174 lines
4.1 KiB
C++
174 lines
4.1 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/qt/dcclient.cpp
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// Author: Peter Most, Javier Torres, Mariano Reingart
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// Copyright: (c) 2010 wxWidgets dev team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include <QtGui/QPicture>
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#ifndef WX_PRECOMP
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#include "wx/log.h"
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#include "wx/window.h"
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#endif // WX_PRECOMP
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#include "wx/dcclient.h"
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#include "wx/qt/dcclient.h"
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#include <QtWidgets/QScrollArea>
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#include <QtGui/QPainter>
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//##############################################################################
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namespace
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{
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class QtPictureSetter
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{
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public:
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QtPictureSetter(wxWindow *window, QPicture *pict)
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: m_window( window )
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{
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m_window->QtSetPicture( pict );
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}
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~QtPictureSetter()
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{
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m_window->QtSetPicture( NULL );
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}
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private:
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wxWindow* const m_window;
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wxDECLARE_NO_COPY_CLASS(QtPictureSetter);
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};
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}
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wxIMPLEMENT_CLASS(wxWindowDCImpl,wxQtDCImpl);
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wxWindowDCImpl::wxWindowDCImpl( wxDC *owner )
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: wxQtDCImpl( owner )
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{
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m_window = NULL;
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m_ok = false;
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m_qtPainter = new QPainter();
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}
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wxWindowDCImpl::wxWindowDCImpl( wxDC *owner, wxWindow *win )
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: wxQtDCImpl( owner )
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{
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m_window = win;
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m_qtPainter = m_window->QtGetPainter();
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// if we're not inside a Paint event, painter will invalid
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m_ok = m_qtPainter != NULL;
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}
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wxWindowDCImpl::~wxWindowDCImpl()
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{
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if ( m_ok )
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{
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m_ok = false;
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}
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if ( m_window )
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{
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// do not destroy in base class as it is owned by the window
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m_qtPainter = NULL;
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}
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}
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//##############################################################################
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wxIMPLEMENT_CLASS(wxClientDCImpl,wxWindowDCImpl);
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wxClientDCImpl::wxClientDCImpl( wxDC *owner )
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: wxWindowDCImpl( owner )
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{
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}
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wxClientDCImpl::wxClientDCImpl( wxDC *owner, wxWindow *win )
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: wxWindowDCImpl( owner )
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{
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m_window = win;
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m_qtPainter = new QPainter();
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m_pict.reset(new QPicture());
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m_ok = m_qtPainter->begin( m_pict.get() );
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QtPreparePainter();
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}
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wxClientDCImpl::~wxClientDCImpl()
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{
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/* Paint to a QPicture that will then be painted in the next
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* paint event of that window (a paint event will be generated
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* when this wxClientDC is done). */
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if ( m_ok )
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{
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m_qtPainter->end();
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m_ok = false;
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if ( m_window != NULL )
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{
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QtPictureSetter pictureSetter(m_window, m_pict.get());
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// get the inner widget in scroll areas:
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QWidget *widget;
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if ( m_window->QtGetScrollBarsContainer() )
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{
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widget = m_window->QtGetScrollBarsContainer()->viewport();
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} else {
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widget = m_window->GetHandle();
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}
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// force paint event if there is something to replay and
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// if not currently inside a paint event (to avoid recursion)
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QRect rect = m_pict->boundingRect();
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if ( !m_pict->isNull() && !widget->paintingActive() && !rect.isEmpty() )
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{
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// only force the update of the rect affected by the DC
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widget->update( rect );
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}
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else
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{
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// Not drawing anything, reset picture to avoid issues in handler
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m_pict->setData( NULL, 0 );
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}
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// let destroy the m_qtPainter (see inherited classes destructors)
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m_window = NULL;
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}
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}
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// Painter will be deleted by base class
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}
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//##############################################################################
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wxIMPLEMENT_CLASS(wxPaintDCImpl,wxClientDCImpl);
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wxPaintDCImpl::wxPaintDCImpl( wxDC *owner )
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: wxWindowDCImpl( owner )
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{
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if ( m_ok )
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{
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QtPreparePainter();
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}
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}
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wxPaintDCImpl::wxPaintDCImpl( wxDC *owner, wxWindow *win )
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: wxWindowDCImpl( owner, win )
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{
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if ( m_ok )
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{
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QtPreparePainter();
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}
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}
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