src/generic/panelg.cpp

///////////////////////////////////////////////////////////////////////////////
// Name:        src/generic/panelg.cpp
// Purpose:     Generic wxPanel implementation.
// Author:      Vadim Zeitlin
// Created:     2011-03-20
// RCS-ID:      $Id: wxhead.cpp,v 1.11 2010-04-22 12:44:51 zeitlin Exp $
// Copyright:   (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

// ============================================================================
// declarations
// ============================================================================

// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------

// for compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/dc.h"
    #include "wx/panel.h"
#endif // WX_PRECOMP

#ifdef wxHAS_GENERIC_PANEL

// ============================================================================
// implementation
// ============================================================================

void wxPanel::DoSetBackgroundBitmap(const wxBitmap& bmp)
{
    m_bitmapBg = bmp;

    if ( m_bitmapBg.IsOk() )
    {
        Connect(wxEVT_ERASE_BACKGROUND,
                wxEraseEventHandler(wxPanel::OnEraseBackground));
    }
    else
    {
        Disconnect(wxEVT_ERASE_BACKGROUND,
                   wxEraseEventHandler(wxPanel::OnEraseBackground));
    }
}

void wxPanel::OnEraseBackground(wxEraseEvent& event)
{
    wxDC& dc = *event.GetDC();

    const wxSize clientSize = GetClientSize();
    const wxSize bitmapSize = m_bitmapBg.GetSize();

    for ( int x = 0; x < clientSize.x; x += bitmapSize.x )
    {
        for ( int y = 0; y < clientSize.y; y += bitmapSize.y )
        {
            dc.DrawBitmap(m_bitmapBg, x, y);
        }
    }
}

#endif // wxHAS_GENERIC_PANEL
Commit	Line	Data
	1	///////////////////////////////////////////////////////////////////////////////
	2	// Name: src/generic/panelg.cpp
	3	// Purpose: Generic wxPanel implementation.
	4	// Author: Vadim Zeitlin
	5	// Created: 2011-03-20
	6	// RCS-ID: $Id: wxhead.cpp,v 1.11 2010-04-22 12:44:51 zeitlin Exp $
	7	// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
	8	// Licence: wxWindows licence
	9	///////////////////////////////////////////////////////////////////////////////
	10
	11	// ============================================================================
	12	// declarations
	13	// ============================================================================
	14
	15	// ----------------------------------------------------------------------------
	16	// headers
	17	// ----------------------------------------------------------------------------
	18
	19	// for compilers that support precompilation, includes "wx.h".
	20	#include "wx/wxprec.h"
	21
	22	#ifdef __BORLANDC__
	23	#pragma hdrstop
	24	#endif
	25
	26	#ifndef WX_PRECOMP
	27	#include "wx/dc.h"
	28	#include "wx/panel.h"
	29	#endif // WX_PRECOMP
	30
	31	#ifdef wxHAS_GENERIC_PANEL
	32
	33	// ============================================================================
	34	// implementation
	35	// ============================================================================
	36
	37	void wxPanel::DoSetBackgroundBitmap(const wxBitmap& bmp)
	38	{
	39	m_bitmapBg = bmp;
	40
	41	if ( m_bitmapBg.IsOk() )
	42	{
	43	Connect(wxEVT_ERASE_BACKGROUND,
	44	wxEraseEventHandler(wxPanel::OnEraseBackground));
	45	}
	46	else
	47	{
	48	Disconnect(wxEVT_ERASE_BACKGROUND,
	49	wxEraseEventHandler(wxPanel::OnEraseBackground));
	50	}
	51	}
	52
	53	void wxPanel::OnEraseBackground(wxEraseEvent& event)
	54	{
	55	wxDC& dc = *event.GetDC();
	56
	57	const wxSize clientSize = GetClientSize();
	58	const wxSize bitmapSize = m_bitmapBg.GetSize();
	59
	60	for ( int x = 0; x < clientSize.x; x += bitmapSize.x )
	61	{
	62	for ( int y = 0; y < clientSize.y; y += bitmapSize.y )
	63	{
	64	dc.DrawBitmap(m_bitmapBg, x, y);
	65	}
	66	}
	67	}
	68
	69	#endif // wxHAS_GENERIC_PANEL