect.left,
				m_cMinWidth);
			m_sizeFloat.cy = max(cursor_pt.y - window_rect.top - 
				m_cCaptionSize,m_cMinHeight);
			return m_sizeFloat;
		}
	}
	
	if (dwMode & LM_LENGTHY)
        return CSize(m_sizeFloat.cx,
            m_sizeFloat.cy = max(m_sizeMin.cy, nLength));
    else
        return CSize(max(m_sizeMin.cx, nLength), m_sizeFloat.cy);
}

void CCoolDialogBar::OnWindowPosChanged(WINDOWPOS FAR* lpwndpos) 
{
    CControlBar::OnWindowPosChanged(lpwndpos);

	if(!::IsWindow(m_hWnd) || m_cDialog==NULL)
		return;
	if(!::IsWindow(m_cDialog->m_hWnd))
		return;
    if (m_bInRecalcNC) 
	{
		CRect rc;
		GetClientRect(rc);
		m_cDialog->MoveWindow(rc);
		return;
	}

    // Find on which side are we docked
    UINT nDockBarID = GetParent()->GetDlgCtrlID();

    // Return if dropped at same location
    if (nDockBarID == m_nDockBarID // no docking side change
        && (lpwndpos->flags & SWP_NOSIZE) // no size change
        && ((m_dwStyle & CBRS_BORDER_ANY) != CBRS_BORDER_ANY))
        return; 

    m_nDockBarID = nDockBarID;

    // Force recalc the non-client area
    m_bInRecalcNC = TRUE;
    SetWindowPos(NULL, 0,0,0,0,
        SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER | SWP_FRAMECHANGED);
    m_bInRecalcNC = FALSE;
}

BOOL CCoolDialogBar::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) 
{
    if ((nHitTest != HTSIZE) || m_bTracking)
        return CControlBar::OnSetCursor(pWnd, nHitTest, message);

    if (IsHorz())
        SetCursor(LoadCursor(NULL, IDC_SIZENS));
    else
        SetCursor(LoadCursor(NULL, IDC_SIZEWE));
    return TRUE;
}

/////////////////////////////////////////////////////////////////////////
// Mouse Handling
//
void CCoolDialogBar::OnLButtonUp(UINT nFlags, CPoint point) 
{
    if (!m_bTracking)
        CControlBar::OnLButtonUp(nFlags, point);
    else
    {
        ClientToWnd(point);
        StopTracking(TRUE);
    }
}

void CCoolDialogBar::OnMouseMove(UINT nFlags, CPoint point) 
{
    if (IsFloating() || !m_bTracking)
    {
        CControlBar::OnMouseMove(nFlags, point);
        return;
    }

    CPoint cpt = m_rectTracker.CenterPoint();

    ClientToWnd(point);

    if (IsHorz())
    {
        if (cpt.y != point.y)
        {
            OnInvertTracker(m_rectTracker);
            m_rectTracker.OffsetRect(0, point.y - cpt.y);
            OnInvertTracker(m_rectTracker);
        }
    }
    else 
    {
        if (cpt.x != point.x)
        {
            OnInvertTracker(m_rectTracker);
            m_rectTracker.OffsetRect(point.x - cpt.x, 0);
            OnInvertTracker(m_rectTracker);
        }
    }
}

void CCoolDialogBar::OnNcCalcSize(BOOL bCalcValidRects, NCCALCSIZE_PARAMS FAR* lpncsp) 
{
    // Compute the rectangle of the mobile edge
    GetWindowRect(m_rectBorder);
    m_rectBorder = CRect(0, 0, m_rectBorder.Width(), m_rectBorder.Height());
    
    DWORD dwBorderStyle = m_dwStyle | CBRS_BORDER_ANY;

    switch(m_nDockBarID)
    {
    case AFX_IDW_DOCKBAR_TOP:
        dwBorderStyle &= ~CBRS_BORDER_BOTTOM;