]> git.saurik.com Git - wxWidgets.git/blobdiff - src/dfb/toplevel.cpp
initial (not yet working) code for DirectFB port
[wxWidgets.git] / src / dfb / toplevel.cpp
diff --git a/src/dfb/toplevel.cpp b/src/dfb/toplevel.cpp
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+/////////////////////////////////////////////////////////////////////////////
+// Name:        src/dfb/toplevel.cpp
+// Purpose:     Top level window, abstraction of wxFrame and wxDialog
+// Author:      Vaclav Slavik
+// Created:     2006-08-10
+// RCS-ID:      $Id$
+// Copyright:   (c) 2006 REA Elektronik GmbH
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#include "wx/toplevel.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/dynarray.h"
+#endif // WX_PRECOMP
+
+#include "wx/hashmap.h"
+#include "wx/evtloop.h"
+#include "wx/dfb/private.h"
+
+#define TRACE_EVENTS _T("events")
+#define TRACE_PAINT  _T("paint")
+
+// ============================================================================
+// globals
+// ============================================================================
+
+// mapping of DirectFB windows to wxTLWs:
+WX_DECLARE_HASH_MAP(DFBWindowID, wxTopLevelWindowDFB*,
+                    wxIntegerHash, wxIntegerEqual,
+                    wxDfbWindowsMap);
+static wxDfbWindowsMap gs_dfbWindowsMap;
+
+// ============================================================================
+// helpers
+// ============================================================================
+
+struct wxDfbPaintRequest
+{
+    wxDfbPaintRequest(const wxRect& rect, bool eraseBackground)
+        : m_rect(rect), m_eraseBackground(eraseBackground) {}
+    wxDfbPaintRequest(const wxDfbPaintRequest& r)
+        : m_rect(r.m_rect), m_eraseBackground(r.m_eraseBackground) {}
+
+    wxRect m_rect;
+    bool   m_eraseBackground;
+};
+
+WX_DEFINE_ARRAY_PTR(wxDfbPaintRequest*, wxDfbQueuedPaintRequests);
+
+// ============================================================================
+// wxTopLevelWindowDFB
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// creation & destruction
+// ----------------------------------------------------------------------------
+
+void wxTopLevelWindowDFB::Init()
+{
+    m_isShown = false;
+    m_isMaximized = false;
+    m_fsIsShowing = false;
+    m_sizeSet = false;
+    m_opacity = 255;
+    m_toPaint = new wxDfbQueuedPaintRequests;
+}
+
+bool wxTopLevelWindowDFB::Create(wxWindow *parent,
+                                 wxWindowID id,
+                                 const wxString& title,
+                                 const wxPoint& posOrig,
+                                 const wxSize& sizeOrig,
+                                 long style,
+                                 const wxString &name)
+{
+    m_tlw = this;
+
+    // always create a frame of some reasonable, even if arbitrary, size (at
+    // least for MSW compatibility)
+    wxSize size(sizeOrig);
+    if ( size.x == wxDefaultCoord || size.y == wxDefaultCoord )
+    {
+        wxSize sizeDefault = GetDefaultSize();
+        if ( size.x == wxDefaultCoord )
+            size.x = sizeDefault.x;
+        if ( size.y == wxDefaultCoord )
+            size.y = sizeDefault.y;
+    }
+
+    wxPoint pos(posOrig);
+    if ( pos.x == wxDefaultCoord )
+        pos.x = 0;
+    if ( pos.y == wxDefaultCoord )
+        pos.y = 0;
+
