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//
// This file is part of the aMule Project.
//
// Copyright (c) 2004-2011 aMule Team ( admin@amule.org / http://www.amule.org )
//
// Any parts of this program derived from the xMule, lMule or eMule project,
// or contributed by third-party developers are copyrighted by their
// respective authors.
//
// 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
//
#include <wx/mstream.h>
#include <wx/gifdecod.h>
#include <wx/dcbuffer.h>
#include "MuleGifCtrl.h"
#include "Types.h"
BEGIN_EVENT_TABLE(MuleGifCtrl, wxControl)
EVT_TIMER(GIFTIMERID, MuleGifCtrl::OnTimer)
EVT_PAINT(MuleGifCtrl::OnPaint)
EVT_ERASE_BACKGROUND(MuleGifCtrl::OnErase)
END_EVENT_TABLE()
class MuleGIFDecoder : public wxGIFDecoder
{
public:
MuleGIFDecoder()
{
m_nframe = 0;
}
~MuleGIFDecoder() { }
void GoFirstFrame() { m_nframe = 0; }
void GoNextFrame() { (m_nframe < GetFrameCount() - 1) ? m_nframe++ : m_nframe = 0; }
void GoLastFrame() { m_nframe = GetFrameCount() - 1; }
void ConvertToImage(wxImage* image) { wxGIFDecoder::ConvertToImage(m_nframe, image); }
long GetDelay() { return wxGIFDecoder::GetDelay(m_nframe); }
private:
uint32_t m_nframe;
};
MuleGifCtrl::MuleGifCtrl(
wxWindow *parent,
wxWindowID id,
const wxPoint& pos,
const wxSize& size,
long style,
const wxValidator& validator,
const wxString& name)
:
wxControl(parent, id, pos, size, style, validator, name),
m_decoder(NULL),
m_timer(this, GIFTIMERID)
{
}
MuleGifCtrl::~MuleGifCtrl()
{
m_timer.Stop();
if (m_decoder) {
delete m_decoder;
m_decoder = NULL;
}
}
bool MuleGifCtrl::LoadData(const char* data, int size)
{
if (m_decoder) {
m_timer.Stop();
delete m_decoder;
m_decoder = NULL;
}
wxMemoryInputStream stream(data, size);
m_decoder = new MuleGIFDecoder();
if ( m_decoder->LoadGIF(stream) != wxGIF_OK ) {
delete m_decoder;
m_decoder = NULL;
return false;
}
m_decoder->GoFirstFrame();
wxImage frame;
m_decoder->ConvertToImage( &frame );
m_frame = wxBitmap(frame);
return true;
}
void MuleGifCtrl::Start()
{
if (m_decoder && m_decoder->IsAnimation()) {
m_timer.Stop();
m_decoder->GoLastFrame();
#if wxCHECK_VERSION(2, 9, 0)
wxTimerEvent evt(m_timer);
#else
wxTimerEvent evt;
#endif
OnTimer(evt);
}
}
void MuleGifCtrl::Stop()
{
m_timer.Stop();
}
wxSize MuleGifCtrl::GetBestSize()
{
return m_decoder->GetAnimationSize();
}
void MuleGifCtrl::OnTimer(wxTimerEvent& WXUNUSED(event))
{
if (m_decoder) {
if (m_decoder->IsAnimation()) {
m_decoder->GoNextFrame();
}
wxImage frame;
m_decoder->ConvertToImage(&frame);
m_frame = wxBitmap(frame);
Refresh();
if (m_decoder->IsAnimation()) {
m_timer.Start(m_decoder->GetDelay(), true);
}
}
}
void MuleGifCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
{
wxBufferedPaintDC dc(this);
wxSize clientsize = GetClientSize();
wxSize gifsize = m_decoder->GetAnimationSize();
int x = (clientsize.GetWidth()-gifsize.GetWidth())/2;
int y = (clientsize.GetHeight()-gifsize.GetHeight())/2;
dc.SetBackground(*(wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID)));
dc.Clear();
dc.DrawBitmap(m_frame, x, y, true);
}
// File_checked_for_headers
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