CtrlIconButton.cpp

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//
// CtrlIconButton.cpp
//
// Copyright (c) Shareaza Development Team, 2002-2005.
// This file is part of SHAREAZA (www.shareaza.com)
//
// Shareaza 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.
//
// Shareaza 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 Shareaza; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//

#include "StdAfx.h"
#include "Shareaza.h"
#include "CtrlIconButton.h"
#include "CoolInterface.h"

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

BEGIN_MESSAGE_MAP(CIconButtonCtrl, CWnd)
        //{{AFX_MSG_MAP(CIconButtonCtrl)
        ON_WM_MOUSEMOVE()
        ON_WM_LBUTTONDOWN()
        ON_WM_LBUTTONUP()
        ON_WM_LBUTTONDBLCLK()
        ON_WM_RBUTTONDOWN()
        ON_WM_RBUTTONUP()
        ON_WM_PAINT()
        ON_WM_ERASEBKGND()
        ON_WM_ENABLE()
        //}}AFX_MSG_MAP
END_MESSAGE_MAP()


// CIconButtonCtrl construction

CIconButtonCtrl::CIconButtonCtrl()
{
        m_pImageList.Create( 16, 16, ILC_COLOR32|ILC_MASK, 1, 0 );

        m_bCapture      = FALSE;
        m_bDown         = FALSE;
        m_bCursor       = FALSE;
}

CIconButtonCtrl::~CIconButtonCtrl()
{
}

// CIconButtonCtrl operations

BOOL CIconButtonCtrl::Create(const RECT& rect, CWnd* pParentWnd, UINT nControlID)
{
        return CWnd::Create( NULL, NULL, WS_CHILD|WS_VISIBLE, rect, pParentWnd, nControlID );
}

void CIconButtonCtrl::SetText(LPCTSTR pszText)
{
        CString strText;
        GetWindowText( strText );
        if ( strText == pszText ) return;
        SetWindowText( pszText );
        Invalidate();
}

void CIconButtonCtrl::SetIcon(UINT nIconID)
{
        SetIcon( AfxGetApp()->LoadIcon( nIconID ) );
}

void CIconButtonCtrl::SetIcon(HICON hIcon)
{
        m_pImageList.Add( hIcon );
        RemoveStyle();
}

void CIconButtonCtrl::SetHandCursor(BOOL bCursor)
{
        m_bCursor = bCursor;
}

BOOL CIconButtonCtrl::RemoveStyle()
{
        HINSTANCE hLibrary = LoadLibrary( _T("uxtheme") );
        if ( !hLibrary ) return FALSE;

        HRESULT (WINAPI *pfnSetWindowTheme)(HWND, LPCWSTR, LPCWSTR);

        (FARPROC&)pfnSetWindowTheme = GetProcAddress( hLibrary, "SetWindowTheme" );
        BOOL bSuccess = SUCCEEDED( (*pfnSetWindowTheme)( GetSafeHwnd(), L" ", L" " ) );

        FreeLibrary( hLibrary );

        return bSuccess;
}

// CIconButtonCtrl mouse message handlers

void CIconButtonCtrl::OnMouseMove(UINT nFlags, CPoint point)
{
        if ( ! IsWindowEnabled() ) return;

        CRect rc;
        GetClientRect( &rc );

        if ( m_bDown )
        {
                BOOL bInside = rc.PtInRect( point );
                if ( bInside == m_bCapture ) return;

                m_bCapture = bInside;
        }
        else if ( m_bCapture )
        {
                if ( rc.PtInRect( point ) ) return;

                ReleaseCapture();
                m_bCapture = FALSE;
        }
        else
        {
                SetCapture();
                if ( m_bCursor ) ::SetCursor( theApp.LoadCursor( IDC_HAND ) );
                m_bCapture = TRUE;
        }

        Invalidate();
}

void CIconButtonCtrl::OnLButtonDown(UINT nFlags, CPoint point)
{
        if ( ! IsWindowEnabled() ) return;

        SetFocus();
        SetCapture();
        m_bDown = TRUE;

        Invalidate();
}

void CIconButtonCtrl::OnLButtonUp(UINT nFlags, CPoint point)
{
        if ( m_bDown )
        {
                ReleaseCapture();
                m_bDown = FALSE;

                if ( m_bCapture )
                {
                        RedrawWindow();

                        GetParent()->SendMessage( WM_COMMAND, MAKELONG( GetDlgCtrlID(), 0 ),
                                (LPARAM)GetSafeHwnd() );
                }

                m_bCapture = FALSE;

                Invalidate();
        }
}

void CIconButtonCtrl::OnLButtonDblClk(UINT nFlags, CPoint point)
{
        OnLButtonDown( nFlags, point );
}

void CIconButtonCtrl::OnRButtonDown(UINT nFlags, CPoint point)
{

}

void CIconButtonCtrl::OnRButtonUp(UINT nFlags, CPoint point)
{

}

// CIconButtonCtrl paint message handlers

BOOL CIconButtonCtrl::OnEraseBkgnd(CDC* pDC)
{
        return TRUE;
}

void CIconButtonCtrl::OnPaint()
{
        CPaintDC dc( this );
        COLORREF crBack;
        CString strText;
        CPoint ptIcon;
        CRect rc;

