rrectoolbar.cpp

来自「管理项目进度工具的原代码」· C++ 代码 · 共 390 行

/* ==========================================================================
	File :			RRECEnToolBar.cpp

	Class :			CRRECToolBar

	Author :		Johan Rosengren, Abstrakt Mekanik AB
					Iain Clarke

	Date :			2004-05-07

	Purpose :		This class encapsulates a toolbar that can be used with 
					"CRulerRichEditCtrl". The class is derived from "CEnToolBar", 
					and manages a formatting toolbar

	Description :	A "CEnToolBar"-derived class. Reads a toolbar resource 
					with the ID "TOOLBAR_CONTROL" and adds combo controls for 
					font name and -size, as well as a color picker at the 
					positions "FONT_NAME_POS", "FONT_SIZE_POS" and 
					"FONT_COLOR_POS" respectively.

	Usage :			Created by the rich edit mini-editor.

    Note :			Very heavily modified by .dan.g.

   ========================================================================*/

#include "stdafx.h"
#include "RRECToolBar.h"
#include "resource.h"
#include "ids.h"

#include "..\shared\Themed.h"
#include "..\3rdparty\colourpopup.h"

#include <tchar.h>
#include <afxpriv.h>

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

extern UINT urm_SETCURRENTFONTNAME;
extern UINT urm_SETCURRENTFONTSIZE;
extern UINT urm_SETCURRENTFONTCOLOR;

/////////////////////////////////////////////////////////////////////////////
// CRRECToolBar

CRRECToolBar::CRRECToolBar() : m_crBack(GetSysColor(COLOR_WINDOW)), m_crText(GetSysColor(COLOR_WINDOWTEXT))
{
}

CRRECToolBar::~CRRECToolBar()
{
}

BEGIN_MESSAGE_MAP(CRRECToolBar, CEnToolBar)
	//{{AFX_MSG_MAP(CRRECToolBar)
	ON_CBN_SELCHANGE(DROPDOWN_FONT, OnSelchangeFont)
	ON_CBN_SELCHANGE(DROPDOWN_SIZE, OnSelchangeSize)
	ON_MESSAGE(CPN_SELENDOK, OnColorButton)
	ON_WM_ENABLE()
	ON_WM_SIZE()
	//}}AFX_MSG_MAP
	ON_MESSAGE(WM_SETFONT, OnSetFont)
	ON_MESSAGE(WM_IDLEUPDATECMDUI, OnIdleUpdateCmdUI)
	ON_NOTIFY_REFLECT(TBN_DROPDOWN, OnColorDropDown)
END_MESSAGE_MAP()


BOOL CRRECToolBar::Create( CWnd* parent)
{
	if (CreateEx(parent, TBSTYLE_FLAT | TBSTYLE_WRAPABLE, WS_CHILD | WS_VISIBLE | CBRS_ALIGN_TOP/* | WS_CLIPCHILDREN*/, 
				CRect(0, 0, 0, 0), TOOLBAR_CONTROL) && LoadToolBar(TOOLBAR_CONTROL))
	{
		SetImage(IDB_TOOLBAR, RGB(255, 0, 255));

		// very important - turn OFF all the auto positioning and sizing
		// by default have no borders
		UINT nStyle = GetBarStyle();
		nStyle &= ~(CCS_NORESIZE | CCS_NOPARENTALIGN | CBRS_BORDER_ANY);
		nStyle |= (CBRS_SIZE_FIXED | CBRS_TOOLTIPS | CBRS_FLYBY);
		SetBarStyle(nStyle);

		SetOwner(parent);
		GetToolBarCtrl().SetExtendedStyle(TBSTYLE_EX_DRAWDDARROWS);

		// colour drop buttons
		int nIndex = CommandToIndex(BUTTON_BACKCOLOR);
		SetButtonStyle(nIndex, GetButtonStyle(nIndex) | TBSTYLE_DROPDOWN);

		nIndex = CommandToIndex(BUTTON_TEXTCOLOR);
		SetButtonStyle(nIndex, GetButtonStyle(nIndex) | TBSTYLE_DROPDOWN);

		/////////////////////////////////////
		// Map in combo boxes
		//

		TBBUTTON buttons[] = 
		{
			{ 0, FONT_NAME_POS, 0, TBSTYLE_SEP, 0, NULL },
			{ 0, -1, 0, TBSTYLE_SEP, 0, NULL },
			{ 0, FONT_SIZE_POS, 0, TBSTYLE_SEP, 0, NULL },
			{ 0, -1, 0, TBSTYLE_SEP, 0, NULL },
		};
		const int BTNCOUNT = sizeof(buttons) / sizeof(TBBUTTON);

		for (int nBtn = 0; nBtn < BTNCOUNT; nBtn++)
			GetToolBarCtrl().InsertButton(nBtn, &buttons[nBtn]);

