dockingmanager.cpp

Notepad++ is a generic source code editor (it tries to be anyway) and Notepad replacement written in

//this file is part of docking functionality for Notepad++
//Copyright (C)2006 Jens Lorenz <[e-mail]>
//
//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., 675 Mass Ave, Cambridge, MA 02139, USA.


#include "DockingCont.h"
#include "DockingManager.h"
#include "Gripper.h"
#include "windows.h"



BOOL DockingManager::_isRegistered = FALSE;


DockingManager::DockingManager()
{
	_isInitialized			= FALSE;
	_hImageList				= NULL;
	memset(_iContMap, -1, CONT_MAP_MAX);

	_iContMap[0] = CONT_LEFT;
	_iContMap[1] = CONT_RIGHT;
	_iContMap[2] = CONT_TOP;
	_iContMap[3] = CONT_BOTTOM;

	/* create four containers with splitters */
	for (int i = 0; i < DOCKCONT_MAX; i++)
	{
		DockingCont*		_pDockCont = new DockingCont;
		_vContainer.push_back(_pDockCont);

		DockingSplitter*	_pSplitter = new DockingSplitter;
		_vSplitter.push_back(_pSplitter);
	}
}


void DockingManager::init(HINSTANCE hInst, HWND hWnd, Window ** ppWin)
{
	Window::init(hInst, hWnd);

	if (!_isRegistered)
	{
		WNDCLASS clz;

		clz.style = 0;
		clz.lpfnWndProc = staticWinProc;
		clz.cbClsExtra = 0;
		clz.cbWndExtra = 0;
		clz.hInstance = _hInst;
		clz.hIcon = NULL;
		clz.hCursor = NULL;
		clz.hbrBackground = NULL; 
		clz.lpszMenuName = NULL;
		clz.lpszClassName = DSPC_CLASS_NAME;

		if (!::RegisterClass(&clz))
		{
			systemMessage("System Err");
			throw int(98);
		}
		_isRegistered = TRUE;
	}

	_hSelf = ::CreateWindowEx(
					0,
					DSPC_CLASS_NAME,
					"",
					WS_CHILD | WS_CLIPCHILDREN,
					CW_USEDEFAULT, CW_USEDEFAULT,
					CW_USEDEFAULT, CW_USEDEFAULT,
					_hParent,
					NULL,
					_hInst,
					(LPVOID)this);

	if (!_hSelf)
	{
		systemMessage("System Err");
		throw int(777);
	}

	setClientWnd(ppWin);

	/* create docking container */
	for (int iCont = 0; iCont < DOCKCONT_MAX; iCont++)
	{
		_vContainer[iCont]->init(_hInst, _hSelf);
		_vContainer[iCont]->doDialog(false);
		::SetParent(_vContainer[iCont]->getHSelf(), _hParent);

		if ((iCont == CONT_TOP) || (iCont == CONT_BOTTOM))
			_vSplitter[iCont]->init(_hInst, _hParent, _hSelf, DMS_HORIZONTAL);
		else
			_vSplitter[iCont]->init(_hInst, _hParent, _hSelf, DMS_VERTICAL);
	}

	_dockData.hWnd = _hSelf;

	_isInitialized = TRUE;
}

LRESULT CALLBACK DockingManager::staticWinProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	DockingManager *pDockingManager = NULL;
	switch (message)
	{	
		case WM_NCCREATE :
			pDockingManager = (DockingManager *)(((LPCREATESTRUCT)lParam)->lpCreateParams);
			pDockingManager->_hSelf = hwnd;
			::SetWindowLong(hwnd, GWL_USERDATA, reinterpret_cast<LONG>(pDockingManager));
			return TRUE;

		default :
			pDockingManager = (DockingManager *)::GetWindowLong(hwnd, GWL_USERDATA);
			if (!pDockingManager)
				return ::DefWindowProc(hwnd, message, wParam, lParam);
			return pDockingManager->runProc(hwnd, message, wParam, lParam);
	}
}

LRESULT DockingManager::runProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message)
	{
		case WM_NCACTIVATE:
		{
			/* activate/deactivate titlebar of toolbars */
			for (size_t iCont = DOCKCONT_MAX; iCont < _vContainer.size(); iCont++)
			{
				::SendMessage(_vContainer[iCont]->getHSelf(), WM_NCACTIVATE, wParam, (LPARAM)-1);
			}

			if ((int)lParam != -1)
			{
				::SendMessage(_hParent, WM_NCACTIVATE, wParam, (LPARAM)-1);
			}
			break;
		}
		case WM_MOVE:
		case WM_SIZE:
		{
			onSize();
			break;
		}
		case WM_DESTROY:
		{
			/* destroy imagelist if it exists */
			if (_hImageList != NULL)
			{
				::ImageList_Destroy(_hImageList);
			}