        GetClientRect( &rc );
        GetWindowText( strText );

        if ( strText.GetLength() )
        {
                ptIcon.x = rc.left + 3;
        }
        else
        {
                ptIcon.x = ( rc.left + rc.right ) / 2 - 8;
        }

        ptIcon.y = ( rc.top + rc.bottom ) / 2 - 8;

        if ( m_bDown && m_bCapture )
        {
                crBack = CoolInterface.m_crBackCheckSel;
                dc.Draw3dRect( &rc, CoolInterface.m_crBorder, CoolInterface.m_crBorder );
                rc.DeflateRect( 1, 1 );

                ImageList_DrawEx( m_pImageList.m_hImageList, 0, dc.GetSafeHdc(),
                        ptIcon.x, ptIcon.y, 0, 0, crBack, CLR_NONE, ILD_NORMAL );
                dc.ExcludeClipRect( ptIcon.x, ptIcon.y, ptIcon.x + 16, ptIcon.y + 16 );
        }
        else if ( m_bDown != m_bCapture )
        {
                crBack = CoolInterface.m_crBackSel;
                dc.Draw3dRect( &rc, CoolInterface.m_crBorder, CoolInterface.m_crBorder );
                rc.DeflateRect( 1, 1 );

                ptIcon.Offset( -1, -1 );
                dc.FillSolidRect( ptIcon.x, ptIcon.y, 18, 2, crBack );
                dc.FillSolidRect( ptIcon.x, ptIcon.y + 2, 2, 16, crBack );

                ptIcon.Offset( 2, 2 );
                dc.SetTextColor( CoolInterface.m_crShadow );
                ImageList_DrawEx( m_pImageList.m_hImageList, 0, dc.GetSafeHdc(),
                        ptIcon.x, ptIcon.y, 0, 0, crBack, CLR_NONE, ILD_MASK );

                ptIcon.Offset( -2, -2 );
                ImageList_DrawEx( m_pImageList.m_hImageList, 0, dc.GetSafeHdc(),
                        ptIcon.x, ptIcon.y, 0, 0, CLR_NONE, CLR_NONE, ILD_NORMAL );

                dc.ExcludeClipRect( ptIcon.x, ptIcon.y, ptIcon.x + 18, ptIcon.y + 18 );
                ptIcon.Offset( 1, 1 );
        }
        else if ( GetFocus() == this && IsWindowEnabled() )
        {
                crBack = CoolInterface.m_crBackNormal;
                dc.Draw3dRect( &rc, CoolInterface.m_crBorder, CoolInterface.m_crBorder );
                rc.DeflateRect( 1, 1 );

                ImageList_DrawEx( m_pImageList.m_hImageList, 0, dc.GetSafeHdc(),
                        ptIcon.x, ptIcon.y, 0, 0, crBack, CLR_NONE, ILD_NORMAL );
                dc.ExcludeClipRect( ptIcon.x, ptIcon.y, ptIcon.x + 16, ptIcon.y + 16 );
        }
        else if ( IsWindowEnabled() )
        {
                crBack = CoolInterface.m_crBackNormal;
                dc.Draw3dRect( &rc, CoolInterface.m_crShadow, CoolInterface.m_crShadow );
                rc.DeflateRect( 1, 1 );

                ImageList_DrawEx( m_pImageList.m_hImageList, 0, dc.GetSafeHdc(),
                        ptIcon.x, ptIcon.y, 0, 0, crBack, CoolInterface.m_crShadow, ILD_BLEND50 );
                dc.ExcludeClipRect( ptIcon.x, ptIcon.y, ptIcon.x + 16, ptIcon.y + 16 );
        }
        else
        {
                crBack = CoolInterface.m_crMidtone;
                dc.Draw3dRect( &rc, CoolInterface.m_crShadow, CoolInterface.m_crShadow );
                rc.DeflateRect( 1, 1 );

                dc.SetTextColor( CoolInterface.m_crDisabled );
                dc.SetBkColor( crBack );

//              ImageList_DrawEx( m_pImageList.m_hImageList, 0, dc.GetSafeHdc(),
//                      ptIcon.x, ptIcon.y, 0, 0, crBack, CLR_NONE, ILD_MASK );

                ImageList_DrawEx( m_pImageList.m_hImageList, 0, dc.GetSafeHdc(),
                        ptIcon.x, ptIcon.y, 0, 0, crBack, CoolInterface.m_crDisabled, ILD_BLEND50 );

                dc.ExcludeClipRect( ptIcon.x, ptIcon.y, ptIcon.x + 16, ptIcon.y + 16 );
        }

        if ( strText.GetLength() )
        {
                rc.left += 21;

                CFont* pOldFont = (CFont*)dc.SelectObject( &theApp.m_gdiFont );

                dc.SetBkColor( crBack );
                dc.SetTextColor( IsWindowEnabled() ? CoolInterface.m_crCmdText : CoolInterface.m_crDisabled );
                dc.ExtTextOut( rc.left + 2, ptIcon.y + 1, ETO_CLIPPED|ETO_OPAQUE, &rc, strText, NULL );
                dc.SelectObject( pOldFont );

                rc.right = rc.left;
                rc.left -= 21;
        }

        dc.FillSolidRect( &rc, crBack );
}

void CIconButtonCtrl::OnEnable(BOOL bEnable)
{
        CWnd::OnEnable( bEnable );
        Invalidate();
}

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