		CRect rect;

		TBBUTTONINFO tbi;
		tbi.cbSize = sizeof( TBBUTTONINFO );
		tbi.cx = FONT_COMBO_WIDTH;
		tbi.dwMask = TBIF_SIZE;  // By index

		// The font name combo
		GetToolBarCtrl().SetButtonInfo( FONT_NAME_POS, &tbi );
		GetItemRect( FONT_NAME_POS, &rect );
		rect.bottom += COMBO_HEIGHT;

		if (!m_font.Create( WS_CHILD | WS_VSCROLL |	WS_VISIBLE | CBS_AUTOHSCROLL | 
							CBS_DROPDOWNLIST | CBS_SORT | CBS_HASSTRINGS, 
							rect, this, DROPDOWN_FONT ))
			return FALSE;

		m_font.SetFont( CFont::FromHandle( ( HFONT ) ::GetStockObject( DEFAULT_GUI_FONT ) ) );
		m_font.FillCombo();

		// The font size combo
		tbi.cx = COMBO_WIDTH;
		GetToolBarCtrl().SetButtonInfo( FONT_SIZE_POS, &tbi );
		GetItemRect( FONT_SIZE_POS, &rect );
		rect.bottom += COMBO_HEIGHT;
		
		if (!m_size.Create(WS_CHILD | WS_VISIBLE | CBS_AUTOHSCROLL | CBS_DROPDOWNLIST | 
							CBS_HASSTRINGS, rect, this, DROPDOWN_SIZE ))
			return FALSE;

		m_size.SetFont( CFont::FromHandle( ( HFONT ) ::GetStockObject( DEFAULT_GUI_FONT ) ) );
		m_size.FillCombo();

		return TRUE;
	}
	
	return FALSE;
}

/////////////////////////////////////////////////////////////////////////////
// CRRECToolBar message handlers


LRESULT CRRECToolBar::OnSetFont(WPARAM /*wParam*/, LPARAM /*lParam*/)
{
	// eat this
	return 0L;
}


LRESULT CRRECToolBar::OnIdleUpdateCmdUI(WPARAM /*wParam*/, LPARAM /*lParam*/)
{
	// eat these because our parent maintains our state
	return 0L;
}

BOOL CRRECToolBar::GetDroppedState() const
{
	return m_font.GetDroppedState() ||
			m_size.GetDroppedState();
}

void CRRECToolBar::OnSelchangeFont() 
{

	CString font;
	int index = m_font.GetCurSel();
	if( index != CB_ERR )
	{
		m_font.GetLBText( index, font );
		GetParent()->SendMessage( urm_SETCURRENTFONTNAME, ( WPARAM ) ( LPCTSTR ) font, 0 );
	}	
}

void CRRECToolBar::OnSelchangeSize() 
{
	int index = m_size.GetCurSel();

	if( index != CB_ERR )
	{
		CString sz;
		m_size.GetLBText( index, sz );
		int size = _ttoi( ( LPCTSTR ) sz );

		GetParent()->SendMessage( urm_SETCURRENTFONTSIZE, 0, ( LPARAM ) size );
	}
}

LRESULT CRRECToolBar::OnColorButton( WPARAM color, LPARAM nCtrlID) 
{
	BOOL bForeground = (nCtrlID == BUTTON_TEXTCOLOR);

	if (bForeground)
		m_crText = color;
	else
		m_crBack = color;

	Invalidate();
	UpdateWindow();

	GetParent()->SendMessage( urm_SETCURRENTFONTCOLOR, bForeground, ( LPARAM ) color );
	
	return 0;
}

/////////////////////////////////////////////////////////////////////////////
// CRRECToolBar UI updaters

BOOL CRRECToolBar::SetFontName( const CString& font )
{
	if( m_font.m_hWnd )
		return m_font.SelectFontName( font );

	return FALSE;
}

BOOL CRRECToolBar::SetFontSize( int size )
{
	if( m_size.m_hWnd )
		return m_size.SelectSize( size );

	return FALSE;
}

void CRRECToolBar::SetFontColor( COLORREF color, BOOL bForeground )
{
	if (bForeground)
		m_crText = color;
	else
		m_crBack = color;

	if (GetSafeHwnd())
		Invalidate();
}

BOOL CRRECToolBar::SetButtonState(int nID, UINT nState)
{
	if (!IsWindowEnabled())
		nState &= ~TBSTATE_ENABLED;
	else
		nState |= TBSTATE_ENABLED;

	return GetToolBarCtrl().SetState(nID, nState);
}

void CRRECToolBar::OnEnable(BOOL bEnable) 
{
	CEnToolBar::OnEnable(bEnable);
	
	m_font.EnableWindow(bEnable);
	m_size.EnableWindow(bEnable);
}

BOOL CRRECToolBar::IsButtonChecked(int nID) const
{
	return (GetToolBarCtrl().GetState(nID) & TBSTATE_CHECKED);
}