			/* destroy containers */
			for (int i = _vContainer.size(); i > 0; i--)
			{
				_vContainer[i-1]->destroy();
				delete _vContainer[i-1];
			}
			break;
		}
		case DMM_MOVE:
		{
			Gripper*	pGripper = new Gripper;
			pGripper->init(_hInst, _hParent);
			pGripper->startGrip((DockingCont*)lParam, this, pGripper);
			break;
		}
		case DMM_MOVE_SPLITTER:
		{
			INT			offset = (INT)wParam;

			for (int iCont = 0; iCont < DOCKCONT_MAX; iCont++)
			{
				if (_vSplitter[iCont]->getHSelf() == (HWND)lParam)
				{
					switch (iCont)
					{
						case CONT_TOP:
							_dockData.rcRegion[iCont].bottom -= offset;
							if (_dockData.rcRegion[iCont].bottom < 0)
							{
								_dockData.rcRegion[iCont].bottom = 0;
							}
							if ((_rcWork.bottom < (-SPLITTER_WIDTH)) && (offset < 0))
							{
								_dockData.rcRegion[iCont].bottom += offset;
							}
							break;
						case CONT_BOTTOM:
							_dockData.rcRegion[iCont].bottom   += offset;
							if (_dockData.rcRegion[iCont].bottom < 0)
							{
								_dockData.rcRegion[iCont].bottom   = 0;
							}
							if ((_rcWork.bottom < (-SPLITTER_WIDTH)) && (offset > 0))
							{
								_dockData.rcRegion[iCont].bottom -= offset;
							}
							break;
						case CONT_LEFT:
							_dockData.rcRegion[iCont].right    -= offset;
							if (_dockData.rcRegion[iCont].right < 0)
							{
								_dockData.rcRegion[iCont].right = 0;
							}
							if ((_rcWork.right < SPLITTER_WIDTH) && (offset < 0))
							{
								_dockData.rcRegion[iCont].right += offset;
							}
							break;
						case CONT_RIGHT:
							_dockData.rcRegion[iCont].right    += offset;
							if (_dockData.rcRegion[iCont].right < 0)
							{
								_dockData.rcRegion[iCont].right = 0;
							}
							if ((_rcWork.right < SPLITTER_WIDTH) && (offset > 0))
							{
								_dockData.rcRegion[iCont].right -= offset;
							}
							break;
					}
					onSize();
					break;
				}
			}
			break;
		}
		case DMM_DOCK:
		case DMM_FLOAT:
		{
			toggleActiveTb((DockingCont*)lParam, message);
			return FALSE;
		}
		case DMM_CLOSE:
		{
			tTbData	TbData	= *((DockingCont*)lParam)->getDataOfActiveTb();
			return SendNotify(TbData.hClient, DMN_CLOSE);
		}
		case DMM_FLOATALL:
		{
			toggleVisTb((DockingCont*)lParam, DMM_FLOAT);
			return FALSE;
		}
		case DMM_DOCKALL:
		{
			toggleVisTb((DockingCont*)lParam, DMM_DOCK);
			return FALSE;
		}
		case DMM_GETIMAGELIST:
		{
			return (LPARAM)_hImageList;
		}
		case DMM_GETICONPOS:
		{
			for (UINT uImageCnt = 0; uImageCnt < _vImageList.size(); uImageCnt++)
			{
				if ((HWND)lParam == _vImageList[uImageCnt])
				{
					return uImageCnt;
				}
			}
			return -1;
		}
		default :
			break;
	}

	return ::DefWindowProc(_hSelf, message, wParam, lParam);
}

void DockingManager::onSize()
{
    reSizeTo(_rect);
}

void DockingManager::reSizeTo(RECT & rc)
{
	/* store current size of client area */
	_rect = rc;

	/* prepare size of work area */
	_rcWork	= rc;

	if (_isInitialized == FALSE)
		return;

	/* set top container */
	_dockData.rcRegion[CONT_TOP].left      = rc.left;
	_dockData.rcRegion[CONT_TOP].top       = rc.top;
	_dockData.rcRegion[CONT_TOP].right     = rc.right-rc.left;
	_vSplitter[CONT_TOP]->display(false);
	if (_vContainer[CONT_TOP]->isVisible())
	{
		_rcWork.top		+= _dockData.rcRegion[CONT_TOP].bottom + SPLITTER_WIDTH;
		_rcWork.bottom	-= _dockData.rcRegion[CONT_TOP].bottom + SPLITTER_WIDTH;

