X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/06077aaf2c11135bb9ca18ef33181ab18ac7480e..bb650010c8200174ce824aaadac44e8e5ead194d:/samples/combo/combo.cpp

diff --git a/samples/combo/combo.cpp b/samples/combo/combo.cpp
index 4deda51fec..2d705f1523 100644
--- a/samples/combo/combo.cpp
+++ b/samples/combo/combo.cpp
@@ -85,6 +85,9 @@ public:
 
     void OnIdle( wxIdleEvent& event );
 
+
+    wxCheckBox*     m_cbUseAnim;
+
 protected:
     wxTextCtrl*     m_logWin;
     wxLog*          m_logOld;
@@ -151,6 +154,9 @@ IMPLEMENT_APP(MyApp)
 // 'Main program' equivalent: the program execution "starts" here
 bool MyApp::OnInit()
 {
+    if ( !wxApp::OnInit() )
+        return false;
+
     // create the main application window
     MyFrame *frame = new MyFrame(_T("wxComboCtrl and wxOwnerDrawnComboBox Sample"));
 
@@ -490,6 +496,127 @@ BEGIN_EVENT_TABLE(TreeCtrlComboPopup, wxTreeCtrl)
     EVT_LEFT_DOWN(TreeCtrlComboPopup::OnMouseClick)
 END_EVENT_TABLE()
 
+// ----------------------------------------------------------------------------
+// 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 flags )
+    {
+        MyFrame* myFrame = (MyFrame*) ::wxGetTopLevelParent(this);
+
+        if ( !myFrame->m_cbUseAnim->GetValue() )
+            return true;
+
+        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, rect.width, rect.height, &dc, rect.x, rect.y );
+        memdc.SelectObject(wxNullBitmap); 
+        m_animBackBitmap = bitmap;
+
+        m_animTimer.SetOwner( this, wxID_ANY );
+        m_animTimer.Start( 10, wxTIMER_CONTINUOUS );
+
+        OnTimerEvent(*((wxTimerEvent*)NULL));  // Event is never used, so we can give NULL
+        return false;
+    }
+
+    void OnTimerEvent( wxTimerEvent& WXUNUSED(event) )
+    {
+        bool stopTimer = false;
+
+        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-m_animStart).GetLo();
+            if ( pos < CUSTOM_COMBOBOX_ANIMATION_DURATION )
+            {
+                //
+                // Actual animation happens here
+                //
+                int width = rect.width;
+                int height = rect.height;
+
+                int center_x = rect.x + (width/2);
+                int center_y = rect.y + (height/2);
+
+                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;
+            }
+        }
+
+        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)
 // ----------------------------------------------------------------------------
@@ -730,8 +857,8 @@ MyFrame::MyFrame(const wxString& title)
     colSizer->Add( rowSizer, 0, wxEXPAND|wxALL, 5 );
 
     rowSizer = new wxBoxSizer( wxHORIZONTAL );
-    cc = new wxComboCtrl(panel,2,wxEmptyString,
-                         wxDefaultPosition, wxDefaultSize);
+    cc = new wxComboCtrlWithCustomPopupAnim();
+    cc->Create(panel, wxID_ANY, wxEmptyString);
 
     // Make sure we use popup that allows focusing the listview.
     cc->UseAltPopupWindow();
@@ -879,7 +1006,23 @@ MyFrame::MyFrame(const wxString& title)
 
     topRowSizer->Add( colSizer, 1, wxALL, 2 );
 
-    topRowSizer->Add( m_logWin, 1, wxEXPAND|wxALL, 5 );
+    colSizer = new wxBoxSizer( wxVERTICAL );
+
+    wxStaticBoxSizer* sbSizer = new wxStaticBoxSizer( new wxStaticBox(panel,
+                                                                      wxID_ANY,
+                                                                      wxT("Options")),
+                                                      wxVERTICAL );
+
+    m_cbUseAnim = new wxCheckBox(panel, wxID_ANY, wxT("Custom popup animation for ListView wxComboCtrl"));
+    m_cbUseAnim->SetValue(true);
+    sbSizer->Add( m_cbUseAnim, 0, wxALL, 3 );
+
+    colSizer->Add( sbSizer, 0, wxEXPAND|wxALL, 3 );
+    colSizer->AddSpacer(8);
+    colSizer->Add( new wxStaticText(panel, wxID_ANY, wxT("Log Messages:")), 0, wxTOP|wxLEFT, 3 );
+    colSizer->Add( m_logWin, 1, wxEXPAND|wxALL, 3 );
+
+    topRowSizer->Add( colSizer, 1, wxEXPAND|wxALL, 2 );
     topSizer->Add( topRowSizer, 1, wxEXPAND );
 
     panel->SetSizer( topSizer );