///////////////////////////////////////////////////////////////////////////////
-// Name: generic/caret.cpp
+// Name: src/generic/caret.cpp
// Purpose: generic wxCaret class implementation
// Author: Vadim Zeitlin (original code by Robert Roebling)
// Modified by:
// Created: 25.05.99
// RCS-ID: $Id$
-// Copyright: (c) wxWindows team
+// Copyright: (c) wxWidgets team
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "caret.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
+#if wxUSE_CARET
+
#ifndef WX_PRECOMP
#include "wx/window.h"
#include "wx/dcclient.h"
+ #include "wx/dcmemory.h"
#endif //WX_PRECOMP
#include "wx/caret.h"
// timer stuff
// ----------------------------------------------------------------------------
-wxCaretTimer::wxCaretTimer(wxCaret *caret)
-{
- m_caret = caret;
+wxCaretTimer::wxCaretTimer(wxCaret *caret)
+{
+ m_caret = caret;
}
-void wxCaretTimer::Notify()
-{
- m_caret->OnTimer();
+void wxCaretTimer::Notify()
+{
+ m_caret->OnTimer();
}
void wxCaret::OnTimer()
void wxCaret::InitGeneric()
{
- m_hasFocus = TRUE;
- m_blinkedOut = FALSE;
+ m_hasFocus = true;
+ m_blinkedOut = true;
+#ifndef wxHAS_CARET_USING_OVERLAYS
+ m_xOld =
+ m_yOld = -1;
+ m_bmpUnderCaret.Create(m_width, m_height);
+#endif
}
wxCaret::~wxCaret()
if ( IsVisible() )
{
// stop blinking
- m_timer.Stop();
+ if ( m_timer.IsRunning() )
+ m_timer.Stop();
}
}
void wxCaret::DoShow()
{
- m_timer.Start(GetBlinkTime());
+ int blinkTime = GetBlinkTime();
+ if ( blinkTime )
+ m_timer.Start(blinkTime);
- m_blinkedOut = TRUE;
- Blink();
+ if ( m_blinkedOut )
+ Blink();
}
void wxCaret::DoHide()
void wxCaret::DoMove()
{
- if ( IsVisible() && !m_blinkedOut )
+#ifdef wxHAS_CARET_USING_OVERLAYS
+ m_overlay.Reset();
+#endif
+ if ( IsVisible() )
{
- Blink();
+ if ( !m_blinkedOut )
+ {
+ // hide it right now and it will be shown the next time it blinks
+ Blink();
+
+ // but if the caret is not blinking, we should blink it back into
+ // visibility manually
+ if ( !m_timer.IsRunning() )
+ Blink();
+ }
+ }
+ //else: will be shown at the correct location when it is shown
+}
+
+void wxCaret::DoSize()
+{
+ int countVisible = m_countVisible;
+ if (countVisible > 0)
+ {
+ m_countVisible = 0;
+ DoHide();
+ }
+#ifdef wxHAS_CARET_USING_OVERLAYS
+ m_overlay.Reset();
+#else
+ // Change bitmap size
+ m_bmpUnderCaret = wxBitmap(m_width, m_height);
+#endif
+ if (countVisible > 0)
+ {
+ m_countVisible = countVisible;
+ DoShow();
}
- //else: will be shown at the correct location next time it blinks
}
// ----------------------------------------------------------------------------
void wxCaret::OnSetFocus()
{
- m_hasFocus = TRUE;
+ m_hasFocus = true;
- Refresh();
+ if ( IsVisible() )
+ Refresh();
}
void wxCaret::OnKillFocus()
{
- m_hasFocus = FALSE;
+ m_hasFocus = false;
if ( IsVisible() )
{
// the caret must be shown - otherwise, if it is hidden now, it will
// stay so until the focus doesn't return because it won't blink any
// more
- m_blinkedOut = FALSE;
- }
- Refresh();
+ // hide it first if it isn't hidden ...
+ if ( !m_blinkedOut )
+ Blink();
+
+ // .. and show it in the new style
+ Blink();
+ }
}
// ----------------------------------------------------------------------------
void wxCaret::Refresh()
{
- if ( !m_blinkedOut )
+ wxClientDC dcWin(GetWindow());
+// this is the new code, switch to 0 if this gives problems
+#ifdef wxHAS_CARET_USING_OVERLAYS
+ wxDCOverlay dcOverlay( m_overlay, &dcWin, m_x, m_y, m_width , m_height );
+ if ( m_blinkedOut )
{
- wxClientDC dc(GetWindow());
- DoDraw(&dc);
+ dcOverlay.Clear();
}
else
{
- // FIXME can't be less efficient than this... we probably should use
- // backing store for the caret instead of leaving all the burden
- // of correct refresh logic handling to the user code
-
- // NB: +1 is needed!
- wxRect rect(m_x, m_y, m_width + 1, m_height + 1);
- GetWindow()->Refresh(FALSE, &rect);
+ DoDraw( &dcWin, GetWindow() );
+ }
+#else
+ wxMemoryDC dcMem;
+ dcMem.SelectObject(m_bmpUnderCaret);
+ if ( m_blinkedOut )
+ {
+ // restore the old image
+ dcWin.Blit(m_xOld, m_yOld, m_width, m_height,
+ &dcMem, 0, 0);
+ m_xOld =
+ m_yOld = -1;
}
+ else
+ {
+ if ( m_xOld == -1 && m_yOld == -1 )
+ {
+ // save the part we're going to overdraw
+ dcMem.Blit(0, 0, m_width, m_height,
+ &dcWin, m_x, m_y);
+
+ m_xOld = m_x;
+ m_yOld = m_y;
+ }
+ //else: we already saved the image below the caret, don't do it any
+ // more
+
+ // and draw the caret there
+ DoDraw(&dcWin, GetWindow());
+ }
+#endif
}
-void wxCaret::DoDraw(wxDC *dc)
+void wxCaret::DoDraw(wxDC *dc, wxWindow* win)
{
- dc->SetPen( *wxBLACK_PEN );
+ wxPen pen(*wxBLACK_PEN);
+ wxBrush brush(*wxBLACK_BRUSH);
+ if (win)
+ {
+ wxColour backgroundColour(win->GetBackgroundColour());
+ if (backgroundColour.Red() < 100 &&
+ backgroundColour.Green() < 100 &&
+ backgroundColour.Blue() < 100)
+ {
+ pen = *wxWHITE_PEN;
+ brush = *wxWHITE_BRUSH;
+ }
+ }
+ dc->SetPen( pen );
+ dc->SetBrush(m_hasFocus ? brush : *wxTRANSPARENT_BRUSH);
- // VZ: Robert's code for I-shaped caret - this is nice but doesn't look
- // at all the same as the MSW version and I don't know how to indicate
- // that the window has focus or not with such caret
-#if 0
- 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 );
-#else // 1
- if ( m_hasFocus )
- dc->SetBrush( *wxBLACK_BRUSH );
- dc->DrawRectangle( m_x, m_y, m_width, m_height );
-#endif // 0/1
+ // VZ: unfortunately, the rectangle comes out a pixel smaller when this is
+ // done under wxGTK - no idea why
+ //dc->SetLogicalFunction(wxINVERT);
+
+ dc->DrawRectangle(m_x, m_y, m_width, m_height);
}
+
+#endif // wxUSE_CARET
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