本文整理汇总了C++中wxMemoryDC::SetBackgroundMode方法的典型用法代码示例。如果您正苦于以下问题：C++ wxMemoryDC::SetBackgroundMode方法的具体用法？C++ wxMemoryDC::SetBackgroundMode怎么用？C++ wxMemoryDC::SetBackgroundMode使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类wxMemoryDC的用法示例。
在下文中一共展示了wxMemoryDC::SetBackgroundMode方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: OnTimer
void SjOscWindow::OnTimer(wxTimerEvent&)
{
SJ_FORCE_IN_HERE_ONLY_ONCE;
if( m_oscModule )
{
// volume stuff
long volume, maxVolume = 1;
bool volumeBeat;
// other objects
long i;
bool titleChanged, forceOscAnim, forceSpectrAnim;
wxString newTitle;
// get data
g_mainFrame->m_player.GetVisData(m_bufferStart, m_sampleCount*SJ_WW_CH*SJ_WW_BYTERES, 0);
// get window client size, correct offscreen DC if needed
wxSize clientSize = m_oscModule->m_oscWindow->GetClientSize();
if( clientSize.x != m_offscreenBitmap.GetWidth() || clientSize.y != m_offscreenBitmap.GetHeight() )
{
m_offscreenBitmap.Create(clientSize.x, clientSize.y);
m_offscreenDc.SelectObject(m_offscreenBitmap);
}
// calculate the points for the lines, collect volume
m_oscilloscope->Calc(clientSize, m_bufferStart, volume);
if( m_oscModule->m_showFlags&SJ_OSC_SHOW_SPECTRUM )
{
m_spectrum->Calc(clientSize, m_bufferStart);
}
// get data that are shared between the threads
{
titleChanged = m_oscModule->m_titleChanged;
m_oscModule->m_titleChanged = FALSE;
if( titleChanged )
{
newTitle = m_oscModule->m_trackName;
if( newTitle.IsEmpty() )
{
newTitle = SJ_PROGRAM_NAME;
}
else if( !m_oscModule->m_leadArtistName.IsEmpty() )
{
newTitle.Prepend(m_oscModule->m_leadArtistName + wxT(" - "));
}
}
forceOscAnim = m_oscModule->m_forceOscAnim;
m_oscModule->m_forceOscAnim = FALSE;
forceSpectrAnim = m_oscModule->m_forceSpectrAnim;
m_oscModule->m_forceSpectrAnim = FALSE;
}
// calculate volume, volume is theoretically max. 255, normally lesser
if( titleChanged ) { maxVolume = 1; }
if( volume > maxVolume ) { maxVolume = volume; }
volumeBeat = (volume > maxVolume/2);
// erase screen
m_offscreenDc.SetPen(*wxTRANSPARENT_PEN);
{
// blue gradient background
#define BG_STEPS 88
int rowH = (clientSize.y/BG_STEPS)+1;
for( i = 0; i < BG_STEPS; i++ )
{
m_bgBrush.SetColour(0, 0, i);
m_offscreenDc.SetBrush(m_bgBrush);
m_offscreenDc.DrawRectangle(0, i*rowH, clientSize.x, rowH);
}
}
// draw text (very background)
{
m_offscreenDc.SetBackgroundMode(wxTRANSPARENT);
m_offscreenDc.SetTextForeground(m_textColour);
m_title->Draw(m_offscreenDc, clientSize, titleChanged, newTitle);
}
// draw figures (they lay in backgroud)
if( m_oscModule->m_showFlags&SJ_OSC_SHOW_FIGURES )
{
long bgLight = 100;
// draw hands (optional)
m_hands->Draw(m_offscreenDc, clientSize, volume, bgLight, titleChanged);
// draw rotor (optional)
m_rotor->Draw(m_offscreenDc, clientSize, m_starfield->IsRunning(), titleChanged, volume, bgLight);
// draw firework (optional)
m_firework->Draw(m_offscreenDc, clientSize, titleChanged, m_starfield->IsRunning(), volumeBeat, bgLight);
}
// draw starfield (optional)
//.........这里部分代码省略.........