BOOL CRRECToolBar::CheckButton(int nID, BOOL bChecked)
{
	UINT nState = GetToolBarCtrl().GetState(nID);

	if (!bChecked)
		nState &= ~TBSTATE_CHECKED;
	else
		nState |= TBSTATE_CHECKED;

	return SetButtonState(nID, nState);
}

void CRRECToolBar::OnSize(UINT nType, int cx, int cy) 
{
	GetToolBarCtrl().SetButtonSize(m_sizeButton);
	
	CEnToolBar::OnSize(nType, cx, cy);
	
	CSize size(GetToolBarCtrl().GetButtonSize());

	if (m_font.GetSafeHwnd())
	{
		CRect rDiv;

		// calc length after which we want to start shortening ctrls
		GetItemRect(1, &rDiv); // divider
		const int DEFCTRLSWIDTH = FONT_COMBO_WIDTH + SIZE_COMBO_WIDTH + 
									(5 * rDiv.Width()) / 2; // 2.5 separators

		// if the toolbar length is less than the default
		// width of the embedded widgets we reduce the 
		// font combo as far as we can.
		TBBUTTONINFO tbi;
		tbi.cbSize = sizeof( TBBUTTONINFO );
		tbi.dwMask = TBIF_SIZE;  // By index
		
		CRect rect;
		GetItemRect(FONT_NAME_POS, &rect);
		
		int nNewWidth = FONT_COMBO_WIDTH - max(0, DEFCTRLSWIDTH - cx);
		nNewWidth = max(nNewWidth, MIN_FONT_COMBO_WIDTH);

		if (nNewWidth != rect.Width())
		{
			rect.right = rect.left + nNewWidth;
			rect.bottom += COMBO_HEIGHT;
			GetDlgItem(DROPDOWN_FONT)->MoveWindow(rect);
			
			// update toolbar item size also
			tbi.cx = (WORD)rect.Width();
			GetToolBarCtrl().SetButtonInfo(FONT_NAME_POS, &tbi);
			
			// move the other two items to suit their toolbar rects
			GetItemRect(FONT_SIZE_POS, &rect);
			rect.bottom += COMBO_HEIGHT;
			GetDlgItem(DROPDOWN_SIZE)->MoveWindow(rect);
		}
	}
}

void CRRECToolBar::OnColorDropDown(NMHDR* pNMHDR, LRESULT* pResult)
{
	LPNMTOOLBAR pNMTB = (LPNMTOOLBAR)pNMHDR;
	UINT nBtnID = pNMTB->iItem;

	switch (nBtnID)
	{
	case BUTTON_BACKCOLOR:
	case BUTTON_TEXTCOLOR:
		{
			CRect rButton;
			GetItemRect(CommandToIndex(pNMTB->iItem), rButton);
			ClientToScreen(rButton);

			COLORREF color = GetFontColor(nBtnID == BUTTON_TEXTCOLOR);

			CString defaultText, customText;

			defaultText.LoadString(STRING_DEFAULT);
			customText.LoadString(STRING_CUSTOM);

			new CColourPopup(CPoint(rButton.left, rButton.bottom), color, 
							 this, nBtnID, defaultText, customText, TRUE);
		}
		break;
	}

	*pResult = 0;
}

LRESULT CRRECToolBar::OnItemPostPaint(LPNMTBCUSTOMDRAW lpNMCustomDraw)
{
	UINT nBtnID = lpNMCustomDraw->nmcd.dwItemSpec;

	switch (nBtnID)
	{
	case BUTTON_BACKCOLOR:
	case BUTTON_TEXTCOLOR:
		{
			// paint the lowest 3 lines with the appropriate colour
			// but only as far as the beginning of the drop button
			CRect rColor(lpNMCustomDraw->nmcd.rc);

			if (CThemed().AreControlsThemed())
				rColor.bottom++;
			else
				rColor.DeflateRect(2, 2);

			rColor.top = rColor.bottom - 3;
			rColor.right = rColor.left + m_sizeImage.cx;

			CDC* pDC = CDC::FromHandle(lpNMCustomDraw->nmcd.hdc);
			pDC->FillSolidRect(rColor, GetFontColor(nBtnID == BUTTON_TEXTCOLOR));
		}
		break;
	}

	return CDRF_DODEFAULT;
}