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Make animation of combo-popdown optional.

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Replace wxMiniSleep() + wxYield() implemenation
    by wxTimer based one.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@42470 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
2006-10-26 20:35:57 +00:00
parent 470402b996
commit 30be036c6d
6 changed files with 195 additions and 69 deletions
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117
samples/combo/combo.cpp
View File

@@ -494,65 +494,126 @@ BEGIN_EVENT_TABLE(TreeCtrlComboPopup, wxTreeCtrl)
END_EVENT_TABLE()
// ----------------------------------------------------------------------------
// wxComboCtrl with custom popup animation
// wxComboCtrl with custom popup animation. We use EVT_TIMER, which is quite
// safe, but requires much more can than doing it in a single function (ie.
// AnimateShow) and using combination of wxSleep and wxSafeYield.
// ----------------------------------------------------------------------------
#if wxUSE_TIMER
#define CUSTOM_COMBOBOX_ANIMATION_DURATION 200 // In milliseconds
#include "wx/timer.h"
class wxComboCtrlWithCustomPopupAnim : public wxComboCtrl
{
public:
virtual bool AnimateShow( const wxRect& rect, int WXUNUSED(flags) )
virtual bool AnimateShow( const wxRect& rect, int flags )
{
MyFrame* myFrame = (MyFrame*) ::wxGetTopLevelParent(this);
if ( !myFrame->m_cbUseAnim->GetValue() )
return true;
int width = rect.width;
int height = rect.height;
wxBitmap bitmap( width, height, -1 );
m_animStart = ::wxGetLocalTimeMillis();
m_animRect = rect;
m_animFlags = flags;
wxScreenDC dc;
wxBitmap bitmap( rect.width, rect.height, -1 );
wxMemoryDC memdc( bitmap );
memdc.Blit( 0, 0, width, height, &dc, rect.x, rect.y );
memdc.Blit( 0, 0, rect.width, rect.height, &dc, rect.x, rect.y );
memdc.SelectObject(wxNullBitmap);
m_animBackBitmap = bitmap;
wxLongLong tStart = ::wxGetLocalTimeMillis();
const int delay = 300;
const int resolution = 10;
m_animTimer.SetOwner( this, wxID_ANY );
m_animTimer.Start( 10, wxTIMER_CONTINUOUS );
int center_x = rect.x + (width/2);
int center_y = rect.y + (height/2);
OnTimerEvent(*((wxTimerEvent*)NULL)); // Event is never used, so we can give NULL
return false;
}
double d_height = (double) height;
void OnTimerEvent( wxTimerEvent& WXUNUSED(event) )
{
bool stopTimer = false;
dc.SetPen( *wxBLACK_PEN );
dc.SetBrush( *wxTRANSPARENT_BRUSH );
for (;;)
wxWindow* popup = GetPopupControl()->GetControl();
wxScreenDC dc;
const wxRect& rect = m_animRect;
// Popup was hidden before it was fully shown?
if ( IsPopupWindowState(Hidden) )
{
stopTimer = true;
}
else
{
wxLongLong t = ::wxGetLocalTimeMillis();
int pos = (int) (t-tStart).GetLo();
if ( pos > delay )
break;
int w = (((pos*256)/delay)*width)/256;
int pos = (int) (t-m_animStart).GetLo();
if ( pos < CUSTOM_COMBOBOX_ANIMATION_DURATION )
{
//
// Actual animation happens here
//
int width = rect.width;
int height = rect.height;
double ratio = ((double)w / (double)width);
int h = (int)(d_height * ratio);
dc.DrawRectangle( center_x - w/2, center_y - h/2, w, h );
wxMilliSleep( resolution );
wxYield();
dc.DrawBitmap( bitmap, rect.x, rect.y );
int center_x = rect.x + (width/2);
int center_y = rect.y + (height/2);
if ( IsPopupWindowState(Hidden) )
return true;
double d_height = (double) height;
dc.SetPen( *wxBLACK_PEN );
dc.SetBrush( *wxTRANSPARENT_BRUSH );
int w = (((pos*256)/CUSTOM_COMBOBOX_ANIMATION_DURATION)*width)/256;
double ratio = ((double)w / (double)width);
int h = (int)(d_height * ratio);
dc.DrawBitmap( m_animBackBitmap, rect.x, rect.y );
dc.DrawRectangle( center_x - w/2, center_y - h/2, w, h );
}
else
{
stopTimer = true;
}
}
return true;
if ( stopTimer )
{
dc.DrawBitmap( m_animBackBitmap, rect.x, rect.y );
popup->Move( 0, 0 );
m_animTimer.Stop();
DoShowPopup( m_animRect, m_animFlags );
}
}
protected:
// Popup animation related
wxLongLong m_animStart;
wxTimer m_animTimer;
wxRect m_animRect;
wxBitmap m_animBackBitmap;
int m_animFlags;
private:
DECLARE_EVENT_TABLE()
};
BEGIN_EVENT_TABLE(wxComboCtrlWithCustomPopupAnim, wxComboCtrl)
EVT_TIMER(wxID_ANY, wxComboCtrlWithCustomPopupAnim::OnTimerEvent)
END_EVENT_TABLE()
#else
#define wxComboCtrlWithCustomPopupAnim wxComboCtrl
#endif
// ----------------------------------------------------------------------------
// wxComboCtrl with entirely custom button action (opens file dialog)
// ----------------------------------------------------------------------------