wxCaret now exists not only under MSW but on any supported platform as well

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2564 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/caret.cpp

@@ -0,0 +1,139 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        generic/caret.h
+// Purpose:     generic wxCaret class
+// Author:      Vadim Zeitlin (original code by Robert Roebling)
+// Modified by:
+// Created:     25.05.99
+// RCS-ID:      $Id$
+// Copyright:   (c) wxWindows team
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#if 0 //def __GNUG__
+    #pragma implementation "caret.h"
+#endif
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/wx.h"
+#endif //WX_PRECOMP
+
+#include "wx/caret.h"
+
+// ----------------------------------------------------------------------------
+// global variables for this module
+// ----------------------------------------------------------------------------
+
+// the blink time (common to all carets for MSW compatibility)
+static int gs_blinkTime = 500;  // in milliseconds
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// wxCaret static functions and data
+// ----------------------------------------------------------------------------
+
+
+int wxCaretBase::GetBlinkTime()
+{
+    return gs_blinkTime;
+}
+
+void wxCaretBase::SetBlinkTime(int milliseconds)
+{
+    gs_blinkTime = milliseconds;
+}
+
+// ----------------------------------------------------------------------------
+// initialization and destruction
+// ----------------------------------------------------------------------------
+
+void wxCaret::InitGeneric()
+{
+}
+
+wxCaret::~wxCaret()
+{
+    if ( IsVisible() )
+    {
+        // stop blinking
+        m_timer.Stop();
+    }
+}
+
+// ----------------------------------------------------------------------------
+// showing/hiding/moving the caret (base class interface)
+// ----------------------------------------------------------------------------
+
+void wxCaret::DoShow()
+{
+    m_timer.Start(GetBlinkTime());
+
+    m_blinkedOut = TRUE;
+    Blink();
+}
+
+void wxCaret::DoHide()
+{
+    m_timer.Stop();
+
+    if ( !m_blinkedOut )
+    {
+        Blink();
+    }
+}
+
+void wxCaret::DoMove()
+{
+    if ( IsVisible() && !m_blinkedOut )
+    {
+        Blink();
+    }
+    //else: will be shown at the correct location next time it blinks
+}
+
+// ----------------------------------------------------------------------------
+// drawing the caret
+// ----------------------------------------------------------------------------
+
+void wxCaret::Blink()
+{
+    m_blinkedOut = !m_blinkedOut;
+
+    wxClientDC dc(GetWindow());
+    if ( !m_blinkedOut )
+    {
+        DoDraw(&dc);
+    }
+    else
+    {
+        // FIXME can't be less efficient than this... (+1 needed!)
+        wxRect rect(m_x, m_y, m_width + 1, m_height + 1);
+        GetWindow()->Refresh(FALSE, &rect);
+    }
+}
+
+void wxCaret::DoDraw(wxDC *dc)
+{
+    dc->SetPen( *wxBLACK_PEN );
+    dc->DrawLine( m_x, m_y, m_x+m_width, m_y );
+    dc->DrawLine( m_x, m_y+m_height, m_x+m_width, m_y+m_height );
+    dc->DrawLine( m_x+(m_width/2), m_y, m_x+(m_width/2), m_y+m_height );
+//  dc->DrawLine( m_x+(m_width/2)+1, m_y, m_x+(m_width/2)+1, m_y+m_height );
+}