+    // create DirectFB window:
+    IDirectFBDisplayLayerPtr layer = wxDfbGetDisplayLayer();
+    wxCHECK_MSG( layer, false, _T("no display layer") );
+
+    DFBWindowDescription desc;
+    desc.flags = (DFBWindowDescriptionFlags)
+                   (DWDESC_CAPS |
+                    DWDESC_WIDTH | DWDESC_HEIGHT | DWDESC_POSX | DWDESC_POSY);
+    desc.caps = DWCAPS_DOUBLEBUFFER;
+    desc.posx = pos.x;
+    desc.posy = pos.y;
+    desc.width = size.x;
+    desc.height = size.y;
+    if ( !DFB_CALL( layer->CreateWindow(layer, &desc, &m_dfbwin) ) )
+        return false;
+
+    // add the new TLW to DFBWindowID->wxTLW map:
+    DFBWindowID winid;
+    if ( !DFB_CALL( m_dfbwin->GetID(m_dfbwin, &winid) ) )
+        return false;
+    gs_dfbWindowsMap[winid] = this;
+
+    // TLWs are created initially hidden:
+    if ( !DFB_CALL( m_dfbwin->SetOpacity(m_dfbwin, 0) ) )
+        return false;
+
+    wxWindow::Create(NULL, id, pos, size, style, name);
+
+    SetParent(parent);
+    if ( parent )
+        parent->AddChild(this);
+
+    wxTopLevelWindows.Append(this);
+    m_title = title;
+
+    if ( style & (wxSTAY_ON_TOP | wxPOPUP_WINDOW) )
+    {
+        DFB_CALL( m_dfbwin->SetStackingClass(m_dfbwin, DWSC_UPPER) );
+    }
+
+    // direct events in this window to the global event buffer:
+    DFB_CALL( m_dfbwin->AttachEventBuffer(
+                            m_dfbwin, wxEventLoop::GetDirectFBEventBuffer()) );
+
+    return true;
+}
+
+wxTopLevelWindowDFB::~wxTopLevelWindowDFB()
+{
+    m_isBeingDeleted = true;
+
+    wxTopLevelWindows.DeleteObject(this);
+
+    if ( wxTheApp->GetTopWindow() == this )
+        wxTheApp->SetTopWindow(NULL);
+
+    if ( wxTopLevelWindows.empty() && wxTheApp->GetExitOnFrameDelete() )
+    {
+        wxTheApp->ExitMainLoop();
+    }
+
+    WX_CLEAR_ARRAY(*m_toPaint);
+    wxDELETE(m_toPaint);
+
+    // remove the TLW from DFBWindowID->wxTLW map:
+    DFBWindowID winid;
+    if ( DFB_CALL( m_dfbwin->GetID(m_dfbwin, &winid) ) )
+        gs_dfbWindowsMap.erase(winid);
+}
+
+// ----------------------------------------------------------------------------
+// window size & position
+// ----------------------------------------------------------------------------
+
+void wxTopLevelWindowDFB::DoGetPosition(int *x, int *y) const
+{
+    DFB_CALL( m_dfbwin->GetPosition(m_dfbwin, x, y) );
+}
+
+void wxTopLevelWindowDFB::DoGetSize(int *width, int *height) const
+{
+    DFB_CALL( m_dfbwin->GetSize(m_dfbwin, width, height) );
+}
+
+void wxTopLevelWindowDFB::DoMoveWindow(int x, int y, int width, int height)
+{
+    wxPoint curpos = GetPosition();
+    if ( curpos.x != x || curpos.y != y )
+    {
+        DFB_CALL( m_dfbwin->MoveTo(m_dfbwin, x, y) );
+    }
+
+    wxSize cursize = GetSize();
+    if ( cursize.x != width || cursize.y != height )
+    {
+        DFB_CALL( m_dfbwin->Resize(m_dfbwin, width, height) );
+        // we must repaint the window after it changed size:
+        Refresh();
+    }
+}
+
+// ----------------------------------------------------------------------------
+// showing and hiding
+// ----------------------------------------------------------------------------
+
+#warning "FIXME: the rest of this file is almost same as for MGL, merge it"
+bool wxTopLevelWindowDFB::ShowFullScreen(bool show, long style)
+{
+    if (show == m_fsIsShowing) return false; // return what?