		/* set size of splitter */
		RECT	rc = {_dockData.rcRegion[CONT_TOP].left  ,
					  _dockData.rcRegion[CONT_TOP].top + _dockData.rcRegion[CONT_TOP].bottom,
					  _dockData.rcRegion[CONT_TOP].right ,
					  SPLITTER_WIDTH};
		_vSplitter[CONT_TOP]->reSizeTo(rc);
	}

	/* set bottom container */
	_dockData.rcRegion[CONT_BOTTOM].left   = rc.left;
	_dockData.rcRegion[CONT_BOTTOM].top    = rc.top + rc.bottom - _dockData.rcRegion[CONT_BOTTOM].bottom;
	_dockData.rcRegion[CONT_BOTTOM].right  = rc.right-rc.left;

	/* create temporary rect for bottom container */
	RECT		rcBottom	= _dockData.rcRegion[CONT_BOTTOM];

	_vSplitter[CONT_BOTTOM]->display(false);
	if (_vContainer[CONT_BOTTOM]->isVisible())
	{
		_rcWork.bottom	-= _dockData.rcRegion[CONT_BOTTOM].bottom + SPLITTER_WIDTH;

		/* correct the visibility of bottom container when height is NULL */
		if (_rcWork.bottom < rc.top)
		{
			rcBottom.top     = _rcWork.top + rc.top + SPLITTER_WIDTH;
			rcBottom.bottom += _rcWork.bottom - rc.top;
			_rcWork.bottom = rc.top;
		}
		if ((rcBottom.bottom + SPLITTER_WIDTH) < 0)
		{
			_rcWork.bottom = rc.bottom - _dockData.rcRegion[CONT_TOP].bottom;
		}

		/* set size of splitter */
		RECT	rc = {rcBottom.left,
					  rcBottom.top - SPLITTER_WIDTH,
					  rcBottom.right,
					  SPLITTER_WIDTH};
		_vSplitter[CONT_BOTTOM]->reSizeTo(rc);
	}

	/* set left container */
	_dockData.rcRegion[CONT_LEFT].left     = rc.left;
	_dockData.rcRegion[CONT_LEFT].top      = _rcWork.top;
	_dockData.rcRegion[CONT_LEFT].bottom   = _rcWork.bottom;
	_vSplitter[CONT_LEFT]->display(false);
	if (_vContainer[CONT_LEFT]->isVisible())
	{
		_rcWork.left		+= _dockData.rcRegion[CONT_LEFT].right + SPLITTER_WIDTH;
		_rcWork.right	-= _dockData.rcRegion[CONT_LEFT].right + SPLITTER_WIDTH;

		/* set size of splitter */
		RECT	rc = {_dockData.rcRegion[CONT_LEFT].right,
					  _dockData.rcRegion[CONT_LEFT].top,
					  SPLITTER_WIDTH,
					  _dockData.rcRegion[CONT_LEFT].bottom};
		_vSplitter[CONT_LEFT]->reSizeTo(rc);
	}

	/* set right container */
	_dockData.rcRegion[CONT_RIGHT].left    = rc.right - _dockData.rcRegion[CONT_RIGHT].right;
	_dockData.rcRegion[CONT_RIGHT].top     = _rcWork.top;
	_dockData.rcRegion[CONT_RIGHT].bottom  = _rcWork.bottom;

	/* create temporary rect for right container */
	RECT		rcRight		= _dockData.rcRegion[CONT_RIGHT];

	_vSplitter[CONT_RIGHT]->display(false);
	if (_vContainer[CONT_RIGHT]->isVisible())
	{
		_rcWork.right	-= _dockData.rcRegion[CONT_RIGHT].right + SPLITTER_WIDTH;

		/* correct the visibility of right container when width is NULL */
		if (_rcWork.right < 15)
		{
			rcRight.left    = _rcWork.left + 15 + SPLITTER_WIDTH;
			rcRight.right  += _rcWork.right - 15;
			_rcWork.right	= 15;
		}

		/* set size of splitter */
		RECT	rc = {rcRight.left - SPLITTER_WIDTH,
					  rcRight.top,
					  SPLITTER_WIDTH,
					  rcRight.bottom};
		_vSplitter[CONT_RIGHT]->reSizeTo(rc);
	}


	/* set window positions of container*/
	if (_vContainer[CONT_BOTTOM]->isVisible())
	{
		::SetWindowPos(_vContainer[CONT_BOTTOM]->getHSelf(), NULL, 
					   rcBottom.left  ,