+
+    m_fsIsShowing = show;
+
+    if (show)
+    {
+        m_fsSaveStyle = m_windowStyle;
+        m_fsSaveFlag = style;
+        GetPosition(&m_fsSaveFrame.x, &m_fsSaveFrame.y);
+        GetSize(&m_fsSaveFrame.width, &m_fsSaveFrame.height);
+
+        if ( style & wxFULLSCREEN_NOCAPTION )
+            m_windowStyle &= ~wxCAPTION;
+        if ( style & wxFULLSCREEN_NOBORDER )
+            m_windowStyle = wxSIMPLE_BORDER;
+
+        int x, y;
+        wxDisplaySize(&x, &y);
+        SetSize(0, 0, x, y);
+    }
+    else
+    {
+        m_windowStyle = m_fsSaveStyle;
+        SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
+                m_fsSaveFrame.width, m_fsSaveFrame.height);
+    }
+
+    return true;
+}
+
+bool wxTopLevelWindowDFB::Show(bool show)
+{
+    if ( !wxTopLevelWindowBase::Show(show) )
+        return false;
+
+    // hide/show the window by setting its opacity to 0/full:
+    DFB_CALL( m_dfbwin->SetOpacity(m_dfbwin, show ? m_opacity : 0) );
+
+    // If this is the first time Show was called, send size event,
+    // so that the frame can adjust itself (think auto layout or single child)
+    if ( !m_sizeSet )
+    {
+        m_sizeSet = true;
+        wxSizeEvent event(GetSize(), GetId());
+        event.SetEventObject(this);
+        GetEventHandler()->ProcessEvent(event);
+    }
+
+    // FIXME_DFB: do this at all?
+    if ( show && AcceptsFocus() )
+        SetFocus();
+        // FIXME_DFB -- don't do this for popup windows?
+
+    return true;
+}
+
+bool wxTopLevelWindowDFB::SetTransparent(wxByte alpha)
+{
+    if ( IsShown() )
+    {
+        if ( !DFB_CALL( m_dfbwin->SetOpacity(m_dfbwin, alpha) ) )
+            return false;
+    }
+
+    m_opacity = alpha;
+    return true;
+}
+
+// ----------------------------------------------------------------------------
+// maximize, minimize etc.
+// ----------------------------------------------------------------------------
+
+void wxTopLevelWindowDFB::Maximize(bool maximize)
+{
+    int x, y, w, h;
+    wxClientDisplayRect(&x, &y, &w, &h);
+
+    if ( maximize && !m_isMaximized )
+    {
+        m_isMaximized = true;
+
+        GetPosition(&m_savedFrame.x, &m_savedFrame.y);
+        GetSize(&m_savedFrame.width, &m_savedFrame.height);
+
+        SetSize(x, y, w, h);
+    }
+    else if ( !maximize && m_isMaximized )
+    {
+        m_isMaximized = false;
+        SetSize(m_savedFrame.x, m_savedFrame.y,
+                m_savedFrame.width, m_savedFrame.height);
+    }
+}
+
+bool wxTopLevelWindowDFB::IsMaximized() const
+{
+    return m_isMaximized;
+}
+
+void wxTopLevelWindowDFB::Restore()
+{
+    if ( IsMaximized() )
+    {
+        Maximize(false);
+    }
+}
+
+void wxTopLevelWindowDFB::Iconize(bool WXUNUSED(iconize))
+{
+    wxFAIL_MSG(wxT("Iconize not supported under wxDFB"));
+}
+
+bool wxTopLevelWindowDFB::IsIconized() const
+{
+    return false;
+}
+
+
+// ----------------------------------------------------------------------------
+// surfaces and painting
+// ----------------------------------------------------------------------------
+
+IDirectFBSurfacePtr wxTopLevelWindowDFB::ObtainDfbSurface() const
+{
+    IDirectFBSurfacePtr surface;
+    DFB_CALL( m_dfbwin->GetSurface(m_dfbwin, &surface) );
+    return surface;
+}
+
+void wxTopLevelWindowDFB::HandleQueuedPaintRequests()
+{
+    wxDfbQueuedPaintRequests& toPaint = *m_toPaint;
+    if ( toPaint.empty() )
+        return; // nothing to do
+
+    // process queued paint requests:
+    wxRect winRect(wxPoint(0, 0), GetSize());
+    wxRect paintedRect;
+
+    size_t cnt = toPaint.size();
+    for ( size_t i = 0; i < cnt; ++i )
+    {
+        const wxDfbPaintRequest& request = *toPaint[i];
+
+        wxRect clipped(request.m_rect);
+
+        wxLogTrace(TRACE_PAINT,
+                   _T("%p ('%s'): processing paint request [x=%i,y=%i,w=%i,h=%i]"),
+                   this, GetName().c_str(),
+                   clipped.x, clipped.y, clipped.width, clipped.height);
+
+        clipped.Intersect(winRect);
+        if ( clipped.IsEmpty() )
+            continue; // nothing to refresh
+
+        PaintWindow(clipped, request.m_eraseBackground);
+
+        // remember rectangle covering all repainted areas:
+        if ( paintedRect.IsEmpty() )
+            paintedRect = clipped;
+        else
+            paintedRect.Union(clipped);
+    }
+
+    WX_CLEAR_ARRAY(toPaint);
+
+    if ( paintedRect.IsEmpty() )
+        return; // no painting occurred, no need to flip
+
+    // flip the surface to make the changes visible:
+    DFBRegion r = {paintedRect.GetLeft(), paintedRect.GetTop(),
+                   paintedRect.GetRight(), paintedRect.GetBottom()};
+    DFBRegion *rptr = (winRect == paintedRect) ? NULL : &r;
+
+    IDirectFBSurfacePtr surface(GetDfbSurface());
+    DFB_CALL( surface->Flip(surface, rptr, DSFLIP_NONE) );
+}
+
+void wxTopLevelWindowDFB::DoRefreshRect(const wxRect& rect, bool eraseBack)
+{
+    // defer paiting until idle time or until Update() is called:
+    m_toPaint->push_back(new wxDfbPaintRequest(rect, eraseBack));
+}
+
+void wxTopLevelWindowDFB::Update()
+{
+    HandleQueuedPaintRequests();
+}
+
+// ---------------------------------------------------------------------------
+// events handling
+// ---------------------------------------------------------------------------
+
+/* static */
+void wxTopLevelWindowDFB::HandleDFBWindowEvent(const wxDFBWindowEvent& event_)
+{
+    const DFBWindowEvent& event = event_;
+
+    if ( gs_dfbWindowsMap.find(event.window_id) == gs_dfbWindowsMap.end() )
+    {
+        wxLogTrace(TRACE_EVENTS,
+                   _T("received event for unknown DirectFB window, ignoring"));
+        return;
+    }
+
+    wxTopLevelWindowDFB *tlw = gs_dfbWindowsMap[event.window_id];
+    wxWindow *recipient = NULL;
+    void (wxWindow::*handlerFunc)(const wxDFBWindowEvent&) = NULL;
+
+    switch ( event.type )
+    {
+        case DWET_KEYDOWN:
+        case DWET_KEYUP:
+        {
+            recipient = wxWindow::FindFocus();
+            handlerFunc = &wxWindowDFB::HandleKeyEvent;
+            break;
+        }
+
+        case DWET_NONE:
+        case DWET_ALL:
+        {
+            wxFAIL_MSG( _T("invalid event type") );
+            break;
+        }
+    }
+
+    if ( !recipient )
+    {
+        wxLogTrace(TRACE_EVENTS, _T("ignoring event: no recipient window"));
+        return;
+    }
+
+    wxCHECK_RET( recipient && recipient->GetTLW() == tlw,
+                 _T("event recipient not in TLW which received the event") );
+
+    // process the event:
+    (recipient->*handlerFunc)(event_);
+}
+
+// ---------------------------------------------------------------------------
+// idle events processing
+// ---------------------------------------------------------------------------
+
+void wxTopLevelWindowDFB::OnInternalIdle()
+{
+    wxTopLevelWindowBase::OnInternalIdle();
+    HandleQueuedPaintRequests();
+}